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1360 Commits

Author SHA1 Message Date
Ian Lance Taylor
a371bc2dfd cmd/cgo: don't report inconsistency error for incomplete typedef
In CLs 122575 and 123177 the cgo tool started explicitly looking up
typedefs. When there are two Go files using import "C", and the first
one has an incomplete typedef and the second one has a complete
version of the same typedef, then we will now record a version of the
first typedef which will not match the recorded version of the second
typedef, producing an "inconsistent definitions" error. Fix this by
silently merging incomplete typedefs with complete ones.

Fixes #26430

Change-Id: I9e629228783b866dd29b5c3a31acd48f6e410a2d
Reviewed-on: https://go-review.googlesource.com/124575
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-07-18 04:17:51 +00:00
Steeve Morin
5419e7a09d cmd/cgo: update JNI's jobject to uintptr check for newer Android NDKs
In Android's NDK16, jobject is now declared as:
    #ifdef __cplusplus
    class _jobject {};
    typedef _jobject*       jobject;
    #else /* not __cplusplus */
    typedef void*           jobject;
    #endif

This makes the jobject to uintptr check fail because it expects the
following definition:
    struct _jobject;
    typedef struct _jobject *jobject;

Update the type check to handle that new type definition in both C and
C++ modes.

Fixes #26213

Change-Id: Ic36d4a5176526998d2d5e4e404f8943961141f7a
GitHub-Last-Rev: 42037c3c58
GitHub-Pull-Request: golang/go#26221
Reviewed-on: https://go-review.googlesource.com/122217
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-07-17 16:51:15 +00:00
Ian Lance Taylor
f17220c208 cmd/go: fix handling of vet.cfg with buggyInstall
The vet action assumes that a.Deps[0] is the compilation action for
which vet information should be generated. However, when using
-linkshared, the action graph is built with a ModeBuggyInstall action
to install the shared library built from the compilation action.
Adjust the set up of the vet action accordingly. Also don't clean up
the working directory after completing the buggy install.

Updates #26400

Change-Id: Ia51f9f6b8cde5614a6f2e41b6207478951547770
Reviewed-on: https://go-review.googlesource.com/124275
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-07-17 05:41:06 +00:00
Keith Randall
baebc7f993 misc/cgo: fix darwin test, again
TARGET_OS_OSX is the right macro, but it also was only introduced
in 1.12.  For 1.11 and earlier a reasonable substitution is
TARGET_OS_IPHONE == 0.

Update #24161
Update #26355

Change-Id: I5f43c463d14fada9ed1d83cc684c7ea05d94c5f3
Reviewed-on: https://go-review.googlesource.com/124075
Run-TryBot: Keith Randall <khr@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-16 19:14:30 +00:00
Keith Randall
2598ed0758 misc/cgo: fix test on iOS
The test in CL 123715 doesn't work on iOS, it needs to use a different
version scheme to determine whether SecKeyAlgorithm and friends exist.
Restrict the old version test to OSX only.

The same problem occurs on iOS: the functions tested don't exist before
iOS 10.  But we don't have builders below iOS 10, so it isn't a big issue.
If we ever get older builders, or someone wants to run all.bash on an
old iOS, they'll need to figure out the right incantation.

Update #24161
Update #26355

Change-Id: Ia3ace86b00486dc172ed00c0c6d668a95565bff7
Reviewed-on: https://go-review.googlesource.com/123959
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-15 06:06:38 +00:00
Keith Randall
a2419221fd misc/cgo/test: fix issue 24161 test for 1.11 and earlier
The test uses functions from C that were introduced in OSX 1.12.
Include stubs for those functions when compiling for 1.11 and earlier.
This test really a compile-time test, it doesn't matter much what the
executed code actually does.
Use a nasty #define hack to work around the fact that cgo doesn't
support static global variables.

Update #24161
Fixes #26355

Change-Id: Icf6f7bc9b6b36cacc81d5d0e033a2ebaff7e0298
Reviewed-on: https://go-review.googlesource.com/123715
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-13 00:03:31 +00:00
Keith Randall
b888a6227f cmd/cgo: fix cgo bad typedefs
Two fixes:

1) Typedefs of the bad typedefs should also not be rewritten to the
   underlying type.  They shouldn't just be uintptr, though, they should
   retain the C naming structure.  For example, in C:

   typedef const __CFString * CFStringRef;
   typedef CFStringRef SecKeyAlgorithm;

   we want the Go:

   type _Ctype_CFStringRef uintptr
   type _Ctype_SecKeyAlgorithm = _Ctype_CFStringRef

2) We need more types than just function arguments/return values.
   At least we need types of global variables, so when we see a reference to:

   extern const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962SHA1;

   we know that we need to investigate the type SecKeyAlgorithm.
   Might as well just find every typedef and check the badness of all of them.
   This requires looping until a fixed point of known types is reached.
   Usually it takes just 2 iterations, sometimes 3.

Fixes #24161

Change-Id: I32ca7e48eb4d4133c6242e91d1879636f5224ea9
Reviewed-on: https://go-review.googlesource.com/123177
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-12 19:15:12 +00:00
Richard Musiol
6fe7b43416 misc/wasm: free up memory on exit
Private fields of the Go class are not used any more after the program
has exited. Delete them to allow JavaScript's garbage collection to
clean up the WebAssembly instance.

Updates #26193.

Change-Id: I349784a49eaad0c22ceedd4f859df97132775537
Reviewed-on: https://go-review.googlesource.com/122296
Run-TryBot: Richard Musiol <neelance@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-11 10:22:17 +00:00
Richard Musiol
e97ef4127f syscall/js: add Value.Type
This commits adds Value.Type(), which returns the JavaScript type of
a Value.

The implementation uses two previously unused bits of the NaN payload
to encode type information.

Change-Id: I568609569983791d50d35b8d80c44f3472203511
Reviewed-on: https://go-review.googlesource.com/122375
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-09 22:51:14 +00:00
Keith Randall
94076feef5 cmd/cgo: check function argument/return types for bad C pointer types
We need to determine whether arguments to and return values from C
functions are "bad" typedef'd pointer types which need to be uintptr
on the Go side.

The type of those arguments are not specified explicitly. As a result,
we never look through the C declarations for the GetTypeID functions
associated with that type, and never realize that they are bad.
However, in another function in the same package there might be an
explicit reference. Then we end up with the declaration being uintptr
in one file and *struct{...} in another file. Badness ensues.

Fix this by doing a 2-pass algorithm. In the first pass, we run as
normal, but record all the argument and result types we see. In the
second pass, we include those argument types also when reading the C
types.

Fixes #24161

Change-Id: I8d727e73a2fbc88cb9d9899f8719ae405f59f753
Reviewed-on: https://go-review.googlesource.com/122575
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-09 22:19:21 +00:00
Michael Munday
0268a63ffa misc/cgo/testcarchive: increase timeout duration in TestOsSignal
This test is slightly flaky on the s390x builder and I suspect that
the 100ms timeout is a little too optimistic when the VM is starved.
Increase the timeout to 5s to match the other part of the test.

Fixes #26231.

Change-Id: Ia6572035fb3efb98749f2c37527d250a4c779477
Reviewed-on: https://go-review.googlesource.com/122315
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-06 13:55:35 +00:00
Dan Kortschak
efea01788d testshared/src/depBase: conform build tag comment to convention
Also add missing copyright headers with year determined from git log.

Change-Id: Iafc9881e746543f0a582dad2b0874d8399baf618
Reviewed-on: https://go-review.googlesource.com/122415
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-07-06 02:04:54 +00:00
Ian Lance Taylor
e2f8766c30 cmd/cgo: mark C result as written for msan
Otherwise it is possible that msan will consider the C result to be
partially initialized, which may cause msan to think that the Go stack
is partially uninitialized. The compiler will never mark the stack as
initialized, so without this CL it is possible for stack addresses to
be passed to msanread, which will cause a false positive error from msan.

Fixes #26209

Change-Id: I43a502beefd626eb810ffd8753e269a55dff8248
Reviewed-on: https://go-review.googlesource.com/122196
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-07-05 05:15:15 +00:00
John Leidegren
9e5fe6baf1 misc/wasm: use "self" instead of "window" in web worker contexts
There is no "window" global in a web worker context. Use "self" instead.

Fixes #26192

Change-Id: I6c6f3db6c3d3d9ca00a473f8c18b849bc07a0017
Reviewed-on: https://go-review.googlesource.com/122055
Run-TryBot: Richard Musiol <neelance@gmail.com>
Reviewed-by: Richard Musiol <neelance@gmail.com>
2018-07-05 01:42:17 +00:00
Paul Jolly
abaf53fb8e misc/wasm: use single map for string, symbol and object id mapping.
Currently we use a globally unique symbol property on objects that get
passed from JavaScript to Go to store a unique ID that Go then uses when
referring back to the JavaScript object (via js.Value.ref). This
approach fails however when a JavaScript object cannot be modified, i.e.
cannot have new properties added or is frozen. The test that is added as
part of this commit currently fails with:

  Cannot add property Symbol(), object is not extensible

Instead we consolidate the string, symbol and object unique ID mapping
into a single map. Map key equality is determined via strict equality,
which is the semantic we want in this situation.

Change-Id: Ieb2b50fc36d3c30e148aa7a41557f3c59cd33766
Reviewed-on: https://go-review.googlesource.com/121799
Run-TryBot: Paul Jolly <paul@myitcv.org.uk>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Richard Musiol <neelance@gmail.com>
2018-07-03 20:45:17 +00:00
Peter Gonda
23ce272bb1 cmd/cgo: permit missing dynamic symbol section
Allow static complication of cgo enabled libraries.

Fixes #16651

Change-Id: I0729ee4e6e5f9bd1cbdb1bc2dcbfe34463df547c
Reviewed-on: https://go-review.googlesource.com/89655
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-07-02 17:50:00 +00:00
Cherry Zhang
28f9b880f6 misc/wasm: make sure value ref id is unique
For each Javascript object that returns to Go as a js.Value, we
associate the ref id to it. But if this ref id is copied or
inherited to other object, it would mess up the ref-object
mapping.

In storeValue, make sure the object is indeed the one we are
storing. Otherwise allocate a new ref id.

Fixes #26143.

Change-Id: Ie60bb2f8d1533da1bbe6f46045866515ec2af5a9
Reviewed-on: https://go-review.googlesource.com/121835
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Richard Musiol <neelance@gmail.com>
2018-07-01 21:36:23 +00:00
Ian Lance Taylor
da769814b8 cmd/cgo: handle GCC 8 change in errors about constant initializers
Before GCC 8 C code like

const unsigned long long int neg = (const unsigned long long) -1;
void f(void) { static const double x = (neg); }

would get an error "initializer element is not constant". In GCC 8 and
later it does not.

Because a value like neg, above, can not be used as a general integer
constant, this causes cgo to conclude that it is a floating point
constant. The way that cgo handles floating point values then causes
it to get the wrong value for it: 18446744073709551615 rather than -1.
These are of course the same value when converted to int64, but Go
does not permit that kind of conversion for an out-of-range constant.

This CL side-steps the problem by treating floating point constants
with integer type as they would up being treated before GCC 8: as
variables rather than constants.

Fixes #26066

Change-Id: I6f2f9ac2fa8a4b8218481b474f0b539758eb3b79
Reviewed-on: https://go-review.googlesource.com/121035
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-29 23:22:48 +00:00
Ian Lance Taylor
f03ee913e2 misc/cgo/test: add retry loop around pthread_create in TestSigprocmask
This is the same retry loop we use in _cgo_try_pthread_create in runtime/cgo.

Fixes #25078

Change-Id: I7ef4d4fc7fb89cbfb674c4f93cbdd7a033dd8983
Reviewed-on: https://go-review.googlesource.com/121096
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-27 04:33:10 +00:00
Ian Lance Taylor
fbfd38c575 misc/cgo/test: skip Test18146 in short mode
Fixes #21219

Change-Id: I1a2ec1afe06586ed33a3a855b77536490cac3a38
Reviewed-on: https://go-review.googlesource.com/121115
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-27 04:31:53 +00:00
Richard Musiol
8997ec1c4e syscall/js: use stable references to JavaScript values
This commit changes how JavaScript values are referenced by Go code.
After this change, a JavaScript value is always represented by the same
ref, even if passed multiple times from JavaScript to Go. This allows
Go's == operator to work as expected on js.Value (strict equality).
Additionally, the performance of some operations of the syscall/js
package got improved by saving additional roundtrips to JavaScript code.

Fixes #25802.

Change-Id: Ide6ffe66c6aa1caf5327a2d3ddbe48fe7c180461
Reviewed-on: https://go-review.googlesource.com/120561
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-26 16:40:09 +00:00
Richard Musiol
9c35c1a503 syscall.js: add Value.InstanceOf
Change-Id: Icf56188fdb2b8ce6789830a35608203fdb9a3df6
Reviewed-on: https://go-review.googlesource.com/120560
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-25 17:03:20 +00:00
Michael Hudson-Doyle
d6a27e8edc cmd/link: never coalesce type descriptors when dynamically linking Go
Add a test by making misc/cgo/testshared/src/trivial.go marginally less
trivial.

Fixes #25970.

Change-Id: I8815d0c56b8850fcdbf9b45f8406f37bd21b6865
Reviewed-on: https://go-review.googlesource.com/120235
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-23 00:16:14 +00:00
Paul Jolly
4b3428998d misc/wasm: fix permissions on wasm_exec.js
Currently wasm_exec.js is executable (0755) yet has no interpreter.
Indeed wasm_exec.js is only ever used as an argument to Node or loaded
via a <script> tag in a browser-loaded HTML file.  Hence the execute
mode bits are superfluous and simply serve to clutter your PATH if
$GOROOT/misc/wasm is on your PATH (as is required if you want to run go
test syscall/js).

Change-Id: I279e2457094f8a12b9bf380ad7f1a9f47b22fc96
Reviewed-on: https://go-review.googlesource.com/120435
Run-TryBot: Paul Jolly <paul@myitcv.org.uk>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-21 22:55:55 +00:00
Ian Lance Taylor
29673a4be6 misc/cgo/test: avoid duplicate definition with gccgo
Current versions of gccgo issue a duplicate definition error when both
a definition and an empty declaration occur. Use build tags to avoid
that case for the issue9400 subdirectory.

Change-Id: I18517af87bab05e9ca43f2f295459cf34347c317
Reviewed-on: https://go-review.googlesource.com/119896
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-20 02:52:44 +00:00
Hiroshi Ioka
741dad28cb cmd/cgo: avoid name confliction for C functions
Use more cryptic names for local variables inside C function wrappers.

Fixes #23356

Change-Id: Ia6a0218f27a13be14f589b1a0facc9683d22ff56
Reviewed-on: https://go-review.googlesource.com/86495
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-18 18:28:02 +00:00
Fangming.Fang
ed99fcf1cf cmd/dist: run msan test only in testsanitizer on arm64
With latest gcc (7.3.0), misc/cgo/testsanitizer test will fail with reporting sigmentation
fault when running tsan test. On arm64, tsan is not supported currently and only msan test
can be run. So skip tsan test on arm64.

What needs to be pointed out is that msan test can be really run when setting clang
as c/c++ complier.

Fixes #25601

Change-Id: I6ab1a8d9edd243e2ee00ee40bc0abd6a0e6a125c
Reviewed-on: https://go-review.googlesource.com/114857
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-15 14:04:32 +00:00
Richard Musiol
2809b339b5 syscall/js: improve import functions
1. Make import functions not use the js.Value type directly,
but only the ref field. This gives more flexibility on the Go side
for the js.Value type, which is a preparation for adding
garbage collection of js.Value.

2. Turn import functions which are methods of js.Value into
package-level functions. This is necessary to make vet happy.

Change-Id: I69959bf1fbea0a0b99a552a1112ffcd0c024e9b8
Reviewed-on: https://go-review.googlesource.com/118656
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-15 02:09:34 +00:00
Richard Musiol
adf72bbc9a misc/wasm: add stub for fs.openSync for browsers
This stub is necessary so the time package can fail to load
the timezone files in a nice way. It transitively makes the
log package work in browsers.

Change-Id: I4d360df82989d9b40cd31bb4508a6d057534443e
Reviewed-on: https://go-review.googlesource.com/118977
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-15 00:04:15 +00:00
Richard Musiol
e083dc6307 runtime, sycall/js: add support for callbacks from JavaScript
This commit adds support for JavaScript callbacks back into
WebAssembly. This is experimental API, just like the rest of the
syscall/js package. The time package now also uses this mechanism
to properly support timers without resorting to a busy loop.

JavaScript code can call into the same entry point multiple times.
The new RUN register is used to keep track of the program's
run state. Possible values are: starting, running, paused and exited.
If no goroutine is ready any more, the scheduler can put the
program into the "paused" state and the WebAssembly code will
stop running. When a callback occurs, the JavaScript code puts
the callback data into a queue and then calls into WebAssembly
to allow the Go code to continue running.

Updates #18892
Updates #25506

Change-Id: Ib8701cfa0536d10d69bd541c85b0e2a754eb54fb
Reviewed-on: https://go-review.googlesource.com/114197
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-14 21:50:53 +00:00
Ian Lance Taylor
3a7cbfaa40 cmd/cgo: add import path to hash
This avoids name conflicts when two identical packages use cgo.
This can happen in practice when the same package is vendored multiple
times in a single build.

Fixes #23555

Change-Id: I9f0ec6db9165dcf9cdf3d314c668fee8ada18f9c
Reviewed-on: https://go-review.googlesource.com/118739
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-13 23:36:03 +00:00
Ian Lance Taylor
b8dc931326 misc/cgo/test: add test for passing compatible typedefs
Fixes #23720

Change-Id: I28e0c16503bc043f793e0dab19668f7a66313312
Reviewed-on: https://go-review.googlesource.com/118737
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-13 23:08:56 +00:00
Richard Musiol
72ce047a6c misc/wasm: remove use of performance.timeOrigin
This commit changes wasm_exec.js to not depend on the existence of
performance.timeOrigin. The field is not yet supported on all
browsers, e.g. it is unavailable on Safari.

Change-Id: I6cd3834376c1c55424c29166fde1219f0d4d338f
Reviewed-on: https://go-review.googlesource.com/118617
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-13 14:51:01 +00:00
Lynn Boger
30a63ecee3 runtime: restore r2 when restoring state from gobuf in gogo on ppc64x
When using plugins with goroutines calling cgo, we hit a case where
an intermittent SIGSEGV occurs when referencing an address that is based
on r2 (TOC address). When the failure can be generated in gdb, the
contents of r2 is wrong even though the value in the current stack's
slot for r2 is correct. So that means it somehow switched to start
running the code in this function without passing through the beginning
of the function which had the correct value of r2 and stored it there.

It was noted that in runtime.gogo when the state is restored from
gobuf, r2 is not restored from its slot on the stack. Adding the
instruction to restore r2 prevents the SIGSEGV.

This adds a testcase under testplugin which reproduces the problem if
the program is run multiple times. The team who reported this problem
has verified it fixes the issue on their larger, more complex
application.

Fixes #25756

Change-Id: I6028b6f1f8775d5c23f4ebb57ae273330a28eb8f
Reviewed-on: https://go-review.googlesource.com/117515
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-11 12:13:11 +00:00
Richard Musiol
96faeb0bb0 misc/wasm: set non-empty default for os.Args
os.Args is usually never empty and the flag package panics if it is.
This commit makes os.Args default to ["js"] for js/wasm.

Change-Id: Iba527145686487b052da438fca40159e57e61a81
Reviewed-on: https://go-review.googlesource.com/117475
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-08 21:07:22 +00:00
Richard Musiol
063f97a611 os: add js/wasm architecture
This commit adds the js/wasm architecture to the os package.

Access to the actual file system is supported through Node.js.

Updates #18892

Change-Id: I6fa642fb294ca020b2c545649d4324d981aa0408
Reviewed-on: https://go-review.googlesource.com/109977
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-01 05:18:38 +00:00
Yury Smolsky
57d40f1b27 test: remove rundircmpout and cmpout actions
This CL removes the rundircmpout action completely
because it is not used anywhere.

The run case already looks for output files. Rename the cmpout action
mentioned in tests to the run action and remove "cmpout" from run.go.

Change-Id: I835ceb70082927f8e9360e0ea0ba74f296363ab3
Reviewed-on: https://go-review.googlesource.com/115575
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-31 17:36:45 +00:00
Elias Naur
7ba1c91dd9 misc/android: forward SIGQUIT to the process running on the device
When a test binary runs for too long, the go command sends it a
SIGQUIT to force a backtrace dump. On Android, the exec wrapper
will instead receive the signal and dump its backtrace.

Forward SIGQUIT signals from the wrapper to the wrapped process
to gain useful backtraces.

Inspired by issuse 25519; this CL would have revealed the hanging
test directly in the builder log.

Change-Id: Ic362d06940d261374343a1dc09366ef54edaa631
Reviewed-on: https://go-review.googlesource.com/114137
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-23 18:18:39 +00:00
Ben Shi
5776bd558f misc/android: add a NL at the of README
There is no NL at the end of README, and that make it strange
when doing "cat misc/android/README".

Change-Id: Ib47953d7b16e8927a4d6be7d5be8de8f2ddbcc39
Reviewed-on: https://go-review.googlesource.com/114010
Reviewed-by: Elias Naur <elias.naur@gmail.com>
2018-05-23 05:54:14 +00:00
Richard Musiol
1771edb590 misc/wasm: make wasm_exec.js more flexible
This commit improves wasm_exec.js to give more control to the
code that uses this helper:
- Allow to load and run more than one Go program at the same time.
- Move WebAssembly.instantiate out of wasm_exec.js so the caller
  can optimize for load-time performance, e.g. by using
  instantiateStreaming.
- Allow caller to provide argv, env and exit callback.

Updates #18892

Change-Id: Ib582e6f43848c0118ea5c89f2e24b371c45c2050
Reviewed-on: https://go-review.googlesource.com/113515
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-18 18:16:50 +00:00
Richard Musiol
73b5951391 misc/wasm: fix passing large negative integers from JS to Go
This commit addresses a FIXME left in the code of wasm_exec.js to
properly get the upper 32 bit of a JS number to be stored as an
64-bit integer. A bitshift operation is not possible, because in
JavaScript bitshift operations only operate on the lower 32 bits.

Change-Id: I8f627fd604e592682d9d322942a4852db64a7f66
Reviewed-on: https://go-review.googlesource.com/113076
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-15 14:15:44 +00:00
Richard Musiol
db91ee3651 misc/wasm: pollute global JS namespace less
This commit changes wasm_exec.js so it only puts the single
name "go" into the global namespace. Other names became private
or were turned into a property/method of "go".

Change-Id: I633829dfd3c06936f092c0a14b9978bf855e41fe
Reviewed-on: https://go-review.googlesource.com/112980
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
2018-05-15 14:15:07 +00:00
Elias Naur
4122319e5a misc/ios: forward SIGQUIT to the iOS program
When running tests that fails to complete within the test timeout,
the go tool sends the test program a SIGQUIT signal to print
backtraces. However, for tests running with an exec wrapper, the
resulting backtraces will come from the exec wrapper process and
not the test program.

Change the iOS exec wrapper to forward SIGQUIT signals to the lldb
python driver and change the driver to forward the signals to the
running test on the device.

Before:

$ GOARCH=arm64 go test forever_test.go
lldb: running program
SIGQUIT: quit
PC=0x10816fe m=0 sigcode=0

goroutine 54 [syscall]:
syscall.Syscall6(0x7, 0x16ab, 0xc000033dfc, 0x0, 0xc000116f30, 0x0, 0x0, 0xc000116f30, 0x0, 0x1328820)
	/Users/elias/go-tip/src/syscall/asm_darwin_amd64.s:41 +0x5 fp=0xc000033d48 sp=0xc000033d40 pc=0x10816d5
syscall.wait4(0x16ab, 0xc000033dfc, 0x0, 0xc000116f30, 0x90, 0x1200e00, 0x1)
	/Users/elias/go-tip/src/syscall/zsyscall_darwin_amd64.go:34 +0x7b fp=0xc000033dc0 sp=0xc000033d48 pc=0x107e4eb
syscall.Wait4(0x16ab, 0xc000033e4c, 0x0, 0xc000116f30, 0xc0000fd518, 0x0, 0x0)
	/Users/elias/go-tip/src/syscall/syscall_bsd.go:129 +0x51 fp=0xc000033e10 sp=0xc000033dc0 pc=0x107b7b1
os.(*Process).wait(0xc00008d440, 0x1095e2e, 0xc0000fd518, 0x0)
	/Users/elias/go-tip/src/os/exec_unix.go:38 +0x7b fp=0xc000033e80 sp=0xc000033e10 pc=0x109af2b
os.(*Process).Wait(0xc00008d440, 0xc000033fb0, 0x10, 0x11d1f00)
	/Users/elias/go-tip/src/os/exec.go:125 +0x2b fp=0xc000033eb0 sp=0xc000033e80 pc=0x109a47b
os/exec.(*Cmd).Wait(0xc0000b1ce0, 0xc000033f90, 0x11394df)
	/Users/elias/go-tip/src/os/exec/exec.go:463 +0x5b fp=0xc000033f28 sp=0xc000033eb0 pc=0x1136f0b
main.startDebugBridge.func1(0xc0000b1ce0, 0xc0000b8ae0, 0xc0000e2a80)
	/Users/elias/go-tip/misc/ios/go_darwin_arm_exec.go:314 +0x40 fp=0xc000033fc8 sp=0xc000033f28 pc=0x11a1980
runtime.goexit()
	/Users/elias/go-tip/src/runtime/asm_amd64.s:1360 +0x1 fp=0xc000033fd0 sp=0xc000033fc8 pc=0x10565a1
created by main.startDebugBridge
	/Users/elias/go-tip/misc/ios/go_darwin_arm_exec.go:313 +0x15f

...

After:

$ GOARCH=arm64 go test forever_test.go
lldb: running program
=== RUN   TestForever
SIGQUIT: quit
PC=0x100144e24 m=0 sigcode=0

...

goroutine 19 [select (no cases)]:
command-line-arguments.TestForever(0x1300b60f0)
	/Users/elias/go-tip/src/forever_test.go:6 +0x18
testing.tRunner(0x1300b60f0, 0x100211aa0)
	/Users/elias/go-tip/src/testing/testing.go:795 +0xa8
created by testing.(*T).Run
	/Users/elias/go-tip/src/testing/testing.go:840 +0x22c

...

Change-Id: I6b3cf1662d07a43ade0530842733b0944bee1ace
Reviewed-on: https://go-review.googlesource.com/112676
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-05-11 16:47:28 +00:00
Elias Naur
25f73db0b6 misc/ios: update documentation for running iOS programs and tests
Change-Id: I8e3077ab9c7dff66877ac00dc4600b53c07eb1f8
Reviewed-on: https://go-review.googlesource.com/112655
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-10 18:01:20 +00:00
Ben Shi
f95ef94ad5 misc/android: add more information to README
Add more information to misc/android/README for developing
arm and arm64 with an Android environment.

Change-Id: I0c88996b6ab0c41946a2c7e69e9c92ec7bb3be27
Reviewed-on: https://go-review.googlesource.com/112276
Reviewed-by: Elias Naur <elias.naur@gmail.com>
2018-05-10 14:44:52 +00:00
Elias Naur
66cb80c266 misc/ios: inject the -u device_id option before any other arguments
The idevicedebugserverproxy command takes a port number without a
flag, like so:

idevicedebugserverproxy 3222

If the -u <device_id> flag is added afterwards, it is ignored and
the command use an arbitrary device. Instead, always inject the -u
flag before any other idevice command arguments.

While here, also kill any leftover idevicedebugserverproxy instance
previous (failed) runs might have left running.

Change-Id: I0bf06ed1a20ef225abeca183f9ba8f396662d435
Reviewed-on: https://go-review.googlesource.com/112216
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-09 07:16:07 +00:00
Elias Naur
704893b16b misc/ios: retry iOS launch even if no device app path was found
Now that the iOS exec wrapper uninstalls any existing test app before
installing a new, looking up the device app path might fail. Before,
the lookup always succeeded (even though the path reported might be
stale).

For the iOS builder.

Change-Id: I5667b6fae15f88745bdee796db219a429a26e203
Reviewed-on: https://go-review.googlesource.com/112075
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-05-08 15:00:57 +00:00
Richard Musiol
35ea62468b runtime: add js/wasm architecture
This commit adds the js/wasm architecture to the runtime package.
Currently WebAssembly has no support for threads yet, see
https://github.com/WebAssembly/design/issues/1073. Because of that,
there is no preemption of goroutines and no sysmon goroutine.

Design doc: https://docs.google.com/document/d/131vjr4DH6JFnb-blm_uRdaC0_Nv3OUwjEY5qVCxCup4
About WebAssembly assembly files: https://docs.google.com/document/d/1GRmy3rA4DiYtBlX-I1Jr_iHykbX8EixC3Mq0TCYqbKc

Updates #18892

Change-Id: I7f12d21b5180500d55ae9fd2f7e926a1731db391
Reviewed-on: https://go-review.googlesource.com/103877
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2018-05-08 00:17:34 +00:00
Richard Musiol
f41dc711d8 cmd/link: add wasm architecture
This commit adds the wasm architecture to the link command.

Design doc: https://docs.google.com/document/d/131vjr4DH6JFnb-blm_uRdaC0_Nv3OUwjEY5qVCxCup4

Updates #18892

Change-Id: I5aef29954984537f2979679b5d393209e462f564
Reviewed-on: https://go-review.googlesource.com/103795
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-05-07 23:29:33 +00:00
Elias Naur
9b16b9c7f9 misc/ios: uninstall app before installing it
Tests can fail because there is leftover data from a previous run.
For example:

--- FAIL: TestRemoveAll (0.00s)
	path_test.go:96: RemoveAll "/private/var/mobile/Containers/Data/Application/66247524-5ED7-45A4-82AA-6BF15D6078B2/tmp//_TestRemoveAll_" (first): open /private/var/mobile/Containers/Data/Application/66247524-5ED7-45A4-82AA-6BF15D6078B2/tmp//_TestRemoveAll_/dir: permission denied
FAIL
FAIL	os	31.275s

There seem to be no way to simply clear the app data for an app
short of uninstalling it, so do that.

This change in effect undoes CL 106676, which means that running iOS
is a little slower again, and that another app from the same
apple developer account must be present on the device for our app
install to succeed.

Change-Id: Iacc3a6f95c93568f4418db45e1098c7c7fdb88e0
Reviewed-on: https://go-review.googlesource.com/111795
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-07 19:22:23 +00:00
Elias Naur
164718ae2a misc/ios: improve detection of missing developer image
It turns out that a non-empty result from ideviceimagemounter does
not mean an image is mounted. Use ideviceimagemounter's xml output
mode to improve the check.

Also, iOS versions are reported as major.minor or major.minor.patch.
Developer images are only specific to major.minor version, so cut
off the patch number in the search, if present.

Change-Id: Ia182e6f4655b7e6aa6feb8005cd3b533535b73cd
Reviewed-on: https://go-review.googlesource.com/111235
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-05-04 05:47:22 +00:00
Richard Musiol
7b83636800 syscall/js: add package
This commit adds the syscall/js package, which is used by the wasm
architecture to access the WebAssembly host environment (and the
operating system through it). Currently, web browsers and Node.js
are supported hosts, which is why the API is based on JavaScript APIs.
There is no common API standardized in the WebAssembly ecosystem yet.

This package is experimental. Its current scope is only to allow
tests to run, but not yet to provide a comprehensive API for users.

Updates #18892

Change-Id: I236ea10a70d95cdd50562212f2c18c3db5009230
Reviewed-on: https://go-review.googlesource.com/109195
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-03 18:00:07 +00:00
Elias Naur
4704149e04 misc/ios: retry lldb launch if the iOS app is busy
Sometimes, a newly installed the test app is not ready to launch
or the reported app path is stale. Pause and retry the launch if
the lldb script did not run the program.

Change-Id: Ic7745d4b5a02f2e3cb8134341859039812f65a65
Reviewed-on: https://go-review.googlesource.com/111216
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-03 15:23:13 +00:00
Elias Naur
64f715beb6 misc/ios: clean up debugger instance on failure
Also replace repeated `or` clauses with the Python idiomatic list
operator `in`.

Change-Id: I4b178f93eb92996d8b5449ee5d252543624aed9e
Reviewed-on: https://go-review.googlesource.com/111215
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-03 15:15:27 +00:00
Elias Naur
8b9ecbf374 misc/ios: ensure deferred cleanup functions are run even on error
log.Fatal exits the process and doesn't allow deferred functions
to run. Extract log.Fatal calls to main where all deferred functions
have completed.

For the iOS builder.

Change-Id: Id1ef9955bed19944a819d6137a611d6ecbe624a6
Reviewed-on: https://go-review.googlesource.com/110955
Run-TryBot: Elias Naur <elias.naur@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-03 15:15:12 +00:00
Elias Naur
78cb5d7a68 misc/ios: retry app install
Sometimes ideviceinstaller fails to install the app. Retry a few
times before giving up.

For the iOS builder.

Change-Id: Ib066ffd4f97ae8d22c0fa9a78ea4d04f67c17410
Reviewed-on: https://go-review.googlesource.com/111055
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-03 07:45:46 +00:00
Elias Naur
8cd0094b4e misc/ios: don't override TMPDIR on idevice
If TMPDIR is not set, the iOS runtime will automatically set TMPDIR
to a valid app temporary path.

For the iOS builders.

Change-Id: Ia82404059dcb10678f0a6e0c96d5efc79a5485fd
Reviewed-on: https://go-review.googlesource.com/110956
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-02 19:44:38 +00:00
Hiroshi Ioka
a4aa2e0c28 cmd/cgo: visit cgo type inside ellipsis node
Fixes #25143

Change-Id: Ide654fe70651fda827cdeeaaa73d2a1f8aefd7e7
Reviewed-on: https://go-review.googlesource.com/110159
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-05-01 00:44:48 +00:00
Elias Naur
78219ab3fe misc/ios: script lldb directly with Python
The iOS exec wrapper uses ios-deploy to set up a device, install
the wrapped app, and start a lldb session to run it. ios-deploy is
not built to be scripted, as can be seen from the brittle way it is
driven by the Go wrapper. There are many timeouts and comments such
as

"
// lldb tries to be clever with terminals.
// So we wrap it in script(1) and be clever
// right back at it.
"

This CL replaces the use of ios-deploy with a lldb driver script in
Python. lldb is designed to be scripted, so apart from getting rid
of the ios-deploy dependency, we gain:

- No timouts and scripting ios-deploy through stdin and parsing
stdout for responses.
- Accurate exit codes.
- Prompt exits when the wrapped binary fails for some reason. Before,
the go test timeout would kick in to fail the test.
- Support for environment variables.
- No noise in the test output. Only the test binary output is output
from the wrapper.

We have to do more work with the lldb driver: mounting the developer
image on the device, running idevicedebugserverproxy and installing
the app. Even so, the CL removes almost as many lines as it adds.
Furthermore, having the steps split up helps to tell setup errors
from runtime errors.

Change-Id: I48cccc32f475d17987283b2c93aacc3da18fe339
Reviewed-on: https://go-review.googlesource.com/107337
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-30 16:17:42 +00:00
Richard Musiol
adb52cff58 misc/wasm: wasm_exec: non-zero exit code on compile error
Return a non-zero exit code if the WebAssembly host fails to compile
the WebAssmbly bytecode to machine code.

Change-Id: I774309db2872b6a2de77a1b0392608058414160d
Reviewed-on: https://go-review.googlesource.com/110097
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-27 20:57:51 +00:00
Hana Kim
9eb64bdd71 misc/trace: update trace_viewer_full.html
Change-Id: I919444886a264bc11026faa8ccda193bf09a8d8d
Reviewed-on: https://go-review.googlesource.com/109675
Reviewed-by: Heschi Kreinick <heschi@google.com>
2018-04-26 20:26:23 +00:00
Ian Lance Taylor
9c9ed9aa9d misc/cgo/test: log error value in testSigprocmask
The test has been flaky, probably due to EAGAIN, but let's find out
for sure.

Updates #25078

Change-Id: I5a5b14bfc52cb43f25f07ca7d207b61ae9d4f944
Reviewed-on: https://go-review.googlesource.com/109359
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-04-25 20:26:39 +00:00
Russ Cox
9e0e6981fc cmd/go: fix go list .Stale computation
If X depends on Y and X was installed but Y is only present in the cache
(as happens when you "go install X") then we should report X as up-to-date,
not as stale.

This applies whether X is a package or a main binary.

Fixes #24558.
Fixes #23818.

Change-Id: I26a0b375b1f7f7ac909cc0db68e92f4e04529208
Reviewed-on: https://go-review.googlesource.com/107957
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-04-25 20:19:19 +00:00
Ian Lance Taylor
be012e1e2e cmd/cgo: don't use absolute paths in the export header file
We were using absolute paths in the #line directives in the export
header file. This makes the header file change if you move GOPATH.
The absolute paths aren't helpful for the final user, which is some C
program elsewhere.

Fixes #24945

Change-Id: I2da32c9b477df578bd5087435a03fe97abe462e3
Reviewed-on: https://go-review.googlesource.com/108315
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-25 00:36:09 +00:00
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
Elias Naur
299b40b86d misc/ios: speed up the iOS exec wrapper
First, take the exclusive lock that ensures only one running binary
later: after assembling the gotest.app directory and signing it.

Second, don't pass -r to ios-deploy. The -r flag uninstalls the
app before installing it. It seems unnecessary, takes extra time
and if there was only the one developer app on the phone, it
will drop the developer permission on uninstall.

Change-Id: Ia222d3e5c2e1e2285f53074eb952941fd45fadd9
Reviewed-on: https://go-review.googlesource.com/106676
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-04-12 19:30:54 +00:00
Elias Naur
a44cd68663 misc/ios: don't wait for response to lldb run in the exec wrapper
CL 106096 changed the iOS exec wrapper to directly run the binary
without waiting for a SIGINT signal, but did so in a way that
expects a "(lldb)" response from lldb in 2 seconds. Lldb might
not out output anything until the program finishes, so change the
exec wrapper to just fire and forget the the run command and go
straight to waiting for exit, successfully or otherwise.

Change-Id: I6a2dc63f9b29fe44edb3591afb048b9a8e2e0822
Reviewed-on: https://go-review.googlesource.com/106176
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-04-11 22:04:25 +00:00
Elias Naur
c3cb44fdef misc/ios: make detect.go more robust
To enable the exec wrapper go_darwin_arm_exec.go to run binaries
on iOS devices, the GOIOS_DEV_ID variable needs to be set to a code
signing identity. The program detect.go attempts to detect suitable
values for GOIOS_DEV_ID (along with GOIOS_APP_ID and GOIOS_TEAM_ID).

Before this change, detect.go would use "security find-identity
-p codesigning -v" to list all available identities for code signing
and pick the first one with "iPhone Developer" in its name. However,
that pick might be invalid since if it was replaced by an identity
issued later.

For example, on the mobile builder:

$ security find-identity -p codesigning -v
  1) 0E251DE41FE4490574E475AC320B47F58D6D3635 "lldb_codesign"
  2) 0358588D07AA6A19478981BA405F40A97F95F187 "iPhone Developer: xxx@xxx (2754T98W8E)"
  3) FC6D96F24A3223C98BF7A2C2C5194D82E04CD23E "iPhone Developer: xxx@xxx (2754T98W8E)"
     3 valid identities found

In this case, the identity 0358588D07AA6A19478981BA405F40A97F95F187
is picked by detect.go even though it has been invalidated by
FC6D96F24A3223C98BF7A2C2C5194D82E04CD23E.

Instead of attempting to find an identity from the "security
find-identity" list, use the identity from the CommonName in the
embedded certificate in the provisioning file. The CommonName only
lists the identity name (iPhone Developer: xxx@xxx (2754T98W8E)),
not the fingerprint (FC6D96F24A3223C98BF7A2C2C5194D82E04CD23E), but
fortunately the codesign tool accepts both.

Identity names may not be unique, as demonstrated by the example,
but that will result in an ambiguity error at codesigning instead of
a more obscure error about an invalid identity when
go_darwin_arm_exec.go runs a binary.
The fix is then to delete the invalid identity from the system
keychain.

While here, find all connected devices instead of the first connected
and only consider provision files that covers them all. This matters
for the mobile builder where two devices are connected.

Change-Id: I6beb59ace3fc5e071ba76222a20a607765943989
Reviewed-on: https://go-review.googlesource.com/105436
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-04-10 16:36:33 +00:00
Elias Naur
144fae8ed5 misc/ios,runtime/cgo: remove SIGINT handshake for the iOS exec wrapper
Once upon a time, the iOS exec wrapper needed to change the current
working directory for the binary being tested. To allow that, the
runtime raised a SIGINT signal that the wrapper caught, changed the
working directory and resumed the process.

These days, the current working directory is passed from the wrapper
to the runtime through a special entry in the app metadata and the
SIGINT handshake is not necessary anymore.

Remove the signaling from the runtime and the exec harness.

Change-Id: Ia53bcc9e4724d2ca00207e22b91ce80a05271b55
Reviewed-on: https://go-review.googlesource.com/106096
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2018-04-10 16:30:07 +00:00
Richard Musiol
f63250238b misc/wasm: add scripts for running WebAssembly binaries
This commit adds scripts for running the WebAssembly binaries that the
Go compiler will produce.

The script go_js_wasm_exec uses Node.js to run the binaries. Adding it
to PATH will enable "go run" and "go test" to work for js/wasm
without having to manually provide the -exec flag.
See https://golang.org/cmd/go/#hdr-Compile_and_run_Go_program
for more information.

The web page wasm_exec.html is an example on how to run the same
binaries in a web browser.

Both scripts use wasm_exec.js as a shared library.

Updates #18892

Change-Id: Ia4d9bea025957750baa0d0651243dc88f156f85d
Reviewed-on: https://go-review.googlesource.com/103255
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-03-30 05:13:31 +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
Keith Randall
9d4215311b runtime: identify special functions by flag instead of address
When there are plugins, there may not be a unique copy of runtime
functions like goexit, mcall, etc.  So identifying them by entry
address is problematic.  Instead, keep track of each special function
using a field in the symbol table.  That way, multiple copies of
the same runtime function will be treated identically.

Fixes #24351
Fixes #23133

Change-Id: Iea3232df8a6af68509769d9ca618f530cc0f84fd
Reviewed-on: https://go-review.googlesource.com/100739
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-03-15 17:31:57 +00:00
Ilya Tocar
91102bf723 runtime: use bytes.IndexByte in findnull
bytes.IndexByte is heavily optimized. Use it in findnull.
This is second attempt, similar to CL97523.
In this version we never call IndexByte on region of memory,
that crosses page boundary. A bit slower than CL97523,
but still fast:

name        old time/op  new time/op  delta
GoString-6   164ns ± 2%   118ns ± 0%  -28.00%  (p=0.000 n=10+6)

findnull is also used in gostringnocopy,
which is used in many hot spots in the runtime.

Fixes #23830

Change-Id: Id843dd4f65a34309d92bdd8df229e484d26b0cb2
Reviewed-on: https://go-review.googlesource.com/98015
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-03-09 19:37:39 +00:00
Brad Fitzpatrick
1fadbc1a76 Revert "runtime: use bytes.IndexByte in findnull"
This reverts commit 7365fac2db.

Reason for revert: breaks the build on some architectures, reading unmapped pages?

Change-Id: I3a8c02dc0b649269faacea79ecd8213defa97c54
Reviewed-on: https://go-review.googlesource.com/97995
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-03-01 22:22:51 +00:00
Josh Bleecher Snyder
7365fac2db runtime: use bytes.IndexByte in findnull
bytes.IndexByte is heavily optimized.
Use it in findnull.

name        old time/op  new time/op  delta
GoString-8  65.5ns ± 1%  40.2ns ± 1%  -38.62%  (p=0.000 n=19+19)

findnull is also used in gostringnocopy,
which is used in many hot spots in the runtime.

Fixes #23830

Change-Id: I2e6cb279c7d8078f8844065de684cc3567fe89d7
Reviewed-on: https://go-review.googlesource.com/97523
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-03-01 20:34:07 +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
Kevin Burke
5158aab7d6 all: use HTTPS for iana.org links
iana.org, www.iana.org and data.iana.org all present a valid TLS
certificate, so let's use it when fetching data or linking to
resources to avoid errors in transit.

Change-Id: Ib3ce7c19789c4e9d982a776b61d8380ddc63194d
Reviewed-on: https://go-review.googlesource.com/89416
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-02-13 18:36:48 +00:00
Austin Clements
dfbf568c9f runtime: use NOFRAME on mips and mips64
This replaces frame size -4/-8 with the NOFRAME flag in mips and
mips64 assembly.

This was automated with:

sed -i -e 's/\(^TEXT.*[A-Z]\),\( *\)\$-[84]/\1|NOFRAME,\2$0/' $(find -name '*_mips*.s')

Plus a manual fix to mkduff.go.

The go binary is identical on both architectures before and after this
change.

Change-Id: I0310384d1a584118c41d1cd3a042bb8ea7227efb
Reviewed-on: https://go-review.googlesource.com/92044
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-02-12 21:41:32 +00:00
Austin Clements
beeabbcb25 runtime: use NOFRAME on arm64
This replaces frame size -8 with the NOFRAME flag in arm64 assembly.

This was automated with:

sed -i -e 's/\(^TEXT.*[A-Z]\),\( *\)\$-8/\1|NOFRAME,\2$0/' $(find -name '*_arm64.s')

Plus a manual fix to mkduff.go.

The go binary is identical before and after this change.

Change-Id: I0310384d1a584118c41d1cd3a042bb8ea7227efa
Reviewed-on: https://go-review.googlesource.com/92043
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-02-12 21:41:31 +00:00
Austin Clements
a046caa1e8 runtime, sync/atomic: use NOFRAME on arm
This replaces frame size -4 with the NOFRAME flag in arm assembly.

This was automated with:

sed -i -e 's/\(^TEXT.*[A-Z]\),\( *\)\$-4/\1|NOFRAME,\2$0/' $(find -name '*_arm.s')

Plus three manual comment changes found by:

grep '\$-4' $(find -name '*_arm.s')

The go binary is identical before and after this change.

Change-Id: I0310384d1a584118c41d1cd3a042bb8ea7227ef9
Reviewed-on: https://go-review.googlesource.com/92042
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-02-12 21:41:30 +00:00
Russ Cox
1dcb5836ad cmd/go: accept only limited compiler and linker flags in #cgo directives
Both gcc and clang accept an option -fplugin=code.so to load
a plugin from the ELF shared object file code.so.
Obviously that plugin can then do anything it wants
during the build. This is contrary to the goal of "go get"
never running untrusted code during the build.
(What happens if you choose to run the result of
the build is your responsibility.)

Disallow this behavior by only allowing a small set of
known command-line flags in #cgo CFLAGS directives
(and #cgo LDFLAGS, etc).

The new restrictions can be adjusted by the environment
variables CGO_CFLAGS_ALLOW, CGO_CFLAGS_DISALLOW,
and so on. See the documentation.

In addition to excluding cgo-defined flags, we also have to
make sure that when we pass file names on the command
line, they don't look like flags. So we now refuse to build
packages containing suspicious file names like -x.go.

A wrinkle in all this is that GNU binutils uniformly accept
@foo on the command line to mean "if the file foo exists,
then substitute its contents for @foo in the command line".
So we must also reject @x.go, flags and flag arguments
beginning with @, and so on.

Fixes #23672, CVE-2018-6574.

Change-Id: I59e7c1355155c335a5c5ae0d2cf8fa7aa313940a
Reviewed-on: https://team-review.git.corp.google.com/209949
Reviewed-by: Ian Lance Taylor <iant@google.com>
2018-02-07 15:35:57 +00:00
Ian Lance Taylor
c07095cd28 cmd/cgo: revert CL 49490 "fix for function taking pointer typedef"
CL 49490 fixed a warning when compiling the C code generated by cgo,
but it introduced typedef conflicts in Go code that cgo is supposed to
avoid.

Original CL description:

    cmd/cgo: fix for function taking pointer typedef

    Fixes #19832

Updates #19832
Fixes #23720

Change-Id: I22a732db31be0b4f7248c105277ab8ee44ef6cfb
Reviewed-on: https://go-review.googlesource.com/92455
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2018-02-07 01:20:30 +00:00
Ian Lance Taylor
2a8229d96e misc/cgo/test: get uintptr, not pointer, from dlopen
The dlopen function returns an opaque handle, and it is possible for
it to look like a Go pointer, causing garbage collector and cgo
confusion.

Fixes #23663

Change-Id: Id080e2bbcee8cfa7ac4a457a927f96949eb913f8
Reviewed-on: https://go-review.googlesource.com/91596
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-02-02 18:42:10 +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
4b3a3bd3aa runtime: don't issue cgocheck error for timer bucket source pointer
The cgo checker was issuing an error with cgocheck=2 when a timer
bucket was stored in a pollDesc. The pollDesc values are allocated
using persistentalloc, so they are not in the Go heap. The code is OK
since timer bucket pointers point into a global array, and as such are
never garbage collected or moved.

Mark timersBucket notinheap to avoid the problem. timersBucket values
only occur in the global timers array.

Fixes #23435

Change-Id: I835f31caafd54cdacc692db5989de63bb49e7697
Reviewed-on: https://go-review.googlesource.com/87637
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-01-15 22:18:55 +00:00
Ian Lance Taylor
9745eed4fd cmd/go: make gccgo -buildmode=shared and -linkshared work again
After CL 69831, addTransitiveLinkDeps ensures that all dependencies of
a link appear in Deps. We no longer need to traverse through all
actions to find them. And the old scheme of looking through all the
actions and assuming we would see shared library actions before
libraries they depend on no longer works.

Now that we have complete deps, change to a simpler scheme in which we
find the shared libraries in the deps, and then use that to sort the
deps into archives and shared libraries.

Fixes #22224

Change-Id: I14fcc773ac59b6f5c2965cc04d4ed962442cc89e
Reviewed-on: https://go-review.googlesource.com/87497
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-01-12 05:25:55 +00:00
Ian Lance Taylor
fe49d100e4 misc/cgo/test: avoid endless loop when we can't parse notes
Change-Id: I085870d978a3a560588711882c77060d136d867a
Reviewed-on: https://go-review.googlesource.com/87415
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-01-11 19:55:49 +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
Kunpei Sakai
e858a6b9f0 all: use Fatalf instead of Fatal if format is given
Change-Id: I30e9b938bb19ed4e674c3ea4a1cd389b9c4f0b88
Reviewed-on: https://go-review.googlesource.com/86875
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-01-10 01:35:45 +00:00
Keith Randall
36aa2b036d cmd/cgo: make JNI's jobject type map to uintptr in Go
The jobject type is declared as a pointer, but some JVMs
(Dalvik, ART) store non-pointer values in them. In Go, we must
use uintptr instead of a real pointer for these types.

This is similar to the CoreFoundation types on Darwin which
were "fixed" in CL 66332.

Update #22906
Update #21897

RELNOTE=yes

Change-Id: I0d4c664501d89a696c2fb037c995503caabf8911
Reviewed-on: https://go-review.googlesource.com/81876
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-12-08 16:13:14 +00:00
Russ Cox
fe2869cbfe misc/cgo/testplugin: unskip test
Fixed by CL 76025 yesterday, without realizing it:
the testshared and testplugin builds of separate iface_i
packages were colliding incorrectly in the cache.
Including the build directory fixes that.

Fixes #22571.

Change-Id: Id8193781c67c3150823dc1f48eae781dfe3702fb
Reviewed-on: https://go-review.googlesource.com/76371
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2017-12-06 18:57:07 +00:00
Elias Naur
03c93eaa0b misc/ios: dump logs for failing lldb sessions to stdout
The iOS test harness dumps the output of its lldb session to stdout,
but only if the lldb session was successfully started.
Make sure the log is always dumpede, so that lldb startup failures
such as

lldb setup error: exited (lldb start: exit status 253)

can be diagnosed.

For the iOS builders.

Change-Id: Ie0e3341dd8f84a88d26509c34816668d3ebbfaa0
Reviewed-on: https://go-review.googlesource.com/76195
Run-TryBot: Elias Naur <elias.naur@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2017-12-04 17:48:58 +00:00
Ian Lance Taylor
bfa7a558bf cmd/cgo: for C bitfields use only valid Go integer types
Fixes #22958

Change-Id: Ib078a5f6e1105a2afca77c6d9a05f65ddf5d9010
Reviewed-on: https://go-review.googlesource.com/81435
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
2017-12-01 23:50:23 +00:00
Joe Tsai
b53088a634 Revert "go/printer: forbid empty line before first comment in block"
This reverts commit 08f19bbde1.

Reason for revert:
The changed transformation takes effect on a larger set
of code snippets than expected.

For example, this:
    func foo() {

        // Comment
        bar()

    }
becomes:
    func foo() {
        // Comment
        bar()

    }

This is an unintended consequence.

Change-Id: Ifca88d6267dab8a8170791f7205124712bf8ace8
Reviewed-on: https://go-review.googlesource.com/81335
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Joe Tsai <joetsai@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-12-01 01:12:26 +00:00
Jess Frazelle
4a483ce2ab cmd/cgo: fix for function taking pointer typedef
Fixes #19832

Change-Id: I7ce39c2c435d4716d8a42ac6784b4c87874c0e13
Reviewed-on: https://go-review.googlesource.com/49490
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2017-11-29 16:12:45 +00:00
Keith Randall
b868616b63 cmd/cgo: special case C ptr types to use uintptr
Some C types are declared as pointers, but C code
stores non-pointers in them.  When the Go garbage
collector sees such a pointer, it gets unhappy.

Instead, for these types represent them on the Go
side with uintptr.

We need this change to handle Apple's CoreFoundation
CF*Ref types. Users of these types might need to
update their code like we do in root_cgo_darwin.go.
The only change that is required under normal
circumstances is converting some nils to 0.
A go fix module is provided to help.

Fixes #21897

RELNOTE=yes

Change-Id: I9716cfb255dc918792625f42952aa171cd31ec1b
Reviewed-on: https://go-review.googlesource.com/66332
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-11-17 22:11:03 +00:00
Russ Cox
62dc3c3f0d cmd/go: fix swig support and run swig tests during run.bash
(The tests only run when swig is already installed on the local system.)

Change-Id: I172d106a68cfc746a1058f5a4bcf6761bab88912
Reviewed-on: https://go-review.googlesource.com/78175
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-11-16 17:19:19 +00:00
Ian Lance Taylor
918396b3e1 cmd/cgo: permit passing string values directly between Go and C
Permit the C preamble to use the _GoString_ type. Permit Go code to
pass string values directly to those C types. Add accessors for C
code to retrieve sizes and pointers.

Fixes #6907

Change-Id: I190c88319ec88a3ef0ddb99f342a843ba69fcaa3
Reviewed-on: https://go-review.googlesource.com/70890
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2017-11-15 03:36:54 +00:00
griesemer
ca2a886cba cmd/compile: record original and absolute file names for line directives
Also, with this change, error locations don't print absolute positions
in [] brackets following positions relative to line directives. To get
the absolute positions as well, specify the -L flag.

Fixes #22660.

Change-Id: I9ecfa254f053defba9c802222874155fa12fee2c
Reviewed-on: https://go-review.googlesource.com/77090
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2017-11-13 16:47:41 +00:00
Leigh McCulloch
8db19a4966 all: change github.com issue links to golang.org
The go repository contains a mix of github.com/golang/go/issues/xxxxx
and golang.org/issues/xxxxx URLs for references to issues in the issue
tracker. We should use one for consistency, and golang.org is preferred
in case the project moves the issue tracker in the future.

This reasoning is taken from a comment Sam Whited left on a CL I
recently opened: https://go-review.googlesource.com/c/go/+/73890.

In that CL I referenced an issue using its github.com URL, because other
tests in the file I was changing contained references to issues using
their github.com URL. Sam Whited left a comment on the CL stating I
should change it to the golang.org URL.

If new code is intended to reference issues via golang.org and not
github.com, existing code should be updated so that precedence exists
for contributors who are looking at the existing code as a guide for the
code they should write.

Change-Id: I3b9053fe38a1c56fc101a8b7fd7b8f310ba29724
Reviewed-on: https://go-review.googlesource.com/75673
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-11-04 04:13:41 +00:00