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21556 Commits

Author SHA1 Message Date
Brad Fitzpatrick
ee2ecc4552 bufio: add Reader.Discard
Reader.Discard is the complement to Peek. It discards the next n bytes
of input.

We already have Reader.Buffered to see how many bytes of data are
sitting available in memory, and Reader.Peek to get that that buffer
directly. But once you're done with the Peek'd data, you can't get rid
of it, other than Reading it.
Both Read and io.CopyN(ioutil.Discard, bufReader, N) are relatively
slow. People instead resort to multiple blind ReadByte calls, just to
advance the internal b.r variable.

I've wanted this previously, several people have asked for it in the
past on golang-nuts/dev, and somebody just asked me for it again in a
private email. There are a few places in the standard library we'd use
it too.

Change-Id: I85dfad47704a58bd42f6867adbc9e4e1792bc3b0
Reviewed-on: https://go-review.googlesource.com/2260
Reviewed-by: Russ Cox <rsc@golang.org>
2015-01-07 06:37:57 +00:00
Shenghou Ma
5f179c7cef runtime: fix build for race detector
This CL only fixes the build, there are two failing tests:
RaceMapBigValAccess1 and RaceMapBigValAccess2
in runtime/race tests. I haven't investigated why yet.

Updates #9516.

Change-Id: If5bd2f0bee1ee45b1977990ab71e2917aada505f
Reviewed-on: https://go-review.googlesource.com/2401
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-07 03:20:42 +00:00
Martin Möhrmann
e5864cd939 sort: optimize symMerge performance for blocks with one element
Use direct binary insertion instead of recursive calls to symMerge
when one of the blocks has only one element.

benchmark                   old ns/op      new ns/op      delta
BenchmarkStableString1K     421999         397629         -5.77%
BenchmarkStableInt1K        123422         120592         -2.29%
BenchmarkStableInt64K       9629094        9620200        -0.09%
BenchmarkStable1e2          123089         120209         -2.34%
BenchmarkStable1e4          39505228       36870029       -6.67%
BenchmarkStable1e6          8196612367     7630840157     -6.90%

Change-Id: I49905a909e8595cfa05920ccf9aa00a8f3036110
Reviewed-on: https://go-review.googlesource.com/2219
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-01-06 23:30:46 +00:00
Russ Cox
bc2601a1df runtime: allocate wbshadow at high address
sysReserve doesn't actually reserve the full amount requested on
64-bit systems, because of problems with ulimit. Instead it checks
that it can get the first 64 kB and assumes it can grab the rest as
needed. This doesn't work well with the "let the kernel pick an address"
mode, so don't do that. Pick a high address instead.

Change-Id: I4de143a0e6fdeb467fa6ecf63dcd0c1c1618a31c
Reviewed-on: https://go-review.googlesource.com/2345
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 22:28:52 +00:00
Russ Cox
9b638bf1bf runtime: adjust dropm for write barriers
The line 'mp.schedlink = mnext' has an implicit write barrier call,
which needs a valid g. Move it above the setg(nil).

Change-Id: If3e86c948e856e10032ad89f038bf569659300e0
Reviewed-on: https://go-review.googlesource.com/2347
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 22:23:14 +00:00
Russ Cox
949dd10222 misc/cgo: disable TestAllocateFromC in wbshadow mode
This test is doing pointer graph manipulation from C, and we
cannot support that with concurrent GC. The wbshadow mode
correctly diagnoses missing write barriers.

Disable the test in that mode for now. There is a bigger issue
behind it, namely SWIG, but for now we are focused on making
all.bash pass with wbshadow enabled.

Change-Id: I55891596d4c763e39b74082191d4a5fac7161642
Reviewed-on: https://go-review.googlesource.com/2346
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 22:22:59 +00:00
Brad Fitzpatrick
f5f69bba3b cmd/go: buffer output for go usage
It did tons of write syscalls before:
    https://www.youtube.com/watch?v=t60fhjAqBdw

This is the worst offender. It's not worth fixing all the cases of two
consecutive prints.

Change-Id: I95860ef6a844d89b149528195182b191aad8731b
Reviewed-on: https://go-review.googlesource.com/2371
Reviewed-by: Rob Pike <r@golang.org>
2015-01-06 20:31:35 +00:00
Adam Langley
ea64e5785d crypto/tls: fix renegotiation extension.
There are two methods by which TLS clients signal the renegotiation
extension: either a special cipher suite value or a TLS extension.

It appears that I left debugging code in when I landed support for the
extension because there's a "+ 1" in the switch statement that shouldn't
be there.

The effect of this is very small, but it will break Firefox if
security.ssl.require_safe_negotiation is enabled in about:config.
(Although almost nobody does this.)

This change fixes the original bug and adds a test. Sadly the test is a
little complex because there's no OpenSSL s_client option that mirrors
that behaviour of require_safe_negotiation.

Change-Id: Ia6925c7d9bbc0713e7104228a57d2d61d537c07a
Reviewed-on: https://go-review.googlesource.com/1900
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-06 19:50:07 +00:00
Adam Langley
b1370742ee crypto/rsa: rsa.SignPSS with opts=nil shouldn't crash.
SignPSS is documented as allowing opts to be nil, but actually
crashes in that case. This change fixes that.

Change-Id: Ic48ff5f698c010a336e2bf720e0f44be1aecafa0
Reviewed-on: https://go-review.googlesource.com/2330
Reviewed-by: Minux Ma <minux@golang.org>
2015-01-06 19:18:28 +00:00
Russ Cox
02f89331c2 runtime: fix two garbage collector bugs
First, call clearcheckmarks immediately after changing checkmark,
so that there is less time when the checkmark flag and the bitmap
are inconsistent. The tiny gap between the two lines is fine, because
the world is stopped. Before, the gap was much larger and included
such code as "go bgsweep()", which allocated.

Second, modify gcphase only when the world is stopped.
As written, gcscan_m was changing gcphase from 0 to GCscan
and back to 0 while other goroutines were running.
Another goroutine running at the same time might decide to
sleep, see GCscan, call gcphasework, and start "helping" by
scanning its stack. That's fine, except that if gcphase flips back
to 0 as the goroutine calls scanblock, it will start draining the
work buffers prematurely.

Both of these were found wbshadow=2 (and a lot of hard work).
Eventually that will run automatically, but right now it still
doesn't quite work for all.bash, due to mmap conflicts with
pthread-created threads.

Change-Id: I99aa8210cff9c6e7d0a1b62c75be32a23321897b
Reviewed-on: https://go-review.googlesource.com/2340
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 15:10:13 +00:00
Russ Cox
ff979626fc cmd/gc: add write barrier for append(slice, slice...)
Found with GODEBUG=wbshadow=2 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: I5624b509a36650bce6834cf394b9da163abbf8c0
Reviewed-on: https://go-review.googlesource.com/2310
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 14:41:45 +00:00
Alex Brainman
03d6637dbb runtime: do not display Windows Error Reporting dialogue
Fixes #9121

Change-Id: Id6ca9f259260310c4c6cbdabbc8f2fead8414e6a
Reviewed-on: https://go-review.googlesource.com/2202
Reviewed-by: Minux Ma <minux@golang.org>
2015-01-06 05:31:40 +00:00
Shenghou Ma
a6a30fefd9 runtime: fix build for ARM
Change-Id: Ia18b8411bebc47ea71ac1acd9ff9dc570ec15dea
Reviewed-on: https://go-review.googlesource.com/2341
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-01-06 01:29:42 +00:00
Russ Cox
df027aceb9 reflect: add write barriers
Use typedmemmove, typedslicecopy, and adjust reflect.call
to execute the necessary write barriers.

Found with GODEBUG=wbshadow=2 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: Iec5b5b0c1be5589295e28e5228e37f1a92e07742
Reviewed-on: https://go-review.googlesource.com/2312
Reviewed-by: Keith Randall <khr@golang.org>
2015-01-06 00:28:31 +00:00
Russ Cox
813386f200 sync/atomic: remove atomic pointer hammer tests
These depend on storing arbitrary integer values using
pointer atomics, and we can't support that anymore.

Change-Id: I8cadd6d462c3eebdbe7078f43fe7c779fa8f52b3
Reviewed-on: https://go-review.googlesource.com/2311
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 00:28:22 +00:00
Russ Cox
ccdb50931f cmd/gc, runtime: make assertI2T and variants not variadic
A side effect of this change is that when assertI2T writes to the
memory for the T being extracted, it can use typedmemmove
for write barriers.

There are other ways we could have done this, but this one
finishes a TODO in package runtime.

Found with GODEBUG=wbshadow=2 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: Icbc8aabfd8a9b1f00be2e421af0e3b29fa54d01e
Reviewed-on: https://go-review.googlesource.com/2279
Reviewed-by: Keith Randall <khr@golang.org>
2015-01-06 00:28:03 +00:00
Russ Cox
e5ef657264 cmd/gc: add write barrier in copy of function parameters to heap
Found with GODEBUG=wbshadow=2 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: I1320d5340a9e421c779f24f3b170e33974e56e4f
Reviewed-on: https://go-review.googlesource.com/2278
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 00:27:49 +00:00
Russ Cox
54bb4dc390 runtime: use typed memmove (write barriers) for chan, map, interface content
Found with GODEBUG=wbshadow=2 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: Iea83d693480c2f3008b4e80d55821acff65970a6
Reviewed-on: https://go-review.googlesource.com/2277
Reviewed-by: Keith Randall <khr@golang.org>
2015-01-06 00:27:29 +00:00
Russ Cox
bcadab9349 cmd/gc, runtime: rename writebarrierfat to typedmemmove
Preparation for replacing many memmove calls in runtime
with typedmemmove, which is a clearer description of what
the routine is doing.

For the same reason, rename writebarriercopy to typedslicecopy.

Change-Id: I6f23bef2c2215509fefba175b16908f76dc7538c
Reviewed-on: https://go-review.googlesource.com/2276
Reviewed-by: Rick Hudson <rlh@golang.org>
2015-01-06 00:27:20 +00:00
Russ Cox
7b4df8f018 runtime, sync/atomic: add write barrier for atomic write of pointer
Add write barrier to atomic operations manipulating pointers.

In general an atomic write of a pointer word may indicate racy accesses,
so there is no strictly safe way to attempt to keep the shadow copy
in sync with the real one. Instead, mark the shadow copy as not used.

Redirect sync/atomic pointer routines back to the runtime ones,
so that there is only one copy of the write barrier and shadow logic.
In time we might consider doing this for most of the sync/atomic
functions, but for now only the pointer routines need that treatment.

Found with GODEBUG=wbshadow=1 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: I852936b9a111a6cb9079cfaf6bd78b43016c0242
Reviewed-on: https://go-review.googlesource.com/2066
Reviewed-by: Rick Hudson <rlh@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2015-01-06 00:27:06 +00:00
Russ Cox
eafc482d4f runtime: change Gobuf.g to uintptr, not pointer
The Gobuf.g goroutine pointer is almost always updated by assembly code.
In one of the few places it is updated by Go code - func save - it must be
treated as a uintptr to avoid a write barrier being emitted at a bad time.
Instead of figuring out how to emit the write barriers missing in the
assembly manipulation, change the type of the field to uintptr, so that
it does not require write barriers at all.

Goroutine structs are published in the allg list and never freed.
That will keep the goroutine structs from being collected.
There is never a time that Gobuf.g's contain the only references
to a goroutine: the publishing of the goroutine in allg comes first.

Goroutine pointers are also kept in non-GC-visible places like TLS,
so I can't see them ever moving. If we did want to start moving data
in the GC, we'd need to allocate the goroutine structs from an
alternate arena. This CL doesn't make that problem any worse.

Found with GODEBUG=wbshadow=1 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: I85f91312ec3e0ef69ead0fff1a560b0cfb095e1a
Reviewed-on: https://go-review.googlesource.com/2065
Reviewed-by: Rick Hudson <rlh@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2015-01-06 00:26:54 +00:00
Russ Cox
a73c1cef07 runtime: add missing write barriers in append's copy of slice data
Found with GODEBUG=wbshadow=1 mode.
Eventually that will run automatically, but right now
it still detects other missing write barriers.

Change-Id: Ic8624401d7c8225a935f719f96f2675c6f5c0d7c
Reviewed-on: https://go-review.googlesource.com/2064
Reviewed-by: Rick Hudson <rlh@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2015-01-06 00:26:45 +00:00
Russ Cox
dcec123a49 runtime: add GODEBUG wbshadow for finding missing write barriers
This is the detection code. It works well enough that I know of
a handful of missing write barriers. However, those are subtle
enough that I'll address them in separate followup CLs.

GODEBUG=wbshadow=1 checks for a write that bypassed the
write barrier at the next write barrier of the same word.
If a bug can be detected in this mode it is typically easy to
understand, since the crash says quite clearly what kind of
word has missed a write barrier.

GODEBUG=wbshadow=2 adds a check of the write barrier
shadow copy during garbage collection. Bugs detected at
garbage collection can be difficult to understand, because
there is no context for what the found word means.
Typically you have to reproduce the problem with allocfreetrace=1
in order to understand the type of the badly updated word.

Change-Id: If863837308e7c50d96b5bdc7d65af4969bf53a6e
Reviewed-on: https://go-review.googlesource.com/2061
Reviewed-by: Austin Clements <austin@google.com>
2015-01-06 00:26:35 +00:00
Josh Bleecher Snyder
3191a23515 go/doc: propagate types from unexported constants
When constants were declared using unexported constants,
the type information was lost when those constants were filtered out.
This CL propagates the type information of unexported constants
so that it is available for display.

This is a follow-up to CL 144110044, which fixed this problem
specifically for _ constants.

Updates #5397.

Change-Id: I3f0c767a4007d88169a5634ab2870deea4e6a740
Reviewed-on: https://go-review.googlesource.com/2091
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-01-06 00:24:13 +00:00
Shenghou Ma
43178697db math/big: panic if n <= 0 for ProbablyPrime
Fixes #9509

Change-Id: I3b86745d38e09093fe2f4b918d774bd6608727d7
Reviewed-on: https://go-review.googlesource.com/2313
Reviewed-by: Robert Griesemer <gri@golang.org>
2015-01-05 23:11:35 +00:00
Brad Fitzpatrick
b70ddc0b51 runtime: only check whether the runtime is stale once during tests
Noticed while investigating the speed of the runtime tests, as part
of debugging while Plan 9's runtime tests are timing out on GCE.

Change-Id: I95f5a3d967a0b45ec1ebf10067e193f51db84e26
Reviewed-on: https://go-review.googlesource.com/2283
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-05 21:33:27 +00:00
Christopher Guiney
ae266aaa9d doc: Added link to 'go help gopath'
The existing go code document did not link to the GOPATH documentation.
This will link to it, in hopes of making it more discoverable.

Change-Id: Ie4ded2fdce08f412e4acbcc93acdd76f5791b84a
Reviewed-on: https://go-review.googlesource.com/2265
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-05 21:24:39 +00:00
Fazlul Shahriar
e6f76aac32 math: be consistent in how we document special cases
Change-Id: Ic6bc4af7bcc89b2881b2b9e7290aeb6fd54804e2
Reviewed-on: https://go-review.googlesource.com/2239
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-05 21:01:46 +00:00
Russ Cox
e6d3511264 Revert "liblink, cmd/ld, runtime: remove stackguard1"
This reverts commit ab0535ae3f.

I think it will remain useful to distinguish code that must
run on a system stack from code that can run on either stack,
even if that distinction is no
longer based on the implementation language.

That is, I expect to add a //go:systemstack comment that,
in terms of the old implementation, tells the compiler,
to pretend this function was written in C.

Change-Id: I33d2ebb2f99ae12496484c6ec8ed07233d693275
Reviewed-on: https://go-review.googlesource.com/2275
Reviewed-by: Russ Cox <rsc@golang.org>
2015-01-05 16:29:56 +00:00
Shenghou Ma
a1c9e10371 reflect: document that Values can't be compared directly
Fixes #9504.

Change-Id: I148f407ace3d1b4db3f19fbb8561d1ee6c4c13b3
Reviewed-on: https://go-review.googlesource.com/2273
Reviewed-by: Rob Pike <r@golang.org>
2015-01-05 09:11:44 +00:00
Mikio Hara
a1053ed610 crypto/x509: add missing copyright
Change-Id: Ida3b431a06527f6cd604ab4af5ce517959c8619b
Reviewed-on: https://go-review.googlesource.com/2306
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-01-05 07:32:02 +00:00
Mikio Hara
35132a6be8 crypto/x509: fix nacl build
Change-Id: Ie47c6460c1749aef3cf6d7c6ba44d43305d7ca7b
Reviewed-on: https://go-review.googlesource.com/2305
Reviewed-by: Minux Ma <minux@golang.org>
2015-01-05 06:31:49 +00:00
Dave Cheney
682922908f crypto/x509: split certFiles definition by GOOS
This CL splits the (ever growing) list of ca cert locations by major unix
platforms (darwin, windows and plan9 are already handled seperately).
Although it is clear the unix variants cannot manage to agree on some standard
locations, we can avoid to some extent an artificial ranking of priority
amongst the supported GOOSs.

* Split certFiles definition by GOOS
* Include NetBSD ca cert location

Fixes #9285

Change-Id: I6df2a3fddf3866e71033e01fce43c31e51b48a9e
Reviewed-on: https://go-review.googlesource.com/2208
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-05 05:41:27 +00:00
Nigel Tao
0b52392ef7 image: use three-index slice for NewYCbCr.
This ensures that changing an image.YCbCr's Y values can't change its
chroma values, even after re-slicing up to capacity.

Change-Id: Icb626561522e336a3220e10f456c95330ae7db9e
Reviewed-on: https://go-review.googlesource.com/2209
Reviewed-by: Rob Pike <r@golang.org>
2015-01-05 03:32:15 +00:00
Andrew Gerrand
43ce5c0306 log: update doc comment
Fixes #9448.

Change-Id: I8e1d676688d9e9b2fa3519ebc530905f574a1b3e
Reviewed-on: https://go-review.googlesource.com/2088
Reviewed-by: Rob Pike <r@golang.org>
2015-01-05 01:21:52 +00:00
Shenghou Ma
9a5789d499 fmt: fix two typos
Change-Id: I7b65cf3b67bef8950115066d6d12b25cd0a5edfc
Reviewed-on: https://go-review.googlesource.com/2272
Reviewed-by: Rob Pike <r@golang.org>
2015-01-04 23:07:43 +00:00
Michael Hudson-Doyle
19f2bd8c2e cmd/go: be more careful when linking a test exe with gccgo
Previously, we ended up passing two compiled objects for the package
being tested when linking the test executable.  Somewhat by luck, this
worked most of the time but occasionally it did not.  This changes the
linking code to not pass two objects for the same ImportPath and to
always pass the object for the test version of the package and removes
some unecessary nil checks.

Change-Id: I7bbd3fc708f14672ee2cc6aed3397421fceb8a38
Reviewed-on: https://go-review.googlesource.com/1840
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-04 21:01:15 +00:00
Shenghou Ma
281ae92881 liblink: fix encoding of SETcc for amd64
liblink used to encode both SETEQ BP and SETEQ CH as 0f 94 c5,
however, SETEQ BP should have used a REX prefix.

Fixes #8545.

Change-Id: Ie59c990cdd0ec506cffe4318e9ad1b48db5e57dd
Reviewed-on: https://go-review.googlesource.com/2270
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-01-04 20:38:12 +00:00
Michael Fraenkel
48d63035ce reflect: set dir when creating a channel via ChanOf
Fixes #9135

Change-Id: I4d0e4eb52a3d64262f107eb7eae4096a6e47ac08
Reviewed-on: https://go-review.googlesource.com/2238
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-04 19:42:14 +00:00
Ian Lance Taylor
1ebfb082a7 runtime: remove unnecessary GOOS switch
Change-Id: I8f518e273c02110042b08f7c50c3d38a648c8b6e
Reviewed-on: https://go-review.googlesource.com/2281
Reviewed-by: Minux Ma <minux@golang.org>
2015-01-04 19:41:05 +00:00
Mikio Hara
2958860ee8 net: add test cases for parsing ipv4-mapped ipv6 address
This CL adds missing ipv4-mapped ipv6 address test cases to TestParseIP.

Change-Id: I3144d2a88d409bd515cf52f8711d407bfa81ed68
Reviewed-on: https://go-review.googlesource.com/2205
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-04 10:28:00 +00:00
Matthew Dempsky
537ddc9456 runtime: fix slicecopy return value for zero-width elements
Fixes #8620

Change-Id: Idb49e586919d21d07e94a39ed9ebb0562f403460
Reviewed-on: https://go-review.googlesource.com/2221
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-04 01:59:59 +00:00
Shenghou Ma
865e5e98b6 runtime: fix TestCgoExternalThreadSIGPROF again
Shell out to `uname -r` this time, so that the test will compile
even if the platform doesn't have syscall.Sysctl.

Change-Id: I3a19ab5d820bdb94586a97f4507b3837d7040525
Reviewed-on: https://go-review.googlesource.com/2271
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-03 05:49:22 +00:00
Shenghou Ma
2cbe27a272 runtime: skip TestCgoExternalThreadSIGPROF on OS X 10.6
The test program requires static constructor, which in turn needs
external linking to work, but external linking never works on 10.6.

This should fix the darwin-{386,amd64} builders.

Change-Id: I714fdd3e35f9a7e5f5659cf26367feec9412444f
Reviewed-on: https://go-review.googlesource.com/2235
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-03 03:18:46 +00:00
Brad Fitzpatrick
0e05bd59ac doc: add a section for performance improvements in go1.5.txt
Mostly I need to tickle the builders, since I'm working on the
dashboard builders right now.

Change-Id: I833fc22bc942758a58791ed038634cdd812f5411
Reviewed-on: https://go-review.googlesource.com/2261
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-02 22:42:28 +00:00
Josh Bleecher Snyder
17577e48c9 runtime: use SETEQ instead of JZ for cas
Change-Id: Ibabbca3988d39bdce584924173a912d45f50f0dd
Reviewed-on: https://go-review.googlesource.com/2243
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Minux Ma <minux@golang.org>
2015-01-02 19:06:36 +00:00
Josh Bleecher Snyder
8bbd80063b cmd/go: put user ldflags at the end of the linker invocation
If the user provided a key but no value via -ldflag -X,
another linker flag was used as the value.

Placing the user's flags at the end avoids this problem.
It also provides the user the opportunity to
override existing linker flags.

Fixes #8810.

Change-Id: I96f4190713dc9a9c29142e56658446fba7fb6bc8
Reviewed-on: https://go-review.googlesource.com/2242
Reviewed-by: Minux Ma <minux@golang.org>
2015-01-02 18:36:44 +00:00
Martin Möhrmann
79c4fad8c2 os: replace itod on posix with general itoa and fix possible infinite recursion
Remove use of itod on posix systems and replace with call to itoa.
Build and use same itoa function on all systems.
Fix infinite recursion in iota function for the case -1<<63.

Change-Id: I89d7e742383c5c4aeef8780501c78a3e1af87a6f
Reviewed-on: https://go-review.googlesource.com/2213
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-02 16:21:18 +00:00
Alberto Donizetti
307e2706cb cmd/gc: update issue tracker link
Updated the issue tracker link the compiler prints out
when asking for a bug report after an internal error.

Change-Id: I092b118130f131c6344d9d058bea4ad6379032b8
Reviewed-on: https://go-review.googlesource.com/2218
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-02 15:45:17 +00:00
Shenghou Ma
29c85739d5 include: remove unnecessary stuff on windows
Our definition of struct timespec used to cause problems with
certain versions of mingw-rt. However, as it turns out, we don't
actually need those definitions and prototypes, so remove them.

Fixes #9472.

Change-Id: Ie0880f0d58be112625140f73d0bed71f98b7cf05
Reviewed-on: https://go-review.googlesource.com/2236
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2015-01-02 03:36:11 +00:00