diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 92 |
1 files changed, 0 insertions, 92 deletions
@@ -5940,98 +5940,6 @@ fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5 $as_echo "$libc_linker_feature" >&6; } -# Add-on fragments can set these for other machines. -libc_commonpagesize=${libc_commonpagesize:-no} -libc_relro_required=${libc_relro_required:-no} -case "$base_machine" in - i[34567]86 | x86_64 | powerpc* | s390*) - libc_commonpagesize=0x1000 - libc_relro_required=yes - ;; - sparc*) - libc_commonpagesize=0x2000 - libc_relro_required=yes - ;; -esac - -if test $libc_commonpagesize != no; then - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -z relro option" >&5 -$as_echo_n "checking for -z relro option... " >&6; } -if ${libc_cv_z_relro+:} false; then : - $as_echo_n "(cached) " >&6 -else - libc_cv_z_relro=no - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ - -int _start (void) { return 42; } -extern void _exit (int); -/* Since these pointers are const, they should go in rodata. - Since they refer to functions that have to be resolved by - dynamic linking, they should instead go in RELRO data. */ -const void *const relro[] = { &_start, &_exit, 0 }; -/* GNU ld fails to produce RELRO data when it's very small and there is no - normal writable data following it, or if only uninitialized (.bss) data - follows it, or only very small writable data. */ -int data[0x10000] = { 1, }; - -_ACEOF - cat > conftest.awk <<\EOF -BEGIN { - result = "no" - commonpagesize = strtonum(commonpagesize) -} -{ print "LINE:", $0 > "/dev/stderr" } -$1 == "GNU_RELRO" { - vaddr = strtonum($3) - memsz = strtonum($6) - end = vaddr + memsz - printf "vaddr %#x memsz %#x end %#x commonpagesize %#x\n", \ - vaddr, memsz, end, commonpagesize > "/dev/stderr" - result = (end % commonpagesize == 0) ? "yes" : "broken" -} -END { print result } -EOF - { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS - -fPIC -shared -o conftest.so conftest.c - -nostartfiles -nostdlib - -Wl,-z,relro 1>&5' - { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 - (eval $ac_try) 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; } && - { ac_try='$READELF -Wl conftest.so > conftest.ph' - { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 - (eval $ac_try) 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; } && - { ac_try=' - $AWK -v commonpagesize=$libc_commonpagesize -f conftest.awk - conftest.ph > conftest.cps - ' - { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 - (eval $ac_try) 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; } && - libc_cv_z_relro=`cat conftest.cps 2>&5` - rm -f conftest* -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_relro" >&5 -$as_echo "$libc_cv_z_relro" >&6; } - if { test "x$libc_relro_required" = xyes && - test "x$libc_cv_z_relro" != xyes - } - then - as_fn_error $? "linker with -z relro support required" "$LINENO" 5 - fi -else - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: missing architecture parameter to check for working -z relro" >&5 -$as_echo "$as_me: WARNING: missing architecture parameter to check for working -z relro" >&2;} -fi - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Bgroup option" >&5 $as_echo_n "checking for -Bgroup option... " >&6; } if ${libc_cv_Bgroup+:} false; then : |