summaryrefslogtreecommitdiff
path: root/patches/glibc/2_9/350-2.4-undefine-__i686.patch
blob: 583a48811dcf21979adffc73a7955f1ec94c0171 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Original patch from: gentoo/src/patchsets/glibc/2.9/1130_all_glibc-2.4-undefine-__i686.patch

-= BEGIN original header =-
If gcc is configured to generate i686 code or better by default (like 
when using the --with-arch=pentium3 configure option), then the __i686
macro will always be defined automatically and thus screw up the
compilation of some .S files.
http://bugs.gentoo.org/131108
http://sourceware.org/ml/libc-alpha/2006-04/msg00090.html

2006-04-25  Mike Frysinger  <vapier@gentoo.org>

	* sysdeps/i386/sysdep.h (__i686): Undefine.

-= END original header =-

diff -durN glibc-2_9.orig/nptl/sysdeps/pthread/pt-initfini.c glibc-2_9/nptl/sysdeps/pthread/pt-initfini.c
--- glibc-2_9.orig/nptl/sysdeps/pthread/pt-initfini.c	2007-06-17 20:02:01.000000000 +0200
+++ glibc-2_9/nptl/sysdeps/pthread/pt-initfini.c	2009-02-02 22:01:09.000000000 +0100
@@ -45,6 +45,9 @@
 /* Embed an #include to pull in the alignment and .end directives. */
 asm ("\n#include \"defs.h\"");
 
+/* Embed an #include to pull in asm settings. */
+asm ("\n#ifdef __i686__\n#include <sysdep.h>\n#endif");
+
 /* The initial common code ends here. */
 asm ("\n/*@HEADER_ENDS*/");
 
diff -durN glibc-2_9.orig/sysdeps/i386/sysdep.h glibc-2_9/sysdeps/i386/sysdep.h
--- glibc-2_9.orig/sysdeps/i386/sysdep.h	2006-10-28 08:44:03.000000000 +0200
+++ glibc-2_9/sysdeps/i386/sysdep.h	2009-02-02 22:01:09.000000000 +0100
@@ -18,6 +18,14 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+/*
+ * When building for i686 targets or better, gcc automatically defines
+ * '__i686' to '1' for us which causes trouble when using section names
+ * like '__i686.get_pc_thunk.reg'.  Since we check for __i686__ in the
+ * code, killing '__i686' shouldn't be a problem.
+ */
+#undef __i686
+
 #include <sysdeps/generic/sysdep.h>
 
 #ifdef	__ASSEMBLER__