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| author | Jakub Jelinek <jakub@redhat.com> | 2001-11-20 12:08:17 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2001-11-20 12:08:17 +0100 |
| commit | 55fae1a97f164c030db1b90d5d804ecc583a1ea9 (patch) | |
| tree | 448df8be40b9b79f08946f787229e142913e7922 /gcc | |
| parent | 5f0e9ea2789c1f2c3e28497a906857c3ba89564a (diff) | |
| download | gcc-55fae1a97f164c030db1b90d5d804ecc583a1ea9.zip gcc-55fae1a97f164c030db1b90d5d804ecc583a1ea9.tar.gz gcc-55fae1a97f164c030db1b90d5d804ecc583a1ea9.tar.bz2 | |
unwind-dw2-fde.c (__register_frame_info_bases, [...]): Don't register empty .eh_frame sections.
* unwind-dw2-fde.c (__register_frame_info_bases, __register_frame):
Don't register empty .eh_frame sections.
(__deregister_frame_info_bases, __deregister_frame): Don't
unregister them either.
From-SVN: r47211
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/unwind-dw2-fde.c | 20 |
2 files changed, 25 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bab397a..ecf3e82 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2001-11-20 Jakub Jelinek <jakub@redhat.com> + + * unwind-dw2-fde.c (__register_frame_info_bases, __register_frame): + Don't register empty .eh_frame sections. + (__deregister_frame_info_bases, __deregister_frame): Don't + unregister them either. + 2001-11-19 Geoffrey Keating <geoffk@redhat.com> * configure.in (HAVE_AS_GDWARF2_DEBUG_FLAG): Define. diff --git a/gcc/unwind-dw2-fde.c b/gcc/unwind-dw2-fde.c index 7052685..c8e6c5d 100644 --- a/gcc/unwind-dw2-fde.c +++ b/gcc/unwind-dw2-fde.c @@ -73,6 +73,10 @@ void __register_frame_info_bases (void *begin, struct object *ob, void *tbase, void *dbase) { + /* If .eh_frame is empty, don't register at all. */ + if (*(uword *)begin == 0) + return; + ob->pc_begin = (void *)-1; ob->tbase = tbase; ob->dbase = dbase; @@ -98,7 +102,13 @@ __register_frame_info (void *begin, struct object *ob) void __register_frame (void *begin) { - struct object *ob = (struct object *) malloc (sizeof (struct object)); + struct object *ob; + + /* If .eh_frame is empty, don't register at all. */ + if (*(uword *)begin == 0) + return; + + ob = (struct object *) malloc (sizeof (struct object)); __register_frame_info (begin, ob); } @@ -158,6 +168,10 @@ __deregister_frame_info_bases (void *begin) struct object **p; struct object *ob = 0; + /* If .eh_frame is empty, we haven't registered. */ + if (*(uword *)begin == 0) + return; + init_object_mutex_once (); __gthread_mutex_lock (&object_mutex); @@ -207,7 +221,9 @@ __deregister_frame_info (void *begin) void __deregister_frame (void *begin) { - free (__deregister_frame_info (begin)); + /* If .eh_frame is empty, we haven't registered. */ + if (*(uword *)begin != 0) + free (__deregister_frame_info (begin)); } |