patches/gcc/4.3.4/390-unbreak-armv4t.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Sep 09 00:02:01 2009 +0200 (2009-09-09)
changeset 1525 4647e6fb994a
permissions -rw-r--r--
gcc: add patch to fix EABI for armv4t

As pointed out by Martin GUY, gcc incorrectly generates armv5t
instrcutions for EABI, even for cores that are an armv4t.
The new patch (for the 4.3 series) fixes the problem by downgrading
the default CPU for EABI to being an armv4t core.
yann@1525
     1
--- gcc-4.3.2.orig/gcc/config/arm/linux-eabi.h	2009-09-08 23:46:44.000000000 +0200
yann@1525
     2
+++ gcc-4.3.2/gcc/config/arm/linux-eabi.h	2009-09-08 23:46:51.000000000 +0200
yann@1525
     3
@@ -44,7 +44,7 @@
yann@1525
     4
    The ARM10TDMI core is the default for armv5t, so set
yann@1525
     5
    SUBTARGET_CPU_DEFAULT to achieve this.  */
yann@1525
     6
 #undef  SUBTARGET_CPU_DEFAULT
yann@1525
     7
-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
yann@1525
     8
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
yann@1525
     9
 
yann@1525
    10
 /* TARGET_BIG_ENDIAN_DEFAULT is set in
yann@1525
    11
    config.gcc for big endian configurations.  */