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Add conservative stack capture

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This isn't really wired up yet anywhere, but add a precursor to
conservative stack scanning.
This commit is contained in:
Andy Wingo 2022-09-16 13:40:55 +02:00
parent a5b1a66d21
commit d2bde8319f
10 changed files with 200 additions and 58 deletions
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22
gc-api.h
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@ -7,6 +7,7 @@
#include "gc-inline.h"
#include "gc-ref.h"
#include "gc-edge.h"
#include "gc-visibility.h"
#include <stdatomic.h>
#include <stdint.h>
@ -27,21 +28,30 @@ struct gc_option {
// FIXME: Conflict with bdw-gc GC_API. Switch prefix?
#ifndef GC_API_
#define GC_API_ __attribute__((visibility("hidden")))
#define GC_API_ GC_INTERNAL
#endif
GC_API_ int gc_option_from_string(const char *str);
struct gc_stack_addr;
GC_API_ void* gc_call_with_stack_addr(void* (*f)(struct gc_stack_addr *,
void *),
void *data) GC_NEVER_INLINE;
GC_API_ int gc_init(int argc, struct gc_option argv[],
struct gc_heap **heap, struct gc_mutator **mutator);
struct gc_stack_addr *base, struct gc_heap **heap,
struct gc_mutator **mutator);
struct gc_mutator_roots;
struct gc_heap_roots;
GC_API_ void gc_mutator_set_roots(struct gc_mutator *mut,
struct gc_mutator_roots *roots);
GC_API_ void gc_heap_set_roots(struct gc_heap *heap, struct gc_heap_roots *roots);
GC_API_ struct gc_mutator* gc_init_for_thread(uintptr_t *stack_base,
struct gc_heap *heap);
struct gc_heap_roots;
GC_API_ void gc_heap_set_roots(struct gc_heap *heap,
struct gc_heap_roots *roots);
GC_API_ struct gc_mutator* gc_init_for_thread(struct gc_stack_addr *base,
struct gc_heap *heap);
GC_API_ void gc_finish_for_thread(struct gc_mutator *mut);
GC_API_ void* gc_call_without_gc(struct gc_mutator *mut, void* (*f)(void*),
void *data) GC_NEVER_INLINE;