stage1_cflags="-J"
fi
;;
-powerpc-*-darwin*)
+powerpc*-*-darwin*)
# The spiffy cpp-precomp chokes on some legitimate constructs in GCC
# sources; use -no-cpp-precomp to get to GNU cpp.
# Apple's GCC has bugs in designated initializer handling, so disable
fi
case ${host} in
- powerpc-*-darwin*)
+ powerpc*-*-darwin*)
AC_CACHE_CHECK([whether mcontext_t fields have underscores],
gcc_cv_mcontext_underscores,
AC_COMPILE_IFELSE([
if test x$enable___cxa_atexit = xyes || \
test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
if test x$host = x$target; then
- AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
- [echo "__cxa_atexit can't be enabled on this target"])
+ case $host in
+ # mingw32 doesn't have __cxa_atexit but uses atexit registration
+ # keyed to flag_use_cxa_atexit
+ *-*-mingw32*)
+ use_cxa_atexit=yes
+ ;;
+ *)
+ AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
+ [echo "__cxa_atexit can't be enabled on this target"])
+ ;;
+ esac
else
# We can't check for __cxa_atexit when building a cross, so assume
# it is available
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
- -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ -].*$,\1,p'`
ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
[AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
[Define if your assembler supports the ffreep mnemonic.])])
+ gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
+ gcc_cv_as_ix86_diff_sect_delta,,,
+ [.section .rodata
+.L1:
+ .long .L2-.L1
+ .long .L3-.L1
+ .text
+.L3: nop
+.L2: nop],,
+ [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
# to 1 if the feature is present, 0 otherwise.
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
[Define if your assembler supports fprnd.])])
case $target in
+ *-*-aix*) conftest_s=' .machine "pwr6"
+ .csect .text[[PR]]
+ mffgpr 1,3';;
+ *) conftest_s=' .machine power6
+ .text
+ mffgpr 1,3';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([move fp gpr support],
+ gcc_cv_as_powerpc_mfpgpr, [9,99,0],,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_MFPGPR, 1,
+ [Define if your assembler supports mffgpr and mftgpr.])])
+
+ case $target in
*-*-aix*) conftest_s=' .csect .text[[PR]]
LCF..0:
addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
then target_cpu_default=MASK_EXPLICIT_RELOCS
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
fi])
+ gcc_GAS_CHECK_FEATURE([-mno-shared support],
+ gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
+ [AC_DEFINE(HAVE_AS_NO_SHARED, 1,
+ [Define if the assembler understands -mno-shared.])])
;;
esac
case "$target" in
i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
| x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
- | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
+ | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-* | score*-*-*)
insn="nop"
;;
ia64*-*-* | s390*-*-*)
fi
AC_MSG_RESULT($gcc_cv_ld_pie)
+AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
+gcc_cv_ld_eh_gc_sections=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_eh_gc_sections=yes
+ fi
+elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
+ cat > conftest.s <<EOF
+ .section .text
+.globl _start
+ .type _start, @function
+_start:
+ .long foo
+ .size _start, .-_start
+ .section .text.foo,"ax",@progbits
+ .type foo, @function
+foo:
+ .long 0
+ .size foo, .-foo
+ .section .gcc_except_table.foo,"a",@progbits
+.L0:
+ .long 0
+ .section .eh_frame,"a",@progbits
+ .long .L0
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; 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 $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ gcc_cv_ld_eh_gc_sections=yes
+ fi
+ fi
+ rm -f conftest.s conftest.o conftest
+fi
+if test x$gcc_cv_ld_eh_gc_sections = xyes; then
+ AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
+ [Define if your linker supports garbage collection of
+ sections in presence of EH frames.])
+fi
+AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
+
# --------
# UNSORTED
# --------
fi
if test x$with_sysroot = x && test x$host = x$target \
- && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
+ && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
+ && test "$prefix" != "NONE"; then
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
[Define to PREFIX/include if cpp should also search that directory.])
fi
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