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* config.h.in (USE_MULTIARCH): Define.

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* configure.in: Handle --enable-multi-arch.
	* elf/dl-runtime.c (_dl_fixup): Handle STT_GNU_IFUNC.
	(_dl_fixup_profile): Likewise.
	* elf/do-lookup.c (dl_lookup_x): Likewise.
	* sysdeps/x86_64/dl-machine.h: Handle STT_GNU_IFUNC.
	* elf/elf.h (STT_GNU_IFUNC): Define.
	* include/libc-symbols.h (libc_ifunc): Define.
	* sysdeps/x86_64/cacheinfo.c: If USE_MULTIARCH is defined, use the
	framework in init-arch.h to get CPUID values.
	* sysdeps/x86_64/multiarch/Makefile: New file.
	* sysdeps/x86_64/multiarch/init-arch.c: New file.
	* sysdeps/x86_64/multiarch/init-arch.h: New file.
	* sysdeps/x86_64/multiarch/sched_cpucount.c: New file.

	* config.make.in (experimental-malloc): Define.
	* configure.in: Handle --enable-experimental-malloc.
	* malloc/Makefile: Handle experimental-malloc flag.
	* malloc/malloc.c: Implement PER_THREAD and ATOMIC_FASTBINS features.
	* malloc/arena.c: Likewise.
	* malloc/hooks.c: Likewise.
	* malloc/malloc.h: Define M_ARENA_TEST and M_ARENA_MAX.
This commit is contained in:
Ulrich Drepper
2009-03-13 23:53:18 +00:00
parent e7f110cdbd
commit 425ce2edb9
20 changed files with 813 additions and 75 deletions
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14
include/libc-symbols.h
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@@ -1,7 +1,6 @@
/* Support macros for making weak and strong aliases for symbols,
and for using symbol sets and linker warnings with GNU ld.
Copyright (C) 1995-1998,2000-2003,2004,2005,2006
Free Software Foundation, Inc.
Copyright (C) 1995-1998, 2000-2006, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -835,4 +834,15 @@ for linking")
# define compat_data_section .section ".data.compat", "aw";
#endif
/* Marker used for indirection function symbols. */
#define libc_ifunc(name, expr) \
extern void *name##_ifunc (void) __asm__ (#name); \
void *name##_ifunc (void) \
{ \
INIT_ARCH (); \
__typeof (name) *res = expr; \
return res; \
} \
__asm__ (".type " #name ", %gnu_indirect_function");
#endif /* libc-symbols.h */