200x-xx-xx Richard Sandiford <richard@codesourcery.com> Nathan Sidwell <nathan@codesourcery.com>

gcc/
200x-xx-xx  Richard Sandiford  <richard@codesourcery.com>
	    Nathan Sidwell  <nathan@codesourcery.com>

	* config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
	(SUBTARGET_EXTRA_SPECS): New macros.
	* config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
	use %(asm_cpu_spec) instead.
	* config/m68k/m68k-none.h (ASM_SPEC): Likewise.
	* config/m68k/openbsd.h (ASM_SPEC): Likewise.
	* config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
	(EXTRA_SPECS): Rename to...
	(SUBTARGET_EXTRA_SPECS): ...this.

Co-Authored-By: Nathan Sidwell <nathan@codesourcery.com>

From-SVN: r120712

gcc/ChangeLog

+2007-01-12  Richard Sandiford  <richard@codesourcery.com>
+	    Nathan Sidwell  <nathan@codesourcery.com>
+
+	* config/m68k/m68k.h (ASM_CPU_SPEC, ASM_SPEC, EXTRA_SPECS)
+	(SUBTARGET_EXTRA_SPECS): New macros.
+	* config/m68k/linux.h (ASM_SPEC): Remove CPU flags;
+	use %(asm_cpu_spec) instead.
+	* config/m68k/m68k-none.h (ASM_SPEC): Likewise.
+	* config/m68k/openbsd.h (ASM_SPEC): Likewise.
+	* config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
+	(EXTRA_SPECS): Rename to...
+	(SUBTARGET_EXTRA_SPECS): ...this.
+
 2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
 	    Richard Sandiford  <richard@codesourcery.com>
 	    Julian Brown  <julian@codesourcery.com>

gcc/config/m68k/linux.h

@@ -23,6 +23,11 @@ Boston, MA 02110-1301, USA.  */
 #undef TARGET_VERSION
 #define TARGET_VERSION fprintf (stderr, " (68k GNU/Linux with ELF)");
 
+/* Add %(asm_cpu_spec) to the svr4.h definition of ASM_SPEC.  */
+#undef ASM_SPEC
+#define ASM_SPEC \
+  "%(asm_cpu_spec) %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*}"
+
 /* for 68k machines this only needs to be TRUE for the 68000 */
 
 #undef STRICT_ALIGNMENT
@@ -85,13 +90,6 @@ Boston, MA 02110-1301, USA.  */
 #undef CPP_SPEC
 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
 
-/* We override the ASM_SPEC from svr4.h because we must pass -m68040 down
-   to the assembler.  */
-#undef ASM_SPEC
-#define ASM_SPEC \
-  "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
-%{m68040} %{m68060:-m68040}"
-
 /* Provide a LINK_SPEC appropriate for GNU/Linux.  Here we provide support
    for the special GCC options -static and -shared, which allow us to
    link things in one of these three modes by applying the appropriate

gcc/config/m68k/m68k-none.h

@@ -18,13 +18,9 @@ along with GCC; see the file COPYING.  If not, write to
 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
 Boston, MA 02110-1301, USA.  */
 
-/* Pass flags to gas indicating which type of processor we have.  */
-
 #undef ASM_SPEC
-#define ASM_SPEC "\
-%{m68851}%{mno-68851}%{m68881}%{mno-68881}%{msoft-float:-mno-68881} %{m68000}%{m68302}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}%{m68040}%{m68020-40:-mc68040} %{m68020-60:-mc68040} %{m68060}%{mcpu32}%{m68332}%{m5200}%{m5206e}%{m528x}%{m5307}%{m5407}%{mcfv4e} \
-%{fPIC:--pcrel} %{fpic:--pcrel} %{msep-data:--pcrel} %{mid-shared-library:--pcrel} \
-"
+#define ASM_SPEC "%(asm_cpu_spec) %{fPIC:--pcrel} %{fpic:--pcrel} \
+ %{msep-data:--pcrel} %{mid-shared-library:--pcrel}"
 
 /* cc1/cc1plus always receives all the -m flags. If the specs strings above 
    are consistent with the flags in m68k.opt, there should be no need for

gcc/config/m68k/m68k.h

@@ -39,6 +39,25 @@ Boston, MA 02110-1301, USA.  */
 %{!m68332:%{!m5200:%{!m5206e:%{!m528x:%{!m5307:%{!m5407:%{!mcfv4e:\
 -%(VALUE)}}}}}}}}}}}}}}}}}}}" },
 
+/* Pass flags to gas indicating which type of processor we have.  This
+   can be simplified when we can rely on the assembler supporting .cpu
+   and .arch directives.  */
+
+#define ASM_CPU_SPEC "\
+%{m68851}%{mno-68851} %{m68881}%{mno-68881} %{msoft-float:-mno-float} \
+%{m68000}%{m68302}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}\
+%{m68040}%{m68020-40:-m68040}%{m68020-60:-m68040}\
+%{m68060}%{mcpu32}%{m68332}%{m5200}%{m5206e}%{m528x}%{m5307}%{m5407}%{mcfv4e}\
+"
+
+#define ASM_SPEC "%(asm_cpu_spec)"
+
+#define EXTRA_SPECS					\
+  { "asm_cpu_spec", ASM_CPU_SPEC },			\
+  SUBTARGET_EXTRA_SPECS
+
+#define SUBTARGET_EXTRA_SPECS
+
 /* Note that some other tm.h files include this one and then override
    many of the definitions that relate to assembler syntax.  */
 

gcc/config/m68k/netbsd-elf.h

@@ -46,7 +46,8 @@ Boston, MA 02110-1301, USA.  */
 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
 #endif
 
-#define EXTRA_SPECS \
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS \
   { "netbsd_entry_point",   NETBSD_ENTRY_POINT },
 
 
@@ -66,13 +67,11 @@ Boston, MA 02110-1301, USA.  */
 #define CPP_SPEC NETBSD_CPP_SPEC
 
 
-/* Provide an ASM_SPEC appropriate for NetBSD m68k ELF targets.  We pass
-   on some CPU options, as well as PIC code generation options.  */
+/* Provide an ASM_SPEC appropriate for NetBSD m68k ELF targets.  We need
+   to passn PIC code generation options.  */
 
 #undef ASM_SPEC
-#define ASM_SPEC \
-  "%{m68010} %{m68020} %{m68030} %{m68040} %{m68060} \
-   %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
+#define ASM_SPEC "%(asm_cpu_spec) %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
 
 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
 

gcc/config/m68k/openbsd.h

@@ -34,9 +34,8 @@ Boston, MA 02110-1301, USA.  */
 #undef CPP_SPEC
 #define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__ -D__HAVE_FPU__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
 
-/* m68k as needs to know about the processor subtype.  */
 #undef ASM_SPEC
-#define ASM_SPEC "%{m68030} %{m68040} %{m68060} %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
+#define ASM_SPEC "%(asm_cpu_spec) %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
 
 #define AS_NEEDS_DASH_FOR_PIPED_INPUT