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-rw-r--r--libffi/configure.ac319
1 files changed, 81 insertions, 238 deletions
diff --git a/libffi/configure.ac b/libffi/configure.ac
index 97d2641..07ec10d 100644
--- a/libffi/configure.ac
+++ b/libffi/configure.ac
@@ -2,7 +2,7 @@ dnl Process this with autoconf to create configure
AC_PREREQ(2.64)
-AC_INIT([libffi], [3.0.11], [http://gcc.gnu.org/bugs.html])
+AC_INIT([libffi], [3.99999], [http://github.com/atgreen/libffi/issues])
AC_CONFIG_HEADERS([fficonfig.h])
AM_ENABLE_MULTILIB(, ..)
@@ -10,8 +10,6 @@ AM_ENABLE_MULTILIB(, ..)
AC_CANONICAL_SYSTEM
target_alias=${target_alias-$host_alias}
-. ${srcdir}/configure.host
-
AM_INIT_AUTOMAKE([no-dist])
# See if makeinfo has been installed and is modern enough
@@ -43,10 +41,16 @@ AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes)
# We must force CC to /not/ be precious variables; otherwise
# the wrong, non-multilib-adjusted value will be used in multilibs.
# As a side effect, we have to subst CFLAGS ourselves.
+# Also save and restore CFLAGS, since AC_PROG_CC will come up with
+# defaults of its own if none are provided.
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
+save_CFLAGS=$CFLAGS
AC_PROG_CC
+AC_PROG_CXX
+CFLAGS=$save_CFLAGS
+m4_undefine([_AC_ARG_VAR_PRECIOUS])
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AC_SUBST(CFLAGS)
@@ -55,10 +59,13 @@ AM_PROG_AS
AM_PROG_CC_C_O
AC_PROG_LIBTOOL
+# Test for 64-bit build.
+AC_CHECK_SIZEOF([size_t])
+
AM_MAINTAINER_MODE
AC_CHECK_HEADERS(sys/mman.h)
-AC_CHECK_FUNCS(mmap)
+AC_CHECK_FUNCS([mmap mkostemp])
AC_FUNC_MMAP_BLACKLIST
dnl The -no-testsuite modules omit the test subdir.
@@ -66,205 +73,15 @@ AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
TARGETDIR="unknown"
HAVE_LONG_DOUBLE_VARIANT=0
-case "$host" in
- aarch64*-*-*)
- TARGET=AARCH64; TARGETDIR=aarch64
- ;;
-
- alpha*-*-*)
- TARGET=ALPHA; TARGETDIR=alpha;
- # Support 128-bit long double, changeable via command-line switch.
- HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
- ;;
-
- arm*-*-*)
- TARGET=ARM; TARGETDIR=arm
- ;;
-
- amd64-*-freebsd* | amd64-*-openbsd*)
- TARGET=X86_64; TARGETDIR=x86
- ;;
-
- amd64-*-freebsd*)
- TARGET=X86_64; TARGETDIR=x86
- ;;
-
- avr32*-*-*)
- TARGET=AVR32; TARGETDIR=avr32
- ;;
-
- bfin*)
- TARGET=BFIN; TARGETDIR=bfin
- ;;
-
- cris-*-*)
- TARGET=LIBFFI_CRIS; TARGETDIR=cris
- ;;
-
- frv-*-*)
- TARGET=FRV; TARGETDIR=frv
- ;;
-
- hppa*-*-linux* | parisc*-*-linux* | hppa*-*-openbsd*)
- TARGET=PA_LINUX; TARGETDIR=pa
- ;;
- hppa*64-*-hpux*)
- TARGET=PA64_HPUX; TARGETDIR=pa
- ;;
- hppa*-*-hpux*)
- TARGET=PA_HPUX; TARGETDIR=pa
- ;;
-
- i?86-*-freebsd* | i?86-*-openbsd*)
- TARGET=X86_FREEBSD; TARGETDIR=x86
- ;;
- i?86-win32* | i?86-*-cygwin* | i?86-*-mingw* | i?86-*-os2* | i?86-*-interix*)
- TARGET=X86_WIN32; TARGETDIR=x86
- # All mingw/cygwin/win32 builds require -no-undefined for sharedlib.
- # We must also check with_cross_host to decide if this is a native
- # or cross-build and select where to install dlls appropriately.
- if test -n "$with_cross_host" &&
- test x"$with_cross_host" != x"no"; then
- AM_LTLDFLAGS='-no-undefined -bindir "$(toolexeclibdir)"';
- else
- AM_LTLDFLAGS='-no-undefined -bindir "$(bindir)"';
- fi
- ;;
- i?86-*-darwin*)
- TARGET=X86_DARWIN; TARGETDIR=x86
- ;;
- i?86-*-solaris2.1[[0-9]]*)
- TARGET=X86_64; TARGETDIR=x86
- ;;
- i?86-*-*)
- TARGET=X86_64; TARGETDIR=x86
- ;;
-
- ia64*-*-*)
- TARGET=IA64; TARGETDIR=ia64
- ;;
-
- m32r*-*-*)
- TARGET=M32R; TARGETDIR=m32r
- ;;
-
- m68k-*-*)
- TARGET=M68K; TARGETDIR=m68k
- ;;
-
- mips-sgi-irix5.* | mips-sgi-irix6.* | mips*-*-rtems*)
- TARGET=MIPS; TARGETDIR=mips
- ;;
- mips*-*-linux* | mips*-*-openbsd*)
- # Support 128-bit long double for NewABI.
- HAVE_LONG_DOUBLE='defined(__mips64)'
- TARGET=MIPS; TARGETDIR=mips
- ;;
-
- powerpc*-*-linux* | powerpc-*-sysv*)
- TARGET=POWERPC; TARGETDIR=powerpc
- HAVE_LONG_DOUBLE_VARIANT=1
- ;;
- powerpc-*-amigaos*)
- TARGET=POWERPC; TARGETDIR=powerpc
- ;;
- powerpc-*-beos*)
- TARGET=POWERPC; TARGETDIR=powerpc
- ;;
- powerpc-*-darwin* | powerpc64-*-darwin*)
- TARGET=POWERPC_DARWIN; TARGETDIR=powerpc
- ;;
- powerpc-*-aix* | rs6000-*-aix*)
- TARGET=POWERPC_AIX; TARGETDIR=powerpc
- ;;
- powerpc-*-freebsd* | powerpc-*-openbsd*)
- TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc
- HAVE_LONG_DOUBLE_VARIANT=1
- ;;
- powerpc64-*-freebsd*)
- TARGET=POWERPC; TARGETDIR=powerpc
- ;;
- powerpc*-*-rtems*)
- TARGET=POWERPC; TARGETDIR=powerpc
- ;;
-
- s390-*-* | s390x-*-*)
- TARGET=S390; TARGETDIR=s390
- ;;
-
- sh-*-* | sh[[34]]*-*-*)
- TARGET=SH; TARGETDIR=sh
- ;;
- sh64-*-* | sh5*-*-*)
- TARGET=SH64; TARGETDIR=sh64
- ;;
-
- sparc*-*-*)
- TARGET=SPARC; TARGETDIR=sparc
- ;;
-
- tile*-*)
- TARGET=TILE; TARGETDIR=tile
- ;;
-
- x86_64-*-darwin*)
- TARGET=X86_DARWIN; TARGETDIR=x86
- ;;
-
- x86_64-*-cygwin* | x86_64-*-mingw*)
- TARGET=X86_WIN64; TARGETDIR=x86
- # All mingw/cygwin/win32 builds require -no-undefined for sharedlib.
- # We must also check with_cross_host to decide if this is a native
- # or cross-build and select where to install dlls appropriately.
- if test -n "$with_cross_host" &&
- test x"$with_cross_host" != x"no"; then
- AM_LTLDFLAGS='-no-undefined -bindir "$(toolexeclibdir)"';
- else
- AM_LTLDFLAGS='-no-undefined -bindir "$(bindir)"';
- fi
- ;;
-
- x86_64-*-*)
- TARGET=X86_64; TARGETDIR=x86
- ;;
-esac
-AC_SUBST(AM_RUNTESTFLAGS)
-AC_SUBST(AM_LTLDFLAGS)
+. ${srcdir}/configure.host
-if test $TARGETDIR = unknown; then
+if test -n "${UNSUPPORTED}"; then
AC_MSG_ERROR(["libffi has not been ported to $host."])
fi
-AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
-AM_CONDITIONAL(BFIN, test x$TARGET = xBFIN)
-AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
-AM_CONDITIONAL(X86, test x$TARGET = xX86)
-AM_CONDITIONAL(X86_FREEBSD, test x$TARGET = xX86_FREEBSD)
-AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
-AM_CONDITIONAL(X86_WIN64, test x$TARGET = xX86_WIN64)
-AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN)
-AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
-AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
-AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
-AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
-AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
-AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
-AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
-AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD)
-AM_CONDITIONAL(AARCH64, test x$TARGET = xAARCH64)
-AM_CONDITIONAL(ARM, test x$TARGET = xARM)
-AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32)
-AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS)
-AM_CONDITIONAL(FRV, test x$TARGET = xFRV)
-AM_CONDITIONAL(S390, test x$TARGET = xS390)
-AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
-AM_CONDITIONAL(SH, test x$TARGET = xSH)
-AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
-AM_CONDITIONAL(PA_LINUX, test x$TARGET = xPA_LINUX)
-AM_CONDITIONAL(PA_HPUX, test x$TARGET = xPA_HPUX)
-AM_CONDITIONAL(PA64_HPUX, test x$TARGET = xPA64_HPUX)
-AM_CONDITIONAL(TILE, test x$TARGET = xTILE)
+AC_SUBST(AM_RUNTESTFLAGS)
+AC_SUBST(AM_LTLDFLAGS)
AC_HEADER_STDC
AC_CHECK_FUNCS(memcpy)
@@ -295,15 +112,6 @@ AC_C_BIGENDIAN
GCC_AS_CFI_PSEUDO_OP
-AC_CACHE_CHECK([if compiler supports -Qunused-arguments],
-[libffi_cv_c_unused_arguments],
-[CFLAGS_hold=$CFLAGS
-CFLAGS="$CFLAGS -Qunused-arguments"
-AC_COMPILE_IFELSE([[int i;]],
-[libffi_cv_c_unused_arguments=yes],
-[libffi_cv_c_unused_arguments=no])
-CFLAGS=$CFLAGS_hold])
-
if test x$TARGET = xSPARC; then
AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
libffi_cv_as_sparc_ua_pcrel, [
@@ -325,7 +133,7 @@ if test x$TARGET = xSPARC; then
libffi_cv_as_register_pseudo_op, [
libffi_cv_as_register_pseudo_op=unknown
# Check if we have .register
- AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
+ AC_TRY_COMPILE(,[asm (".register %g2, #scratch");],
[libffi_cv_as_register_pseudo_op=yes],
[libffi_cv_as_register_pseudo_op=no])
])
@@ -338,16 +146,11 @@ fi
if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64; then
AC_CACHE_CHECK([assembler supports pc related relocs],
libffi_cv_as_x86_pcrel, [
- libffi_cv_as_x86_pcrel=yes
+ libffi_cv_as_x86_pcrel=no
echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
- CFLAGS_hold=$CFLAGS
- if test "$libffi_cv_c_unused_arguments" = yes; then
- CFLAGS="$CFLAGS -Qunused-arguments"
- fi
- if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then
- libffi_cv_as_x86_pcrel=no
+ if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then
+ libffi_cv_as_x86_pcrel=yes
fi
- CFLAGS=$CFLAGS_hold
])
if test "x$libffi_cv_as_x86_pcrel" = xyes; then
AC_DEFINE(HAVE_AS_X86_PCREL, 1,
@@ -358,7 +161,7 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64
libffi_cv_as_ascii_pseudo_op, [
libffi_cv_as_ascii_pseudo_op=unknown
# Check if we have .ascii
- AC_TRY_COMPILE([asm (".ascii \\"string\\"");],,
+ AC_TRY_COMPILE(,[asm (".ascii \\"string\\"");],
[libffi_cv_as_ascii_pseudo_op=yes],
[libffi_cv_as_ascii_pseudo_op=no])
])
@@ -371,7 +174,7 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64
libffi_cv_as_string_pseudo_op, [
libffi_cv_as_string_pseudo_op=unknown
# Check if we have .string
- AC_TRY_COMPILE([asm (".string \\"string\\"");],,
+ AC_TRY_COMPILE(,[asm (".string \\"string\\"");],
[libffi_cv_as_string_pseudo_op=yes],
[libffi_cv_as_string_pseudo_op=no])
])
@@ -381,6 +184,23 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64
fi
fi
+if test x$TARGET = xS390; then
+ AC_CACHE_CHECK([compiler uses zarch features],
+ libffi_cv_as_s390_zarch, [
+ libffi_cv_as_s390_zarch=no
+ echo 'void foo(void) { bar(); bar(); }' > conftest.c
+ if $CC $CFLAGS -S conftest.c > /dev/null 2>&1; then
+ if grep -q brasl conftest.s; then
+ libffi_cv_as_s390_zarch=yes
+ fi
+ fi
+ ])
+ if test "x$libffi_cv_as_s390_zarch" = xyes; then
+ AC_DEFINE(HAVE_AS_S390_ZARCH, 1,
+ [Define if the compiler uses zarch features.])
+ fi
+fi
+
# On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC.
AC_ARG_ENABLE(pax_emutramp,
[ --enable-pax_emutramp enable pax emulated trampolines, for we can't use PROT_EXEC],
@@ -407,18 +227,29 @@ AM_CONDITIONAL(FFI_EXEC_TRAMPOLINE_TABLE, test x$FFI_EXEC_TRAMPOLINE_TABLE = x1)
AC_SUBST(FFI_EXEC_TRAMPOLINE_TABLE)
if test x$TARGET = xX86_64; then
- AC_CACHE_CHECK([assembler supports unwind section type],
+ AC_CACHE_CHECK([toolchain supports unwind section type],
libffi_cv_as_x86_64_unwind_section_type, [
- libffi_cv_as_x86_64_unwind_section_type=yes
- echo '.section .eh_frame,"a",@unwind' > conftest.s
- CFLAGS_hold=$CFLAGS
- if test "$libffi_cv_c_unused_arguments" = yes; then
- CFLAGS="$CFLAGS -Qunused-arguments"
- fi
- if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then
- libffi_cv_as_x86_64_unwind_section_type=no
+ cat > conftest1.s << EOF
+.text
+.globl foo
+foo:
+jmp bar
+.section .eh_frame,"a",@unwind
+bar:
+EOF
+
+ cat > conftest2.c << EOF
+extern void foo();
+int main(){foo();}
+EOF
+
+ libffi_cv_as_x86_64_unwind_section_type=no
+ # we ensure that we can compile _and_ link an assembly file containing an @unwind section
+ # since the compiler can support it and not the linker (ie old binutils)
+ if $CC -Wa,--fatal-warnings $CFLAGS -c conftest1.s > /dev/null 2>&1 && \
+ $CC conftest2.c conftest1.o > /dev/null 2>&1 ; then
+ libffi_cv_as_x86_64_unwind_section_type=yes
fi
- CFLAGS=$CFLAGS_hold
])
if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then
AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1,
@@ -431,13 +262,16 @@ if test "x$GCC" = "xyes"; then
libffi_cv_ro_eh_frame, [
libffi_cv_ro_eh_frame=no
echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
- if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
- if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
- libffi_cv_ro_eh_frame=yes
- elif grep '.section.*eh_frame.*#alloc' conftest.c \
- | grep -v '#write' > /dev/null; then
- libffi_cv_ro_eh_frame=yes
- fi
+ if $CC $CFLAGS -c -fpic -fexceptions -o conftest.o conftest.c > /dev/null 2>&1; then
+ objdump -h conftest.o > conftest.dump 2>&1
+ libffi_eh_frame_line=`grep -n eh_frame conftest.dump | cut -d: -f 1`
+ if test "x$libffi_eh_frame_line" != "x"; then
+ libffi_test_line=`expr $libffi_eh_frame_line + 1`p
+ sed -n $libffi_test_line conftest.dump > conftest.line
+ if grep READONLY conftest.line > /dev/null; then
+ libffi_cv_ro_eh_frame=yes
+ fi
+ fi
fi
rm -f conftest.*
])
@@ -487,6 +321,14 @@ AH_BOTTOM([
AC_SUBST(TARGET)
AC_SUBST(TARGETDIR)
+changequote(<,>)
+TARGET_OBJ=
+for i in $SOURCES; do
+ TARGET_OBJ="${TARGET_OBJ} src/${TARGETDIR}/"`echo $i | sed 's/[cS]$/lo/'`
+done
+changequote([,])
+AC_SUBST(TARGET_OBJ)
+
AC_SUBST(SHELL)
AC_ARG_ENABLE(debug,
@@ -499,13 +341,14 @@ AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes")
AC_ARG_ENABLE(structs,
[ --disable-structs omit code for struct support],
if test "$enable_structs" = "no"; then
- AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
+ AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this if you do not want support for aggregate types.])
fi)
+AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes")
AC_ARG_ENABLE(raw-api,
[ --disable-raw-api make the raw api unavailable],
if test "$enable_raw_api" = "no"; then
- AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
+ AC_DEFINE(FFI_NO_RAW_API, 1, [Define this if you do not want support for the raw API.])
fi)
AC_ARG_ENABLE(purify-safety,
@@ -544,6 +387,6 @@ test -d src/$TARGETDIR || mkdir src/$TARGETDIR
AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)
-AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile)
+AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile libffi.pc)
AC_OUTPUT
generated by cgit v1.1 at 2025-09-27 06:22:48 +0000