patches/gcc/4.3.2/330-unwind-for-uClibc.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jan 31 17:49:27 2009 +0000 (2009-01-31)
changeset 1183 268544004e77
parent 766 717efd8b78b4
permissions -rw-r--r--
On 20090131.1659+0100, Vincent Sanders <vince@kyllikki.org> wrote:
[This]patch is a bit more involved. The patch addresses a gcc
regression in the 4.3 series (specifically this patch is against 4.3.2
which does *not* have a lot of other issues which affect kernel building)

GCC bug tracker has this issue as
#38453 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38453
#32044 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32044

comment 65 of #32044 has the fix being applied to gcc trunk as revision #142719

The attached patch is a backport to gcc 4.3.2 which allows this
version to be used to generate correct output for various ARM kernel
build (and indeed is teh correct answer in general).

/trunk/patches/gcc/4.3.2/360-fix-expensive-optimize.patch | 207 207 0 0 +++++++++++++++++++++
1 file changed, 207 insertions(+)
     1 diff -durN gcc-4.3.1.orig/gcc/config/t-linux-uclibc gcc-4.3.1/gcc/config/t-linux-uclibc
     2 --- gcc-4.3.1.orig/gcc/config/t-linux-uclibc	1970-01-01 01:00:00.000000000 +0100
     3 +++ gcc-4.3.1/gcc/config/t-linux-uclibc	2008-07-29 13:07:15.000000000 +0200
     4 @@ -0,0 +1,5 @@
     5 +# Remove glibc specific files added in t-linux
     6 +SHLIB_MAPFILES := $(filter-out $(srcdir)/config/libgcc-glibc.ver, $(SHLIB_MAPFILES))
     7 +
     8 +# Use unwind-dw2-fde instead of unwind-dw2-fde-glibc
     9 +LIB2ADDEH := $(subst unwind-dw2-fde-glibc.c,unwind-dw2-fde.c,$(LIB2ADDEH))
    10 diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc
    11 --- gcc-4.3.1.orig/gcc/config.gcc	2008-07-29 13:11:02.000000000 +0200
    12 +++ gcc-4.3.1/gcc/config.gcc	2008-07-29 13:10:05.000000000 +0200
    13 @@ -2651,6 +2651,12 @@
    14  	;;
    15  esac
    16  
    17 +# Rather than hook into each target, just do it after all the linux
    18 +# targets have been processed
    19 +case ${target} in
    20 +  *-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC" ; tmake_file="${tmake_file} t-linux-uclibc";;
    21 +esac
    22 +
    23  case ${target} in
    24  i[34567]86-*-linux*aout* | i[34567]86-*-linux*libc1)
    25  	tmake_file="${tmake_file} i386/t-gmm_malloc"