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[Bug ld/5604] ld crash during eh-frame parsing

From: amodra at bigpond dot net dot au
Subject: [Bug ld/5604] ld crash during eh-frame parsing
Date: 14 Jan 2008 07:48:55 -0000

------- Additional Comments From amodra at bigpond dot net dot au  2008-01-14 
07:48 -------
The primary problem is that gc_mark_hook is now being called much later in the
link process.  The powerpc64 gc_mark_hook uses info set up by check_relocs,
_ppc64_elf_section_data.u.opd_func_sec, which is overwritten by
ppc64_elf_edit_opd before bfd_elf_discard_info is called.

A secondary problem is that the powerpc64 gc_mark_hook contains a hack to fire
off a gc-sections mark starting from the entry point code section rather than
the entry point opd section as done by the generic code.  This means a lot of
unnecessary work for the elf-eh-frame.c _bfd_elf_gc_mark_rsec.



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