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-rw-r--r--bfd/dwarf2.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c
index 88335cb..a207665 100644
--- a/bfd/dwarf2.c
+++ b/bfd/dwarf2.c
@@ -2044,19 +2044,16 @@ concat_filename (struct line_info_table *table, unsigned int file)
char *subdir_name = NULL;
char *name;
size_t len;
-
- if (table->files[file].dir
- /* PR 17512: file: 0317e960. */
- && table->files[file].dir
- <= (table->use_dir_and_file_0 ? table->num_dirs - 1 : table->num_dirs)
- /* PR 17512: file: 7f3d2e4b. */
- && table->dirs != NULL)
- {
- if (table->use_dir_and_file_0)
- subdir_name = table->dirs[table->files[file].dir];
- else
- subdir_name = table->dirs[table->files[file].dir - 1];
- }
+ unsigned int dir = table->files[file].dir;
+
+ if (!table->use_dir_and_file_0)
+ --dir;
+ /* Wrapping from 0 to -1u above gives the intended result with
+ the test below of leaving subdir_name NULL for pre-DWARF5 dir
+ of 0. */
+ /* PR 17512: file: 0317e960, file: 7f3d2e4b. */
+ if (dir < table->num_dirs)
+ subdir_name = table->dirs[dir];
if (!subdir_name || !IS_ABSOLUTE_PATH (subdir_name))
dir_name = table->comp_dir;