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[Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access
From: |
siarhei.siamashka at gmail dot com |
Subject: |
[Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access |
Date: |
Sun, 14 Oct 2012 20:57:41 +0000 |
http://sourceware.org/bugzilla/show_bug.cgi?id=14718
Siarhei Siamashka <siarhei.siamashka at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |siarhei.siamashka at gmail
| |dot com
--- Comment #5 from Siarhei Siamashka <siarhei.siamashka at gmail dot com>
2012-10-14 20:57:41 UTC ---
Or maybe changing the order like this:
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index 633bb64..0efcf1d 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -3061,12 +3061,12 @@ elf32_arm_allocate_local_sym_info (bfd *abfd)
elf_local_got_refcounts (abfd) = (bfd_signed_vma *) data;
data += num_syms * sizeof (bfd_signed_vma);
- elf32_arm_local_iplt (abfd) = (struct arm_local_iplt_info **) data;
- data += num_syms * sizeof (struct arm_local_iplt_info *);
-
elf32_arm_local_tlsdesc_gotent (abfd) = (bfd_vma *) data;
data += num_syms * sizeof (bfd_vma);
+ elf32_arm_local_iplt (abfd) = (struct arm_local_iplt_info **) data;
+ data += num_syms * sizeof (struct arm_local_iplt_info *);
+
elf32_arm_local_got_tls_type (abfd) = data;
}
return TRUE;
Because in the current code bfd_signed_vma array (64-bit elements) is followed
by arm_local_iplt_info * array (32-bit elements) and then followed by bfd_vma
array (64-bit elements again). If num_syms is odd, then the last array is not
64-bit aligned. Just swapping the order of the second and third arrays might
help.
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- [Bug ld/14718] New: ld crashes on ARMv5 due to unaligned memory access, ambrop7 at gmail dot com, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, address@hidden, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, vapier at gentoo dot org, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, ambrop7 at gmail dot com, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, ambrop7 at gmail dot com, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, address@hidden, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access,
siarhei.siamashka at gmail dot com <=
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, ambrop7 at gmail dot com, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, siarhei.siamashka at gmail dot com, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, ambrop7 at gmail dot com, 2012/10/14
- [Bug ld/14718] ld crashes on ARMv5 due to unaligned memory access, siarhei.siamashka at gmail dot com, 2012/10/14