* configure.in (HAVE_AS_TLS): New test.

	* config.in, configure: Rebuild.
	* config/i386/i386.c (TARGET_HAVE_TLS): Set if HAVE_AS_TLS.
	(ix86_tls_dialect_string, ix86_tls_dialect): New.
	(override_options): Set it.
	(tls_model_chars, tls_symbolic_operand): New.
	(tls_symbolic_operand_1, global_dynamic_symbolic_operand): New.
	(local_dynamic_symbolic_operand, initial_exec_symbolic_operand): New.
	(local_exec_symbolic_operand): New.
	(get_pic_label_name): Merge into output_set_got.
	(ix86_asm_file_end): Emit pic_label_name if defined.
	(legitimate_constant_p, constant_address_p): New.
	(legitimate_pic_operand_p): New.
	(legitimate_pic_address_disp_p): Handle GOTTPOFF, NTPOFF, DTPOFF.
	(legitimate_address_p): Likewise.
	(ix86_encode_section_info): Rename from i386_; handle tls decls.
	(ix86_strip_name_encoding): New.
	(get_thread_pointer): New.
	(legitimize_address): Handle tls symbols.
	(output_pic_addr_const): Handle GOTTPOFF, TPOFF, NTPOFF, DTPOFF.
	Remove UNSPEC_PLT.
	(struct machine_function): Add some_ld_name.
	(get_some_local_dynamic_name, get_some_local_dynamic_name_1): Set it.
	(print_operand) [&]: Use it.  Handle UNSPEC_TP.
	(output_addr_const_extra): New.
	(maybe_get_pool_constant): New.
	(ix86_split_to_parts): Use it.
	(ix86_expand_move): Handle tls symbols.
	(ix86_tls_get_addr): New.
	* config/i386/i386.h (TARGET_GNU_TLS, TARGET_SUN_TLS): New.
	(TARGET_OPTIONS): Add tls-dialect.
	(CONSTANT_ADDRESS_P): Use new out-of-line function.
	(LEGITIMATE_CONSTANT_P): Likewise.
	(LEGITIMATE_PIC_OPERAND_P): Likewise.
	(TARGET_STRIP_NAME_ENCODING): New.
	(ASM_OUTPUT_LABELREF): New.
	(PRINT_OPERAND_PUNCT_VALID_P): Add '&'.
	(OUTPUT_ADDR_CONST_EXTRA): New.
	(PREDICATE_CODES): Update.
	(ix86_tls_dialect, ix86_tls_dialect_string): New.
	* config/i386/i386.md: Regroup and renumber unspec constants.
	(tls_global_dynamic_gnu, tls_global_dynamic_sun): New.
	(tls_local_dynamic_base_gnu, tls_local_dynamic_base_sun): New.
	(tls_global_dynamic, tls_local_dynamic_base): New.
	(tls_local_dynamic_once): New.
	* config/i386/i386-protos.h: Update.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53812 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 49 insertions, 0 deletions

diff --git a/gcc/configure.in b/gcc/configure.in
index 71bfca708f9..8dcb671cf32 100644
--- a/gcc/configure.in
+++ b/gcc/configure.in
@@ -1718,6 +1718,55 @@ if test x"$gcc_cv_as_shf_merge" = xyes; then
 fi
 AC_MSG_RESULT($gcc_cv_as_shf_merge)
 
+AC_MSG_CHECKING(assembler thread-local storage support)
+gcc_cv_as_tls=no
+conftest_s=
+tls_first_major=
+tls_first_minor=
+case "$target" in
+changequote(,)dnl
+  i[34567]86-*-*)
+changequote([,])dnl
+    conftest_s='
+	.section ".tdata","awT",@progbits
+foo:	.long	25
+	.text
+	movl	%gs:0, %eax
+	leal	foo@TLSGD(,%ebx,1), %eax
+	leal	foo@TLSLDM(%ebx), %eax
+	leal	foo@DTPOFF(%eax), %edx
+	movl	foo@GOTTPOFF(%ebx), %eax
+	subl	foo@GOTTPOFF(%ebx), %eax
+	movl	$foo@TPOFF, %eax
+	subl	$foo@TPOFF, %eax
+	leal	foo@NTPOFF(%ecx), %eax'
+	tls_first_major=2
+	tls_first_minor=13
+	;;
+esac
+if test -z "$tls_first_major"; then
+  :
+elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
+then
+  if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
+	  -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
+	  -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
+    gcc_cv_as_tls=yes
+  fi
+elif test x$gcc_cv_as != x; then
+  echo "$conftest_s" > conftest.s
+  if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
+  then
+    gcc_cv_as_tls=yes
+  fi
+  rm -f conftest.s conftest.o
+fi
+if test "$gcc_cv_as_tls" = yes; then
+  AC_DEFINE(HAVE_AS_TLS, 1,
+	    [Define if your assembler supports thread-local storage.])
+fi
+AC_MSG_RESULT($gcc_cv_as_tls)
+
 case "$target" in
   # All TARGET_ABI_OSF targets.
   alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)