# NM
if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
&& test -d ../binutils ; then
- NM='$(objdir)/../binutils/nm-new'
+ NM='${objdir}/../binutils/nm-new'
else
AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
fi
# AR
if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
&& test -d ../binutils ; then
- AR='$(objdir)/../binutils/ar'
+ AR='${objdir}/../binutils/ar'
else
AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
fi
int main()
{
return elf_getshstrndx (NULL, 0) == 0;
-}]]), AC_DEFINE(HAVE_ELF_GETSHSTRNDX_GABI, 1,
- [Define if elf_getshstrndx has gABI conformant return values.])])])]
+}]])], AC_DEFINE(HAVE_ELF_GETSHSTRNDX_GABI, 1,
+ [Define if elf_getshstrndx has gABI conformant return values.]))])]
)
LIBS="$save_LIBS"
CPPFLAGS="$save_CPPFLAGS"
[ --enable-secureplt enable -msecure-plt by default for PowerPC],
[], [])
+AC_ARG_ENABLE(leading-mingw64-underscores,
+ AS_HELP_STRING([--enable-leading-mingw64-underscores],
+ [Enable leading underscores on 64 bit mingw targets]),
+ [],[])
+AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ],
+ [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1,
+ [Define if we should use leading underscore on 64 bit mingw targets])])
+
AC_ARG_ENABLE(cld,
[ --enable-cld enable -mcld by default for 32bit x86], [],
[enable_cld=no])
+AC_ARG_ENABLE(frame-pointer,
+[ --enable-frame-pointer enable -fno-omit-frame-pointer by default for 32bit x86], [],
+[
+case $target_os in
+linux* | darwin[[8912]]*)
+ # Enable -fomit-frame-pointer by default for Linux and Darwin with
+ # DWARF2.
+ enable_frame_pointer=no
+ ;;
+*)
+ enable_frame_pointer=yes
+ ;;
+esac
+])
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[ --disable-win32-registry
out_object_file=`basename $out_file .c`.o
tm_file_list="options.h"
-tm_include_list="options.h"
+tm_include_list="options.h insn-constants.h"
for f in $tm_file; do
case $f in
./* )
gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
[elf,2,13,0],,
[ .hidden foobar
-foobar:])
+foobar:],[
+# Solaris 9/x86 as incorrectly emits an alias for a hidden symbol with
+# STV_HIDDEN, so disable .hidden support if so.
+case "${target}" in
+ i?86-*-solaris2*)
+ if test x$gcc_cv_as != x && test x$gcc_cv_objdump != x; then
+ cat > conftest.s <<EOF
+.globl hidden
+ .hidden hidden
+hidden:
+.globl default
+ .set default,hidden
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_objdump -t conftest.o 2>/dev/null | \
+ grep '\.hidden default' > /dev/null; then
+ gcc_cv_as_hidden=no
+ else
+ gcc_cv_as_hidden=yes
+ fi
+ else
+ # Assume bug is present if objdump is missing.
+ gcc_cv_as_hidden=no
+ fi
+ ;;
+ *)
+ gcc_cv_as_hidden=yes
+ ;;
+esac])
changequote(,)dnl
if test $in_tree_ld != yes ; then
gcc_cv_ld_hidden=yes
;;
*-*-solaris2.9* | *-*-solaris2.1[0-9]*)
+ # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
+ # .symbolic was only added in Solaris 9 12/02.
gcc_cv_ld_hidden=yes
;;
*)
;;
i[34567]86-*-*)
case "$target" in
- i[34567]86-*-solaris2.[89]*)
- # TLS was introduced in the Solaris 9 4/04 release but
- # we do not enable it by default on Solaris 9 either.
- if test "x$enable_tls" = xyes ; then
- on_solaris=yes
- else
- enable_tls=no;
- fi
- ;;
i[34567]86-*-solaris2.*)
on_solaris=yes
+ tga_func=___tls_get_addr
;;
*)
on_solaris=no
;;
sparc*-*-*)
case "$target" in
- sparc*-sun-solaris2.[89]*)
- # TLS was introduced in the Solaris 9 4/04 release but
- # we do not enable it by default on Solaris 9 either.
- if test "x$enable_tls" = xyes ; then
- on_solaris=yes
- else
- enable_tls=no;
- fi
- ;;
sparc*-sun-solaris2.*)
on_solaris=yes
+ tga_func=__tls_get_addr
;;
*)
on_solaris=no
esac
if test x$on_solaris = xyes && test x$gas_flag = xno; then
conftest_s='
- .section ".tdata",#alloc,#write,#tls
-foo: .long 25
- .text
- sethi %tgd_hi22(foo), %o0
- add %o0, %tgd_lo10(foo), %o1
- add %l7, %o1, %o0, %tgd_add(foo)
- call __tls_get_addr, %tgd_call(foo)
- sethi %tldm_hi22(foo), %l1
- add %l1, %tldm_lo10(foo), %l2
- add %l7, %l2, %o0, %tldm_add(foo)
- call __tls_get_addr, %tldm_call(foo)
- sethi %tldo_hix22(foo), %l3
- xor %l3, %tldo_lox10(foo), %l4
- add %o0, %l4, %l5, %tldo_add(foo)
- sethi %tie_hi22(foo), %o3
- add %o3, %tie_lo10(foo), %o3
- ld [%l7 + %o3], %o2, %tie_ld(foo)
- add %g7, %o2, %o4, %tie_add(foo)
- sethi %tle_hix22(foo), %l1
- xor %l1, %tle_lox10(foo), %o5
- ld [%g7 + %o5], %o1'
+ .section ".tdata",#alloc,#write,#tls'
tls_first_major=0
tls_first_minor=0
else
conftest_s='
- .section ".tdata","awT",@progbits
+ .section ".tdata","awT",@progbits'
+ tls_first_major=2
+ tls_first_minor=14
+ tls_as_opt="-32 --fatal-warnings"
+ fi
+ conftest_s="$conftest_s
foo: .long 25
.text
sethi %tgd_hi22(foo), %o0
add %g7, %o2, %o4, %tie_add(foo)
sethi %tle_hix22(foo), %l1
xor %l1, %tle_lox10(foo), %o5
- ld [%g7 + %o5], %o1'
- tls_first_major=2
- tls_first_minor=14
- tls_as_opt="-32 --fatal-warnings"
- fi
+ ld [%g7 + %o5], %o1"
;;
xtensa*-*-*)
conftest_s='
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
[set_have_as_tls=yes])
fi
+case "$target" in
+ # TLS was introduced in the Solaris 9 FCS release and backported to
+ # Solaris 8 patches. Support for GNU-style TLS on x86 was only
+ # introduced in Solaris 9 4/04, replacing the earlier Sun style that Sun
+ # ld and GCC don't support any longer.
+ *-*-solaris2.*)
+ AC_MSG_CHECKING(linker and ld.so.1 TLS support)
+ ld_tls_support=no
+ # Check ld and ld.so.1 TLS support.
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Assume all interesting versions of GNU ld have TLS support.
+ # FIXME: still need ld.so.1 support, i.e. ld version checks below.
+ ld_tls_support=yes
+ else
+ case "$target" in
+ # Solaris 8/x86 ld has GNU style TLS support since version 1.280.
+ i?86-*-solaris2.8)
+ min_tls_ld_vers_minor=280
+ ;;
+ # Solaris 8/SPARC ld has TLS support since version 1.272.
+ sparc*-*-solaris2.8)
+ min_tls_ld_vers_minor=272
+ ;;
+ # Solaris 9/x86 ld has GNU style TLS support since version 1.374.
+ i?86-*-solaris2.9)
+ min_tls_ld_vers_minor=374
+ ;;
+ # Solaris 9/SPARC and Solaris 10+ ld have TLS support since FCS.
+ sparc*-*-solaris2.9 | *-*-solaris2.1[[0-9]]*)
+ min_tls_ld_vers_minor=343
+ ;;
+ esac
+ if test "$ls_vers_major" -gt 1 || \
+ test "$ld_vers_minor" -ge "$min_tls_ld_vers_minor"; then
+ ld_tls_support=yes
+ else
+ set_have_as_tls=no
+ fi
+ fi
+ AC_MSG_RESULT($ld_tls_support)
+
+ save_LIBS="$LIBS"
+ save_LDFLAGS="$LDFLAGS"
+ LIBS=
+ LDFLAGS=
+
+ AC_MSG_CHECKING(alternate thread library)
+ case "$target" in
+ # TLS support was backported to Solaris 8 patches, but only lives in
+ # the alternate thread library which became the default in Solaris 9.
+ # We want to always use that, irrespective of TLS support.
+ *-*-solaris2.8)
+ # Take multilib subdir into account. There's no spec to handle
+ # this. The 64 symlink exists since Solaris 8.
+ lwp_dir=/usr/lib/lwp
+ lwp_spec="-L$lwp_dir%{m64:/64} -R$lwp_dir%{m64:/64}"
+ LDFLAGS="-L$lwp_dir -R$lwp_dir"
+ ;;
+ *-*-solaris2*)
+ lwp_dir="none"
+ lwp_spec=""
+ ;;
+ esac
+ # Always define LIB_THREAD_LDFLAGS_SPEC, even without TLS support.
+ AC_DEFINE_UNQUOTED(LIB_THREAD_LDFLAGS_SPEC, "$lwp_spec",
+ [Define to the linker flags to use for -pthread.])
+ AC_MSG_RESULT($lwp_dir)
+
+ AC_MSG_CHECKING(library containing $tga_func)
+ # Before Solaris 10, __tls_get_addr (SPARC/x64) resp. ___tls_get_addr
+ # (32-bit x86) only lived in libthread, so check for that. Keep
+ # set_have_as_tls if found, disable if not.
+ AC_SEARCH_LIBS([$tga_func], [thread],, [set_have_as_tls=no])
+ # Clear LIBS if we cannot support TLS.
+ if test $set_have_as_tls = no; then
+ LIBS=
+ fi
+ # Always define LIB_TLS_SPEC, even without TLS support.
+ AC_DEFINE_UNQUOTED(LIB_TLS_SPEC, "$LIBS",
+ [Define to the library containing __tls_get_addr/___tls_get_addr.])
+ AC_MSG_RESULT($LIBS)
+
+ LIBS="$save_LIBS"
+ LDFLAGS="$save_LDFLAGS"
+ ;;
+esac
if test $set_have_as_tls = yes ; then
AC_DEFINE(HAVE_AS_TLS, 1,
- [Define if your assembler supports thread-local storage.])
+ [Define if your assembler and linker support thread-local storage.])
fi
# Target-specific assembler checks.
rm -f conftest],
[AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
[Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
+ # Test if the assembler supports the extended form of the .section
+ # directive that specifies section alignment. LTO support uses this,
+ # but normally only after installation, so we warn but don't fail the
+ # configure if LTO is enabled but the assembler does not support it.
+ gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
+ [2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
+ if test x$gcc_cv_as_section_has_align != xyes; then
+ case ",$enable_languages," in
+ *,lto,*)
+ AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.])
+ ;;
+ esac
+ fi
;;
esac
[AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
[Define if your assembler supports the ffreep mnemonic.])])
+ gcc_GAS_CHECK_FEATURE([.quad directive],
+ gcc_cv_as_ix86_quad,,,
+ [.quad 0],,
+ [AC_DEFINE(HAVE_AS_IX86_QUAD, 1,
+ [Define if your assembler supports the .quad directive.])])
+
gcc_GAS_CHECK_FEATURE([sahf mnemonic],
gcc_cv_as_ix86_sahf,,,
- [sahf],,
+ [.code64
+ sahf],,
[AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
- [Define if your assembler supports the sahf mnemonic.])])
+ [Define if your assembler supports the sahf mnemonic in 64bit mode.])])
gcc_GAS_CHECK_FEATURE([swap suffix],
gcc_cv_as_ix86_swap,,,
[AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
[Define if your assembler supports the subtraction of symbols in different sections.])])
- # This one is used unconditionally by i386.[ch]; it is to be defined
+ # These two are used unconditionally by i386.[ch]; it is to be defined
# to 1 if the feature is present, 0 otherwise.
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
[`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
[Define true if the assembler supports '.long foo@GOTOFF'.])
+
+ gcc_GAS_CHECK_FEATURE([rep and lock prefix],
+ gcc_cv_as_ix86_rep_lock_prefix,,,
+ [rep movsl
+ lock addl %edi, (%eax,%esi)
+ lock orl $0, (%esp)],,
+ [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
+ [Define if the assembler supports 'rep <insn>, lock <insn>'.])])
+
;;
ia64*-*-*)
echo ' .end x' >> conftest.s
if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \
&& $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then
- if $gcc_cv_objdump -d conftest.so | grep -q jalr \
- && $gcc_cv_objdump -d conftest.so | grep -q "bal.*<x>"; then
+ if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \
+ && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then
gcc_cv_as_ld_jalr_reloc=yes
fi
fi
if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
| grep "gc-sections option ignored" > /dev/null; then
gcc_cv_ld_eh_gc_sections=no
- elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
# If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
if test x$gcc_cv_as_comdat_group != xyes; then
if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
| grep "gc-sections option ignored" > /dev/null; then
gcc_cv_ld_eh_gc_sections=no
- elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
fi
fi
AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
[Define if your PowerPC64 linker only needs function descriptor syms.])
fi
+
+ AC_CACHE_CHECK(linker large toc support,
+ gcc_cv_ld_large_toc,
+ [gcc_cv_ld_large_toc=no
+ if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
+ gcc_cv_ld_large_toc=yes
+ fi
+ elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
+ cat > conftest.s <<EOF
+ .section ".tbss","awT",@nobits
+ .align 3
+ie0: .space 8
+ .global _start
+ .text
+_start:
+ addis 9,13,ie0@got@tprel@ha
+ ld 9,ie0@got@tprel@l(9)
+EOF
+ if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -melf64ppc --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+ gcc_cv_ld_large_toc=yes
+ fi
+ rm -f conftest conftest.o conftest.s
+ fi
+ ])
+ if test x"$gcc_cv_ld_large_toc" = xyes; then
+ AC_DEFINE(HAVE_LD_LARGE_TOC, 1,
+ [Define if your PowerPC64 linker supports a large TOC.])
+ fi
;;
esac
fi
fi
+# In binutils 2.21, GNU ld gained support for new emulations fully
+# supporting the Solaris 2 ABI. Detect their presence in the linker used.
+AC_CACHE_CHECK(linker *_sol2 emulation support,
+ gcc_cv_ld_sol2_emulation,
+ [gcc_cv_ld_sol2_emulation=no
+ if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a \
+ "$gcc_cv_gld_minor_version" -ge 21 -o \
+ "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_sol2_emulation=yes
+ fi
+ elif test x$gcc_cv_ld != x; then
+ if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \
+ grep _sol2 > /dev/null; then
+ gcc_cv_ld_sol2_emulation=yes
+ fi
+ fi])
+if test x"$gcc_cv_ld_sol2_emulation" = xyes; then
+ AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1,
+ [Define if your linker supports the *_sol2 emulations.])
+fi
+
AC_CACHE_CHECK(linker --sysroot support,
gcc_cv_ld_sysroot,
[gcc_cv_ld_sysroot=no
all_outputs='Makefile gccbug'
# List of language makefile fragments.
all_lang_makefrags=
-# List of language subdirectory makefiles. Deprecated.
-all_lang_makefiles=
# Additional files for gengtype
all_gtfiles="$target_gtfiles"
if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
fi
- if test -f ${srcdir}/$gcc_subdir/Makefile.in
- then all_lang_makefiles="$gcc_subdir/Makefile"
- fi
all_languages="$all_languages $language"
all_compilers="$all_compilers $compilers"
all_outputs="$all_outputs $outputs"
AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
enable_lto=yes
AC_SUBST(enable_lto)
+ # LTO needs to speak the platform's object file format, and has a
+ # number of implementations of the required binary file access APIs.
+ # ELF is the most common, and default. We only link libelf if ELF
+ # is indeed the selected format.
+ LTO_BINARY_READER=${lto_binary_reader}
+ LTO_USE_LIBELF=-lelf
+ if test "x$lto_binary_reader" != "xlto-elf" ; then
+ LTO_USE_LIBELF=
+ fi
+ AC_SUBST(LTO_BINARY_READER)
+ AC_SUBST(LTO_USE_LIBELF)
;;
*) ;;
esac
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
AC_SUBST(all_lang_makefrags)
-AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages)
AC_SUBST(all_selected_languages)
AC_SUBST(build_exeext)
AC_SUBST(TM_MULTILIB_CONFIG)
AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
AC_SUBST(extra_gcc_objs)
+AC_SUBST(user_headers_inc_next_pre)
+AC_SUBST(user_headers_inc_next_post)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
AC_SUBST(extra_parts)
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
+ case "${host}" in
+ *-*-darwin*)
+ export_sym_check="$gcc_cv_nm -g"
+ ;;
+ *)
+ export_sym_check="$gcc_cv_objdump -T"
+ ;;
+ esac
AC_MSG_CHECKING([for exported symbols])
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
: # No need to use a flag
else
AC_MSG_CHECKING([for -rdynamic])
${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
plugin_rdynamic=yes
pluginlibs="-rdynamic"
else
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -fPIC -shared"
+ case "${host}" in
+ *-*-darwin*)
+ LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
+ ;;
+ *)
+ LDFLAGS="$LDFLAGS -fPIC -shared"
+ ;;
+ esac
AC_MSG_CHECKING([for -fPIC -shared])
AC_TRY_LINK(
[extern int X;],[return X == 0;],
echo > cstamp-h ;;
esac
# Make sure all the subdirs exist.
-for d in $subdirs doc build
+for d in $subdirs doc build c-family
do
test -d $d || mkdir $d
done