patches/gcc/4.3.2/230-pr34571.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 747 d3e603e7c17c
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 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/64_all_gcc43-pr34571.patch
     2 http://gcc.gnu.org/PR34571
     3 
     4 2007-12-26  Rask Ingemann Lambertsen  <rask@sygehus.dk>
     5 
     6 	PR target/34571
     7 	* config/alpha/alpha.c (alpha_cannot_force_const_mem): Use
     8 	symbolic_operand.
     9 	* varasm.c (output_constant_pool_1): Fix typo.
    10 
    11 diff -durN gcc-4.3.1.orig/gcc/config/alpha/alpha.c gcc-4.3.1/gcc/config/alpha/alpha.c
    12 --- gcc-4.3.1.orig/gcc/config/alpha/alpha.c	2008-02-07 18:45:24.000000000 +0100
    13 +++ gcc-4.3.1/gcc/config/alpha/alpha.c	2008-06-10 14:58:24.000000000 +0200
    14 @@ -1113,8 +1113,7 @@
    15  static bool
    16  alpha_cannot_force_const_mem (rtx x)
    17  {
    18 -  enum rtx_code code = GET_CODE (x);
    19 -  return code == SYMBOL_REF || code == LABEL_REF || code == CONST;
    20 +  return symbolic_operand (x, GET_MODE (x));
    21  }
    22  
    23  /* We do not allow indirect calls to be optimized into sibling calls, nor
    24 diff -durN gcc-4.3.1.orig/gcc/varasm.c gcc-4.3.1/gcc/varasm.c
    25 --- gcc-4.3.1.orig/gcc/varasm.c	2007-12-05 22:55:10.000000000 +0100
    26 +++ gcc-4.3.1/gcc/varasm.c	2008-06-10 14:58:24.000000000 +0200
    27 @@ -3710,7 +3710,7 @@
    28        /* FALLTHRU  */
    29  
    30      case LABEL_REF:
    31 -      tmp = XEXP (x, 0);
    32 +      tmp = XEXP (tmp, 0);
    33        gcc_assert (!INSN_DELETED_P (tmp));
    34        gcc_assert (!NOTE_P (tmp)
    35  		  || NOTE_KIND (tmp) != NOTE_INSN_DELETED);