public inbox for binutils-cvs@sourceware.org
help / color / mirror / Atom feed
* [binutils-gdb] Re: PR16005, avr linker crash on a particular instruction sequence with --relax
@ 2022-07-29 13:58 Alan Modra
0 siblings, 0 replies; only message in thread
From: Alan Modra @ 2022-07-29 13:58 UTC (permalink / raw)
To: bfd-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=10948fb9fd66c029d59c97e04556ab827076336c
commit 10948fb9fd66c029d59c97e04556ab827076336c
Author: Alan Modra <amodra@gmail.com>
Date: Fri Jul 29 22:35:13 2022 +0930
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.
Diff:
---
bfd/elf32-avr.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/bfd/elf32-avr.c b/bfd/elf32-avr.c
index 3a1d238e707..8c003d0553b 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,
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2022-07-29 13:58 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-29 13:58 [binutils-gdb] Re: PR16005, avr linker crash on a particular instruction sequence with --relax Alan Modra
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).