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-rw-r--r--ports/sysdeps/ia64/configure.in67
1 files changed, 67 insertions, 0 deletions
diff --git a/ports/sysdeps/ia64/configure.in b/ports/sysdeps/ia64/configure.in
new file mode 100644
index 0000000000..5f1b1123f9
--- /dev/null
+++ b/ports/sysdeps/ia64/configure.in
@@ -0,0 +1,67 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/ia64.
+
+AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp,
+	       libc_cv_cpp_asm_debuginfo, [dnl
+cat > conftest.S <<EOF
+#include "confdefs.h"
+
+/* comment on
+   two lines */
+	${libc_cv_dot_text}
+	${libc_cv_asm_global_directive} foo
+foo:
+	/* Unfortunately this test only works for a real instruction,
+	   not for any of the machine-independent pseudo-ops.
+	   So we just have to assume everybody has a "nop".  */
+	nop.b	0;;
+	/* comment */
+	nop.b	0;;
+	/* comment */
+	nop.b	0;;
+EOF
+if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && {
+   ac_pattern='conftest\.S'
+   AC_TRY_COMMAND([readelf --debug-dump=line conftest.o |
+		   grep $ac_pattern 1>&AS_MESSAGE_LOG_FD])
+  }; then
+  libc_cv_cpp_asm_debuginfo=yes
+else
+  libc_cv_cpp_asm_debuginfo=no
+fi
+rm -f conftest*])AC_SUBST(libc_cv_cpp_asm_debuginfo)
+if test $libc_cv_cpp_asm_debuginfo = yes; then
+  AC_DEFINE(HAVE_CPP_ASM_DEBUGINFO)
+fi
+
+# Check for support of thread-local storage handling in assembler and
+# linker.
+AC_CACHE_CHECK(for ia64 TLS support, libc_cv_ia64_tls, [dnl
+cat > conftest.s <<\EOF
+	.section ".tdata","awT",@progbits
+foo:    data8   25
+	.text
+	addl    r16 = @ltoff(@dtpmod(foo#)), gp
+	addl    r17 = @ltoff(@dtprel(foo#)), gp
+	addl    r18 = @ltoff(@tprel(foo#)), gp
+	addl    r19 = @dtprel(foo#), gp
+	adds    r21 = @dtprel(foo#), r13
+	movl    r23 = @dtprel(foo#)
+	addl    r20 = @tprel(foo#), gp
+	adds    r22 = @tprel(foo#), r13
+	movl    r24 = @tprel(foo#)
+EOF
+dnl
+if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
+  libc_cv_ia64_tls=yes
+else
+  libc_cv_ia64_tls=no
+fi
+rm -f conftest*])
+if test $libc_cv_ia64_tls = no; then
+  AC_MSG_ERROR([the assembler must support TLS])
+fi
+
+dnl It is always possible to access static and hidden symbols in an
+dnl position independent way.
+AC_DEFINE(PI_STATIC_AND_HIDDEN)