diff options
Diffstat (limited to 'sysdeps/sparc/elf/configure.in')
| -rw-r--r-- | sysdeps/sparc/elf/configure.in | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/sparc/elf/configure.in b/sysdeps/sparc/elf/configure.in index c22a7c5c58..ab8b189a7f 100644 --- a/sysdeps/sparc/elf/configure.in +++ b/sysdeps/sparc/elf/configure.in @@ -45,3 +45,56 @@ rm -f conftest*]) if test $libc_cv_sparc_tls = no; then AC_MSG_ERROR([the assembler must support TLS]) fi + +# Check for GOTDATA relocation support in assembler and linker. +AC_CACHE_CHECK(for sparc binutils GOTDATA reloc support, libc_cv_sparc_gotdata, [dnl +changequote(,)dnl +cat > conftest.S <<\EOF + .data + .globl data +data: .word 0 + .text + .globl foo +foo: sethi %gdop_hix22(data), %g1 + xor %g1, %gdop_lox10(data), %g1 +#ifdef __arch64__ + ldx [%l7 + %g1], %g1, %gdop(data) +#else + ld [%l7 + %g1], %g1, %gdop(data) +#endif +EOF +changequote([,])dnl +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.S 1>&AS_MESSAGE_LOG_FD); then + libc_cv_sparc_gotdata=yes +else + libc_cv_sparc_gotdata=no +fi +rm -f conftest*]) +if test $libc_cv_sparc_gotdata = yes; then + AC_DEFINE(HAVE_BINUTILS_GOTDATA) +fi + +# Check for a GCC emitting GOTDATA relocations. +AC_CACHE_CHECK(for sparc gcc GOTDATA reloc support, libc_cv_sparc_gcc_gotdata, [dnl +changequote(,)dnl +cat > conftest.c <<\EOF +int data; +int foo(void) +{ + return data; +} +EOF +changequote([,])dnl +dnl +libc_cv_sparc_gcc_gotdata=no +if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fPIC conftest.c 1>&AS_MESSAGE_LOG_FD); 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*]) +if test $libc_cv_sparc_gcc_gotdata = yes; then + AC_DEFINE(HAVE_GCC_GOTDATA) +fi |