Support for LEON processor

	Support for LEON processor
	* config.gcc (sparc-*-elf*): Deal with sparc-leon specifically.
	(sparc-*-linux*): Likewise.
	(sparc-*-rtems*): Remove Solaris left-overs.
	(sparc*-*-*): Remove obsolete sparc86x setting.
	(sparc-leon*): Default to --with-cpu=v8 and --with-tune=leon.
	* doc/invoke.texi (SPARC Options): Document -mcpu/-mtune=leon.
	* config/sparc/sparc.h (TARGET_CPU_leon): Define.
	(TARGET_CPU_sparc86x): Delete.
	(TARGET_CPU_cypress): Define as alias to TARGET_CPU_v7.
	(TARGET_CPU_f930): Define as alias to TARGET_CPU_sparclite.
	(TARGET_CPU_f934): Likewise.
	(TARGET_CPU_tsc701): Define as alias to TARGET_CPU_sparclet.
	(CPP_CPU_SPEC): Add entry for -mcpu=leon.
	(enum processor_type): Add PROCESSOR_LEON.  Reorganize.
	* config/sparc/sparc.c (leon_costs): New cost array.
	(sparc_option_override): Add entry for TARGET_CPU_leon and -mcpu=leon.
	Initialize cost array to leon_costs if -mtune=leon.
	* config/sparc/sparc.md (cpu attribute): Add leon.  Reorganize.
	Include leon.md scheduling description.
	* config/sparc/leon.md: New file.
	* config/sparc/t-elf: Do not assemble Solaris startup files.
	* config/sparc/t-leon: New file.
	* config/sparc/t-leon3: Likewise.

Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>

From-SVN: r167957

1 files changed, 43 insertions, 7 deletions

diff --git a/gcc/config.gcc b/gcc/config.gcc
index fd0f6e5..ace2b95 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2450,18 +2450,39 @@ sh-wrs-vxworks)
 	;;
 sparc-*-elf*)
 	tm_file="${tm_file} dbxelf.h elfos.h newlib-stdint.h sparc/sysv4.h sparc/sp-elf.h"
-	tmake_file="sparc/t-elf sparc/t-crtfm"
-	extra_parts="crti.o crtn.o crtbegin.o crtend.o"
+	case ${target} in
+	    *-leon-*)
+		tmake_file="sparc/t-leon"
+		;;
+	    *-leon[3-9]*)
+		tmake_file="sparc/t-leon3"
+		;;
+	    *)
+		tmake_file="sparc/t-elf"
+		;;
+	esac
+	tmake_file="${tmake_file} sparc/t-crtfm"
+	extra_parts="crtbegin.o crtend.o"
 	;;
 sparc-*-rtems*)
 	tm_file="${tm_file} dbxelf.h elfos.h sparc/sysv4.h sparc/sp-elf.h sparc/rtemself.h rtems.h newlib-stdint.h"
 	tmake_file="sparc/t-elf sparc/t-crtfm t-rtems"
-	extra_parts="crti.o crtn.o crtbegin.o crtend.o"
+	extra_parts="crtbegin.o crtend.o"
 	;;
 sparc-*-linux*)
 	tm_file="${tm_file} dbxelf.h elfos.h sparc/sysv4.h linux.h glibc-stdint.h"
 	extra_options="${extra_options} sparc/long-double-switch.opt"
-	tmake_file="${tmake_file} sparc/t-linux"
+	case ${target} in
+	    *-leon-*)
+		tmake_file="${tmake_file} sparc/t-leon"
+		;;
+	    *-leon[3-9]*)
+		tmake_file="${tmake_file} sparc/t-leon3"
+		;;
+	    *)
+		tmake_file="${tmake_file} sparc/t-linux"
+		;;
+	esac
 	if test x$enable_targets = xall; then
 		tm_file="sparc/biarch64.h ${tm_file} sparc/linux64.h"
 		tmake_file="${tmake_file} sparc/t-linux64"
@@ -2922,6 +2943,9 @@ if test x$with_cpu = x ; then
     mips*-*-vxworks)
       with_arch=mips2
       ;;
+    sparc-leon*-*)
+      with_cpu=v8;
+      ;;
     sparc*-*-*)
       with_cpu="`echo ${target} | sed 's/-.*$//'`"
       ;;
@@ -3441,9 +3465,11 @@ case "${target}" in
 		for which in cpu tune; do
 			eval "val=\$with_$which"
 			case ${val} in
-			"" | sparc | sparcv9 | sparc64 | sparc86x \
-			| v7 | cypress | v8 | supersparc | sparclite | f930 \
-			| f934 | hypersparc | sparclite86x | sparclet | tsc701 \
+			"" | sparc | sparcv9 | sparc64 \
+			| v7 | cypress \
+			| v8 | supersparc | hypersparc | leon \
+			| sparclite | f930 | f934 | sparclite86x \
+			| sparclet | tsc701 \
 			| v9 | ultrasparc | ultrasparc3 | niagara | niagara2)
 				# OK
 				;;
@@ -3587,6 +3613,15 @@ case ${target} in
 		cxx_target_objs="${cxx_target_objs} sh-c.o"
 		;;
 
+	sparc-leon*-*)
+		if test x$with_tune = x ; then
+		  with_tune=leon;
+		fi
+
+		# The SPARC port checks this value at compile-time.
+		target_cpu_default2="TARGET_CPU_$with_cpu"
+		;;
+
 	sparc*-*-*)
 		# Some standard aliases.
 		case x$with_cpu in
@@ -3601,6 +3636,7 @@ case ${target} in
 		# The SPARC port checks this value at compile-time.
 		target_cpu_default2="TARGET_CPU_$with_cpu"
 		;;
+
 	v850*-*-*)
 		# FIXME: The v850 is "special" in that it does not support
 		# runtime CPU selection, only --with-cpu.