diff options
| -rw-r--r-- | libbacktrace/dwarf.c | 39 |
1 files changed, 14 insertions, 25 deletions
diff --git a/libbacktrace/dwarf.c b/libbacktrace/dwarf.c index 546b4b2..e6b1f23 100644 --- a/libbacktrace/dwarf.c +++ b/libbacktrace/dwarf.c @@ -2857,20 +2857,15 @@ read_line_program (struct backtrace_state *state, struct dwarf_data *ddata, uint64_t fileno; fileno = read_uleb128 (line_buf); - if (fileno == 0) - filename = ""; - else + if (fileno >= hdr->filenames_count) { - if (fileno >= hdr->filenames_count) - { - dwarf_buf_error (line_buf, - ("invalid file number in " - "line number program"), - 0); - return 0; - } - filename = hdr->filenames[fileno]; + dwarf_buf_error (line_buf, + ("invalid file number in " + "line number program"), + 0); + return 0; } + filename = hdr->filenames[fileno]; } break; case DW_LNS_set_column: @@ -3298,21 +3293,15 @@ read_function_entry (struct backtrace_state *state, struct dwarf_data *ddata, case DW_AT_call_file: if (val.encoding == ATTR_VAL_UINT) { - if (val.u.uint == 0) - function->caller_filename = ""; - else + if (val.u.uint >= lhdr->filenames_count) { - if (val.u.uint >= lhdr->filenames_count) - { - dwarf_buf_error (unit_buf, - ("invalid file number in " - "DW_AT_call_file attribute"), - 0); - return 0; - } - function->caller_filename = - lhdr->filenames[val.u.uint]; + dwarf_buf_error (unit_buf, + ("invalid file number in " + "DW_AT_call_file attribute"), + 0); + return 0; } + function->caller_filename = lhdr->filenames[val.u.uint]; } break; |