100 lines
4.1 KiB
Diff
100 lines
4.1 KiB
Diff
diff --git a/darwin_stop_world.c b/darwin_stop_world.c
|
|
index 0468aaec..b348d869 100644
|
|
--- a/darwin_stop_world.c
|
|
+++ b/darwin_stop_world.c
|
|
@@ -356,6 +356,7 @@ GC_INNER void GC_push_all_stacks(void)
|
|
int nthreads = 0;
|
|
word total_size = 0;
|
|
mach_msg_type_number_t listcount = (mach_msg_type_number_t)THREAD_TABLE_SZ;
|
|
+ size_t stack_limit;
|
|
if (!EXPECT(GC_thr_initialized, TRUE))
|
|
GC_thr_init();
|
|
|
|
@@ -411,6 +412,19 @@ GC_INNER void GC_push_all_stacks(void)
|
|
GC_push_all_stack_sections(lo, hi, p->traced_stack_sect);
|
|
}
|
|
if (altstack_lo) {
|
|
+ // When a thread goes into a coroutine, we lose its original sp until
|
|
+ // control flow returns to the thread.
|
|
+ // While in the coroutine, the sp points outside the thread stack,
|
|
+ // so we can detect this and push the entire thread stack instead,
|
|
+ // as an approximation.
|
|
+ // We assume that the coroutine has similarly added its entire stack.
|
|
+ // This could be made accurate by cooperating with the application
|
|
+ // via new functions and/or callbacks.
|
|
+ stack_limit = pthread_get_stacksize_np(p->id);
|
|
+ if (altstack_lo >= altstack_hi || altstack_lo < altstack_hi - stack_limit) { // sp outside stack
|
|
+ altstack_lo = altstack_hi - stack_limit;
|
|
+ }
|
|
+
|
|
total_size += altstack_hi - altstack_lo;
|
|
GC_push_all_stack(altstack_lo, altstack_hi);
|
|
}
|
|
diff --git a/include/gc.h b/include/gc.h
|
|
index edab6c22..f2c61282 100644
|
|
--- a/include/gc.h
|
|
+++ b/include/gc.h
|
|
@@ -2172,6 +2172,11 @@ GC_API void GC_CALL GC_win32_free_heap(void);
|
|
(*GC_amiga_allocwrapper_do)(a,GC_malloc_atomic_ignore_off_page)
|
|
#endif /* _AMIGA && !GC_AMIGA_MAKINGLIB */
|
|
|
|
+#if !__APPLE__
|
|
+/* Patch doesn't work on apple */
|
|
+#define NIX_BOEHM_PATCH_VERSION 1
|
|
+#endif
|
|
+
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
diff --git a/pthread_stop_world.c b/pthread_stop_world.c
|
|
index b5d71e62..aed7b0bf 100644
|
|
--- a/pthread_stop_world.c
|
|
+++ b/pthread_stop_world.c
|
|
@@ -768,6 +768,8 @@ STATIC void GC_restart_handler(int sig)
|
|
/* world is stopped. Should not fail if it isn't. */
|
|
GC_INNER void GC_push_all_stacks(void)
|
|
{
|
|
+ size_t stack_limit;
|
|
+ pthread_attr_t pattr;
|
|
GC_bool found_me = FALSE;
|
|
size_t nthreads = 0;
|
|
int i;
|
|
@@ -851,6 +853,37 @@ GC_INNER void GC_push_all_stacks(void)
|
|
hi = p->altstack + p->altstack_size;
|
|
/* FIXME: Need to scan the normal stack too, but how ? */
|
|
/* FIXME: Assume stack grows down */
|
|
+ } else {
|
|
+#ifdef HAVE_PTHREAD_ATTR_GET_NP
|
|
+ if (!pthread_attr_init(&pattr)
|
|
+ || !pthread_attr_get_np(p->id, &pattr))
|
|
+#else /* HAVE_PTHREAD_GETATTR_NP */
|
|
+ if (pthread_getattr_np(p->id, &pattr))
|
|
+#endif
|
|
+ {
|
|
+ ABORT("GC_push_all_stacks: pthread_getattr_np failed!");
|
|
+ }
|
|
+ if (pthread_attr_getstacksize(&pattr, &stack_limit)) {
|
|
+ ABORT("GC_push_all_stacks: pthread_attr_getstacksize failed!");
|
|
+ }
|
|
+ if (pthread_attr_destroy(&pattr)) {
|
|
+ ABORT("GC_push_all_stacks: pthread_attr_destroy failed!");
|
|
+ }
|
|
+ // When a thread goes into a coroutine, we lose its original sp until
|
|
+ // control flow returns to the thread.
|
|
+ // While in the coroutine, the sp points outside the thread stack,
|
|
+ // so we can detect this and push the entire thread stack instead,
|
|
+ // as an approximation.
|
|
+ // We assume that the coroutine has similarly added its entire stack.
|
|
+ // This could be made accurate by cooperating with the application
|
|
+ // via new functions and/or callbacks.
|
|
+ #ifndef STACK_GROWS_UP
|
|
+ if (lo >= hi || lo < hi - stack_limit) { // sp outside stack
|
|
+ lo = hi - stack_limit;
|
|
+ }
|
|
+ #else
|
|
+ #error "STACK_GROWS_UP not supported in boost_coroutine2 (as of june 2021), so we don't support it in Nix."
|
|
+ #endif
|
|
}
|
|
GC_push_all_stack_sections(lo, hi, traced_stack_sect);
|
|
# ifdef STACK_GROWS_UP
|