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| author | Tom Tromey <tromey@adacore.com> | 2023-08-17 08:08:42 -0600 |
|---|---|---|
| committer | Tom Tromey <tromey@adacore.com> | 2023-09-05 09:48:24 -0600 |
| commit | 655e4e52ef44c1670a3b6f979b85534279c9f6c1 (patch) | |
| tree | 9c17371de7a2952fc862d2df0283b91134eed174 /gdb/dwarf2 | |
| parent | b6ac461ace19ba19aaf135a028df4e67e47e21d7 (diff) | |
| download | gdb-655e4e52ef44c1670a3b6f979b85534279c9f6c1.zip gdb-655e4e52ef44c1670a3b6f979b85534279c9f6c1.tar.gz gdb-655e4e52ef44c1670a3b6f979b85534279c9f6c1.tar.bz2 | |
Avoid crash with Ada and -fdata-sections
A user noticed that gdb would crash when showing a backtrace.
Investigation showed this to be a crash in the DWARF reader when
handling a "pragma export" symbol. The bug here is that earlier code
decides to eliminate the symbol, but the export code tries to add it
anyway -- but to a NULL list.
Diffstat (limited to 'gdb/dwarf2')
| -rw-r--r-- | gdb/dwarf2/read.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index a538cb5..ef7f570 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -19203,7 +19203,8 @@ new_symbol (struct die_info *die, struct type *type, struct dwarf2_cu *cu, else list_to_add = cu->list_in_scope; - if (is_ada_import_or_export (cu, name, linkagename)) + if (list_to_add != nullptr + && is_ada_import_or_export (cu, name, linkagename)) { /* This is a Pragma Export. A Pragma Import won't be seen here, because it will not have a location |