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Commit Graph

236 Commits

Author SHA1 Message Date
Brad Fitzpatrick
a35181ba7f os, syscall: revert Yosemite readdir workaround
Reverts https://golang.org/cl/119530044 (OS X 10.10 Yosemite beta
14A299l workaround), since it was fixed in the final Yosemite release.

I verified that the C program http://swtch.com/~rsc/readdirbug.c
passes on Yosemite.

Adds a new test to the os package too, to verify that reading a
regular file as a directory fails.

Fixes #9789 (ReadDir: no error if dirname is a file)

Change-Id: I75286cef88fbb2ebccf045b479e33c810749dcbc
Reviewed-on: https://go-review.googlesource.com/4164
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-02-08 21:04:15 +00:00
David du Colombier
d5d4ab7819 os/signal, runtime: implement notes on Plan 9
This change is an implementation of the signal
runtime and os/signal package on Plan 9.

Contrary to Unix, on Plan 9 a signal is called
a note and is represented by a string.

For this reason, the sigsend and signal_recv
functions had to be reimplemented specifically
for Plan 9.

In order to reuse most of the code and internal
interface of the os/signal package, the note
strings are mapped to integers.

Thanks to Russ Cox for the early review.

Change-Id: I95836645efe21942bb1939f43f87fb3c0eaaef1a
Reviewed-on: https://go-review.googlesource.com/2164
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2015-02-06 19:46:34 +00:00
Péter Surányi
9b6ccb1323 all: don't refer to code.google.com/p/go{,-wiki}/
Only documentation / comment changes. Update references to
point to golang.org permalinks or go.googlesource.com/go.
References in historical release notes under doc are left as is.

Change-Id: Icfc14e4998723e2c2d48f9877a91c5abef6794ea
Reviewed-on: https://go-review.googlesource.com/4060
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-02-06 14:41:47 +00:00
David du Colombier
187cccbde1 os: fix TestMkdirAllAtSlash on Plan 9
Since CL 3676, the TestMkdirAllAtSlash test
depends on syscall.EROFS, which isn't defined
on Plan 9.

This change works around this issue by
defining a system dependent isReadonlyError
function.

Change-Id: If972fd2fe4828ee3bcb8537ea7f4ba29f7a87619
Reviewed-on: https://go-review.googlesource.com/3696
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-02-02 17:01:45 +00:00
Dave Cheney
dc51ed2180 os: don't silently skip test
This is a followup to CL 3676.

Rather than silently returning from the test, a pass,
use the Skip facility to mark the test as skipped.

Change-Id: I90d237e770150bf8d69f14fb09874e70894a7f86
Reviewed-on: https://go-review.googlesource.com/3682
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-31 05:53:22 +00:00
Rahul Chaudhry
2ffe3255a1 os: allow EROFS in TestMkdirAllAtSlash
On some systems (e.g. ChromeOS), / is mounted read-only.
This results in error code syscall.EROFS, which I guess
is just as valid as syscall.EACCES for this test.

Change-Id: I9188d5437a1b5ac1daa9c68b95b8dcb447666ca3
Reviewed-on: https://go-review.googlesource.com/3676
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-01-30 23:37:42 +00:00
David du Colombier
2a74f436aa os: emulate plan 9 libc in stat
This change is a recreation of the CL written
by Nick Owens on http://golang.org/cl/150730043.

If the stat buffer is too short, the kernel
informs us by putting the 2-byte size in the
buffer, so we read that and try again.

This follows the same algorithm as /sys/src/libc/9sys/dirfstat.c.

Fixes #8781.

Change-Id: I01b4ad3a5e705dd4cab6673c7a119f8bef9bbd7c
Reviewed-on: https://go-review.googlesource.com/3281
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-26 06:34:07 +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
Kato Kazuyoshi
6262902070 os: handle the sticky bit separately for *BSD and Solaris
open(2) and mkdir(2) won't set the sticky bit on *BSD and Solaris.
This behavior is mentioned on sticky(8).
see also: https://github.com/dotcloud/docker/pull/6587

Fixes #8383.

Change-Id: Ic4733700f9926b9fc2b6fd1f998acec34e518764
Reviewed-on: https://go-review.googlesource.com/1673
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2014-12-17 16:07:28 +00:00
Russ Cox
09d92b6bbf all: power64 is now ppc64
Fixes #8654.

LGTM=austin
R=austin
CC=golang-codereviews
https://golang.org/cl/180600043
2014-12-05 19:13:20 -05:00
Russ Cox
3e804631d9 [dev.cc] all: merge dev.power64 (7667e41f3ced) into dev.cc
This is to reduce the delta between dev.cc and dev.garbage to just garbage collector changes.

These are the files that had merge conflicts and have been edited by hand:
        malloc.go
        mem_linux.go
        mgc.go
        os1_linux.go
        proc1.go
        panic1.go
        runtime1.go

LGTM=austin
R=austin
CC=golang-codereviews
https://golang.org/cl/174180043
2014-11-14 12:10:52 -05:00
Russ Cox
1cdd9b407d os: document that users of Fd should keep f alive
Fixes #9046.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/162680043
2014-11-06 09:36:51 -05:00
Keith Randall
23ecad07cd os/exec: tell lsof not to block
For some reason lsof is now hanging on my workstation
without the -b (avoid blocking in the kernel) option.
Adding -b makes the test pass and shouldn't hurt.

I don't know how recent the -b option is.  If the builders
are ok with it, it's probably ok.

LGTM=rsc
R=golang-codereviews, bradfitz, rsc
CC=golang-codereviews
https://golang.org/cl/166220043
2014-11-05 20:25:20 -08:00
Russ Cox
599199fd9f [dev.power64] all: merge default (dd5014ed9b01) into dev.power64
Still passes on amd64.

LGTM=austin
R=austin
CC=golang-codereviews
https://golang.org/cl/165110043
2014-10-29 11:45:01 -04:00
David du Colombier
5f54f06a35 os: fix write on Plan 9
In CL 160670043 the write function was changed
so a zero-length write is now allowed. This leads
the ExampleWriter_Init test to fail.

The reason is that Plan 9 preserves message
boundaries, while the os library expects systems
that don't preserve them. We have to ignore
zero-length writes so they will never turn into EOF.

This issue was previously discussed in CL 7406046.

LGTM=bradfitz
R=rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/163510043
2014-10-28 22:44:59 +01:00
Russ Cox
8a9c2c55bd os: fix build
TBR=crawshaw
CC=golang-codereviews
https://golang.org/cl/162390043
2014-10-28 15:34:50 -04:00
Russ Cox
a62da2027b os: do not assume syscall i/o funcs return n=0 on error
Fixes #9007.

LGTM=iant, r
R=r, iant
CC=golang-codereviews
https://golang.org/cl/160670043
2014-10-28 15:00:13 -04:00
Austin Clements
f0bd539c59 [dev.power64] all: merge default into dev.power64
This brings dev.power64 up-to-date with the current tip of
default.  go_bootstrap is still panicking with a bad defer
when initializing the runtime (even on amd64).

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/152570049
2014-10-22 15:51:54 -04:00
Austin Clements
2bd616b1a7 build: merge the great pkg/ rename into dev.power64
This also removes pkg/runtime/traceback_lr.c, which was ported
to Go in an earlier commit and then moved to
runtime/traceback.go.

Reviewer: rsc@golang.org
          rsc: LGTM
2014-10-22 13:25:37 -04:00
David du Colombier
1946afb662 os/exec: fix number of expected file descriptors on Plan 9
Since CL 104570043 and 112720043, we are using the
nsec system call instead of /dev/bintime on Plan 9.

LGTM=rsc
R=rsc
CC=aram, golang-codereviews
https://golang.org/cl/155590043
2014-10-20 23:01:32 +02:00
Russ Cox
05c4b69f84 os/exec: document that Stdin goroutine must finish in Wait
Fixes #7990.

LGTM=iant, bradfitz
R=bradfitz, iant, robryk
CC=golang-codereviews
https://golang.org/cl/156220043
2014-10-15 13:09:59 -04:00
David du Colombier
b9fc8d8cbd os: handle 'no parent' error as IsNotExist on Plan 9
This error is returned by lib9p when removing a file
without parent. It should fix TestRemoveAllRace
when running on ramfs.

LGTM=bradfitz, aram
R=rsc, bradfitz, aram
CC=golang-codereviews, mischief
https://golang.org/cl/153410044
2014-10-13 20:39:46 +02:00
Russ Cox
ab724f928f os, syscall: test Chtimes on directories, fix on Windows
Fixes #8090.

LGTM=alex.brainman
R=alex.brainman
CC=golang-codereviews
https://golang.org/cl/154020043
2014-10-06 19:22:48 -04:00
Russ Cox
1eea5caa30 os: recomment MkdirAll
The internal comments are not completely precise about
what is going on, and they are causing confusion.

Fixes #8283.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/151460043
2014-10-06 15:49:33 -04:00
Russ Cox
d21b37bbe7 os: make Process.Signal 'process finished' error consistent on Unix
While we're here, fix the implementation of Release on both
Unix and Windows: Release is supposed to make Signal an error.

While we're here, make sure we never Signal pid 0.
(Don't try this at home.)

Fixes #7658.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews, iant
https://golang.org/cl/152240043
2014-10-06 15:49:19 -04:00
Brad Fitzpatrick
85cdc49e8a os, syscall: add Unsetenv
Also address a TODO, making Clearenv pass through to cgo.

Based largely on Minux's earlier https://golang.org/cl/82040044

Fixes #6423

LGTM=iant, alex.brainman, r, rsc
R=rsc, iant, r, alex.brainman
CC=golang-codereviews
https://golang.org/cl/148370043
2014-10-01 11:17:15 -07:00
Brad Fitzpatrick
665a416665 os: fix Args setup on Windows
Should fix the Windows build. Untested.

on Windows, args are made by src/os/exec_windows.go, not package runtime.
runtime·goargs has if(Windows) return;

The two init funcs in pkg os were conflicting, with the second
overwriting Args back to an empty slice.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/143540044
2014-09-24 18:50:54 -04:00
Russ Cox
193daab988 cmd/cc, cmd/ld, runtime: disallow conservative data/bss objects
In linker, refuse to write conservative (array of pointers) as the
garbage collection type for any variable in the data/bss GC program.

In the linker, attach the Go type to an already-read C declaration
during dedup. This gives us Go types for C globals for free as long
as the cmd/dist-generated Go code contains the declaration.
(Most runtime C declarations have a corresponding Go declaration.
Both are bss declarations and so the linker dedups them.)

In cmd/dist, add a few more C files to the auto-Go-declaration list
in order to get Go type information for the C declarations into the linker.

In C compiler, mark all non-pointer-containing global declarations
and all string data as NOPTR. This allows them to exist in C files
without any corresponding Go declaration. Count C function pointers
as "non-pointer-containing", since we have no heap-allocated C functions.

In runtime, add NOPTR to the remaining pointer-containing declarations,
none of which refer to Go heap objects.

In runtime, also move os.Args and syscall.envs data into runtime-owned
variables. Otherwise, in programs that do not import os or syscall, the
runtime variables named os.Args and syscall.envs will be missing type
information.

I believe that this CL eliminates the final source of conservative GC scanning
in non-SWIG Go programs, and therefore...

Fixes #909.

LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/149770043
2014-09-24 16:55:26 -04:00
Brad Fitzpatrick
db492b8df4 os: add a comment inside RemoveAll
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/149950043
2014-09-23 14:55:19 -07:00
Brad Fitzpatrick
82ddcc05f4 os: fix another case where RemoveAll should return nil
This hopefully fixes issue 8793.

Fixes #8793

LGTM=iant
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/150860046
2014-09-23 14:26:20 -07:00
David du Colombier
2debfeb936 os: handle 'has been removed' error as IsNotExist on Plan 9
It fixes the TestRemoveAllRace test introduced
in CL 145860043.

LGTM=bradfitz
R=rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/147820044
2014-09-18 21:16:01 -04:00
Russ Cox
84f9c42bbb os: skip TestRemoveAllRace on Windows
It's just fundamentally incompatible with
Windows' pickiness about removing things
that are in use.

TBR=brainman
CC=golang-codereviews
https://golang.org/cl/142270043
2014-09-18 20:13:07 -04:00
Russ Cox
98a5f52ef0 os: avoid error result when dir is removed out from under RemoveAll
Fixes #7776.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews, r
https://golang.org/cl/145860043
2014-09-18 14:48:47 -04:00
Mikio Hara
484cc67151 net: separate NaCl dependent placeholders from BSD's
To clarify the dependency of NaCl platform.

LGTM=adg
R=golang-codereviews, adg
CC=golang-codereviews
https://golang.org/cl/143830044
2014-09-18 19:17:55 +09:00
Russ Cox
c1e332020d os/signal: increase timeout from 10ms to 100ms
Might make test less flaky.
Fixes #8682.

LGTM=bradfitz
R=bradfitz
CC=golang-codereviews
https://golang.org/cl/143160043
2014-09-16 15:26:00 -04:00
Russ Cox
c007ce824d build: move package sources from src/pkg to src
Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
2014-09-08 00:08:51 -04:00