Found by cmd/vet
Change-Id: I29dd207ecd40fe703054e8ad4e81b3267ca89da2
Reviewed-on: https://go-review.googlesource.com/17160
Reviewed-by: David Crawshaw <crawshaw@golang.org>
In the past, cgo generated Go code and C code. The C code was linked
into a shared library. The Go code was built into an executable that
dynamically linked against that shared library. C wrappers were
exported from the shared library, and the Go code called them.
It was all a long time ago, but in order to permit C code to call back
into Go, somebody implemented #pragma dynexport (https://golang.org/cl/661043)
to export a Go symbol into the dynamic symbol table. Then that same
person added code to cgo to recognize //export comments
(https://golang.org/cl/853042). The //export comments were implemented
by generating C code, to be compiled by GCC, that would refer to C code,
to be compiled by 6c, that would call the Go code. The GCC code would
go into a shared library. The code compiled by 6c would be in the Go
executable. The GCC code needed to refer to the 6c code, so the 6c
function was marked with #pragma dynexport. The important point here is
that #pragma dynexport was used to expose an internal detail of the
implementation of an exported function, because at the time it was
necessary.
Moving forward to today, cgo no longer generates a shared library and 6c
no longer exists. It's still true that we have a function compiled by
GCC that refers to a wrapper function now written in Go. In the normal
case today we are doing an external link, and we use a
//go:cgo_export_static function to make the Go wrapper function visible
to the C code under a known name.
The #pragma dynexport statement has become a //go:cgo_export_dynamic
comment on the Go code. That comment only takes effect when doing
internal linking. The comment tells the linker to put the symbol in the
dynamic symbol table. That still makes sense for the now unusual case
of using internal linking with a shared library.
However, all the changes to this code have carefully preserved the
property that the //go:cgo_export_dynamic comment refers to an internal
detail of the implementation of an exported function. That was
necessary a long time ago, but no longer makes sense.
This CL changes the code to put the actual C-callable function into the
dynamic symbol table. I considered dropping the comment entirely, but
it turns out that there is even a test for this, so I preserved it.
Change-Id: I66a7958e366e5974363099bfaa6ba862ca327849
Reviewed-on: https://go-review.googlesource.com/17061
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
If you set GODEBUG=cgocheck=2 the runtime package will use the write
barrier to detect cases where a Go program writes a Go pointer into
non-Go memory. In conjunction with the existing cgo checks, and the
not-yet-implemented cgo check for exported functions, this should
reliably detect all cases (that do not import the unsafe package) in
which a Go pointer is incorrectly shared with C code. This check is
optional because it turns on the write barrier at all times, which is
known to be expensive.
Update #12416.
Change-Id: I549d8b2956daa76eac853928e9280e615d6365f4
Reviewed-on: https://go-review.googlesource.com/16899
Reviewed-by: Russ Cox <rsc@golang.org>
Change the linker to use a copy of the C compiler support library,
libgcc.a, when doing internal linking. This will be used to satisfy any
undefined symbols referenced by host objects.
Change the dist tool to copy the support library into a new directory
tree under GOROOT/pkg/libgcc. This ensures that libgcc is available
even when building Go programs on a system that has no C compiler. The
C compiler is required when building the Go installation in the first
place, but is not required thereafter.
Change the go tool to not link libgcc into cgo objects.
Correct the linker handling of a weak symbol in an ELF input object to
not always create a new symbol, but to use an existing symbol if there
is one; this is necessary on freebsd-amd64, where libgcc contains a weak
definition of compilerrt_abort_impl.
Fixes#9510.
Change-Id: I1ab28182263238d9bcaf6a42804e5da2a87d8778
Reviewed-on: https://go-review.googlesource.com/16741
Reviewed-by: Russ Cox <rsc@golang.org>
I keep losing this utility, used as part of other tools to auto-update
the AUTHORS and CONTRIBUTORS files. Check it in to the repo so I
don't lose it, and so others can use it as well.
Updates #12042
Change-Id: Ib5886b85799087aaaddcec4c81169e2726322c05
Reviewed-on: https://go-review.googlesource.com/16824
Reviewed-by: Russ Cox <rsc@golang.org>
The runtime is not instrumented, but the calls to msanread in the
runtime can sometimes refer to the system stack. An example is the call
to copy in stkbucket in mprof.go. Depending on what C code has done,
the system stack may appear uninitialized to msan.
Change-Id: Ic21705b9ac504ae5cf7601a59189302f072e7db1
Reviewed-on: https://go-review.googlesource.com/16660
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This is a fix for the -msan option when using cgo callbacks. A cgo
callback works by writing out C code that puts a struct on the stack and
passes the address of that struct into Go. The result parameters are
fields of the struct. The Go code will write to the result parameters,
but the Go code thinks it is just writing into the Go stack, and
therefore won't call msanwrite. This CL adds a call to msanwrite in the
cgo callback code so that the C knows that results were written.
Change-Id: I80438dbd4561502bdee97fad3f02893a06880ee1
Reviewed-on: https://go-review.googlesource.com/16611
Reviewed-by: David Crawshaw <crawshaw@golang.org>
When using gccgo it's OK if a pointer passed to C remains on the stack.
Gccgo does not have the clear distinction between C and Go stacks.
Change-Id: I3af9dd6fe078214ab16d9d8dad2d206608d7891d
Reviewed-on: https://go-review.googlesource.com/16774
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
This implements part of the proposal in issue 12416 by adding dynamic
checks for passing pointers from Go to C. This code is intended to be
on at all times. It does not try to catch every case. It does not
implement checks on calling Go functions from C.
The new cgo checks may be disabled using GODEBUG=cgocheck=0.
Update #12416.
Change-Id: I48de130e7e2e83fb99a1e176b2c856be38a4d3c8
Reviewed-on: https://go-review.googlesource.com/16003
Reviewed-by: Russ Cox <rsc@golang.org>
This is, in effect, what the gc toolchain does. It fixes cases where Go
code refers to a C global variable; without this, if the global variable
was the only thing visible in the C code, the generated cgo file might
not get pulled in from the archive, leaving the Go variable
uninitialized.
This was reported against gccgo as https://gcc.gnu.org/PR68255 .
Change-Id: I3e769dd174f64050ebbff268fbbf5e6fab1e2a1b
Reviewed-on: https://go-review.googlesource.com/16775
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
And enable PIE in cmd/go because that's all it seems to take.
Change-Id: Ie017f427ace5e91de333a9f7cba9684c4641dfd5
Reviewed-on: https://go-review.googlesource.com/14222
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The current mechanism fails if clang cannot be executed by the current
user. Using the `-x` operator for `test` return TRUE if the file is
executable by the user.
Change-Id: I0f3c8dc3880c1ce5a8a833ff3109eb96853184af
Reviewed-on: https://go-review.googlesource.com/16752
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The existing go_darwin_arm_exec.go script does not work with Xcode 7,
not due to any significant changes, but just ordering and timing of
statements from lldb. Unfortunately the current design of
go_darwin_arm_exec.go makes it not obvious what gets stuck where, so
this moves from a moving buffer window to a complete buffer of the
lldb output.
The result is easier code to follow, and it works with Xcode 7.
Updates #12660.
Change-Id: I3b8b890b0bf4474119482e95d84e821a86d1eaed
Reviewed-on: https://go-review.googlesource.com/16634
Reviewed-by: Michael Matloob <matloob@golang.org>
The width of the type of an external variable defined with a type
literal may not be set when the instrumentation pass is run. There are
two cases in the standard library that fail without the call to dowidth:
../../../src/encoding/base32/base32.go:322: constant -1000000000 overflows uintptr
../../../src/encoding/base32/base32.go:329: constant -1000000000 overflows uintptr
../../../src/encoding/json/encode.go:385: constant -1000000000 overflows uintptr
../../../src/encoding/json/encode.go:387: constant -1000000000 overflows uintptr
Change-Id: I7c3334f7decdb7488595ffe4090cd262d7334283
Reviewed-on: https://go-review.googlesource.com/16331
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
On older versions of GCC we need to pass a file name before GCC will
report an unrecognized option.
Fixes#13065.
Change-Id: I7ed34c01a006966a446059025f7d10235c649072
Reviewed-on: https://go-review.googlesource.com/16589
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
The error message should indicate the name of the unset variable,
rather than the value. The value will alwayse be empty.
Change-Id: I6f6c165074dfce857b6523703a890d205423cd28
Reviewed-on: https://go-review.googlesource.com/16555
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Depends on external linking right now. I have no immediate use for
this, but wanted to check how hard it is to support as android/amd64
is coming and it will require PIE.
Change-Id: I65c6b19159f40db4c79cf312cd0368c2b2527bfd
Reviewed-on: https://go-review.googlesource.com/16072
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Also fix the msan_fail test. It was bogus, since it always aborted one
way or another.
Change-Id: Ic693327d1bddb7bc5c7d859ac047fc93cb9b5b1c
Reviewed-on: https://go-review.googlesource.com/16172
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The -msan option compiles Go code to use the memory sanitizer. This is
intended for use when linking with C/C++ code compiled with
-fsanitize=memory. When memory blocks are passed back and forth between
C/C++ and Go, code in both languages will agree as to whether the memory
is correctly initialized or not, and will report errors for any use of
uninitialized memory.
Change-Id: I2dbdbd26951eacb7d84063cfc7297f88ffadd70c
Reviewed-on: https://go-review.googlesource.com/16169
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Replace the confusing game where a frame size of $-8 would suppress the
implicit setting up of a stack frame with a nice explicit flag.
The code to set up the function prologue is still a little confusing but better
than it was.
Change-Id: I1d49278ff42c6bc734ebfb079998b32bc53f8d9a
Reviewed-on: https://go-review.googlesource.com/15670
Reviewed-by: Minux Ma <minux@golang.org>
Also, handle the case where 'read' returns EINVAL instead of EBADF
when the descriptor is not ready. (android 4.4.4/cyanogenmod, nexus7)
Change-Id: I56c5949d27303d44a4fd0de38951b85e20cef167
Reviewed-on: https://go-review.googlesource.com/15810
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Fixes these warnings from go vet:
buildid_linux.go:25: no formatting directive in Fatalf call
callback.go:180: arg pc[i] for printf verb %p of wrong type: uintptr
env.go:34: possible misuse of unsafe.Pointer
issue7665.go:22: possible misuse of unsafe.Pointer
Change-Id: I83811b9c10c617139713a626b4a34ab05564d4fe
Reviewed-on: https://go-review.googlesource.com/15802
Reviewed-by: David Crawshaw <crawshaw@golang.org>
cgo panics in Package.rewriteRef for:
var a = C.enum_test(1)
or
p := new(C.enum_test)
when the corresponding enum type is not defined.
Check nil values for Type fields and issue a proper
error instead.
Fixes#11097
Updates #12160
Change-Id: I5821d29097ef0a36076ec5273125b09846c7d832
Reviewed-on: https://go-review.googlesource.com/15264
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The memory sanitizer (msan) is a nice compiler feature that can
dynamically check for memory errors in C code. It's not useful for Go
code, since Go is memory safe. But it is useful to be able to use the
memory sanitizer on C code that is linked into a Go program via cgo.
Without this change it does not work, as msan considers memory passed
from Go to C as uninitialized.
To make this work, change the runtime to call the C mmap function when
using cgo. When using msan the mmap call will be intercepted and marked
as returning initialized memory.
Work around what appears to be an msan bug by calling malloc before we
call mmap.
Change-Id: I8ab7286d7595ae84782f68a98bef6d3688b946f9
Reviewed-on: https://go-review.googlesource.com/15170
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Glibc uses some special signals for special thread operations. These
signals will be used in programs that use cgo and invoke certain glibc
functions, such as setgid. In order for this to work, these signals
need to not be masked by any thread. Before this change, they were
being masked by programs that used os/signal.Notify, because it
carefully masks all non-thread-specific signals in all threads so that a
dedicated thread will collect and report those signals (see ensureSigM
in signal1_unix.go).
This change adds the two glibc special signals to the set of signals
that are unmasked in each thread.
Fixes#12498.
Change-Id: I797d71a099a2169c186f024185d44a2e1972d4ad
Reviewed-on: https://go-review.googlesource.com/14297
Reviewed-by: David Crawshaw <crawshaw@golang.org>
It's because runtime links to ntdll, and ntdll exports a couple
incompatible libc functions. We must link to msvcrt first and
then try ntdll.
Fixes#12030.
Change-Id: I0105417bada108da55f5ae4482c2423ac7a92957
Reviewed-on: https://go-review.googlesource.com/14472
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Currently Go produces shared libraries that cannot be shared between processes
because they have relocations against the text segment (not text section). This
fixes this by moving some data to sections with magic names recognized by the
static linker.
The change in genasmsym to add STYPELINK to the switch should fix things on
darwin/arm64.
Fixes#10914
Updates #9210
Change-Id: Iab4a6678dd04cec6114e683caac5cf31b1063309
Reviewed-on: https://go-review.googlesource.com/14306
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This reverts commit 2c2cbb69c8.
Broke darwin/arm64
Change-Id: Ibd2dea475d6ce6a8b4b40e2da19a83fc0514025d
Reviewed-on: https://go-review.googlesource.com/14301
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Currently Go produces shared libraries that cannot be shared between processes
because they have relocations against the text segment (not text section). This
fixes this by moving some data to sections with magic names recognized by the
static linker.
Fixes#10914
Updates #9210
Change-Id: I7178daadc0ae87953d5a084aa3d580f4e3b46d47
Reviewed-on: https://go-review.googlesource.com/10300
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Fixes#12083
Change-Id: I8256739b33cf08d84dec23120d527667de2e6eea
Reviewed-on: https://go-review.googlesource.com/13822
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
In order to fix issue #9401 the compiler was changed to add a padding
byte to any non-empty Go struct that ends in a zero-sized field. That
causes the Go version of such a C struct to have a different size than
the C struct, which can considerable confusion. Change cgo so that it
discards any such zero-sized fields, so that the Go and C structs are
the same size.
This is a change from previous releases, in that it used to be
possible to refer to a zero-sized trailing field (by taking its
address), and with this change it no longer is. That is unfortunate,
but something has to change. It seems better to visibly break
programs that do this rather than to silently break programs that rely
on the struct sizes being the same.
Update #9401.
Fixes#11925.
Change-Id: I3fba3f02f11265b3c41d68616f79dedb05b81225
Reviewed-on: https://go-review.googlesource.com/12864
Reviewed-by: Russ Cox <rsc@golang.org>
This is now superseded by golang.org/x/build/cmd/release.
Fixes#8472
Change-Id: I59664d84996a0fbb5c90582a4702714b3b3cf302
Reviewed-on: https://go-review.googlesource.com/12500
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This is mostly Russ's https://golang.org/cl/12145 but with some extra fixes to
account for the fact that function declarations without implementations now
break shared libraries, and including my test case.
Fixes#11480.
Change-Id: Iabdc2934a0378e5025e4e7affadb535eaef2c8f1
Reviewed-on: https://go-review.googlesource.com/12340
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The one in misc/makerelease/makerelease.go is particularly bad and
probably warrants rotating our keys.
I didn't update old weekly notes, and reverted some changes involving
test code for now, since we're late in the Go 1.5 freeze. Otherwise,
the rest are all auto-generated changes, and all manually reviewed.
Change-Id: Ia2753576ab5d64826a167d259f48a2f50508792d
Reviewed-on: https://go-review.googlesource.com/12048
Reviewed-by: Rob Pike <r@golang.org>
Integrate the latest trace-viewer changes.
It now handles nanoseconds without any issues (thanks to @egonelbre!).
So change timestamps from microseconds to nanoseconds.
Change-Id: I010f27effde7e80c9992e6f276f6912354d27df4
Reviewed-on: https://go-review.googlesource.com/11244
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Egon Elbre <egonelbre@gmail.com>
Refactor main a bit to make it possible to run tests without an exec every time.
(Makes a huge difference in run time.)
Add a silver test. Not quite golden, since it looks for pieces rather than the
full output, and also includes tests for what should not appear.
Fixes#10920.
Change-Id: I6a4951cc14e61763379754a10b0cc3484d30c267
Reviewed-on: https://go-review.googlesource.com/11272
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Rob Pike <r@golang.org>
All of the heavy-lifting was done by minux@, with his external-linking support
for darwin/arm64: golang.org/cl/8781
Change-Id: I7c9fbc19246f418c065c92fb2c13c00026ff0f82
Reviewed-on: https://go-review.googlesource.com/11127
Run-TryBot: Srdjan Petrovic <spetrovic@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Adjust timestamps in TestABIChecking to make sure that the library and
executable are rebuilt when expected.
Change-Id: I3288c254ba8201b5b4255347b0cb056fa0908657
Reviewed-on: https://go-review.googlesource.com/11128
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: Yves Junqueira <yves.junqueira@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This change reintroduces CL 8523. CL 8523 was reverted because
it broke darwin and netbsd builds. Now that this test is part
of "go tool dist test" command we could skip OSes that fail.
Updates #10360
Change-Id: Iaaeb5b800126492f36415a439c333a218fe4ab67
Reviewed-on: https://go-review.googlesource.com/11119
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This makes the behaviour match what happens when duplicate symbols are read
from regular object files and fixes errors about cgoAlwaysFalse when linking
an executable that uses cgo against a shared library.
Change-Id: Ibb8cd8fe3f7813cde504b7483f1e857868d7e063
Reviewed-on: https://go-review.googlesource.com/11117
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Change-Id: Id93b8ab42fa311ce32209734ec9a0813f8736e25
Reviewed-on: https://go-review.googlesource.com/9914
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Update to tip to fix#11003 (not possible to select events in chromium).
Fixed#11003
Change-Id: Ibba5d39ca809cfd5cb79c9e6d152b00899d49e08
Reviewed-on: https://go-review.googlesource.com/11062
Reviewed-by: Andrew Gerrand <adg@golang.org>
I would like to re-apply reverted http://golang.org/cl/8523.
Reverted tests still fail in some environments (see issue #10360).
It is easier to run tests selectively when in Go.
This CL prepares for the changes.
Updates #10360
Change-Id: Iefeb1d71cb3d1cfa653a6ccd9f6e35686c0c5b24
Reviewed-on: https://go-review.googlesource.com/10608
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
We already read the address of a gcmask/gcprog out of the type data, but I
didn't know how many bytes to read. But it turns out that it's easy to
calculate, so change to do that. This means that we no longer depend on the
local symbols being present, allowing me to strip the shared libraries for
distribution and make them a lot smaller.
As a bonus, this makes LSym another 24 bytes smaller, down to 296 bytes now.
Change-Id: I379d359e28d63afae6753efd23efdf1fbb716992
Reviewed-on: https://go-review.googlesource.com/10377
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The motivation for this is the innocuous looking test case that is added. This
creates a stack exe -> libdep2.so -> libdep.so -> libruntime.so. The problem
comes from the fact that a function from libdep.so gets inlined all the way
into exe. This (unsurprisingly) means that the object file for exe references
symbols from libdep.so, which means that -ldep needs to be passed when linking
exe and it isn't. The fix is simply to pass it -- there is no harm in passing
it when it's not needed.
The thing is, it's not clear at all in the current code to see how the linker
can know that libdep2 is linked against libdep. It could look through the
DT_NEEDED entries in libdep2 and try to guess which are Go libraries, but it
feels better to be explicit. So this adds another SHT_NOTE section that lists
the shared libraries a shared library was linked against, and makes sure the
complete set of depended upon shared libraries is passed to the external
linker.
Change-Id: I79aa6f98b4db4721d657a7eb7b7f062269bf49e2
Reviewed-on: https://go-review.googlesource.com/10376
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This makes for a more stable API for tools (including cmd/link itself) to
extract the abi hash from a shared library and makes it possible at all for a
library that has had the local symbol table removed.
The existing note-writing code only supports writing notes into the very start
of the object file so they are easy to find in core dumps. This doesn't apply
to the "go" notes and means that all notes have to fit into a fixed size
budget. That's annoying now we have more notes (and the next CL will add
another one) so this does a little bit of work to make adding notes that do not
have to go at the start of the file easier and moves the writing of the package
list note over to that mechanism, which lets me revert a hack that increased
the size budget mentioned above for -buildmode=shared builds.
Change-Id: I6077a68d395c8a2bc43dec8506e73c71ef77d9b9
Reviewed-on: https://go-review.googlesource.com/10375
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Change-Id: I8694ee5e5642c31815ae63cd414a3b1fcd9c95b0
Reviewed-on: https://go-review.googlesource.com/10411
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Fix build error when CL=clang introduced by CL 10173.
Change-Id: I8edf210787a9803280c0779ff710c7e634a820d6
Reviewed-on: https://go-review.googlesource.com/10341
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Ian proposed an improved way of handling signals masks in Go, motivated
by a problem where the Android java runtime expects certain signals to
be blocked for all JVM threads. Discussion here
https://groups.google.com/forum/#!topic/golang-dev/_TSCkQHJt6g
Ian's text is used in the following:
A Go program always needs to have the synchronous signals enabled.
These are the signals for which _SigPanic is set in sigtable, namely
SIGSEGV, SIGBUS, SIGFPE.
A Go program that uses the os/signal package, and calls signal.Notify,
needs to have at least one thread which is not blocking that signal,
but it doesn't matter much which one.
Unix programs do not change signal mask across execve. They inherit
signal masks across fork. The shell uses this fact to some extent;
for example, the job control signals (SIGTTIN, SIGTTOU, SIGTSTP) are
blocked for commands run due to backquote quoting or $().
Our current position on signal masks was not thought out. We wandered
into step by step, e.g., http://golang.org/cl/7323067 .
This CL does the following:
Introduce a new platform hook, msigsave, that saves the signal mask of
the current thread to m.sigsave.
Call msigsave from needm and newm.
In minit grab set up the signal mask from m.sigsave and unblock the
essential synchronous signals, and SIGILL, SIGTRAP, SIGPROF, SIGSTKFLT
(for systems that have it).
In unminit, restore the signal mask from m.sigsave.
The first time that os/signal.Notify is called, start a new thread whose
only purpose is to update its signal mask to make sure signals for
signal.Notify are unblocked on at least one thread.
The effect on Go programs will be that if they are invoked with some
non-synchronous signals blocked, those signals will normally be
ignored. Previously, those signals would mostly be ignored. A change
in behaviour will occur for programs started with any of these signals
blocked, if they receive the signal: SIGHUP, SIGINT, SIGQUIT, SIGABRT,
SIGTERM. Previously those signals would always cause a crash (unless
using the os/signal package); with this change, they will be ignored
if the program is started with the signal blocked (and does not use
the os/signal package).
./all.bash completes successfully on linux/amd64.
OpenBSD is missing the implementation.
Change-Id: I188098ba7eb85eae4c14861269cc466f2aa40e8c
Reviewed-on: https://go-review.googlesource.com/10173
Reviewed-by: Ian Lance Taylor <iant@golang.org>
In preparation for making the current linker cmd/link.
If cmd/newlink is ever completed, it can be moved back.
See golang-dev thread titled "go tool compile, etc" for background.
Change-Id: I4029580f470038240c5181a37ea4202ba971f9ef
Reviewed-on: https://go-review.googlesource.com/10286
Reviewed-by: Rob Pike <r@golang.org>
On my systems, ld -rpath sets DT_RUNPATH instead of DT_RPATH.
Change-Id: I5047e795fb7ef9336f5fa13ba24bb6245c0b0582
Reviewed-on: https://go-review.googlesource.com/10260
Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
And fix to work on filesystems with only 1s resolution.
Fixes#10724
Change-Id: Ia07463f090b4290fc27f5953fa94186463d7afc7
Reviewed-on: https://go-review.googlesource.com/9768
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
'env' command is not available on some android devices.
Change-Id: I68b1152ef7ea248c8e80c7f71e97da76e3ec6394
Reviewed-on: https://go-review.googlesource.com/9999
Reviewed-by: Minux Ma <minux@golang.org>
On android the generated header files are located in
pkg/$(go env GOOS)_$(go env GOARCH)_testcshared.
The test was broken since https://go-review.googlesource.com/9798.
The installation path differs based on codegenArgs
(around src/cmd/go/build.go line 389), and the codegenArgs
is platform dependent.
Change-Id: I01ae9cb957fb7676e399f3b8c067f24c5bd20b9d
Reviewed-on: https://go-review.googlesource.com/9980
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This:
1) Defines the ABI hash of a package (as the SHA1 of the __.PKGDEF)
2) Defines the ABI hash of a shared library (sort the packages by import
path, concatenate the hashes of the packages and SHA1 that)
3) When building a shared library, compute the above value and define a
global symbol that points to a go string that has the hash as its value.
4) When linking against a shared library, read the abi hash from the
library and put both the value seen at link time and a reference
to the global symbol into the moduledata.
5) During runtime initialization, check that the hash seen at link time
still matches the hash the global symbol points to.
Change-Id: Iaa54c783790e6dde3057a2feadc35473d49614a5
Reviewed-on: https://go-review.googlesource.com/8773
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
addmoduledata is called from a .init_array function and need to follow the
platform ABI. It contains accesses to global data which are rewritten to use
R15 by the assembler, and as R15 is callee-save we need to save it.
Change-Id: I03893efb1576aed4f102f2465421f256f3bb0f30
Reviewed-on: https://go-review.googlesource.com/9941
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The trace-viewer doesn't use the Go license, so it makes sense
to include the license text into the README.md file.
While we're at here, reformat existing text using real Markdown
syntax.
Change-Id: I13e42d3cc6a0ca7e64e3d46ad460dc0460f7ed09
Reviewed-on: https://go-review.googlesource.com/9882
Reviewed-by: Rob Pike <r@golang.org>
When
using -buildmode=c-archive or c-shared, and
when installing packages that use cgo, and
when those packages export some functions via //export comments,
then
for each such package, install a pkg.h header file that declares the
functions.
This permits C code to #include the header when calling the Go
functions.
This is a little awkward to use when there are multiple packages that
export functions, as you have to "go install" your c-archive/c-shared
object and then pull it out of the package directory. When compiling
your C code you have to -I pkg/$GOOS_$GOARCH. I haven't thought of
any more convenient approach. It's simpler when only the main package
has exported functions.
When using c-shared you currently have to use a _shared suffix in the
-I option; it would be nice to fix that somehow.
Change-Id: I5d8cf08914b7d3c2b194120c77791d2732ffd26e
Reviewed-on: https://go-review.googlesource.com/9798
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This changes the action graph when shared libraries are involved to always have
an action for the shared library (which does nothing when the shared library
is up to date).
Change-Id: Ibbc70fd01cbb3f4e8c0ef96e62a151002d446144
Reviewed-on: https://go-review.googlesource.com/8934
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Fix several warnings generated on the linux-amd64-clang builder
and make it clear to clang that -znow is a linker only flag.
Tested with
env CC=clang-3.5 ./all.bash
env CC=gcc-4.8 ./all.bash
Change-Id: I5ca7366ba8bf6221a36d25a2157dda4b4f3e16fa
Reviewed-on: https://go-review.googlesource.com/9523
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Just a first basic test, I'll extend this to test more but want to get an
opinion on basic approach first.
Change-Id: Idab9ebd7d9960b000b81a01a1e53258bf4bce755
Reviewed-on: https://go-review.googlesource.com/9386
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
This doesn't test much with gccgo, but at least it builds now, and the
test does, unsurprisingly, pass. A proper test would require adding
assembly files in GCC syntax for all platforms that gccgo supports,
which would be infeasible.
Also added copyright headers to the asm files.
Change-Id: Icea5af29d7d521a0681506ddb617a79705b76d33
Reviewed-on: https://go-review.googlesource.com/9417
Reviewed-by: Minux Ma <minux@golang.org>
Instead of comparing against the entire output that may include
verbose warning messages, use the last line of the output and check
it includes the expected success message (PASS).
Change-Id: Iafd583ee5529a8aef5439b9f1f6ce0185e4b1331
Reviewed-on: https://go-review.googlesource.com/9304
Reviewed-by: David Crawshaw <crawshaw@golang.org>
- main3.c tests main.main is exported when compiled for GOOS=android.
- wait longer for main2.c (it's slow on android/arm)
- rearranged test.bash
Fixes#10070.
Change-Id: I6e5a98d1c5fae776afa54ecb5da633b59b269316
Reviewed-on: https://go-review.googlesource.com/9296
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Forward signals to signal handlers installed before Go installs its own,
under certain circumstances. In particular, as iant@ suggests, signals are
forwarded iff:
(1) a non-SIG_DFL signal handler existed before Go, and
(2) signal is synchronous (i.e., one of SIGSEGV, SIGBUS, SIGFPE), and
(3a) signal occured on a non-Go thread, or
(3b) signal occurred on a Go thread but in CGo code.
Supported only on Linux, for now.
Change-Id: I403219ee47b26cf65da819fb86cf1ec04d3e25f5
Reviewed-on: https://go-review.googlesource.com/8712
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The purpose of this test is to make sure that -buildmode=c-shared
works even when the shared library can be built without invoking cgo.
Change-Id: Id6f95af755992b209aff770440ca9819b74113ab
Reviewed-on: https://go-review.googlesource.com/9166
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Change-Id: I0d3f9841500e0a41f1c427244869bf3736a31e18
Reviewed-on: https://go-review.googlesource.com/9075
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Followed the same test pattern in misc/cgo/testcarchive.
Change-Id: I2f863b5c24a28f0b38b0128ed3e8a92c17fb5b9f
Reviewed-on: https://go-review.googlesource.com/8985
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This memory is untyped and can't be used anymore.
The next version of SWIG won't need it.
Change-Id: I592b287c5f5186975ee09a9b28d8efe3b57134e7
Reviewed-on: https://go-review.googlesource.com/8956
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This is a follow-up to CL 8910.
This is the version that I have tested and which works
when appID and teamID are not the same (which they appear
to be for the builder).
I am unsure how I submitted it with the wrong code.
Change-Id: I186e34e91953d082b507390c1cd2042e5419c4c9
Reviewed-on: https://go-review.googlesource.com/8943
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Because there is no libgcc.
Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f07
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8786
Reviewed-by: David Crawshaw <crawshaw@golang.org>
We no longer need the EXC_BAD_ACCESS watcher as runtime/cgo contains
a mach exception handler that catches it. And now lldb only
intermittently reports process connection and exiting, so instead
just look for the PASS from Go.
Change-Id: I403266558f5a900e0b87ec1019d9baec88148d23
Reviewed-on: https://go-review.googlesource.com/8957
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Use environment variables to allow set-and-forget.
Add a script to attempt to autodetect codesign info.
Change-Id: Ic56b9c5f097b1a4117ebb89c408bc333d91f581d
Reviewed-on: https://go-review.googlesource.com/8910
Reviewed-by: David Crawshaw <crawshaw@golang.org>
With the new buildmodes c-archive and c-shared, it is possible for a
cgo call to come in early in the lifecycle of a Go program. Calls
before the runtime has been initialized are caught by
_cgo_wait_runtime_init_done. However a call can come in after the
runtime has initialized, but before the program's package init
functions have finished running.
To avoid this cgocallback checks m.ncgo to see if we are on a thread
running Go. If not, we may be a foreign thread and it blocks until
main_init is complete.
Change-Id: I7a9f137fa2a40c322a0b93764261f9aa17fcf5b8
Reviewed-on: https://go-review.googlesource.com/8897
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
The -lldb flag makes it easy to use go run and end up in a debugging
session on darwin/arm.
Change-Id: I556f93e950086a7dff4839f301b9c55f7579f87b
Reviewed-on: https://go-review.googlesource.com/8024
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
This reverts commit 9fa9f966e9.
The change has broken darwin and netbsd builders. It needs to be tested properly.
Change-Id: Id9e2d30caa8764c362c9f33890015dfc1aae0dab
Reviewed-on: https://go-review.googlesource.com/8527
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
After moving the darwin/arm builder to new hardware several new flaky
error messages appeared. This provided enough information to Google
to make it clear that iOS build systems have been flaky for many
years, and that is unlikely to change any time soon.
However, all of the pain of lldb and using a breakpoint early in
program initialization gives us an advantage: all install and
initialization flakiness appears to happen before the Go program ever
gets going. So if we see an error or we timeout before we reach our
breakpoint (before any test code has executed), we can assume it is
the fault of the builder and restart without risking hiding a flaky
Go test.
This code has successfully processed the last 8 builds. I am hopeful.
Change-Id: Ide24aaae4fa7bdab9d8f4432bb85d8f2256c7606
Reviewed-on: https://go-review.googlesource.com/8241
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
The clever partial timer I added interacts badly with iOS app launch
timeout termination. A fixed timeout will be easier to debug.
Change-Id: I6eb4ee5f1431539f00fa707e8cde6f3cf86983fc
Reviewed-on: https://go-review.googlesource.com/8083
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Split out from cl/8024 for clarity and improved approach.
Rarely, "stop reason = breakpoint" does not appear in the lldb stop
text. However the program is ready to proceed. To be a little more
robust about those cases, we wait for two seconds, and if that text
doesn't appear but a prompt does we continue and hope for the best.
Worst case, this results in a harder to read failure message.
Change-Id: Ib20aa92564cdccefd2b7260417c647cd44122b66
Reviewed-on: https://go-review.googlesource.com/8080
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
The SecureRandom named service was removed in
https://codereview.chromium.org/550523002. And the new syscall
was introduced in https://codereview.chromium.org/537543003.
Accepting this will remove the support for older version of
sel_ldr. I've confirmed that both pepper_40 and current
pepper_canary have this syscall.
After this change, we need sel_ldr from pepper_39 or above to
work.
Fixes#9261
Change-Id: I096973593aa302ade61f259a3a71ebc7c1a57913
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/1755
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
The test used to import ../callback. I forget why that ever worked,
but it probably had something to do with the shared libraries we used
to use with SWIG. It doesn't work today.
Change-Id: Ib83d6c398aa46bf2fc66320b47b6e6d9897ee0b7
Reviewed-on: https://go-review.googlesource.com/7004
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This will enable test sharding over multiple VMs, to speed trybot answers.
Update #10029
Change-Id: Ie277c6459bc38005e4d6af14d22effeaa0a4667e
Reviewed-on: https://go-review.googlesource.com/6531
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
We now wait until we see the completed prompt from a command before
proceeding. This seems to cut down on a spurious error I have seen
this afternoon.
Change-Id: Ic0a3481d8c265c3c3b4449ec7ac1c2752b85b0b6
Reviewed-on: https://go-review.googlesource.com/6691
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
See golang.org/cl/6511.
Change-Id: I2145a42877ed6b78400f29c2ef18969870dab5c3
Reviewed-on: https://go-review.googlesource.com/6512
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
This script is getting very close to complete, and is complex enough
that I'd like to get what's there so far reviewed. With it the builder
is left failing on eight packages. Two of those involve correcting
GOROOT which may need modifications to this script, the others are
either a unix sockets bug I have to hunt down or are caused by lldb
getting stuck on SIGSEGV, a TODO.
Change-Id: I5ff933800167b6764b51ad195da7dcda61d59ff8
Reviewed-on: https://go-review.googlesource.com/6404
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Trace command allows to visualize and analyze traces.
Run as:
$ go tool trace binary trace.file
The commands opens web browser with the main page,
which contains links for trace visualization,
blocking profiler, network IO profiler and per-goroutine
traces.
Also move trace parser from runtime/pprof/trace_parser_test.go
to internal/trace/parser.go, so that it can be shared between
tests and the command.
Change-Id: Ic97ed59ad6e4c7e1dc9eca5e979701a2b4aed7cf
Reviewed-on: https://go-review.googlesource.com/3601
Reviewed-by: Andrew Gerrand <adg@golang.org>
Only documentation / comment changes. Update references to
point to golang.org permalinks or go.googlesource.com/go.
References in historical release notes under doc are left as is.
Change-Id: Icfc14e4998723e2c2d48f9877a91c5abef6794ea
Reviewed-on: https://go-review.googlesource.com/4060
Reviewed-by: Ian Lance Taylor <iant@golang.org>
On Darwin/ARM, because libSystem doesn't provide functions for
__sync_fetch_and_add, and only clang can inline that function,
skip the test when building with GCC.
Change-Id: Id5e9d8f9bbe1e6bcb2f381f0f66cf68aa95277c7
Reviewed-on: https://go-review.googlesource.com/2125
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This dashboard is no longer in use, and doesn't work with Gerrit.
Change-Id: Ib7c367dcad97322566610157b15e23db5bec58ff
Reviewed-on: https://go-review.googlesource.com/3028
Reviewed-by: David Symonds <dsymonds@golang.org>
This change includes the cleanup of temporary files created during
the binary execution as well.
Change-Id: Ic01a0a537d1daafcaa3acda1ec344aff5dcddfc2
Reviewed-on: https://go-review.googlesource.com/2903
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This test requires external linking, but we don't yet implement
external linking on ppc64 (tracked in issue #8912). Disable the test
on ppc64 until external linking is implemented.
This makes all.bash pass on ppc64le.
Change-Id: I741498d4d9321607e7a65792a33faf8187bd18e4
Reviewed-on: https://go-review.googlesource.com/2908
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Git marks some of its files read only, so os.RemoveAll isn't sufficient
to remove them from the ".git" directory.
Change-Id: I3150596931d1c77e7cf9fb8da1a999d2c6730121
Reviewed-on: https://go-review.googlesource.com/2930
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
While we're here, rename TestIssue7234 to Test7234 for consistency
with other tests.
Fixes#9557.
Change-Id: I22b0a212b31e7b4f199f6a70deb73374beb80f84
Reviewed-on: https://go-review.googlesource.com/2654
Reviewed-by: Ian Lance Taylor <iant@golang.org>
SWIG has always returned a typed interface value for a C++ class,
so the interface value will never be nil even if the pointer itself
is NULL. ptr == NULL in C/C++ should be ptr.Swigcptr() == 0 in Go.
Fixes#9514.
Change-Id: I3778b91acf54d2ff22d7427fbf2b6ec9b9ce3b43
Reviewed-on: https://go-review.googlesource.com/2440
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Now that there's no 6c compiler anymore, there's no need for cgo to
generate C headers that are compatible with it.
Fixes#9528
Change-Id: I43f53869719eb9a6065f1b39f66f060e604cbee0
Reviewed-on: https://go-review.googlesource.com/2482
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This test is doing pointer graph manipulation from C, and we
cannot support that with concurrent GC. The wbshadow mode
correctly diagnoses missing write barriers.
Disable the test in that mode for now. There is a bigger issue
behind it, namely SWIG, but for now we are focused on making
all.bash pass with wbshadow enabled.
Change-Id: I55891596d4c763e39b74082191d4a5fac7161642
Reviewed-on: https://go-review.googlesource.com/2346
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
Use typedmemmove, typedslicecopy, and adjust reflect.call
to execute the necessary write barriers.
Found with GODEBUG=wbshadow=2 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.
Change-Id: Iec5b5b0c1be5589295e28e5228e37f1a92e07742
Reviewed-on: https://go-review.googlesource.com/2312
Reviewed-by: Keith Randall <khr@golang.org>
For Go 1.5, we can use go:linkname rather than assembly thunk for gc.
Gccgo already has support for //extern.
Change-Id: I5505aa247dd5b555112f7261ed2f192c81cf0bdf
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/1888
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
issue9400_linux.go did not build on 386 because it used a constant
that was larger than a 32-bit int in a ... argument. Fix this by
casting the constant to uint64 (to match how the constant is being
used).
Change-Id: Ie8cb64c3910382a41c7852be7734a62f0b2d5a21
Reviewed-on: https://go-review.googlesource.com/2060
Reviewed-by: Ian Lance Taylor <iant@golang.org>
These signals are used by glibc to broadcast setuid/setgid to all
threads and to send pthread cancellations. Unlike other signals, the
Go runtime does not intercept these because they must invoke the libc
handlers (see issues #3871 and #6997). However, because 1) these
signals may be issued asynchronously by a thread running C code to
another thread running Go code and 2) glibc does not set SA_ONSTACK
for its handlers, glibc's signal handler may be run on a Go stack.
Signal frames range from 1.5K on amd64 to many kilobytes on ppc64, so
this may overflow the Go stack and corrupt heap (or other stack) data.
Fix this by ensuring that these signal handlers have the SA_ONSTACK
flag (but not otherwise taking over the handler).
This has been a problem since Go 1.1, but it's likely that people
haven't encountered it because it only affects setuid/setgid and
pthread_cancel.
Fixes#9600.
Change-Id: I6cf5f5c2d3aa48998d632f61f1ddc2778dcfd300
Reviewed-on: https://go-review.googlesource.com/1887
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Gccgo can only get a backtrace for the currently running thread, which
means that it can only get a backtrace for goroutines currently running
Go code. When a goroutine is running C code, gccgo has no way to stop
it and get the backtrace. This test is all about getting a backtrace
of goroutines running C code, so it can't work for gccgo.
Change-Id: I2dff4403841fb544da7396562ab1193875fc14c3
Reviewed-on: https://go-review.googlesource.com/1904
Reviewed-by: Minux Ma <minux@golang.org>
Also: checkout sub-repos from Mercurial manually
instead of using "go get". (for the 1.4 release)
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/190720043
Turns out it *is* needed because the cmd/link tests expect to find their own files.
««« original CL description
misc/nacl: exclude cmd/link from the test zip.
It does not appear to be necessary, and cmd/link does not appear in release branches.
LGTM=rsc
R=adg, rsc
CC=golang-codereviews
https://golang.org/cl/176900044
»»»
TBR=rsc
R=adg, rsc
CC=golang-codereviews
https://golang.org/cl/175870045
It does not appear to be necessary, and cmd/link does not appear in release branches.
LGTM=rsc
R=adg, rsc
CC=golang-codereviews
https://golang.org/cl/176900044
(The assertion depends on a per-package gensym counter whose
value varies based on what else is in the package.)
LGTM=khr
R=khr, rsc
CC=golang-codereviews
https://golang.org/cl/169930043
On heavily loaded build servers, a 5 second timeout is too aggressive,
which causes this test to fail spuriously.
LGTM=iant
R=iant
CC=golang-codereviews, sqweek
https://golang.org/cl/170850043
ARPHELPLINK yields 404; update the URL.
While here, also prefix the ARPREADME and ARPURLINFOABOUT URL's with the HTTP scheme to make 'em clickable links in the Add or Remove Programs listing.
LGTM=adg
R=golang-codereviews
CC=adg, golang-codereviews
https://golang.org/cl/154580045
Set correct version number at Windows installer based on
Go's Mercurial tag.
Name | Version
------------------------------------------------
Go Programming Language amd64 go1.3.3 | 1.3.3
Go Programming Language amd64 go1.2rc3 | 1.2
Go Programming Language amd64 go1.2beta1 | 1.2
Fixes#8239.
LGTM=adg
R=adg, c.emil.hessman, alex.brainman
CC=golang-codereviews
https://golang.org/cl/160950044
Our current pe object reader assumes that every symbol starting with
'.' is section. It appeared to be true, until now gcc 4.9.1 generates
some symbols with '.' at the front. Change that logic to check other
symbol fields in addition to checking for '.'. I am not an expert
here, but it seems reasonable to me.
Added test, but it is only good, if tested with gcc 4.9.1. Otherwise
the test PASSes regardless.
Fixes#8811.
Fixes#8856.
LGTM=jfrederich, iant, stephen.gutekanst
R=golang-codereviews, jfrederich, stephen.gutekanst, iant
CC=alex.brainman, golang-codereviews
https://golang.org/cl/152410043
The test doesn't work with GOTRACEBACK != 2.
Diagnose that failure mode.
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, r
https://golang.org/cl/152970043
+ static test
NB: there's a preexisting (dynamic) failure of test issue7978.go.
LGTM=iant
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/144650045
During a cgo call, the stack can be copied. This copy invalidates
the pointer that cgo has into the return value area. To fix this
problem, pass the address of the location containing the stack
top value (which is in the G struct). For cgo functions which
return values, read the stktop before and after the cgo call to
compute the adjustment necessary to write the return value.
Fixes#8771
LGTM=iant, rsc
R=iant, rsc, khr
CC=golang-codereviews
https://golang.org/cl/144130043
Those C files would have been compiled with 6c.
It's close to impossible to use C correctly anymore,
and the C compilers are going away eventually.
Make them unavailable now.
go1.4.txt change in CL 145890046
LGTM=iant
R=iant
CC=golang-codereviews, r
https://golang.org/cl/149720043
Normally, the caller to runtime.entersyscall() must not return before
calling runtime.exitsyscall(), lest g->syscallsp become a dangling
pointer. runtime.cgocallbackg() violates this constraint. To work around
this, save g->syscallsp and g->syscallpc around cgo->Go callbacks, then
restore them after calling runtime.entersyscall(), which restores the
syscall stack frame pointer saved by cgocall. This allows the GC to
correctly trace a goroutine that is currently returning from a
Go->cgo->Go chain.
This also adds a check to proc.c that panics if g->syscallsp is clearly
invalid. It is not 100% foolproof, as it will not catch a case where the
stack was popped then pushed back beyond g->syscallsp, but it does catch
the present cgo issue and makes existing tests fail without the bugfix.
Fixes#7978.
LGTM=dvyukov, rsc
R=golang-codereviews, dvyukov, minux, bradfitz, iant, gobot, rsc
CC=golang-codereviews, rsc
https://golang.org/cl/131910043
Now it's two allocations. I don't see much downside to that,
since the two pieces were in different cache lines anyway.
Rename 'conservative' to 'cgo_conservative_type' and make
clear that _cgo_allocate is the only allowed user.
This depends on CL 141490043, which removes the other
use of conservative (in defer).
LGTM=dvyukov, iant
R=khr, dvyukov, iant
CC=golang-codereviews, rlh
https://golang.org/cl/139610043
This CL adjusts code referring to src/pkg to refer to src.
Immediately after submitting this CL, I will submit
a change doing 'hg mv src/pkg/* src'.
That change will be too large to review with Rietveld
but will contain only the 'hg mv'.
This CL will break the build.
The followup 'hg mv' will fix it.
For more about the move, see golang.org/s/go14nopkg.
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/134570043
testSchedLocal* tests need to malloc now because their
stack frames are too big to fit on the G0 stack.
LGTM=iant
R=golang-codereviews, iant, khr
CC=golang-codereviews
https://golang.org/cl/133660043
newstackcall creates a new stack segment, and we want to
be able to throw away all that code.
LGTM=khr
R=khr, iant
CC=dvyukov, golang-codereviews, r
https://golang.org/cl/139270043
If there is doubt about passing arguments correctly
(as there is in this test), there should be doubt about
getting the results back intact too. Using 0 and 1
(especially 0 for success) makes it easy to get a PASS
accidentally when the return value is not actually
being propagated. Use less common values.
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews, r
https://golang.org/cl/141110043
Instead of making asmcgocall call asmcgocall_errno,
make both load args into registers and call a shared
assembly function.
On amd64, this costs 1 word in the asmcgocall_errno path
but saves 3 words in the asmcgocall path, and the latter
is what happens on critical nosplit paths on Windows.
On arm, this fixes build failures: asmcgocall was writing
the arguments for asmcgocall_errno into the wrong
place on the stack. Passing them in registers avoids the
decision entirely.
On 386, this isn't really needed, since the nosplit paths
have twice as many words to work with, but do it for consistency.
Update #8635
Fixes arm build (except GOARM=5).
TBR=iant
CC=golang-codereviews
https://golang.org/cl/134390043
The [568]c compilers no longer support packed structs, so
using them with -cdefs no longer works. Just commenting out
the test, rather than removing it, in case this needs to be
handled. It may be that -cdefs can go away entirely in the
future, in which case so can this directory.
LGTM=mdempsky
R=rsc, mdempsky
CC=golang-codereviews
https://golang.org/cl/136030043
Clang 3.2 and older (as shipped with OS X Mountain Lion and older)
outputs ambiguous DWARF debug info that makes it impossible for us to
reconstruct accurate type information as required for this test.
Fixes#8611.
LGTM=rsc
R=r, rsc, minux
CC=golang-codereviews
https://golang.org/cl/135990043
Add gofmt.go and gofmt_test.go as they are part of the test data set.
See CL 130440043.
LGTM=dvyukov
R=golang-codereviews, dvyukov
CC=golang-codereviews
https://golang.org/cl/132820044
E.g., here's the new "go build" output:
$ go build misc/cgo/errors/issue8442.go
# command-line-arguments
could not determine kind of name for C.issue8442foo
gcc errors for preamble:
misc/cgo/errors/issue8442.go:11:19: error: unknown type name 'UNDEF'
Fixes#8442.
LGTM=iant
R=iant, alex.brainman
CC=golang-codereviews
https://golang.org/cl/129160043
In cgo, now that recursive calls to typeConv.Type() always work,
we can more robustly calculate the array sizes based on the size
of our element type.
Also, in debug/dwarf, the decision to call zeroType is made
based on a type's usage within a particular struct, but dwarf.Type
values are cached in typeCache, so the modification might affect
uses of the type in other structs. Current compilers don't appear
to share DWARF type entries for "[]foo" and "[0]foo", but they also
don't consistently share type entries in other cases. Arguably
modifying the types is an improvement in some cases, but varying
translated types according to compiler whims seems like a bad idea.
Lastly, also in debug/dwarf, zeroType only needs to rewrite the
top-level dimension, and only if the rest of the array size is
non-zero.
Fixes#8428.
LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/127980043
Some systems, like Ubuntu, pass --build-id when linking. The
effect is to put a note in the output file. This is not
useful when generating an object file with the -r option, as
it eventually causes multiple build ID notes in the final
executable, all but one of which are for tiny portions of the
file and are therefore useless.
Disable that by passing an explicit --build-id=none when
linking with -r on systems that might do this.
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/119460043
Instead of immediately completing pointer type mappings, add them to
a queue to allow them to be completed later. This fixes issues caused
by Type() returning arbitrary in-progress type mappings.
Fixes#8368.
Fixes#8441.
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/122850043
Instead of including <sys/types.h> to get size_t, instead include
the ISO C standard <stddef.h> header, which defines fewer additional
types at risk of colliding with the user code. In particular, this
prevents collisions between <sys/types.h>'s userspace definitions with
the kernel definitions needed by defs_linux.go.
Also, -cdefs mode uses #pragma pack, so we can keep misaligned fields.
Fixes#8477.
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/120610043
Update #6677
When a struct contains an anonymous union, use the type and
name of the first field in the union.
This should make the glibc <sys/resource.h> file work; in that
file struct rusage has fields like
__extension__ union
{
long int ru_maxrss;
__syscall_slong_t __ru_maxrss_word;
};
in which the field that matters is ru_maxrss and
__ru_maxrss_word just exists to advance to the next field on
systems where the kernel uses long long fields but userspace
expects long fields.
LGTM=mikioh.mikioh
R=golang-codereviews, mikioh.mikioh
CC=golang-codereviews
https://golang.org/cl/106260044
Breaks build for FreeBSD. Probably clang related?
««« original CL description
cmd/cgo: disable inappropriate warnings when the gcc struct is empty
package main
//#cgo CFLAGS: -Wall
//void test() {}
import "C"
func main() {
C.test()
}
This code will cause gcc issuing warnings about unused variable.
This commit use offset of the second return value of
Packages.structType to detect whether the gcc struct is empty,
and if it's directly invoke the C function instead of writing an
unused code.
LGTM=dave, minux
R=golang-codereviews, iant, minux, dave
CC=golang-codereviews
https://golang.org/cl/109640045
»»»
TBR=dfc
R=dave
CC=golang-codereviews
https://golang.org/cl/114990044
package main
//#cgo CFLAGS: -Wall
//void test() {}
import "C"
func main() {
C.test()
}
This code will cause gcc issuing warnings about unused variable.
This commit use offset of the second return value of
Packages.structType to detect whether the gcc struct is empty,
and if it's directly invoke the C function instead of writing an
unused code.
LGTM=dave, minux
R=golang-codereviews, iant, minux, dave
CC=golang-codereviews
https://golang.org/cl/109640045
On amd64, the real time is reduced from 176.76s to 140.26s.
On ARM, the real time is reduced from 921.61s to 726.30s.
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/101580043
We are not the right people to support editor plugins, and the profusion
of editors in this CL demonstrates the unreality of pretending to do so.
People are free to create and advertise their own repos with support.
For discussion: https://groups.google.com/forum/#!topic/golang-dev/SA7fD470FxU
LGTM=rminnich, kamil.kisiel, gri, rsc, dave, josharian, ruiu
R=golang-codereviews, rminnich, kamil.kisiel, gri, rsc, dominik.honnef, dave, josharian, ruiu, ajstarks
CC=golang-codereviews
https://golang.org/cl/105470043
Using flet to replace kill-region with delete-region was a hack,
flet is now (GNU Emacs 24.3) deprecated and at least two people
have reported an issue where using go--delete-whole-line would
permanently break their kill ring. While that issue is probably
caused by faulty third party code (possibly prelude), it's easier
to write a clean implementation than to tweak the hack.
LGTM=ruiu, adonovan
R=adonovan, ruiu
CC=adg, golang-codereviews
https://golang.org/cl/106010043
If we see a typedef to an anonymous struct more than once,
presumably in two different Go files that import "C", use the
same Go type name.
Fixes#8133.
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/102080043
This program has barely been touched since it was first committed,
and in its current state it opens a code execution vector similar
to the one that was recently fixed in go.tools/playground/socket.
Rather than try to make it secure, remove it.
LGTM=minux, rsc
R=rsc, minux
CC=golang-codereviews
https://golang.org/cl/102030047
For incomplete struct S, C.T and C.struct_S were interchangeable in Go 1.2
and earlier, because all incomplete types were interchangeable
(even C.struct_S1 and C.struct_S2).
CL 76450043, which fixed issue 7409, made different incomplete types
different from Go's point of view, so that they were no longer completely
interchangeable.
However, imprecision about C.T and C.struct_S - really the same
underlying C type - is the one behavior enabled by the bug that
is most likely to be depended on by existing cgo code.
Explicitly allow it, to keep that code working.
Fixes#7786.
LGTM=iant, r
R=golang-codereviews, iant, r
CC=golang-codereviews
https://golang.org/cl/98580046
Add nacl.bash, the NaCl version of all.bash.
It's a separate script because it builds a variant of package syscall
with a large zip file embedded in it, containing all the input files
needed for tests.
Disable various tests new since the last round, mostly the ones using os/exec.
Fixes#7945.
LGTM=dave
R=golang-codereviews, remyoudompheng, dave, bradfitz
CC=golang-codereviews
https://golang.org/cl/100590044
If you write:
var x = 3
then the compiler arranges for x to be initialized in the linker
with an actual 3 from the data segment, rather than putting
x in the bss and emitting init-time "x = 3" assignment code.
If you write:
var y = x
var x = 3
then the compiler is clever and treats this the same as if
the code said 'y = 3': they both end up in the data segment
with no init-time assignments.
If you write
var y = x
var x int
then the compiler was treating this the same as if the
code said 'x = 0', making both x and y zero and avoiding
any init-time assignment.
This copying optimization to avoid init-time assignment of y
is incorrect if 'var x int' doesn't mean 'x = 0' but instead means
'x is initialized in C or assembly code'. The program ends up
with 'y = 0' instead of 'y = the value specified for x in that other code'.
Disable the propagation if there is no initializer for x.
This comes up in some uses of cgo, because cgo generates
Go globals that are initialized in accompanying C files.
Fixes#7665.
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/93200044
The vi bundled with OS X has a weird bug in that if you turn off
filetype in .vimrc when it's not turned on, even a clean exit of
vi will return 1 which breaks almost everything.
While we're at it, add hint to change $GOROOT to its actual value
in .vimrc.
Fixes#7865.
LGTM=robert.hencke, dsymonds
R=golang-codereviews, robert.hencke, gobot, dsymonds
CC=golang-codereviews
https://golang.org/cl/96800046
For the gc compiler the Go function Issue7695 is defined in
runtime.c, but there is no way to do that for gccgo, because
there is no way to get the correct pkgpath. The test is not
important for gccgo in any case.
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/93870044
Cgo writes C function declarations pretending every arg is a pointer.
If the C function is deferred, it does not inhibit stack copying on split.
The stack copying code believes the C declaration, possibly misinterpreting
integers as pointers.
Probably the right fix for Go 1.3 is to make deferred C functions inhibit
stack copying.
For Go 1.4 and beyond we probably need to make cgo generate Go code
for 6g here, not C code for 6c.
Update #7695
LGTM=khr
R=khr
CC=golang-codereviews
https://golang.org/cl/83820043
go-mode on Emacs 23 wrongly recognizes a backquote in a comment or
a string as a start of a raw string literal. Below is an example
that go-mode does not work well. This patch is to fix that issue.
// `
var x = 1
// `
LGTM=dominik.honnef
R=golang-codereviews, dominik.honnef, adonovan
CC=golang-codereviews
https://golang.org/cl/84900043
People (like me!) will still try to run misc/benchcmp
and wonder where it went. Tell them.
LGTM=bradfitz
R=golang-codereviews, bradfitz, dave
CC=adg, golang-codereviews, r
https://golang.org/cl/82710043
Name of built-in function is not reserved word in Go, and you can
use it as variable name. "new" is often used as local variable, for
instance.
This patch is to apply font-lock-builtin-face only when built-in
function name is followed by '(', so that it doesn't highlight
non-function variable that happen to have the same name as built-in
function.
LGTM=dominik.honnef
R=golang-codereviews, dominik.honnef, adonovan
CC=golang-codereviews
https://golang.org/cl/79260043
cgo represents all 0-sized and unsized types internally as [0]byte. This means that pointers to incomplete types would be interchangable, even if given a name by typedef.
Fixes#7409.
LGTM=iant
R=golang-codereviews, bradfitz, iant
CC=golang-codereviews
https://golang.org/cl/76450043
Go-mode in Emacs 23 does not recognize a backslash followed
by a backquote as end of raw string literal, as it does not
support syntax-propertize-function which Go-mode uses to
remove special meaning from backslashes in ``.
This patch provides a fallback mechanism to do the same thing
using font-lock-syntactic-keywords, which is supported by
Emacs 23.
LGTM=dominik.honnef
R=golang-codereviews, dominik.honnef
CC=adonovan, golang-codereviews
https://golang.org/cl/78730048
This patch includes fixes pointed out in CL 52140043, which was
originally written by john.gosset.
LGTM=minux.ma
R=golang-codereviews, minux.ma
CC=golang-codereviews
https://golang.org/cl/80320043
If someone configures a 'textwidth' in go files, vim will by default insert
newlines into long lines as you type, which breaks syntax and doesn't really
make sense for go code. This fixes the default.
LGTM=dsymonds
R=golang-codereviews, gobot, dsymonds
CC=golang-codereviews
https://golang.org/cl/76890046
"env" is a valid go command. This patch is to make bash to autocomplete it.
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/74660045
This broke when we renamed the tool, and I missed this fix when I
fixed darwin last week.
LGTM=minux.ma, bradfitz
R=golang-codereviews, minux.ma, bradfitz
CC=golang-codereviews
https://golang.org/cl/70670043
We're about to commit some wide-sweeping changes to the go-tour and I
would rather not include them in Go 1.2.1, which is due in the next
week or so.
Also fix the makerelease tool; it has been broken since it was
renamed from bindist.
LGTM=campoy
R=campoy
CC=golang-codereviews
https://golang.org/cl/68780043
Fix build for 10.6 Darwin builders and OpenBSD builers.
LGTM=jsing
R=golang-codereviews, dave, jsing
CC=golang-codereviews
https://golang.org/cl/67710043
c-mode classically uses ff-find-other-file to toggle between headers
and implementation. For Go it seemingly makes sense to jump between
implementation and test.
While there's no enforced mapping of file names for tests, the mapping
in this CL seems to be very common at least throughout the standard
library, and ff-find-other-file fails gracefully when the mapping
doesn't apply.
LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/65750044
Better sampling of objects that are close in size to sampling rate.
See the comment for details.
LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/43830043
In external link mode the linker explicitly adds the string
constant "runtime/cgo". It adds the string constant using the
same symbol name as the compiler, but a different format. The
compiler assumes that the string data immediately follows the
string header, but the linker puts the two in different
sections. The result is bad string data when the compiler
sees "runtime/cgo" used as a string constant.
The compiler assumption is in datastring in [568]g/gobj.c.
The linker layout is in addstrdata in ld/data.c. The compiler
assumption is valid for string literals. The linker is not
creating a string literal, so its assumption is also valid.
There are a few ways to avoid this problem. This patch fixes
it by only doing the fake import of runtime/cgo if necessary,
and by only creating the string symbol if necessary.
Fixes#7234.
LGTM=dvyukov
R=golang-codereviews, dvyukov, bradfitz
CC=golang-codereviews
https://golang.org/cl/58410043
NPTL uses SIGRTMIN (signal 32) to effect thread cancellation.
Go's runtime replaces NPTL's signal handler with its own, and
ends up aborting if a C library that ends up calling
pthread_cancel is used.
This patch prevents runtime from replacing NPTL's handler.
Fixes#6997.
R=golang-codereviews, iant, dvyukov
CC=golang-codereviews
https://golang.org/cl/47540043
Require at least one space after "type" and do not fontify closing
parenthesis of type switch as a type.
R=adonovan
CC=golang-codereviews
https://golang.org/cl/37720050
Since version 6.5, npp change the Function List syntax for User Defined Languages.
We need use userDefinedLangName syntax in association tag in Notepad++ 6.5.
Fix issue 6735.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/22770043
This step makes it possible to upload the -osx10.x binaries
separately to their construction (after signing, for example).
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/28160043
- Use #' for function symbols
- Remove unused variables
- Use declare-function to shut up byte compiler
This is identical to CL 19010044 with one exception: Making sure
it doesn't break on Emacs 22.1
R=adonovan, bradfitz, shendaras
CC=golang-dev
https://golang.org/cl/20100043
Clang does not record the "size" field for pointer types,
so we must insert the size ourselves. We were already
doing this, but only for the case of pointer types.
For an array of pointer types, the setting of the size for
the nested pointer type was happening after the computation
of the size of the array type, meaning that the array type
was always computed as 0 bytes. Delay the size computation.
This bug happens on all Clang systems, not just FreeBSD.
Our test checked that cgo wrote something, not that it was correct.
FreeBSD's default clang rejects array[0] as a C struct field,
so it noticed the incorrect sizes. But the sizes were incorrect
everywhere.
Update testcdefs to check the output has the right semantics.
Fixes#6292.
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/22840043
bradfitz reports:
> It breaks go-mode on GNU Emacs 22.1.1 as ships with OS X 10.8.6.
««« original CL description
misc/emacs: various cleanups
- Use #' for function symbols
- Remove unused variables
- Use declare-function to shut up byte compiler
R=adonovan
CC=golang-dev
https://golang.org/cl/19010044
»»»
R=bradfitz
CC=golang-dev
https://golang.org/cl/19640043
- Use #' for function symbols
- Remove unused variables
- Use declare-function to shut up byte compiler
R=adonovan
CC=golang-dev
https://golang.org/cl/19010044
The newest version of godef supports jumping to a package's source
directory if point is on an import statement.
R=adonovan
CC=golang-dev
https://golang.org/cl/18230043
Prevent linkcheck from following redirects that lead beyond the outside
the root URL.
Return a non-zero exit code when there are problems.
Some minor refactoring for clarity.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/14425049
The old approach to determining whether "name" was a type, constant,
or expression was to compile the C program
name;
and scan the errors and warnings generated by the compiler.
This requires looking for specific substrings in the errors and warnings,
which ties the implementation to specific compiler versions.
As compilers change their errors or drop warnings, cgo breaks.
This happens slowly but it does happen.
Clang in particular (now required on OS X) has a significant churn rate.
The new approach compiles a slightly more complex program
that is either valid C or not valid C depending on what kind of
thing "name" is. It uses only the presence or absence of an error
message on a particular line, not the error text itself. The program is:
// error if and only if name is undeclared
void f1(void) { typeof(name) *x; }
// error if and only if name is not a type
void f2(void) { name *x; }
// error if and only if name is not an integer constant
void f3(void) { enum { x = (name)*1 }; }
I had not been planning to do this until Go 1.3, because it is a
non-trivial change, but it fixes a real Xcode 5 problem in Go 1.2,
and the new code is easier to understand than the old code.
It should be significantly more robust.
Fixes#6596.
Fixes#6612.
R=golang-dev, r, james, iant
CC=golang-dev
https://golang.org/cl/15070043
Ensure that clang always exits with a non-zero status by
giving it something that it always warns about (the statement "1;").
Fixes#6128.
R=golang-dev, iant, minux.ma
CC=golang-dev
https://golang.org/cl/14702043
Also add the action's object directory to the list of
directories we use to find SWIG shared libraries.
Fixes#6521.
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/14369043
Fixes a bug in cgo on OS X using clang.
See golang.org/issue/6472 for details.
Fixes#6472.
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/14575043
The Go compiler emits extra information for this case:
imported and not used: "sandbox/foo_bar" as bar
R=adonovan
CC=golang-dev
https://golang.org/cl/14111043
so that we don't need worry about specifying the required
libc version (note: as cmd/go will still be dynamically
linked to libc, we still need to perform the build on OSes
with an old enough libc. But as cmd/go doesn't rely on many
libc symbols, the situation should be significantly better).
Fixes#3564.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/14261043
notepadplus can only support some normal golang's hex and imaginary numbers.
it can't detect some special number, eg. 1./1.e/1.i/1+0.1i (omit "0" in ".0").
R=golang-dev, gvdschoot
CC=ajstarks, golang-dev
https://golang.org/cl/13401047
This will allow us to cut binaries with names like:
go1.2rc1.darwin-amd64-osx10.6.pkg
go1.2rc1.darwin-amd64-osx10.8.pkg
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/13629045
Because we can, and because it otherwise might crash
the program if we think we're out of memory.
Fixes#6390.
R=golang-dev, iant, minux.ma
CC=golang-dev
https://golang.org/cl/13345048
This is not quite what that issue reports,
because this does not involve a DLL.
But I wanted to make sure this much was working.
Update #4339
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/13653043
Use either LWP::UserAgent or curl to make HTTP requests so it
works on Windows (most Perl distros include LWP::UserAgent),
and also on OS X (whose Perl at least sometimes doesn't
include LWP::UserAgent).
Fixes#6273
R=golang-dev, alex.brainman, cldorian
CC=golang-dev
https://golang.org/cl/13330044
Removed posix assumptions in temporary file generation
Removed curl dependence
Changed opening of svg file
These must now work including symbol resolution.
[1] go tool pprof <prog_name> http://.../debug/pprof/profile
[2] go tool pprof http://.../debug/pprof/profile
Fixes 6177.
R=golang-dev, alex.brainman, bradfitz, kamil.kisiel
CC=golang-dev
https://golang.org/cl/13085043
Some users have multiple Go development trees and invoke the
'go' tool via a wrapper that sets GOROOT and GOPATH based on
the current directory. Such users should customize go-command
to point to the wrapper script.
R=dominik.honnef
CC=golang-dev
https://golang.org/cl/13233043
If xcode-select is available, use it to determine the path to the
DVTFoundation.xcplugindata file.
Fixes#5997.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/12741047
When the coverage report file is older than the file we're
showing the coverage report for, then we show a simple message
to state this fact.
R=adonovan, dominik.honnef, bradfitz
CC=golang-dev
https://golang.org/cl/12919044
When identifying structs or interfaces we really want to know
their makeup, not just their name.
R=adonovan
CC=golang-dev
https://golang.org/cl/13042043
Jumps to the same file will use the original buffer, not the
coverage buffer. Making it work for the coverage buffer isn't
worth the trouble, especially because it would break as soon as
you jump to a different file and back.
Use error instead of message so it actually terminates
R=adonovan
CC=golang-dev
https://golang.org/cl/13041043
* Add a new kind of Name, "fpvar" which stands for function pointer variable
* When walking the AST, find functions used as expressions and create a new Name object for them
* Track functions which are only used in expr contexts, and avoid generating bridge code for them
R=golang-dev, minux.ma, fullung, rsc, iant
CC=golang-dev
https://golang.org/cl/9835047
Use the same algorithm that go tool cover uses when producing HTML
output to render coverage intensity.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/12712043
Renders code coverage as an overlay, replicating the look of the
HTML that go tool cover produces.
Also some cleanups.
R=adonovan, bradfitz
CC=golang-dev
https://golang.org/cl/12684043
The receiver name is optional. when Method's receiver name messing,
the functionList regex can't match the Method,
e.g. `func (*T) ProtoMessage() {}`.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/12530044
In prep for Robert's forthcoming cmd/api rewrite which
depends on the go.tools subrepo, we'll need to be more
careful about how and when we run cmd/api.
Rather than implement this policy in both run.bash and
run.bat, this change moves the policy and mechanism into
cmd/api/run.go, which will then evolve.
The plan is in a TODO in run.go.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/12482044
Basically a partial rollback of 12053043 until I can
figure out what is really going on.
Fixes bug 6051.
R=golang-dev
CC=golang-dev
https://golang.org/cl/12496043
cmd/api is a tool to prevent the Go developers from breaking
the Go 1 API promise. It has no utility to end users and
doesn't run on arbitrary packages (it's always been full of
hacks for its bespoke type checker to work on the standard
library)
Robert's in-progress rewrite depends on the go.tools repo for
go/types, so we won't be able to ship this tool later
anyway. Just remove it from binary distributions.
A future change to run.bash can conditionally build & run
cmd/api, perhaps automatically fetching go/types if
necessary. I assume people don't want to vendor go/types into
a private gopath just for cmd/api.
I will need help with run.bat.
R=golang-dev, adg, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/12316043
Split stack checks (morestack) corrupt g->sched,
but g->sched must be preserved consistent for GC/traceback.
The change implements runtime.notetsleepg function,
which does entersyscall/exitsyscall and is carefully arranged
to not call any split functions in between.
R=rsc
CC=golang-dev
https://golang.org/cl/11575044
This will mean that sub-repositories won't get built against the
release branch. They are often not compatible because the subrepos
often run ahead of the current release (e.g. go.tools is using
new additions to go/ast, and go.net is using new things in syscall)
so there's little point in checking them against cherrypick commits
when they'll be tested against those commits on tip anyway.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/12001043
Add missing single quotation and backslash marks.
Change dot and underscore character keyword type.
"_" is a predeclared identifier, not a operator.
"." is a selector, x.f should be one identifier highlight.
So the fix is to change it.
Fixes#5775.
Fixes#5788.
Fixes#5798.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/10480044
Don't require a full-scale callback for calls to the special
prologue functions.
Always use a simple wrapper function for C functions, so that
we can handle static functions defined in the import "C"
comment.
Disable a test that relies on gc-specific function names.
Fixes#5905.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/11406047
The problem is that the cdecl() function in cmd/cgo/godefs.go isn't
properly translating the Go array type to a C array type when an
asterisk follows the [] in the array type declaration (it is perfectly
legal to put the asterisk on either side of the [] in go syntax,
depending on how you set up your pointers).
That said, the cdefs tool is only designed to translate from Go types
generated using the cgo *godefs* tool -- where the godefs tool is
designed to translate gcc-style C types into Go types. In essence, the
cdefs tool translates from gcc-style C types to Go types (via the godefs
tool), then back to kenc-style C types. Because of this, cdefs does not
need to know how to translate arbitraty Go types into C, just the ones
produced by godefs.
The problem is that during this translation process, the logic is
slightly wrong when going from (e.g.):
char *array[10];
to:
array [10]*int8;
back to:
int8 *array[10];
In the current implementation of cdecl(), the translation from the Go
type declaration back to the kenc-style declaration looks for Go
types of the form:
name *[]type;
rather than the actual generated Go type declaration of:
name []*type;
Both are valid Go syntax, with slightly different semantics, but the
latter is the only one that can ever be generated by the godefs tools.
(The semantics of the former are not directly expressible in a
single C statement -- you would have to have to first typedef the array
type, then declare a pointer to that typedef'd type in a separate
statement).
This commit changes the logic of cdecl() to look properly for, and
translate, Go type declarations of the form:
name []*type;
Additionally, the original implementation only allowed for a single
asterisk and a single sized aray (i.e. only a single level of pointer
indirection, and only one set of []) on the type, whereas the patched
version allows for an arbitrary number of both.
Tests are included in misc/cgo/testcdefs and the all.bash script has been
updated to account for these.
R=golang-dev, bradfitz, dave, iant
CC=golang-dev
https://golang.org/cl/11377043
This will behave like similar "*-other-window" functions in Emacs.
Default key bind is C-x 4 C-c C-j – while awkward, it follows both
the convention for other-window functions and the convention for
not using user- or emacs-reserved keys.
R=golang-dev, adonovan
CC=golang-dev
https://golang.org/cl/10707045
The postinstall script causes the installation to fail because the last
step that copies files for Xcode is broken. Two details can cause the
command to fail:
1. The XCODE_MISC_DIR value has a space. Without quotes in the cp
command, cp will just complain that this is an invalid syntax.
2. The source of the cp is a directory with two subdirectories.
We actually want the files for either Xcode 3 or Xcode 4 to be copied.
Using xcodebuild -version, we check for the Xcode version and
select which of xcode/3/* or xcode/4/* should be the source
of the copy.
Fixes#5874.
R=golang-dev, minux.ma, adg
CC=golang-dev
https://golang.org/cl/10893044
The static func named thread in issue5337.go's C snippet
conflicts with the static func named thread in issue3350.go's C snippet.
I don't know why (they're both static) but I also don't care,
because -linkmode=internal only needs to be able to handle
the cgo in the standard library, and it does.
Change the test to avoid this problem.
Fixes build (after run.bash is fixed to detect the breakage).
R=minux.ma
TBR=minux.ma
CC=golang-dev
https://golang.org/cl/11201043
when the program is not main package, `go run x.go` can't return the
link error message. so use `go run x.go` in instead `go build x.go`.
Fixes#5865.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/11165043
This change adds a basic compiler plugin for Go. The plugin
integrates "go build" with Vim's ":make" command and the
quickfix list.
Fixes#5751.
R=golang-dev, dsymonds, niklas.schnelle, 0xjnml
CC=golang-dev
https://golang.org/cl/10466043
race is more important than arch (moreover race implies x64)
don't know how to test it
R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/10484046
In general the description should describe what is added or fixed,
not how it was done (the code does this), but in this case the cause
was delete was missing, so the fix is to add it.
Fixes issue 5765.
R=golang-dev, iant, r
CC=golang-dev
https://golang.org/cl/10496043
In general the description should describe what is added or fixed,
not how it was done (the code does this), but in this
case the cause were "/ /= ;" was missing,
so the fix is to add it.
Fixes#5761.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/10479043
In general the description should describe what is added or fixed, not how it was done (the code does this), but in this case the cause was delete was missing, so the fix is to add it.
Fixes#5759.
R=adg
CC=dave, dominik.honnef, gobot, golang-dev
https://golang.org/cl/10476043
This basic Vim ftplugin sets the 'comments' and 'commentstring'
settings to sensible values. Future filetype settings for Go
would go in the same file.
The ftplugin was added as misc/vim/ftplugin/go/go.vim, this way
the installation instructions in readme.txt remain valid.
Fixes#5715.
R=dsymonds
CC=gobot, golang-dev
https://golang.org/cl/10323043
Default behavior is the same as before, but now a user may selectively disable some commands.
Also: deleted the mappings for import.vim.
Tested: by trying the commands for fmt, import and godoc in succession to make sure they still work. Also, ran test.sh in ftplugin/go.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/10124043
Add gostartcall and gostartcallfn.
The old gogocall = gostartcall + gogo.
The old gogocallfn = gostartcallfn + gogo.
R=dvyukov, minux.ma
CC=golang-dev
https://golang.org/cl/10036044
These functions were introduced by revision 139919984600
and should not show up on profiles for consistency.
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/10003043
We require $objtype in make.rc and rc needs $path for finding commands.
Also include $cputype which we may use in the future.
R=golang-dev, minux.ma, r
CC=golang-dev
https://golang.org/cl/9905043
Operations like gofmt and go-remove-unused-imports delete entire
lines of text. Previously this put them on the kill-ring,
negatively affecting user experience.
R=adonovan
CC=gobot, golang-dev
https://golang.org/cl/9605043
This fixes fontification, navigation and indentation for methods
of the form `func (Foo) Bar...`
R=adonovan
CC=gobot, golang-dev
https://golang.org/cl/8951043
cmp(1) on FreeBSD requires two file arguments. grep -P on Linux (at least
Ubuntu 12.04) is described in the man page as "This is highly
experimental" and doesn't seem to work. On FreeBSD the man page states
"This option is not supported in FreeBSD." Needed this to work while
debugging some funky behavior of 'Import' in my local vim setup.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/7675043
runtime.setmg() calls another function (cgo_save_gm), so it must save
LR onto stack.
Re-enabled TestCthread test in misc/cgo/test.
Fixes#4863.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/9019043
https://golang.org/cl/8134043 disabled cgo when cross compiling, this means builders which compile for both amd64 and 386 will be compiling the latter with cgo disabled.
This proposal modifies the builder to mirror the dist tool by always doing a native build.
Tested on my darwin/amd64 builder and confirmed the result when building darwin/386 is a native 386 build with cgo enabled.
R=bradfitz, dsymonds, r, adg
CC=golang-dev
https://golang.org/cl/8842044
This change removes processing of #cgo directives from cmd/cgo,
pushing the onus back on cmd/go to pass all necessary flags.
Fixes#5224. See comments for rationale.
R=golang-dev, iant, r
CC=golang-dev
https://golang.org/cl/8610044
Some variables declared in C could end up as undefined symbols
in the final binary and have null address.
Fixes#5114.
Fixes#5227.
R=golang-dev, iant, ajstarks, dave, r
CC=golang-dev
https://golang.org/cl/8602044
If the build key contains -race, the builder will invoke to the race.{bat,bash} build command. This allows {darwin,linux,windows}-amd64 builders to do race and non race builds in sequence.
R=adg, dvyukov, fullung
CC=golang-dev
https://golang.org/cl/8266046
Some packages, like popwin.el, change display behaviour based on
the buffer's mode, so we should enable compilation-mode before
displaying the buffer.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/8155043
This CL was written by rsc. I just tweaked 8l.
This CL adds TLS relocation to the ELF .o file we write during external linking,
so that the host linker (gcc) can decide the final location of m and g.
Similar relocations are not necessary on OS X because we use an alternate
program start-time mechanism to acquire thread-local storage.
Similar relocations are not necessary on ARM or Plan 9 or Windows
because external linking mode is not yet supported on those systems.
On almost all ELF systems, the references we use are like %fs:-0x4 or %gs:-0x4,
which we write in 6a/8a as -0x4(FS) or -0x4(GS). On Linux/ELF, however,
Xen's lack of support for this mode forced us long ago to use a two-instruction
sequence: first we load %gs:0x0 into a register r, and then we use -0x4(r).
(The ELF program loader arranges that %gs:0x0 contains a regular pointer to
that same memory location.) In order to relocate those -0x4(r) references,
the linker must know where they are. This CL adds the equivalent notation
-0x4(r)(GS*1) for this purpose: it assembles to the same encoding as -0x4(r)
but the (GS*1) indicates to the linker that this is one of those thread-local
references that needs relocation.
Thanks to Elias Naur for reminding me about this missing piece and
also for writing the test.
R=r
CC=golang-dev
https://golang.org/cl/7891047
The arm gentraceback mishandled frame linkage values pointing
to the assembly return function. This function is special as
its frame size is zero and it contains only one instruction.
These conditions would preserve the frame pointer and result
in an off by one error when unwinding the caller.
Fixes#5124
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/8023043
The ARM implementation of runtime.cgocallback_gofunc diverged
from the calling convention by leaving a word of garbage at
the top of the stack and storing the return PC above the
locals. This change stores the return PC at the top of the
stack and removes the save area above the locals.
Update #5124
This CL fixes first part of the ARM issues and added the unwind test.
R=golang-dev, bradfitz, minux.ma, cshapiro, rsc
CC=golang-dev
https://golang.org/cl/7728045
godef[1][2] is a third party tool for printing information about
expressions, especially the location of their definition. This can be
used to implement a "jump to definition" function. Unlike
cross-language solutions like ctags, godef does not require an index,
operates on the Go AST instead of symbols and works across packages,
including the standard library.
This patch implements two new public functions: godef-describe (C-c
C-d) and godef-jump (C-d C-j). godef-describe describes the expression
at point, printing its type, and godef-jump jumps to its definition.
[1]: https://code.google.com/p/rog-go/source/browse/exp/cmd/godef/
[2]: go get code.google.com/p/rog-go/exp/cmd/godef
R=adonovan, cw, patrick.allen.higgins, sameer
CC=golang-dev
https://golang.org/cl/7781043
The files could use some attention on the
Windows side but better to wait until after
the upcoming release.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7621044
Correctly indent the body of functions that have been declared
over multiple lines. See http://play.golang.org/p/MHMwNDbFyf for
an example.
Previously, the body of the function would be indented as deep as
the continuation line of the function declaration. Now it gets
indented as deep as the func keyword.
R=adonovan, cw, patrick.allen.higgins
CC=golang-dev
https://golang.org/cl/7628043
The copy of c++filt shipped on OS X is six years old,
and in our case it does far more mangling than it
does demangling. People on non-OS X systems will
have a working nm --demangle, so this won't affect them.
$ sw_vers
ProductName: Mac OS X
ProductVersion: 10.8.2
BuildVersion: 12C2034
$ c++filt --version
GNU c++filt 070207 20070207
Copyright 2005 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License. This program has absolutely no warranty.
$
$ go tool nm -n revcomp | grep quoteWith
4f560 T strconv.quoteWith
$ go tool nm -n revcomp | grep quoteWith | c++filt
f560 T strconv.quoteWith
$
$ nm -n revcomp | grep quoteWith
000000000004f560 t _strconv.quoteWith
$ nm -n revcomp | grep quoteWith | c++filt
000000000004f560 unsigned short _strconv.quoteWith
$
Fixes#4818.
R=golang-dev, r, bradfitz
CC=golang-dev
https://golang.org/cl/7729043
Instead of relying on gofmt's diff output (which is a unified
diff), we manually invoke diff -n and produce an RCS format diff,
which can easily be parsed in Emacs, with the go--apply-rcs-patch
function.
This fixes undocumented issues with the old implementation such as
skipping over hunks of changes, and it fixes the documented issue
of not being able to handle file names that include whitespace.
It can also apply the patch on a buffer that has no file name
attached at all.
Last but not least, it greatly simplifies the gofmt function
itself.
Fixes#4766.
Fixes#4475.
R=adonovan, cw, patrick.allen.higgins, sameer
CC=golang-dev
https://golang.org/cl/7516046
This CL adds compatibility for GNU Emacs 23 (fixing fontification
issues) and XEmacs >=21.5.32 (fixing a lot of issues). Earlier
versions of XEmacs will not be supported because they do not
support POSIX character classes. Because of that, we also make use
of a lot of functions that were added in 21.5.32.
A known and currently unfixable issue with XEmacs is that go-mode
will not always fontify identifiers that use unicode correctly.
All changes for XEmacs are annotated in the diff.
Note: go--position-bytes is not currently used anywhere, but will
be in a future CL.
Fixes#4927.
R=golang-dev, adonovan, cw, patrick.allen.higgins, sameer
CC=golang-dev
https://golang.org/cl/7456051
The installer package will now detect a previous installation and warn the user
that the previous installation will be deleted. If the user continues, the
installer will delete the previous installation and install the package as
usual.
Fixes#4293.
R=adg
CC=golang-dev
https://golang.org/cl/7427044
* allow commit watcher to be disabled, useful for small slow builders who will never be the first to notice a commit.
* builders always update their local master working copy before cloning a specific revision.
* refactor hg repo operations into a new type, Repo.
R=adg, shanemhansen, luitvd
CC=golang-dev
https://golang.org/cl/7326053
Mimic the Emacs convention of presenting read-only files meant
for browsing using view-mode, rather than Fundamental mode
which mistakenly allows editing of the "godoc" content.
Fixes#4322.
R=golang-dev, bradfitz, sameer
CC=golang-dev
https://golang.org/cl/7231055
Also:
- faster code for example extraction
- simplify handling of command documentation:
all "main" packages are treated as commands
- various minor cleanups along the way
For commands written in Go, any doc.go file containing
documentation must now be part of package main (rather
then package documentation), otherwise the documentation
won't show up in godoc (it will still build, though).
For commands written in C, documentation may still be
in doc.go files defining package documentation, but the
recommended way is to explicitly ignore those files with
a +build ignore constraint to define package main.
Fixes#4806.
R=adg, rsc, dave, bradfitz
CC=golang-dev
https://golang.org/cl/7333046
This works with at least one version of clang
that existed at one moment in time.
No guarantees about clangs past or future.
To try:
CC=clang all.bash
It does not work with the Xcode clang,
because that clang fails at printing a useful answer
to:
clang -print-libgcc-file-name
The clang that works prints a full path name for
that command, not just "libgcc.a".
Fixes#4713.
R=iant, minux.ma
CC=golang-dev
https://golang.org/cl/7323068
This is part one of two changes intended to make it easier to debug builder failures.
runOutput allows us to control the io.Writer passed to a subcommand. The intention is to add additional debugging information before and after the build which will then be capture and sent to the dashboard.
In this proposal, the only additional information is the build status. See http://build.golang.org/log/e7b5bf435b4de1913fc61781b3295fb3f03aeb6e
R=adg
CC=golang-dev
https://golang.org/cl/7303090
The dashboard is currently failing to store results of new builds for some keys, notable the go.codereview sub repository. This is causing the builders to mark the entire triggering commit as failed. With the help of David Symonds we think it is because the results value has breached the 1mb datastore limit on AppEngine.
R=dsymonds, adg
CC=golang-dev
https://golang.org/cl/6858094
* Separate internal and external LockOSThread, for cgo safety.
* Show goroutine that made faulting cgo call.
* Never start a panic due to a signal caused by a cgo call.
Fixes#3774.
Fixes#3775.
Fixes#3797.
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7228081
This prevents the occasional issue when Mercurial screws up the locking
itself, and by moving the locking into this process we can use the
goroot for other things (such as automatically updating the builder
binary).
It also asks all builders to poll for new commits.
R=bradfitz, dave, minux.ma, rsc
CC=golang-dev
https://golang.org/cl/7178046
This proposal updates the dashboard builder to avoid relying on the (soon to be removed) support for using go get to download to $GOROOT. The result is
WORKSPACE=$(the value of the -buildRoot flag / $BUILDER_NAME + hg revision)
GOROOT=$WORKSPACE/go
GOPATH=$WORKSPACE
Required for CL 6941058.
R=minux.ma, adg
CC=golang-dev
https://golang.org/cl/7034049
Enable cgo on OpenBSD.
The OpenBSD ld.so(1) does not currently support PT_TLS sections. Work
around this by fixing up the TCB that has been provided by librthread
and reallocating a TCB with additional space for TLS. Also provide a
wrapper for pthread_create, allowing zeroed TLS to be allocated for
threads created externally to Go.
Joint work with Shenghou Ma (minux).
Requires change 6846064.
Fixes#3205.
R=golang-dev, minux.ma, iant, rsc, iant
CC=golang-dev
https://golang.org/cl/6853059
compiler_rt introduces a weak and hidden symbol compilerrt_abort_impl
into our pre-linked _all.o object, we have to handle it.
Fixes#4273.
R=iant, rsc, r
CC=golang-dev
https://golang.org/cl/6783050
The "did_ftplugin" lines were ineffective and the "K" mapping was too
invasive, which is why it was removed.
R=golang-dev, dsymonds, minux.ma
CC=golang-dev
https://golang.org/cl/6823044
Too many people quote entire emails and put their reply at the top ("top posting"),
so we shouldn't recognise review commands anywhere in the review text.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6815048
In a few places, the existing cgo tests assume that a
Go int is the same as a C int. Making int 64 bits wide
on 64-bit platforms violates this assumption.
Change that code to assume that Go int32 and C int
are the same instead. That's still not great, but it's better,
and I am unaware of any systems we run on where it is not true.
Update #2188.
R=iant, r
CC=golang-dev
https://golang.org/cl/6552064
Always process the DWARF info, even when the const value is determined
using the debug data block. This ensures that the injected enum is
removed and future loads of the same constant do not trigger
inconsistent definitions.
Add tests for issues 2470 and 4054.
Fixes#4054.
R=golang-dev, fullung, dave, rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6501101
Previously, an import block such as
import (
"net"
"stack"
)
would not permit ":Drop stack" to work because we were aborting
the scan early, which is only correct when Import is in operation.
R=golang-dev, franciscossouza
CC=golang-dev
https://golang.org/cl/6532053
use a function to get stdout and stderr, instead of depending
on a specific libc implementation.
also make test/run.go replace \r\n by \n before comparing
output.
Fixes#2121.
Part of issue 1741.
R=alex.brainman, rsc, r, remyoudompheng
CC=golang-dev
https://golang.org/cl/5847068
I thought this was redundant since the behavior of 'go get -d' had
changed. I was wrong. Should have tested more thoroughly.
R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6500136
We have some tests (misc/cgo/test) that are disabled only because
they will fail to run on go builder - see issue 3358 for details.
This change will allow us to enable these tests.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6493118
Fixes#4008.
Run a background goroutine that wastes CPU to trick the
power management into raising the CPU frequency which,
by side effect, makes sleep more accurate on arm.
=== RUN TestParallelSleep
--- PASS: TestParallelSleep (1.30 seconds)
_cgo_gotypes.go:772: sleep(1) slept for 1.000458s
R=minux.ma, r
CC=golang-dev
https://golang.org/cl/6498060
Vim autocompletion respects the $GOPATH variable and does not
ignore dashes ('-'), dots ('.') and underscores ('_') like found
in many remote packages.
Environment variable $GOROOT is determined by calling
'go env GOROOT' instead of relying on the user's environment
variables.
Fixes#3876Fixes#3882
R=golang-dev, franciscossouza, dsymonds, minux.ma
CC=golang-dev
https://golang.org/cl/6443151
- pprof is a perl script, so go command should invoke
perl instead of trying to run pprof directly;
- pprof should use "go tool nm" unconditionally on windows,
no one else can extract symbols from Go program;
- pprof should use "go tool nm" instead of "6nm".
Fixes#3879.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6445082
This CL adds a step to the build procedure for cgo programs. It uses 'ld -r'
to combine all gcc compiled object file and generate a relocatable object file
for our ld. Additionally, this linking step will combine some static linking
gcc library into the relocatable object file, so that we can use libgcc,
libmingwex and libmingw32 without problem.
Fixes#3261.
Fixes#1741.
Added a testcase for linking in libgcc.
TODO:
1. still need to fix the INDIRECT_SYMBOL_LOCAL problem on Darwin/386.
2. still need to enable the libgcc test on Linux/ARM, because 5l can't deal
with thumb libgcc.
Tested on Darwin/amd64, Darwin/386, FreeBSD/amd64, FreeBSD/386, Linux/amd64,
Linux/386, Linux/ARM, Windows/amd64, Windows/386
R=iant, rsc, bradfitz, coldredlemur
CC=golang-dev
https://golang.org/cl/5822049
Enhances test/run.go to support testing other directories
Will enable stdio tests on Windows in a follow-up CL.
R=golang-dev, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/6220049
This line helps me to tell whether the CL is waiting for me or I'm waiting for the author.
Also:
- vertical-align table cells so buttons are always aligned with CL headers.
- add email= to show front page for someone else.
Demo at http://rsc.gocodereview.appspot.com/.
Until this is deployed for real, some recently changed CLs may be
missing the 'first line of last message' part.
R=dsymonds
CC=golang-dev
https://golang.org/cl/6446065
To be filled in by a later CL. I deployed a test version to
App Engine to work on setting the values, so there are
a few records that have this field set already.
That field is breaking the live version, so I have pushed
a new copy with this 1-line change to the live version
I assumed that appengine/datastore was like every other
marshaling and unmarshaling package we have in Go
(for example, encoding/gob, encoding/json, encoding/xml,
and protobuf) and that if it loaded an unknown field it would
just ignore it. Apparently not. Sorry.
R=dsymonds
TBR=dsymonds
CC=golang-dev
https://golang.org/cl/6454064
This is the state when the CL has been submitted by someone other than
the CL author, but before the CL author has synched their client.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6458044
A "NOT LGTM" overrules a previous "LGTM" by the same person, and vice versa.
"NOT LGTM"s are shown in the same location as LGTMs, colored red.
R=rsc
CC=golang-dev
https://golang.org/cl/6453062
If a factored import group has a blank line, assume it is dividing
separate groups of imports (e.g. standard library vs. site-specific).
import (
"bytes"
"io"
"mycorp/package"
)
The most common case is inserting new standard library imports,
which are usually (stylistically) the first group, so we should drop
"net" in the above example immediately after "io".
Since this logic is getting non-trivial, add a test.
R=golang-dev, minux.ma, franciscossouza
CC=golang-dev
https://golang.org/cl/6445043
The previous code assumed the gofmt output referred to /tmp but
that's not true if TMPDIR points somewhere else (like on Macs).
Fixes#3782.
R=sameer
CC=golang-dev
https://golang.org/cl/6346050
Use code to be used in lisp programs as suggested in the doc strings for
replace-{string|regexp}. Bonus: This code works for XEmacs.
R=golang-dev, sameer, jmeurin
CC=golang-dev
https://golang.org/cl/6296073
Patching the buffer with the output from gofmt -d only works if
the file already exists. If it doesn't, replace the content with
the output of gofmt.
R=sameer
CC=golang-dev
https://golang.org/cl/6302063
The datastore.Query methods once mutated the Query value, but now they return
a derivative query, so the Hash= and ParentHash= filters were not being
applied.
R=golang-dev, bradfitz, dsymonds
CC=golang-dev
https://golang.org/cl/6300058
Split stdout/stderr into a separate file so that can be handled
differently on some platforms. Both NetBSD and OpenBSD have defines
for stdout/stderr that require some coercion in order for cgo to
handle them correctly.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6247062
specifically, adds a go-test element to compilation-error-regexp-alist[-alist].
Fixes#3629.
R=golang-dev, rsc, sameer
CC=golang-dev, jba
https://golang.org/cl/6197091
The previous heap profile format did not include buckets with
zero used bytes. Also add several missing MemStats fields in
debug mode.
R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/6249068
This uses the patch output of gofmt (-d option) and applies each
chunk to the buffer, instead of replacing the whole buffer. The
main advantage is that the undo history is kept across gofmt'ings,
so it can really be used as a before-save-hook.
R=sameer, sameer
CC=golang-dev
https://golang.org/cl/6198047
Two fixes for indentation problems:
1. Properly recognize multi-line strings. These start with `, not ".
2. Don't indent a line if the beginning of the line is the end of a multi-line string. This happened for instance when inserting a closing bracket after a multi-line string.
R=sameer
CC=golang-dev
https://golang.org/cl/6157044
As our CL number could be as small as 152046, changed CL number's lower bound
to 150000. Hopefully our issue count won't reach 150000 any time soon.
Chrome on Mac OS X has very strange behavior regarding the focus, although we
force the focus to the input box on load, the page still come up with focus on
"issue". Set the tabindex of the input box as a workaround.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6212055
This adds restoring the window position so that the buffer doesn't jump around after the erase/copy.
R=sameer
CC=golang-dev
https://golang.org/cl/5981055
1. In CL 5989057, I made a mistake in the last minute change.
"MOVW.W R4, -4(SP)" should really be "MOVW.W R4, -4(R13)",
as 5l will rewrite offset for SP.
2. misc/cgo/test/issue1560.go tests for parallel sleep of 1s,
but on ARM, the deadline is frequently missed, so change sleep
time to 2s on ARM.
R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6202043
If we delay the mail sending, we can't send as the current user.
If we don't fill in the time.Time fields, datastore.Put will fail
because the zero time.Time value is out of its range.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6136053
This changes the misc/dist program to generate OS X
packages using pkgbuild and productbuild.
The productbuild utility makes it easy to generate
packages with a custom Distribution file. This allows
us to add an installcheck script that presents a
friendly message to users who are running on an old
version of Mac OS X.
The change also fixes a few issues with the
postinstall script:
- In-repo version of the script has been made
executable. Installers generated using the new
tools couldn't execute it otherwise.
- It now uses -d for checking for the existence
of the Xcode specs directory.
- The call to sudo.bash has been dropped since cov
and prof aren't bundled with the binary
distributions.
Fixes#3455.
Tested on 10.5.8, 10.6.0, 10.6.8 and 10.7.3.
R=adg, golang-dev
CC=golang-dev
https://golang.org/cl/5987044
adg removed some now-unwanted fields in Package a while ago,
but there are still datastore entities with those fields,
so we must explicitly check for ErrFieldMismatch and ignore it.
R=golang-dev, rsc
CC=adg, golang-dev
https://golang.org/cl/6007043
Doesn't fix any known issue. This bit me in some unrelated
code and I thought of this tool.
R=golang-dev, krautz, mikkel
CC=golang-dev
https://golang.org/cl/5976067
- flag * and / as comment characters
- mark newline as a comment-ender
- include newline in go-mode-whitespace-p
Thanks Jonathan Amsterdam and Steve Yegge for the patch!
R=golang-dev, rsc
CC=golang-dev, jba, stevey
https://golang.org/cl/5938056
Fixes#3313
go-mode-backward-skip-comments is probably due for a more ambitious refactoring --- it repeats guard conditions after every nearly every movement of point.
R=sameer, r
CC=golang-dev
https://golang.org/cl/5844063
1. make the program go buildable
2. update os.EINVAL and runtime.Cgocalls()
3. wrap mpz_div_2exp() and mpz_mul_2exp to support both
pre-5.0 and post-5.0 gmp (we really have no reason to
restrict ourselves to gmp 5.0+)
R=golang-dev, remyoudompheng, iant
CC=golang-dev
https://golang.org/cl/5847061
Currently, ftdetect/gofiletype.vim set fileencodings to open the file as
utf-8 encoding event if the file does not contain multibyte characters.
But fileencodings is global option.
$ vim foo.txt
:set fileencodings
utf-8,ucs-bom,cp932
$ vim foo.go
:set fileencodings
utf-8
This change restore fileencodings before opening the file.
Also added specify fileformats=unix.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5718045
This should live in archive/tar later (CL 5796073) but we
can always do that after Go 1 and stick it here for now.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5754096
For people untarring with -p or as root, preserving file permissions.
This way we don't make tars owned by adg/eng or adg/staff or whatever
machine Andrew was on. Instead, we always build tarballs owned by predictable
users.
Except archive/tar doesn't seem to work.
Updates #3209.
R=golang-dev, adg
CC=dsymonds, golang-dev
https://golang.org/cl/5796064
Use archive/zip instead of 7z on Windows.
Look for all Windows deps before starting build, and include looking
for them in their common locations instead of making users update
their PATHs.
Add an --upload flag that, if set to false, doesn't require credential
files.
R=golang-dev, alex.brainman, adg
CC=golang-dev
https://golang.org/cl/5794046
As we've dropped support for Mac OS X 10.5, I think the generated .pkg
should reflect that decision.
But this CL make it impossible to generate pkg on Mac OS X 10.6, at least
for me.
R=adg, bradfitz
CC=golang-dev
https://golang.org/cl/5798051
The test.bash file generates .so file using gcc, builds the executable
using the go tool and then run it with the $LD_LIBRARY_PATH variable
pointing to the directory where the .so file lives.
Fixes#2982.
R=rsc, remyoudompheng
CC=golang-dev
https://golang.org/cl/5788043
We decided not to record installs, for now at least.
««« original CL description
misc/dashboard: record install counts for external packages
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5699082
»»»
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5790044
Does not actually test so files.
««« original CL description
misc/cgo: re-enable testso
Also enabled it for darwin.
R=rsc
CC=golang-dev
https://golang.org/cl/5754063
»»»
R=golang-dev, minux.ma, r, f
CC=golang-dev
https://golang.org/cl/5756075
The last CL forgot the all-important 'backdoor' package.
Cgo-using packages compile .c files with gcc, but we want
to compile this one with 6c, so put it in a non-cgo package.
TBR=golang-dev
CC=golang-dev
https://golang.org/cl/5758063
go.xclangspec is identical to the one in misc/xcode/3/, except for the heading.
Partial workaround for issue 2401.
R=gri
CC=golang-dev
https://golang.org/cl/5732051
Work around profiling kernel bug with signal masks.
Still broken on 64-bit Snow Leopard kernel,
but I think we can ignore that one and let people
upgrade to Lion.
Add new trivial tools addr2line and objdump to take
the place of the GNU tools of the same name, since
those are not installed on OS X.
Adapt pprof to invoke 'go tool addr2line' and
'go tool objdump' if the system tools do not exist.
Clean up disassembly of base register on amd64.
Fixes#2008.
R=golang-dev, bradfitz, mikioh.mikioh, r, iant
CC=golang-dev
https://golang.org/cl/5697066
This covers most of the tool's functionality. At some point,
support should probably be added for testflags and the various go
tools.
R=golang-dev, bradfitz, kyle, minux.ma
CC=golang-dev
https://golang.org/cl/5646066
fix, and shrink, the gopher icon, txt extensions
for license and readme files, minor format changes
in the wxs file
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5683054
Embedded Go images in the installer dialog and
banner boxes, Go tree cloning uses version info
from the Go tool (readme updated), the installer
allows up/down-grading and reparing of the version
that's installed, added two registry values.
R=golang-dev, bradfitz, bradfitz
CC=golang-dev
https://golang.org/cl/5683048
Added the (properly formatted) license file back,
the installer adds go\bin to the system PATH now,
the output package names are in line with the linux
and darwin versions, dist.bat extracts GOARCH in a
sane way, readme cleanup.
Tested on Windows 7 only. It would be helpful if
someone else could give it a try. See the readme
for details.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5673099
files moved from misc/windows, bash packager file replaced with Windows batch file
R=golang-dev, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/5677074
Also: Simplified handling of selector expressions. As a result, complicated
multi-line expressions containing selectors and calls/indices with arguments
broken accross lines don't get indented the same way as before, but the change
is minimal (see tests) and there's no such code in the std library. It seems
a worthwhile compromise given the much simpler code.
Applied gofmt -w $GOROOT/src $GOROOT/misc .
Fixes#1847.
R=rsc
CC=golang-dev
https://golang.org/cl/5675062
Not causing problems yet, but no need to
keep using cygwin paths now that we're off cygwin.
R=alex.brainman
CC=golang-dev
https://golang.org/cl/5656053
This is for filling a column with "fail", like I just did for
Windows, when the builder would get stuck running that
build. (We have safeguards against the tests getting stuck
but this was the bootstrap build getting stuck.)
I usually use -cmd=/bin/false, but this avoids the Mercurial
checkouts, which means it runs instantly instead of requiring
~1 minute per "fail".
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5649049
Do not rewrite commands if they have .bash extnsion.
Use path/filepath to manipulate file paths everywhere.
Use all.bat on windows, not all.bash.
Use HOMEDRIVE/HOMEPATH to find .gobuildkey on windows.
R=rsc
CC=golang-dev
https://golang.org/cl/5630062
There's no reason to set GOROOT as the tools will have the path baked
into it with GOROOT_FINAL.
R=bradfitz, bytbox, gustavo, rsc
CC=golang-dev
https://golang.org/cl/5576064
Consequently, remove many package Makefiles,
and shorten the few that remain.
gomake becomes 'go tool make'.
Turn off test phases of run.bash that do not work,
flagged with $BROKEN. Future CLs will restore these,
but this seemed like a big enough CL already.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5601057
Also delete gotest, since it's messy to fix and slated for deletion anyway.
A couple of things outside src can't be tested any more. "go test" will be
fixed and these tests will be re-enabled. They're noisy for now.
Fixes#284.
R=rsc
CC=golang-dev
https://golang.org/cl/5598049
The one time they recovered from anything they obscured a useful stack
trace. We're better off just crashing hard.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5577073
Includes gofix module. The only case not covered should be
xml.Unmarshal, since it remains with a similar interface, and
would require introspecting the type of its first argument
better.
Fixes#2626.
R=golang-dev, rsc, gustavo
CC=golang-dev
https://golang.org/cl/5574053
- use proper Win64 gcc calling convention when
calling initcgo on amd64
- increase g0 stack size to 64K on amd64 to make
it the same as 386
- implement C.sleep
- do not use C.stat, since it is renamed to C._stat by mingw
- use fopen to implement TestErrno, since C.strtol
always succeeds on windows
- skip TestSetEnv on windows, because os.Setenv
sets windows process environment, while C.getenv
inspects internal C runtime variable instead
R=golang-dev, vcc.163, rsc
CC=golang-dev
https://golang.org/cl/5500094
- the main changes are removing the Doc suffix
from the exported types, so instead of
doc.TypeDoc one will have doc.Type, etc.
- All exported types now have a Name (or Names) field.
For Values, the Names field lists all declared variables
or constants.
- Methods have additional information about where they are
coming from.
- There's a mode field instead of a bool to
control the package's operation, which makes
it easier to extend w/o API changes.
Except for the partially implemented new Method type,
this is based on existing code. A clean rewrite is in
progress based on this new API.
R=rsc, kevlar
CC=golang-dev
https://golang.org/cl/5528060
The domain returned by appengine.DefaultVersionHostname
isn't the one we want.
This change has been uploaded to build.golang.org
R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/5539043
Instead of syntax-tables, an extended go-mode-cs is used for
from a font-lock callback.
Cache invalidation must happen in a before-change-function
because font-lock runs in an after-change-function, potentially
before the cache invalidation takes place.
Performance is reasonable, even with src/pkg/html/entity.go
and test/fixedbugs/bug257.go.
Fixes#2330.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5529045
The go command lists all packages that were built.
A recent breakage notification included this text:
$ tail -100 < log
ok errors
ok exp/ebnf
? exp/ebnflint [no test files]
ok exp/gotype
ok exp/norm
ok exp/spdy
If the breakage occurred before this point it would
not be visible in the output.
R=golang-dev, gri, kevlar
CC=golang-dev
https://golang.org/cl/5504109
The two heading rows were previously a little hard to pick out,
because they were alternately shaded like the commit rows.
R=adg
CC=golang-dev
https://golang.org/cl/5500074
* group builders in to columns by OS
* drop builder suffix (moved to hover title)
* cut all domain names from email (full name+email in hover title)
* make ok smaller
This should easily give us room for netbsd and plan9,
even on small laptop screens.
Running at http://build-rsc.golang.org/.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5501064
This change doesn't pay attention to structs
so they still cannot be exported, see Issue 2552.
Fixes#2462.
R=dvyukov, rsc, iant
CC=golang-dev
https://golang.org/cl/5487058
The filetype needs to be set during BufRead in order for the did_filetype() check to prevent the file being detected as a conf file. One example where this can occur is if a cgo file has a #include at the top of the file. The # is detected in vim's generic configuration (conf file) toward the bottom of filetype.vim
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5496066
All but 3 cases (in gcimporter.go and hixie.go)
are automatic conversions using gofix.
No attempt is made to use the new Append functions
even though there are definitely opportunities.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5447069
The installer now: allows a user to select an alternative
install directory, it now adds a Go folder to the Programs
Menu, and it places two shortcuts on the user's desktop.
The Program Menu folder contains shortcuts to the uninstaller
and two batch files, go.bat and godoc.bat. The desktop
shortcuts also point to go.bat and godoc.bat.
go.bat sets the Go environment, including Path, and spawns a
Window's shell. godoc.bat starts the godoc server at
localhost:6060 then spawns a browser window pointing to the
document server.
Setting the environment temporarily and spawning a shell, via
go.bat, should be safer than messing with the system's environment
and it makes the user experience a bit more streamlined.
The packager does work in its current state but it still needs
some polishing. And yes, the plan is to add a dialogue to allow
the user to decline the desktop shortcuts.
R=rsc, alex.brainman, tjyang2001
CC=golang-dev
https://golang.org/cl/5399042
I've been using this since April and posted it on the
mailing list, but it seems worth having in the repository.
Not sure about the location.
R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/5371100
Requesting suggestions for the comment and description strings in installer.wxs.
Fixes#2394.
R=rsc, alex.brainman, tjyang2001
CC=golang-dev
https://golang.org/cl/5339046
Fixes crash when cgo consumes more than 8K
of stack and makes a callback.
Fixes#1328.
R=golang-dev, rogpeppe, rsc
CC=golang-dev, mpimenov
https://golang.org/cl/5371042
If a frame has multiple windows then the windows must all be restored
after gofmt has finished and the old windows must be restored.
Before this fix, only the Go code edit window would be left.
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5280050
There may be more fine-tuning down the line,
but this CL fixes the most pressing issue at
hand.
Also: gofmt -w src misc
Fixes#1524.
R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/4975053
Also standardize on 'utf8' as encoding name.
Apparently either is acceptable.
The user, because it is a StringProperty,
must be of type unicode in order to handle
Unicode correctly. It must *not* have type string.
The desc, because it is a BlobProperty, must
be of type string in order to handle Unicode correctly.
It must *not* have type unicode.
Yay encoding type pedantry without static typing.
R=adg, mattn.jp
CC=golang-dev
https://golang.org/cl/4973045
It's a balance between fetching too much
and falling far enough behind that you can't
catch up. We missed 20 commits in a row
when the builders were down for a few days.
This gives us a little more leeway.
R=adg
CC=golang-dev
https://golang.org/cl/4936047
Allocate Defer on stack during cgo calls, as suggested
by dvyukov. Also includes some comment corrections.
benchmark old,ns/op new,ns/op
BenchmarkCgoCall 669 330
(Intel Xeon CPU 1.80GHz * 4, Linux 386)
R=dvyukov, rsc
CC=golang-dev
https://golang.org/cl/4910041
It's already in old/template; make that build.
Update a couple of references to point to the old template.
They can be updated later.
Update goplay to use exp/template.
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4902046
This is just moving the URL code from package http into its own package,
which has been planned for a while.
Besides clarity, this also breaks a nascent dependency cycle the new template
package was about to introduce.
Add a gofix module, url, and use it to generate changes outside http and url.
Sadness about the churn, gladness about some of the naming improvements.
R=dsymonds, bradfitz, rsc, gustavo, r
CC=golang-dev
https://golang.org/cl/4893043
When the C API being used includes multiple names for the same
underlying symbol (e.g. multiple #define's for the same variable), then
cgo will generate the same placeholder variables for each name. This
then prevents the code from compiling due to multiple declarations of
the same variable - so change cgo to only create one instance of the
variable for the underlying symbol.
R=rsc
CC=golang-dev
https://golang.org/cl/4826055
This permits full URLs to be shown on the dashboard,
not just the repository roots.
This has been tested.
R=rsc, mattn.jp
CC=golang-dev
https://golang.org/cl/4627081
Change the signature of Split to have no count,
assuming a full split, and rename the existing
Split with a count to SplitN.
Do the same to package bytes.
Add a gofix module.
R=adg, dsymonds, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/4661051
This replaces most the map[string][]string usage with
a new Values type name, with the usual methods.
It also changes client.PostForm to take a Values, rather
than a map[string]string, closing a TODO in the code.
R=rsc
CC=golang-dev
https://golang.org/cl/4532123
1) runLog to return err==nil if program runs, but returns exitcode!=0;
2) runLog to return err!=nil when fails to create log file;
3) print failed program name, not just "all.bash".
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4532117
This removes exec.Run and replaces exec.Cmd with a
new implementation. The new exec.Cmd represents
both a currently-running command and also a command
being prepared. It has a good zero value.
You can Start + Wait on a Cmd, or simply Run it.
Start (and Run) deal with copying stdout, stdin,
and stderr between the Cmd's io.Readers and
io.Writers.
There are convenience methods to capture a command's
stdout and/or stderr.
R=r, n13m3y3r, rsc, gustavo, alex.brainman, dsymonds, r, adg, duzy.chan, mike.rosset, kevlar
CC=golang-dev
https://golang.org/cl/4552052
Contains common links & a smart text box that recognizes various
identifiers and jumps to one of:
* issue URL,
* codereview URL,
* commit URL,
* package docs
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4553058
This appears to have been a long-standing formatting bug.
The test cases has misformatted golden files.
Applied gofmt -w src misc .
Fixes#1839.
R=iant
CC=golang-dev
https://golang.org/cl/4515113
This uses a fully custom function for indenting Go code in Vim.
It provides a lot more flexibility than a cindent-based approach,
so this version gets the := operator correct, as well as switch
labels and jump labels.
One outstanding TODO is to handle lines immediately after jump labels.
R=adg, n13m3y3r, jnwhiteh, dchest, rsc, rlight2
CC=golang-dev, rivercheng
https://golang.org/cl/4534047
This CL:
-- removes Response.RequestMethod string
-- adds Response.Request *Request
-- removes the finalURL result parameter from client.Get()
-- adds a gofix rule for callers of http.Get which assign
the final url to the blank identifier; warning otherwise
Caller who did:
res, finalURL, err := http.Get(...)
now need to do:
res, err := http.Get(...)
if err != nil {
...
}
finalURL := res.Request.URL.String()
R=rsc
CC=golang-dev
https://golang.org/cl/4535056
In the new world, one builder runs
gobuilder -commit
which uploads information about commits to the dashboard,
which then hands the work out to the builders by hash.
There is no assumption anymore that the commit numbers
are consistent across builders.
New builders will need to be deployed. For now darwin-amd64
is running the new builder to test the code.
The new JSON-based protocol for handing out work via /todo
should be easy to extend if we want to add support for sending
trial CLs to the builders.
This code is already running on godashboard.appspot.com.
R=adg, dave
CC=golang-dev
https://golang.org/cl/4519047
The new gotest ignores Test functions outside *_test.go files
(the old shell script allowed them), so replace one clumsy hack
with another.
The root problem is that the package makefiles only know
how to run cgo for source files in the package proper, not
for test files. Making it work for test files is probably more
trouble than it's worth.
R=bradfitz
CC=golang-dev
https://golang.org/cl/4452060
Will fill dashboard down the screen instead of up
when builders get stuck and resume. Already live.
Also delete dead benchmark code.
I think it is safe to say that if/when we bring
benchmarks back, we will use a different
data model.
Fixes#1228.
R=adg
CC=golang-dev
https://golang.org/cl/4449059
Fmt command filters the current Go buffer through gofmt.
It tries to preserve cursor position and avoids replacing
the buffer with stderr output.
R=golang-dev, dsymonds, niemeyer
CC=golang-dev
https://golang.org/cl/4382053
The changes were not tested for real in an App Engine environment,
so extra care should be taken. That said, some static testing
was done with pyflakes, and a few existent problems were fixed on
the way.
R=adg
CC=golang-dev
https://golang.org/cl/4378053
We replace the current Open with:
OpenFile(name, flag, perm) // same as old Open
Open(name) // same as old Open(name, O_RDONLY, 0)
Create(name) // same as old Open(name, O_RDWR|O_TRUNC|O_CREAT, 0666)
This CL includes a gofix module and full code updates: all.bash passes.
(There may be a few comments I missed.)
The interesting packages are:
gofix
os
Everything else is automatically generated except for hand tweaks to:
src/pkg/io/ioutil/ioutil.go
src/pkg/io/ioutil/tempfile.go
src/pkg/crypto/tls/generate_cert.go
src/cmd/goyacc/goyacc.go
src/cmd/goyacc/units.y
R=golang-dev, bradfitzwork, rsc, r2
CC=golang-dev
https://golang.org/cl/4357052
Change M-x gofmt to display errors in a new buffer instead of
clobbering the current buffer.
Add gofmt-before-save, which runs gofmt when in go-mode. This
can be used with before-save-hook. Add to your .emacs:
(add-hook 'before-save-hook 'gofmt-before-save)
R=rsc, aclements, amdragon
CC=golang-dev
https://golang.org/cl/4276059
* Change use of m->g0 stack (aka scheduler stack).
* Provide runtime.mcall(f) to invoke f() on m->g0 stack.
* Replace scheduler loop entry with runtime.mcall(schedule).
Runtime.mcall eliminates the need for fake scheduler states that
exist just to run a bit of code on the m->g0 stack
(Grecovery, Gstackalloc).
The elimination of the scheduler as a loop that stops and
starts using gosave and gogo fixes a bad interaction with the
way cgo uses the m->g0 stack. Cgo runs external (gcc-compiled)
C functions on that stack, and then when calling back into Go,
it sets m->g0->sched.sp below the added call frames, so that
other uses of m->g0's stack will not interfere with those frames.
Unfortunately, gogo (longjmp) back to the scheduler loop at
this point would end up running scheduler with the lower
sp, which no longer points at a valid stack frame for
a call to scheduler. If scheduler then wrote any function call
arguments or local variables to where it expected the stack
frame to be, it would overwrite other data on the stack.
I realized this possibility while debugging a problem with
calling complex Go code in a Go -> C -> Go cgo callback.
This wasn't the bug I was looking for, it turns out, but I believe
it is a real bug nonetheless. Switching to runtime.mcall, which
only adds new frames to the stack and never jumps into
functions running in existing ones, fixes this bug.
* Move cgo-related code out of proc.c into cgocall.c.
* Add very large comment describing cgo call sequences.
* Simpilify, regularize cgo function implementations and names.
* Add test suite as misc/cgo/test.
Now the Go -> C path calls cgocall, which calls asmcgocall,
and the C -> Go path calls cgocallback, which calls cgocallbackg.
The shuffling, which affects mainly the callback case, moves
most of the callback implementation to cgocallback running
on the m->curg stack (not the m->g0 scheduler stack) and
only while accounted for with $GOMAXPROCS (between calls
to exitsyscall and entersyscall).
The previous callback code did not block in startcgocallback's
approximation to exitsyscall, so if, say, the garbage collector
were running, it would still barge in and start doing things
like call malloc. Similarly endcgocallback's approximation of
entersyscall did not call matchmg to kick off new OS threads
when necessary, which caused the bug in issue 1560.
Fixes#1560.
R=iant
CC=golang-dev
https://golang.org/cl/4253054
In line with other functions such as Fprintf, put the
thing to be written first.
Apologies for the breakages this is sure to cause.
R=rsc, gri, adg, eds, r2, aam
CC=golang-dev
https://golang.org/cl/4169042
This aligns the naming scheme with the testing package and
also lets govet work on more logging calls.
R=rsc
CC=golang-dev
https://golang.org/cl/4001048
This change fixes the import plugin so that the
defined commands are available when opening a new
Go buffer from within Vim itself.
R=adg, rsc
CC=golang-dev
https://golang.org/cl/3998053
Forcing the synchronization of 500 lines is both slower and
less precise than searching for a known sync point.
Unfortunately, though, the way to synchronize correctly is
using the grouphere instruction, which has a bug.
I've already proposed the fix to Vim, so future releases
should have this working. We can continue using the 500 lines
syncing for now.
This change just documents the proper way to sync.
R=adg, dsymonds
CC=golang-dev
https://golang.org/cl/4029047
New ftplugin adds Import and Drop commands for Go buffers
in Vim. These commands ensure that the provided package is
imported (or not imported) in the current Go buffer, using
proper style and ordering, without moving the cursor.
E.g.
:Import strings
:ImportAs . strings
:Drop strings
Two mappings are also introduced to help with the fmt package:
\f => :Import fmt
\F => :Drop fmt
R=adg
CC=golang-dev
https://golang.org/cl/4009043
#pragma dynexport is no longer needed for
this use of cgo, since the gcc and gc code are
now linked together into the same binary.
It may still be necessary later.
On the Mac, you cannot use the GOT to resolve
symbols that exist in the current binary, so 6l and 8l
translate the GOT-loading mov instructions into lea
instructions.
On ELF systems, we could use the GOT for those
symbols, but for consistency 6l and 8l apply the
same translation.
The translation is sketchy in the extreme
(depending on the relocation being in a mov
instruction) but it verifies that the instruction
is a mov before rewriting it to lea.
Also makes typedefs global across files.
Fixes#1335.
Fixes#1345.
R=iant, r
CC=golang-dev
https://golang.org/cl/3650042
Clean up an error message and error exit too.
Insert blank line after "DO NOT EDIT" comment
to keep it from being a doc comment.
Fixes#1213.
Fixes#1222.
R=r
CC=golang-dev
https://golang.org/cl/3608042
* Add documentation about array arguments. Fixes issue 1125.
* Do not interpret x, y := z, w as special errno form. Fixes issue 952.
* Fix nested Go calls (brainman). Fixes issue 907.
R=r
CC=golang-dev
https://golang.org/cl/2214044
- fix release upload
- add -rev= flag to build specific revision and exit
- added support for all-$GOARCH.bash
R=rsc
CC=golang-dev
https://golang.org/cl/2247044
Plus automatic package<->project association script.
(This is just a helper script for now. I intend to fully automate
the associations further down the track.)
R=rsc
CC=golang-dev
https://golang.org/cl/1715054
* remember #defined names, so that C.stdout can refer
to the real name (on OS X) __stdoutp.
* better handling of #defined constant expressions
* allow n, err = C.strtol("asdf", 0, 123) to get errno as os.Error
* write all output files to current directory
* don't require gcc output if there was no input
Fixes#533.
Fixes#709.
Fixes#756.
R=r
CC=dho, golang-dev, iant
https://golang.org/cl/1734047
Based on the review of CL 1723044, I've changed the installation instructions
for the vim syntax files to suggest symlinking the files rather than copying
the files. Also the wording has changed to be more consistent.
R=golang-dev, Kyle Lemons, adg
CC=golang-dev
https://golang.org/cl/1702045
This sets up vim to work out of the box with go programs as long as syntax
highlighting is enabled. Both files must be copied to the vim runtime
directory in order for the file-type detection and syntax loading to work.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/1723044
This results in a 10-20x size reduction per record.
(from ~150kb to ~10kb)
This revision has been pushed live, as I'm in the process of
converting Log records to bz2-compresed CompressedLog records.
I would have waited but we're running seriously low on space
and it seemed like a sane (and reversible) move.
R=rsc
CC=golang-dev
https://golang.org/cl/872048
this is a version synthesized from rsc's, dean's and my
versions. changes and updates:
- embeds the retval script and pushes a new version to the
device if needed
- passes arguments correctly to the program on the device
- export GOARCH, GOTRACEBACK and GOGC from the local
environment to the device.
- added times.out support to run-arm
enabled a few tests that are now passing and moved the
GOGC=off workaround to run-arm.
R=dpx
CC=golang-dev, rsc
https://golang.org/cl/880046
various caching. make benchmark data a list
in a single per-builder,benchmark record instead
of having one record for each data point.
significant reduction in datastore cpu charges.
R=agl1, agl
CC=golang-dev
https://golang.org/cl/217111
reorganize benchmark computation so that it is
incremental. if it times out, it doesn't lose the
pieces it already computed, so that next time it
has a fighting chance to finish.
R=agl1, agl
CC=golang-dev
https://golang.org/cl/216046
* fix bug in benchmark collection: bad benchmark data key
meant that all the builders collided when writing data.
* report benchmarks even if make bench exits non-zero.
* graphical and json presentations
R=agl1
CC=golang-dev
https://golang.org/cl/201065
so that if you have a key.py with the real key,
there is no chance hg change will accidentally
make a CL with the real key and upload it to codereview.
R=agl1
CC=golang-dev
https://golang.org/cl/196051
This has actually been running for a while and gathering benchmark
data. I haven't had a chance to add a UI for it yet however.
R=rsc
CC=golang-dev
https://golang.org/cl/194082
Sometimes during editing, when the buffer is emptied (for example,
as part of a call to M-x gofmt), an error is raised when
remove-text-properties is called. Ensure that these calls use point-max
instead of buffer-size to determine their end point.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/189042
These are the scripts behind godashboard.appspot.com. Nothing is
particularly beautiful about it, but it does run.
I still need to add support for per-builder keys and for running the
benchmarks.
R=rsc
CC=golang-dev
https://golang.org/cl/183153
Added definition for raw string.
Added definitions for function and method declarations.
Enabled function, method, and type declarations to appear in Editor pop up menu.
Fixes#466.
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/183065
parsing and printing to new syntax.
Use -oldparser to parse the old syntax,
use -oldprinter to print the old syntax.
2) Change default gofmt formatting settings
to use tabs for indentation only and to use
spaces for alignment. This will make the code
alignment insensitive to an editor's tabwidth.
Use -spaces=false to use tabs for alignment.
3) Manually changed src/exp/parser/parser_test.go
so that it doesn't try to parse the parser's
source files using the old syntax (they have
new syntax now).
4) gofmt -w src misc test/bench
1st set of files.
R=rsc
CC=agl, golang-dev, iant, ken2, r
https://golang.org/cl/180047
This change removes the necessity to have GOBIN in $PATH,
and also doesn't assume that the build is being run from
$GOROOT/src. This is a minimal set of necessary changes
to get Go to build happily from the FreeBSD ports
collection.
R=rsc
CC=golang-dev
https://golang.org/cl/171044
the bash scripts and makefiles for building go didn't take into account
the fact $GOROOT / $GOBIN could both be directories containing whitespaces,
and was not possible to build it in such a situation.
this commit adjusts the various makefiles/scripts to make it aware of that
possibility, and now it builds successfully when using a path with whitespaces
as well.
Fixes#115.
R=rsc, dsymonds1
https://golang.org/cl/157067
cgo/libmach remain unimplemented. However, compilers, runtime,
and packages are 100%. I still need to go through and implement
missing syscalls (at least make sure they're all listed), but
for all shipped functionality, this is done. Ship! ;)
R=rsc, VenkateshSrinivas
https://golang.org/cl/152142
Define a new interactive function in go-mode.el called gofmt.
This function passes the current buffer through the external `gofmt`
tool and replaces the buffer with the result.
R=agl, rsc
https://golang.org/cl/154044
for keywords, built-ins, functions, and some types. It also
provides indentation that is (almost) identical to gofmt.
R=rsc
APPROVED=rsc
DELTA=509 (509 added, 0 deleted, 0 changed)
OCL=35951
CL=35994
better mach binaries.
cgo working on darwin+linux amd64+386.
eliminated context switches - pi is 30x faster.
add libcgo to build.
on snow leopard:
- non-cgo binaries work; all tests pass.
- cgo binaries work on amd64 but not 386.
R=r
DELTA=2031 (1316 added, 626 deleted, 89 changed)
OCL=35264
CL=35304
Ian Lance Taylor
Mohit Agarwal
Brad Fitzpatrick
Michael Hudson-Doyle
David Crawshaw
Michael Matloob
Hyang-Ah Hana Kim
Didier Spezia
Shenghou Ma
Rob Pike
Dave Cheney
Andrew Gerrand
Ingo Krabbe
Dmitry Vyukov
Russ Cox
Aaron Jacobs
Mikio Hara
Srdjan Petrovic
Alex Brainman
Burcu Dogan
Elias Naur
Aram Hăvărneanu
Josh Bleecher Snyder
Péter Surányi
Hyang-Ah Hana Kim
Austin Clements
Matthew Dempsky
David Symonds
Alan Donovan
Benoit Sigoure
Emil Hessman
Jens Frederich
Chris Manghane
Keith Randall
Hector Martin Cantero
ChaiShushan
snyh
David Crawshaw
Dominik Honnef
Shenghou Ma
Rui Ueyama
Daniel Morsing
David Barnett
Rowan Worth
Yasuhiro Matsumoto
Sameer Ajmani
Aulus Egnatius Varialus
Shivakumar GN
Aaron France
Alberto García Hierro
Kevin Klues
Alexandre Normand
David Bürgin
Charles Lee
Josh Hoak
Rémy Oudompheng
Anthony Martin
Bill Thiede
Andrew Wilkins
Jonathan Rudenberg
Andrey Mirtchovski
Carl Shapiro
Oling Cat
Robert Griesemer
Joe Poirier
Jeff R. Allen
Benny Siegert
Tyler Bunnell
Steven Elliot Harris
Francesc Campoy
Joel Sing
Vladimir Nikishenko
Andrew Radev
Tobias Columbus
Jean-Marc Eurin
Amir Mohammad Saied
Mats Lidell
Ryan Barrett
Peter Kleiweg
Mikkel Krautz
Ben Fried
Francisco Souza
Volker Dobler
Yissakhar Z. Beck
Olivier Duperray
Jongmin Kim
Gustavo Niemeyer
Florian Weimer
Robert Hencke
Maxim Pimenov
Paul Sbarra
Scott Lawrence
Bobby Powers
Anthony Starks
Evan Shaw
Jan Newmarch
Evan Martin
Wei Guangjing
Julian Phillips
Tarmigan Casebolt
Quan Yong Zhai
Eric Eisner
Alexander Orlov
Sameer Ajmani
Dmitry Chestnykh
Ross Light
Ryan Hitchman
Devon H. O'Dell
Graham Miller
Christian Himpel
Vincent Ambo
Kai Backman
Petar Maymounkov
James Whitehead
Adam Langley
Kevin Ballard
Austin Clements
Ken Friedenbach
Sergio Luis O. B. Correia
James Aguilar