* [binutils-gdb] PR32067, ld -Wl,--oformat,binary crash in _bfd_elf_link_keep_memory
@ 2024-08-10 1:00 Alan Modra
0 siblings, 0 replies; only message in thread
From: Alan Modra @ 2024-08-10 1:00 UTC (permalink / raw)
To: binutils-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ec8f5671b4e70806fe3053636426a8d179dfef55
commit ec8f5671b4e70806fe3053636426a8d179dfef55
Author: Alan Modra <amodra@gmail.com>
Date: Sat Aug 10 08:41:16 2024 +0930
PR32067, ld -Wl,--oformat,binary crash in _bfd_elf_link_keep_memory
The direct fix for this segfault is to test for a non-NULL bed in
_bfd_elf_link_keep_memory, but also there isn't much point in running
code for LTO if the output is binary.
PR 32067
* elflink.c (_bfd_elf_link_keep_memory): Test for non-NULL bed.
(elf_link_add_object_symbols): Don't run the loop setting
non_ir_ref_regular if the output hash table is not ELF.
Diff:
---
bfd/elflink.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/bfd/elflink.c b/bfd/elflink.c
index a180e59e8ca..2430d606c30 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -64,7 +64,7 @@ _bfd_elf_link_keep_memory (struct bfd_link_info *info)
this is opt-in by each backend. */
const struct elf_backend_data *bed
= get_elf_backend_data (info->output_bfd);
- if (bed->use_mmap)
+ if (bed != NULL && bed->use_mmap)
return false;
#endif
bfd *abfd;
@@ -5694,7 +5694,8 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
&& !bfd_link_relocatable (info)
&& (abfd->flags & BFD_PLUGIN) == 0
&& !just_syms
- && extsymcount)
+ && extsymcount != 0
+ && is_elf_hash_table (&htab->root))
{
int r_sym_shift;
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