patches/glibc/2.12.2/900-march-i686.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Thu Jul 28 22:09:31 2011 +0200 (2011-07-28)
changeset 2573 424fa2092ace
permissions -rw-r--r--
scripts/libc: do not build add-ons by default

Currently, no --enable-add-ons option is passed to libc configure when
"$(do_libc_add_ons_list ,)" is empty, which makes configure automatically search
for present add-ons. In that case, all present add-ons are built, although
no add-on was selected by the user in the config. Moreover, this can make the
configure fail if some non-standard add-ons like eglibc-localedef are present.

This behavior also leads to an inconsistency from a user point of view between
the following cases:
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS="none" in the config,
which makes "$(do_libc_add_ons_list ,)" return "", so all present add-ons
are built.
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS!="none" in the
config, which makes "$(do_libc_add_ons_list ,)" return the add-on supporting
the chosen threading implementation, e.g. "nptl", so only this add-on is
built.

This patch disables the building of all add-ons in that case.

It is still possible to build all present add-ons by adding --enable-add-ons to
LIBC_GLIBC_EXTRA_CONFIG_ARRAY.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
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2007-02-15  Khem Raj  <kraj@xxxxxxxxxx>
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       * sysdeps/unix/sysv/linux/i386/sysdep.h: Re-define __i686.
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       * nptl/sysdeps/pthread/pt-initfini.c: Ditto.
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diff -urN glibc-2.12.2.orig/nptl/sysdeps/pthread/pt-initfini.c glibc-2.12.2/nptl/sysdeps/pthread/pt-initfini.c
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--- glibc-2.12.2.orig/nptl/sysdeps/pthread/pt-initfini.c	2009-10-30 18:17:08.000000000 +0100
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+++ glibc-2.12.2/nptl/sysdeps/pthread/pt-initfini.c	2010-12-30 11:36:19.858708534 +0100
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@@ -45,6 +45,11 @@
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 /* Embed an #include to pull in the alignment and .end directives. */
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 asm ("\n#include \"defs.h\"");
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+asm ("\n#if defined __i686 && defined __ASSEMBLER__");
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+asm ("\n#undef __i686");
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+asm ("\n#define __i686 __i686");
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+asm ("\n#endif");
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+
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 /* The initial common code ends here. */
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 asm ("\n/*@HEADER_ENDS*/");
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diff -urN glibc-2.12.2.orig/sysdeps/unix/sysv/linux/i386/sysdep.h glibc-2.12.2/sysdeps/unix/sysv/linux/i386/sysdep.h
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--- glibc-2.12.2.orig/sysdeps/unix/sysv/linux/i386/sysdep.h	2009-10-30 18:17:08.000000000 +0100
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+++ glibc-2.12.2/sysdeps/unix/sysv/linux/i386/sysdep.h	2010-12-30 11:36:19.858708534 +0100
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@@ -29,6 +29,10 @@
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 #include <dl-sysdep.h>
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 #include <tls.h>
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+#if defined __i686 && defined __ASSEMBLER__
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+#undef __i686
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+#define __i686 __i686
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+#endif
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 /* For Linux we can use the system call table in the header file
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 	/usr/include/asm/unistd.h