diff options
Diffstat (limited to 'sysdeps/sparc/configure.ac')
| -rw-r--r-- | sysdeps/sparc/configure.ac | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/sparc/configure.ac b/sysdeps/sparc/configure.ac new file mode 100644 index 0000000000..982077c9b9 --- /dev/null +++ b/sysdeps/sparc/configure.ac @@ -0,0 +1,59 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/sparc. + +# Check for support of VIS3 et al. instructions in the assembler. +AC_CACHE_CHECK(for sparc assembler VIS3 support, libc_cv_sparc_as_vis3, [dnl +cat > conftest.S <<\EOF + .text +foo: fmadds %f1, %f2, %f3, %f5 + fmaddd %f2, %f4, %f8, %f10 + fhadds %f2, %f3, %f5 + fhaddd %f4, %f8, %f10 + pdistn %f2, %f4, %g1 + movdtox %f10, %o0 + movstouw %f9, %o1 + movstosw %f7, %o2 + movxtod %o3, %f18 + movwtos %o4, %f15 + flcmps %fcc0, %f3, %f5 + flcmpd %fcc1, %f4, %f6 +EOF +dnl +if AC_TRY_COMMAND([${CC-cc} -c $CFLAGS -Wa,-Av9d conftest.S]); then + libc_cv_sparc_as_vis3=yes +else + libc_cv_sparc_as_vis3=no +fi +rm -f conftest*]) +if test $libc_cv_sparc_as_vis3 = yes; then + AC_DEFINE(HAVE_AS_VIS3_SUPPORT) +fi +LIBC_CONFIG_VAR([have-as-vis3], [$libc_cv_sparc_as_vis3]) + +# 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 + +if test $libc_cv_sparc_gcc_gotdata = yes; then + AC_DEFINE(PI_STATIC_AND_HIDDEN) +fi |