AC_CHECK_SIZEOF(long)
AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
+GCC_STDINT_TYPES
# ---------------------
# Warnings and checking
AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
-GCC_HEADER_STDINT(gstdint.h)
-
# These tests can't be done till we know if we have limits.h.
gcc_AC_C_CHAR_BIT
AC_C_BIGENDIAN
then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler supports .cfi_personality.])
+gcc_GAS_CHECK_FEATURE([cfi sections directive],
+ gcc_cv_as_cfi_sections_directive, ,,
+[ .text
+ .cfi_sections .debug_frame, .eh_frame
+ .cfi_startproc
+ .cfi_endproc])
+AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE,
+ [`if test $gcc_cv_as_cfi_sections_directive = yes;
+ then echo 1; else echo 0; fi`],
+ [Define 0/1 if your assembler supports .cfi_sections.])
+
# GAS versions up to and including 2.11.0 may mis-optimize
# .eh_frame data.
gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
[AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
[Define if your assembler supports the sahf mnemonic.])])
+ gcc_GAS_CHECK_FEATURE([swap suffix],
+ gcc_cv_as_ix86_swap,,,
+ [movl.s %esp, %ebp],,
+ [AC_DEFINE(HAVE_AS_IX86_SWAP, 1,
+ [Define if your assembler supports the swap suffix.])])
+
gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
gcc_cv_as_ix86_diff_sect_delta,,,
[.section .rodata
[AC_DEFINE(HAVE_AS_LWSYNC, 1,
[Define if your assembler supports LWSYNC instructions.])])
+ case $target in
+ *-*-aix*) conftest_s=' .machine "476"
+ .csect .text[[PR]]
+ dci 0';;
+ *) conftest_s=' .machine "476"
+ .text
+ dci 0';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([data cache invalidate support],
+ gcc_cv_as_powerpc_dci, [9,99,0], -a32,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_DCI, 1,
+ [Define if your assembler supports the DCI/ICI instructions.])])
+
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
[.gnu_attribute 4,1],,
.dtprelword x+0x8000],,
[AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
[Define if your assembler supports .dtprelword.])])
+
+ AC_MSG_CHECKING(assembler and linker for explicit JALR relocation)
+ gcc_cv_as_ld_jalr_reloc=no
+ if test $gcc_cv_as_mips_explicit_relocs = yes; then
+ if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 20 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_as_ld_jalr_reloc=yes
+ fi
+ elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x; then
+ echo ' .ent x' > conftest.s
+ echo 'x: ld $2,%got_disp(y)($3)' >> conftest.s
+ echo ' ld $25,%call16(y)($28)' >> conftest.s
+ echo ' .reloc 1f,R_MIPS_JALR,y' >> conftest.s
+ echo '1: jalr $25' >> conftest.s
+ echo ' .reloc 1f,R_MIPS_JALR,x' >> conftest.s
+ echo '1: jalr $25' >> conftest.s
+ 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
+ gcc_cv_as_ld_jalr_reloc=yes
+ fi
+ fi
+ rm -f conftest.*
+ fi
+ fi
+ if test $gcc_cv_as_ld_jalr_reloc = yes; then
+ if test x$target_cpu_default = x; then
+ target_cpu_default=MASK_RELAX_PIC_CALLS
+ else
+ target_cpu_default="($target_cpu_default)|MASK_RELAX_PIC_CALLS"
+ fi
+ fi
+ AC_MSG_RESULT($gcc_cv_as_ld_jalr_reloc)
+
+ AC_CACHE_CHECK([linker for .eh_frame personality relaxation],
+ [gcc_cv_ld_mips_personality_relaxation],
+ [gcc_cv_ld_mips_personality_relaxation=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_mips_personality_relaxation=yes
+ fi
+ elif test x$gcc_cv_as != x \
+ -a x$gcc_cv_ld != x \
+ -a x$gcc_cv_readelf != x ; then
+ cat > conftest.s <<EOF
+ .cfi_startproc
+ .cfi_personality 0x80,indirect_ptr
+ .ent test
+test:
+ nop
+ .end test
+ .cfi_endproc
+
+ .section .data,"aw",@progbits
+indirect_ptr:
+ .dc.a personality
+EOF
+ if $gcc_cv_as -KPIC -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -o conftest conftest.o -shared > /dev/null 2>&1; then
+ if $gcc_cv_readelf -d conftest 2>&1 \
+ | grep TEXTREL > /dev/null 2>&1; then
+ :
+ elif $gcc_cv_readelf --relocs conftest 2>&1 \
+ | grep 'R_MIPS_REL32 *$' > /dev/null 2>&1; then
+ :
+ else
+ gcc_cv_ld_mips_personality_relaxation=yes
+ fi
+ fi
+ fi
+ rm -f conftest.s conftest.o conftest])
+ if test x$gcc_cv_ld_mips_personality_relaxation = xyes; then
+ AC_DEFINE(HAVE_LD_PERSONALITY_RELAXATION, 1,
+ [Define if your linker can relax absolute .eh_frame personality
+pointers into PC-relative form.])
+ fi
;;
esac
esac],
[gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
[elf,2,19,52],,
- [.type foo, @gnu_unique_object],
+ [.type foo, @gnu_unique_object],,
# Also check for ld.so support, i.e. glibc 2.11 or higher.
[if test x$host = x$build -a x$host = x$target &&
glibcver=`ldd --version 2>/dev/null`; then
glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"`
glibcnum=`expr $glibcmajor \* 1000 + $glibcminor`
if test "$glibcnum" -ge 2011 ; then
- gcc_cv_as_gnu_unique_object=yes
+ enable_gnu_unique_object=yes
fi
- fi],
- [enable_gnu_unique_object=yes])])
+ fi])])
if test x$enable_gnu_unique_object = xyes; then
AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
[Define if your assembler supports @gnu_unique_object.])
# simply assert that glibc does provide this, which is true for all
# realistically usable GNU/Hurd configurations.
gcc_cv_libc_provides_ssp=yes;;
- *-*-darwin*)
+ *-*-darwin* | *-*-freebsd*)
AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
[echo "no __stack_chk_fail on this target"])
;;
all_compilers="$all_compilers $compilers"
all_outputs="$all_outputs $outputs"
all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
+ case ",$enable_languages," in
+ *,lto,*)
+ AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
+ enable_lto=yes
+ AC_SUBST(enable_lto)
+ ;;
+ *) ;;
+ esac
done
# Pick up gtfiles for c
AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.])
fi
+AC_ARG_VAR(LIBELFLIBS,[How to link libelf])
+AC_ARG_VAR(LIBELFINC,[How to find libelf include files])
+if test "x${LIBELFLIBS}" != "x" ; then
+ AC_DEFINE(HAVE_libelf, 1, [Define if libelf is in use.])
+fi
+
# Check for plugin support
AC_ARG_ENABLE(plugin,
[ --enable-plugin enable plugin support],
fi
# Check -ldl
- LDFLAGS="$LDFLAGS -ldl"
- AC_MSG_CHECKING([for -ldl])
- AC_TRY_LINK(
- [#include <dlfcn.h>],
- [volatile int f = 0; if (f) dlopen ("dummy", 0);],
- [AC_MSG_RESULT([yes]); have_dl=yes],
- [AC_MSG_RESULT([no])])
- if test x"$have_dl" = x"yes"; then
+ AC_SEARCH_LIBS([dlopen], [dl])
+ if test x"$ac_cv_search_dlopen" = x"-ldl"; then
pluginlibs="$pluginlibs -ldl"
fi
[extern int X;],[return X == 0;],
[AC_MSG_RESULT([yes]); have_pic_shared=yes],
[AC_MSG_RESULT([no]); have_pic_shared=no])
- if test x"$have_pic_shared" != x"yes"; then
+ if test x"$have_pic_shared" != x"yes" -o x"$ac_cv_search_dlopen" = x"no"; then
pluginlibs=
enable_plugin=no
fi
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