Per recommendation from imgtec.com folk.
Change-Id: I9b6f30572f257acce59842ac55362f52fe36c5ab
Reviewed-on: https://go-review.googlesource.com/33804
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Also change a couple of `go get` tests to use MustHaveExternalNetwork
rather than checking testing.Short.
Change-Id: I98ccc05b8b0354f1b7486e28dac5f8341c342a07
Reviewed-on: https://go-review.googlesource.com/33802
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This file is entirely about the implementation of LineHist, and I can
never remember which generic filename in cmd/internal/obj has it.
Rename to line.go to match the already existing line_test.go.
Change-Id: Id01f3339dc550c9759569d5610d808b17bca44d0
Reviewed-on: https://go-review.googlesource.com/33803
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This was a regression from 1.7. See the issue for details.
Fixes#18149.
Change-Id: Ic8f5a35d14edf9254b1275400316cff7aff32a27
Reviewed-on: https://go-review.googlesource.com/33799
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
func f() {
g()
}
We mistakenly don't add a frame pointer for f. This means f
isn't seen when walking the frame pointer linked list. That
matters for kernel-gathered profiles, and is an impediment for
issues like #16638.
To fix, allocate a stack frame even for otherwise frameless functions
like f. It is a bit tricky because we need to avoid some runtime
internals that really, really don't want one.
No test at the moment, as only kernel CPU profiles would catch it.
Tests will come with the implementation of #16638.
Fixes#18103
Change-Id: I411206cc9de4c8fdd265bee2e4fa61d161ad1847
Reviewed-on: https://go-review.googlesource.com/33754
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Now the net tests pass with -gcflags '-l=4'.
Fixes#18125.
Change-Id: I4e3a46eb0cb3a93b203e74f5bc99c5822331f535
Reviewed-on: https://go-review.googlesource.com/33722
Reviewed-by: Keith Randall <khr@golang.org>
... so we don't have to export gosym.PCValue.
Change-Id: Ie8f196d5e5ab63e3e69d1d7b4bfbbf32b7b5e4f5
Reviewed-on: https://go-review.googlesource.com/33791
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
so that our release note can reference a simple command to check if
the processor implements ARMv6K or not.
Updates #17082.
Change-Id: I9ca52051e5517394a7cd6b778fb822c3ee435f84
Reviewed-on: https://go-review.googlesource.com/33686
Run-TryBot: Minux Ma <minux@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This fixes a bug in -l=3 or higher.
To inline a variadic function, the compiler generates code that constructs
a slice of arguments for the variadic parameter. Consider the function
func Foo(xs ...string)
and the call Foo("hello", "world"). To inline the call to Foo, the
compiler used to generate
xs := [2]string{"hello", "world"}[:]
which doesn't type check:
invalid operation [2]string literal[:] (slice of unaddressable value).
Now, the compiler generates
xs := []string{"hello", "world"}
which does type check.
Fixes#18116.
Change-Id: I0ee531ef2e6cc276db6fb12602b25a46d6d5db21
Reviewed-on: https://go-review.googlesource.com/33671
Reviewed-by: Keith Randall <khr@golang.org>
The doc field is not yet used - remove it for now (we may end up
with a different solution for 1.9). This reduces memory consumption
for parsing all of std lib by about 40MB and makes parsing slightly
faster.
Change-Id: Iafb00b9c7f1be9c66fdfb29096d3da5049b2fcf5
Reviewed-on: https://go-review.googlesource.com/33661
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Also refactor common position filling code into a function.
Fixes#18011
Change-Id: I76528626da67a7309193fa92af1e361c8e2fcf84
Reviewed-on: https://go-review.googlesource.com/33631
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Tested by running
GOTRACEBACK=2 CGO_CFLAGS="-Wa,--elf-stt-common=yes" go test -ldflags=-linkmode=internal
in misc/cgo/test. That failed before this CL, succeeded after.
I don't think it's worth doing that as a regular test, though,
especially since only recent versions of the GNU binutils support the
--elf-stt-common option.
Fixes#18088.
Change-Id: I893d86181faee217b1504c054b0ed3f7c8d977d3
Reviewed-on: https://go-review.googlesource.com/33653
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The element index needs to be placed in From3. Before this CL it
was impossible to write a VSTE instruction that could be
successfully parsed, so this won't affect existing assembly code.
Fixes#18075.
Change-Id: I5b71be4c6632b1d5a30820a529122f96fd1bc864
Reviewed-on: https://go-review.googlesource.com/33584
Run-TryBot: Michael Munday <munday@ca.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bill O'Farrell <billotosyr@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This changes makes the output of `go env` the same
as on other operating systems.
Fixes#18013.
Change-Id: I3079e14dcf7b30c75ec3fde6c78cb95721111320
Reviewed-on: https://go-review.googlesource.com/33396
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
When CC is set in the environment, the mkEnv function sets its version
of CC to the first word $CC and sets GOGCCFLAGS to the remainder. That
worked since Go 1 but was broken accidentally by
https://golang.org/cl/6409, which changed the code such that `go env`
calls mkEnv twice. The second call to mkEnv would clobber GOGCCFLAGS
based on the value of CC set by the first call. Go back to the old
handling by only calling mkEnv once.
Fixes#15457.
Change-Id: I000a1ebcc48684667e48f2b9b24605867b9e06cd
Reviewed-on: https://go-review.googlesource.com/33293
Reviewed-by: Russ Cox <rsc@golang.org>
Introduce R_WEAKADDROFF, a "weak" variation of the R_ADDROFF relocation
that will only reference the type described if it is in some other way
reachable.
Use this for the ptrToThis field in reflect type information where it
is safe to do so (that is, types that don't need to be included for
interface satisfaction, and types that won't cause the compiler to
recursively generate an endless series of ptr-to-ptr-to-ptr-to...
types).
Also fix a small bug in reflect, where StructOf was not clearing the
ptrToThis field of new types.
Fixes#17931
Change-Id: I4d3b53cb9c916c97b3b16e367794eee142247281
Reviewed-on: https://go-review.googlesource.com/33427
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Change-Id: If754de6c44cf0ec4192101432e4065cc7a28e862
Reviewed-on: https://go-review.googlesource.com/33425
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
The gccgo compiler does not have the standard packages available, so it
can not check for violations of internal references.
Also, the gccgo compiler can not read runtime/internal/sys/zversion.go;
in fact, the file does not even exist for gccgo.
Change-Id: Ibadf16b371621ad1b87b6e858c5eb233913e179d
Reviewed-on: https://go-review.googlesource.com/33295
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
So we can merge cover profiles from multiple runs.
Change-Id: I1bf921e2b02063a2a62b35d21a6823062d10e5d0
Reviewed-on: https://go-review.googlesource.com/23831
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
Currently, trace processing interleaves state/statistics updates and
emitting trace viewer objects. As a result, if events are being
filtered, either by time or by goroutines, we'll miss those
state/statistics updates. At best, this leads to bad statistics;
however, since we're now strictly checking G state transitions, it
usually leads to a failure to process the trace if there is any
filtering.
Fix this by separating state updates from emitting trace object. State
updates are done before filtering, so we always have correct state
information and statistics. Trace objects are only emitted if we pass
the filter. To determine when we need to emit trace counters, rather
than duplicating the knowledge of which events might modify
statistics, we keep track of the previously emitted counters and emit
a trace counter object whenever these have changed.
Fixes#17719.
Change-Id: Ic66e3ddaef60d1acaaf2ff4c62baa5352799cf99
Reviewed-on: https://go-review.googlesource.com/32810
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
The table of rewrites in ssa/cse is not sized appropriately for
ssa IDs that are created during copying of selects into new blocks.
Fixes#17918
Change-Id: I65fe86c6aab5efa679aa473aadc4ee6ea882cd41
Reviewed-on: https://go-review.googlesource.com/33240
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The top-level qualifiers are unimportant for our purposes. If a C
function is defined as `const int f(const int i)`, the `const`s are
meaningless to C, and we want to avoid using them in the struct we
create where the `const` has a completely different meaning.
This unwinds https://golang.org/cl/33097 with regard to top-level
qualifiers.
Change-Id: I3d66b0eb43b6d9a586d9cdedfae5a2306b46d96c
Reviewed-on: https://go-review.googlesource.com/33325
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
It's possible for the pkgPath of a field to be different than that of
the struct type as a whole. In that case, store the field's pkgPath in
the name field. Use the field's pkgPath when setting PkgPath and when
checking for type identity.
Fixes#17952.
Change-Id: Iebaf92f0054b11427c8f6e4158c3bebcfff06f45
Reviewed-on: https://go-review.googlesource.com/33333
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Failing to create the output file would give confusing errors such as:
cover: invalid argument
Also do out.Close() even if Execute() errored.
Fixes#17951.
Change-Id: I897e1d31f7996871c54fde7cb09614cafbf6c3fc
Reviewed-on: https://go-review.googlesource.com/33278
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Autotmp filtering was too aggressive and excluded types
necessary to make debuggers work properly. Restore the
"late filter" in dwarf.go based on names to exclude autotmps,
and remove the "early filter" in pgen.go based on how the
name was introduced. However, the updated naming scheme
with a dot prefix is retained to prevent accidental clashes
with legal Go identifier names.
Includes test (grouped with runtime gdb tests),
verified to fail without the fix.
Updates #17644.
Fixes#17830.
Change-Id: I7ec3f7230083889660236e5f6bc77ba5fe434e93
Reviewed-on: https://go-review.googlesource.com/33233
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
The assembler backend fixes too-far conditional branches, but only
for BEQ and like. Add a case for CBZ and like.
Fixes#17925.
Change-Id: Ie516e6c5ca165b582367283a0110f7081e00c214
Reviewed-on: https://go-review.googlesource.com/33304
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
These don't use any flags in TestMain itself, so the call is redundant
as M.Run will do it.
Change-Id: I00f2ac7f846dc2c3ad3535eb8177616b2d900149
Reviewed-on: https://go-review.googlesource.com/33275
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
To generate the correct section offset the shared code path for
R_CALL, R_PCREL, and R_GOTPCREL on darwin when externally linking
walks up the symbol heirarchy adding the differences. This is fine,
except in the case where we are generating a GOT lookup, because
the topmost symbol is left in r.Xsym instead of the symbol we are
looking up. So all funcsym GOT lookups were looking up the outer
"go.func.*" symbol.
Fix this by separating out the R_GOTPCREL code path.
For #17828 (and may fix it).
Change-Id: I2c9f4d135e77c17270aa064d8c876dc6d485d659
Reviewed-on: https://go-review.googlesource.com/33211
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
The use of these has been removed in recent commits.
Change-Id: Iff36a3ee4dcdfe39c40e93e2601f44d3c59f7024
Reviewed-on: https://go-review.googlesource.com/33274
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Add an explicit WriteString method to closeOnce that acquires the
writers lock. This overrides the one promoted from the
embedded *os.File field. The promoted one naturally does not acquire
the lock, and can therefore race with the Close method.
Fixes#17647.
Change-Id: I3460f2a0d503449481cfb2fd4628b4855ab0ecdf
Reviewed-on: https://go-review.googlesource.com/33298
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
If a C union type (or a C++ class type) can contain a pointer field,
then run the cgo checks on pointers to that type. This will test the
pointer as though it were an unsafe.Pointer, and will crash if it points
to Go memory that contains a pointer.
Fixes#15942.
Change-Id: Ic2d07ed9648d4b27078ae7683e26196bcbc59fc9
Reviewed-on: https://go-review.googlesource.com/33237
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
In plugins and every program that opens a plugin, include a hash of
every imported package.
There are two versions of each hash: one local and one exported.
As the program starts and plugins are loaded, the first exported
symbol for each package becomes the canonical version.
Any subsequent plugin's local package hash symbol has to match the
canonical version.
Fixes#17832
Change-Id: I4e62c8e1729d322e14b1673bada40fa7a74ea8bc
Reviewed-on: https://go-review.googlesource.com/33161
Reviewed-by: Ian Lance Taylor <iant@golang.org>
These are functionality tests, not formatter tests.
I also tested manually that 'go test cmd/go'
without -short still passes.
Change-Id: Id146e1dc3b65e19ea531869725cd0b97f4801b8b
Reviewed-on: https://go-review.googlesource.com/33169
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Brad Fitzpatrick
Ian Lance Taylor
Matthew Dempsky
Robert Griesemer
Keith Randall
David Lazar
Mohit Agarwal
Shenghou Ma
Chris Broadfoot
Russ Cox
Kevin Burke
Dhananjay Nakrani
Michael Munday
David du Colombier
David Crawshaw
Austin Clements
Philip Hofer
Cherry Zhang
Daniel Martí
David Chase
Josh Bleecher Snyder
Patrick Lee
Vladimir Stefanovic