[Bug tdep/17521] On Windows-x86_64 GDB runs into infinite loop when entering small functions generated by RUSTC/LLVM

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https://sourceware.org/bugzilla/show_bug.cgi?id=17521

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=36e9d67b868c85232ab630514260f0d9c9c6b27b

commit 36e9d67b868c85232ab630514260f0d9c9c6b27b
Author: Nick Clifton <nickc@redhat.com>
Date:   Mon Nov 10 14:18:45 2014 +0000

    More fixes for problems exposed by valgrind and the address sanitizer
    when displaying the contents of corrupt files.

        PR binutils/17521
        * coff-i386.c (NUM_HOWTOS): New define.
        (RTYPE2HOWTO): Use it.
        (coff_i386_rtype_to_howto): Likewise.
        (coff_i386_reloc_name_lookup): Likewise.
        (CALC_ADDEND): Check that reloc r_type field is valid.
        * coff-x86_64.c (NUM_HOWTOS): New define.
        (RTYPE2HOWTO): Use it.
        (coff_amd64_rtype_to_howto): Likewise.
        (coff_amd64_reloc_name_lookup): Likewise.
        (CALC_ADDEND): Check that reloc r_type field is valid.
        * coffcode.h (coff_slurp_line_table): Check for symbol table
        indexing underflow.
        (coff_slurp_symbol_table): Use zalloc to ensure that all table
        entries are initialised.
        * coffgen.c (_bfd_coff_read_string_table): Initialise unused bits
        in the string table.  Also ensure that the table is 0 terminated.
        (coff_get_normalized_symtab): Check for symbol table indexing
        underflow.
        * opncls.c (bfd_alloc): Catch the case where a small negative size
        can result in only 1 byte being allocated.
        (bfd_alloc2): Use bfd_alloc.
        * pe-mips.c (NUM_HOWTOS): New define.
        (coff_mips_reloc_name_lookup): Use it.
        (CALC_ADDEND): Check that reloc r_type field is valid.
        * peXXigen.c (_bfd_XXi_swap_aouthdr_in): Initialise unused entries
        in the DataDirectory.
        (pe_print_idata): Avoid reading beyond the end of the data block
        wen printing strings.
        (pe_print_edata): Likewise.
        Check for table indexing underflow.
        * peicode.h (pe_mkobject): Initialise the pe_opthdr field.
        (pe_bfd_object_p): Allocate and initialize enough space to hold a
        PEAOUTHDR, even if the opt_hdr field specified less.

-----------------------------------------------------------------------

Summary of changes:
 bfd/ChangeLog     |   37 +++++++++++++++++++++++++++++++++++++
 bfd/coff-i386.c   |   17 ++++++++++-------
 bfd/coff-x86_64.c |   11 +++++++----
 bfd/coffcode.h    |    9 +++------
 bfd/coffgen.c     |   17 +++++++++++++----
 bfd/opncls.c      |   26 +++++++++-----------------
 bfd/pe-mips.c     |    9 +++++----
 bfd/peXXigen.c    |   33 +++++++++++++++++++++++++--------
 bfd/peicode.h     |   14 ++++++++++----
 9 files changed, 119 insertions(+), 54 deletions(-)

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