addr2line.c: DW_LNS_fixed_advance_pc takes a single uhalf operand

Fixes [Bug #17609] Co-Authored-By: xtkoba (Tee KOBAYASHI) <xtkoba+ruby@gmail.com>
ruby · Feb 4, 2021 · 7d22060 · 7d22060
1 parent 90f008f
commit 7d22060
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/addr2line.c b/addr2line.c
@@ -437,7 +437,8 @@ parse_debug_line_cu(int num_traces, void **traces, char **debug_line,
 	    addr += a;
 	    break;
 	case DW_LNS_fixed_advance_pc:
-	    a = *(unsigned char *)p++;
+	    a = *(uint16_t *)p;
+	    p += sizeof(uint16_t);
 	    addr += a;
 	    break;
 	case DW_LNS_set_prologue_end: