patches/gcc/4.4.5/100-alpha-mieee-default.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04)
changeset 3271 c65dc9b98841
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>
yann@2149
     1
diff -durN gcc-4.4.5.orig/gcc/config/alpha/alpha.h gcc-4.4.5/gcc/config/alpha/alpha.h
yann@2149
     2
--- gcc-4.4.5.orig/gcc/config/alpha/alpha.h	2009-02-20 16:20:38.000000000 +0100
yann@2149
     3
+++ gcc-4.4.5/gcc/config/alpha/alpha.h	2010-10-09 22:57:31.000000000 +0200
yann@2149
     4
@@ -95,6 +95,8 @@
yann@2149
     5
   while (0)
yann@2149
     6
 #endif
yann@2149
     7
 
yann@2149
     8
+#define CPP_SPEC "%{!no-ieee:-mieee}"
yann@2149
     9
+
yann@2149
    10
 #define WORD_SWITCH_TAKES_ARG(STR)		\
yann@2149
    11
  (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))
yann@2149
    12
 
yann@2149
    13
diff -durN gcc-4.4.5.orig/gcc/config/alpha/alpha.opt gcc-4.4.5/gcc/config/alpha/alpha.opt
yann@2149
    14
--- gcc-4.4.5.orig/gcc/config/alpha/alpha.opt	2007-08-02 12:49:31.000000000 +0200
yann@2149
    15
+++ gcc-4.4.5/gcc/config/alpha/alpha.opt	2010-10-09 22:57:31.000000000 +0200
yann@2149
    16
@@ -39,7 +39,7 @@
yann@2149
    17
 Request IEEE-conformant math library routines (OSF/1)
yann@2149
    18
 
yann@2149
    19
 mieee
yann@2149
    20
-Target Report RejectNegative Mask(IEEE)
yann@2149
    21
+Target Report Mask(IEEE)
yann@2149
    22
 Emit IEEE-conformant code, without inexact exceptions
yann@2149
    23
 
yann@2149
    24
 mieee-with-inexact