diff options
Diffstat (limited to 'libdwfl/frame_unwind.c')
| -rw-r--r-- | libdwfl/frame_unwind.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libdwfl/frame_unwind.c b/libdwfl/frame_unwind.c index d7dfa5a9..9ac33833 100644 --- a/libdwfl/frame_unwind.c +++ b/libdwfl/frame_unwind.c @@ -562,7 +562,11 @@ handle_cfi (Dwfl_Frame *state, Dwarf_Addr pc, Dwarf_CFI *cfi, Dwarf_Addr bias) /* The return register is special for setting the unwound->pc_state. */ unsigned ra = frame->fde->cie->return_address_register; bool ra_set = false; - ebl_dwarf_to_regno (ebl, &ra); + if (! ebl_dwarf_to_regno (ebl, &ra)) + { + __libdwfl_seterrno (DWFL_E_INVALID_REGISTER); + return; + } for (unsigned regno = 0; regno < nregs; regno++) { @@ -719,7 +723,8 @@ __libdwfl_frame_unwind (Dwfl_Frame *state) which would deadlock us. */ Dwarf_Addr pc; bool ok = INTUSE(dwfl_frame_pc) (state, &pc, NULL); - assert (ok); + if (!ok) + return; /* Check whether this is the initial frame or a signal frame. Then we need to unwind from the original, unadjusted PC. */ if (! state->initial_frame && ! state->signal_frame) |