1
0
mirror of https://github.com/golang/go synced 2024-10-04 18:31:22 -06:00
Commit Graph

6 Commits

Author SHA1 Message Date
Dmitriy Vyukov
8a3c587dc1 runtime: fix and improve CPU profiling
- do not lose profiling signals when we have no mcache (possible for syscalls/cgo)
- do not lose any profiling signals on windows
- fix profiling of cgo programs on windows (they had no m->thread setup)
- properly setup tls in cgo programs on windows
- check _beginthread return value

Fixes #6417.
Fixes #6986.

R=alex.brainman, rsc
CC=golang-codereviews
https://golang.org/cl/44820047
2014-01-22 10:30:10 +04:00
Russ Cox
5bffa3b88e runtime/cgo: move common symbol overrides into 6c-compiled code
There are some function pointers declared by 6c in
package runtime without initialization and then also
declared in package runtime/cgo with initialization,
so that if runtime/cgo is linked in, the function pointers
are non-nil, and otherwise they are nil. We depend on
this property for implementing non-essential cgo hooks
in package runtime.

The declarations in package runtime are 6c-compiled
and end up in .6 files. The declarations in package runtime/cgo
are gcc-compiled and end up in .o files. Since 6l links the .6
and .o files together, this all works.

However, when we switch to "external linking" mode,
6l will not see the .o files, and it would be up to the host linker
to resolve the two into a single initialized symbol.
Not all host linkers will do this (in particular OS X gcc will not).

To fix this, move the cgo declarations into 6c-compiled code,
so that they end up in .6 files, so that 6l gets them no matter what.

R=golang-dev
CC=golang-dev
https://golang.org/cl/7440045
2013-02-28 13:54:23 -08:00
Russ Cox
f8d49b509b runtime/cgo: make symbol naming consistent
The naming in this package is a disaster.
Make it all consistent.

Remove some 'static' from functions that will
be referred to from other files soon.

This CL is purely renames using global search and replace.

Submitting separately so that real changes will not
be drowned out by these renames in future CLs.

TBR=iant
CC=golang-dev
https://golang.org/cl/7416046
2013-02-28 16:24:38 -05:00
Shenghou Ma
3513d84068 runtime/cgo: fix compilation on Windows with CFLAGS -Wall -Werror
also fix one out-of-date comment in cmd/ld/pe.c as well.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/6843061
2012-11-18 02:06:08 +08:00
Wei Guangjing
9569c67a6b windows: use ArbitraryUserPointer as TLS slot
R=hectorchu, alex.brainman
CC=golang-dev
https://golang.org/cl/5519054
2012-01-09 11:23:07 +11:00
Russ Cox
54fb9940cf go: build runtime/cgo
Also rename -v to -x in the build and install commands,
to match the flag in go test (which we can't change
because -v is taken).  Matches sh -x anyway.

R=r, iant, ality
CC=golang-dev
https://golang.org/cl/5504045
2011-12-20 14:25:23 -05:00