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https://github.com/darlinghq/darling-gdb.git
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8a5e3e08a6
Target::new_output_section. (Layout::attach_allocated_section_to_segment): Put large section sections in a separate load segment with the large segment flag set. (Layout::segment_precedes): Sort large data segments after other load segments. (align_file_offset): New static function. (Layout::set_segment_offsets): Use align_file_offset. * output.h (class Output_section): Add is_small_section_ and is_large_section_ fields. (Output_section::is_small_section): New function. (Output_section::set_is_small_section): New function. (Output_section::is_large_section): New function. (Output_section::set_is_large_section): New function. (Output_section::is_large_data_section): New function. (class Output_segment): Add is_large_data_segment_ field. (Output_segment::is_large_data_segment): New function. (Output_segment::set_is_large_data_segment): New function. * output.cc (Output_section::Output_section): Initialize new fields. (Output_segment::Output_segment): Likewise. (Output_segment::add_output_section): Add assertion that large data sections always go in large data segments. Force small data sections to the end of the list of data sections. Force small BSS sections to the start of the list of BSS sections. For large BSS sections to the end of the list of BSS sections. * symtab.h (class Symbol): Declare is_common_shndx. (Symbol::is_defined): Check Symbol::is_common_shndx. (Symbol::is_common): Likewise. (class Symbol_table): Define enum Commons_section_type. Update declarations. Add small_commons_ and large_commons_ fields. * symtab.cc (Symbol::is_common_shndx): New function. (Symbol_table::Symbol_table): Initialize new fields. (Symbol_table::add_from_object): Put small and large common symbols in the right list. (Symbol_table::sized_finalized_symbol): Check Symbol::is_common_shndx. (Symbol_table::sized_write_globals): Likewise. * common.cc (Symbol_table::do_allocate_commons): Allocate new common symbol lists. Don't call do_allocate_commons_list if the list is empty. (Symbol_table::do_allocate_commons_list): Remove is_tls parameter. Add comons_section_type parameter. Change all callers. Handle small and large common symbols. * object.cc (Sized_relobj::do_finalize_local_symbols): Check Symbol::is_common_shndx. * resolve.cc (symbol_to_bits): Likewise. * target.h (Target::small_common_shndx): New function. (Target::small_common_section_flags): New function. (Target::large_common_shndx): New function. (Target::large_common_section_flags): New function. (Target::new_output_section): New function. (Target::Target_info): Add small_common_shndx, large_common_shndx, small_common_section_flags, and large_common_section_flags fields. (Target::do_new_output_section): New virtual function. * arm.cc (Target_arm::arm_info): Initialize new fields. * i386.cc (Target_i386::i386_info): Likewise. * powerpc.cc (Target_powerpc::powerpc_info) [all versions]: Likewise. * sparc.c (Target_sparc::sparc_info) [all versions]: Likewise. * x86_64.cc (Target_x86_64::x86_64_info): Likewise. (Target_x86_64::do_new_output_section): New function. * configure.ac: Define conditional MCMODEL_MEDIUM. * testsuite/Makefile.am (check_PROGRAMS): Add large. (large_SOURCES, large_CFLAGS, large_DEPENDENCIES): Define. (large_LDFLAGS): Define. * testsuite/large.c: New file. * testsuite/testfile.cc (Target_test::test_target_info): Initialize new fields. * configure, testsuite/Makefile.in: Rebuild.
366 lines
11 KiB
Plaintext
366 lines
11 KiB
Plaintext
dnl Process this file with autoconf to produce a configure script.
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AC_PREREQ(2.59)
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AC_INIT(gold, 0.1)
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AC_CONFIG_SRCDIR(gold.cc)
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AC_CANONICAL_TARGET
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AM_INIT_AUTOMAKE
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AM_CONFIG_HEADER(config.h:config.in)
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AC_ARG_WITH(sysroot,
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[ --with-sysroot[=DIR] search for usr/lib et al within DIR],
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[sysroot=$withval], [sysroot=no])
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if test "$sysroot" = "yes"; then
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sysroot='${exec_prefix}/${target_alias}/sys-root'
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elif test "$sysroot" = "no"; then
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sysroot=
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fi
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sysroot_relocatable=0
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if test -n "$sysroot"; then
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case "sysroot" in
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"${prefix}" | "${prefix}/"* | \
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"${exec_prefix}" | "${exec_prefix}/"* | \
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'${prefix}' | '${prefix}/'*| \
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'${exec_prefix}' | '${exec_prefix}/'*)
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sysroot_relocatable=1
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;;
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esac
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fi
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AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT, "$sysroot",
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[System root for target files])
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AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT_RELOCATABLE, $sysroot_relocatable,
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[Whether the system root can be relocated])
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dnl For now threads are a configure time option.
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AC_ARG_ENABLE([threads],
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[ --enable-threads multi-threaded linking],
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[case "${enableval}" in
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yes | "") threads=yes ;;
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no) threads=no ;;
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*) threads=yes ;;
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esac],
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[threads=no])
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if test "$threads" = "yes"; then
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AC_DEFINE(ENABLE_THREADS, 1,
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[Define to do multi-threaded linking])
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fi
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AM_CONDITIONAL(THREADS, test "$threads" = "yes")
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AC_ARG_ENABLE([plugins],
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[ --enable-plugins linker plugins],
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[case "${enableval}" in
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yes | "") plugins=yes ;;
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no) plugins=no ;;
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*) plugins=yes ;;
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esac],
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[plugins=no])
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if test "$plugins" = "yes"; then
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AC_DEFINE(ENABLE_PLUGINS, 1,
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[Define to enable linker plugins])
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fi
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AM_CONDITIONAL(PLUGINS, test "$plugins" = "yes")
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AC_ARG_ENABLE([targets],
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[ --enable-targets alternative target configurations],
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[case "${enableval}" in
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yes | "")
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AC_MSG_ERROR([--enable-targets option must specify target names or 'all'])
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;;
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no)
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enable_targets=
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;;
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*)
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enable_targets=$enableval
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;;
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esac],
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[# For now, enable all targets by default
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enable_targets=all
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])
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# Canonicalize the enabled targets.
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if test -n "$enable_targets"; then
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for targ in `echo $enable_targets | sed -e 's/,/ /g'`; do
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result=`$ac_config_sub $targ 2>/dev/null`
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if test -n "$result"; then
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canon_targets="$canon_targets $result"
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else
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# Permit unrecognized target names, like "all".
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canon_targets="$canon_targets $targ"
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fi
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done
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fi
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# See which specific instantiations we need.
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targetobjs=
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all_targets=
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default_machine=
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default_size=
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default_big_endian=
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default_osabi=ELFOSABI_NONE
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targ_32_little=
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targ_32_big=
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targ_64_little=
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targ_64_big=
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for targ in $target $canon_targets; do
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if test "$targ" = "all"; then
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targ_32_little=yes
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targ_32_big=yes
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targ_64_little=yes
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targ_64_big=yes
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all_targets=yes
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else
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. ${srcdir}/configure.tgt
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if test "$targ_obj" = "UNKNOWN"; then
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AC_MSG_ERROR("unsupported target $targ")
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else
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targetobjs="$targetobjs ${targ_obj}.\$(OBJEXT)"
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if test "$targ_extra_obj" != ""; then
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targetobjs="$targetobjs ${targ_extra_obj}.\$(OBJEXT)"
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fi
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if test "$targ_size" = "32" -o "$targ_extra_size" = "32"; then
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if test "$targ_big_endian" = "true" \
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-o "$targ_extra_big_endian" = "true"; then
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targ_32_big=yes
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fi
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if test "$targ_big_endian" = "false" \
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-o "$targ_extra_big_endian" = "false"; then
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targ_32_little=yes
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fi
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fi
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if test "$targ_size" = "64" -o "$targ_extra_size" = "64"; then
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if test "$targ_big_endian" = "true" \
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-o "$targ_extra_big_endian" = "true"; then
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targ_64_big=yes
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fi
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if test "$targ_big_endian" = "false" \
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-o "$targ_extra_big_endian" = "false"; then
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targ_64_little=yes
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fi
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fi
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if test "$target" = "$targ"; then
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default_machine=$targ_machine
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default_size=$targ_size
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default_big_endian=$targ_big_endian
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default_osabi=$targ_osabi
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fi
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fi
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fi
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done
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if test -n "$targ_32_little"; then
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AC_DEFINE(HAVE_TARGET_32_LITTLE, 1,
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[Define to support 32-bit little-endian targets])
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fi
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if test -n "$targ_32_big"; then
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AC_DEFINE(HAVE_TARGET_32_BIG, 1,
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[Define to support 32-bit big-endian targets])
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fi
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if test -n "$targ_64_little"; then
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AC_DEFINE(HAVE_TARGET_64_LITTLE, 1,
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[Define to support 64-bit little-endian targets])
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fi
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if test -n "$targ_64_big"; then
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AC_DEFINE(HAVE_TARGET_64_BIG, 1,
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[Define to support 64-bit big-endian targets])
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fi
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if test -n "$all_targets"; then
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TARGETOBJS='$(ALL_TARGETOBJS)'
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else
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TARGETOBJS="$targetobjs"
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fi
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AC_SUBST(TARGETOBJS)
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AC_DEFINE_UNQUOTED(GOLD_DEFAULT_MACHINE, $default_machine,
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[Default machine code])
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AC_DEFINE_UNQUOTED(GOLD_DEFAULT_SIZE, $default_size,
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[Default size (32 or 64)])
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AC_DEFINE_UNQUOTED(GOLD_DEFAULT_BIG_ENDIAN, $default_big_endian,
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[Default big endian (true or false)])
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AC_DEFINE_UNQUOTED(GOLD_DEFAULT_OSABI, $default_osabi,
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[Default OSABI code])
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AC_PROG_CC
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AC_PROG_CXX
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AC_PROG_YACC
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AC_PROG_RANLIB
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AC_PROG_INSTALL
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AC_PROG_LN_S
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AC_GNU_SOURCE
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ZW_GNU_GETTEXT_SISTER_DIR
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AM_PO_SUBDIRS
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AC_C_BIGENDIAN
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AC_EXEEXT
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AM_CONDITIONAL(NATIVE_LINKER,
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test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias")
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AM_CONDITIONAL(GCC, test "$GCC" = yes)
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dnl Some architectures do not support taking pointers of functions
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dnl defined in shared libraries except in -fPIC mode. We need to
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dnl tell the unittest framework if we're compiling for one of those
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dnl targets, so it doesn't try to run the tests that do that.
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AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
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case $target_cpu in
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i?86) true;;
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x86_64) false;;
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sparc64) false;;
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*) true;;
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esac])
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dnl Whether we can test -mcmodel=medium.
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AM_CONDITIONAL(MCMODEL_MEDIUM, [test "$target_cpu" = "x86_64"])
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dnl Test for __thread support.
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AC_CACHE_CHECK([for thread support], [gold_cv_c_thread],
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[AC_COMPILE_IFELSE([__thread int i = 1;],
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[gold_cv_c_thread=yes], [gold_cv_c_thread=no])])
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AM_CONDITIONAL(TLS, test "$gold_cv_c_thread" = "yes")
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dnl On GNU/Linux TLS in static programs only works when using glibc
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dnl 2.4 or later.
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AC_CACHE_CHECK([for glibc >= 2.4], [gold_cv_lib_glibc24],
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[AC_COMPILE_IFELSE([
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#include <features.h>
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#if !defined __GLIBC__
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error
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#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 4)
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error
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#endif
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], [gold_cv_lib_glibc24=yes], [gold_cv_lib_glibc24=no])])
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AM_CONDITIONAL(STATIC_TLS, test "$gold_cv_lib_glibc24" = "yes")
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dnl Test for #pragma omp threadprivate
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AC_CACHE_CHECK([for omp support], [gold_cv_c_threadprivate],
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[save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -fopenmp"
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AC_COMPILE_IFELSE([
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#include <omp.h>
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int i;
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#pragma omp threadprivate (i)
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], [gold_cv_c_threadprivate=yes], [gold_cv_c_threadprivate=no])
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CFLAGS="$save_CFLAGS"])
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if test "$gold_cv_c_threadprivate" = "yes"; then
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AC_DEFINE(HAVE_OMP_SUPPORT, 1,
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[Define if compiler supports #pragma omp threadprivate])
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fi
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AM_CONDITIONAL(OMP_SUPPORT, test "$gold_cv_c_threadprivate" = "yes")
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dnl Test for the -ftls-dialect=gnu2 option.
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mtls-dialect=gnu2"
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AC_COMPILE_IFELSE([int i;], [have_tls_gnu2=yes], [have_tls_gnu2=no])
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CFLAGS="$save_CFLAGS"
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AM_CONDITIONAL(TLS_GNU2_DIALECT, test "$have_tls_gnu2" = "yes")
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dnl On GNU/Linux TLS descriptors are supported by the dynamic loader
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dnl only with glibc 2.9 or later.
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AC_CACHE_CHECK([for glibc >= 2.9], [gold_cv_lib_glibc29],
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[AC_COMPILE_IFELSE([
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#include <features.h>
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#if !defined __GLIBC__
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error
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#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 9)
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error
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#endif
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], [gold_cv_lib_glibc29=yes], [gold_cv_lib_glibc29=no])])
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AM_CONDITIONAL(TLS_DESCRIPTORS, test "$gold_cv_lib_glibc29" = "yes")
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dnl Check whether the compiler supports constructor priorities in
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dnl attributes, which were added in gcc 4.3.
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AC_CACHE_CHECK([for constructor priorities], [gold_cv_c_conprio],
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[AC_COMPILE_IFELSE([void f() __attribute__ ((constructor (1)));],
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[gold_cv_c_conprio=yes], [gold_cv_c_conprio=no])])
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AM_CONDITIONAL(CONSTRUCTOR_PRIORITY, test "$gold_cv_c_conprio" = "yes")
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dnl Test for the -frandom-seed option.
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AC_CACHE_CHECK([for -frandom-seed support], [gold_cv_c_random_seed],
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[save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -frandom-seed=foo"
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AC_COMPILE_IFELSE([int i;], [gold_cv_c_random_seed=yes],
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[gold_cv_c_random_seed=no])
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CFLAGS="$save_CFLAGS"])
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if test "$gold_cv_c_random_seed" = "yes"; then
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# In Makefile, '$@' will be expanded to be the name of the file
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# being built, providing a unique seed for each file.
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RANDOM_SEED_CFLAGS=-frandom-seed=\$@
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fi
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AC_SUBST(RANDOM_SEED_CFLAGS)
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AM_BINUTILS_WARNINGS
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WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//'`
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AC_SUBST(WARN_CXXFLAGS)
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dnl Force support for large files by default. This may need to be
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dnl host dependent. If build == host, we can check getconf LFS_CFLAGS.
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LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
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AC_SUBST(LFS_CFLAGS)
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AC_CHECK_FUNCS(chsize)
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AC_REPLACE_FUNCS(pread ftruncate mremap ffsll)
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# Link in zlib if we can. This allows us to write compressed sections.
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AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
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AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_search_zlibVersion" != "no")
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AC_LANG_PUSH(C++)
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AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
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AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
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AC_CHECK_HEADERS(byteswap.h)
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AC_CHECK_FUNCS(mallinfo posix_fallocate)
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AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp])
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# Use of ::std::tr1::unordered_map::rehash causes undefined symbols
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# at link time with some versions of GCC.
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AC_CACHE_CHECK([whether ::std::tr1::unordered_map::rehash is usable.],
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[gold_cv_unordered_map_rehash],
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[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <tr1/unordered_map>
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void bar() { ::std::tr1::unordered_map<int, int> x; x.rehash(10); }
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]])], [gold_cv_unordered_map_rehash=yes], [gold_cv_unordered_map_rehash=no])])
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if test "$gold_cv_unordered_map_rehash" = "yes"; then
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AC_DEFINE(HAVE_TR1_UNORDERED_MAP_REHASH, 1,
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[Define if ::std::tr1::unordered_map::rehash is usable])
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fi
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# gcc 4.3.0 doesn't recognize the printf attribute on a template
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# function. Check for that. This is gcc bug 35546. This test can
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# probably be removed after the bug has been fixed for a while.
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AC_CACHE_CHECK([whether we can use attributes with template functions],
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[gold_cv_template_attribute],
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[AC_COMPILE_IFELSE([
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template<typename T> extern void foo(const char*, ...)
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__attribute__ ((__format__ (__printf__, 1, 2)));
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template<typename T> void foo(const char* format, ...) {}
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void bar() { foo<int>("%s\n", "foo"); }
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], [gold_cv_template_attribute=yes], [gold_cv_template_attribute=no])])
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if test "$gold_cv_template_attribute" = "yes"; then
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AC_DEFINE(HAVE_TEMPLATE_ATTRIBUTES, 1,
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[Define if attributes work on C++ templates])
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fi
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AC_LANG_POP(C++)
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AM_MAINTAINER_MODE
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AC_OUTPUT(Makefile testsuite/Makefile po/Makefile.in:po/Make-in)
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