diff options
| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-12-21 22:24:47 +0000 |
|---|---|---|
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-12-21 22:24:47 +0000 |
| commit | dfcc5de0612ab74bb3329e22f5d6487de84c40a4 (patch) | |
| tree | b581b11b17c97821c10249103de061834481481d /libgo/runtime/proc.c | |
| parent | 88f9060eb8b19564912ebca431808943c33ac6b5 (diff) | |
| download | gcc-dfcc5de0612ab74bb3329e22f5d6487de84c40a4.tar.gz | |
runtime: Catch signals on altstack, disable splitstack signal blocking.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182607 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgo/runtime/proc.c')
| -rw-r--r-- | libgo/runtime/proc.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libgo/runtime/proc.c b/libgo/runtime/proc.c index 34566fbf9a0..9225f825b88 100644 --- a/libgo/runtime/proc.c +++ b/libgo/runtime/proc.c @@ -29,6 +29,11 @@ extern void * __splitstack_resetcontext(void *context[10], size_t *); extern void *__splitstack_find(void *, void *, size_t *, void **, void **, void **); +extern void __splitstack_block_signals (int *, int *); + +extern void __splitstack_block_signals_context (void *context[10], int *, + int *); + #endif #if defined(USING_SPLIT_STACK) && defined(LINKER_SUPPORTS_SPLIT_STACK) @@ -862,6 +867,14 @@ runtime_mstart(void* mp) *(int*)0x21 = 0x21; } runtime_minit(); + +#ifdef USING_SPLIT_STACK + { + int dont_block_signals = 0; + __splitstack_block_signals(&dont_block_signals, nil); + } +#endif + schedule(nil); return nil; } @@ -1142,9 +1155,13 @@ runtime_malg(int32 stacksize, byte** ret_stack, size_t* ret_stacksize) newg = runtime_malloc(sizeof(G)); if(stacksize >= 0) { #if USING_SPLIT_STACK + int dont_block_signals = 0; + *ret_stack = __splitstack_makecontext(stacksize, &newg->stack_context[0], ret_stacksize); + __splitstack_block_signals_context(&newg->stack_context[0], + &dont_block_signals, nil); #else *ret_stack = runtime_mallocgc(stacksize, FlagNoProfiling|FlagNoGC, 0, 0); *ret_stacksize = stacksize; @@ -1186,8 +1203,12 @@ __go_go(void (*fn)(void*), void* arg) if((newg = gfget()) != nil){ #ifdef USING_SPLIT_STACK + int dont_block_signals = 0; + sp = __splitstack_resetcontext(&newg->stack_context[0], &spsize); + __splitstack_block_signals_context(&newg->stack_context[0], + &dont_block_signals, nil); #else sp = newg->gcinitial_sp; spsize = newg->gcstack_size; |