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3413 Commits

Author SHA1 Message Date
Ken Thompson
458b53ea7d all done except - 
complex divide
float(complex) conversion
8g 5g etc
tests

R=rsc
CC=golang-dev
https://golang.org/cl/218044
 2010-02-21 17:51:39 -08:00
Russ Cox
ed13d39972 gc: minor const simplifications 
R=ken2
CC=golang-dev
https://golang.org/cl/217069
 2010-02-21 11:18:09 -08:00
Ken Thompson
f59cb49a5a fixed bug in mpconst float multiply by 0. 
more complex -- constants, variables and print.

R=rsc
CC=golang-dev
https://golang.org/cl/217061
 2010-02-19 20:42:50 -08:00
Timo Savola
4f8a000e17 websocket: fix binary frame size decoding 
R=ukai, rsc
CC=golang-dev
https://golang.org/cl/166074
 2010-02-19 18:40:09 -08:00
Robert Griesemer
989ef60509 go/ast: use a slice instead of a linked list for the list of comments 
(this will simplify some further changes)
removed several TODOs

R=rsc
CC=golang-dev
https://golang.org/cl/216059
 2010-02-19 17:03:09 -08:00
Robert Griesemer
aaec61555a godoc: fix path resolution for command-line one more time (sigh...) 
R=rsc
CC=golang-dev
https://golang.org/cl/217058
 2010-02-19 16:23:19 -08:00
Robert Griesemer
8e714aab2b - removed exp/parser (support for old semicolon syntax) 
- go/ast: removed StringList (not needed anymore)
- go/ast: changed import path and field list tag to a single string
- updated all dependencies

R=rsc
CC=golang-dev
https://golang.org/cl/217056
 2010-02-19 16:01:31 -08:00
Robert Griesemer
cf743c1be6 godoc: make commandline use work again 
R=rsc
CC=golang-dev
https://golang.org/cl/216054
 2010-02-19 11:41:48 -08:00
Petar Maymounkov
1480ce373e http: unified body transfer (read & write) logic in http.Request/Response. 
Compliance issue addressed here: POST requests carrying form data are required
to use "identity" transfer encoding by common nginx and apache server configurations,
e.g. wordpress.com (and many others). So, Request needed to be able to send
non-chunked encodings.

Thus, Request is extended to support identity and chunked encodings, like
Response.  Since the Read() and Write() logic are shared by both (and are
quite long), it is exported in a separate file transfer.go.

R=rsc
CC=golang-dev
https://golang.org/cl/217048
 2010-02-19 08:38:40 -08:00
Petar Maymounkov
8d9c2b2eab http: add Pending method to ServerConn, ClientConn 
R=rsc
CC=golang-dev
https://golang.org/cl/216052
 2010-02-19 08:21:21 -08:00
Adam Langley
32c3c95339 crypto/x509: support certificate creation. 
R=rsc
CC=golang-dev
https://golang.org/cl/212041
 2010-02-19 10:55:41 -05:00
Petar Maymounkov
55828cee94 http: add DumpRequest, DumpResponse, for debugging 
R=rsc
CC=golang-dev
https://golang.org/cl/206050
 2010-02-19 07:51:51 -08:00
Petar Maymounkov
d26e204514 http: persistent connection objects 
R=rsc
CC=golang-dev
https://golang.org/cl/203051
 2010-02-18 23:38:21 -08:00
Petar Maymounkov
e3b94edc03 http: do not edit Response.ContentLength in Response.Write 
R=rsc
CC=golang-dev
https://golang.org/cl/207061
 2010-02-18 23:38:17 -08:00
Russ Cox
80a14df122 gc: double-initialization 
R=ken2
CC=golang-dev
https://golang.org/cl/217044
 2010-02-18 23:33:57 -08:00
Kai Backman
c0aac20e20 combined pchw and embedded into tiny. added section on arm to README 
R=rsc
CC=golang-dev
https://golang.org/cl/194151
 2010-02-18 23:33:21 -08:00
Charles L. Dorian
c3fa32c747 math: add Cbrt and Sincos; x87 versions of Sincos, Frexp, Ldexp 
Added special condition and benchmarks for Cbrt, Sincos. Took Frexp and Ldexp out of bits.go.

R=rsc
CC=golang-dev
https://golang.org/cl/206084
 2010-02-18 23:33:15 -08:00
Evan Shaw
4af0a58ea9 8a/8l: Added FCMOVcc instructions 
Thanks to Charles Dorian for the help.

R=rsc
CC=Charlie Dorian, golang-dev
https://golang.org/cl/207049
 2010-02-18 23:33:06 -08:00
Amrut Joshi
d8675d25e5 xml: allow unquoted attribute values in non-Strict mode 
HTML4 standard supports unquoted attibute values in certain cases
(http://www.w3.org/TR/REC-html40/intro/sgmltut.html#h-3.2.2).

R=rsc
CC=golang-dev
https://golang.org/cl/207095
 2010-02-18 23:32:55 -08:00
Fumitoshi Ukai
2161e3e23e http: avoid server crash on malformed client request 
R=r, rsc
CC=golang-dev
https://golang.org/cl/206079
 2010-02-18 18:32:40 -08:00
Russ Cox
c2dea2196c exec: add dir argument to Run. 
fix, test MergeWithStdout

R=r
CC=golang-dev
https://golang.org/cl/214046
 2010-02-18 18:32:33 -08:00
Russ Cox
4589c34580 gc: fix this morning's bug fix 
R=ken2
CC=golang-dev
https://golang.org/cl/216043
 2010-02-18 18:31:13 -08:00
Ken Thompson
fc010adcd7 complex constant multiply and divide 
R=rsc
CC=golang-dev
https://golang.org/cl/217041
 2010-02-18 17:55:11 -08:00
Robert Griesemer
d17ffb9753 godoc: path cleanups, fixed a race condition, initial support for a menu on pages 
R=rsc
CC=adg, golang-dev
https://golang.org/cl/215050
 2010-02-18 17:40:50 -08:00
Dean Prichard
86b0ea6447 sync: allow to work on armv5 
asm_arm.s was using ldrex which does not work
on armv5. Tested on Sheevaplug.

R=rsc, kaib
CC=golang-dev
https://golang.org/cl/214049
 2010-02-18 15:37:16 -08:00
Ken Thompson
713e3e1541 more complex - constants 
import and export

R=rsc
CC=golang-dev
https://golang.org/cl/214050
 2010-02-18 14:46:28 -08:00
Russ Cox
1734cb02e7 gc: recursive interface embedding 
Fixes #287.

R=ken2
CC=golang-dev
https://golang.org/cl/215048
 2010-02-18 11:15:36 -08:00
Russ Cox
cf015fd0b8 5g/8g: fix build 
R=ken2
CC=golang-dev
https://golang.org/cl/215042
 2010-02-17 22:41:04 -08:00
Ken Thompson
33d6a260c1 new types complex, complex64 and complex128 
only front-end compiler work.
best to do thin in 3 steps
1. frontend
2. backend
3. lib

R=rsc
CC=golang-dev
https://golang.org/cl/214042
 2010-02-17 22:08:30 -08:00
Robert Griesemer
cd72f77f23 apply gofmt to src and misc 
R=rsc
CC=golang-dev
https://golang.org/cl/213041
 2010-02-17 15:46:46 -08:00
Robert Griesemer
1cf6fdf8a1 gofmt: make sure certain 2-line comments are stable 
under repeated application of gofmt

R=agl, agl1
CC=golang-dev
https://golang.org/cl/212046
 2010-02-17 15:41:26 -08:00
Russ Cox
fb5506600f 8g: respect ullman numbers in float comparison 
Fixes #602.

R=ken2
CC=golang-dev
https://golang.org/cl/212045
 2010-02-17 15:28:45 -08:00
Rob Pike
7b76175a1c time.Ticker: fix bug arising when all tickers are dead. 
thanks to yglgogo for analysis.

Fixes #593.

R=rsc
CC=golang-dev
https://golang.org/cl/210044
 2010-02-18 09:55:29 +11:00
Nigel Tao
3dc04f4a22 Add Src and Over draw operators. 
R=r, rsc
CC=golang-dev
https://golang.org/cl/207096
 2010-02-17 14:34:51 +11:00
Russ Cox
7b5789b584 gc: undo attempt at fixing recursive interface embedding 
Fixes #582.

Update #287
Status: Accepted
Bug fix was too intrusive; undo and reopen issue.

R=ken2
CC=golang-dev
https://golang.org/cl/209044
 2010-02-16 17:44:15 -08:00
Robert Griesemer
855986d54f go/scanner: comply with spec changes (do not allow NUL chars) 
and complain about illegal UTF-8 code sequences

R=rsc
CC=golang-dev
https://golang.org/cl/209043
 2010-02-16 17:39:44 -08:00
Russ Cox
401062f720 gc: fix build (signed char bug) 
R=ken2
CC=golang-dev
https://golang.org/cl/210043
 2010-02-16 17:30:33 -08:00
Russ Cox
cfff862862 gc: disallow NUL byte, catch more invalid UTF-8, test 
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/209041
 2010-02-16 16:47:39 -08:00
Russ Cox
04d9c8853b runtime: fix bug in Caller documentation 
R=r
CC=golang-dev
https://golang.org/cl/207110
 2010-02-16 16:11:11 -08:00
Robert Griesemer
db9a9662a1 godoc: updated documentation 
R=r
CC=golang-dev
https://golang.org/cl/207112
 2010-02-16 15:36:55 -08:00
Rob Pike
7db472fd34 The prefix optimization applies only to the first iteration. 
Fixes #596.

R=rsc
CC=golang-dev
https://golang.org/cl/206101
 2010-02-17 08:49:00 +11:00
Robert Griesemer
ca075494a6 godoc: initialize vars depending on flags after parsing the flags. 
R=rsc
CC=golang-dev
https://golang.org/cl/206109
 2010-02-16 12:49:41 -08:00
Robert Griesemer
ffd0961313 godoc: fix initialization issue 
R=rsc
CC=golang-dev
https://golang.org/cl/207111
 2010-02-16 11:54:12 -08:00
Giles Lean
5aa3a8de6d syscall: make signature of Umask on OS X, FreeBSD match Linux. 
R=rsc
CC=golang-dev
https://golang.org/cl/207071
 2010-02-16 11:43:25 -08:00
Giles Lean
0b4d8c19af cc: use "cpp" anywhere in path, not "/bin/cpp" 
R=rsc
CC=golang-dev
https://golang.org/cl/206077
 2010-02-16 11:32:41 -08:00
Robert Griesemer
5883c6ef1f godoc support for directories outside $GOROOT 
Example use: godoc -path=/home/user1:/home/build/foo -http=:6666
will start a local godoc that maps urls starting with /pkg/user1 or
/pkg/foo to the respective roots specified in the path.

Missing: Handling of overlapping package directories, multiple
packages per directory.

R=rsc
CC=golang-dev
https://golang.org/cl/206078
 2010-02-16 11:20:55 -08:00
Robert Griesemer
85498cbcdd remove assumption that all files belonging to a package are in the same directory: 
- adjust ast.Package node and doc.PackageDoc correspondingly
- introduce parser.ParseFiles

R=rsc
CC=golang-dev
https://golang.org/cl/207087
 2010-02-16 11:20:25 -08:00
Robert Griesemer
2f816d5b73 Don't print ()'s around a range clause's expression. 
Fixes #605.

R=rsc
CC=golang-dev
https://golang.org/cl/207108
 2010-02-16 10:19:51 -08:00
Russ Cox
e7fc5c2789 gc: test & fix handling of very long string constants 
R=ken2
CC=golang-dev
https://golang.org/cl/207106
 2010-02-16 10:16:24 -08:00
Ian Lance Taylor
115066fd14 Fix printing of named floating point types. 
Try to avoid infinite recursion if String fails due to
printing a bad type.

Add test for String method with named basic types.

R=r
CC=golang-dev
https://golang.org/cl/207102
 2010-02-15 22:42:49 -08:00
Robert Griesemer
fba50ee5ed update gofmt test script 
R=adg
CC=golang-dev
https://golang.org/cl/207088
 2010-02-12 15:28:11 -08:00
Russ Cox
58d5d6f34f http: clarify ServeHTTP return 
Fixes #580.

R=adg
CC=golang-dev
https://golang.org/cl/207086
 2010-02-12 14:27:44 -08:00
Russ Cox
5ab8f00bf8 gc: diagnose invalid array bounds 
Fixes #587.

R=ken2
CC=golang-dev
https://golang.org/cl/207085
 2010-02-12 13:59:02 -08:00
Russ Cox
9f77e7ea3c runtime: dummy gettime for mingw/386. 
Fixes #598.

R=adg
CC=golang-dev
https://golang.org/cl/206089
 2010-02-12 12:49:16 -08:00
Robert Griesemer
a75ebe192e correct meaning of "absolute" and "relative" 
(implementation was swapped)

R=adg
CC=golang-dev, rsc
https://golang.org/cl/207069
 2010-02-11 13:59:10 -08:00
Robert Griesemer
a91fa9d52e Steps towards more flexible godoc: 
The Mapping object implements a flexible
mapping of relative to absolute paths and
vice versa.

R=rsc
CC=golang-dev
https://golang.org/cl/206067
 2010-02-11 10:01:03 -08:00
Kai Backman
494bcc80e4 stop the 5c optimizer from clobbering extern static registers. 
R=rsc, ken2
CC=golang-dev
https://golang.org/cl/204064
 2010-02-10 22:42:05 -08:00
Russ Cox
22a7f2a14d runtime: delete MHeapMapCache, which is useless 
because free needs to mark the block as freed to
coordinate with the garbage collector.

(in C++ free can blindly put the block on the free list,
no questions asked, so the cache saves some work.)

R=iant
CC=golang-dev
https://golang.org/cl/206069
 2010-02-10 21:23:08 -08:00
Nigel Tao
fc8e3d4004 exp/draw test. 
R=rsc
CC=golang-dev
https://golang.org/cl/203062
 2010-02-11 13:38:16 +11:00
Petar Maymounkov
c27c3aa6d8 Added tests for http.Request/Response.Write() 
R=rsc
CC=golang-dev
https://golang.org/cl/199070
 2010-02-10 17:29:03 -08:00
Russ Cox
c312d0e0ca net: use slightly less predictable dns request id 
not trying to be secure, just not repetitive
(sending with the same id repeatedly makes
some resolvers stop replying.)

eventually we'll replace this with linking against
the system's native resolver.

R=p
CC=golang-dev
https://golang.org/cl/207051
 2010-02-10 16:35:35 -08:00
Russ Cox
66cdc699b2 arm: fix build on android 
R=kaib
CC=golang-dev
https://golang.org/cl/206059
 2010-02-10 15:01:02 -08:00
Russ Cox
fb94be55dc runtime: tighten garbage collector 
* specialize sweepspan as sweepspan0 and sweepspan1.
 * in sweepspan1, inline "free" to avoid expensive mlookup.

R=iant
CC=golang-dev
https://golang.org/cl/206060
 2010-02-10 14:59:39 -08:00
Russ Cox
991a968f44 runtime: do not zero blocks on free (this time for sure!) 
R=iant
CC=golang-dev
https://golang.org/cl/207054
 2010-02-10 11:31:00 -08:00
Alex Brainman
3b1a71862e 8l: pe executable building code changed to include import table for kernel32.dll functions 
Fixes #586.

R=rsc
CC=golang-dev
https://golang.org/cl/203060
 2010-02-10 00:47:52 -08:00
Russ Cox
1ca39fb1fd gc: fix mkopnames and color grep interaction 
Fixes #406.

R=adg
CC=golang-dev
https://golang.org/cl/207053
 2010-02-10 00:44:43 -08:00
Russ Cox
f9f66b97e2 ld: unused variable 
R=adg
CC=golang-dev
https://golang.org/cl/207050
 2010-02-10 00:44:22 -08:00
Charles L. Dorian
aee1434193 math: add Exp2; 386 FPU versions of Exp2 and Log1p 
Added tests and benchmarks for Exp2 (special cases same
as Exp). Log1p also enhances speed of inverse hyperbolics.

R=rsc
CC=golang-dev
https://golang.org/cl/206058
 2010-02-10 00:06:41 -08:00
Russ Cox
f25586a306 runtime: garbage collection + malloc performance 
* add bit tracking finalizer status, avoiding getfinalizer lookup
  * add ability to allocate uncleared memory

R=iant
CC=golang-dev
https://golang.org/cl/207044
 2010-02-10 00:00:12 -08:00
Michael Hoisie
0cba5fc051 mime: new package, use in http 
R=rsc
CC=golang-dev
https://golang.org/cl/186160
 2010-02-09 20:47:45 -08:00
Petar Maymounkov
c5287ecb9c http: protect io.WriteString in Request/Response.Write with error checking, 
since they were causing a silent program exit (too many EPIPE's).

R=rsc
CC=golang-dev
https://golang.org/cl/204062
 2010-02-09 17:42:51 -08:00
Ken Thompson
d4ad8e8ce3 bug fix in 6c/8c/5c mis-aligned 
function arguments.

R=rsc
CC=golang-dev
https://golang.org/cl/206054
 2010-02-09 17:26:04 -08:00
Russ Cox
2b4a9fa176 fix NaCl build for latest runtime changes 
R=iant
CC=golang-dev
https://golang.org/cl/206052
 2010-02-09 16:56:22 -08:00
Russ Cox
de90a7d4aa runtime: fix FreeBSD build 
stab in the dark but plausible: the kernel does try to
return time zone information.
http://fxr.watson.org/fxr/source/kern/kern_time.c?v=FREEBSD8#L421

R=iant
CC=golang-dev
https://golang.org/cl/206053
 2010-02-09 16:54:51 -08:00
Charles L. Dorian
c465331262 math: add functions Log2, Nextafter, Fdim, Fmax, Fmin 
Add functions, tests and benchmarks. Fix typos in comments
in expm1 and hypot_386.  Fix Acosh domain error in benchmark
test.

R=rsc
CC=golang-dev
https://golang.org/cl/204069
 2010-02-09 13:33:12 -08:00
Evan Shaw
baea3e946d 8a/8l: Added CMOVcc instructions 
R=rsc
CC=golang-dev
https://golang.org/cl/204067
 2010-02-09 13:33:07 -08:00
Russ Cox
d3be2e3e0a add simple garbage collector benchmarks to dashboard 
R=agl1
CC=golang-dev
https://golang.org/cl/207043
 2010-02-09 13:33:00 -08:00
Fazlul Shahriar
96476b4c3e make units compile 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/206044
 2010-02-09 13:20:22 -08:00
Russ Cox
62d627f0bc runtime: allow arbitrary return type in SetFinalizer. 
finalize chan, to free OS X semaphore inside Lock.
os: finalize File, to close fd.

Fixes #503.

R=ken2
CC=golang-dev
https://golang.org/cl/204065
 2010-02-08 21:41:54 -08:00
Russ Cox
9e2c9bb0ca gc: fix method expression bug 
R=ken2
CC=golang-dev
https://golang.org/cl/206043
 2010-02-08 21:40:35 -08:00
Russ Cox
e4f06812c5 runtime: instrument malloc + garbage collector. 
add simple garbage collection benchmark.

R=iant
CC=golang-dev
https://golang.org/cl/204053
 2010-02-08 14:32:22 -08:00
Andrew Gerrand
b4fb00b69b *l/*c: add -V flag to display version number 
R=rsc
CC=golang-dev
https://golang.org/cl/204044
 2010-02-08 09:46:53 -08:00
Evan Shaw
abe6a5b0f7 testing: Fix comment typo 
R=iant, rsc
CC=golang-dev
https://golang.org/cl/204068
 2010-02-07 23:11:54 -08:00
Adam Langley
d5841cac45 encoding/pem: add marshalling support. 
R=rsc
CC=golang-dev
https://golang.org/cl/203043
 2010-02-07 15:22:36 -05:00
Russ Cox
87915b6565 runtime: introduce MemStatsType 
R=ken2
CC=golang-dev
https://golang.org/cl/204061
 2010-02-07 01:20:44 -08:00
Kai Backman
ebf32c5868 fix comment 
R=rsc
CC=golang-dev
https://golang.org/cl/203053
 2010-02-06 21:59:46 -08:00
Nigel Tao
48cdb63baa draw.Draw fast paths for a nil mask (and RGBA dst). 
Averaged times (in microseconds) for drawing an 800x600 rectangle
are listed below. The summary is: around a 100x improvement.

draw.Draw call times were typically linear in the number of pixels
touched (i.e. drawing an 800x600 rectangle took 100x as much time as
drawing an 80x60 rectangle).

Before this change, there was only the general-but-slow code path.
When drawing any src with a 50%-opaque mask: 237300 us
When drawing any src with a nil mask: 50100 us

After this change, the 50%-opaque mask case is unchanged.
For an *image.RGBA dst and nil mask and...
...a uniform color (i.e. an image.ColorImage) src: 282 us
...another *image.RGBA src: 615 us.

For the curious, an intermediate implementation detected the special
cases but used simple nested for loops instead of the built-in copy
function. The respective times (compared to 282 and 615 for the
final implementation, or 50100 for the original) were 3110 and 3573.

Times were measured with 8g/8l on my laptop. I haven't tried gccgo
or other architectures.

R=r, rsc
CC=golang-dev
https://golang.org/cl/201048
 2010-02-06 15:57:19 +11:00
Petar Maymounkov
4fdab85178 http: sort header keys when writing Response or Request to wire 
R=rsc
CC=golang-dev
https://golang.org/cl/203050
 2010-02-05 18:32:02 -08:00
Ken Thompson
ce85868a00 bug in const float divide 
R=rsc
CC=golang-dev
https://golang.org/cl/204042
 2010-02-05 15:18:32 -08:00
Charles L. Dorian
072b560ee6 math: Atan2 special cases and tests; atan2_386 
Added special cases, tests and benchmarks for Atan2;
added 386 FPU version of Atan2.

R=rsc
CC=golang-dev
https://golang.org/cl/201068
 2010-02-05 14:55:19 -08:00
Rob Pike
cd2ecfb7b3 Ugly hack to provide some mechanism for printing documentation about 
Go source outside $GOROOT.

If the argument is a path starting with / or ., disregard $GOROOT.
Also, disable the check for package name matching the directory,
which is counterproductive in this case.

Apologies for the violence to the code but we need some help documenting
Go code outside the standard repository.

R=gri
CC=golang-dev
https://golang.org/cl/201064
 2010-02-06 08:53:46 +11:00
Adam Langley
95e08bde44 asn1: Fixes and additions to marshalling 
Marshalling:
* Fixes several silly bugs.
* Support the RawContents type.
* Support the RawValue type.
* Recurse into nested interface{}.

Both directions:
* Better handling of SETs. You can now tag an element in a
  structure with "set" to get the correct tag for serialisation.
* For types that aren't in a structure, you can now name them
  with "SET" on the end.
* SETs are no longer implicitly treated as SEQUENCEs.

R=rsc
CC=golang-dev
https://golang.org/cl/201049
 2010-02-05 05:42:02 -05:00
Adam Langley
5d827fac39 crypto/tls: typo fix 
R=rsc
CC=golang-dev
https://golang.org/cl/201047
 2010-02-05 05:39:49 -05:00
Stephen Weinberg
bc43cc3db0 path: make Join variadic 
R=rsc, r
CC=golang-dev
https://golang.org/cl/198049
 2010-02-05 02:39:33 -08:00
Dean Prichard
0e47c75f60 5a/6a/8a/5c/6c/8c: remove fixed-size arrays for -I and -D options 
R=rsc
CC=golang-dev
https://golang.org/cl/198044
 2010-02-05 01:40:58 -08:00
Charles L. Dorian
04217ee54e math: special cases for Modf, Frexp and Ldexp; added Modf_386 
Also moved Modf from bits.go into modf.go and added timing tests.

R=rsc
CC=golang-dev
https://golang.org/cl/202042
 2010-02-05 00:41:30 -08:00
Rob Pike
2d7dc0e70c handle nils safely in Printf. 
add some tests for erroneous formats.

R=rsc
CC=golang-dev
https://golang.org/cl/201058
 2010-02-05 11:23:25 +11:00
Joe Poirier
987e1198db Added mingw specific build stubs. 
R=rsc
CC=golang-dev
https://golang.org/cl/198071
 2010-02-04 13:09:09 -08:00
Christopher Wedgwood
1e66428d59 time: Sleep through interruptions 
R=rsc
CC=golang-dev
https://golang.org/cl/202043
 2010-02-04 13:09:02 -08:00
Christopher Wedgwood
b655fa8d1d FreeBSD: Kill only takes pid & signal 
Cosmetic fix.  The FreeBSD system call only takes two
arguments.

http://fxr.watson.org/fxr/source/kern/kern_sig.c?im=bigexcerpts#L1678

R=dho, rsc
CC=golang-dev
https://golang.org/cl/202051
 2010-02-04 13:08:54 -08:00