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patches/gcc/4.3.1/330-unwind-for-uClibc.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Feb 21 23:39:46 2011 +0100 (2011-02-21)
changeset 2312 8b9938edd3d8
permissions -rw-r--r--
libc/glibc: add fortify option

By default, recent versions of glibc and eglibc will build some
functions that take format strings (eg. printf, syslog...) with
run-time checks against some format string attacks. This is
called a fortified build.

Unfortunately, this fails somehow while building the instrumented
version of syslog, with some kind of circular dependency...

Disable fortified builds by default, and hide the enabling option
behind EXPERIMENTAL for daring users...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     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"
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