2010-01-06 18:58:55 -07:00
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "runtime.h"
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2011-02-01 09:49:24 -07:00
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#include "type.h"
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#include "defs.h"
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2010-01-06 18:58:55 -07:00
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#include "os.h"
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#pragma dynimport runtime·CloseHandle CloseHandle "kernel32.dll"
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#pragma dynimport runtime·CreateEvent CreateEventA "kernel32.dll"
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#pragma dynimport runtime·CreateThread CreateThread "kernel32.dll"
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#pragma dynimport runtime·CreateWaitableTimer CreateWaitableTimerA "kernel32.dll"
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#pragma dynimport runtime·DuplicateHandle DuplicateHandle "kernel32.dll"
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#pragma dynimport runtime·ExitProcess ExitProcess "kernel32.dll"
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#pragma dynimport runtime·FreeEnvironmentStringsW FreeEnvironmentStringsW "kernel32.dll"
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#pragma dynimport runtime·GetEnvironmentStringsW GetEnvironmentStringsW "kernel32.dll"
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#pragma dynimport runtime·GetProcAddress GetProcAddress "kernel32.dll"
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#pragma dynimport runtime·GetStdHandle GetStdHandle "kernel32.dll"
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#pragma dynimport runtime·GetSystemInfo GetSystemInfo "kernel32.dll"
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#pragma dynimport runtime·GetThreadContext GetThreadContext "kernel32.dll"
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#pragma dynimport runtime·LoadLibraryEx LoadLibraryExA "kernel32.dll"
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#pragma dynimport runtime·QueryPerformanceCounter QueryPerformanceCounter "kernel32.dll"
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#pragma dynimport runtime·QueryPerformanceFrequency QueryPerformanceFrequency "kernel32.dll"
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#pragma dynimport runtime·ResumeThread ResumeThread "kernel32.dll"
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#pragma dynimport runtime·SetConsoleCtrlHandler SetConsoleCtrlHandler "kernel32.dll"
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#pragma dynimport runtime·SetEvent SetEvent "kernel32.dll"
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#pragma dynimport runtime·SetThreadPriority SetThreadPriority "kernel32.dll"
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#pragma dynimport runtime·SetWaitableTimer SetWaitableTimer "kernel32.dll"
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#pragma dynimport runtime·Sleep Sleep "kernel32.dll"
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#pragma dynimport runtime·SuspendThread SuspendThread "kernel32.dll"
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#pragma dynimport runtime·timeBeginPeriod timeBeginPeriod "winmm.dll"
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#pragma dynimport runtime·WaitForSingleObject WaitForSingleObject "kernel32.dll"
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#pragma dynimport runtime·WriteFile WriteFile "kernel32.dll"
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2010-01-06 18:58:55 -07:00
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2010-12-12 22:41:02 -07:00
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extern void *runtime·CloseHandle;
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extern void *runtime·CreateEvent;
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extern void *runtime·CreateThread;
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extern void *runtime·CreateWaitableTimer;
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extern void *runtime·DuplicateHandle;
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extern void *runtime·ExitProcess;
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extern void *runtime·FreeEnvironmentStringsW;
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extern void *runtime·GetEnvironmentStringsW;
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extern void *runtime·GetProcAddress;
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extern void *runtime·GetStdHandle;
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extern void *runtime·GetSystemInfo;
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extern void *runtime·GetThreadContext;
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extern void *runtime·LoadLibraryEx;
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extern void *runtime·QueryPerformanceCounter;
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extern void *runtime·QueryPerformanceFrequency;
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extern void *runtime·ResumeThread;
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extern void *runtime·SetConsoleCtrlHandler;
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extern void *runtime·SetEvent;
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extern void *runtime·SetThreadPriority;
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extern void *runtime·SetWaitableTimer;
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extern void *runtime·Sleep;
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extern void *runtime·SuspendThread;
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extern void *runtime·timeBeginPeriod;
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extern void *runtime·WaitForSingleObject;
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extern void *runtime·WriteFile;
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2011-02-01 09:49:24 -07:00
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static int64 timerfreq;
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static int32
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getproccount(void)
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{
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SystemInfo info;
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runtime·stdcall(runtime·GetSystemInfo, 1, &info);
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return info.dwNumberOfProcessors;
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}
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2010-01-06 18:58:55 -07:00
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void
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
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runtime·osinit(void)
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{
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// -1 = current process, -2 = current thread
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runtime·stdcall(runtime·DuplicateHandle, 7,
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(uintptr)-1, (uintptr)-2, (uintptr)-1, &m->thread,
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(uintptr)0, (uintptr)0, (uintptr)DUPLICATE_SAME_ACCESS);
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runtime·stdcall(runtime·QueryPerformanceFrequency, 1, &timerfreq);
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runtime·stdcall(runtime·SetConsoleCtrlHandler, 2, runtime·ctrlhandler, (uintptr)1);
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runtime·stdcall(runtime·timeBeginPeriod, 1, (uintptr)1);
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runtime·ncpu = getproccount();
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}
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2011-01-11 17:48:15 -07:00
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void
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runtime·goenvs(void)
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{
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extern Slice os·Envs;
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uint16 *env;
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String *s;
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int32 i, n;
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uint16 *p;
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env = runtime·stdcall(runtime·GetEnvironmentStringsW, 0);
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n = 0;
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for(p=env; *p; n++)
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p += runtime·findnullw(p)+1;
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s = runtime·malloc(n*sizeof s[0]);
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p = env;
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for(i=0; i<n; i++) {
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s[i] = runtime·gostringw(p);
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p += runtime·findnullw(p)+1;
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}
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os·Envs.array = (byte*)s;
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os·Envs.len = n;
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os·Envs.cap = n;
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runtime·stdcall(runtime·FreeEnvironmentStringsW, 1, env);
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}
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2010-01-06 18:58:55 -07:00
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void
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
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runtime·exit(int32 code)
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2010-01-06 18:58:55 -07:00
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{
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runtime·stdcall(runtime·ExitProcess, 1, (uintptr)code);
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}
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int32
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
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runtime·write(int32 fd, void *buf, int32 n)
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{
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void *handle;
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uint32 written;
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written = 0;
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switch(fd) {
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case 1:
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handle = runtime·stdcall(runtime·GetStdHandle, 1, (uintptr)-11);
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break;
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case 2:
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handle = runtime·stdcall(runtime·GetStdHandle, 1, (uintptr)-12);
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break;
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default:
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return -1;
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}
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2011-06-27 20:46:16 -06:00
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runtime·stdcall(runtime·WriteFile, 5, handle, buf, (uintptr)n, &written, (uintptr)0);
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2010-01-06 18:58:55 -07:00
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return written;
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}
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2011-09-30 12:33:13 -06:00
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void
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runtime·osyield(void)
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{
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runtime·stdcall(runtime·Sleep, 1, (uintptr)0);
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}
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void
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runtime·usleep(uint32 us)
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{
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us /= 1000;
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if(us == 0)
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us = 1;
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runtime·stdcall(runtime·Sleep, 1, (uintptr)us);
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}
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2010-01-06 18:58:55 -07:00
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// Thread-safe allocation of an event.
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static void
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initevent(void **pevent)
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{
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void *event;
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2011-06-27 20:46:16 -06:00
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event = runtime·stdcall(runtime·CreateEvent, 4, (uintptr)0, (uintptr)0, (uintptr)0, (uintptr)0);
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
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if(!runtime·casp(pevent, 0, event)) {
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2010-01-06 18:58:55 -07:00
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// Someone else filled it in. Use theirs.
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
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runtime·stdcall(runtime·CloseHandle, 1, event);
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2010-01-06 18:58:55 -07:00
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}
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}
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2011-09-14 18:23:21 -06:00
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#define LOCK_HELD ((M*)-1)
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2010-01-06 18:58:55 -07:00
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static void
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eventlock(Lock *l)
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{
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// Allocate event if needed.
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2011-09-14 18:23:21 -06:00
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if(m->event == nil)
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initevent(&m->event);
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for(;;) {
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m->nextwaitm = runtime·atomicloadp(&l->waitm);
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if(m->nextwaitm == nil) {
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if(runtime·casp(&l->waitm, nil, LOCK_HELD))
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return;
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// Someone else has it.
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// l->waitm points to a linked list of M's waiting
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// for this lock, chained through m->nextwaitm.
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// Queue this M.
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} else if(runtime·casp(&l->waitm, m->nextwaitm, m))
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break;
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}
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2010-01-06 18:58:55 -07:00
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2011-09-14 18:23:21 -06:00
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// Wait.
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runtime·stdcall(runtime·WaitForSingleObject, 2, m->event, (uintptr)-1);
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2010-01-06 18:58:55 -07:00
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}
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static void
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eventunlock(Lock *l)
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{
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2011-09-14 18:23:21 -06:00
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M *mp;
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for(;;) {
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mp = runtime·atomicloadp(&l->waitm);
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if(mp == LOCK_HELD) {
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if(runtime·casp(&l->waitm, LOCK_HELD, nil))
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return;
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// Other M's are waiting for the lock.
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// Dequeue a M.
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} else if(runtime·casp(&l->waitm, mp, mp->nextwaitm))
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break;
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}
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// Wake that M.
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runtime·stdcall(runtime·SetEvent, 1, mp->event);
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2010-01-06 18:58:55 -07:00
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}
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void
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
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runtime·lock(Lock *l)
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2010-01-06 18:58:55 -07:00
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{
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if(m->locks < 0)
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runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·throw("lock count");
|
2010-01-06 18:58:55 -07:00
|
|
|
m->locks++;
|
|
|
|
eventlock(l);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·unlock(Lock *l)
|
2010-01-06 18:58:55 -07:00
|
|
|
{
|
|
|
|
m->locks--;
|
|
|
|
if(m->locks < 0)
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·throw("lock count");
|
2010-01-06 18:58:55 -07:00
|
|
|
eventunlock(l);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·noteclear(Note *n)
|
2010-01-06 18:58:55 -07:00
|
|
|
{
|
2011-09-14 18:23:21 -06:00
|
|
|
n->lock.waitm = nil;
|
2010-01-06 18:58:55 -07:00
|
|
|
eventlock(&n->lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·notewakeup(Note *n)
|
2010-01-06 18:58:55 -07:00
|
|
|
{
|
|
|
|
eventunlock(&n->lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·notesleep(Note *n)
|
2010-01-06 18:58:55 -07:00
|
|
|
{
|
|
|
|
eventlock(&n->lock);
|
|
|
|
eventunlock(&n->lock); // Let other sleepers find out too.
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·newosproc(M *m, G *g, void *stk, void (*fn)(void))
|
2010-01-06 18:58:55 -07:00
|
|
|
{
|
2011-02-14 15:42:25 -07:00
|
|
|
void *thandle;
|
|
|
|
|
2010-09-11 19:45:16 -06:00
|
|
|
USED(stk);
|
|
|
|
USED(g); // assuming g = m->g0
|
|
|
|
USED(fn); // assuming fn = mstart
|
|
|
|
|
2011-09-17 01:57:59 -06:00
|
|
|
thandle = runtime·stdcall(runtime·CreateThread, 6,
|
|
|
|
nil, nil, runtime·tstart_stdcall, m, nil, nil);
|
|
|
|
if(thandle == nil) {
|
2011-02-14 15:42:25 -07:00
|
|
|
runtime·printf("runtime: failed to create new OS thread (have %d already; errno=%d)\n", runtime·mcount(), runtime·getlasterror());
|
|
|
|
runtime·throw("runtime.newosproc");
|
|
|
|
}
|
2011-09-17 01:57:59 -06:00
|
|
|
runtime·atomicstorep(&m->thread, thandle);
|
2010-01-06 18:58:55 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
// Called to initialize a new m (including the bootstrap m).
|
|
|
|
void
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·minit(void)
|
2010-01-06 18:58:55 -07:00
|
|
|
{
|
|
|
|
}
|
2010-06-11 02:38:12 -06:00
|
|
|
|
2011-02-01 09:49:24 -07:00
|
|
|
void
|
|
|
|
runtime·gettime(int64 *sec, int32 *usec)
|
|
|
|
{
|
|
|
|
int64 count;
|
|
|
|
|
|
|
|
runtime·stdcall(runtime·QueryPerformanceCounter, 1, &count);
|
|
|
|
*sec = count / timerfreq;
|
|
|
|
count %= timerfreq;
|
|
|
|
*usec = count*1000000 / timerfreq;
|
|
|
|
}
|
|
|
|
|
2010-06-11 02:38:12 -06:00
|
|
|
// Calling stdcall on os stack.
|
|
|
|
#pragma textflag 7
|
|
|
|
void *
|
runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost
Prefix all external symbols in runtime by runtime·,
to avoid conflicts with possible symbols of the same
name in linked-in C libraries. The obvious conflicts
are printf, malloc, and free, but hide everything to
avoid future pain.
The symbols left alone are:
** known to cgo **
_cgo_free
_cgo_malloc
libcgo_thread_start
initcgo
ncgocall
** known to linker **
_rt0_$GOARCH
_rt0_$GOARCH_$GOOS
text
etext
data
end
pclntab
epclntab
symtab
esymtab
** known to C compiler **
_divv
_modv
_div64by32
etc (arch specific)
Tested on darwin/386, darwin/amd64, linux/386, linux/amd64.
Built (but not tested) for freebsd/386, freebsd/amd64, linux/arm, windows/386.
R=r, PeterGo
CC=golang-dev
https://golang.org/cl/2899041
2010-11-04 12:00:19 -06:00
|
|
|
runtime·stdcall(void *fn, int32 count, ...)
|
2010-06-11 02:38:12 -06:00
|
|
|
{
|
2011-08-27 07:17:00 -06:00
|
|
|
WinCall c;
|
|
|
|
|
|
|
|
c.fn = fn;
|
|
|
|
c.n = count;
|
|
|
|
c.args = (uintptr*)&count + 1;
|
|
|
|
runtime·asmcgocall(runtime·asmstdcall, &c);
|
2011-09-14 00:19:45 -06:00
|
|
|
return (void*)c.r1;
|
2010-06-11 02:38:12 -06:00
|
|
|
}
|
2011-01-19 13:10:15 -07:00
|
|
|
|
|
|
|
uint32
|
|
|
|
runtime·issigpanic(uint32 code)
|
|
|
|
{
|
|
|
|
switch(code) {
|
|
|
|
case EXCEPTION_ACCESS_VIOLATION:
|
|
|
|
case EXCEPTION_INT_DIVIDE_BY_ZERO:
|
|
|
|
case EXCEPTION_INT_OVERFLOW:
|
|
|
|
case EXCEPTION_FLT_DENORMAL_OPERAND:
|
|
|
|
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
|
|
|
|
case EXCEPTION_FLT_INEXACT_RESULT:
|
|
|
|
case EXCEPTION_FLT_OVERFLOW:
|
|
|
|
case EXCEPTION_FLT_UNDERFLOW:
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
runtime·sigpanic(void)
|
|
|
|
{
|
|
|
|
switch(g->sig) {
|
|
|
|
case EXCEPTION_ACCESS_VIOLATION:
|
|
|
|
if(g->sigcode1 < 0x1000)
|
|
|
|
runtime·panicstring("invalid memory address or nil pointer dereference");
|
|
|
|
runtime·printf("unexpected fault address %p\n", g->sigcode1);
|
|
|
|
runtime·throw("fault");
|
|
|
|
case EXCEPTION_INT_DIVIDE_BY_ZERO:
|
|
|
|
runtime·panicstring("integer divide by zero");
|
|
|
|
case EXCEPTION_INT_OVERFLOW:
|
|
|
|
runtime·panicstring("integer overflow");
|
|
|
|
case EXCEPTION_FLT_DENORMAL_OPERAND:
|
|
|
|
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
|
|
|
|
case EXCEPTION_FLT_INEXACT_RESULT:
|
|
|
|
case EXCEPTION_FLT_OVERFLOW:
|
|
|
|
case EXCEPTION_FLT_UNDERFLOW:
|
|
|
|
runtime·panicstring("floating point error");
|
|
|
|
}
|
|
|
|
runtime·throw("fault");
|
|
|
|
}
|
2011-01-21 19:55:53 -07:00
|
|
|
|
2011-02-14 10:15:13 -07:00
|
|
|
String
|
|
|
|
runtime·signame(int32 sig)
|
|
|
|
{
|
|
|
|
int8 *s;
|
|
|
|
|
|
|
|
switch(sig) {
|
|
|
|
case SIGINT:
|
|
|
|
s = "SIGINT: interrupt";
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return runtime·emptystring;
|
|
|
|
}
|
|
|
|
return runtime·gostringnocopy((byte*)s);
|
|
|
|
}
|
|
|
|
|
|
|
|
uint32
|
|
|
|
runtime·ctrlhandler1(uint32 type)
|
|
|
|
{
|
|
|
|
int32 s;
|
|
|
|
|
|
|
|
switch(type) {
|
|
|
|
case CTRL_C_EVENT:
|
|
|
|
case CTRL_BREAK_EVENT:
|
|
|
|
s = SIGINT;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(runtime·sigsend(s))
|
|
|
|
return 1;
|
|
|
|
runtime·exit(2); // SIGINT, SIGTERM, etc
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-09-17 01:57:59 -06:00
|
|
|
extern void runtime·dosigprof(Context *r, G *gp);
|
|
|
|
extern void runtime·profileloop(void);
|
|
|
|
static void *profiletimer;
|
|
|
|
|
|
|
|
static void
|
|
|
|
profilem(M *mp)
|
|
|
|
{
|
|
|
|
extern M runtime·m0;
|
|
|
|
extern uint32 runtime·tls0[];
|
|
|
|
byte rbuf[sizeof(Context)+15];
|
|
|
|
Context *r;
|
|
|
|
void *tls;
|
|
|
|
G *gp;
|
|
|
|
|
|
|
|
tls = mp->tls;
|
|
|
|
if(mp == &runtime·m0)
|
|
|
|
tls = runtime·tls0;
|
|
|
|
gp = *(G**)tls;
|
|
|
|
|
|
|
|
if(gp != nil && gp != mp->g0 && gp->status != Gsyscall) {
|
|
|
|
// align Context to 16 bytes
|
|
|
|
r = (Context*)((uintptr)(&rbuf[15]) & ~15);
|
|
|
|
r->ContextFlags = CONTEXT_CONTROL;
|
|
|
|
runtime·stdcall(runtime·GetThreadContext, 2, mp->thread, r);
|
|
|
|
runtime·dosigprof(r, gp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
runtime·profileloop1(void)
|
|
|
|
{
|
|
|
|
M *mp, *allm;
|
|
|
|
void *thread;
|
|
|
|
|
|
|
|
runtime·stdcall(runtime·SetThreadPriority, 2,
|
|
|
|
(uintptr)-2, (uintptr)THREAD_PRIORITY_HIGHEST);
|
|
|
|
|
|
|
|
for(;;) {
|
|
|
|
runtime·stdcall(runtime·WaitForSingleObject, 2, profiletimer, (uintptr)-1);
|
|
|
|
allm = runtime·atomicloadp(&runtime·allm);
|
|
|
|
for(mp = allm; mp != nil; mp = mp->alllink) {
|
|
|
|
thread = runtime·atomicloadp(&mp->thread);
|
|
|
|
if(thread == nil)
|
|
|
|
continue;
|
|
|
|
runtime·stdcall(runtime·SuspendThread, 1, thread);
|
|
|
|
if(mp->profilehz != 0)
|
|
|
|
profilem(mp);
|
|
|
|
runtime·stdcall(runtime·ResumeThread, 1, thread);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
runtime·resetcpuprofiler(int32 hz)
|
|
|
|
{
|
|
|
|
static Lock lock;
|
|
|
|
void *timer, *thread;
|
|
|
|
int32 ms;
|
|
|
|
int64 due;
|
|
|
|
|
|
|
|
runtime·lock(&lock);
|
|
|
|
if(profiletimer == nil) {
|
|
|
|
timer = runtime·stdcall(runtime·CreateWaitableTimer, 3, nil, nil, nil);
|
|
|
|
runtime·atomicstorep(&profiletimer, timer);
|
|
|
|
thread = runtime·stdcall(runtime·CreateThread, 6,
|
|
|
|
nil, nil, runtime·profileloop, nil, nil, nil);
|
|
|
|
runtime·stdcall(runtime·CloseHandle, 1, thread);
|
|
|
|
}
|
|
|
|
runtime·unlock(&lock);
|
|
|
|
|
|
|
|
ms = 0;
|
|
|
|
due = 1LL<<63;
|
|
|
|
if(hz > 0) {
|
|
|
|
ms = 1000 / hz;
|
|
|
|
if(ms == 0)
|
|
|
|
ms = 1;
|
|
|
|
due = ms * -10000;
|
|
|
|
}
|
|
|
|
runtime·stdcall(runtime·SetWaitableTimer, 6,
|
|
|
|
profiletimer, &due, (uintptr)ms, nil, nil, nil);
|
|
|
|
runtime·atomicstore((uint32*)&m->profilehz, hz);
|
|
|
|
}
|
|
|
|
|
2011-04-25 14:58:00 -06:00
|
|
|
void
|
|
|
|
os·sigpipe(void)
|
|
|
|
{
|
|
|
|
runtime·throw("too many writes on closed pipe");
|
|
|
|
}
|