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.
This commit is contained in:
David S. Miller
parent
3a2545a0f3
commit
c80098a9a0
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@ -1,5 +1,11 @@
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2012-02-20 David S. Miller <davem@davemloft.net>
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* config.h.in (HAVE_BINUTILS_GOTDATA): New.
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(HAVE_GCC_GOTDATA): New.
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* sysdeps/sparc/elf/configure.in: Test for GOTDATA
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relocation support in both binutils and gcc.
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* sysdeps/sparc/elf/configure: Regenerate.
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* sysdeps/sparc/sparc32/elf/configure.in: Delete.
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* sysdeps/sparc/sparc32/elf/configure: Delete.
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* sysdeps/sparc/sparc64/elf/configure.in: Delete.
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@ -87,6 +87,12 @@
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certain registers (CR0, MQ, CTR, LR) in asm statements. */
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#undef BROKEN_PPC_ASM_CR0
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/* Defined on SPARC if as and ld both support GOTDATA relocations. */
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#undef HAVE_BINUTILS_GOTDATA
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/* Defined on SPARC if GCC emits GOTDATA relocations. */
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#undef HAVE_GCC_GOTDATA
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/* Define if the linker supports the -z combreloc option. */
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#undef HAVE_Z_COMBRELOC
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@ -136,3 +136,76 @@ $as_echo "$libc_cv_sparc_tls" >&6; }
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if test $libc_cv_sparc_tls = no; then
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as_fn_error $? "the assembler must support TLS" "$LINENO" 5
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fi
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# Check for GOTDATA relocation support in assembler and linker.
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sparc binutils GOTDATA reloc support" >&5
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$as_echo_n "checking for sparc binutils GOTDATA reloc support... " >&6; }
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if ${libc_cv_sparc_gotdata+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.S <<\EOF
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.data
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.globl data
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data: .word 0
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.text
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.globl foo
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foo: sethi %gdop_hix22(data), %g1
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xor %g1, %gdop_lox10(data), %g1
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#ifdef __arch64__
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ldx [%l7 + %g1], %g1, %gdop(data)
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#else
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ld [%l7 + %g1], %g1, %gdop(data)
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#endif
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS conftest.S 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_sparc_gotdata=yes
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else
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libc_cv_sparc_gotdata=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_sparc_gotdata" >&5
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$as_echo "$libc_cv_sparc_gotdata" >&6; }
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if test $libc_cv_sparc_gotdata = yes; then
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$as_echo "#define HAVE_BINUTILS_GOTDATA 1" >>confdefs.h
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fi
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# Check for a GCC emitting GOTDATA relocations.
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sparc gcc GOTDATA reloc support" >&5
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$as_echo_n "checking for sparc gcc GOTDATA reloc support... " >&6; }
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if ${libc_cv_sparc_gcc_gotdata+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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int data;
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int foo(void)
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{
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return data;
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}
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EOF
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libc_cv_sparc_gcc_gotdata=no
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if { ac_try='${CC-cc} -S $CFLAGS -O2 -fPIC conftest.c 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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if grep -q 'gdop_hix22' conftest.s \
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&& grep -q 'gdop_lox10' conftest.s; then
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libc_cv_sparc_gcc_gotdata=yes
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fi
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_sparc_gcc_gotdata" >&5
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$as_echo "$libc_cv_sparc_gcc_gotdata" >&6; }
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if test $libc_cv_sparc_gcc_gotdata = yes; then
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$as_echo "#define HAVE_GCC_GOTDATA 1" >>confdefs.h
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fi
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@ -45,3 +45,56 @@ rm -f conftest*])
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if test $libc_cv_sparc_tls = no; then
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AC_MSG_ERROR([the assembler must support TLS])
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fi
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# Check for GOTDATA relocation support in assembler and linker.
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AC_CACHE_CHECK(for sparc binutils GOTDATA reloc support, libc_cv_sparc_gotdata, [dnl
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changequote(,)dnl
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cat > conftest.S <<\EOF
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.data
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.globl data
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data: .word 0
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.text
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.globl foo
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foo: sethi %gdop_hix22(data), %g1
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xor %g1, %gdop_lox10(data), %g1
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#ifdef __arch64__
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ldx [%l7 + %g1], %g1, %gdop(data)
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#else
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ld [%l7 + %g1], %g1, %gdop(data)
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#endif
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EOF
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changequote([,])dnl
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dnl
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.S 1>&AS_MESSAGE_LOG_FD); then
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libc_cv_sparc_gotdata=yes
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else
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libc_cv_sparc_gotdata=no
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fi
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rm -f conftest*])
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if test $libc_cv_sparc_gotdata = yes; then
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AC_DEFINE(HAVE_BINUTILS_GOTDATA)
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fi
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# Check for a GCC emitting GOTDATA relocations.
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AC_CACHE_CHECK(for sparc gcc GOTDATA reloc support, libc_cv_sparc_gcc_gotdata, [dnl
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changequote(,)dnl
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cat > conftest.c <<\EOF
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int data;
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int foo(void)
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{
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return data;
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}
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EOF
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changequote([,])dnl
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dnl
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libc_cv_sparc_gcc_gotdata=no
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if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fPIC conftest.c 1>&AS_MESSAGE_LOG_FD); then
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if grep -q 'gdop_hix22' conftest.s \
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&& grep -q 'gdop_lox10' conftest.s; then
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libc_cv_sparc_gcc_gotdata=yes
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fi
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fi
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rm -f conftest*])
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if test $libc_cv_sparc_gcc_gotdata = yes; then
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AC_DEFINE(HAVE_GCC_GOTDATA)
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fi
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