20000317 sourceware import

libgloss/d30v/Makefile.in

@@ -0,0 +1,128 @@
+# Copyright (c) 1997 Cygnus Support
+#
+# The authors hereby grant permission to use, copy, modify, distribute,
+# and license this software and its documentation for any purpose, provided
+# that existing copyright notices are retained in all copies and that this
+# notice is included verbatim in any distributions. No written agreement,
+# license, or royalty fee is required for any of the authorized uses.
+# Modifications to this software may be copyrighted by their authors
+# and need not follow the licensing terms described here, provided that
+# the new terms are clearly indicated on the first page of each file where
+# they apply.
+#
+
+#
+# This currently works with the D30V simulator.
+#
+
+VPATH = @srcdir@ @srcdir@/..
+srcdir = @srcdir@
+objdir = .
+srcroot = $(srcdir)/../..
+objroot = $(objdir)/../..
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+host_alias = @host_alias@
+target_alias = @target_alias@
+
+bindir = @bindir@
+libdir = @libdir@
+tooldir = $(exec_prefix)/$(target_alias)
+
+# Multilib support variables.
+# TOP is used instead of MULTI{BUILD,SRC}TOP.
+MULTIDIRS =
+MULTISUBDIR =
+MULTIDO = true
+MULTICLEAN = true
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+SHELL =	/bin/sh
+
+CC = @CC@
+
+AS = @AS@
+AR = @AR@
+LD = @LD@
+RANLIB = @RANLIB@
+
+OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \
+	then echo ${objroot}/../binutils/objdump ; \
+	else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi`
+OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
+	then echo ${objroot}/../binutils/objcopy ; \
+	else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
+
+OBJS		= isatty.o print.o putnum.o sbrk.o
+CFLAGS		= -g
+SCRIPTS		= ${SIM_SCRIPTS}
+
+# Here is all of the simulator stuff
+SIM_SCRIPTS	=
+SIM_LDFLAGS	=
+SIM_BSP		= libsim.a
+SIM_CRT0	= crt0.o
+SIM_OBJS	= syscalls.o outbyte.o inbyte.o
+SIM_TEST	=
+SIM_INSTALL	= install-sim
+
+# Host specific makefile fragment comes in here.
+@host_makefile_frag@
+
+#
+# build a test program for each target board. Just trying to get
+# it to link is a good test, so we ignore all the errors for now.
+#
+all: 	${SIM_CRT0} ${SIM_BSP}
+
+#
+# here's where we build the board support packages for each target
+#
+
+${SIM_BSP}: ${OBJS} ${SIM_OBJS}
+	${AR} ${ARFLAGS} $@ ${SIM_OBJS} ${OBJS}
+	${RANLIB} $@
+
+#
+# here's where we build the test programs for each target
+#
+.PHONY: test
+test:	${SIM_TEST}
+
+crt0.o: crt0.S
+syscalls.o: syscalls.c $(srcdir)/../syscall.h
+outbyte.o: outbyte.c
+inbyte.o: inbyte.c
+
+isatty.o: $(srcdir)/../isatty.c
+print.o: $(srcdir)/../print.c
+putnum.o: $(srcdir)/../putnum.c
+sbrk.o: $(srcdir)/../sbrk.c
+
+clean mostlyclean:
+	rm -f a.out core *.[oais] *-test *.srec *.dis *.x syscall.h
+
+distclean maintainer-clean realclean: clean
+	rm -f Makefile config.status *~
+
+.PHONY: install info install-info clean-info
+install: ${SIM_INSTALL}
+
+install-sim:
+	set -e; for x in ${SIM_CRT0} ${SIM_BSP} ${SIM_SCRIPTS}; do ${INSTALL_DATA} $$x ${tooldir}/lib${MULTISUBDIR}/$$x; done
+
+doc:
+info:
+install-info:
+clean-info:
+
+Makefile: Makefile.in config.status @host_makefile_frag_path@
+	$(SHELL) config.status
+
+config.status: configure
+	$(SHELL) config.status --recheck

libgloss/d30v/configure.in

@@ -0,0 +1,90 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.5)dnl
+AC_INIT(crt0.S)
+
+if test "${enable_shared}" = "yes" ; then
+    echo "Shared libraries not supported for cross compiling, ignored"
+fi
+
+if test "$srcdir" = "." ; then
+  if test "${with_target_subdir}" != "." ; then
+    libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
+  else
+    libgloss_topdir="${srcdir}/${with_multisrctop}../.."
+  fi
+else
+  libgloss_topdir="${srcdir}/../.."
+fi
+AC_CONFIG_AUX_DIR($libgloss_topdir)
+
+AC_CANONICAL_SYSTEM
+AC_ARG_PROGRAM
+
+AC_PROG_INSTALL
+
+# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable.  This should really be fixed in autoconf
+# itself.
+
+AC_DEFUN(LIB_AC_PROG_CC,
+[AC_BEFORE([$0], [AC_PROG_CPP])dnl
+AC_CHECK_PROG(CC, gcc, gcc)
+if test -z "$CC"; then
+  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
+fi
+
+AC_PROG_CC_GNU
+
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+dnl Check whether -g works, even if CFLAGS is set, in case the package
+dnl plays around with CFLAGS (such as to build both debugging and
+dnl normal versions of a library), tasteless as that idea is.
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  AC_PROG_CC_G
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+])
+
+LIB_AC_PROG_CC
+
+AS=${AS-as}
+AC_SUBST(AS)
+AR=${AR-ar}
+AC_SUBST(AR)
+LD=${LD-ld}
+AC_SUBST(LD)
+AC_PROG_RANLIB
+
+host_makefile_frag=${srcdir}/../config/default.mh
+
+dnl We have to assign the same value to other variables because autoconf
+dnl doesn't provide a mechanism to substitute a replacement keyword with
+dnl arbitrary data or pathnames.
+dnl
+host_makefile_frag_path=$host_makefile_frag
+AC_SUBST(host_makefile_frag_path)
+AC_SUBST_FILE(host_makefile_frag)
+
+AC_OUTPUT(Makefile,
+. ${libgloss_topdir}/config-ml.in,
+srcdir=${srcdir}
+target=${target}
+ac_configure_args="${ac_configure_args} --enable-multilib"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+libgloss_topdir=${libgloss_topdir}
+)

libgloss/d30v/crt0.S

@@ -0,0 +1,56 @@
+/*
+ * crt0.S -- startup file for D30V systems.
+ *
+ * Copyright (c) 1997 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+	.file	"crt0.S"
+	.text
+	.globl	_start
+	.extern	main
+	.extern	exit
+	.extern __stack
+	.extern	__sbss_start
+	.extern	__sbss_end
+	.extern	__ebss_start
+	.extern	__ebss_end
+	.extern	__bss_start
+	.extern	__bss_end
+	.extern	memset
+	.type	_start,@function
+
+_start:	or.l	sp,r0,__stack
+
+	/* Zero the .sbss area */
+	or.l	r2,r0,__sbss_start
+	or.l	r4,r0,__sbss_end
+	sub	r4,r4,r2	|| or.s r3,r0,0
+	bsrtnz.l r4,(memset)
+
+	/* Zero the .ebss area */
+	or.l	r2,r0,__ebss_start
+	or.l	r4,r0,__ebss_end
+	sub	r4,r4,r2	|| or.s r3,r0,0
+	bsrtnz.l r4,(memset)
+
+	/* Zero the .bss area */
+	or.l	r2,r0,__bss_start
+	or.l	r4,r0,__bss_end
+	sub	r4,r4,r2	|| or.s r3,r0,0
+	bsrtnz.l r4,(memset)
+
+	or.s	r2,r0,0		|| or.s	r3,r0,0
+	or	r4,r0,0		|| nop
+	jsr.l	(main)
+	jsr.l	(exit)
+	.size	_start,.-_start

libgloss/d30v/inbyte.c

@@ -0,0 +1,24 @@
+/* inbyte -- read a single byte.
+ *
+ * Copyright (c) 1997 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+int
+inbyte (void)
+{
+  char ch;
+  if (read (0, &ch, 1) == 1)
+    return ch;
+
+  return -1;
+}

libgloss/d30v/outbyte.c

@@ -0,0 +1,21 @@
+/* outbyte -- write a single byte.
+ *
+ * Copyright (c) 1997 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+void
+outbyte (int byte)
+{
+  char ch = byte;
+  write (1, &ch, 1);
+}

libgloss/d30v/syscalls.c

@@ -0,0 +1,146 @@
+/*
+ * syscalls.c -- provide system call support via trap 31
+ *
+ * Copyright (c) 1997 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ *
+ * Read bytes, using simulator trap 31.
+ */
+
+#include <stdlib.h>
+#include "syscall.h"
+
+extern int *__errno(), errno;
+
+__asm__ (
+"	.globl	__syscall
+	.type	__syscall,@function
+__syscall:
+	trap	31		|| nop
+	cmpge	f0,r2,0		-> jmp/tx	link
+	bra	__set_errno
+	.size	__syscall,.-__syscall
+");
+
+int
+__set_errno (int new_errno)
+{
+  errno = new_errno;
+  *(__errno)() = errno;
+  return -1;
+}
+
+void
+_exit (int status)
+{
+  __syscall (status, 0, 0, 0, SYS_exit);
+}
+
+int
+open (const char *filename, int flags, int mode)
+{
+  return __syscall (filename, flags, mode, 0, SYS_open);
+}
+
+int
+close (int filedes)
+{
+  return __syscall (filedes, 0, 0, 0, SYS_close);
+}
+
+int
+read (int filedes, void *buffer, size_t length)
+{
+  return __syscall (filedes, buffer, length, 0, SYS_read);
+}
+
+int
+write (int filedes, void *buffer, size_t length)
+{
+  return __syscall (filedes, buffer, length, 0, SYS_write);
+}
+
+long
+lseek (int filedes, long offset, int whence)
+{
+  return __syscall (filedes, offset, whence, 0, SYS_lseek);
+}
+
+int
+unlink (const char *filename)
+{
+  return __syscall (filename, 0, 0, 0, SYS_unlink);
+}
+
+int
+getpid (void)
+{
+  return __syscall (0, 0, 0, 0, SYS_getpid);
+}
+
+int
+kill (int signal, int pid)
+{
+  return __syscall (signal, pid, 0, 0, SYS_kill);
+}
+
+int
+fstat (int filedes, void *info)
+{
+  return __syscall (filedes, info, 0, 0, SYS_fstat);
+}
+
+int
+__argvlen (void)
+{
+  return __syscall (0, 0, 0, 0, SYS_argvlen);
+}
+
+int
+__argv (void)
+{
+  return __syscall (0, 0, 0, 0, SYS_argv);
+}
+
+int
+chdir (char *dir)
+{
+  return __syscall (dir, 0, 0, 0, SYS_chdir);
+}
+
+int
+stat (const char *filename, void *info)
+{
+  return __syscall (filename, info, 0, 0, SYS_stat);
+}
+
+int
+chmod (const char *filename, int mode)
+{
+  return __syscall (filename, mode, 0, 0, SYS_chmod);
+}
+
+int
+utime (const char *filename, void *packet)
+{
+  return __syscall (filename, packet, 0, 0, SYS_utime);
+}
+
+time_t
+time (time_t *time_ptr)
+{
+  time_t result;	
+  result = (time_t) __syscall (time_ptr, 0, 0, 0, SYS_time);
+  if (time_ptr != NULL)
+    *time_ptr = result;
+  return result;
+}