glibc-2.3.6-allow-gcc-4.0-elf.patch

linux下编译交叉工具链的工具源码

From http://www.mail-archive.com/[e-mail]/msg00229.html
Fixes
  rtld.c: In function '_dl_start':
  dynamic-link.h:47: error: nested function 'elf_machine_rela_relative' declared but never defined
  dynamic-link.h:41: error: nested function 'elf_machine_rela' declared but never defined
when compiling glibc-2.3.4 with gcc-4.0

But see also
http://sources.redhat.com/ml/libc-hacker/2005-02/msg00000.html
and
http://sources.redhat.com/ml/libc-hacker/2005-03/msg00008.html
which seem to propose less radical fixes?

Aha.  See also http://sources.redhat.com/bugzilla/show_bug.cgi?id=721

--- glibc-2.3.6.orig/elf/dynamic-link.h	2005-03-12 18:12:37.000000000 -0800
+++ glibc-2.3.6/elf/dynamic-link.h	2005-03-12 18:12:59.777820848 -0800
@@ -19,47 +19,6 @@
 
 #include <elf.h>
 #include <assert.h>
-
-#ifdef RESOLVE
-/* We pass reloc_addr as a pointer to void, as opposed to a pointer to
-   ElfW(Addr), because not all architectures can assume that the
-   relocated address is properly aligned, whereas the compiler is
-   entitled to assume that a pointer to a type is properly aligned for
-   the type.  Even if we cast the pointer back to some other type with
-   less strict alignment requirements, the compiler might still
-   remember that the pointer was originally more aligned, thereby
-   optimizing away alignment tests or using word instructions for
-   copying memory, breaking the very code written to handle the
-   unaligned cases.  */
-# if ! ELF_MACHINE_NO_REL
-auto inline void __attribute__((always_inline))
-elf_machine_rel (struct link_map *map, const ElfW(Rel) *reloc,
-		 const ElfW(Sym) *sym, const struct r_found_version *version,
-		 void *const reloc_addr);
-auto inline void __attribute__((always_inline))
-elf_machine_rel_relative (ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
-			  void *const reloc_addr);
-# endif
-# if ! ELF_MACHINE_NO_RELA
-auto inline void __attribute__((always_inline))
-elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
-		  const ElfW(Sym) *sym, const struct r_found_version *version,
-		  void *const reloc_addr);
-auto inline void __attribute__((always_inline))
-elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
-			   void *const reloc_addr);
-# endif
-# if ELF_MACHINE_NO_RELA || defined ELF_MACHINE_PLT_REL
-auto inline void __attribute__((always_inline))
-elf_machine_lazy_rel (struct link_map *map,
-		      ElfW(Addr) l_addr, const ElfW(Rel) *reloc);
-# else
-auto inline void __attribute__((always_inline))
-elf_machine_lazy_rel (struct link_map *map,
-		      ElfW(Addr) l_addr, const ElfW(Rela) *reloc);
-# endif
-#endif
-
 #include <dl-machine.h>
 
 #ifndef VERSYMIDX

Signed-off-by: Robert P. J. Day <[e-mail]>