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| author | David S. Miller <davem@davemloft.net> | 2012-02-21 12:06:07 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-02-20 17:51:48 -0800 |
| commit | c80098a9a05b7d5f8ad1488135f2cee613998c50 (patch) | |
| tree | cd8d1e7b3de2442f45c88143edd1869eb594a8a2 /sysdeps/sparc/elf/configure | |
| parent | 3a2545a0f345a6c6348e9f7ce56e929aeab61f10 (diff) | |
| download | glibc-c80098a9a05b7d5f8ad1488135f2cee613998c50.tar.gz glibc-c80098a9a05b7d5f8ad1488135f2cee613998c50.tar.xz glibc-c80098a9a05b7d5f8ad1488135f2cee613998c50.zip | |
Add sparc configure checks for GOTDATA support.
* config.h.in (HAVE_BINUTILS_GOTDATA): New. (HAVE_GCC_GOTDATA): New. * sysdeps/sparc/elf/configure.in: Test for GOTDATA relocation support in both binutils and gcc. * sysdeps/sparc/elf/configure: Regenerate.
Diffstat (limited to 'sysdeps/sparc/elf/configure')
| -rw-r--r-- | sysdeps/sparc/elf/configure | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sysdeps/sparc/elf/configure b/sysdeps/sparc/elf/configure index 78dc977ec7..67a40398c7 100644 --- a/sysdeps/sparc/elf/configure +++ b/sysdeps/sparc/elf/configure @@ -136,3 +136,76 @@ $as_echo "$libc_cv_sparc_tls" >&6; } if test $libc_cv_sparc_tls = no; then as_fn_error $? "the assembler must support TLS" "$LINENO" 5 fi + +# Check for GOTDATA relocation support in assembler and linker. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sparc binutils GOTDATA reloc support" >&5 +$as_echo_n "checking for sparc binutils GOTDATA reloc support... " >&6; } +if ${libc_cv_sparc_gotdata+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.S <<\EOF + .data + .globl data +data: .word 0 + .text + .globl foo +foo: sethi %gdop_hix22(data), %g1 + xor %g1, %gdop_lox10(data), %g1 +#ifdef __arch64__ + ldx [%l7 + %g1], %g1, %gdop(data) +#else + ld [%l7 + %g1], %g1, %gdop(data) +#endif +EOF +if { ac_try='${CC-cc} -c $CFLAGS conftest.S 1>&5' + { { eval echo "\"\$as_me\":${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; }; }; then + libc_cv_sparc_gotdata=yes +else + libc_cv_sparc_gotdata=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_sparc_gotdata" >&5 +$as_echo "$libc_cv_sparc_gotdata" >&6; } +if test $libc_cv_sparc_gotdata = yes; then + $as_echo "#define HAVE_BINUTILS_GOTDATA 1" >>confdefs.h + +fi + +# Check for a GCC emitting GOTDATA relocations. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sparc gcc GOTDATA reloc support" >&5 +$as_echo_n "checking for sparc gcc GOTDATA reloc support... " >&6; } +if ${libc_cv_sparc_gcc_gotdata+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.c <<\EOF +int data; +int foo(void) +{ + return data; +} +EOF +libc_cv_sparc_gcc_gotdata=no +if { ac_try='${CC-cc} -S $CFLAGS -O2 -fPIC conftest.c 1>&5' + { { eval echo "\"\$as_me\":${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; }; }; then + if grep -q 'gdop_hix22' conftest.s \ + && grep -q 'gdop_lox10' conftest.s; then + libc_cv_sparc_gcc_gotdata=yes + fi +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_sparc_gcc_gotdata" >&5 +$as_echo "$libc_cv_sparc_gcc_gotdata" >&6; } +if test $libc_cv_sparc_gcc_gotdata = yes; then + $as_echo "#define HAVE_GCC_GOTDATA 1" >>confdefs.h + +fi |