patches/uClibc/0.9.30.2/110-arm_fix_alignment.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Nov 23 21:35:28 2010 +0100 (2010-11-23)
branch1.9
changeset 2198 6d909657dbdf
permissions -rw-r--r--
scripts/xldd: better find sysroot with old gcc

Only starting with 4.4 does gcc have a -print-sysroot option.
For 4.3 or before, we have to play some tricks:
- ask gcc where libc.so is,
(we expect it in ${sysroot}/usr/lib/libc.so)
- trim /usr/lib/libc.so from the result

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from aa2305c5b2a57fbcda9a1b5bb5fb3a476ac49a13)
     1 Original patch from Gentoo.
     2 
     3 -= BEGIN original header =-
     4 ARMV5 can use STRD and LDRD access instructions but these accesses need to be 
     5 8 byte aligned. The dynamic linker's malloc needs to match this so structures
     6 become 8 byte aligned to void unaligned accesses.
     7 
     8 RP - 14/02/2008
     9 
    10 -= END original header =-
    11 
    12 Modified slightly for uClibc-0.9.30.2 by Joachim Nilsson <jocke@vmlinux.org>
    13 
    14 diff -durN uClibc-0.9.30.orig/ldso/ldso/arm/dl-sysdep.h uClibc-0.9.30/ldso/ldso/arm/dl-sysdep.h
    15 --- uClibc-0.9.30.orig/ldso/ldso/arm/dl-sysdep.h	2008-09-25 10:35:20.000000000 +0200
    16 +++ uClibc-0.9.30/ldso/ldso/arm/dl-sysdep.h	2009-02-07 09:57:59.000000000 +0100
    17 @@ -15,6 +15,8 @@
    18    GOT_BASE[1] = (unsigned long) MODULE; \
    19  }
    20  
    21 +#define DL_MALLOC_ALIGN 8  /* EABI needs 8 byte alignment for STRD LDRD*/
    22 +
    23  static __always_inline unsigned long arm_modulus(unsigned long m, unsigned long p)
    24  {
    25  	unsigned long i,t,inc;