patches/glibc/2.5.1/130-i686-assembler.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Oct 14 17:42:10 2008 +0000 (2008-10-14)
changeset 929 7c958fb04f28
parent 744 4bf8448536d5
permissions -rw-r--r--
Sample config for e500v2 toolchain

On Tuesday 14 October 2008 17:05:31 Nate Case wrote:
> This is a sample config file for Freescale e500v2 processors (e.g.,
> MPC8548, MPC8572). It uses eglibc (for e500/SPE patches) and a recent
> gcc (4.3.1, for e500v2 DPFP support) and will generate appropriate
> dual-precision floating point instructions by default.
>
> Note: If building a Linux kernel with this toolchain, you will want to
> make sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE
> ABI/instructions from getting into the kernel (which is currently
> unsupported). At this time, the kernel build system only passes
> -mno-spe by default (this should be fixed soon hopefully).
>
> A binutils snapshot is used to fix a bug present in 2.18 preventing
> U-Boot from being compiled (CodeSourcery issue #2297: internal.h
> (ELF_IS_SECTION_IN_SEGMENT): Adjust to cope with segments at the end of
> memory).

Obsoletes the powerpc-unknown-linux-gnuspe sample, so remove it.

/trunk/samples/powerpc-e500v2-linux-gnuspe/crosstool.config | 307 307 0 0 +++++++++++++++++++
1 file changed, 307 insertions(+)
yann@402
     1
2007-02-15  Khem Raj  <kraj@xxxxxxxxxx>
yann@402
     2
yann@402
     3
       * sysdeps/unix/sysv/linux/i386/sysdep.h: Re-define __i686.
yann@402
     4
       * nptl/sysdeps/pthread/pt-initfini.c: Ditto.
yann@402
     5
yann@402
     6
yann@402
     7
yann@402
     8
Index: glibc-2.4/sysdeps/unix/sysv/linux/i386/sysdep.h
yann@402
     9
===================================================================
yann@402
    10
--- glibc-2.4/sysdeps/unix/sysv/linux/i386/sysdep.h	(revision 1469)
yann@402
    11
+++ glibc-2.4/sysdeps/unix/sysv/linux/i386/sysdep.h	(working copy)
yann@402
    12
@@ -29,6 +29,10 @@
yann@402
    13
 #include <dl-sysdep.h>
yann@402
    14
 #include <tls.h>
yann@402
    15
 
yann@402
    16
+#if defined __i686 && defined __ASSEMBLER__
yann@402
    17
+#undef __i686
yann@402
    18
+#define __i686 __i686
yann@402
    19
+#endif
yann@402
    20
 
yann@402
    21
 /* For Linux we can use the system call table in the header file
yann@402
    22
 	/usr/include/asm/unistd.h
yann@402
    23
Index: glibc-2.4/nptl/sysdeps/pthread/pt-initfini.c
yann@402
    24
===================================================================
yann@402
    25
--- glibc-2.4/nptl/sysdeps/pthread/pt-initfini.c	(revision 1469)
yann@402
    26
+++ glibc-2.4/nptl/sysdeps/pthread/pt-initfini.c	(working copy)
yann@402
    27
@@ -45,6 +45,11 @@
yann@402
    28
 /* Embed an #include to pull in the alignment and .end directives. */
yann@402
    29
 asm ("\n#include \"defs.h\"");
yann@402
    30
 
yann@402
    31
+asm ("\n#if defined __i686 && defined __ASSEMBLER__");
yann@402
    32
+asm ("\n#undef __i686");
yann@402
    33
+asm ("\n#define __i686 __i686");
yann@402
    34
+asm ("\n#endif");
yann@402
    35
+
yann@402
    36
 /* The initial common code ends here. */
yann@402
    37
 asm ("\n/*@HEADER_ENDS*/");
yann@402
    38