R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/7577049

I'm not sure how to write a test for this.  The change in
behaviour is that if you somehow get a SIGBUS signal for an
address >= 0x1000, the program will now crash rather than
calling panic.  As far as I know, on x86 GNU/Linux, the only
way to get a SIGBUS (rather than a SIGSEGV) is to set the
stack pointer to an invalid value.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7906045

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7834049

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/7496051

Also simplifies ResolveUnixAddr.

R=golang-dev, dave, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/7510047

Also:
- more consistenly use "xxx" statement rather than <code>xxx</code> statement
- fix/remove unnecessary links

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7821050

R=golang-dev, rsc, jeremyjackins, gri
CC=golang-dev
https://golang.org/cl/7838045

R=ken2
CC=golang-dev
https://golang.org/cl/7838048

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7493048

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7877045

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7834047

R=dave, rsc
CC=golang-dev
https://golang.org/cl/7970043

E.g conversions from numeric types to RawBytes are missing, what makes RawBytes unusable in some cases.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7783046

Fixes #5036.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7531045

Will help people find the rules by searching the spec by
having a comment saying "missing return";
"terminating statement" does not evoke the rule to the
uninitiated.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7838044

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7834046

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7973043

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7879044

The GIF89a spec says: "Each image must fit within the
boundaries of the Logical Screen, as defined in the
Logical Screen Descriptor." Also, do not accept
GIFs which have too much data for the image size.

R=nigeltao, jra, r
CC=bradfitz, golang-dev
https://golang.org/cl/7602045

On Darwin and FreeBSD, the mmap syscall return value is returned
unmodified. This means that the return value will either be a
valid address or a positive error number.

Also check return value from mmap in SysReserve - the callers of
SysReserve expect nil to be returned if the allocation failed.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7871043

Rather than just checking for ENOMEM, check for a return value of less
than 4096, so that we catch other errors such as EACCES and EINVAL.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7942043

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7958043

R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/7835046

data does not agree with its bounds.

R=r, jeff.allen
CC=golang-dev
https://golang.org/cl/7938043

Change from atoi to strtol since atoi does not set errno.

R=golang-dev, minux.ma, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/7888047

R=adonovan, cw, patrick.allen.higgins, bradfitz
CC=golang-dev
https://golang.org/cl/7844045

Saves over 8KB of allocations per new connection.

benchmark                             old ns/op    new ns/op    delta
BenchmarkServerFakeConnNoKeepAlive        28777        24927  -13.38%

benchmark                            old allocs   new allocs    delta
BenchmarkServerFakeConnNoKeepAlive           52           46  -11.54%

benchmark                             old bytes    new bytes    delta
BenchmarkServerFakeConnNoKeepAlive        13716         5286  -61.46%

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7799047

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/7927044

After the revert of revision 9ea9e7e6e0c8
the related revision 76ff7da868c6 must be reverted too.

Fixes #5102.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7961044

To be submitted once gc agrees.

R=rsc, iant, remyoudompheng
CC=golang-dev
https://golang.org/cl/7861045

Fixes #4813.

R=golang-dev, daniel.morsing, rsc
CC=golang-dev
https://golang.org/cl/7625050

-notes="BUG|TODO" instead of -notes="BUG,TODO".
Permits -notes=".*" to see all notes.

R=cnicolaou
CC=golang-dev
https://golang.org/cl/7951043

Also fix the examples to use stderr for errors.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7716052

If a handler didn't consume all its Request.Body, child.go was
closing the socket while the host was still writing to it,
causing the child to send a RST and the host (at least nginx)
to send an empty response body.

Now, we tell the host we're done with the request/response
first, and then close our input pipe after consuming a bit of
it. Consuming the body fixes the problem, and flushing to the
host first to tell it that we're done increases the chance
that the host cuts off further data to us, meaning we won't
have much to consume.

No new tests, because this package is lacking in tests.
Tested by hand with nginx.  See issue for testing details.

Fixes #4183

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7939045

Also adjust the implementation of applyRelocationsAMD64
so that the test added in CL 6848044 still passes.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7686049

Fixes #1517.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7906043

Only the net stuff remains as significant work in the "minor changes" section.

R=golang-dev, dave, elias.naur, rsc
CC=golang-dev
https://golang.org/cl/7933044

XOR key into data 128 bits at a time instead of 64 bits
and pipeline half of state loads. Rotate loop to allow
single-register indexing for state[i].

On a MacBookPro10,2 (Core i5):

benchmark           old ns/op    new ns/op    delta
BenchmarkRC4_128          412          224  -45.63%
BenchmarkRC4_1K          3179         1613  -49.26%
BenchmarkRC4_8K         25223        12545  -50.26%

benchmark            old MB/s     new MB/s  speedup
BenchmarkRC4_128       310.51       570.42    1.84x
BenchmarkRC4_1K        322.09       634.48    1.97x
BenchmarkRC4_8K        320.97       645.32    2.01x

For comparison, on the same machine, openssl 0.9.8r reports
its rc4 speed as somewhat under 350 MB/s for both 1K and 8K
(it is operating 64 bits at a time).

On an Intel Xeon E5520:

benchmark           old ns/op    new ns/op    delta
BenchmarkRC4_128          418          259  -38.04%
BenchmarkRC4_1K          3200         1884  -41.12%
BenchmarkRC4_8K         25173        14529  -42.28%

benchmark            old MB/s     new MB/s  speedup
BenchmarkRC4_128       306.04       492.48    1.61x
BenchmarkRC4_1K        319.93       543.26    1.70x
BenchmarkRC4_8K        321.61       557.20    1.73x

For comparison, on the same machine, openssl 1.0.1
reports its rc4 speed as 587 MB/s for 1K and 601 MB/s for 8K.

R=agl
CC=golang-dev
https://golang.org/cl/7865046

fix code that implicitly assumes little-endian machines.

R=golang-dev, bradfitz, rsc, alex.brainman
CC=golang-dev
https://golang.org/cl/6792043

gcc generates only attr DW_AT_byte_size for DW_TAG_pointer_type of "void *",
but we used to also generate DW_AT_type pointing to imaginary unspecified
type "void", which confuses some gdb.
This change makes old Apple gdb 6.x (specifically, Apple version gdb-1515)
accepts our binary without issue like this:
(gdb) b 'main.main'
Die: DW_TAG_unspecified_type (abbrev = 10, offset = 47079)
    has children: FALSE
    attributes:
        DW_AT_name (DW_FORM_string) string: "void"
Dwarf Error: Cannot find type of die [in module /Users/minux/go/go2.hg/bin/go]

Special thanks to Russ Cox for pointing out the problem in comment #6 of
CL 7891044.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7744051