diff options
Diffstat (limited to 'binutils/dwarf.c')
| -rw-r--r-- | binutils/dwarf.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/binutils/dwarf.c b/binutils/dwarf.c index aa19725..2edacb8 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -5949,6 +5949,7 @@ display_debug_frames (struct dwarf_section *section, { unsigned int reg, op, opa; unsigned long temp; + unsigned char * new_start; op = *start++; opa = op & 0x3f; @@ -6019,26 +6020,28 @@ display_debug_frames (struct dwarf_section *section, break; case DW_CFA_def_cfa_expression: temp = LEB (); - if (start + temp < start) + new_start = start + temp; + if (new_start < start) { warn (_("Corrupt CFA_def expression value: %lu\n"), temp); start = block_end; } else - start += temp; + start = new_start; break; case DW_CFA_expression: case DW_CFA_val_expression: reg = LEB (); temp = LEB (); - if (start + temp < start) + new_start = start + temp; + if (new_start < start) { /* PR 17512: file:306-192417-0.005. */ warn (_("Corrupt CFA expression value: %lu\n"), temp); start = block_end; } else - start += temp; + start = new_start; if (frame_need_space (fc, reg) >= 0) fc->col_type[reg] = DW_CFA_undefined; break; |