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patches/glibc/2.3.6/180-allow-gcc-4.0-elf.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jan 17 23:06:02 2010 +0100 (2010-01-17)
changeset 1740 c57458bb354d
parent 402 197e1b49586e
permissions -rw-r--r--
configure: do not require hg when configuring in an hg clone

When configuring in an hg clone, we need hg to compute the version string.
It can happen that users do not have Mercurial (eg. if they got a snapshot
rather that they did a full clone). In this case, we can still run, of
course, so simply fill the version string with a sufficiently explicit
value, that does not require hg. The date is a good candidate. 
     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

    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>
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