Volker Dobler [Wed, 6 Feb 2013 11:37:34 +0000 (22:37 +1100)]
exp/cookiejar: infrastructure for upcoming implementation
This CL is the first of a handful of CLs which will provide
the implementation of cookiejar. It contains several helper
functions and the skeleton of Cookies and SetCookies.
Proper host name handling requires the ToASCII transformation
from package idna which currently lives in the go.net
subrepo. This CL thus contains just a TODO for this issue.
Dmitriy Vyukov [Wed, 6 Feb 2013 07:40:54 +0000 (11:40 +0400)]
runtime/race: switch to explicit race context instead of goroutine id's
Removes limit on maximum number of goroutines ever existed.
code.google.com/p/goexecutor tests now pass successfully.
Also slightly improves performance.
Before: $ time ./flate.test -test.short
real 0m9.314s
After: $ time ./flate.test -test.short
real 0m8.958s
Fixes #4286.
The runtime is built from llvm rev 174312.
Ian Lance Taylor [Tue, 5 Feb 2013 14:11:10 +0000 (06:11 -0800)]
exp/inotify: close event channel before file descriptor
Closing the inotify file descriptor can take over a second
when running on Ubuntu Precise in an NFS directory, leading to
the test error in issue 3132. Closing the event channel first
lets a client that does not care about the error channel move
on.
Shenghou Ma [Tue, 5 Feb 2013 13:43:04 +0000 (21:43 +0800)]
cmd/dist: add -Wstrict-prototypes to CFLAGS and fix all the compiler errors
Plan 9 compilers insist this but as we don't have Plan 9
builders, we'd better let gcc check the prototypes.
Russ Cox [Tue, 5 Feb 2013 12:00:38 +0000 (07:00 -0500)]
cmd/gc: add way to specify 'noescape' for extern funcs
A new comment directive //go:noescape instructs the compiler
that the following external (no body) func declaration should be
treated as if none of its arguments escape to the heap.
Dave Cheney [Tue, 5 Feb 2013 09:50:20 +0000 (20:50 +1100)]
misc/dashboard/app: trim old builds from the history
The dashboard is currently failing to store results of new builds for some keys, notable the go.codereview sub repository. This is causing the builders to mark the entire triggering commit as failed. With the help of David Symonds we think it is because the results value has breached the 1mb datastore limit on AppEngine.
Brad Fitzpatrick [Tue, 5 Feb 2013 04:26:25 +0000 (20:26 -0800)]
net/http: fix Server blocking after a Handler's Write fails
If a Handle's Write to a ResponseWriter fails (e.g. via a
net.Conn WriteDeadline via WriteTimeout on the Server), the
Server was blocking forever waiting for reads on that
net.Conn, even after a Write failed.
Instead, once we see a Write fail, close the connection,
since it's then dead to us anyway.
Russ Cox [Tue, 5 Feb 2013 03:48:31 +0000 (22:48 -0500)]
cmd/gc: fix escape analysis
If the analysis reached a node twice, then the analysis was cut off.
However, if the second arrival is at a lower depth (closer to escaping)
then it is important to repeat the traversal.
The repeating must be cut off at some point to avoid the occasional
infinite recursion. This CL cuts it off as soon as possible while still
passing all tests.
Mikio Hara [Mon, 4 Feb 2013 21:53:58 +0000 (06:53 +0900)]
syscall: regenerate ztype files for linux
This CL adds TCPInfo struct to linux/386,arm.
It's already added to linux/amd64.
Note that not sure the reason but cgo godefs w/ latest gcc
translates a flexible array member in structures correctly,
handles it as a non-incomplete, non-opaque type, on Go 1.
This CL reverts such changes by hand for the Go 1 contract.
Russ Cox [Mon, 4 Feb 2013 05:21:44 +0000 (00:21 -0500)]
cmd/gc: fix &^ code generation bug
Was not re-walking the new AND node, so that its ullman
count was wrong, so that the code generator attempted to
store values in registers across the call.
Russ Cox [Mon, 4 Feb 2013 04:47:03 +0000 (23:47 -0500)]
cmd/go, testing: revise docs for test flags
In cmd/go's 'go help testflag':
* Rewrite list of flags to drop test. prefix on every name.
* Sort list of flags.
* Add example of using -bench to match all benchmarks.
In testing:
* Remove mention of undefined 'CPU group' concept.
Russ Cox [Mon, 4 Feb 2013 04:02:12 +0000 (23:02 -0500)]
time: deal a bit better with time zones in Parse
* Document Parse's zone interpretation.
* Add ParseInLocation (API change).
* Recognize "wrong" time zone names, like daylight savings time in winter.
* Disambiguate time zone names using offset (like winter EST vs summer EST in Sydney).
The final two are backwards-incompatible changes, but I believe
they are both buggy behavior in the Go 1.0 versions; the old results
were more wrong than the new ones.
Russ Cox [Sun, 3 Feb 2013 19:51:21 +0000 (14:51 -0500)]
cmd/gc: slightly better code generation
* Avoid treating CALL fn(SB) as justification for introducing
and tracking a registerized variable for fn(SB).
* Remove USED(n) after declaration and zeroing of n.
It was left over from when the compiler emitted more
aggressive set and not used errors, and it was keeping
the optimizer from removing a redundant zeroing of n
when n was a pointer or integer variable.
Elias Naur [Fri, 1 Feb 2013 19:24:49 +0000 (11:24 -0800)]
runtime, cmd/ld: make code more position-independent
Change the stack unwinding code to compensate for the dynamic
relocation of symbols.
Change the gc instruction GC_CALL to use a relative offset instead of
an absolute address.
Elias Naur [Fri, 1 Feb 2013 16:35:33 +0000 (08:35 -0800)]
cmd/6c, cmd/6g: add flag to support large-model code generation
Added the -pic flag to 6c and 6g to avoid assembler instructions that
cannot use RIP-relative adressing. This is needed to support the -shared mode
in 6l.
See also:
https://golang.org/cl/6926049
https://golang.org/cl/6822078
Russ Cox [Fri, 1 Feb 2013 16:34:41 +0000 (08:34 -0800)]
runtime: cgo-related fixes
* Separate internal and external LockOSThread, for cgo safety.
* Show goroutine that made faulting cgo call.
* Never start a panic due to a signal caused by a cgo call.
Russ Cox [Fri, 1 Feb 2013 16:34:21 +0000 (08:34 -0800)]
cmd/go: clean cgo compiler errors
Cut out temporary cgo file in error message.
Show C.foo instead of _Ctype_foo.
Before:
x.go:20[/var/folders/00/05_b8000h01000cxqpysvccm000n9d/T/go-build242036121/command-line-arguments/_obj/x.cgo1.go:19]: cannot use tv.Usec (type int32) as type _Ctype___darwin_suseconds_t in assignment
After:
x.go:20: cannot use tv.Usec (type int32) as type C.__darwin_suseconds_t in assignment
Russ Cox [Fri, 1 Feb 2013 16:34:08 +0000 (08:34 -0800)]
cmd/cgo: fix line number annotations in generated C code
The old version was using go/ast's CommentGroup.Text method,
but that method drops leading blank lines from the result, so that
if the comment looked like one of
//
// syntax error
import "C"
/*
syntax error
*/
import "C"
then the line numbers for the syntax error would be off by the
number of leading blank lines (1 in each of the above cases).
Russ Cox [Fri, 1 Feb 2013 06:02:20 +0000 (22:02 -0800)]
cmd/dist: redirect acid output to file to separate from errors
If runtime's proc.c does not compile, cmd/dist used to show
the compile errors in a sea of acid output, making them impossible
to find. Change the command invocation to write the acid output
to a file, so that the errors are the only thing shown on failure.
Russ Cox [Thu, 31 Jan 2013 22:11:32 +0000 (14:11 -0800)]
cmd/ld: support for linking with host linker
A step toward a fix for issue 4069.
To allow linking with arbitrary host object files, add a linker mode
that can generate a host object file instead of an executable.
Then the host linker can be invoked to generate the final executable.
This CL adds a new -hostobj flag that instructs the linker to write
a host object file instead of an executable.
That is, this works:
go tool 6g x.go
go tool 6l -hostobj -o x.o x.6
ld -e _rt0_amd64_linux x.o
./a.out
as does:
go tool 8g x.go
go tool 8l -hostld ignored -o x.o x.8
ld -m elf_i386 -e _rt0_386_linux x.o
./a.out
Because 5l was never updated to use the standard relocation scheme,
it will take more work to get this working on ARM.
This is a checkpoint of the basic functionality. It does not work
with cgo yet, and cgo is the main reason for the change.
The command-line interface will likely change too.
The gc linker has other information that needs to be returned to
the caller for use when invoking the host linker besides the single
object file.
Russ Cox [Thu, 31 Jan 2013 21:46:12 +0000 (13:46 -0800)]
io: guarantee err == nil for full reads in ReadFull and ReadAtLeast
This is a backwards compatible API change that fixes broken code.
In Go 1.0, ReadFull(r, buf) could return either len(buf), nil or len(buf), non-nil.
Most code expects only the former, so do that and document the guarantee.
Code that was correct before is still correct.
Code that was incorrect before, by assuming the guarantee, is now correct too.
Adam Langley [Thu, 31 Jan 2013 17:54:37 +0000 (12:54 -0500)]
crypto/x509: test for negative RSA parameters.
Someone found software that generates negative numbers for the RSA
modulus in an X.509 certificate. Our error messages were very poor in
this case so this change improves that.
Update #4728
Return more helpful errors when RSA parameters are negative or zero.
Russ Cox [Thu, 31 Jan 2013 16:06:38 +0000 (08:06 -0800)]
cmd/go: many bug fixes
* Reject import paths of the form cmd/x/y.
* Reject 'go install' of command outside GOPATH
* Clearer error rejecting 'go install' of package outside GOPATH.
* Name temporary binary for first file in 'go run' list or for test.
* Provide a way to pass -ldflags arguments with spaces.
* Pass all Go files (even +build ignored ones) to go fix, go fmt, go vet.
* Reject 'go run foo_test.go'.
* Silence 'exit 1' prints from 'go tool' invocations.
* Make go test -xxxprofile leave binary behind for analysis.
* Reject ~ in GOPATH except on Windows.
* Get a little less confused by symlinks.
* Document that go test x y z runs three test binaries.
* Fix go test -timeout=0.
* Add -tags flag to 'go list'.
* Use pkg/gccgo_$GOOS_$GOARCH for gccgo output.
Rémy Oudompheng [Thu, 31 Jan 2013 07:52:46 +0000 (08:52 +0100)]
cmd/8l: fix misassembling of MOVB involving (AX)(BX*1)
The linker accepts MOVB involving non-byte-addressable
registers, by generating XCHG instructions to AX or BX.
It does not handle the case where nor AX nor BX are available.
Nigel Tao [Thu, 31 Jan 2013 03:12:43 +0000 (14:12 +1100)]
exp/cookiejar: update PublicSuffixList doc comment to match the
examples at http://publicsuffix.org/.
That website previously listed pvt.k12.wy.us, but that was an error,
as confirmed by correspondance with submissions@publicsuffix.org, and
the website was fixed on 2013-01-23.