binutils-gdb/ld/configure.ac
Indu Bhagat cf0e0a0ba9 bfd: linker: merge .sframe sections
The linker merges all the input .sframe sections.  When merging, the
linker verifies that all the input .sframe sections have the same
abi/arch.

The linker uses libsframe library to perform key actions on the
.sframe sections - decode, read, and create output data.  This
implies buildsystem changes to make and install libsframe before
libbfd.

The linker places the output .sframe section in a new segment of its
own: PT_GNU_SFRAME.  A new segment is not added, however, if the
generated .sframe section is empty.

When a section is discarded from the final link, the corresponding
entries in the .sframe section for those functions are also deleted.

The linker sorts the SFrame FDEs on start address by default and sets
the SFRAME_F_FDE_SORTED flag in the .sframe section.

This patch also adds support for generation of SFrame unwind
information for the .plt* sections on x86_64.  SFrame unwind info is
generated for IBT enabled PLT, lazy/non-lazy PLT.

The existing linker option --no-ld-generated-unwind-info has been
adapted to include the control of whether .sframe unwind information
will be generated for the linker generated sections like PLT.

Changes to the linker script have been made as necessary.

ChangeLog:

	* Makefile.def: Add install dependency on libsframe for libbfd.
	* Makefile.in: Regenerated.
	* bfd/Makefile.am: Add elf-sframe.c
	* bfd/Makefile.in: Regenerated.
	* bfd/bfd-in2.h (SEC_INFO_TYPE_SFRAME): Regenerated.
	* bfd/configure: Regenerate.
	* bfd/configure.ac: Add elf-sframe.lo.
	* bfd/elf-bfd.h (struct sframe_func_bfdinfo): New struct.
	(struct sframe_dec_info): Likewise.
	(struct sframe_enc_info): Likewise.
	(struct elf_link_hash_table): New member for encoded .sframe
	object.
	(struct output_elf_obj_tdata): New member.
	(elf_sframe): New access macro.
	(_bfd_elf_set_section_sframe): New declaration.
	* bfd/elf.c (get_segment_type): Handle new segment
	PT_GNU_SFRAME.
	(bfd_section_from_phdr): Likewise.
	(get_program_header_size): Likewise.
	(_bfd_elf_map_sections_to_segments): Likewise.
	* bfd/elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Add
	contents to the .sframe sections or .plt* entries.
	* bfd/elflink.c (elf_section_ignore_discarded_relocs): Handle
	SEC_INFO_TYPE_SFRAME.
	(_bfd_elf_default_action_discarded): Handle .sframe section.
	(elf_link_input_bfd): Merge .sframe section.
	(bfd_elf_final_link): Write the output .sframe section.
	(bfd_elf_discard_info): Handle discarding .sframe section.
	* bfd/elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Create
	.sframe section for .plt and .plt.sec.
	(_bfd_x86_elf_finish_dynamic_sections): Handle .sframe from
	.plt* sections.
	* bfd/elfxx-x86.h (PLT_SFRAME_FDE_START_OFFSET): New
	definition.
	(SFRAME_PLT0_MAX_NUM_FRES): Likewise.
	(SFRAME_PLTN_MAX_NUM_FRES): Likewise.
	(struct elf_x86_sframe_plt): New structure.
	(struct elf_x86_link_hash_table): New member.
	(struct elf_x86_init_table): New members for .sframe
	creation.
	* bfd/section.c: Add new definition SEC_INFO_TYPE_SFRAME.
	* binutils/readelf.c (get_segment_type): Handle new segment
	PT_GNU_SFRAME.
	* ld/ld.texi: Update documentation for
	--no-ld-generated-unwind-info.
	* ld/scripttempl/elf.sc: Support .sframe sections.
	* ld/Makefile.am (TESTSFRAMELIB): Use it.
	(check-DEJAGNU): Likewise.
	* ld/Makefile.in: Regenerated.
	* ld/configure.ac (TESTSFRAMELIB): Set to the .so or .a like TESTBFDLIB.
	* ld/configure: Regenerated.
	* bfd/elf-sframe.c: New file.

include/ChangeLog:

	* elf/common.h (PT_GNU_SFRAME): New definition.
	* elf/internal.h (struct elf_segment_map): Handle new segment
	type PT_GNU_SFRAME.

ld/testsuite/ChangeLog:

	* ld/testsuite/ld-bootstrap/bootstrap.exp: Add SFRAMELIB.
	* ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test
	  sframe-simple-1.
	* ld/testsuite/ld-aarch64/sframe-bar.s: New file.
	* ld/testsuite/ld-aarch64/sframe-foo.s: Likewise.
	* ld/testsuite/ld-aarch64/sframe-simple-1.d: Likewise.
	* ld/testsuite/ld-sframe/sframe-empty.d: New test.
	* ld/testsuite/ld-sframe/sframe-empty.s: New file.
	* ld/testsuite/ld-sframe/sframe.exp: New testsuite.
	* ld/testsuite/ld-x86-64/sframe-bar.s: New file.
	* ld/testsuite/ld-x86-64/sframe-foo.s: Likewise.
	* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
	* ld/testsuite/ld-x86-64/sframe-plt-1.d: Likewise.
	* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
	* ld/testsuite/ld-x86-64/x86-64.exp: Add new tests -
	  sframe-simple-1, sframe-plt-1.
	* ld/testsuite/lib/ld-lib.exp: Add new proc to check if
	  assembler supports SFrame section.
	* ld/testsuite/ld-sframe/discard.d: New file.
	* ld/testsuite/ld-sframe/discard.ld: Likewise.
	* ld/testsuite/ld-sframe/discard.s: Likewise.
2022-11-15 15:49:47 -08:00

689 lines
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dnl Process this file with autoconf to produce a configure script
dnl
dnl Copyright (C) 2012-2022 Free Software Foundation, Inc.
dnl
dnl This file is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; see the file COPYING3. If not see
dnl <http://www.gnu.org/licenses/>.
dnl
m4_include([../bfd/version.m4])
AC_INIT([ld], BFD_VERSION)
AC_CONFIG_SRCDIR(ldmain.c)
AC_CANONICAL_TARGET
AC_CANONICAL_BUILD
AM_INIT_AUTOMAKE
AM_SILENT_RULES([yes])
AM_MAINTAINER_MODE
AC_PROG_CC
AC_PROG_CXX
AC_PROG_GREP
AC_GNU_SOURCE
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_INSTALL
PKG_PROG_PKG_CONFIG
LT_INIT
ACX_LARGEFILE
ac_checking=
. ${srcdir}/../bfd/development.sh
test "$development" = true && ac_checking=yes
AC_ARG_ENABLE(checking,
[ --enable-checking enable run-time checks],
[case "${enableval}" in
no|none) ac_checking= ;;
*) ac_checking=yes ;;
esac])dnl
if test x$ac_checking != x ; then
AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
fi
AC_ARG_WITH(lib-path, [ --with-lib-path=dir1:dir2... set default LIB_PATH],LIB_PATH=$withval)
AC_ARG_ENABLE(targets,
[ --enable-targets alternative target configurations],
[case "${enableval}" in
yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
;;
no) enable_targets= ;;
*) enable_targets=$enableval ;;
esac])dnl
BFD_64_BIT
AC_ARG_WITH(sysroot,
[ --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
[
case ${with_sysroot} in
yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
*) TARGET_SYSTEM_ROOT=$with_sysroot ;;
esac
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
use_sysroot=yes
if test "x$prefix" = xNONE; then
test_prefix=/usr/local
else
test_prefix=$prefix
fi
if test "x$exec_prefix" = xNONE; then
test_exec_prefix=$test_prefix
else
test_exec_prefix=$exec_prefix
fi
case ${TARGET_SYSTEM_ROOT} in
"${test_prefix}"|"${test_prefix}/"*|\
"${test_exec_prefix}"|"${test_exec_prefix}/"*|\
'${prefix}'|'${prefix}/'*|\
'${exec_prefix}'|'${exec_prefix}/'*)
t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
TARGET_SYSTEM_ROOT_DEFINE="$t"
;;
esac
], [
use_sysroot=no
TARGET_SYSTEM_ROOT=
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
])
AC_SUBST(use_sysroot)
AC_SUBST(TARGET_SYSTEM_ROOT)
AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
dnl Use --enable-gold to decide if this linker should be the default.
dnl "install_as_default" is set to false if gold is the default linker.
dnl "installed_linker" is the installed BFD linker name.
AC_ARG_ENABLE(gold,
[[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]],
[case "${enableval}" in
default)
install_as_default=no
installed_linker=ld.bfd
;;
yes|no)
install_as_default=yes
installed_linker=ld.bfd
;;
*)
AC_MSG_ERROR([invalid --enable-gold argument])
;;
esac],
[install_as_default=yes
installed_linker=ld.bfd])
AC_SUBST(install_as_default)
AC_SUBST(installed_linker)
AC_ARG_ENABLE([got],
AS_HELP_STRING([--enable-got=<type>],
[GOT handling scheme (target, single, negative, multigot)]),
[case "${enableval}" in
target | single | negative | multigot) got_handling=$enableval ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-got option) ;;
esac],
[got_handling=target])
case "${got_handling}" in
target)
AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_TARGET_DEFAULT],
[Define to choose default GOT handling scheme]) ;;
single)
AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_SINGLE],
[Define to choose default GOT handling scheme]) ;;
negative)
AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_NEGATIVE],
[Define to choose default GOT handling scheme]) ;;
multigot)
AC_DEFINE([GOT_HANDLING_DEFAULT], [GOT_HANDLING_MULTIGOT],
[Define to choose default GOT handling scheme]) ;;
*) AC_MSG_ERROR(bad value ${got_handling} for --enable-got option) ;;
esac
# PR gas/19109
# Decide the default method for compressing debug sections.
ac_default_compressed_debug_sections=unset
# Provide a configure time option to override our default.
AC_ARG_ENABLE(compressed_debug_sections,
AS_HELP_STRING([--enable-compressed-debug-sections={all,ld,none}],
[compress debug sections by default])],
[case ,"${enableval}", in
,yes, | ,all, | *,ld,*) ac_default_compressed_debug_sections=yes ;;
,no, | ,none,) ac_default_compressed_debug_sections=no ;;
esac])dnl
# Select default compression algorithm.
ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_GABI_ZLIB
AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
[Default compression algorithm for --enable-compressed-debug-sections.]),
[case "${enableval}" in
zstd) ac_default_compressed_debug_sections_algorithm=COMPRESS_DEBUG_ZSTD ;;
esac])dnl
# Decide setting DT_RUNPATH instead of DT_RPATH by default
ac_default_new_dtags=unset
# Provide a configure time option to override our default.
AC_ARG_ENABLE(new_dtags,
AS_HELP_STRING([--enable-new-dtags],
[set DT_RUNPATH instead of DT_RPATH by default])],
[case "${enableval}" in
yes) ac_default_new_dtags=1 ;;
no) ac_default_new_dtags=0 ;;
esac])dnl
# Decide if -z relro should be enabled in ELF linker by default.
ac_default_ld_z_relro=unset
# Provide a configure time option to override our default.
AC_ARG_ENABLE(relro,
AS_HELP_STRING([--enable-relro],
[enable -z relro in ELF linker by default]),
[case "${enableval}" in
yes) ac_default_ld_z_relro=1 ;;
no) ac_default_ld_z_relro=0 ;;
esac])dnl
# Decide if DT_TEXTREL check should be enabled in ELF linker.
ac_default_ld_textrel_check=unset
AC_ARG_ENABLE([textrel-check],
AC_HELP_STRING([--enable-textrel-check=@<:@yes|no|warning|error@:>@],
[enable DT_TEXTREL check in ELF linker]),
[case "${enableval}" in
yes|no|warning|error) ac_default_ld_textrel_check=${enableval} ;;
esac])
# Decide if -z separate-code should be enabled in ELF linker by default.
ac_default_ld_z_separate_code=unset
AC_ARG_ENABLE(separate-code,
AS_HELP_STRING([--enable-separate-code],
[enable -z separate-code in ELF linker by default]),
[case "${enableval}" in
yes) ac_default_ld_z_separate_code=1 ;;
no) ac_default_ld_z_separate_code=0 ;;
esac])
# By default warn when an executable stack is created due to object files
# requesting such, not when the user specifies -z execstack.
ac_default_ld_warn_execstack=2
AC_ARG_ENABLE(warn-execstack,
AS_HELP_STRING([--enable-warn-execstack],
[enable warnings when creating an executable stack]),
[case "${enableval}" in
yes) ac_default_ld_warn_execstack=1 ;;
no) ac_default_ld_warn_execstack=0 ;;
esac])
ac_default_ld_warn_rwx_segments=unset
AC_ARG_ENABLE(warn-rwx-segments,
AS_HELP_STRING([--enable-warn-rwx-segments],
[enable warnings when creating segements with RWX permissions]),
[case "${enableval}" in
yes) ac_default_ld_warn_rwx_segments=1 ;;
no) ac_default_ld_warn_rwx_segments=0 ;;
esac])
ac_default_ld_default_execstack=unset
AC_ARG_ENABLE(default-execstack,
AS_HELP_STRING([--enable-default-execstack],
[create an executable stack if an input file is missing a .note.GNU-stack section]),
[case "${enableval}" in
yes) ac_default_ld_default_execstack=1 ;;
no) ac_default_ld_default_execstack=0 ;;
esac])
# Decide if --error-handling-script should be supported.
ac_support_error_handling_script=unset
AC_ARG_ENABLE(error-handling-script,
AS_HELP_STRING([--enable-error-handling-script],
[enable/disable support for the --error-handling-script option]),
[case "${enableval}" in
yes) ac_support_error_handling_script=1 ;;
no) ac_support_error_handling_script=0 ;;
esac])
# Decide which "--hash-style" to use by default
# Provide a configure time option to override our default.
AC_ARG_ENABLE([default-hash-style],
AS_HELP_STRING([--enable-default-hash-style={sysv,gnu,both}],
[use this default hash style]),
[case "${enable_default_hash_style}" in
sysv | gnu | both) ;;
*) AC_MSG_ERROR([bad value ${enable_default_hash_style} for enable-default-hash-style option]) ;;
esac],
[case "${target}" in
# Enable gnu hash only on GNU targets, but not mips
mips*-*-*) enable_default_hash_style=sysv ;;
*-*-gnu* | *-*-linux* | *-*-nacl*) enable_default_hash_style=both ;;
*) enable_default_hash_style=sysv ;;
esac])
case "${enable_default_hash_style}" in
sysv | both) ac_default_emit_sysv_hash=1 ;;
*) ac_default_emit_sysv_hash=0 ;;
esac
case "${enable_default_hash_style}" in
gnu | both) ac_default_emit_gnu_hash=1 ;;
*) ac_default_emit_gnu_hash=0 ;;
esac
AC_ARG_ENABLE(initfini-array,
[ --disable-initfini-array do not use .init_array/.fini_array sections],
[case "${enableval}" in
yes|no) ;;
*) AC_MSG_ERROR([invalid --enable-initfini-array argument]) ;;
esac], [enable_initfini_array=yes])
AC_SUBST(enable_initfini_array)
if test $enable_initfini_array = yes; then
AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
[Define .init_array/.fini_array sections are available and working.])
fi
GCC_ENABLE([libctf], [yes], [], [Handle .ctf type-info sections])
if test "${enable_libctf}" = yes; then
AC_DEFINE(ENABLE_LIBCTF, 1, [Handle .ctf type-info sections])
fi
AM_CONDITIONAL(ENABLE_LIBCTF, test "${enable_libctf}" = yes)
AC_SUBST(enable_libctf)
# Used to validate --package-metadata= input. Disabled by default.
AC_ARG_ENABLE([jansson],
[AS_HELP_STRING([--enable-jansson],
[enable jansson [default=no]])],
[enable_jansson=$enableval],
[enable_jansson="no"])
AS_IF([test "x$enable_jansson" != "xno"],
[PKG_CHECK_MODULES(JANSSON, [jansson],
[
AC_DEFINE(HAVE_JANSSON, 1, [The jansson library is to be used])
AC_SUBST([JANSSON_CFLAGS])
AC_SUBST([JANSSON_LIBS])
],
[AC_MSG_ERROR([Cannot find jansson library])])
])
AM_BINUTILS_WARNINGS
AM_LC_MESSAGES
AC_CONFIG_HEADERS([config.h:config.in])
# PR 14072
AH_VERBATIM([00_CONFIG_H_CHECK],
[/* Check that config.h is #included before system headers
(this works only for glibc, but that should be enough). */
#if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
# error config.h must be #included before system headers
#endif
#define __CONFIG_H__ 1])
if test -z "$target" ; then
AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
fi
if test -z "$host" ; then
AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
fi
# host-specific stuff:
ALL_LINGUAS="bg da de es fi fr ga id it ja pt_BR ru sr sv tr uk vi zh_CN zh_TW"
ZW_GNU_GETTEXT_SISTER_DIR
AM_PO_SUBDIRS
AC_EXEEXT
AC_PROG_YACC
AM_PROG_LEX
AM_MAINTAINER_MODE
AM_CONDITIONAL(GENINSRC_NEVER, false)
ACX_PROG_CMP_IGNORE_INITIAL
. ${srcdir}/configure.host
AC_SUBST(HDEFINES)
AC_SUBST(NATIVE_LIB_DIRS)
# We use headers from include/ that check various HAVE_*_H macros, thus
# should ensure they are set by configure. This is true even when C99
# guarantees they are available.
# sha1.h and md4.h test HAVE_LIMITS_H, HAVE_SYS_TYPES_H and HAVE_STDINT_H
# plugin-api.h tests HAVE_STDINT_H and HAVE_INTTYPES_H
# Besides those, we need to check anything used in ld/ not in C99.
AC_CHECK_HEADERS(fcntl.h elf-hints.h limits.h inttypes.h stdint.h \
sys/file.h sys/mman.h sys/param.h sys/stat.h sys/time.h \
sys/types.h unistd.h)
AC_CHECK_FUNCS(close glob lseek mkstemp open realpath waitpid)
BFD_BINARY_FOPEN
AC_CHECK_DECLS([asprintf, environ])
AC_FUNC_MMAP
AC_SEARCH_LIBS([dlopen], [dl])
AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)])
AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h)
if test $ld_cv_decl_getopt_unistd_h = yes; then
AC_DEFINE([HAVE_DECL_GETOPT], 1,
[Is the prototype for getopt in <unistd.h> in the expected format?])
fi
# Link in zlib/zstd if we can. This allows us to read and write
# compressed debug sections.
AM_ZLIB
AC_ZSTD
# When converting linker scripts into strings for use in emulation
# files, use astring.sed if the compiler supports ANSI string
# concatenation, or ostring.sed otherwise. This is to support the
# broken Microsoft MSVC compiler, which limits the length of string
# constants, while still supporting pre-ANSI compilers which do not
# support string concatenation.
AC_MSG_CHECKING([whether ANSI C string concatenation works])
AC_CACHE_VAL(ld_cv_string_concatenation,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [char *a = "a" "a";])],
ld_cv_string_concatenation=yes,
ld_cv_string_concatenation=no)])
AC_MSG_RESULT($ld_cv_string_concatenation)
if test "$ld_cv_string_concatenation" = "yes"; then
STRINGIFY=astring.sed
else
STRINGIFY=ostring.sed
fi
AC_SUBST(STRINGIFY)
# target-specific stuff:
all_targets=
EMUL=
all_emuls=
all_emul_extras=
all_libpath=
TDIRS=
elf_list_options=false
elf_shlib_list_options=false
elf_plt_unwind_list_options=false
for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
do
if test "$targ_alias" = "all"; then
all_targets=true
elf_list_options=true
elf_shlib_list_options=true
elf_plt_unwind_list_options=true
else
# Canonicalize the secondary target names.
result=`$ac_config_sub $targ_alias 2>/dev/null`
if test -n "$result"; then
targ=$result
else
targ=$targ_alias
fi
. ${srcdir}/configure.tgt
if test "$targ" = "$target"; then
EMUL=$targ_emul
fi
if test x${enable_64_bit_bfd} = xno; then
. ${srcdir}/../bfd/config.bfd
fi
if test x${enable_64_bit_bfd} = xyes; then
targ_extra_emuls="$targ_extra_emuls $targ64_extra_emuls"
targ_extra_libpath="$targ_extra_libpath $targ64_extra_libpath"
fi
for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
case " $all_emuls " in
*" e${i}.o "*) ;;
*)
all_emuls="$all_emuls e${i}.o"
eval result=\$tdir_$i
test -z "$result" && result=$targ_alias
TDIRS="$TDIRS
tdir_$i=$result"
case "${i}" in
*elf*)
elf_list_options=true
;;
*)
if $GREP "TEMPLATE_NAME=elf" ${srcdir}/emulparams/${i}.sh >/dev/null 2>/dev/null; then
elf_list_options=true
fi
;;
esac
if test "$elf_list_options" = "true"; then
source_sh()
{
. $1
}
source_sh ${srcdir}/emulparams/${i}.sh
if test x${GENERATE_SHLIB_SCRIPT} = xyes; then
elf_shlib_list_options=true
fi
if test x${PLT_UNWIND} = xyes; then
elf_plt_unwind_list_options=true
fi
fi
;;
esac
done
for i in $targ_emul $targ_extra_libpath; do
case " $all_libpath " in
*" ${i} "*) ;;
*)
if test -z "$all_libpath"; then
all_libpath=${i}
else
all_libpath="$all_libpath ${i}"
fi
;;
esac
done
for i in $targ_extra_ofiles; do
case " $all_emul_extras " in
*" ${i} "*) ;;
*)
all_emul_extras="$all_emul_extras ${i}"
;;
esac
done
fi
done
if test x$ac_default_compressed_debug_sections = xyes ; then
AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
fi
AC_DEFINE_UNQUOTED(DEFAULT_COMPRESSED_DEBUG_ALGORITHM, $ac_default_compressed_debug_sections_algorithm,
[Default compression algorithm for --enable-compressed-debug-sections.])
if test "${ac_default_new_dtags}" = unset; then
ac_default_new_dtags=0
fi
AC_DEFINE_UNQUOTED(DEFAULT_NEW_DTAGS,
$ac_default_new_dtags,
[Define to 1 if you want to set DT_RUNPATH instead of DT_RPATH by default.])
if test "${ac_default_ld_z_relro}" = unset; then
ac_default_ld_z_relro=0
fi
AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_RELRO,
$ac_default_ld_z_relro,
[Define to 1 if you want to enable -z relro in ELF linker by default.])
ac_default_ld_textrel_check_warning=0
case "${ac_default_ld_textrel_check}" in
unset|no)
ac_default_ld_textrel_check=textrel_check_none
;;
yes|warning)
ac_default_ld_textrel_check=textrel_check_warning
ac_default_ld_textrel_check_warning=1
;;
error)
ac_default_ld_textrel_check=textrel_check_error
;;
esac
AC_DEFINE_UNQUOTED(DEFAULT_LD_TEXTREL_CHECK,
$ac_default_ld_textrel_check,
[The default method for DT_TEXTREL check in ELF linker.])
AC_DEFINE_UNQUOTED(DEFAULT_LD_TEXTREL_CHECK_WARNING,
$ac_default_ld_textrel_check_warning,
[Define to 1 if DT_TEXTREL check is warning in ELF linker by default.])
if test "${ac_default_ld_z_separate_code}" = unset; then
ac_default_ld_z_separate_code=0
fi
AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_SEPARATE_CODE,
$ac_default_ld_z_separate_code,
[Define to 1 if you want to enable -z separate-code in ELF linker by default.])
AC_DEFINE_UNQUOTED(DEFAULT_LD_WARN_EXECSTACK,
$ac_default_ld_warn_execstack,
[Define to 1 if you want to enable --warn-execstack in ELF linker by default.])
if test "${ac_default_ld_warn_rwx_segments}" = unset; then
ac_default_ld_warn_rwx_segments=1
fi
AC_DEFINE_UNQUOTED(DEFAULT_LD_WARN_RWX_SEGMENTS,
$ac_default_ld_warn_rwx_segments,
[Define to 0 if you want to disable --warn-rwx-segments in ELF linker by default.])
if test "${ac_default_ld_default_execstack}" = unset; then
ac_default_ld_default_execstack=1
fi
AC_DEFINE_UNQUOTED(DEFAULT_LD_EXECSTACK,
$ac_default_ld_default_execstack,
[Define to 0 if you want to disable the generation of an executable stack when a .note-GNU-stack section is missing.])
if test "${ac_support_error_handling_script}" = unset; then
ac_support_error_handling_script=1
fi
AC_DEFINE_UNQUOTED(SUPPORT_ERROR_HANDLING_SCRIPT,
$ac_support_error_handling_script,
[Define to 1 if you want to support the --error-handling-script command line option.])
AC_DEFINE_UNQUOTED([DEFAULT_EMIT_SYSV_HASH],
[$ac_default_emit_sysv_hash],
[Define to 1 if you want to emit sysv hash in the ELF linker by default.])
AC_DEFINE_UNQUOTED([DEFAULT_EMIT_GNU_HASH],
[$ac_default_emit_gnu_hash],
[Define to 1 if you want to emit gnu hash in the ELF linker by default.])
AC_SUBST(elf_list_options)
AC_SUBST(elf_shlib_list_options)
AC_SUBST(elf_plt_unwind_list_options)
AC_SUBST(EMUL)
AC_SUBST(TDIRS)
AM_SUBST_NOTMAKE(TDIRS)
if test x${all_targets} = xtrue; then
if test x${enable_64_bit_bfd} = xyes; then
EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES) $(ALL_64_EMUL_EXTRA_OFILES)'
else
EMULATION_OFILES='$(ALL_EMULATIONS)'
EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
fi
else
EMULATION_OFILES=$all_emuls
EMUL_EXTRA_OFILES=$all_emul_extras
fi
AC_SUBST(EMULATION_OFILES)
AC_SUBST(EMUL_EXTRA_OFILES)
AC_SUBST(LIB_PATH)
EMULATION_LIBPATH=$all_libpath
AC_SUBST(EMULATION_LIBPATH)
if test x${enable_static} = xno; then
TESTBFDLIB="-Wl,--rpath,../bfd/.libs ../bfd/.libs/libbfd.so"
TESTCTFLIB="-Wl,--rpath,../libctf/.libs ../libctf/.libs/libctf.so"
TESTSFRAMELIB="-Wl,--rpath,../libsframe/.libs ../libsframe/.libs/libsframe.so"
else
TESTBFDLIB="../bfd/.libs/libbfd.a"
TESTCTFLIB="../libctf/.libs/libctf.a"
TESTSFRAMELIB="../libsframe/.libs/libsframe.a"
fi
if test "${enable_libctf}" = no; then
TESTCTFLIB=
fi
AC_SUBST(TESTBFDLIB)
AC_SUBST(TESTCTFLIB)
AC_SUBST(TESTSFRAMELIB)
target_vendor=${target_vendor=$host_vendor}
case "$target_vendor" in
hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
*) EXTRA_SHLIB_EXTENSION= ;;
esac
case "$target_os" in
lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
esac
if test x${EXTRA_SHLIB_EXTENSION} != x ; then
AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
[Additional extension a shared object might have.])
fi
AC_CONFIG_COMMANDS([default],
[[
case "$srcdir" in
.) srcdirpre= ;;
*) srcdirpre='$(srcdir)/' ;;
esac
POFILES=
GMOFILES=
for lang in dummy $OBSOLETE_ALL_LINGUAS; do
if test $lang != dummy; then
POFILES="$POFILES $srcdirpre$lang.po"
GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
fi
done
sed -e '/^SRC-POTFILES =/r po/SRC-POTFILES' \
-e '/^BLD-POTFILES =/r po/BLD-POTFILES' \
-e "s,@POFILES@,$POFILES," \
-e "s,@GMOFILES@,$GMOFILES," \
po/Makefile.in > po/Makefile]],[[]])
dnl Required by html, pdf, install-pdf and install-html
AC_SUBST(datarootdir)
AC_SUBST(docdir)
AC_SUBST(htmldir)
AC_SUBST(pdfdir)
AC_CONFIG_FILES(Makefile po/Makefile.in:po/Make-in)
AC_OUTPUT
GNU_MAKE_JOBSERVER