diff options
Diffstat (limited to 'gcc/frame.c')
| -rw-r--r-- | gcc/frame.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/gcc/frame.c b/gcc/frame.c index 747fb9f..296e6a9 100644 --- a/gcc/frame.c +++ b/gcc/frame.c @@ -39,6 +39,13 @@ Boston, MA 02111-1307, USA. */ #include "dwarf2.h" #include <stddef.h> #include "frame.h" +#include "libgcc-thr.h" + +#ifdef __GTHREAD_MUTEX_INIT +static __gthread_mutex_t object_mutex = __GTHREAD_MUTEX_INIT; +#else +static __gthread_mutex_t object_mutex; +#endif /* Don't use `fancy_abort' here even if config.h says to use it. */ #ifdef abort @@ -296,6 +303,8 @@ find_fde (void *pc) struct object *ob; size_t lo, hi; + __gthread_mutex_lock (&object_mutex); + for (ob = objects; ob; ob = ob->next) { if (ob->pc_begin == 0) @@ -304,6 +313,8 @@ find_fde (void *pc) break; } + __gthread_mutex_unlock (&object_mutex); + if (ob == 0) return 0; @@ -509,8 +520,12 @@ __register_frame (void *begin, struct object *ob) ob->fde_array = 0; ob->count = 0; + __gthread_mutex_lock (&object_mutex); + ob->next = objects; objects = ob; + + __gthread_mutex_unlock (&object_mutex); } /* Similar, but BEGIN is actually a pointer to a table of unwind entries @@ -526,8 +541,12 @@ __register_frame_table (void *begin, struct object *ob) ob->pc_begin = ob->pc_end = 0; ob->count = 0; + __gthread_mutex_lock (&object_mutex); + ob->next = objects; objects = ob; + + __gthread_mutex_unlock (&object_mutex); } /* Called from crtend.o to deregister the unwind info for an object. */ @@ -535,8 +554,11 @@ __register_frame_table (void *begin, struct object *ob) void __deregister_frame (void *begin) { - struct object **p = &objects; + struct object **p; + __gthread_mutex_lock (&object_mutex); + + p = &objects; while (*p) { if ((*p)->fde_begin == begin) @@ -548,10 +570,13 @@ __deregister_frame (void *begin) if (ob->pc_begin) free (ob->fde_array); + __gthread_mutex_unlock (&object_mutex); return; } p = &((*p)->next); } + + __gthread_mutex_unlock (&object_mutex); abort (); } |