diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/ia64/unwind-ia64.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 93eb5e59849..a9ed335c991 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-06-08 Jakub Jelinek <jakub@redhat.com> + + * config/ia64/unwind-ia64.c (uw_frame_state_for): Don't assume a + leaf function without unwind info at RP 0. + 2004-05-01 Jakub Jelinek <jakub@redhat.com> * config/sparc/linux64.h (TARGET_DEFAULT): Make 64-bit by default diff --git a/gcc/config/ia64/unwind-ia64.c b/gcc/config/ia64/unwind-ia64.c index b8dee7ae0d6..4307cbcb67c 100644 --- a/gcc/config/ia64/unwind-ia64.c +++ b/gcc/config/ia64/unwind-ia64.c @@ -1781,8 +1781,10 @@ uw_frame_state_for (struct _Unwind_Context *context, _Unwind_FrameState *fs) an unwind table entry. This can only happen in the frame after unwinding through a signal - handler. Avoid infinite looping by requiring that B0 != RP. */ - if (context->br_loc[0] && *context->br_loc[0] != context->rp) + handler. Avoid infinite looping by requiring that B0 != RP. + RP == 0 terminates the chain. */ + if (context->br_loc[0] && *context->br_loc[0] != context->rp + && context->rp != 0) { fs->curr.reg[UNW_REG_RP].where = UNW_WHERE_BR; fs->curr.reg[UNW_REG_RP].when = -1; |