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Commit Graph

633 Commits

Author SHA1 Message Date
Clément Chigot
53c9c06811 misc/cgo: enable testso and testsovar on aix/ppc64
On AIX, shared objects must be wrapped under an archive file.

For testso, creating libcgosotest with an extern symbol isn't
AIX-friendly. By default, ld will block such behavior. Rather than
forcing ld to work as on Linux and using the run-time linking,
goCallback became a function pointer which is set by setCallback().

Updates #30565

Change-Id: I455ab32faddd41f1b0c84cc9e503788044ad49b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/169020
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-27 17:21:28 +00:00
Keith Randall
2034fbab5b cmd/compile: use existing instructions instead of nops for inline marks
Instead of always inserting a nop to use as the target of an inline
mark, see if we can instead find an instruction we're issuing anyway
with the correct line number, and use that instruction. That way, we
don't need to issue a nop.

Makes cmd/go 0.3% smaller.

Update #29571

Change-Id: If6cfc93ab3352ec2c6e0878f8074a3bf0786b2f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/158021
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2019-03-25 16:49:29 +00:00
Clément Chigot
08692bed1e cmd/compile, misc/cgo: fix fortran tests on aix/ppc64
Enable pattern lib.a/shared.so.X in cgo_import_dynamic as on AIX,
archive files (.a) often have shared objects (.so) inside them.

Change-Id: I21096c75eb7fbcc7064b0b832bfa8ed862142051
Reviewed-on: https://go-review.googlesource.com/c/go/+/168877
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-22 13:52:59 +00:00
Tobias Klauser
9a49b17f25 misc/cgo: gofmt testdata files
Change-Id: I64e05a1f768cb57194506021bb7fdca0ad19bf1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/168461
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-22 07:21:24 +00:00
Clément Chigot
125d187f9a cmd/dist, misc/cgo: enable tests for aix/ppc64
Some cgo tests aren't yet available on aix/ppc64.
-shared and -static don't work as expected and will be fixed latter.

Updates #30565

Change-Id: Ic59cabe685cb1cbdf89a8d1d1a1d2c4b0e8ef442
Reviewed-on: https://go-review.googlesource.com/c/go/+/164018
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 14:38:44 +00:00
Philipp Stephani
08751259b7 cmd/cgo: use C exact-width integer types to represent Go types
The exact-width integer types are required to use two’s complement
representation and may not have padding bits, cf. §7.20.1.1/1 in the C11
standard or https://en.cppreference.com/w/c/types/integer.  This ensures that
they have the same domain and representation as the corresponding Go types.

Fixes #29878

Change-Id: Ie8a51e91666dfd89731c7859abe47356c94ca1be
GitHub-Last-Rev: 546a2cc3f1
GitHub-Pull-Request: golang/go#29907
Reviewed-on: https://go-review.googlesource.com/c/go/+/159258
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-18 21:08:21 +00:00
Elias Naur
632162ccbc misc/android: enable many more tests on GOOS=android
Android tests are built on the host and run on the device. To do
that, the exec wrapper copies the test binary and testdata to the device.
To enable many more tests, make the copied environment more like the host:

- Copy all of pkg from GOROOT, not just the android pkg directory.
- Copy any parent testdata directories as well as the package's own.
- Copy *.go files from the package directory. This enables misc/cgo/stdio
and misc/cgo/life tests that were invisible before so disable them explicitly.
- Always copy the GOROOT, even for tests outside GOROOT. This is expensive
 but only done once per make.bash.
- Build the go tool for the device and put it in PATH. Set GOCACHE
to a writable directory and disable cgo.

While here, use a single directory for all the exec wrapper files and
delete that once per make.bash as well.

In total, this CL enables many tests in the subrepos that would need skips
without it, in particular the x/tools tests.

Fixes #11452
Updates #23824
Updates #11811

Change-Id: I2e50d8b57db9bc4637f25272a5360c8b2cf4e627
Reviewed-on: https://go-review.googlesource.com/c/go/+/165797
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-03-08 23:32:03 +00:00
alkesh26
c7f69a2897 misc: fix typos in various docs
Change-Id: Ib03d7e5686e510152042e403b00fb2d65572f393
GitHub-Last-Rev: 57aeedf077
GitHub-Pull-Request: golang/go#30156
Reviewed-on: https://go-review.googlesource.com/c/go/+/161723
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2019-03-07 07:30:06 +00:00
Rémy Oudompheng
711ea1e716 cmd/cgo: simplify and fix handling of untyped constants
Instead of trying to guess type of constants in the AST,
which is hard, use the "var cgo%d Type = Constant"
so that typechecking is left to the Go compiler.

The previous code could still fail in some cases
for constants imported from other modules
or defined in other, non-cgo files.

Fixes #30527

Change-Id: I2120cd90e90a74b9d765eeec53f6a3d2cfc1b642
Reviewed-on: https://go-review.googlesource.com/c/go/+/164897
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-03-06 21:16:20 +00:00
Ian Lance Taylor
7dc3d9f85f misc/cgo/testplugin: let TestMain run deferred functions
Split TestMain into two functions so that we can defer cleanups.

Updates #30500

Change-Id: I4a5c7ddb8218a8bd056c8733c3cb9feb895e77a0
Reviewed-on: https://go-review.googlesource.com/c/164859
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2019-03-01 21:33:27 +00:00
Ian Lance Taylor
4aff88ded2 misc/cgo/testcshared: delete temporary directory in test
The deferred os.RemoveAll was accidentally committed as commented out
in the original https://golang.org/cl/87158.

Updates #30500

Change-Id: Idc5195816d7978253760dbfd78fde6d22c456296
Reviewed-on: https://go-review.googlesource.com/c/164858
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2019-03-01 21:33:00 +00:00
Bryan C. Mills
ee6bec958d misc/cgo/test: set PWD when executing 'go test' in an alternate GOPATH
That makes the test more friendly to the Android exec script, since it
won't have to evaluate symlinks to find the directory.

Change-Id: I06aae3224d489eed6d7fac7e462361f3bf1dd3da
Reviewed-on: https://go-review.googlesource.com/c/164624
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Elias Naur <mail@eliasnaur.com>
2019-03-01 18:35:31 +00:00
Bryan C. Mills
5c9a96c420 misc/cgo/test: skip TestCrossPackageTests on Android
This test currently fails in the Android builders, with the message
	pkg_test.go:64: go test -short: exec: "go": executable file not found in $PATH
(https://build.golang.org/log/39ec0da5bfb7793359e199cc8e358ca5a8257840)

I was not able to test this change, because I can't get 'gomote
create' to return an instance of anything Android. However, I will
watch the build dashboard after submitting to verify that the fix
works.

Updates #30228

Android appears to lack a 'go' command in the.

Change-Id: Ieacac7f50d19e2cfef2f5d60e79a159e55b5cfa8
Reviewed-on: https://go-review.googlesource.com/c/164097
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Elias Naur <mail@eliasnaur.com>
2019-02-27 16:41:26 +00:00
Bryan C. Mills
b5a68a9e41 misc/cgo: skip cgotest.TestCrossPackageTests on iOS and set PWD
I hope that this will fix the tests on iOS, but 'gomote create' isn't
giving me an instance I can test with. (Please patch and test before
approving.)

Updates #15919
Updates #30228

Change-Id: I1b7cd30d5b127a1ad3243b329fa005d229f69a24
Reviewed-on: https://go-review.googlesource.com/c/163726
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Elias Naur <mail@eliasnaur.com>
2019-02-26 13:29:07 +00:00
Bryan C. Mills
c6da080b1a misc/cgo/testgodefs: move source files into testdata
These source files fail to build with 'go test ./...'.
Move them into testdata so that only test.bash will see them.

Updates #30228

Change-Id: I3673f3cb64b0c128a2bca5fee7679b672fe90770
Reviewed-on: https://go-review.googlesource.com/c/163212
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-26 02:44:12 +00:00
Bryan C. Mills
dd4e7f9722 misc/cgo/testso{,var}: fix tests in module mode
Add _test.go files in the individal directories to invoke 'go build'
with appropriate arguments.

Move the test driver out of cmd/dist so that it's easier to invoke the
test separately (using 'go test .').

Updates #30228
Updates #28387

Change-Id: Ibc4a024a52c12a274058298b41cc90709f7f56c8
Reviewed-on: https://go-review.googlesource.com/c/163420
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-26 02:43:55 +00:00
Bryan C. Mills
01f34cbf52 misc/cgo/life: fix tests in module mode
Updates #30228

Change-Id: Ie972694254d2195ca9760ea7ffb6073e01c52488
Reviewed-on: https://go-review.googlesource.com/c/163422
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-24 00:41:11 +00:00
Bryan C. Mills
c6611b2f7e misc/cgo/stdio: fix tests in module mode
Updates #30228

Change-Id: I4d213c6fe68c47ccb877f13b55128e035f76a26b
Reviewed-on: https://go-review.googlesource.com/c/163421
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-24 00:40:20 +00:00
Bryan C. Mills
eb2d1cdd1b misc/cgo/testplugin: convert test.bash to Go and fix in module mode
Updates #30228
Updates #28387

Change-Id: Iad7d960b70221f90ccc2372bb1d4d41cec3926e4
Reviewed-on: https://go-review.googlesource.com/c/163214
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-24 00:36:13 +00:00
Bryan C. Mills
551af5f50a misc/cgo/test: fix tests in module mode
This change preserves the ability to test misc/cgo/test in GOPATH
mode, at the cost of indirection through a 'go test' subprocess.

Updates #30228

Change-Id: I08de855e62278d30fa622b2f7478e43dd2ab0e96
Reviewed-on: https://go-review.googlesource.com/c/163418
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-02-24 00:35:18 +00:00
Bryan C. Mills
8f1e2d4ef7 misc/cgo/testsanitizers: move test source files into testdata directory
If we run 'go test ./...' in the misc module, we don't want to see
errors for these standalone files.

We could instead add +ignore tags to each file individually, but this
is exactly what a testdata directory is for.

Updates #30228

Change-Id: I7047ad888dd6aff701f5982d58b6a79f6a487c58
Reviewed-on: https://go-review.googlesource.com/c/163417
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-22 21:58:00 +00:00
Bryan C. Mills
a00611f58d misc/cgo/testcshared: fix tests in module mode
Updates #30228

Change-Id: Ie9dca7c64be8dff729be98cb6190236287afd23e
Reviewed-on: https://go-review.googlesource.com/c/163213
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-22 21:57:35 +00:00
Bryan C. Mills
ffde2ddb95 misc/cgo/testshared: fix tests in module mode
Updates #30228

Change-Id: I5cc739eb9fdfb648ec45e350d43d4cb02e450553
Reviewed-on: https://go-review.googlesource.com/c/163211
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-22 21:57:16 +00:00
Bryan C. Mills
13d9a29060 misc/cgo/testcarchive: fix tests in module mode
Updates #30228

Change-Id: I830e3c83416b2e5744f30d1a903a74c50462716b
Reviewed-on: https://go-review.googlesource.com/c/163210
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-22 21:56:56 +00:00
Bryan C. Mills
8ea27e117f misc/cgo/errors: fix tests in module mode
Updates #30228

Change-Id: I84bc705591bdb3da0106404b24353251939355b8
Reviewed-on: https://go-review.googlesource.com/c/163209
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-22 17:24:25 +00:00
Ian Lance Taylor
3fc276ccf8 cmd/cgo: don't copy a simple variable x in &x[0]
Fixes #30065

Change-Id: I3d0fb03bab397548653d5f3b386cfe2980ac1030
Reviewed-on: https://go-review.googlesource.com/c/160830
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2019-02-04 06:53:49 +00:00
Ian Lance Taylor
dd1889cb22 cmd/cgo: don't replace newlines with semicolons in expressions
Fixes #29781

Change-Id: Id032d07a54b8c24f0c6d3f6e512932f76920ee04
Reviewed-on: https://go-review.googlesource.com/c/158457
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-01-18 03:25:40 +00:00
Ian Lance Taylor
76e8ca447c cmd/cgo: don't replace newlines with semicolons in composite literals
Fixes #29748

Change-Id: I2b19165bdb3c99df5b79574390b5d5f6d40462dc
Reviewed-on: https://go-review.googlesource.com/c/157961
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2019-01-15 18:14:54 +00:00
Ian Lance Taylor
0d6a2d5f9a runtime: skip writes to persistent memory in cgo checker
Fixes #23899
Fixes #28458

Change-Id: Ie177f2d4c399445d8d5e1a327f2419c7866cb45e
Reviewed-on: https://go-review.googlesource.com/c/155697
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2019-01-04 02:40:56 +00:00
Keith Randall
69c2c56453 cmd/compile,runtime: redo mid-stack inlining tracebacks
Work involved in getting a stack trace is divided between
runtime.Callers and runtime.CallersFrames.

Before this CL, runtime.Callers returns a pc per runtime frame.
runtime.CallersFrames is responsible for expanding a runtime frame
into potentially multiple user frames.

After this CL, runtime.Callers returns a pc per user frame.
runtime.CallersFrames just maps those to user frame info.

Entries in the result of runtime.Callers are now pcs
of the calls (or of the inline marks), not of the instruction
just after the call.

Fixes #29007
Fixes #28640
Update #26320

Change-Id: I1c9567596ff73dc73271311005097a9188c3406f
Reviewed-on: https://go-review.googlesource.com/c/152537
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
2018-12-28 20:55:36 +00:00
Ian Lance Taylor
08477a38ab cmd/cgo: don't let inserted /*line*/ become a // comment
Fixes #29383

Change-Id: I0fb2929863e153b96d32d851e25e536231e4ae65
Reviewed-on: https://go-review.googlesource.com/c/155638
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-12-22 00:45:13 +00:00
Ian Lance Taylor
d9e2ba4fcc cmd/cgo: ensure the command passed to run retains a trailing dash
This was accidentally broken by CL 127755.

Fixes #29333

Change-Id: I5e92048c64a55c1699d6c38eb4dbbd51c817b820
Reviewed-on: https://go-review.googlesource.com/c/155037
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-12-19 15:47:36 +00:00
Elias Naur
d50390ce72 cmd/fix,cmd/cgo,misc/cgo: map the EGLDisplay C type to uintptr in Go
Similar to to macOS' CF* types and JNI's jobject and derived types,
the EGLDisplay type is declared as a pointer but can contain
non-pointers (see #27054).
Fix it the same way: map EGLDisplay to uintptr in Go.

Fixes #27054

RELNOTE=yes

Change-Id: I6136f8f8162687c5493b30ed324e29efe55a8fd7
Reviewed-on: https://go-review.googlesource.com/c/154417
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-12-15 19:27:41 +00:00
Ian Lance Taylor
12c0f1b3e6 cmd/cgo: set correct column for user-written code
Take advantage of the new /*line*/ comments.

Fixes #26745

Change-Id: I8098642e0f11f7418fe81b9a08dbe07671f930fe
Reviewed-on: https://go-review.googlesource.com/c/151598
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-12-12 00:08:03 +00:00
Ian Lance Taylor
6d43587053 cmd/cgo: preserve type information across loadDWARF loop
CL 122575 and its successors introduced a loop calling loadDWARF,
whereas before we only called it once. Pass a single typeConv to each
call, rather than creating a new one in loadDWARF itself. Change the
maps from dwarf.Type to use string keys rather than dwarf.Type keys,
since when the DWARF is reloaded the dwarf.Type pointers will be
different. These changes permit typeConv.Type to return a consistent
value for a given DWARF type, avoiding spurious type conversion errors
due to typedefs loaded after the first loop iteration.

Fixes #27340

Change-Id: Ic33467bbfca4c54e95909621b35ba2a58216d96e
Reviewed-on: https://go-review.googlesource.com/c/152762
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-12-11 03:29:27 +00:00
Ian Lance Taylor
1ac3b06181 cmd/compile: emit a symbol for a method expression when using -dynlink
Fixes #25065

Change-Id: Ia3db518cfd9c006caf951b51342a491ac8372e9c
Reviewed-on: https://go-review.googlesource.com/c/153297
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-12-11 03:20:37 +00:00
Hiroshi Ioka
5e1727892b cmd/cgo: reject names that are likely to be mangled C name
Fixes #28721

Change-Id: I00356f3a9b0c2fb21dc9c2237dd5296fcb3b319b
Reviewed-on: https://go-review.googlesource.com/c/152657
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-12-05 14:12:14 +00:00
Ian Lance Taylor
58ffe5059f misc/cgo/testcshared: skip TestGo2C2Go on Android
Updates #29087

Change-Id: I0bab45818119176c2ba5de9c0e457b7717485d6f
Reviewed-on: https://go-review.googlesource.com/c/152162
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-12-03 23:32:59 +00:00
Ian Lance Taylor
54cbc5b4bf cmd/cgo: use a plausible position for typedef error messages
Fixes #28069

Change-Id: I7e0f96b8b6d123de283325fcb78ec76455050f6d
Reviewed-on: https://go-review.googlesource.com/c/152158
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-12-03 20:26:04 +00:00
Ian Lance Taylor
cef41e0d4b misc/cgo/testcshared: don't run TestGo2C2Go on Darwin
Darwin doesn't support the multiple copies of the runtime package
implied by linking a c-shared library into a Go program.

Updates #29061

Change-Id: I6cf5d00babf82f1de05689c1345aaa5ae0b0659c
Reviewed-on: https://go-review.googlesource.com/c/152159
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-03 19:37:57 +00:00
Ian Lance Taylor
f70bd91435 cmd/cgo: use preprocessor macros to avoid prolog redefinitions
Avoid redefinition errors when a Go file uses a cgo comment to
There is no particularly good reason to do this, but there is also no
particularly good reason that it should fail.

Fixes #27019

Change-Id: Icd6f8197a89be4ee6b03ddae675667998a8b4189
Reviewed-on: https://go-review.googlesource.com/c/152079
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-12-01 05:30:16 +00:00
Ian Lance Taylor
fbdaa96563 cmd/cgo: use field alignment when setting field offset
The old code ignored the field alignment, and only looked at the field
offset: if the field offset required padding, cgo added padding. But
while that approach works for Go (at least with the gc toolchain) it
doesn't work for C code using packed structs. With a packed struct the
added padding may leave the struct at a misaligned position, and the
inserted alignment, which cgo is not considering, may introduce
additional, unexpected, padding. Padding that ignores alignment is not
a good idea when the struct is not packed, and Go structs are never
packed. So don't ignore alignment.

Fixes #28896

Change-Id: Ie50ea15fa6dc35557497097be9fecfecb11efd8a
Reviewed-on: https://go-review.googlesource.com/c/150602
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-11-29 19:18:12 +00:00
Ian Lance Taylor
4f26f24d2a cmd/cgo: recognize untyped constants defined in different files
An untyped constant can be defined in any input file, we shouldn't
segregate them by file.

Updates #28772

Change-Id: I0347f15236833bb511eb49f86c449ee9241b0a25
Reviewed-on: https://go-review.googlesource.com/c/151600
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-11-29 01:29:56 +00:00
Ian Lance Taylor
ba8f6fa0ca cmd/cgo: recognized untyped Go constants as untyped constants
Fixes #28772

Change-Id: I9446d95fb73fbcbb1cd9a4d2156ebc91bc9e91cb
Reviewed-on: https://go-review.googlesource.com/c/149858
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-16 23:30:19 +00:00
Tobias Klauser
48e4d36fed misc/cgo/testsanitizers: gofmt
Change-Id: I4e7328bb89f504dbca3948b8565d22c44d41db3d
Reviewed-on: https://go-review.googlesource.com/c/149917
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-16 13:54:47 +00:00
Nikhil Benesch
e496e612b7 runtime: never call into race detector with retaken P
cgocall could previously invoke the race detector on an M whose P had
been retaken. The race detector would attempt to use the P-local state
from this stale P, racing with the thread that was actually wired to
that P. The result was memory corruption of ThreadSanitizer's internal
data structures that presented as hard-to-understand assertion failures
and segfaults.

Reorder cgocall so that it always acquires a P before invoking the race
detector, and add a test that stresses the interaction between cgo and
the race detector to protect against future bugs of this kind.

Fixes #27660.

Change-Id: Ide93f96a23490314d6647547140e0a412a97f0d4
Reviewed-on: https://go-review.googlesource.com/c/148717
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
2018-11-09 21:47:48 +00:00
Ian Lance Taylor
4d567310d2 cmd/cgo: accept expressions as untyped constants
Fixes #28545

Change-Id: I31c57ce11aca651cacc72235c7753e0c0fd170ef
Reviewed-on: https://go-review.googlesource.com/c/146900
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2018-11-02 19:28:58 +00:00
Ian Lance Taylor
a70a2a8ad6 cmd/cgo: don't update each call in place
Updating each call in place broke when there were multiple cgo calls
used as arguments to another cgo call where some required rewriting.
Instead, rewrite calls to strings via the existing mangling mechanism,
and only substitute the top level call in place.

Fixes #28540

Change-Id: Ifd66f04c205adc4ad6dd5ee8e79e57dce17e86bb
Reviewed-on: https://go-review.googlesource.com/c/146860
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
2018-11-02 05:35:56 +00:00
Ian Lance Taylor
90df37769d cmd/cgo: rewrite pointer checking to use more function literals
Fixes #14210
Fixes #25941

Change-Id: Idde2d032290da3edb742b5b4f6ffeb625f05b494
Reviewed-on: https://go-review.googlesource.com/c/142884
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-01 21:54:54 +00:00
Igor Zhilianin
f90e89e675 all: fix a bunch of misspellings
Change-Id: If2954bdfc551515403706b2cd0dde94e45936e08
GitHub-Last-Rev: d4cfc41a55
GitHub-Pull-Request: golang/go#28049
Reviewed-on: https://go-review.googlesource.com/c/140299
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-10-06 15:40:03 +00:00