patches/glibc/2.5.1/130-glibc-2.3.6-allow-gcc-4.0-elf.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Feb 17 22:08:06 2008 +0000 (2008-02-17)
changeset 431 8bde4c6ea47a
permissions -rw-r--r--
Robert P. J. DAY says:

apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3. so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories. seems like a
cheap way to add a couple new versions.
     1 From http://www.mail-archive.com/pld-cvs-commit@pld-linux.org/msg00229.html
     2 Fixes
     3   rtld.c: In function '_dl_start':
     4   dynamic-link.h:47: error: nested function 'elf_machine_rela_relative' declared but never defined
     5   dynamic-link.h:41: error: nested function 'elf_machine_rela' declared but never defined
     6 when compiling glibc-2.3.4 with gcc-4.0
     7 
     8 But see also
     9 http://sources.redhat.com/ml/libc-hacker/2005-02/msg00000.html
    10 and
    11 http://sources.redhat.com/ml/libc-hacker/2005-03/msg00008.html
    12 which seem to propose less radical fixes?
    13 
    14 Aha.  See also http://sources.redhat.com/bugzilla/show_bug.cgi?id=721
    15 
    16 --- glibc-2.3.6.orig/elf/dynamic-link.h	2005-03-12 18:12:37.000000000 -0800
    17 +++ glibc-2.3.6/elf/dynamic-link.h	2005-03-12 18:12:59.777820848 -0800
    18 @@ -19,47 +19,6 @@
    19  
    20  #include <elf.h>
    21  #include <assert.h>
    22 -
    23 -#ifdef RESOLVE_MAP
    24 -/* We pass reloc_addr as a pointer to void, as opposed to a pointer to
    25 -   ElfW(Addr), because not all architectures can assume that the
    26 -   relocated address is properly aligned, whereas the compiler is
    27 -   entitled to assume that a pointer to a type is properly aligned for
    28 -   the type.  Even if we cast the pointer back to some other type with
    29 -   less strict alignment requirements, the compiler might still
    30 -   remember that the pointer was originally more aligned, thereby
    31 -   optimizing away alignment tests or using word instructions for
    32 -   copying memory, breaking the very code written to handle the
    33 -   unaligned cases.  */
    34 -# if ! ELF_MACHINE_NO_REL
    35 -auto inline void __attribute__((always_inline))
    36 -elf_machine_rel (struct link_map *map, const ElfW(Rel) *reloc,
    37 -		 const ElfW(Sym) *sym, const struct r_found_version *version,
    38 -		 void *const reloc_addr);
    39 -auto inline void __attribute__((always_inline))
    40 -elf_machine_rel_relative (ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
    41 -			  void *const reloc_addr);
    42 -# endif
    43 -# if ! ELF_MACHINE_NO_RELA
    44 -auto inline void __attribute__((always_inline))
    45 -elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
    46 -		  const ElfW(Sym) *sym, const struct r_found_version *version,
    47 -		  void *const reloc_addr);
    48 -auto inline void __attribute__((always_inline))
    49 -elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
    50 -			   void *const reloc_addr);
    51 -# endif
    52 -# if ELF_MACHINE_NO_RELA || defined ELF_MACHINE_PLT_REL
    53 -auto inline void __attribute__((always_inline))
    54 -elf_machine_lazy_rel (struct link_map *map,
    55 -		      ElfW(Addr) l_addr, const ElfW(Rel) *reloc);
    56 -# else
    57 -auto inline void __attribute__((always_inline))
    58 -elf_machine_lazy_rel (struct link_map *map,
    59 -		      ElfW(Addr) l_addr, const ElfW(Rela) *reloc);
    60 -# endif
    61 -#endif
    62 -
    63  #include <dl-machine.h>
    64  
    65  #ifndef VERSYMIDX
    66 
    67 Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>