Commit Graph

74 Commits

Author SHA1 Message Date
Andrew 8bbfc51d9a all: base64-encode binaries that will cause Apple notarization to fail
Starting with macOS 10.15 (Catalina), Apple now requires all software
distributed outside of the App Store to be notarized. Any binaries we
distribute must abide by a strict set of requirements like code-signing
and having a minimum target SDK of 10.9 (amongst others).

Apple’s notarization service will recursively inspect archives looking to
find notarization candidate binaries. If it finds a binary that does not
meet the requirements or is unable to decompress an archive, it will
reject the entire distribution. From cursory testing, it seems that the
service uses content sniffing to determine file types, so changing
the file extension will not work.

There are some binaries and archives included in our distribution that
are being detected by Apple’s service as potential candidates for
notarization or decompression. As these are files used by tests and some
are intentionally invalid, we don’t intend to ever make them compliant.

As a workaround for this, we base64-encode any binaries or archives that
Apple’s notarization service issues a warning for, as these warnings will
become errors in January 2020.

Updates #34986

Change-Id: I106fbb6227b61eb221755568f047ee11103c1680
Reviewed-on: https://go-review.googlesource.com/c/go/+/208118
Run-TryBot: Andrew Bonventre <andybons@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-11-21 14:55:12 +00:00
Tobias Klauser 33e3983db8 cmd/nm, runtime/cgo: add cgo support for freebsd/arm64
Based on work by Mikaël Urankar (@MikaelUrankar).

Updates #24715
Updates #35197

Change-Id: I91144101043d67d3f8444bf8389c9606abe2a66c
Reviewed-on: https://go-review.googlesource.com/c/go/+/199919
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-10-28 10:25:44 +00:00
Bryan C. Mills b3104fe3af Revert "cmd/go: fail if a test binary exits with no output"
This reverts CL 184457.

Reason for revert: introduced failures in the regression test for #18153.

Fixes #34791
Updates #29062

Change-Id: I4040965163f809083c023be055e69b1149d6214e
Reviewed-on: https://go-review.googlesource.com/c/go/+/200106
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-10-09 20:30:46 +00:00
Daniel Martí 1fba10c999 cmd/go: fail if a test binary exits with no output
For example, if a test calls os.Exit(0), that could trick a 'go test'
run into not running some of the other tests, and thinking that they all
succeeded. This can easily go unnoticed and cause developers headaches.

Add a simple sanity check as part of 'go test': if the test binary
succeeds and doesn't print anything, we should error, as something
clearly went very wrong.

This is done by inspecting each of the stdout writes from the spawned
process, since we don't want to read the entirety of the output into a
buffer. We need to introduce a "buffered" bool var, as there's now an
io.Writer layer between cmd.Stdout and &buf.

A few TestMain funcs in the standard library needed fixing, as they
returned without printing anything as a means to skip testing the entire
package. For that purpose add testenv.MainMust, which prints a warning
and prints SKIP, similar to when -run matches no tests.

Finally, add tests for both os.Exit(0) and os.Exit(1), both as part of
TestMain and as part of a single test, and test that the various stdout
modes still do the right thing.

Fixes #29062.

Change-Id: Ic6f8ef3387dfc64e4cd3e8f903d7ca5f5f38d397
Reviewed-on: https://go-review.googlesource.com/c/go/+/184457
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2019-10-09 15:07:29 +00:00
Cherry Zhang cc5eaf9346 cmd/internal/obj: write package path at compile time if possible
Currently, when the compiler emits a symbol name in the object
file, it uses "". for the package path of the package being
compiled. This is then expanded in the linker to the actual
package path.

With CL 173938, it does not need an allocation if the symbol name
does not need expansion. In many cases, the compiler actually
knows the package path (through the -p flag), so we could just
write it out in compile time, without fixing it up in the linker.
This reduces allocations in the linker.

In case that the package path is not known (compiler's -p flag is
missing, or the object file is generated by the assembler), the
linker still does the expansion.

This reduces ~100MB allocations (~10% inuse_space) in linking
k8s.io/kubernetes/cmd/kube-apiserver on Linux/AMD64.

Also makes the linker a little faster: linking cmd/go on
Linux/AMD64:
Real  1.13 ± 1%  1.11 ± 1%  -2.13%  (p=0.000 n=10+10)
User  1.17 ± 3%  1.14 ± 5%  -3.14%  (p=0.003 n=10+10)
Sys   0.34 ±15%  0.34 ±15%    ~     (p=0.986 n=10+10)

The caveat is that the object files get slightly bigger. On
Linux/AMD64, runtime.a gets 2.1% bigger, cmd/compile/internal/ssa
(which has a longer import path) gets 2.8% bigger.

This reveals that when building an unnamed plugin (e.g.
go build -buildmode=plugin x.go), the go command passes different
package paths to the compiler and to the linker. Before this CL
there seems nothing obviously broken, but given that the compiler
already emits the package's import path in various places (e.g.
debug info), I guess it is possible that this leads to some
unexpected behavior. Now that the compiler writes the package
path in more places, this disagreement actually leads to
unresolved symbols. Adjust the go command to use the same package
path for both compiling and linking.

Change-Id: I19f08981f51db577871c906e08d9e0fd588a2dd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/174657
Reviewed-by: Austin Clements <austin@google.com>
2019-05-06 18:17:03 +00:00
Joel Sing 998cc2a1c5 cmd,runtime: enable cgo for openbsd/arm64
Updates #31656.

Change-Id: Ide6f829282fcdf20c67998b766a201a6a92c3035
Reviewed-on: https://go-review.googlesource.com/c/go/+/174132
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-04-29 23:06:59 +00:00
Clément Chigot 1b5b08d10a cmd/nm: fix cgo tests for aix/ppc64
This commit handles AIX cgo in cmd/nm tests.

Change-Id: I6753a0102e4f2c4c7bd4d7c999f62a0cb3d2183c
Reviewed-on: https://go-review.googlesource.com/c/go/+/164017
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-20 13:50:44 +00:00
Bryan C. Mills 0271d41ed6 internal/testenv: remove SetModVendor
It turns out not to be necessary. Russ expressed a preference for
avoiding module fetches over making 'go mod tidy' work within std and
cmd right away, so for now we will make the loader use the vendor
directory for the standard library even if '-mod=vendor' is not set
explicitly.

Updates #30228

Change-Id: Idf7208e63da8cb7bfe281b93ec21b61d40334947
Reviewed-on: https://go-review.googlesource.com/c/go/+/166357
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-03-08 23:40:24 +00:00
Bryan C. Mills 9670e81c2e all: add -mod=vendor to GOFLAGS in tests that execute 'go' commands within std or cmd
Updates #30228
Updates #30240
Updates #30241

Change-Id: Idc311ba77e99909318b5b86f8ef82d4878f73e47
Reviewed-on: https://go-review.googlesource.com/c/go/+/165378
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-03-05 18:21:29 +00:00
Bryan C. Mills 8827147932 cmd/nm: fix testGoLib helper to be module-agnostic
Updates #30228

Change-Id: I3c7864e6725312df5ec978cdc130ccfe8fc2e738
Reviewed-on: https://go-review.googlesource.com/c/162836
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-19 20:53:59 +00:00
Jordan Rhee 26985ed4a5 cmd/nm: report windows/arm as relocatable in TestGoExec
Updates #26148

Change-Id: I704efafca39e4397caf2db0146d83d309c761dd1
Reviewed-on: https://go-review.googlesource.com/c/154357
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-15 04:18:21 +00:00
Ian Lance Taylor 9b95035654 cmd/nm: run tests in parallel, don't use Scanner on []byte
Saves about 35% on total test time on my laptop.

Fixes #26471

Change-Id: I15b28b1bc00f889934d577dc7996864bbab10105
Reviewed-on: https://go-review.googlesource.com/c/153499
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-12-11 03:36:22 +00:00
Clément Chigot e256afff51 all: move cmd/internal/xcoff to internal/xcoff
This commit moves cmd/internal/xcoff package to internal/xcoff because
it will be needed to add XCOFF support in go/internal/gccgoimporter.

Change-Id: Id12df0c438fb7db4a6a458fc1478480851bf7771
Reviewed-on: https://go-review.googlesource.com/c/152719
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-12-10 18:52:31 +00:00
Clément Chigot 49dafc70c8 cmd: add XCOFF objfile and adapt cmd/nm tests
This commit adds a new file format in cmd/internal/objfile for XCOFF.
It also adapts tests inside cmd/nm for AIX.

Updates: #25893

Change-Id: I1e55ea0b7f7d08a871343bee27d11e2d3baad254
Reviewed-on: https://go-review.googlesource.com/c/145397
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-10-31 13:47:42 +00:00
David du Colombier 92f8acd192 cmd/nm: fix TestGoExec on Plan 9
CL 115975 changed TestGoExec to check symbol types.
However, this test is failing on Plan 9, because
there is no read-only data segment symbol on Plan 9.

This change fixes TestGoExec to replace the check
of read-only data segment symbol (R) by data segment
symbol (D) on Plan 9.

Fixes #25820.

Change-Id: I7164cd9056fa1dfcd1dc1b0f87653290c14c85fa
Reviewed-on: https://go-review.googlesource.com/118035
Run-TryBot: David du Colombier <0intro@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-11 20:58:09 +00:00
Alex Brainman d67db88146 cmd/link: split pe .text section into .text and .rdata
Fixes #24725

Change-Id: I2864b88315ab15be036e8940d0a5884d876698d6
Reviewed-on: https://go-review.googlesource.com/115975
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-09 07:34:45 +00:00
Cherry Zhang 7bd0b61000 cmd/internal/goobj: accept int64 in readInt
The counter part, writeInt in cmd/internal/obj, writes int64s.
So the reader side should also read int64s. This may cause a
larger range of values being accepted, some of which should
not be that large. This is probably ok: for example, for
size/index/length, the very large value (due to corruption)
may be well past the end and causes other errors. And we did
not do much bound check anyway.

One exmaple where this matters is ARM32's object file. For one
type of relocation it encodes the instruction into Reloc.Add
field (which itself may be problematic and worth fix) and the
instruction encoding overflows int32, causing ARM32 object
file being rejected by goobj (and so objdump and nm) before.

Unskip ARM32 object file tests in goobj, nm, and objdump.

Updates #19811.

Change-Id: Ia46c2b68df5f1c5204d6509ceab6416ad6372315
Reviewed-on: https://go-review.googlesource.com/69010
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2017-11-01 18:23:58 +00:00
Ian Lance Taylor c99cfd93a8 cmd/link: don't use internal linking mode for cgo on PPC64
The internal linker doesn't know how to handle multiple TOC sections
in internal linking mode. This used to work because before CL 64793 we
invoked ld -r on multiple objects, and that merged the TOC sections
for us.

Updates #21961

Change-Id: I48260a7195be660016f2f358ebc8cb79652210ab
Reviewed-on: https://go-review.googlesource.com/66270
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-09-26 15:06:32 +00:00
Hiroshi Ioka 2f7b57e9d8 cmd/nm: accept macho files which don't have symbol table in the archive
After https://golang.org/cl/64793, we started to include Mach-O object
files which don't have symbol table into cgo archive.
However, toolchains didn't handle those files yet.

Fixes #21959

Change-Id: Ibb2f6492f1fa59368f2dfd4cff19783997539875
Reviewed-on: https://go-review.googlesource.com/65170
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-09-21 19:17:33 +00:00
Hiroshi Ioka 589ea93678 cmd/nm: handle cgo archive
This CL also make cmd/nm accept PE object file.

Fixes #21706

Change-Id: I4a528b7d53da1082e61523ebeba02c4c514a43a7
Reviewed-on: https://go-review.googlesource.com/64890
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-09-21 01:01:44 +00:00
Hiroshi Ioka 822f832d29 cmd/nm: add test case for go archives
Also, rename some test cases, check (*os.File).Close

For #21706

Change-Id: Ie60c4d345b2259736c823dc6001c08affcdd86e7
Reviewed-on: https://go-review.googlesource.com/64510
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-09-20 03:46:41 +00:00
Josh Bleecher Snyder 785cb7e098 all: fix some printf format strings
Appease vet.

Change-Id: Ie88de08b91041990c0eaf2e15628cdb98d40c660
Reviewed-on: https://go-review.googlesource.com/36938
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-14 02:09:30 +00:00
Jaana Burcu Dogan 60d7d247a1 cmd/nm: extend help text to document the flags
Change-Id: Ia2852666ef44e7ef0bba2360e92caccc83fd0e5c
Reviewed-on: https://go-review.googlesource.com/36796
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-11 08:47:58 +00:00
Alex Brainman 769be04feb cmd/nm: skip TestInternalLinkerCgoFile if no internal linking is supported
Fixes build.

Change-Id: I2fee624c8a4b228bb9f2889e241ea016a317bb11
Reviewed-on: https://go-review.googlesource.com/36373
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-02-04 06:53:29 +00:00
Alex Brainman c7a7c5a9b4 cmd/link: do not prefix external symbols with underscore on windows/386/cgo
CL 18057 added underscore to most external pe symbols
on windows/386/cgo. The CL changed runtime.epclntab and
runtime.pclntab pe symbols into _runtime.pclntab and
_runtime.epclntab, and now cmd/nm cannot find them.
Revert correspondent CL 18057 changes, because most pe
symbols do not need underscore prefix.

This CL also removes code that added obj.SHOSTOBJ symbols
explicitly, because each of those was also added via
genasmsym call. These created duplicate pe symbols (like
_GetProcAddress@8 and __GetProcAddress@8), and external
linker would complain.

This CL adds new test in cmd/nm to verify go programs
built with cgo.

Fixes #18416

Change-Id: I68b1be8fb631d95ec69bd485c77c79604fb23f26
Reviewed-on: https://go-review.googlesource.com/35076
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-02-04 05:56:45 +00:00
Brad Fitzpatrick ad26bb5e30 all: use sort.Slice where applicable
I avoided anywhere in the compiler or things which might be used by
the compiler in the future, since they need to build with Go 1.4.

I also avoided anywhere where there was no benefit to changing it.

I probably missed some.

Updates #16721

Change-Id: Ib3c895ff475c6dec2d4322393faaf8cb6a6d4956
Reviewed-on: https://go-review.googlesource.com/30250
TryBot-Result: Gobot Gobot <gobot@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
2016-10-04 05:10:56 +00:00
Keith Randall 842b05832f all: use testing.GoToolPath instead of "go"
This change makes sure that tests are run with the correct
version of the go tool.  The correct version is the one that
we invoked with "go test", not the one that is first in our path.

Fixes #16577

Change-Id: If22c8f8c3ec9e7c35d094362873819f2fbb8559b
Reviewed-on: https://go-review.googlesource.com/28089
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-30 22:49:11 +00:00
Brad Fitzpatrick 519474451a all: make copyright headers consistent with one space after period
This is a subset of https://golang.org/cl/20022 with only the copyright
header lines, so the next CL will be smaller and more reviewable.

Go policy has been single space after periods in comments for some time.

The copyright header template at:

    https://golang.org/doc/contribute.html#copyright

also uses a single space.

Make them all consistent.

Change-Id: Icc26c6b8495c3820da6b171ca96a74701b4a01b0
Reviewed-on: https://go-review.googlesource.com/20111
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-01 23:34:33 +00:00
Russ Cox 7bc3e58806 all: extract "can I exec?" check from tests into internal/testenv
Change-Id: I7b54be9d8b50b39e01c6be21f310ae9a10404e9d
Reviewed-on: https://go-review.googlesource.com/10753
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-06-16 18:07:36 +00:00
David Crawshaw bbbbca78a6 cmd/nm: skip fork test on darwin/arm64
Just like darwin/arm.

Change-Id: Iabb6282f18548da43117ee60f7ad6e272502f09d
Reviewed-on: https://go-review.googlesource.com/8825
Reviewed-by: Minux Ma <minux@golang.org>
2015-04-12 11:52:22 +00:00
David Crawshaw b015cf7083 cmd/nm: exclude Go tool test on darwin/arm
Change-Id: I44f1240a766f20de5997faca4f13f96af6da3534
Reviewed-on: https://go-review.googlesource.com/6190
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2015-02-26 23:07:27 +00:00
Russ Cox 220a6de47e build: adjustments for move from src/pkg to src
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
2014-09-08 00:06:45 -04:00
Russ Cox 08033f9816 cmd/addr2line, cmd/nm: factor object reading into cmd/internal/objfile
To do in another CL: make cmd/objdump use cmd/internal/objfile too.

There is a package placement decision in this CL:
cmd/internal/objfile instead of internal/objfile.
I chose to put internal under cmd to make clear (and enforce)
that no standard library packages should use this
(it's a bit dependency-heavy).

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/123910043
2014-08-07 12:33:06 -04:00
David Crawshaw b157077e34 cmd/nm: skip test on android (no Go tool)
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/107590043
2014-07-08 13:44:41 -04:00
Russ Cox 0c2a727477 build: make nacl pass
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
2014-05-20 12:10:19 -04:00
Russ Cox 8e22903b46 cmd/nm, cmd/objdump: fix elf symbol types
Turns out elf.File.Sections is indexed by the actual
section number, not the number minus one.
I don't know why I thought the -1 was necessary.

Fixes objdump test (and therefore build) on ELF systems.

While we're here, fix bounds on gnuDump so that we
don't crash when asked to disassemble outside
the text segment. May fix Windows build or at least
make the failure more interesting.

TBR=iant
CC=golang-codereviews
https://golang.org/cl/92390043
2014-05-14 17:45:13 -07:00
Alex Brainman 2a7ab1616f cmd/nm: do not write to GOROOT testdata directories during TestNM
LGTM=bradfitz
R=bradfitz, 0intro
CC=golang-codereviews
https://golang.org/cl/95280043
2014-05-12 09:26:05 +10:00
Alex Brainman 296eeaa78d cmd/nm: do not fail TestNM if symbol has less then 3 columns in nm output
Fixes #7829

LGTM=dave
R=golang-codereviews, aram, dave
CC=golang-codereviews
https://golang.org/cl/89830043
2014-04-21 21:12:18 +10:00
Alex Brainman 6a40d549f1 cmd/nm: disable TestNM on darwin, linux and solaris
Update #7829

LGTM=dave
R=golang-codereviews, dave
CC=golang-codereviews
https://golang.org/cl/89810043
2014-04-21 20:36:35 +10:00
Alex Brainman 80e7f97206 cmd/ld: correct addresses in windows pe symbol table
This should have been part of 36eb4a62fbb6,
but I later discovered that addresses are all wrong.
Appropriate test added now.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/89470043
2014-04-21 19:28:02 +10:00
Alex Brainman 6e8c7f5bb2 cmd/nm: print symbol sizes for windows pe executables
Fixes #6973

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/88820043
2014-04-19 14:47:20 +10:00
Alex Brainman 06dc4e78c4 cmd/nm: windows pe handling fixes
- output absolute addresses, not relative;
- accept negative section numbers.

Update #6936
Fixes #7738

LGTM=rsc
R=golang-codereviews, bradfitz, ruiu, rsc
CC=golang-codereviews
https://golang.org/cl/85240046
2014-04-16 22:17:38 -04:00
David du Colombier 021c11683c debug/plan9obj: implement parsing of Plan 9 a.out executables
It implements parsing of the header and symbol table for both
32-bit and 64-bit Plan 9 binaries. The nm tool was updated to
use this package.

R=rsc, aram
CC=golang-codereviews
https://golang.org/cl/49970044
2014-01-22 23:30:52 +01:00
Rob Pike fca453e062 cmd/nm: add -sort=size
When printing the size, we often want to sort on that key.
Because it's used when looking for large things, make the
sort go from largest to smallest.

Perfect recreation of CL 45150044, which was lost to some blunder.

R=golang-codereviews, gobot, rsc
CC=golang-codereviews
https://golang.org/cl/48500044
2014-01-08 15:56:40 -08:00
Martin Olsson 5499034a71 all: fix a few spelling errors in source comments
R=golang-codereviews, dave, iant
CC=golang-codereviews
https://golang.org/cl/45750044
2013-12-27 08:59:02 -08:00
Russ Cox f48120ef51 cmd/nm: minor cleanup from previous CL
I forgot to apply Ian's suggestions before submitting CL 40600043.

R=iant
CC=golang-dev
https://golang.org/cl/43560045
2013-12-18 13:29:40 -05:00
Russ Cox 500547f28b cmd/nm: reimplement in Go
The immediate goal is to support the new object file format,
which libmach (nm's support library) does not understand.
Rather than add code to libmach or reengineer liblink to
support this new use, just write it in Go.

The C version of nm reads the Plan 9 symbol table stored in
Go binaries, now otherwise unused.

This reimplementation uses the standard symbol table for
the corresponding file format instead, bringing us one step
closer to removing the Plan 9 symbol table from Go binaries.

Tell cmd/dist not to build cmd/nm anymore.
Tell cmd/go to install cmd/nm in the tool directory.

R=golang-dev, r, iant, alex.brainman
CC=golang-dev
https://golang.org/cl/40600043
2013-12-16 12:52:11 -05:00
Russ Cox 00061219f0 cmd/nm: make -S listing a bit more accurate
Hide container symbols like text and etext so that
the individual pieces inside are shown instead.
For example, if text and main.init have the same
address, it was a toss-up which name was printed.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/13722046
2013-09-16 20:27:57 -04:00
Rob Pike 2ec53b0705 cmd/nm: put the -S flag in the usage message
The -S flag reports symbol size, but is missing from the usage message.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/13660046
2013-09-16 16:13:27 +10:00
Anthony Martin 272687ec24 cmd/nm: don't add filename elements for m symbols
The compilers used to generate only one 'm' symbol
to record the stack frame size for each function.

In cmd/nm, the 'm' and 'f' symbols are handled in
the same switch case with a special exception for
the symbol described above called ".frame".

Now that the compilers emit additional 'm' symbols
for precise garbage collection of the stack, the
current logic is incorrect. cmd/nm will attempt to
interpret these new 'm' symbols as 'f' symbols and
add them to the file name index table.

This fails with an out-of-memory condition when
zenter encounters an 'm' symbol with a very large
value (usually the .args symbol indicating a
variadic NOSPLIT function).

R=iant
CC=dave, gobot, golang-dev, rsc
https://golang.org/cl/7962045
2013-04-03 18:23:43 -07:00