Index: libffi/ChangeLog =================================================================== --- libffi.orig/ChangeLog +++ libffi/ChangeLog @@ -3,6 +3,14 @@ * src/powerpc/linux64_closure.S: Add new ABI support. * src/powerpc/linux64.S: Likewise. +2012-10-30 Magnus Granberg + Pavel Labushev + + * configure.ac: New options pax_emutramp + * configure, fficonfig.h.in: Regenerated + * src/closures.c: New function emutramp_enabled_check() and + checks. + 2012-10-30 Frederick Cheung * configure.ac: Enable FFI_MAP_EXEC_WRIT for Darwin 12 (mountain @@ -27,7 +35,7 @@ * testsuite/libffi.call/cls_struct_va1.c: New. * testsuite/libffi.call/cls_uchar_va.c: Likewise. * testsuite/libffi.call/cls_uint_va.c: Likewise. - * testsuite/libffi.call/cls_ulong_va.c: Liekwise. + * testsuite/libffi.call/cls_ulong_va.c: Likewise. * testsuite/libffi.call/cls_ushort_va.c: Likewise. * testsuite/libffi.call/nested_struct11.c: Likewise. * testsuite/libffi.call/uninitialized.c: Likewise. Index: libffi/README =================================================================== --- libffi.orig/README +++ libffi/README @@ -154,6 +154,7 @@ See the ChangeLog files for details. Add Blackfin support. Add TILE-Gx/TILEPro support. Add AArch64 support. + Add support for PaX enabled kernels with MPROTECT. 3.0.11 Apr-11-12 Lots of build fixes. Index: libffi/configure =================================================================== --- libffi.orig/configure +++ libffi/configure @@ -828,6 +828,7 @@ enable_libtool_lock enable_portable_binary with_gcc_arch enable_maintainer_mode +enable_pax_emutramp enable_debug enable_structs enable_raw_api @@ -1475,6 +1476,7 @@ Optional Features: unportable binaries --enable-maintainer-mode enable make rules and dependencies not useful (and sometimes confusing) to the casual installer + --enable-pax_emutramp enable pax emulated trampolines, for we can't use PROT_EXEC --enable-debug debugging mode --disable-structs omit code for struct support --disable-raw-api make the raw api unavailable @@ -1483,7 +1485,7 @@ Optional Features: Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) - --with-pic[=PKGS] try to use only PIC/non-PIC objects [default=use + --with-pic try to use only PIC/non-PIC objects [default=use both] --with-gnu-ld assume the C compiler uses GNU ld [default=no] --with-sysroot=DIR Search for dependent libraries within DIR @@ -5284,11 +5286,6 @@ else lt_cv_sys_max_cmd_len=196608 ;; - os2*) - # The test takes a long time on OS/2. - lt_cv_sys_max_cmd_len=8192 - ;; - osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not @@ -5328,7 +5325,7 @@ else # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. - while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \ + while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test $i != 17 # 1/2 MB should be enough do @@ -5757,7 +5754,7 @@ irix5* | irix6* | nonstopux*) lt_cv_deplibs_check_method=pass_all ;; -# This must be glibc/ELF. +# This must be Linux ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu) lt_cv_deplibs_check_method=pass_all ;; @@ -6398,13 +6395,13 @@ old_postuninstall_cmds= if test -n "$RANLIB"; then case $host_os in openbsd*) - old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib" ;; *) - old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" + old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib" ;; esac - old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" + old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib" fi case $host_os in @@ -6551,7 +6548,6 @@ for ac_symprfx in "" "_"; do # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK '"\ " {last_section=section; section=\$ 3};"\ -" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ @@ -6856,7 +6852,14 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux* LD="${LD-ld} -m elf_i386_fbsd" ;; x86_64-*linux*) - LD="${LD-ld} -m elf_i386" + case `/usr/bin/file conftest.o` in + *x86-64*) + LD="${LD-ld} -m elf32_x86_64" + ;; + *) + LD="${LD-ld} -m elf_i386" + ;; + esac ;; ppc64-*linux*|powerpc64-*linux*) LD="${LD-ld} -m elf32ppclinux" @@ -6940,7 +6943,7 @@ $as_echo "$lt_cv_cc_needs_belf" >&6; } CFLAGS="$SAVE_CFLAGS" fi ;; -*-*solaris*) +sparc*-*solaris*) # Find out which ABI we are using. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 @@ -6951,20 +6954,7 @@ $as_echo "$lt_cv_cc_needs_belf" >&6; } case `/usr/bin/file conftest.o` in *64-bit*) case $lt_cv_prog_gnu_ld in - yes*) - case $host in - i?86-*-solaris*) - LD="${LD-ld} -m elf_x86_64" - ;; - sparc*-*-solaris*) - LD="${LD-ld} -m elf64_sparc" - ;; - esac - # GNU ld 2.21 introduced _sol2 emulations. Use them if available. - if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then - LD="${LD-ld}_sol2" - fi - ;; + yes*) LD="${LD-ld} -m elf64_sparc" ;; *) if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then LD="${LD-ld} -64" @@ -7604,13 +7594,7 @@ else $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c 2>conftest.err _lt_result=$? - # If there is a non-empty error log, and "single_module" - # appears in it, assume the flag caused a linker warning - if test -s conftest.err && $GREP single_module conftest.err; then - cat conftest.err >&5 - # Otherwise, if the output was created with a 0 exit code from - # the compiler, it worked. - elif test -f libconftest.dylib && test $_lt_result -eq 0; then + if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then lt_cv_apple_cc_single_mod=yes else cat conftest.err >&5 @@ -7621,7 +7605,6 @@ else fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 $as_echo "$lt_cv_apple_cc_single_mod" >&6; } - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 $as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } if ${lt_cv_ld_exported_symbols_list+:} false; then : @@ -7654,7 +7637,6 @@ rm -f core conftest.err conftest.$ac_obj fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 $as_echo "$lt_cv_ld_exported_symbols_list" >&6; } - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 $as_echo_n "checking for -force_load linker flag... " >&6; } if ${lt_cv_ld_force_load+:} false; then : @@ -7676,9 +7658,7 @@ _LT_EOF echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err _lt_result=$? - if test -s conftest.err && $GREP force_load conftest.err; then - cat conftest.err >&5 - elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then + if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then lt_cv_ld_force_load=yes else cat conftest.err >&5 @@ -8083,22 +8063,7 @@ fi # Check whether --with-pic was given. if test "${with_pic+set}" = set; then : - withval=$with_pic; lt_p=${PACKAGE-default} - case $withval in - yes|no) pic_mode=$withval ;; - *) - pic_mode=default - # Look at the argument we got. We use all the common list separators. - lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," - for lt_pkg in $withval; do - IFS="$lt_save_ifs" - if test "X$lt_pkg" = "X$lt_p"; then - pic_mode=yes - fi - done - IFS="$lt_save_ifs" - ;; - esac + withval=$with_pic; pic_mode="$withval" else pic_mode=default fi @@ -8176,10 +8141,6 @@ LIBTOOL='$(SHELL) $(top_builddir)/libtoo - - - - test -z "$LN_S" && LN_S="ln -s" @@ -8469,6 +8430,10 @@ _lt_linker_boilerplate=`cat conftest.err $RM -r conftest* +## CAVEAT EMPTOR: +## There is no encapsulation within the following macros, do not change +## the running order or otherwise move them around unless you know exactly +## what you are doing... if test -n "$compiler"; then lt_prog_compiler_no_builtin_flag= @@ -8635,9 +8600,7 @@ lt_prog_compiler_static= case $cc_basename in nvcc*) # Cuda Compiler Driver 2.2 lt_prog_compiler_wl='-Xlinker ' - if test -n "$lt_prog_compiler_pic"; then - lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic" - fi + lt_prog_compiler_pic='-Xcompiler -fPIC' ;; esac else @@ -8728,33 +8691,18 @@ lt_prog_compiler_static= ;; *) case `$CC -V 2>&1 | sed 5q` in - *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*) + *Sun\ F* | *Sun*Fortran*) # Sun Fortran 8.3 passes all unrecognized flags to the linker lt_prog_compiler_pic='-KPIC' lt_prog_compiler_static='-Bstatic' lt_prog_compiler_wl='' ;; - *Sun\ F* | *Sun*Fortran*) - lt_prog_compiler_pic='-KPIC' - lt_prog_compiler_static='-Bstatic' - lt_prog_compiler_wl='-Qoption ld ' - ;; *Sun\ C*) # Sun C 5.9 lt_prog_compiler_pic='-KPIC' lt_prog_compiler_static='-Bstatic' lt_prog_compiler_wl='-Wl,' ;; - *Intel*\ [CF]*Compiler*) - lt_prog_compiler_wl='-Wl,' - lt_prog_compiler_pic='-fPIC' - lt_prog_compiler_static='-static' - ;; - *Portland\ Group*) - lt_prog_compiler_wl='-Wl,' - lt_prog_compiler_pic='-fpic' - lt_prog_compiler_static='-Bstatic' - ;; esac ;; esac @@ -9116,6 +9064,7 @@ $as_echo_n "checking whether the $compil hardcode_direct=no hardcode_direct_absolute=no hardcode_libdir_flag_spec= + hardcode_libdir_flag_spec_ld= hardcode_libdir_separator= hardcode_minus_L=no hardcode_shlibpath_var=unsupported @@ -9365,7 +9314,8 @@ _LT_EOF xlf* | bgf* | bgxlf* | mpixlf*) # IBM XL Fortran 10.1 on PPC cannot create shared libs itself whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive' - hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' + hardcode_libdir_flag_spec= + hardcode_libdir_flag_spec_ld='-rpath $libdir' archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib' if test "x$supports_anon_versioning" = xyes; then archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~ @@ -9744,7 +9694,6 @@ fi # The linker will not automatically build a static lib if we build a DLL. # _LT_TAGVAR(old_archive_from_new_cmds, )='true' enable_shared_with_static_runtimes=yes - exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib old_postinstall_cmds='chmod 644 $oldlib' @@ -9790,7 +9739,6 @@ fi hardcode_shlibpath_var=unsupported if test "$lt_cv_ld_force_load" = "yes"; then whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' - else whole_archive_flag_spec='' fi @@ -9819,6 +9767,10 @@ fi hardcode_shlibpath_var=no ;; + freebsd1*) + ld_shlibs=no + ;; + # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. Future versions do this automatically, but an explicit c++rt0.o # does not break anything, and helps significantly (at the cost of a little @@ -9831,7 +9783,7 @@ fi ;; # Unfortunately, older versions of FreeBSD 2 do not have this feature. - freebsd2.*) + freebsd2*) archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' hardcode_direct=yes hardcode_minus_L=yes @@ -9870,6 +9822,7 @@ fi fi if test "$with_gnu_ld" = no; then hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' + hardcode_libdir_flag_spec_ld='+b $libdir' hardcode_libdir_separator=: hardcode_direct=yes hardcode_direct_absolute=yes @@ -10493,6 +10446,11 @@ esac + + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5 $as_echo_n "checking dynamic linker characteristics... " >&6; } @@ -10582,7 +10540,7 @@ need_version=unknown case $host_os in aix3*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a' shlibpath_var=LIBPATH @@ -10591,7 +10549,7 @@ aix3*) ;; aix[4-9]*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no hardcode_into_libs=yes @@ -10656,7 +10614,7 @@ beos*) ;; bsdi[45]*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' @@ -10795,7 +10753,7 @@ darwin* | rhapsody*) ;; dgux*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext' @@ -10803,6 +10761,10 @@ dgux*) shlibpath_var=LD_LIBRARY_PATH ;; +freebsd1*) + dynamic_linker=no + ;; + freebsd* | dragonfly*) # DragonFly does not have aout. When/if they implement a new # versioning mechanism, adjust this. @@ -10810,7 +10772,7 @@ freebsd* | dragonfly*) objformat=`/usr/bin/objformat` else case $host_os in - freebsd[23].*) objformat=aout ;; + freebsd[123]*) objformat=aout ;; *) objformat=elf ;; esac fi @@ -10828,7 +10790,7 @@ freebsd* | dragonfly*) esac shlibpath_var=LD_LIBRARY_PATH case $host_os in - freebsd2.*) + freebsd2*) shlibpath_overrides_runpath=yes ;; freebsd3.[01]* | freebsdelf3.[01]*) @@ -10848,18 +10810,17 @@ freebsd* | dragonfly*) ;; gnu*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH - shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; haiku*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" @@ -10920,7 +10881,7 @@ hpux9* | hpux10* | hpux11*) ;; interix[3-9]*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}' @@ -10936,7 +10897,7 @@ irix5* | irix6* | nonstopux*) nonstopux*) version_type=nonstopux ;; *) if test "$lt_cv_prog_gnu_ld" = yes; then - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux else version_type=irix fi ;; @@ -10973,9 +10934,9 @@ linux*oldld* | linux*aout* | linux*coff* dynamic_linker=no ;; -# This must be glibc/ELF. +# This must be Linux ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' @@ -11023,14 +10984,10 @@ fi # before this can be enabled. hardcode_into_libs=yes - # Add ABI-specific directories to the system library path. - sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" - # Append ld.so.conf contents to the search path if test -f /etc/ld.so.conf; then lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '` - sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra" - + sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra" fi # We used to test for /lib/ld.so.1 and disable shared libraries on @@ -11061,7 +11018,7 @@ netbsd*) ;; newsos6) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes @@ -11130,7 +11087,7 @@ rdos*) ;; solaris*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' @@ -11155,7 +11112,7 @@ sunos4*) ;; sysv4 | sysv4.3*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH @@ -11179,7 +11136,7 @@ sysv4 | sysv4.3*) sysv4*MP*) if test -d /usr/nec ;then - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' soname_spec='$libname${shared_ext}.$major' shlibpath_var=LD_LIBRARY_PATH @@ -11210,7 +11167,7 @@ sysv5* | sco3.2v5* | sco5v6* | unixware* tpf*) # TPF is a cross-target only. Preferred cross-host = GNU/Linux. - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' @@ -11220,7 +11177,7 @@ tpf*) ;; uts4*) - version_type=linux # correct to gnu/linux during the next big refactor + version_type=linux library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH @@ -12002,8 +11959,6 @@ CC="$lt_save_CC" - - ac_config_commands="$ac_config_commands libtool" @@ -14259,7 +14214,40 @@ $as_echo "#define AC_APPLE_UNIVERSAL_BUI esac -GCC_AS_CFI_PSEUDO_OP +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler .cfi pseudo-op support" >&5 +$as_echo_n "checking assembler .cfi pseudo-op support... " >&6; } +if ${gcc_cv_as_cfi_pseudo_op+:} false; then : + $as_echo_n "(cached) " >&6 +else + + gcc_cv_as_cfi_pseudo_op=unknown + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +asm (".cfi_startproc\n\t.cfi_endproc"); +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gcc_cv_as_cfi_pseudo_op=yes +else + gcc_cv_as_cfi_pseudo_op=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_cfi_pseudo_op" >&5 +$as_echo "$gcc_cv_as_cfi_pseudo_op" >&6; } + if test "x$gcc_cv_as_cfi_pseudo_op" = xyes; then + +$as_echo "#define HAVE_AS_CFI_PSEUDO_OP 1" >>confdefs.h + + fi + if test x$TARGET = xSPARC; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler and linker support unaligned pc related relocs" >&5 @@ -14485,6 +14473,16 @@ $as_echo "#define SYMBOL_UNDERSCORE 1" > fi fi +# On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC. +# Check whether --enable-pax_emutramp was given. +if test "${enable_pax_emutramp+set}" = set; then : + enableval=$enable_pax_emutramp; if test "$enable_pax_emutramp" = "yes"; then + +$as_echo "#define FFI_MMAP_EXEC_EMUTRAMP_PAX 1" >>confdefs.h + + fi +fi + FFI_EXEC_TRAMPOLINE_TABLE=0 case "$target" in @@ -15580,7 +15578,6 @@ pic_mode='`$ECHO "$pic_mode" | $SED "$de enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`' SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`' ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`' -PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`' host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`' host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`' host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`' @@ -15663,6 +15660,7 @@ with_gnu_ld='`$ECHO "$with_gnu_ld" | $SE allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`' no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`' hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`' +hardcode_libdir_flag_spec_ld='`$ECHO "$hardcode_libdir_flag_spec_ld" | $SED "$delay_single_quote_subst"`' hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`' hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`' hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`' @@ -15718,7 +15716,6 @@ _LTECHO_EOF' # Quote evaled strings. for var in SHELL \ ECHO \ -PATH_SEPARATOR \ SED \ GREP \ EGREP \ @@ -15769,6 +15766,7 @@ with_gnu_ld \ allow_undefined_flag \ no_undefined_flag \ hardcode_libdir_flag_spec \ +hardcode_libdir_flag_spec_ld \ hardcode_libdir_separator \ exclude_expsyms \ include_expsyms \ @@ -16750,8 +16748,8 @@ $as_echo X"$file" | # NOTE: Changes made to this file will be lost: look at ltmain.sh. # # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, -# 2006, 2007, 2008, 2009, 2010, 2011 Free Software -# Foundation, Inc. +# 2006, 2007, 2008, 2009, 2010 Free Software Foundation, +# Inc. # Written by Gordon Matzigkeit, 1996 # # This file is part of GNU Libtool. @@ -16805,9 +16803,6 @@ SHELL=$lt_SHELL # An echo program that protects backslashes. ECHO=$lt_ECHO -# The PATH separator for the build system. -PATH_SEPARATOR=$lt_PATH_SEPARATOR - # The host system. host_alias=$host_alias host=$host @@ -17109,6 +17104,10 @@ no_undefined_flag=$lt_no_undefined_flag # This must work even if \$libdir does not exist hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec +# If ld is used when linking, flag to hardcode \$libdir into a binary +# during linking. This must work even if \$libdir does not exist. +hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld + # Whether we need a single "-rpath" flag with a separated argument. hardcode_libdir_separator=$lt_hardcode_libdir_separator Index: libffi/configure.ac =================================================================== --- libffi.orig/configure.ac +++ libffi/configure.ac @@ -357,6 +357,13 @@ if test x$TARGET = xX86_WIN64; then 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], + if test "$enable_pax_emutramp" = "yes"; then + AC_DEFINE(FFI_MMAP_EXEC_EMUTRAMP_PAX, 1, + [Define this if you want to enable pax emulated trampolines]) + fi) FFI_EXEC_TRAMPOLINE_TABLE=0 case "$target" in Index: libffi/src/closures.c =================================================================== --- libffi.orig/src/closures.c +++ libffi/src/closures.c @@ -172,6 +172,27 @@ selinux_enabled_check (void) #endif /* !FFI_MMAP_EXEC_SELINUX */ +/* On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC. */ +#ifdef FFI_MMAP_EXEC_EMUTRAMP_PAX +#include + +static int emutramp_enabled = -1; + +static int +emutramp_enabled_check (void) +{ + if (getenv ("FFI_DISABLE_EMUTRAMP") == NULL) + return 1; + else + return 0; +} + +#define is_emutramp_enabled() (emutramp_enabled >= 0 ? emutramp_enabled \ + : (emutramp_enabled = emutramp_enabled_check ())) +#else +#define is_emutramp_enabled() 0 +#endif /* FFI_MMAP_EXEC_EMUTRAMP_PAX */ + #elif defined (__CYGWIN__) || defined(__INTERIX) #include @@ -458,6 +479,12 @@ dlmmap (void *start, size_t length, int printf ("mapping in %zi\n", length); #endif + if (execfd == -1 && is_emutramp_enabled ()) + { + ptr = mmap (start, length, prot & ~PROT_EXEC, flags, fd, offset); + return ptr; + } + if (execfd == -1 && !is_selinux_enabled ()) { ptr = mmap (start, length, prot | PROT_EXEC, flags, fd, offset);