diff options
| author | Tom de Vries <tdevries@suse.de> | 2023-02-20 12:20:14 +0100 |
|---|---|---|
| committer | Tom de Vries <tdevries@suse.de> | 2023-02-20 12:20:14 +0100 |
| commit | 868014341a7befe77468a87ef9d9da109cbf3c3c (patch) | |
| tree | d4cea9a84bcda43eccd3d69701ee6442bb05b0f7 | |
| parent | 8908d9c45cde37c8a7840db80091b1190f209c8f (diff) | |
| download | binutils-868014341a7befe77468a87ef9d9da109cbf3c3c.zip binutils-868014341a7befe77468a87ef9d9da109cbf3c3c.tar.gz binutils-868014341a7befe77468a87ef9d9da109cbf3c3c.tar.bz2 | |
[gdb/symtab] Trust epilogue unwind info for unknown or non-gcc producer
Currently we only trust epilogue unwind info only for gcc >= 4.5.0.
This has the effect that we don't trust epilogue unwind info for:
- unknown producers (CU without DW_AT_producer attribute)
- non-gcc producers (say, clang).
Instead, only distrust epilogue unwind info only for gcc < 4.5.0.
| -rw-r--r-- | gdb/dwarf2/read.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index 11a2d3e..a5bc1d8 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -6460,7 +6460,13 @@ process_full_comp_unit (dwarf2_cu *cu, enum language pretend_language) if (cu->has_loclist && gcc_4_minor >= 5) cust->set_locations_valid (true); - if (gcc_4_minor >= 5) + int major, minor; + if (cu->producer != nullptr + && producer_is_gcc (cu->producer, &major, &minor) + && (major < 4 || (major == 4 && minor < 5))) + /* Don't trust gcc < 4.5.x. */ + cust->set_epilogue_unwind_valid (false); + else cust->set_epilogue_unwind_valid (true); cust->set_call_site_htab (cu->call_site_htab); |