diff options
Diffstat (limited to '')
| -rw-r--r-- | gc/include/gc_backptr.h (renamed from gc/include/backptr.h) | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gc/include/backptr.h b/gc/include/gc_backptr.h index d34224e..5899496 100644 --- a/gc/include/backptr.h +++ b/gc/include/gc_backptr.h @@ -20,6 +20,8 @@ * The implementation idea is due to A. Demers. */ +#ifndef GC_BACKPTR_H +#define GC_BACKPTR_H /* Store information about the object referencing dest in *base_p */ /* and *offset_p. */ /* If multiple objects or roots point to dest, the one reported */ @@ -29,9 +31,11 @@ /* source is heap object ==> *base_p != 0, *offset_p = offset */ /* Returns 1 on success, 0 if source couldn't be determined. */ /* Dest can be any address within a heap object. */ -typedef enum { GC_UNREFERENCED, /* No refence info available. */ +typedef enum { GC_UNREFERENCED, /* No reference info available. */ GC_NO_SPACE, /* Dest not allocated with debug alloc */ GC_REFD_FROM_ROOT, /* Referenced directly by root *base_p */ + GC_REFD_FROM_REG, /* Referenced from a register, i.e. */ + /* a root without an address. */ GC_REFD_FROM_HEAP, /* Referenced from another heap obj. */ GC_FINALIZER_REFD /* Finalizable and hence accessible. */ } GC_ref_kind; @@ -53,4 +57,9 @@ void * GC_generate_random_valid_address(void); /* source in dbg_mlc.c also serves as a sample client. */ void GC_generate_random_backtrace(void); +/* Print a backtrace from a specific address. Used by the */ +/* above. The client should call GC_gcollect() immediately */ +/* before invocation. */ +void GC_print_backtrace(void *); +#endif /* GC_BACKPTR_H */ |