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Commit Graph

55 Commits

Author SHA1 Message Date
Ian Lance Taylor
0a129dbca6 misc/cgo/testcshared: use file descriptor 30 for TestUnexportedSymbols
We were using file descriptor 100, which requires the Linux kernel to
grow the fdtable size. That step may sometimes require a long time,
causing the test to fail. Switch to file descriptor 30, which should
not require growing the fdtable.

Fixes #23784

Change-Id: I3ac40d6f8569c70d34b470cfca34eff149bf8229
Reviewed-on: https://go-review.googlesource.com/108537
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2018-04-21 04:18:51 +00:00
Tim Wright
88129f0cb2 all: enable c-shared/c-archive support for freebsd/amd64
Fixes #14327
Much of the code is based on the linux/amd64 code that implements these
build modes, and code is shared where possible.

Change-Id: Ia510f2023768c0edbc863aebc585929ec593b332
Reviewed-on: https://go-review.googlesource.com/93875
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-21 21:56:20 +00:00
Ian Lance Taylor
3773cbba72 misc/cgo/testcshared: increase sleep in TestUnexportedSymbols
Increase the sleep and wait for up to 2 seconds for the dup2.
Apparently it can sometimes take a long time.

Fixes #23784

Change-Id: I929530b057bbcd842b28a7640c39dd68d719ff7d
Reviewed-on: https://go-review.googlesource.com/93895
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-02-14 15:03:29 +00:00
Elias Naur
919e85ae05 misc,src: add support for specifying adb flags to the android harness
Introduce GOANDROID_ADB_FLAGS for additional flags to adb invocations.
With GOANDROID_ADG_FLAGS, the Android builders can distinguish between
emulator and device builds.

Change-Id: I11729926a523ee27f6a3795cb2cfb64a9454f0a5
Reviewed-on: https://go-review.googlesource.com/88795
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-01-20 21:13:30 +00:00
Ian Lance Taylor
1c0d5427de cmd/go: correct buildmode test (from "c-header" to "c-shared")
Change-Id: I8688a47ae83f6719f6134c64fb3d3f2aa275c641
Reviewed-on: https://go-review.googlesource.com/87158
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-01-11 19:24:35 +00:00
Russ Cox
8f70e1f8a9 cmd/go: do not install dependencies during "go install"
This CL makes "go install" behave the way many users expect:
install only the things named on the command line.
Future builds still run as fast, thanks to the new build cache (CL 75473).
To install dependencies as well (the old behavior), use "go install -i".

Actual definitions aside, what most users know and expect of "go install"
is that (1) it installs what you asked, and (2) it's fast, unlike "go build".
It was fast because it installed dependencies, but installing dependencies
confused users repeatedly (see for example #5065, #6424, #10998, #12329,
"go build" and "go test" so that they could be "fast" too, but that only
created new opportunities for confusion. We also had to add -installsuffix
and then -pkgdir, to allow "fast" even when dependencies could not be
installed in the usual place.

The recent introduction of precise content-based staleness logic means that
the go command detects the need for rebuilding packages more often than it
used to, with the consequence that "go install" rebuilds and reinstalls
dependencies more than it used to. This will create more new opportunities
for confusion and will certainly lead to more issues filed like the ones
listed above.

CL 75743 introduced a build cache, separate from the install locations.
That cache makes all operations equally incremental and fast, whether or
not the operation is "install" or "build", and whether or not "-i" is used.

Installing dependencies is no longer necessary for speed, it has confused
users in the past, and the more accurate rebuilds mean that it will confuse
users even more often in the future. This CL aims to end all that confusion
by not installing dependencies by default.

By analogy with "go build -i" and "go test -i", which still install
dependencies, this CL introduces "go install -i", which installs
dependencies in addition to the things named on the command line.

Fixes #5065.
Fixes #6424.
Fixes #10998.
Fixes #12329.
Fixes #18981.
Fixes #22469.

Another step toward #4719.

Change-Id: I3d7bc145c3a680e2f26416e182fa0dcf1e2a15e5
Reviewed-on: https://go-review.googlesource.com/75850
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2017-11-03 22:09:46 +00:00
Ian Lance Taylor
24f9db7c20 misc/cgo/testcshared: don't overwrite cc in parallel runs
Fixes #22176

Change-Id: If47ec9a25da6b480868d8eeccc518dc97d48bda7
Reviewed-on: https://go-review.googlesource.com/69230
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-10-09 05:31:01 +00:00
Alex Brainman
e8a27daaef misc/cgo/testcshared: use correct install directory on windows
Updates #11058

Change-Id: I2a8bf4403b680ab8bf06fff18291f3bf67261e27
Reviewed-on: https://go-review.googlesource.com/69090
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2017-10-08 23:37:17 +00:00
Alex Brainman
35483c8e25 misc/cgo/testcshared: delete testp0.exe not testp0 file
Otherwise we end up with testp?.exe files after the tests run.

Updates #11058

Change-Id: Ieccfc42da6192622bdab1f9a411ccd50bb59fd5b
Reviewed-on: https://go-review.googlesource.com/68770
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-07 03:39:18 +00:00
Alex Brainman
7e31d9b9f7 misc/cgo/testcshared: skip all but TestExportedSymbols on windows
TestUnexportedSymbols requires dup2 that
my gcc installation does not have.

TestSignalHandlersWithNotify fails with:
undefined: syscall.SIGIO.

TestSignalHandlers fails with:
sched.h: No such file or directory.

TestExportedSymbolsWithDynamicLoad fails with:
dlfcn.h: No such file or directory.

Also add t.Helper calls to better error messages.

Updates #11058

Change-Id: I7eb514968464256b8337e45f57fcb7d7fe0e4693
Reviewed-on: https://go-review.googlesource.com/68410
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-05 23:11:56 +00:00
griesemer
5d1addf45d go/printer: fix formatting of three-index slice expression
Apply gofmt to src, misc.

Fixes #22111.

Change-Id: Ib1bda0caaf2c1787a8137b7a61bbef7a341cc68c
Reviewed-on: https://go-review.googlesource.com/67633
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-10-03 16:16:30 +00:00
Alex Brainman
538b4bab3d misc/cgo/testcshared: actually run test executable on android
CL 62593 broken TestExportedSymbols and TestUnexportedSymbols
because it started executing android test binary on host.
Make them run on android.

Hopefully fixes android build.

Change-Id: Ic0bb9f0cbbefca23828574282caa33a03ef72431
Reviewed-on: https://go-review.googlesource.com/62830
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Elias Naur <elias.naur@gmail.com>
2017-09-11 09:22:44 +00:00
Alex Brainman
40a7de7b3a misc/cgo/testcshared: simlpify cshared_test.go
Change-Id: Ib35bb7fc9c5b4ccc9b8e1bd16443e0b307be9406
Reviewed-on: https://go-review.googlesource.com/62593
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-09-11 06:29:44 +00:00
Alex Brainman
e27a81221f misc/cgo/testcshared: run tests in parallel
Change-Id: Id1b5939cfcd210a0cb5f61915ce2d077c7fcec11
Reviewed-on: https://go-review.googlesource.com/62592
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-09-10 23:21:02 +00:00
Alex Brainman
d0285161f0 misc/cgo/testcshared: use TestMain
This CL uses TestMain to create and remove
pkg directory and libgo.so file.

Fixes #21531

Change-Id: I833cfb22b55d8eef98348dad4d56327ac4c07b36
Reviewed-on: https://go-review.googlesource.com/57270
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-09-10 05:15:01 +00:00
Elias Naur
ff90f4af66 Revert "misc/cgo/testcshared: temporarily skip testing on android"
This reverts commit a6ffab6b67.

Reason for revert: with CL 57290 the tests run on Android again.

Change-Id: Ifeb29762a4cd0178463acfeeb3696884d99d2993
Reviewed-on: https://go-review.googlesource.com/57310
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-08-19 12:56:24 +00:00
Elias Naur
a9e0204c1e misc/cgo/testcshared: fix tests on android
The testcshared test.bash was rewritten in Go, but the rewritten script
broke on Android. Make the tests run on Android again by:

- Restoring the LD_LIBRARY_PATH path (.).
- Restoring the Android specific C flags (-pie -fuse-ld=gold).
- Adding runExe to run test executables. All other commands must run on
the host.

Fixes #21513.

Change-Id: I3ea617a943c686b15437cc5c118e9802a913d93a
Reviewed-on: https://go-review.googlesource.com/57290
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-08-19 12:55:05 +00:00
Alex Brainman
a6ffab6b67 misc/cgo/testcshared: temporarily skip testing on android
For #21513

Change-Id: Ibe9479f8afc6f425779a737a807ff2f839a4f311
Reviewed-on: https://go-review.googlesource.com/57250
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-08-19 08:18:09 +00:00
Alex Brainman
e2cdec77c6 misc/cgo/testcshared: cd into work directory before running android command
Hopefully this will fix android build.

Maybe fixes #21513

Change-Id: I98f760562646f06b56e385c36927e79458465b92
Reviewed-on: https://go-review.googlesource.com/56790
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-08-19 02:27:34 +00:00
Alex Brainman
b73d46de36 misc/cgo/testcshared: fix syntax error in the test
Another attempt to fix build

Change-Id: I26137c115ad4b5f5a69801ed981c146adf6e824c
Reviewed-on: https://go-review.googlesource.com/56750
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-08-18 05:29:56 +00:00
Alex Brainman
54f6911af5 misc/cgo/testcshared: use adb instead of ./adb on android
Hopefully fixes build.

Change-Id: If0629b95b923a65e4507073cf7aa44a5e178fc0f
Reviewed-on: https://go-review.googlesource.com/56711
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2017-08-18 04:45:49 +00:00
Christopher Nelson
ef94870cc8 misc/cgo/testcshared: rewrite test.bash in Go
Change-Id: Id717054cb3c4537452f8ff848445b0c20196a373
Reviewed-on: https://go-review.googlesource.com/33579
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2017-08-18 03:23:12 +00:00
Ben Shi
69261ecad6 runtime: use hardware divider to improve performance
The hardware divider is an optional component of ARMv7. This patch
detects whether it is available in runtime and use it or not.

1. The hardware divider is detected at startup and a flag is set/clear
   according to a perticular bit of runtime.hwcap.
2. Each call of runtime.udiv will check this flag and decide if
   use the hardware division instruction.

A rough test shows the performance improves 40-50% for ARMv7. And
the compatibility of ARMv5/v6 is not broken.

fixes #19118

Change-Id: Ic586bc9659ebc169553ca2004d2bdb721df823ac
Reviewed-on: https://go-review.googlesource.com/37496
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-11 12:25:55 +00:00
Russ Cox
b28f2f7399 cmd/link: make mach-o dwarf segment properly aligned
Without this, the load fails during kernel exec, which results in the
mysterious and completely uninformative "Killed: 9" error.

It appears that the stars (or at least the inputs) were properly aligned
with earlier versions of Xcode so that this happened accidentally.
Make it happen on purpose.

Gregory Man bisected the breakage to this change in LLVM,
which fits the theory nicely:
https://github.com/llvm-mirror/llvm/commit/9a41e59c

Fixes #19734.

Change-Id: Ice67a09af2de29d3c0d5e3fcde6a769580897c95
Reviewed-on: https://go-review.googlesource.com/38854
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-03-30 12:29:18 +00:00
Elias Naur
23f56c186d misc/cgo/testcshared: use the gold linker on android/arm64
The gold linker is used by default in the Android NDK, except on
arm64:

https://github.com/android-ndk/ndk/issues/148

The Go linker already forces the use of the gold linker on arm and
arm64 (CL 22141) for other reasons. However, the test.bash script in
testcshared doesn't, resulting in linker errors on android/arm64:

warning: liblog.so, needed by ./libgo.so, not found (try using -rpath or
-rpath-link)

Add -fuse-ld=gold when running testcshared on Android. Fixes the
android/arm64 builder.

Change-Id: I35ca96f01f136bae72bec56d71b7ca3f344df1ed
Reviewed-on: https://go-review.googlesource.com/38832
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-03-29 23:49:08 +00:00
Daniel Martí
a9824cd47c *.bash: always use the same string equality operator
POSIX Shell only supports = to compare variables inside '[' tests. But
this is Bash, where == is an alias for =. In practice they're the same,
but the current form is inconsisnent and breaks POSIX for no good
reason.

Change-Id: I38fa7a5a90658dc51acc2acd143049e510424ed8
Reviewed-on: https://go-review.googlesource.com/38031
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-03-14 21:46:31 +00:00
Ian Lance Taylor
860c9c0b8d misc/cgo/testcshared: wait up to 1 second in main2.c
Wait longer in case the system is heavily loaded.

Fixes #18324.

Change-Id: If9a6da1cf32d0321302d244ee24fb3f80e54489d
Reviewed-on: https://go-review.googlesource.com/34653
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-12-20 05:06:55 +00:00
Ian Lance Taylor
7dc97d9e32 misc/cgo/testcshared: add explicit ./ to shared library argument
Use an explicit ./ to make sure we link against the libgo.so we just
built, not some other libgo.so that the compiler or linker may decide to
seek out.

Fixes #17986.

Change-Id: Id23f6c95aa2b52f4f42c1b6dac45482c22b4290d
Reviewed-on: https://go-review.googlesource.com/33413
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-11-19 04:31:36 +00:00
Elias Naur
4ca3a8f7a8 misc/cgo: decrease test failure timeouts
CL 33239 changed the polling loops from using sched_yield to a sleep
for 1/1000 of a second. The loop counters were not updated, so failing
tests now take 100 seconds to complete. Lower the loop counts to 5
seconds instead.

Change-Id: I7c9a343dacc8188603ecf7e58bd00b535cfc87f5
Reviewed-on: https://go-review.googlesource.com/33280
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-11-17 16:31:34 +00:00
Ian Lance Taylor
b687d6a788 misc/cgo/testcarchive, misc/cgo/testcshared: sleep instead of sched_yield
Apparently when GOMAXPROCS == 1 a simple sched_yield in a tight loop is
not necessarily sufficient to permit a signal handler to run. Instead,
sleep for 1/1000 of a second.

Fixes #16649.

Change-Id: I83910144228556e742b7a92a441732ef61aa49d9
Reviewed-on: https://go-review.googlesource.com/33239
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-11-15 05:35:54 +00:00
Eric Engestrom
7a8caf7d43 all: fix spelling mistakes
Signed-off-by: Eric Engestrom <eric@engestrom.ch>

Change-Id: I91873aaebf79bdf1c00d38aacc1a1fb8d79656a7
Reviewed-on: https://go-review.googlesource.com/21433
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-03 17:03:15 +00:00
Jeff R. Allen
ee177279a0 misc/cgo: fix wrong quote character
Single quotes to not expand variables inside of them.

Change-Id: I4a0622c0aebfc1c3f9d299f93f7a8253893b5858
Reviewed-on: https://go-review.googlesource.com/13661
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-02-26 19:39:51 +00:00
Joe Sylve
9efc46f1cb cmd/go: -buildmode=c-shared should work on darwin/386
* Enable c-shared buildmode on darwin/386
* dyld does not support text relocation on i386. Add -read_only_relocs suppress flag to linker

Fixes #13904

Change-Id: I9adbd20d3f36ce9bbccf1bffb746b391780d088f
Reviewed-on: https://go-review.googlesource.com/18500
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-13 18:24:38 +00:00
Ian Lance Taylor
2586af47f6 misc/cgo/testcarchive,testcshared: deflake tests
After a failure on the build dashboard I tested testcarchive test 2 and
found that it failed an average of 1 in 475 runs on my laptop.  With
this change it ran over 50,000 times without failing.  I bumped up the
other iteration limits to correspond.

Change-Id: I0155c68161a2c2a09ae25c91e9269f1e8702628d
Reviewed-on: https://go-review.googlesource.com/18309
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-01-07 01:32:29 +00:00
Russ Cox
f2c36df9a2 misc/cgo/testcshared: print a little more about GOROOT on failure
For #13789.

Change-Id: I83973298a35afcf55627f0a72223098306a51f4b
Reviewed-on: https://go-review.googlesource.com/18233
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-01-05 14:19:24 +00:00
Ian Lance Taylor
a7d2b4d7ce runtime: disable a signal by restoring the original disposition
Fixes #13034.
Fixes #13042.
Update #9896.

Change-Id: I189f381090223dd07086848aac2d69d2c00d80c4
Reviewed-on: https://go-review.googlesource.com/18062
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-05 00:25:50 +00:00
Didier Spezia
dc5315c341 build: prevent the entire repo to be wiped out by cgo test scripts
Following the parallelization of some tests, a race condition can
occur in testcarchive, testshared and testcshared.

In some cases, it can result in the go env GOROOT command returning
corrupted data, which are then passed to a rm command.

Make the shell script more robust by not trusting the result of
the go env GOROOT command. It does not really fix the issue, but
at least prevent the entire repository to be deleted.

Updates #13789

Change-Id: Iaf04a7bd078ed3a82e724e35c4b86e6f756f2a2f
Reviewed-on: https://go-review.googlesource.com/18173
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2016-01-04 19:56:30 +00:00
Ian Lance Taylor
fbdfa99246 runtime: for c-archive/c-shared, don't install unnecessary signal handlers
Only install signal handlers for synchronous signals that become
run-time panics.  Set the SA_ONSTACK flag for other signal handlers as
needed.

Fixes #13028.
Update #12465.
Update #13034.
Update #13042.

Change-Id: I28375e70641f60630e10f3c86e24b6e4f8a35cc9
Reviewed-on: https://go-review.googlesource.com/17903
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-12-18 22:27:38 +00:00
Russ Cox
b5e2ec8bbe misc/cgo/testcshared: use fd 100 instead of fd 10 for back-channel communication
There is a report that fd 10 is already in use when run on some OS X machines.
I don't see how, and I can't reproduce the problem on my own OS X machine,
but it's easy enough to fix.

Fixes #12161.

Change-Id: I73511bdd91258ecda181d60d2829add746d1198b
Reviewed-on: https://go-review.googlesource.com/17451
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-12-05 03:56:23 +00:00
David Crawshaw
ab7e82ef3b cmd/go: buildmode=c-shared support for linux/arm64
Change-Id: Ic826dc25b5203b2e9fc253d6fe997e4b41de3789
Reviewed-on: https://go-review.googlesource.com/16453
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-10-29 16:25:37 +00:00
Hyang-Ah Hana Kim
26d0b00536 cmd/go: enable android/amd64 build.
For golang/go#10743

Change-Id: Iec047821147a0e28edebf875fefe25993785702b
Reviewed-on: https://go-review.googlesource.com/15994
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-10-28 20:55:13 +00:00
Hyang-Ah Hana Kim
ee07504d26 misc/cgo/testcshared: use -pie for android-L.
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>
2015-10-13 18:35:03 +00:00
Michael Hudson-Doyle
5cbca8d84b cmd/internal/ld: put read-only relocated data into .data.rel.ro when making a shared object
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>
2015-09-08 23:34:16 +00:00
Dave Cheney
e49b2460a4 Revert "cmd/internal/ld: put read-only relocated data into .data.rel.ro when making a shared object"
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>
2015-09-04 19:47:36 +00:00
Michael Hudson-Doyle
2c2cbb69c8 cmd/internal/ld: put read-only relocated data into .data.rel.ro when making a shared object
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>
2015-09-04 05:25:10 +00:00
Mikio Hara
fe1cecfaec misc/cgo/testcshared: don't leave garbages after test
Change-Id: I668b18b1e6901c59cf170e0c1cde9a3923c0cb13
Reviewed-on: https://go-review.googlesource.com/11472
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-06-25 19:54:56 +00:00
Srdjan Petrovic
cc6554f750 cmd/link/internal/ld, cmd/go: -buildmode=c-shared support for darwin/amd64
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>
2015-06-19 20:28:01 +00:00
Hyang-Ah (Hana) Kim
647026a16b misc/cgo/testcshared: remove use of 'env'.
'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>
2015-05-13 21:31:03 +00:00
Hyang-Ah (Hana) Kim
a4f4a46c28 misc/cgo/testcshared: fix test for android.
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>
2015-05-12 23:46:33 +00:00
Ian Lance Taylor
e45aebd6dd cmd/go: install headers for c-archive/c-shared cgo exports
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>
2015-05-07 17:39:56 +00:00