# Initialization and sanity checks
# --------------------------------
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
AC_INIT
AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
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
esac],
[enable_languages=c])
-# Used by documentation targets
-AC_SUBST(datarootdir)
-AC_SUBST(docdir)
-AC_SUBST(htmldir)
-
AC_ARG_WITH(multilib-list,
[ --with-multilib-list Select multilibs (SH only)],
:,
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,
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
fi
-if test $in_tree_ld != yes && test x"$ld_vers" != x; then
+if test $in_tree_ld = yes ; then
+ comdat_group=no
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ comdat_group=yes
+ fi
+elif test x"$ld_vers" != x; then
comdat_group=yes
if test 0"$ld_date" -lt 20050308; then
if test -n "$ld_date"; then
.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
[AC_DEFINE(HAVE_GAS_LCOMM_WITH_ALIGNMENT, 1,
[Define if your assembler supports .lcomm with an alignment field.])])
+AC_ARG_ENABLE(gnu-unique-object,
+ [ --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on
+ glibc systems],
+ [case $enable_gnu_unique_object in
+ yes | no) ;;
+ *) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object.
+Valid choices are 'yes' and 'no'.]) ;;
+ esac],
+ [gcc_GAS_CHECK_FEATURE([gnu_unique_object], gcc_cv_as_gnu_unique_object,
+ [elf,2,19,52],,
+ [.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
+ glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"`
+ glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"`
+ glibcnum=`expr $glibcmajor \* 1000 + $glibcminor`
+ if test "$glibcnum" -ge 2011 ; then
+ enable_gnu_unique_object=yes
+ fi
+ fi])])
+if test x$enable_gnu_unique_object = xyes; then
+ AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
+ [Define if your assembler supports @gnu_unique_object.])
+fi
+
AC_CACHE_CHECK([assembler for tolerance to line number 0],
[gcc_cv_as_line_zero],
[gcc_cv_as_line_zero=no
# simply assert that glibc does provide this, which is true for all
# realistically usable GNU/Hurd configurations.
gcc_cv_libc_provides_ssp=yes;;
- *-*-darwin*)
+ *-*-darwin* | *-*-freebsd*)
AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
[echo "no __stack_chk_fail on this target"])
;;
fi)
AC_SUBST(slibdir)
-AC_ARG_WITH(datarootdir,
-[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
-datarootdir="\${prefix}/$with_datarootdir",
-datarootdir='$(prefix)/share')
-AC_SUBST(datarootdir)
-
-AC_ARG_WITH(docdir,
-[ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
-docdir="\${prefix}/$with_docdir",
-docdir='$(datarootdir)')
-AC_SUBST(docdir)
-
-AC_ARG_WITH(htmldir,
-[ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
-htmldir="\${prefix}/$with_htmldir",
-htmldir='$(docdir)')
-AC_SUBST(htmldir)
-
# Substitute configuration variables
AC_SUBST(subdirs)
AC_SUBST(srcdir)
fi
# Check -ldl
- LDFLAGS="$LDFLAGS -ldl"
+ LIBS="$LIBS -ldl"
AC_MSG_CHECKING([for -ldl])
AC_TRY_LINK(
[#include <dlfcn.h>],