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patches/gcc/4.1.2/110-arm-eabi.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04)
changeset 3271 c65dc9b98841
parent 1 eeea35fbf182
permissions -rw-r--r--
cc/gcc: diable libsanitizer without NPTL

gcc-4.8 comes with a new library to sanitise memory access:
- heap-, stack-, and global-buffer overflow, use-after-free
- data-races between threads

This library requires some _np parts of the API, which are not
implemented in the (old) LinuxThreads, which is still available
in uClibc.

Since NPTL requires a i486 or above, i386 are stuck with using LT,
which precludes building the libsanitizer.

Disable libsanitizer, a bit like libatomic is.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Niels Penneman <niels@penneman.org> 
     1 --- gcc-4.1.2.orig/gcc/config.gcc	2007-03-04 23:25:37.000000000 +0100

     2 +++ gcc-4.1.2/gcc/config.gcc	2007-03-04 23:25:45.000000000 +0100

     3 @@ -674,7 +674,7 @@

     4  	tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h" 

     5  	tmake_file="${tmake_file} t-linux arm/t-arm"

     6  	case ${target} in

     7 -	arm*-*-linux-gnueabi)

     8 +	arm*-*-linux-gnueabi | arm*-*-linux-uclibcgnueabi)

     9  	    tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h"

    10  	    tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi"

    11    	    # The BPABI long long divmod functions return a 128-bit value in 

    12 --- gcc-4.1.2.orig/gcc/config/arm/linux-eabi.h	2005-11-15 15:32:13.000000000 +0100

    13 +++ gcc-4.1.2/gcc/config/arm/linux-eabi.h	2007-03-04 23:25:45.000000000 +0100

    14 @@ -53,7 +53,11 @@

    15  /* Use ld-linux.so.3 so that it will be possible to run "classic"

    16     GNU/Linux binaries on an EABI system.  */

    17  #undef LINUX_TARGET_INTERPRETER

    18 +#ifdef USE_UCLIBC

    19 +#define LINUX_TARGET_INTERPRETER "/lib/ld-uClibc.so.0"

    20 +#else

    21  #define LINUX_TARGET_INTERPRETER "/lib/ld-linux.so.3"

    22 +#endif

    23  

    24  /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to

    25     use the GNU/Linux version, not the generic BPABI version.  */
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