Converted from rsc.io/c2go rev a9bc7f2.
Adds profiling support.

Change-Id: Ie04f86b71e0713c7294416c77d349e0d93798403
Reviewed-on: https://go-review.googlesource.com/5574Reviewed-by: Rob Pike <r@golang.org>

Change-Id: I10f7950d173b302151f2a31daebce297b4306ebe

This was supposed to be in the previous CL, but I forgot to 'git rw' it down.

Change-Id: Ia5e14ca2c7640f08abbbed1a777a6cf04d71d0e7
Reviewed-on: https://go-review.googlesource.com/5570Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I259e88f019b6818c57caaa1ec236b7c2e2ae1382
Reviewed-on: https://go-review.googlesource.com/5551Reviewed-by: Rob Pike <r@golang.org>

The wildcard 'std' is defined in documentation to be all the packages
in the Go standard library. It has also historically matched commands
in the main repo, but as we implement core commands in Go, that
becomes problematic. We need a wildcard that means just the library,
and since 'std' is already documented to have that definition, make it so.

Add a new wildcard 'cmd' for the commands in the main repo ($GOROOT).
Commands that want both can say 'std cmd' (or 'cmd std') to get the
effect of the old 'std'.

Update make.bash etc to say both std and cmd most of the time.

Exception: in race.bash, do not install race-enabled versions of
the actual commands. This avoids trying to write binaries while
using them, but more importantly it avoids enabling the race
detector and its associated memory overhead for the already
memory-hungry compilers.

Change-Id: I26bb06cb13b636dfbe71a015ee0babeb270a0275
Reviewed-on: https://go-review.googlesource.com/5550
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Rob Pike <r@golang.org>

cpp: src/cmd/ld/lib.h:349 No newline at end of file

Change-Id: Id21851963f7778364ba9337da3bacd312443f51f
Reviewed-on: https://go-review.googlesource.com/5520Reviewed-by: Minux Ma <minux@golang.org>

Change-Id: I239ae86cfebfece607dce39a96d9123cbacbee7d
Reviewed-on: https://go-review.googlesource.com/5562
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>

Change-Id: I05cdf357249166a45105703e9317793aa2088844
Reviewed-on: https://go-review.googlesource.com/5560Reviewed-by: Andrew Gerrand <adg@golang.org>

With a trivial Golang-built program loaded in gdb-7.8.90.20150214-7.fc23.x86_64
I get this error:

(gdb) source ./src/runtime/runtime-gdb.py
Loading Go Runtime support.
Traceback (most recent call last):
  File "./src/runtime/runtime-gdb.py", line 230, in <module>
    _rctp_type = gdb.lookup_type("struct reflect.rtype").pointer()
gdb.error: No struct type named reflect.rtype.
(gdb) q

No matter if this struct should or should not be in every Golang-built binary
this change should fix that with no disadvantages.

Change-Id: I0c490d3c9bbe93c65a2183b41bfbdc0c0f405bd1
Reviewed-on: https://go-review.googlesource.com/5521Reviewed-by: Ian Lance Taylor <iant@golang.org>

Change-Id: I6011e162214db2d65efc1ecdb5ec600ca8e5bfe9
Reviewed-on: https://go-review.googlesource.com/5542Reviewed-by: Ian Lance Taylor <iant@golang.org>

Need to add testdata to NaCl's testing file system.

Change-Id: Ie9703b5475c7f87e737a06de85d1f88e2062f090
Reviewed-on: https://go-review.googlesource.com/5541Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ia6cf3204d71740bc2b6e26c53ac5206e8a33a180
Reviewed-on: https://go-review.googlesource.com/5540Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ic7367f2c6e6d4e6b802ce8436022412a1862ca58
Reviewed-on: https://go-review.googlesource.com/5472Reviewed-by: Rob Pike <r@golang.org>

Reconvert using rsc.io/c2go rev 27b3f59.
(Same as last conversion, but C sources have changed
due to merging master into this branch.)

Change-Id: Ib314bb9ac14a726ceb83e2ecf4d1ad2d0b331c38
Reviewed-on: https://go-review.googlesource.com/5471Reviewed-by: Rob Pike <r@golang.org>

This time for sure.

Change-Id: I77ed6b70d82a6f4ba371afba2f53c8b146ac110f
Reviewed-on: https://go-review.googlesource.com/5530Reviewed-by: Rob Pike <r@golang.org>

Representation in printout of MRC instruction differs between
32- and 64-bit machines. It's just a hex dump. Fix this one day,
but for now just comment out the instruction.

Change-Id: I4709390659e2e0f2d18ff6f8e762f97cdbfb4c16
Reviewed-on: https://go-review.googlesource.com/5424Reviewed-by: Rob Pike <r@golang.org>

Add trivial golden test that verifies output matches expectation.
The input is based on the old grammar and is intended to cover
the space of the input language.

PPC64 and ARM only for now; others to follow.

Change-Id: Ib5957822bcafd5b9d4c1dea1c03cc6ee1238f7ef
Reviewed-on: https://go-review.googlesource.com/5421Reviewed-by: Russ Cox <rsc@golang.org>

As with the previous round for ppc64, this CL fixes a couple of things
that 5a supported but asm did not, both simple.

1) Allow condition code on MRC instruction; this was marked as a TODO.
2) Allow R(n) notation in ARM register shifts.  The code needs a rethink
but the tests we're leading toward will make the rewrite easier to test and
trust.

Change-Id: I5b52ad25d177a74cf07e089dddfeeab21863c424
Reviewed-on: https://go-review.googlesource.com/5422Reviewed-by: Russ Cox <rsc@golang.org>

Applying my post-submit comments from CL 5120.
The rewrite there changed the code from writing to the stack
frame to writing below the stack frame.

Change-Id: Ie7e0563c0c1731fede2bcefeaf3c9d88a0cf4063
Reviewed-on: https://go-review.googlesource.com/5470Reviewed-by: David Crawshaw <crawshaw@golang.org>

Change-Id: I780ed76c9217d387a73fd7530af2f40948aa1fe4
Reviewed-on: https://go-review.googlesource.com/5452Reviewed-by: Rob Pike <r@golang.org>

cmd/dist was doing the right thing, but not cmd/go.

Change-Id: I5412140cfc07e806152915cc49db7f63352d01ca
Reviewed-on: https://go-review.googlesource.com/5451Reviewed-by: Rob Pike <r@golang.org>

Trace command allows to visualize and analyze traces.
Run as:
$ go tool trace binary trace.file
The commands opens web browser with the main page,
which contains links for trace visualization,
blocking profiler, network IO profiler and per-goroutine
traces.

Also move trace parser from runtime/pprof/trace_parser_test.go
to internal/trace/parser.go, so that it can be shared between
tests and the command.

Change-Id: Ic97ed59ad6e4c7e1dc9eca5e979701a2b4aed7cf
Reviewed-on: https://go-review.googlesource.com/3601Reviewed-by: Andrew Gerrand <adg@golang.org>

Restores stack traces in the android/arm builder.

Change-Id: If637aa2ed6f8886126b77cf9cc8a0535ec7c4369
Reviewed-on: https://go-review.googlesource.com/5453Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>

Fixes #9720
Fixes #8053
Fixes https://code.google.com/p/thread-sanitizer/issues/detail?id=89

Change-Id: I7d598e53de86586bb9702d8e9276a4d6aece2dfc
Reviewed-on: https://go-review.googlesource.com/4950Reviewed-by: Ian Lance Taylor <iant@golang.org>

In most cases we pass return PC to race detector,
and race runtime subtracts one from them.
However, in manual instrumentation in runtime
we pass function start PC to race runtime.
Race runtime can't distinguish these cases
and so it does not subtract one from top PC.
This leads to bogus line numbers in some cases.
Make it consistent and always pass what looks
like a return PC, so that race runtime can
subtract one and still get PC in the same function.

Also delete two unused functions.

Update #8053

Change-Id: I4242dec5e055e460c9a8990eaca1d085ae240ed2
Reviewed-on: https://go-review.googlesource.com/4902Reviewed-by: Ian Lance Taylor <iant@golang.org>

This is a nice split but more importantly it provides a better
way to fit the checkmark phase into the sequencing.

Also factor out common span copying into gcSpanCopy.

Change-Id: Ia058644974e4ed4ac3cf4b017a3446eb2284d053
Reviewed-on: https://go-review.googlesource.com/5333Reviewed-by: Austin Clements <austin@google.com>

The loop made more sense when gc_m was not its own function.

Change-Id: I71a7f21d777e69c1924e3b534c507476daa4dfdd
Reviewed-on: https://go-review.googlesource.com/5332Reviewed-by: Austin Clements <austin@google.com>

Change-Id: I0da26e89ae73272e49e82c6549c774e5bc97f64c
Reviewed-on: https://go-review.googlesource.com/5331Reviewed-by: Austin Clements <austin@google.com>

See the following issue for context:
https://github.com/golang/go/issues/9729#issuecomment-74648287
In short, RDTSC can produce skewed results without preceding LFENCE/MFENCE.
Information on this matter is very scrappy in the internet.
But this is what linux kernel does (see rdtsc_barrier).
It also fixes the test program on my machine.

Update #9729

Change-Id: I3c1ffbf129fdfdd388bd5b7911b392b319248e68
Reviewed-on: https://go-review.googlesource.com/5033Reviewed-by: Ian Lance Taylor <iant@golang.org>

Missed this one instruction in the previous pass.

Change-Id: Ic8cdae4d3bfd626c6bbe0ce49fce28b53db2ad1c
Reviewed-on: https://go-review.googlesource.com/5420Reviewed-by: Russ Cox <rsc@golang.org>

This time for sure!

Change-Id: I7e7ea24edb7c2f711489e162fb97237a87533089

The merge brought in new C sources without Go updates.

Change-Id: Iad08b58f894173a7b34396275b72db34f3031fe3
Reviewed-on: https://go-review.googlesource.com/5352Reviewed-by: Russ Cox <rsc@golang.org>

Fixes #9928

Change-Id: Iab37051078755a132f211ad48e756422f7c55a39
Reviewed-on: https://go-review.googlesource.com/5416Reviewed-by: Minux Ma <minux@golang.org>

This changes fixes two issues with regard to handling routing messages
as follows:
- Misparsing on platforms (such as FreeBSD) supporting multiple
  architectures in the same kernel (kern.supported_archs="amd64 i386")
- Misparsing with unimplemented messages such as route, interface
  address state notifications

To fix those issues, this change implements all the required socket
address parsers, adds a processor architecture identifying function to
FreeBSD and tests.

Fixes #9707.
Fixes #8203.

Change-Id: I7ed7b4a0b6f10f54b29edc681a2f35603f2d8d45
Reviewed-on: https://go-review.googlesource.com/4330Reviewed-by: Ian Lance Taylor <iant@golang.org>

Before Go 1.4, the traditional way to work with a private Github
repository was to run something similar the following:

```
git config --global url."git@github.com:".insteadOf "https://github.com/"
```

It would allow go get and friends to transparently work as expected,
automatically rewriting https URLs to use SSH for auth. This worked both
when pushing and pulling.

In Go 1.4 this broke, now requiring the use of `go get -f` instead of `go get`
in order to fetch private repositories. This seems neither intended nor
practical, as it requires changing a lot of tooling.

So just use `git config remote.origin.url` instead of `git remote -v` as
this reflects the actual substitution intended in the `insteadOf` config
directive.

Also remove now useless parsing.

Also add a check against supported schemes to avoid errors in later
commands using this URL and expecting such a scheme.

Fixes #9697

Change-Id: I907327f83504302288f913a68f8222a5c2d673ee
Reviewed-on: https://go-review.googlesource.com/3504Reviewed-by: Andrew Gerrand <adg@golang.org>

Change-Id: I678336daf99f7d7d19f99506f1a604de8e05bf43
Reviewed-on: https://go-review.googlesource.com/5400Reviewed-by: Russ Cox <rsc@golang.org>

I created a .s file that covered every instruction and operand production
in 9a/a.y and made sure that 9a and asm give bit-identical results for it.
I found a few things, including one addressing mode (R1+R2) that was
not present in the source we use. Fixed those

I also found quite a few things where 9a's grammar accepts the instruction
but liblink rejects it. These need to be sorted out, and I will do that separately.
Once that's done, I'll turn my test file into a proper test.

Change-Id: Ib093271b0f7ffd64ffed164ed2a820ebf2420e34
Reviewed-on: https://go-review.googlesource.com/5361Reviewed-by: Russ Cox <rsc@golang.org>

Fix many incorrect FP references and a few other details.

Some errors remain, especially in vlop, but fixing them requires semantics. For another day.

Change-Id: Ib769fb519b465e79fc08d004a51acc5644e8b259
Reviewed-on: https://go-review.googlesource.com/5288Reviewed-by: Russ Cox <rsc@golang.org>

Reconvert using rsc.io/c2go rev 27b3f59.

Changes to converter:
 - fatal does not return, so no fallthrough after fatal in switch
 - many more function results and variables identified as bool
 - simplification of negated boolean expressions

Change-Id: I3bc67da5e46cb7ee613e230cf7e9533036cc870b
Reviewed-on: https://go-review.googlesource.com/5171Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>

c2go was putting a fallthrough after the fatal call.
Changed c2go to know that fatal doesn't return,
but then there is a missing return at the end of
the translated Go function.
Move code around a little to make C and Go agree.

Change-Id: Icef3d55ccdde0709c02dd0c2b78826f6da33a146
Reviewed-on: https://go-review.googlesource.com/5170Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>