patches/uClibc/0.9.30/110-arm_fix_alignment.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Oct 03 18:49:23 2009 +0200 (2009-10-03)
changeset 1560 79a609170a83
permissions -rw-r--r--
configure: split has_or_abort in two: one to check, one to abort

Split the has_or_abort function in two:
- one that checks if the tool if found,
- one that calls the above check, and aborts if not found

The rational behind this is to be able to check for a tool
and if not found, fallback to using our bundled version,
should the need arise (and I get time).
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Original patch from Gentoo.
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-= BEGIN original header =-
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ARMV5 can use STRD and LDRD access instructions but these accesses need to be 
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8 byte aligned. The dynamic linker's malloc needs to match this so structures
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become 8 byte aligned to void unaligned accesses.
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RP - 14/02/2008
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-= END original header =-
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diff -durN uClibc-0.9.30.orig/ldso/ldso/arm/dl-sysdep.h uClibc-0.9.30/ldso/ldso/arm/dl-sysdep.h
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--- uClibc-0.9.30.orig/ldso/ldso/arm/dl-sysdep.h	2008-09-25 10:35:20.000000000 +0200
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+++ uClibc-0.9.30/ldso/ldso/arm/dl-sysdep.h	2009-02-07 09:57:59.000000000 +0100
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@@ -15,6 +15,8 @@
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   GOT_BASE[1] = (unsigned long) MODULE; \
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 }
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+#define DL_MALLOC_ALIGN 8  /* EABI needs 8 byte alignment for STRD LDRD*/
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+
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 static __inline__ unsigned long arm_modulus(unsigned long m, unsigned long p)
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 {
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 	unsigned long i,t,inc;