diff options
Diffstat (limited to 'src/runtime/os_windows.c')
| -rw-r--r-- | src/runtime/os_windows.c | 52 |
1 files changed, 39 insertions, 13 deletions
diff --git a/src/runtime/os_windows.c b/src/runtime/os_windows.c index 77f99062c..b8b8eda5f 100644 --- a/src/runtime/os_windows.c +++ b/src/runtime/os_windows.c @@ -34,6 +34,7 @@ #pragma dynimport runtime·SetEvent SetEvent "kernel32.dll" #pragma dynimport runtime·SetProcessPriorityBoost SetProcessPriorityBoost "kernel32.dll" #pragma dynimport runtime·SetThreadPriority SetThreadPriority "kernel32.dll" +#pragma dynimport runtime·SetUnhandledExceptionFilter SetUnhandledExceptionFilter "kernel32.dll" #pragma dynimport runtime·SetWaitableTimer SetWaitableTimer "kernel32.dll" #pragma dynimport runtime·Sleep Sleep "kernel32.dll" #pragma dynimport runtime·SuspendThread SuspendThread "kernel32.dll" @@ -65,6 +66,7 @@ extern void *runtime·SetConsoleCtrlHandler; extern void *runtime·SetEvent; extern void *runtime·SetProcessPriorityBoost; extern void *runtime·SetThreadPriority; +extern void *runtime·SetUnhandledExceptionFilter; extern void *runtime·SetWaitableTimer; extern void *runtime·Sleep; extern void *runtime·SuspendThread; @@ -77,7 +79,9 @@ void *runtime·GetQueuedCompletionStatusEx; extern uintptr runtime·externalthreadhandlerp; void runtime·externalthreadhandler(void); -void runtime·sigtramp(void); +void runtime·exceptiontramp(void); +void runtime·firstcontinuetramp(void); +void runtime·lastcontinuetramp(void); #pragma textflag NOSPLIT uintptr @@ -106,12 +110,30 @@ void runtime·osinit(void) { void *kernel32; + void *addVectoredContinueHandler; + + kernel32 = runtime·stdcall1(runtime·LoadLibraryA, (uintptr)"kernel32.dll"); runtime·externalthreadhandlerp = (uintptr)runtime·externalthreadhandler; - runtime·stdcall2(runtime·AddVectoredExceptionHandler, 1, (uintptr)runtime·sigtramp); + runtime·stdcall2(runtime·AddVectoredExceptionHandler, 1, (uintptr)runtime·exceptiontramp); + addVectoredContinueHandler = nil; + if(kernel32 != nil) + addVectoredContinueHandler = runtime·stdcall2(runtime·GetProcAddress, (uintptr)kernel32, (uintptr)"AddVectoredContinueHandler"); + if(addVectoredContinueHandler == nil || sizeof(void*) == 4) { + // use SetUnhandledExceptionFilter for windows-386 or + // if VectoredContinueHandler is unavailable. + // note: SetUnhandledExceptionFilter handler won't be called, if debugging. + runtime·stdcall1(runtime·SetUnhandledExceptionFilter, (uintptr)runtime·lastcontinuetramp); + } else { + runtime·stdcall2(addVectoredContinueHandler, 1, (uintptr)runtime·firstcontinuetramp); + runtime·stdcall2(addVectoredContinueHandler, 0, (uintptr)runtime·lastcontinuetramp); + } + runtime·stdcall2(runtime·SetConsoleCtrlHandler, (uintptr)runtime·ctrlhandler, 1); + runtime·stdcall1(runtime·timeBeginPeriod, 1); + runtime·ncpu = getproccount(); // Windows dynamic priority boosting assumes that a process has different types @@ -120,7 +142,6 @@ runtime·osinit(void) // In such context dynamic priority boosting does nothing but harm, so we turn it off. runtime·stdcall2(runtime·SetProcessPriorityBoost, -1, 1); - kernel32 = runtime·stdcall1(runtime·LoadLibraryA, (uintptr)"kernel32.dll"); if(kernel32 != nil) { runtime·GetQueuedCompletionStatusEx = runtime·stdcall2(runtime·GetProcAddress, (uintptr)kernel32, (uintptr)"GetQueuedCompletionStatusEx"); } @@ -268,19 +289,19 @@ runtime·mpreinit(M *mp) void runtime·minit(void) { - void *thandle; + uintptr thandle; // -1 = current process, -2 = current thread runtime·stdcall7(runtime·DuplicateHandle, -1, -2, -1, (uintptr)&thandle, 0, 0, DUPLICATE_SAME_ACCESS); - runtime·atomicstorep(&g->m->thread, thandle); + runtime·atomicstoreuintptr(&g->m->thread, thandle); } // Called from dropm to undo the effect of an minit. void runtime·unminit(void) { - runtime·stdcall1(runtime·CloseHandle, (uintptr)g->m->thread); - g->m->thread = nil; + runtime·stdcall1(runtime·CloseHandle, g->m->thread); + g->m->thread = 0; } // Described in http://www.dcl.hpi.uni-potsdam.de/research/WRK/2007/08/getting-os-information-the-kuser_shared_data-structure/ @@ -467,6 +488,7 @@ runtime·issigpanic(uint32 code) case EXCEPTION_FLT_INEXACT_RESULT: case EXCEPTION_FLT_OVERFLOW: case EXCEPTION_FLT_UNDERFLOW: + case EXCEPTION_BREAKPOINT: return 1; } return 0; @@ -475,10 +497,14 @@ runtime·issigpanic(uint32 code) void runtime·initsig(void) { - // following line keeps sigtramp alive at link stage + // following line keeps these functions alive at link stage // if there's a better way please write it here - void *p = runtime·sigtramp; - USED(p); + void *e = runtime·exceptiontramp; + void *f = runtime·firstcontinuetramp; + void *l = runtime·lastcontinuetramp; + USED(e); + USED(f); + USED(l); } uint32 @@ -532,7 +558,7 @@ void runtime·profileloop1(void) { M *mp, *allm; - void *thread; + uintptr thread; runtime·stdcall2(runtime·SetThreadPriority, -2, THREAD_PRIORITY_HIGHEST); @@ -540,11 +566,11 @@ runtime·profileloop1(void) runtime·stdcall2(runtime·WaitForSingleObject, (uintptr)profiletimer, -1); allm = runtime·atomicloadp(&runtime·allm); for(mp = allm; mp != nil; mp = mp->alllink) { - thread = runtime·atomicloadp(&mp->thread); + thread = runtime·atomicloaduintptr(&mp->thread); // Do not profile threads blocked on Notes, // this includes idle worker threads, // idle timer thread, idle heap scavenger, etc. - if(thread == nil || mp->profilehz == 0 || mp->blocked) + if(thread == 0 || mp->profilehz == 0 || mp->blocked) continue; runtime·stdcall1(runtime·SuspendThread, (uintptr)thread); if(mp->profilehz != 0 && !mp->blocked) |