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Removing old elf/maps parsing fixes from libunwind

Hi,

Since we aren't using these code path anymore I removed these patches
from our libunwind copy. They are not wrong though. We just don't use
them anymore and they make the diff between our version and upstream a
little messy.

frysk-imports/libunwind/ChangeLog
2007-01-25  Mark Wielaard  <mwielaard@redhat.com>
    
        Revert:
        2006-09-20  Alexandre Oliva  <aoliva@redhat.com>
    
        * src/os-linux.h (maps_next): Don't error out just because
        path is missing.
        * include/tdep-hppa/libunwind_i.h (tdep_get_elf_image): Add as
        and arg to the parameter list.
        * include/tdep-ia64/libunwind_i.h (tdep_get_elf_image): Ditto.
        * include/tdep-ppc64/libunwind_i.h (tdep_get_elf_image): Ditto.
        * include/tdep-x86/libunwind_i.h (tdep_get_elf_image): Ditto.
        * include/tdep-x86_64/libunwind_i.h (tdep_get_elf_image): Ditto.
        * src/elfxx.h (get_proc_name): Ditto.
        * src/elfxx.c (get_proc_name): Ditto.  Adjust.
        * src/hppa/Ginit.c (get_static_proc_name): Adjust.
        * src/ia64/Ginit.c (get_static_proc_name): Ditto.
        * src/ppc64/Ginit.c (get_static_proc_name): Ditto.
        * src/x86/Ginit.c (get_static_proc_name): Ditto.
        * src/x86_64/Ginit.c (get_static_proc_name): Ditto.
        * src/ptrace/_UPT_find_proc_info.c (get_unwind_info): Ditto.
        * src/ptrace/_UPT_get_proc_name.c (_UPT_get_proc_name): Ditto.
        * src/os-hpux.c (tdep_get_elf_image): Ditto.
        * src/os-linux.c (tdep_get_elf_image): Ditto.  Read in 1-page
        segments that start with the ELF magic.
        (MAX_VDSO_SIZE): New.
    
        2007-04-25  Nurdin Premji  <npremji@redhat.com>
    
        * src/elfxx.h (elf_map_image): map image using MAP_32BIT to
        avoid address truncation issues in cross-platform unwinding.
        * src/os-linux.h: (tdep_get_elf_image) Ditto for VDSO section.
        * src/ptrace/_UPT_find_proc_info.c (_UPTi_find_unwind_table):
        Added dummy local address space for cross-platform unwinding.

I'll post the original patches for upstream consideration.

Cheers,

Mark
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