| GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. |
| # Local configure fragment for sysdeps/powerpc/powerpc32. |
| |
| # See whether gas has R_PPC_REL16 relocs. |
| AC_CACHE_CHECK(for R_PPC_REL16 gas support, libc_cv_ppc_rel16, [dnl |
| cat > conftest.s <<\EOF |
| .text |
| addis 11,30,_GLOBAL_OFFSET_TABLE_-.@ha |
| EOF |
| if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
| libc_cv_ppc_rel16=yes |
| else |
| libc_cv_ppc_rel16=no |
| fi |
| rm -f conftest*]) |
| if test $libc_cv_ppc_rel16 = no; then |
| AC_MSG_ERROR(R_PPC_REL16 is not supported. Binutils is too old.) |
| fi |
| |
| # See whether GCC uses -msecure-plt. |
| AC_CACHE_CHECK(for -msecure-plt by default, libc_cv_ppc_secure_plt, [dnl |
| echo 'int foo (void) { extern int bar; return bar; }' > conftest.c |
| libc_cv_ppc_secure_plt=no |
| if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS conftest.c -fpic -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
| if grep '_GLOBAL_OFFSET_TABLE_-.*@ha' conftest.s > /dev/null 2>&1; then |
| libc_cv_ppc_secure_plt=yes |
| fi |
| fi |
| rm -rf conftest*]) |
| if test $libc_cv_ppc_secure_plt = yes; then |
| AC_DEFINE(HAVE_PPC_SECURE_PLT) |
| fi |
