| 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 |
