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authorAlan Modra <amodra@gmail.com>2022-07-29 22:35:13 +0930
committerAlan Modra <amodra@gmail.com>2022-07-29 23:28:04 +0930
commit10948fb9fd66c029d59c97e04556ab827076336c (patch)
tree279c693318eea5eab01c98ebe5035e4fd6627b78 /bfd
parent76a4c1e063fabb45d15597a6dd17813e92875a43 (diff)
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Re: PR16005, avr linker crash on a particular instruction sequence with --relax
The last patch wasn't so clever. The contents in fact have already been read, just not cached where relax_delete_bytes expects them. relax_delete_bytes also modifies relocs and syms, so they should be cached too. PR 16005 * elf32-avr.c (elf32_avr_relax_delete_bytes): Revert last change. (elf32_avr_relax_section): Cache contents, relocs and syms before calling relax_delete_bytes.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/elf32-avr.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/bfd/elf32-avr.c b/bfd/elf32-avr.c
index 3a1d238..8c003d0 100644
--- a/bfd/elf32-avr.c
+++ b/bfd/elf32-avr.c
@@ -1927,9 +1927,6 @@ elf32_avr_relax_delete_bytes (bfd *abfd,
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
contents = elf_section_data (sec)->this_hdr.contents;
- if (contents == NULL
- && !bfd_malloc_and_get_section (abfd, sec, &contents))
- return false;
relax_info = get_avr_relax_info (sec);
toaddr = sec->size;
@@ -3071,6 +3068,10 @@ elf32_avr_relax_section (bfd *abfd,
"at address 0x%x deleted.\n",
(int) dot + insn_size);
+ elf_section_data (sec)->relocs = internal_relocs;
+ elf_section_data (sec)->this_hdr.contents = contents;
+ symtab_hdr->contents = (unsigned char *) isymbuf;
+
/* Delete two bytes of data. */
if (!elf32_avr_relax_delete_bytes (abfd, sec,
irel->r_offset + insn_size, 2,