1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
2 # Local configure fragment for sysdeps/ia64.
4 AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp,
5 libc_cv_cpp_asm_debuginfo, [dnl
12 ${libc_cv_asm_global_directive} foo
14 /* Unfortunately this test only works for a real instruction,
15 not for any of the machine-independent pseudo-ops.
16 So we just have to assume everybody has a "nop". */
23 if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && {
24 ac_pattern='conftest\.S'
25 AC_TRY_COMMAND([readelf --debug-dump=line conftest.o |
26 grep $ac_pattern 1>&AS_MESSAGE_LOG_FD])
28 libc_cv_cpp_asm_debuginfo=yes
30 libc_cv_cpp_asm_debuginfo=no
32 rm -f conftest*])AC_SUBST(libc_cv_cpp_asm_debuginfo)
33 if test $libc_cv_cpp_asm_debuginfo = yes; then
34 AC_DEFINE(HAVE_CPP_ASM_DEBUGINFO)
37 # Check for support of thread-local storage handling in assembler and
39 AC_CACHE_CHECK(for ia64 TLS support, libc_cv_ia64_tls, [dnl
40 cat > conftest.s <<\EOF
41 .section ".tdata","awT",@progbits
44 addl r16 = @ltoff(@dtpmod(foo#)), gp
45 addl r17 = @ltoff(@dtprel(foo#)), gp
46 addl r18 = @ltoff(@tprel(foo#)), gp
47 addl r19 = @dtprel(foo#), gp
48 adds r21 = @dtprel(foo#), r13
49 movl r23 = @dtprel(foo#)
50 addl r20 = @tprel(foo#), gp
51 adds r22 = @tprel(foo#), r13
52 movl r24 = @tprel(foo#)
55 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
61 if test $libc_cv_ia64_tls = no; then
62 AC_MSG_ERROR([the assembler must support TLS])
65 dnl It is always possible to access static and hidden symbols in an
66 dnl position independent way.
67 AC_DEFINE(PI_STATIC_AND_HIDDEN)