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nickrob [Sun, 15 Oct 2006 19:38:45 +0000 (19:38 +0000)]
(thread_db_wait): Don't bother continuing if the wait result indicates the
program terminated with a signal (from gdb-6.3-ia64-sigill-
20051115.patch, a
patch for Fedora Core 5).
nickrob [Sun, 15 Oct 2006 19:37:49 +0000 (19:37 +0000)]
*** empty log message ***
hjl [Sun, 15 Oct 2006 14:22:10 +0000 (14:22 +0000)]
2006-10-15 H.J. Lu <hongjiu.lu@intel.com>
PR ld/3314
* elf.c (assign_file_positions_for_non_load_sections): Don't
page align empty SHF_ALLOC sections.
gdbadmin [Sun, 15 Oct 2006 00:00:32 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Sat, 14 Oct 2006 23:59:18 +0000 (23:59 +0000)]
daily update
eliz [Sat, 14 Oct 2006 18:34:02 +0000 (18:34 +0000)]
* gdb.texinfo (Backtrace): Fix last change.
nickrob [Sat, 14 Oct 2006 00:21:13 +0000 (00:21 +0000)]
(Backtrace): Order correctly and add other cases.
nickrob [Sat, 14 Oct 2006 00:20:02 +0000 (00:20 +0000)]
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gdbadmin [Sat, 14 Oct 2006 00:00:09 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Fri, 13 Oct 2006 23:59:16 +0000 (23:59 +0000)]
daily update
jakub [Fri, 13 Oct 2006 21:03:40 +0000 (21:03 +0000)]
* elfxx-sparc.c (_bfd_sparc_elf_finish_dynamic_sections): Set
.plt sh_entsize to 0 if plt header size isn't multiple of
plt entry size or for 32-bit which adds a nop insn at the
end of the .plt section.
cgf [Fri, 13 Oct 2006 12:49:18 +0000 (12:49 +0000)]
* winsup.h: Turn off DEBUGGING.
corinna [Fri, 13 Oct 2006 11:55:05 +0000 (11:55 +0000)]
* Makefile.in (CFLAGS): Drop -nostdinc.
* cygsuba.c: Reorder includes to allow building with VC++.
* make-64bit-version-with-visual-c.bat: New file.
nickc [Fri, 13 Oct 2006 11:36:02 +0000 (11:36 +0000)]
* dwarf2dbg.c (out_debug_info): Use TC_DWARF2_EMIT_OFFSET to emit a disjoint DW_AT range.
corinna [Fri, 13 Oct 2006 11:10:27 +0000 (11:10 +0000)]
* autoload.cc (Wow64DisableWow64FsRedirection): Define.
(Wow64RevertWow64FsRedirection): Define.
* security.cc (cygsuba_installed): New shared variable to store result
of cygsuba.dll installation test.
(subauth): Check if cygsuba.dll has been installed and registered
before issuing the (sub)authentication.
nickc [Fri, 13 Oct 2006 09:43:28 +0000 (09:43 +0000)]
PR binutils/2876
* configure.in: Check for the mkstemp and mkdtemp functions.
* configure: Regenerate.
* config.in (HAVE_MKDTEMP): New potential define.
(MAKE_MKSTEMP): Likewise.
* bucomm.c (make_tempname): Use mkstemp if it is available.
* make_tempdir): New function: Create a temporary directory using mkdtemp, if
it is available.
* bucomm.h (make_tempdir): New prototype.
* objcopy.c (copy_archive): Use make_tempdir if it is available.
(strip_main): Produce an warning message if a temporary file could not be
(copy_main): Likewise.
* ar.c (write_archive): Likewise.
nickc [Fri, 13 Oct 2006 06:55:50 +0000 (06:55 +0000)]
* config/tc-score.c (md_show_usage): Print -KPIC option usage.
brobecke [Fri, 13 Oct 2006 02:40:47 +0000 (02:40 +0000)]
Add in one of the previous entries the fact that the change was to
fix PR symtab/2018.
gdbadmin [Fri, 13 Oct 2006 00:00:33 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Thu, 12 Oct 2006 23:59:17 +0000 (23:59 +0000)]
daily update
bwilson [Thu, 12 Oct 2006 21:56:18 +0000 (21:56 +0000)]
bfd/
* elf32-xtensa.c (elf_xtensa_action_discarded): New.
(elf_backend_action_discarded): Define.
ld/
* emultempl/xtensaelf.em (is_inconsistent_linkonce_section): Check
for linkonce XCC exception tables (".e" and ".h").
drow [Thu, 12 Oct 2006 19:03:22 +0000 (19:03 +0000)]
* gdb.base/annota1.exp, gdb.base/maint.exp: Use string_to_regexp.
corinna [Thu, 12 Oct 2006 15:38:25 +0000 (15:38 +0000)]
* security.cc (create_token): Fix condition for source identifier.
dannysmith [Thu, 12 Oct 2006 04:25:56 +0000 (04:25 +0000)]
* include/winuser.h (LR_DEFAULTSIZE, LR_VGACOLOUR): Define.
gdbadmin [Thu, 12 Oct 2006 00:00:34 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Wed, 11 Oct 2006 23:59:20 +0000 (23:59 +0000)]
daily update
bwilson [Wed, 11 Oct 2006 22:18:30 +0000 (22:18 +0000)]
* emulparams/elf32xtensa.sh (TEXT_PLT): Enable.
(OTHER_READONLY_SECTIONS): Add linkonce .xt_except_table sections.
(OTHER_READWRITE_SECTIONS): Add linkonce .xt_except_desc sections.
(OTHER_SDATA_SECTIONS): New.
* scripttempl/elfxtensa.sc: Import changes from elf.sc.
bwilson [Wed, 11 Oct 2006 22:16:50 +0000 (22:16 +0000)]
* elf32-xtensa.c (elf_xtensa_relocate_section): Return after
unresolvable relocation error.
(elf_xtensa_finish_dynamic_symbol): Set value of undefined, weak
symbols to zero.
jjohnstn [Wed, 11 Oct 2006 19:30:34 +0000 (19:30 +0000)]
2006-10-11 Jeff Johnston <jjohnstn@redhat.com>
* COPYING.NEWLIB: Updated.
* COPYING.LIBGLOSS: Ditto.
jjohnstn [Wed, 11 Oct 2006 19:20:31 +0000 (19:20 +0000)]
2006-10-11 Yang Tse <yangsita@gmail.com>
* setjmp.h: Use __extension__ keyword for gcc's braced-groups.
corinna [Wed, 11 Oct 2006 16:21:11 +0000 (16:21 +0000)]
* select.cc (struct socketinf): Convert ser_num and w4 to dynamically
allocated arrays. Add max_w4 member to keep track.
(thread_socket): Make timeout depending on number of sockets to wait
for. Loop WFMO over all sockets.
(start_thread_socket): Handle any number of sockets. Fix typo. Don't
close socket event in out of memory condition.
(socket_cleanup): Free ser_num and w4.
drow [Wed, 11 Oct 2006 15:39:34 +0000 (15:39 +0000)]
* dwarf2read.c (dwarf_decode_lines): Call record_line upon
encountering a different subfile.
jakub [Wed, 11 Oct 2006 14:58:19 +0000 (14:58 +0000)]
* ldlang.c (lang_append_dynamic_list): When appending, add all elements
of the dynamic list rather than just the first entry.
fred [Wed, 11 Oct 2006 10:50:07 +0000 (10:50 +0000)]
2006-10-11 Denis Pilat <denis.pilat@st.com>
* tui/tui-source.c (tui_set_source_content): handle source
files that contain non unix end-of-line.
corinna [Wed, 11 Oct 2006 08:04:49 +0000 (08:04 +0000)]
* libc/reent/reeent.c (_reclaim_reent): Free _REENT_MP_RESULT.
dj [Wed, 11 Oct 2006 00:29:27 +0000 (00:29 +0000)]
merge from gcc
gdbadmin [Wed, 11 Oct 2006 00:00:03 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Tue, 10 Oct 2006 23:59:19 +0000 (23:59 +0000)]
daily update
bwilson [Tue, 10 Oct 2006 20:57:36 +0000 (20:57 +0000)]
bfd/
* elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Add DT_DEBUG
for PIE executables.
ld/
* emulparams/elf32xtensa.sh (GENERATE_PIE_SCRIPT): Enable.
bwilson [Tue, 10 Oct 2006 18:55:55 +0000 (18:55 +0000)]
* gdb.texinfo (Command Syntax, Connecting, Remote configuration,
Renesas Boards, ST2000, TUI Keys, TUI Single Key Mode, TUI Commands,
Emacs, Console I/O): Fix @key and @kbd usage.
iant [Tue, 10 Oct 2006 18:54:06 +0000 (18:54 +0000)]
Avoid multiple definition errors from linkonce sections.
jjohnstn [Tue, 10 Oct 2006 18:27:55 +0000 (18:27 +0000)]
2006-10-10 Thiemo Seufer <ths@mips.com>
* mips/Makefile.in: Add INCLUDES to local compile rules.
jjohnstn [Tue, 10 Oct 2006 15:52:39 +0000 (15:52 +0000)]
Removed.
drow [Tue, 10 Oct 2006 14:23:10 +0000 (14:23 +0000)]
* ser-mingw.c (free_pipe_state, pipe_wait_handle): Update
for changes to pipe_select_thread.
(pipe_done_wait_handle): New.
(_initialize_ser_windows): Reference it.
schwab [Tue, 10 Oct 2006 10:45:44 +0000 (10:45 +0000)]
* dwarf.c (display_debug_loc): Don't dereference loc_offsets when
there are no location lists.
(display_debug_ranges): Similar for range_lists.
drow [Tue, 10 Oct 2006 03:17:52 +0000 (03:17 +0000)]
2006-10-09 Jan Kratochvil <jan.kratochvil@redhat.com>
Daniel Jacobowitz <dan@codesourcery.com>
* Makefile.in (expprint.o, parse.o, target.o): Update.
* dwarf2loc.c (dwarf_expr_tls_address): Move body to
target_translate_tls_address. Call it.
* eval.c (evaluate_subexp_standard): Handle UNOP_MEMVAL_TLS.
* expprint.c (print_subexp_standard): Likewise.
(op_name_standard, dump_subexp_body_standard): Likewise.
* expression.h (enum exp_opcode): Add UNOP_MEMVAL_TLS.
(union exp_element): Add objfile.
* parse.c (write_exp_elt_objfile): New function.
(msym_tls_symbol_type): New.
(write_exp_msymbol): Handle TLS.
(operator_length_standard): Handle UNOP_MEMVAL_TLS.
(build_parse): Initialize msym_tls_symbol_type.
* parser-defs.h (write_exp_elt_objfile): New prototype.
* target.c (target_translate_tls_address): New.
* target.h (target_translate_tls_address): Add prototype.
2006-10-09 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.threads/tls-nodebug.c, gdb.threads/tls-nodebug.exp: New test.
gdbadmin [Tue, 10 Oct 2006 00:00:33 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Mon, 9 Oct 2006 23:59:20 +0000 (23:59 +0000)]
daily update
drow [Mon, 9 Oct 2006 20:16:10 +0000 (20:16 +0000)]
* solib.c (solib_open): Handle an empty solib_absolute_prefix like a
missing one.
drow [Mon, 9 Oct 2006 19:58:06 +0000 (19:58 +0000)]
* solib.c (solib_read_symbols): Stop if the file was not found.
drow [Mon, 9 Oct 2006 19:28:14 +0000 (19:28 +0000)]
2006-10-09 Paul Pluzhnikov <ppluzhnikov@charter.net>
PR c++/2116
* valops.c (find_overload_match): Check for a NULL name.
2006-10-09 Daniel Jacobowitz <dan@codesourcery.com>
PR c++/2116
* gdb.cp/call-c.cc, gdb.cp/call-c.exp, gdb.cp/call-c-1.c: New.
corinna [Mon, 9 Oct 2006 14:01:52 +0000 (14:01 +0000)]
* path.cc (path_conv::get_nt_native_path): Properly detect \\?\ paths.
(mount_info::conv_to_win32_path): Update comment.
* fhandler_disk_file.cc (path_conv::ndisk_links): Use backslashes
to make NT kernel functions work for \\?\GLOBALROOT paths.
corinna [Mon, 9 Oct 2006 08:27:23 +0000 (08:27 +0000)]
* devices.in: Raise number of handled serial ports to 64.
* devices.cc: Regenerate.
gdbadmin [Mon, 9 Oct 2006 00:00:34 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Sun, 8 Oct 2006 23:59:20 +0000 (23:59 +0000)]
daily update
pbrook [Sun, 8 Oct 2006 18:44:07 +0000 (18:44 +0000)]
2006-10-08 Paul Brook <paul@codesourcery.com>
gas/
* config/tc-arm.c (parse_big_immediate): 64-bit host fix.
(parse_operands): Use parse_big_immediate for OP_NILO.
(neon_cmode_for_logic_imm): Try smaller element sizes.
(neon_cmode_for_move_imm): Ditto.
(do_neon_logic): Handle .i64 pseudo-op.
gas/testsuite/
* testsuite/gas/arm/neon-cov.s: Test pseudo-instruction forms of
vmov, vmvn and logic immediate instructions.
* testsuite/gas/arm/neon-cov.d: ditto.
gdbadmin [Sun, 8 Oct 2006 00:00:03 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Sat, 7 Oct 2006 23:59:22 +0000 (23:59 +0000)]
daily update
gdbadmin [Sat, 7 Oct 2006 00:00:02 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Fri, 6 Oct 2006 23:59:23 +0000 (23:59 +0000)]
daily update
cgf [Fri, 6 Oct 2006 22:32:09 +0000 (22:32 +0000)]
.
brobecke [Fri, 6 Oct 2006 20:48:42 +0000 (20:48 +0000)]
* gdb.ada/arrayidx.exp: Remove calls to setup_kfail now that
the corresponding bug has been fixed in GDB (PR/2018).
brobecke [Fri, 6 Oct 2006 20:42:02 +0000 (20:42 +0000)]
* dwarf2read.c (read_array_type): Set the type name if the name
attribute is present.
iant [Fri, 6 Oct 2006 20:40:16 +0000 (20:40 +0000)]
Lay out object file sections when we add the symbols to the symbol
table.
jjohnstn [Fri, 6 Oct 2006 20:34:49 +0000 (20:34 +0000)]
2006-10-06 Jeff Johnston <jjohnstn@redhat.com>
* Makefile.in: Add CFLAGS_FOR_TARGET and CCASFLAGS to
FLAGS_TO_PASS.
vapier [Fri, 6 Oct 2006 20:10:37 +0000 (20:10 +0000)]
* genscripts.sh: Respect LIBPATH_SUFFIX when not using sysroot.
brobecke [Fri, 6 Oct 2006 18:17:56 +0000 (18:17 +0000)]
* gdb.base/subst.exp: New testcase.
brobecke [Fri, 6 Oct 2006 18:05:58 +0000 (18:05 +0000)]
* gdb.ada/array_return/pck.ads: Add copyright notice.
* gdb.ada/array_return/pck.adb: Likewise.
* gdb.ada/array_return/p.adb: Likewise.
* gdb.ada/exec_changed/first.adb: Likewise.
* gdb.ada/exec_changed/second.adb: Likewise.
brobecke [Fri, 6 Oct 2006 17:46:56 +0000 (17:46 +0000)]
* gdb.ada/watch_arg/watch.adb: New file.
* gdb.ada/watch_arg.exp: New testcase.
brobecke [Fri, 6 Oct 2006 02:01:34 +0000 (02:01 +0000)]
* blockframe.c (block_innermost_frame): Rewrite frame search logic.
gdbadmin [Fri, 6 Oct 2006 00:00:02 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Thu, 5 Oct 2006 23:59:26 +0000 (23:59 +0000)]
daily update
drow [Thu, 5 Oct 2006 19:42:31 +0000 (19:42 +0000)]
* Makefile.in (gdb_expat_h): New.
(xml_support_h): Add gdb_expat.h dependency.
(memory-map.o, xml-support.o): Likewise.
* gdb_expat.h: New file.
* xml-support.h: Include it.
* memory-map.c, xml-support.c: Likewise. Remove XML_STATUS_OK
definitions.
drow [Thu, 5 Oct 2006 19:20:52 +0000 (19:20 +0000)]
* remote.c (get_remote_state_raw): Renamed from get_remote_state.
(get_remote_state): New function.
(init_remote_state, _initialize_remote): Use get_remote_state_raw.
corinna [Thu, 5 Oct 2006 17:24:13 +0000 (17:24 +0000)]
* cygcheck.cc (get_word, get_dword): Move to path.cc.
(LINK_EXTENSION): New macro.
(check_existence): New static function.
(find_on_path): Check for symbolic links if asked.
(dll_info): New error handling.
(track_down): Only call dll_info() for executables, display
an error for symlinks, and print magic number for others.
(find_app_on_path): New static function.
(cygcheck, dump_sysinfo): Call find_app_on_path() instead of
find_on_path().
* path.cc (cmp_shortcut_header): New static function.
(get_word, get_dword): Moved from cygcheck.cc.
(EXE_MAGIC, SHORTCUT_MAGIC, SYMLINK_COOKIE, SYMLINK_MAGIC): New
macros.
(is_exe, is_symlink, readlink): New functions.
* path.h (is_exe, is_symlink, readlink): Declare.
(get_word, get_dword): Ditto.
dannysmith [Thu, 5 Oct 2006 07:36:05 +0000 (07:36 +0000)]
* include/winreg.h (RegDeleteKeyEx{A|W}): Add prototype and UNICODE
mappings.
(KEY_WOW64_32KEY, KEY_WOW64_64KEY): Define.
* lib/advapi.def (RegDeleteKeyEx{A|W}): Export.
bwilson [Thu, 5 Oct 2006 01:06:12 +0000 (01:06 +0000)]
* emulparams/xtensa-config.sh: Delete file.
* emulparams/elf32xtensa.sh: Set MAXPAGESIZE here instead of including
xtensa-config.sh.
* Makefile.am (eelf32xtensa.c): Remove dependency on xtensa-config.sh.
* Makefile.in: Regenerate.
fnf [Thu, 5 Oct 2006 01:04:22 +0000 (01:04 +0000)]
Reviewed and approved by Daniel Jacobowitz <drow@false.org>
2006-10-04 Fred Fish <fnf@specifix.com>
* vec.c: Include defs.h first. This pulls in config.h which can
affect other includes.
gdbadmin [Thu, 5 Oct 2006 00:00:39 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Wed, 4 Oct 2006 23:59:24 +0000 (23:59 +0000)]
daily update
brobecke [Wed, 4 Oct 2006 21:36:39 +0000 (21:36 +0000)]
* somread.c (som_symtab_read): Avoid using alloca for potentially
large buffers.
drow [Wed, 4 Oct 2006 20:14:43 +0000 (20:14 +0000)]
* arch-utils.h (gdbarch_info_fill): Remove duplicate prototype.
corinna [Wed, 4 Oct 2006 12:52:42 +0000 (12:52 +0000)]
* Makefile.in: Semi-revert semi-reversion of 2006-08-30 change, now
correctly parenthesized.
hjl [Wed, 4 Oct 2006 11:50:43 +0000 (11:50 +0000)]
2006-10-04 H.J. Lu <hongjiu.lu@intel.com>
* readelf.c (debug_apply_rela_addends): Don't ignore relocation
against symbols without type.
dannysmith [Wed, 4 Oct 2006 08:57:27 +0000 (08:57 +0000)]
* include/winnt.h (CASSERT): Define.
[mingw-Bugs-
1568067]
* include/winuser.h: (DISP_CHANGE_BADDUALVIEW): Define.
* include/wingdi.h: (DM_POSITION): Define.
gdbadmin [Wed, 4 Oct 2006 00:00:32 +0000 (00:00 +0000)]
*** empty log message ***
amodra [Tue, 3 Oct 2006 23:59:25 +0000 (23:59 +0000)]
daily update
kevinb [Tue, 3 Oct 2006 22:49:05 +0000 (22:49 +0000)]
Add code for software singlestep of AM33 LIW instructions. Revise code
for handling am33's SETLB and Lcc instructions.
jjohnstn [Tue, 3 Oct 2006 16:33:50 +0000 (16:33 +0000)]
2006-10-03 Jeff Johnston <jjohnstn@redhat.com>
* arm/linux-syscalls0.c: Rewrite bx insn architecture flag check to avoid use of __ARM_ARCH__.
drow [Tue, 3 Oct 2006 15:54:01 +0000 (15:54 +0000)]
* memory-map.c (XML_STATUS_OK, XML_STATUS_ERROR): Provide default
definitions.
* xml-support.c (XML_STATUS_OK, XML_STATUS_ERROR): Likewise.
jakub [Tue, 3 Oct 2006 13:15:37 +0000 (13:15 +0000)]
* elf-bfd.h (struct eh_cie_fde): Add set_loc pointer.
* elf-eh-frame.c (skip_cfa_op): Fix handling of DW_CFA_advance_loc.
Handle DW_CFA_{remember,restore}_state, DW_CFA_GNU_window_save,
DW_CFA_val_{offset{,_sf},expression}.
(skip_non_nops): Record number of DW_CFA_set_loc ops.
(_bfd_elf_discard_section_eh_frame): Require skip_non_nops recognizes
all ops. If there are any DW_CFA_set_loc ops and they are pcrel
or going to be pcrel, compute set_loc array.
(_bfd_elf_eh_frame_section_offset): If make_relative, kill relocations
against DW_CFA_set_loc operands.
(_bfd_elf_write_section_eh_frame): Handle DW_CFA_set_loc adjusting.
* ld-elf/eh4.d: New test.
* ld-elf/eh4.s: New file.
* ld-elf/eh4a.s: New file.
nickc [Tue, 3 Oct 2006 10:06:26 +0000 (10:06 +0000)]
* pe-dll.c : Fix typo.
(autofilter_symbolprefixlist) : Remove __imp_.
(is_import) : New.
(auto-export) : Remove re-import check. Moved to callers.
(process_def_file) : Check is symbol is an import. Always underscore __imp_.
Only skip underscore on underscored targets.
(make_one) : Always underscore __imp_.
(pe_create_runtime_relocator_reference) : Only underscore _pei386_runtime_relocator on underscored targets.
(pe_process_import_defs) : Always underscore __imp_.
* pe.em (U) : New macro.
(set_pe_subsystem) : Remove underscore from _WinMainCRTStartup on wince subsystem case.
(pe_find_data_imports) : Use U on "_head_".
(gld_${EMULATION_NAME}_unrecognized_file) : Use U.
dannysmith [Tue, 3 Oct 2006 08:43:40 +0000 (08:43 +0000)]
* lib/rpcrt4.def: Remove "_imp__"-prefixed export symbols.
* lib/user32.def: Likewise.
amodra [Tue, 3 Oct 2006 00:24:33 +0000 (00:24 +0000)]
daily update
gdbadmin [Tue, 3 Oct 2006 00:00:38 +0000 (00:00 +0000)]
*** empty log message ***
kazu [Mon, 2 Oct 2006 22:52:19 +0000 (22:52 +0000)]
* elflink.c (_bfd_elf_merge_symbol): Discard references to TLS
symbols from the --just-syms file.
jjohnstn [Mon, 2 Oct 2006 19:57:46 +0000 (19:57 +0000)]
2006-10-02 Nick Clifton <nickc@redhat.com>
* arm/linux-syscalls0.c: Add arm architecture flag
checks around bx insn.
tromey [Mon, 2 Oct 2006 18:03:18 +0000 (18:03 +0000)]
* tls.m4 (GCC_CHECK_TLS): Pass empty argument as "help arg" to
GCC_ENABLE.
nickc [Mon, 2 Oct 2006 17:10:55 +0000 (17:10 +0000)]
* ld-arm/use-thumb-lib.sym: Robustify, by ignoring symbols we're
not interested in and bucket number.
nickc [Mon, 2 Oct 2006 16:53:04 +0000 (16:53 +0000)]
* ld-fastcall/fastcall.exp: Add x86_64-pc-mingw64 as valid target.
* ld-pe/pe.exp: Likewise.
* lib/ld-lib.exp ( is_pecoff_format): Accept x86_64-pc-mingw64.