crosstool-ng: patches/gcc/4.2.4/290-alpha-signal

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 --- gcc-4.2.1-stock/gcc/config/alpha/linux-unwind.h	2005-06-24 20:22:41.000000000 -0500

     2 +++ gcc-4.2.1/gcc/config/alpha/linux-unwind.h	2007-09-01 20:21:34.000000000 -0500

     3 @@ -29,6 +29,9 @@ Boston, MA 02110-1301, USA.  */

     4  /* Do code reading to identify a signal frame, and set the frame

     5     state data appropriately.  See unwind-dw2.c for the structs.  */

     7 +/* Don't use this if inhibit_libc is set

     8 +   The build for this target will fail trying to include missing headers */

     9 +#ifndef inhibit_libc

    10  #include <signal.h>

    11  #include <sys/ucontext.h>

    13 @@ -80,3 +83,4 @@ alpha_fallback_frame_state (struct _Unwi

    14    fs->retaddr_column = 64;

    15    return _URC_NO_REASON;

    16  }

    17 +#endif /* inhibit_libc */

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Mon Feb 21 23:39:46 2011 +0100 (2011-02-21)
changeset 2312	8b9938edd3d8
parent 746	b150d6f590fc
permissions	-rw-r--r--