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[PATCH] s390x/BFD: Don't crash on discarded GOT
- From: "Maciej W. Rozycki" <macro at linux-mips dot org>
- To: binutils at sourceware dot org
- Cc: nick clifton <nickc at redhat dot com>, Martin Schwidefsky <schwidefsky at de dot ibm dot com>
- Date: Sat, 27 Jul 2013 23:50:54 +0100 (BST)
- Subject: [PATCH] s390x/BFD: Don't crash on discarded GOT
- References: <alpine dot LFD dot 2 dot 03 dot 1305200339380 dot 10753 at linux-mips dot org> <51B207B2 dot 30702 at redhat dot com> <alpine dot LFD dot 2 dot 03 dot 1307272329140 dot 3015 at linux-mips dot org>
Hi,
This change fixes a linker crash where GOT is produced but not copied to
output, e.g. because of the .got.plt input section being discarded through
the /DISCARD/ linker script keyword -- not a particularly useful use case,
but the linker shouldn't crash regardless.
OK to apply?
2013-07-27 Maciej W. Rozycki <macro@linux-mips.org>
bfd/
* elf64-s390.c (elf_s390_finish_dynamic_sections): Don't set GOT's
entry size if there is no ELF section data.
Maciej
binutils-2.23.52-20130506-s390x-finish-dynamic.patch
Index: binutils/bfd/elf64-s390.c
===================================================================
--- binutils.orig/bfd/elf64-s390.c
+++ binutils/bfd/elf64-s390.c
@@ -3619,8 +3619,9 @@ elf_s390_finish_dynamic_sections (bfd *o
- htab->elf.splt->output_section->vma - 6)/2,
htab->elf.splt->contents + 8);
}
- elf_section_data (htab->elf.splt->output_section)
- ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
+ if (elf_section_data (htab->elf.splt->output_section) != NULL)
+ elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize
+ = PLT_ENTRY_SIZE;
}
if (htab->elf.sgotplt)