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From Catherine Moore, Michael Meissner, Richard Sandiford: * configure.in: Support frv*-*-*. * frv/Makefile.in: New file. * frv/configure: New file. * frv/configure.in: New file. * frv/crt0.S: New file. * frv/fstat.c: New file. * frv/getpid.c: New file. * frv/isatty.c: New file. * frv/kill.c: New file. * frv/print.c: New file. * frv/putnum.c: New file. * frv/sbrk.c: New file. * frv/sim-close.S: New file. * frv/sim-exit.S: New file. * frv/sim-inbyte.c: New file. * frv/sim-lseek.S: New file. * frv/sim-open.S: New file. * frv/sim-read.S: New file. * frv/sim-time.c: New file. * frv/sim-unlink.S: New file. * frv/sim-write.S: New file. * frv/stat.c: New file.cygwin-1-3-11-3
Dave Brolley
24 years ago
24 changed files with 2331 additions and 0 deletions
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# Copyright (c) 2002 Red Hat, Inc
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#
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# The authors hereby grant permission to use, copy, modify, distribute,
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# and license this software and its documentation for any purpose, provided
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# that existing copyright notices are retained in all copies and that this
|
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# notice is included verbatim in any distributions. No written agreement,
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# license, or royalty fee is required for any of the authorized uses.
|
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# Modifications to this software may be copyrighted by their authors
|
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# and need not follow the licensing terms described here, provided that
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# the new terms are clearly indicated on the first page of each file where
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# they apply.
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# Makefile for libgloss/frv. This is the board support
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# code for the various frv targets.
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VPATH = @srcdir@ @srcdir@/.. |
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srcdir = @srcdir@ |
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objdir = . |
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srcroot = $(srcdir)/../.. |
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objroot = $(objdir)/../.. |
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prefix = @prefix@ |
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exec_prefix = @exec_prefix@ |
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host_alias = @host_alias@ |
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target_alias = @target_alias@ |
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bindir = @bindir@ |
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libdir = @libdir@ |
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tooldir = $(exec_prefix)/$(target_alias) |
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# Multilib support variables.
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# TOP is used instead of MULTI{BUILD,SRC}TOP.
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MULTIDIRS = |
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MULTISUBDIR = |
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MULTIDO = true |
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MULTICLEAN = true |
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INSTALL = @INSTALL@ |
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INSTALL_PROGRAM = @INSTALL_PROGRAM@ |
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INSTALL_DATA = @INSTALL_DATA@ |
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SHELL = /bin/sh |
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CC = @CC@ |
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AS = @AS@ |
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AR = @AR@ |
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LD = @LD@ |
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RANLIB = @RANLIB@ |
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AR_FLAGS = rc |
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OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \
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then echo ${objroot}/../binutils/objdump ; \
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else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi` |
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OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
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then echo ${objroot}/../binutils/objcopy ; \
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else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi` |
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CRT0 = crt0.o |
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SIM_BSP = libsim.a |
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SIM_OBJS = fstat.o \
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getpid.o \
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isatty.o \
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kill.o \
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putnum.o \
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sbrk.o \
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sim-close.o \
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sim-exit.o \
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sim-inbyte.o \
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sim-lseek.o \
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sim-open.o \
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sim-read.o \
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sim-time.o \
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sim-unlink.o \
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sim-write.o \
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stat.o |
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#### Host specific Makefile fragment comes in here.
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@host_makefile_frag@ |
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all: $(CRT0) $(SIM_BSP) |
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$(SIM_BSP): $(SIM_OBJS) |
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$(AR) $(ARFLAGS) $@ $? |
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$(RANLIB) $@ |
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fstat.o: $(srcdir)/fstat.c |
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getpid.o: $(srcdir)/getpid.c |
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isatty.o: $(srcdir)/isatty.c |
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kill.o: $(srcdir)/kill.c |
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putnum.o: $(srcdir)/putnum.c |
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sbrk.o: $(srcdir)/sbrk.c |
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sim-close.o: $(srcdir)/sim-close.S |
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sim-exit.o: $(srcdir)/sim-exit.S |
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sim-inbyte.o: $(srcdir)/sim-inbyte.c |
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sim-lseek.o: $(srcdir)/sim-lseek.S |
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sim-open.o: $(srcdir)/sim-open.S |
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sim-read.o: $(srcdir)/sim-read.S |
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sim-time.o: $(srcdir)/sim-time.c |
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sim-unlink.o: $(srcdir)/sim-unlink.S |
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sim-write.o: $(srcdir)/sim-write.S |
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stat.o: $(srcdir)/stat.c |
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install: $($(CPU)_INSTALL) |
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$(INSTALL_DATA) $(CRT0) $(tooldir)/lib${MULTISUBDIR}/$(CRT0) |
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$(INSTALL_DATA) $(SIM_BSP) $(tooldir)/lib${MULTISUBDIR}/$(SIM_BSP) |
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clean mostlyclean: |
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rm -f *.o *.a |
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distclean maintainer-clean realclean: clean |
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rm -f Makefile config.cache config.log config.status |
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.PHONY: info dvi doc install-info clean-info |
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info doc dvi: |
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install-info: |
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clean-info: |
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Makefile: Makefile.in config.status @host_makefile_frag_path@ |
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$(SHELL) config.status |
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config.status: configure |
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$(SHELL) config.status --recheck |
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File diff suppressed because it is too large
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dnl Process this file with autoconf to produce a configure script. |
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AC_PREREQ(2.5)dnl |
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AC_INIT(crt0.S) |
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if test "${enable_shared}" = "yes" ; then |
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echo "Shared libraries not supported for cross compiling, ignored" |
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fi |
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if test "$srcdir" = "." ; then |
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if test "${with_target_subdir}" != "." ; then |
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libgloss_topdir="${srcdir}/${with_multisrctop}../../.." |
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else |
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libgloss_topdir="${srcdir}/${with_multisrctop}../.." |
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fi |
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else |
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libgloss_topdir="${srcdir}/../.." |
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fi |
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AC_CONFIG_AUX_DIR($libgloss_topdir) |
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AC_CANONICAL_SYSTEM |
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AC_ARG_PROGRAM |
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AC_PROG_INSTALL |
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# FIXME: We temporarily define our own version of AC_PROG_CC. This is |
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# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We |
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# are probably using a cross compiler, which will not be able to fully |
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# link an executable. This should really be fixed in autoconf |
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# itself. |
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AC_DEFUN(LIB_AC_PROG_CC, |
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl |
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AC_CHECK_PROG(CC, gcc, gcc) |
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if test -z "$CC"; then |
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AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) |
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) |
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fi |
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AC_PROG_CC_GNU |
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if test $ac_cv_prog_gcc = yes; then |
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GCC=yes |
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dnl Check whether -g works, even if CFLAGS is set, in case the package |
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dnl plays around with CFLAGS (such as to build both debugging and |
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dnl normal versions of a library), tasteless as that idea is. |
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ac_test_CFLAGS="${CFLAGS+set}" |
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ac_save_CFLAGS="$CFLAGS" |
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CFLAGS= |
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AC_PROG_CC_G |
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if test "$ac_test_CFLAGS" = set; then |
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CFLAGS="$ac_save_CFLAGS" |
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elif test $ac_cv_prog_cc_g = yes; then |
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CFLAGS="-g -O2" |
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else |
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CFLAGS="-O2" |
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fi |
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else |
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GCC= |
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test "${CFLAGS+set}" = set || CFLAGS="-g" |
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fi |
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]) |
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LIB_AC_PROG_CC |
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AS=${AS-as} |
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AC_SUBST(AS) |
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AR=${AR-ar} |
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AC_SUBST(AR) |
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LD=${LD-ld} |
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AC_SUBST(LD) |
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AC_PROG_RANLIB |
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host_makefile_frag=${srcdir}/../config/default.mh |
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dnl We have to assign the same value to other variables because autoconf |
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dnl doesn't provide a mechanism to substitute a replacement keyword with |
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dnl arbitrary data or pathnames. |
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dnl |
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host_makefile_frag_path=$host_makefile_frag |
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AC_SUBST(host_makefile_frag_path) |
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AC_SUBST_FILE(host_makefile_frag) |
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AC_OUTPUT(Makefile, |
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. ${libgloss_topdir}/config-ml.in, |
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srcdir=${srcdir} |
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target=${target} |
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ac_configure_args="${ac_configure_args} --enable-multilib" |
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
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libgloss_topdir=${libgloss_topdir} |
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) |
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@ -0,0 +1,231 @@ |
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/* crt0.S -- startup file for frv. |
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* |
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* Copyright (c) 2002 Red Hat, Inc |
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* |
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* The authors hereby grant permission to use, copy, modify, distribute, |
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* and license this software and its documentation for any purpose, provided |
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* that existing copyright notices are retained in all copies and that this |
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* notice is included verbatim in any distributions. No written agreement, |
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* license, or royalty fee is required for any of the authorized uses. |
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* Modifications to this software may be copyrighted by their authors |
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* and need not follow the licensing terms described here, provided that |
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* the new terms are clearly indicated on the first page of each file where |
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* they apply. |
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*/ |
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#include <frv-asm.h> |
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/* statically store .Lcall's address so we can see if we are running |
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at the location we were linked for or a different location. */ |
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.data |
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.type EXT(__start_cmp),@object |
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.size EXT(__start_cmp),4 |
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.p2align 2 |
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EXT(__start_cmp): |
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.picptr .Lcall |
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.globl __start |
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.weak _start |
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.text |
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.type __start,@function |
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__start: |
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_start: |
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call .Lcall /* set up _gp in a pic-friendly manor */ |
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.Lcall: movsg lr, gr4 |
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P(sethi) #gprelhi(.Lcall), gr5 |
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setlo #gprello(.Lcall), gr5 |
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P(sub) gr4, gr5, gr16 |
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sethi #gprelhi(EXT(_stack)), sp /* load up stack pointer */ |
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P(setlo) #gprello(EXT(_stack)), sp |
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setlos #0, fp /* zero fp to allow unwinders to stop */ |
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P(add) sp, gr16, sp |
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sethi #gprelhi(EXT(__start_cmp)), gr5 |
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setlo #gprello(EXT(__start_cmp)), gr5 |
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ld @(gr5,gr16), gr6 |
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subcc gr4, gr6, gr8, icc0 |
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beq icc0, 0, .Lfixed |
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P(st) gr4, @(gr5, gr16) /* update so if we restart no need to fixup */ |
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/* fixup the .ctors list */ |
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sethi #gprelhi(EXT(__CTOR_LIST__)), gr9 |
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P(sethi) #gprelhi(EXT(__CTOR_END__)), gr10 |
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setlo #gprello(EXT(__CTOR_LIST__)), gr9 |
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P(setlo) #gprello(EXT(__CTOR_END__)), gr10 |
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add gr9, gr16, gr9 |
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P(add) gr10, gr16, gr10 |
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addi gr9, 4, gr9 |
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P(subi) gr10, 4, gr10 |
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setlos 4, gr11 |
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call EXT(__frv_fixptrs) |
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/* fixup the .dtors list */ |
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P(sethi) #gprelhi(EXT(__DTOR_LIST__)), gr9 |
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sethi #gprelhi(EXT(__DTOR_END__)), gr10 |
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P(setlo) #gprello(EXT(__DTOR_LIST__)), gr9 |
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setlo #gprello(EXT(__DTOR_END__)), gr10 |
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P(add) gr9, gr16, gr9 |
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add gr10, gr16, gr10 |
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P(addi) gr9, 4, gr9 |
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subi gr10, 4, gr10 |
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call EXT(__frv_fixptrs) |
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/* fixup the .dtors list */ |
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P(sethi) #gprelhi(EXT(__ROFIXUP_LIST__)), gr9 |
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sethi #gprelhi(EXT(__ROFIXUP_END__)), gr10 |
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P(setlo) #gprello(EXT(__ROFIXUP_LIST__)), gr9 |
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setlo #gprello(EXT(__ROFIXUP_END__)), gr10 |
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P(add) gr9, gr16, gr9 |
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add gr10, gr16, gr10 |
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call EXT(__frv_fix_usrptrs) |
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.Lfixed: |
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/* HSR flags */ |
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#define HSR_ICE 0x80000000 /* Instruction cache enable */ |
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#define HSR_DCE 0x40000000 /* Data cache enable */ |
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#define HSR_CBM 0x08000000 /* Cache copy back mode */ |
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#define HSR_EIMM 0x04000000 /* Enable Instruction MMU */ |
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#define HSR_EDMM 0x02000000 /* Enable Data MMU */ |
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#define HSR_EMEM 0x00800000 /* Enable MMU miss exception mask */ |
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#define HSR_RME 0x00400000 /* Ram mode enable */ |
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#define HSR_SA 0x00001000 /* Start address */ |
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#define HSR_FRN 0x00000800 /* Number of FPRs */ |
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#define HSR_GRN 0x00000400 /* Number of GPRs */ |
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#define HSR_FRHE 0x00000200 /* FR Higher Enable */ |
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#define HSR_FRLE 0x00000100 /* FR Lower Enable */ |
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#define HSR_GRHE 0x00000080 /* GR Higher Enable */ |
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#define HSR_GRLE 0x00000040 /* GR Lower Enable */ |
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#ifndef HSR_CLEAR |
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#define HSR_CLEAR 0 |
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#endif |
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#ifndef HSR_SET |
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#ifndef FRV_NO_CACHE |
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#define HSR_SET (HSR_ICE|HSR_DCE|HSR_FRHE|HSR_FRLE|HSR_GRHE|HSR_GRLE) |
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#else |
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#define HSR_SET (HSR_FRHE|HSR_FRLE|HSR_GRHE|HSR_GRLE) |
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#endif |
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#endif |
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/* PSR flags */ |
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#define PSR_ICE 0x00010000 /* In circuit emulation mode */ |
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#define PSR_NEM 0x00004000 /* Non-exception mode */ |
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#define PSR_CM 0x00002000 /* Conditional mode */ |
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#define PSR_BE 0x00001000 /* Big endian mode */ |
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#define PSR_EF 0x00000100 /* Enable floating point */ |
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#define PSR_EM 0x00000080 /* Enable media instructions */ |
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#define PSR_S 0x00000004 /* Enable supervisor mode */ |
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#define PSR_PS 0x00000002 /* Previous supervisor mode */ |
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#define PSR_ET 0x00000001 /* Enable interrupts */ |
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#ifndef PSR_CLEAR |
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#if __FRV_FPR__ |
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#define PSR_CLEAR 0 |
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#else |
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#define PSR_CLEAR (PSR_EF|PSR_EM) |
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#endif |
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#endif |
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#ifndef PSR_SET |
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#if __FRV_FPR__ |
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#define PSR_SET (PSR_NEM|PSR_CM|PSR_EF|PSR_EM) |
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#else |
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#define PSR_SET (PSR_NEM|PSR_CM) |
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#endif |
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#endif |
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/* Enable floating point */ |
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movsg hsr0, gr4 |
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P(sethi) #hi(HSR_SET), gr5 |
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setlo #lo(HSR_SET), gr5 |
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P(sethi) #hi(~HSR_CLEAR), gr6 |
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setlo #lo(~HSR_CLEAR), gr6 |
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or gr4, gr5, gr4 |
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and gr4, gr6, gr4 |
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movgs gr4, hsr0 |
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movsg psr, gr4 |
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P(sethi) #hi(PSR_SET), gr5 |
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setlo #lo(PSR_SET), gr5 |
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P(sethi) #hi(~PSR_CLEAR), gr6 |
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setlo #lo(~PSR_CLEAR), gr6 |
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or gr4, gr5, gr4 |
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and gr4, gr6, gr4 |
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movgs gr4, psr |
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/* zero the bss area */ |
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P(sethi) #gprelhi(__bss_start), gr8 |
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sethi #gprelhi(__end), gr4 |
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P(setlo) #gprello(__bss_start), gr8 |
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setlo #gprello(__end), gr4 |
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P(add) gr8, gr16, gr8 |
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add gr4, gr16, gr4 |
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P(setlos) #0, gr9 |
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sub gr4, gr8, gr10 |
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call EXT(memset) |
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P(setlos) #0, gr8 /* zero argc, argv, envp */ |
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setlos #0, gr9 |
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P(setlos) #0, gr10 |
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call EXT(main) |
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call EXT(exit) |
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.Lend: |
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.size __start,(.Lend-__start) |
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/* Routine to adjust pointers |
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gr8 = difference to adjust by |
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gr9 = starting address |
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gr10 = ending address + 4 |
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gr11 = amount to add to the pointer each iteration. */ |
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.globl EXT(__frv_fixptrs) |
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.type EXT(__frv_fixptrs),@function |
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EXT(__frv_fixptrs): |
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P(sub) gr9, gr11, gr9 |
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sub gr10, gr11, gr10 |
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.Lloop2: |
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cmp gr10, gr9, icc0 |
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bls icc0, 0, .Lret2 |
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ldu @(gr9,gr11), gr5 |
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add gr8, gr5, gr5 |
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P(st) gr5, @(gr9,gr0) |
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bra .Lloop2 |
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.Lret2: ret |
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.Lend2: |
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.size EXT(__frv_fixptrs),.Lend2-EXT(__frv_fixptrs) |
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/* Routine to adjust statically initialized pointers |
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Note since these are pointers to pointers, they |
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need to be adjusted themsevles. |
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gr8 = difference to adjust by |
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gr9 = starting address |
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gr10 = ending address + 4 |
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gr11 = amount to add to the pointer each iteration. */ |
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.globl EXT(__frv_fix_usrptrs) |
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.type EXT(__frv_fix_usrptrs),@function |
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EXT(__frv_fix_usrptrs): |
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P(sub) gr9, gr11, gr9 |
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sub gr10, gr11, gr10 |
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.Lloop3: |
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cmp gr10, gr9, icc0 |
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bls icc0, 0, .Lret3 |
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ldu @(gr9,gr11), gr5 |
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ld @(gr5, gr8), gr6 |
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cmp gr6, gr0, icc0 /* skip pointers initialized to 0 */ |
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beq icc0, 0, .Lloop3 |
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add gr8, gr6, gr6 |
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P(st) gr6, @(gr5,gr8) |
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bra .Lloop3 |
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.Lret3: ret |
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.Lend3: |
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.size EXT(__frv_fix_usrptrs),.Lend2-EXT(__frv_fix_usrptrs) |
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@ -0,0 +1,30 @@ |
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/* fstat.c -- get status of a file.
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* |
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* Copyright (c) 2002 Red Hat, Inc |
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* |
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* 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 |
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* they apply. |
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*/ |
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#include <sys/stat.h> |
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#include "glue.h" |
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/*
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* fstat -- Since we have no file system, we just return an error. |
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*/ |
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int |
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_DEFUN (_fstat, (fd, buf), |
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int fd _AND |
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struct stat *buf) |
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{ |
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buf->st_mode = S_IFCHR; /* Always pretend to be a tty */ |
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buf->st_blksize = 0; |
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|
|||
return (0); |
|||
} |
|||
@ -0,0 +1,25 @@ |
|||
/* getpid.c -- get the current process id.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include "glue.h" |
|||
|
|||
/*
|
|||
* getpid -- only one process, so just return 1. |
|||
*/ |
|||
int |
|||
_DEFUN (_getpid, (), |
|||
) |
|||
{ |
|||
return __MYPID; |
|||
} |
|||
@ -0,0 +1,27 @@ |
|||
/* isatty.c -- chek the terminal device.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include "glue.h" |
|||
|
|||
/*
|
|||
* isatty -- returns 1 if connected to a terminal device, |
|||
* returns 0 if not. Since we're hooked up to a |
|||
* serial port, we'll say yes _AND return a 1. |
|||
*/ |
|||
int |
|||
_DEFUN (isatty, (fd), |
|||
int fd) |
|||
{ |
|||
return (1); |
|||
} |
|||
@ -0,0 +1,30 @@ |
|||
/* kill.c -- remove a process.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include "glue.h" |
|||
|
|||
extern void _exit (int) __attribute__((__noreturn__)); |
|||
|
|||
/*
|
|||
* kill -- go out via exit... |
|||
*/ |
|||
int |
|||
_DEFUN (_kill, (pid, sig), |
|||
int pid _AND |
|||
int sig) |
|||
{ |
|||
if(pid == __MYPID) |
|||
_exit(sig); |
|||
return 0; |
|||
} |
|||
@ -0,0 +1,27 @@ |
|||
/* print.c -- print a string on the output device.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include "glue.h" |
|||
|
|||
/*
|
|||
* print -- do a raw print of a string |
|||
*/ |
|||
void |
|||
_DEFUN (_print, (ptr), |
|||
char *ptr) |
|||
{ |
|||
while (*ptr) { |
|||
outbyte (*ptr++); |
|||
} |
|||
} |
|||
@ -0,0 +1,41 @@ |
|||
/* putnum.c -- put a hex number on the output device.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include "glue.h" |
|||
|
|||
/*
|
|||
* putnum -- print a 32 bit number in hex |
|||
*/ |
|||
void |
|||
_DEFUN (_putnum, (num), |
|||
unsigned int num) |
|||
{ |
|||
char buf[9]; |
|||
int cnt; |
|||
char *ptr; |
|||
int digit; |
|||
|
|||
ptr = buf; |
|||
for (cnt = 7 ; cnt >= 0 ; cnt--) { |
|||
digit = (num >> (cnt * 4)) & 0xf; |
|||
|
|||
if (digit <= 9) |
|||
*ptr++ = (char) ('0' + digit); |
|||
else |
|||
*ptr++ = (char) ('a' - 10 + digit); |
|||
} |
|||
|
|||
*ptr = (char) 0; |
|||
print (buf); |
|||
} |
|||
@ -0,0 +1,54 @@ |
|||
/* sbrk.c -- allocate memory dynamically.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include <errno.h> |
|||
#include "glue.h" |
|||
|
|||
/* just in case, most boards have at least some memory */ |
|||
#ifndef RAMSIZE |
|||
# define RAMSIZE (caddr_t)0x100000 |
|||
#endif |
|||
|
|||
char *__heap_ptr = (char *)&_end; |
|||
|
|||
/*
|
|||
* sbrk -- changes heap size size. Get nbytes more |
|||
* RAM. We just increment a pointer in what's |
|||
* left of memory on the board. |
|||
*/ |
|||
char * |
|||
_sbrk (nbytes) |
|||
int nbytes; |
|||
{ |
|||
char *base; |
|||
char *sp; |
|||
|
|||
base = __heap_ptr; |
|||
__heap_ptr += nbytes; |
|||
|
|||
return base; |
|||
/* FIXME: We really want to make sure we don't run out of RAM, but this
|
|||
* isn't very portable. |
|||
*/ |
|||
#if 0 |
|||
if ((RAMSIZE - heap_ptr - nbytes) >= 0) { |
|||
base = heap_ptr; |
|||
heap_ptr += nbytes; |
|||
return (base); |
|||
} else { |
|||
errno = ENOMEM; |
|||
return ((char *)-1); |
|||
} |
|||
#endif |
|||
} |
|||
@ -0,0 +1,40 @@ |
|||
/* |
|||
* sim-close.S -- close interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- File descriptor to close. |
|||
* |
|||
* Output: |
|||
* gr8 -- 0 or -1. |
|||
* errno -- Set if an error |
|||
*/ |
|||
|
|||
.globl EXT(_close) |
|||
.type EXT(_close),@function |
|||
.weak EXT(close) |
|||
.text |
|||
EXT(_close): |
|||
EXT(close): |
|||
setlos #SYS_close,gr7 |
|||
tira gr0,#0 |
|||
ret |
|||
.Lend: |
|||
.size EXT(_close),.Lend-EXT(_close) |
|||
@ -0,0 +1,36 @@ |
|||
/* |
|||
* sim-exit.S -- _exit interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- exit value |
|||
* |
|||
* Output: |
|||
* none |
|||
*/ |
|||
|
|||
.globl EXT(_exit) |
|||
.type EXT(_exit),@function |
|||
.text |
|||
EXT(_exit): |
|||
setlos #SYS_exit,gr7 |
|||
tira gr0,#0 |
|||
.Lend: |
|||
.size EXT(_exit),.Lend-EXT(_exit) |
|||
@ -0,0 +1,26 @@ |
|||
/*
|
|||
* sim-inbyte.c -- read a character from standard input. |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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 () |
|||
{ |
|||
char c; |
|||
|
|||
if (read (0, &c, 1) <= 0) |
|||
return -1; |
|||
|
|||
return c; |
|||
} |
|||
@ -0,0 +1,42 @@ |
|||
/* |
|||
* sim-lseek.S -- write interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- File descriptor |
|||
* gr9 -- Offset |
|||
* gr10 -- Base from which offset should be taken |
|||
* |
|||
* Output: |
|||
* gr8 -- Zero on success, -1 on failure. |
|||
* errno -- Set if an error |
|||
*/ |
|||
|
|||
.globl EXT(_lseek) |
|||
.type EXT(_lseek),@function |
|||
.weak EXT(lseek) |
|||
.text |
|||
EXT(_lseek): |
|||
EXT(lseek): |
|||
setlos #SYS_lseek,gr7 |
|||
tira gr0,#0 |
|||
ret |
|||
.Lend: |
|||
.size EXT(_lseek),.Lend-EXT(_lseek) |
|||
@ -0,0 +1,42 @@ |
|||
/* |
|||
* sim-open.S -- open interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- File name to open. |
|||
* gr9 -- open mode. |
|||
* gr10 -- optionally, the permission bits to set the file to. |
|||
* |
|||
* Output: |
|||
* gr8 -- file descriptor or -1. |
|||
* errno -- Set if an error |
|||
*/ |
|||
|
|||
.globl EXT(_open) |
|||
.type EXT(_open),@function |
|||
.weak EXT(open) |
|||
.text |
|||
EXT(_open): |
|||
EXT(open): |
|||
setlos #SYS_open,gr7 |
|||
tira gr0,#0 |
|||
ret |
|||
.Lend: |
|||
.size EXT(_open),.Lend-EXT(_open) |
|||
@ -0,0 +1,42 @@ |
|||
/* |
|||
* sim-read.S -- read interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- File descriptor. |
|||
* gr9 -- Buffer to be read into. |
|||
* gr10 -- Length of the buffer. |
|||
* |
|||
* Output: |
|||
* gr8 -- Length read or -1. |
|||
* errno -- Set if an error |
|||
*/ |
|||
|
|||
.globl EXT(_read) |
|||
.type EXT(_read),@function |
|||
.weak EXT(read) |
|||
.text |
|||
EXT(_read): |
|||
EXT(read): |
|||
setlos #SYS_read,gr7 |
|||
tira gr0,#0 |
|||
ret |
|||
.Lend: |
|||
.size EXT(_read),.Lend-EXT(_read) |
|||
@ -0,0 +1,78 @@ |
|||
/* sim-time.c -- stubs so clock can be linked in.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include <errno.h> |
|||
#include <sys/time.h> |
|||
#include <sys/times.h> |
|||
#include "glue.h" |
|||
|
|||
/*
|
|||
* time -- simulator interface to return current time in seconds. |
|||
*/ |
|||
__asm__ ("\
|
|||
.text\n\ |
|||
.globl _sim_time\n\ |
|||
.type _sim_time,@function\n\ |
|||
_sim_time:\n\ |
|||
setlos #18, gr7\n\ |
|||
tira gr0, #0\n\ |
|||
ret\n\ |
|||
.Lsim:\n\ |
|||
.size _sim_time,.Lsim-_sim_time"); |
|||
|
|||
extern time_t _sim_time (void) __asm__("_sim_time"); |
|||
|
|||
|
|||
/*
|
|||
* time -- return current time in seconds. |
|||
*/ |
|||
time_t |
|||
_DEFUN (time, time (t), |
|||
time_t *t) |
|||
{ |
|||
time_t ret = _sim_time (); |
|||
|
|||
if (t) |
|||
*t = ret; |
|||
|
|||
return ret; |
|||
} |
|||
|
|||
/*
|
|||
* _times -- no clock, so return an error. |
|||
*/ |
|||
int |
|||
_DEFUN (_times, _times (buf), |
|||
struct tms *buf) |
|||
{ |
|||
errno = EINVAL; |
|||
return (-1); |
|||
} |
|||
|
|||
/*
|
|||
* _gettimeofday -- implement in terms of time, which means we can't return the |
|||
* microseconds. |
|||
*/ |
|||
int |
|||
_DEFUN (_gettimeofday, _gettimeofday (tv, tz), |
|||
struct timeval *tv _AND |
|||
struct timezone *tz) |
|||
{ |
|||
if (tz) |
|||
tz->tz_minuteswest = tz->tz_dsttime = 0; |
|||
|
|||
tv->tv_usec = 0; |
|||
tv->tv_sec = _sim_time (); |
|||
return 0; |
|||
} |
|||
@ -0,0 +1,40 @@ |
|||
/* |
|||
* sim-unlink.S -- write interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- Filename |
|||
* |
|||
* Output: |
|||
* gr8 -- Zero on success, -1 on failure. |
|||
* errno -- Set if an error |
|||
*/ |
|||
|
|||
.globl EXT(_unlink) |
|||
.type EXT(_unlink),@function |
|||
.weak EXT(unlink) |
|||
.text |
|||
EXT(_unlink): |
|||
EXT(unlink): |
|||
setlos #SYS_unlink,gr7 |
|||
tira gr0,#0 |
|||
ret |
|||
.Lend: |
|||
.size EXT(_unlink),.Lend-EXT(_unlink) |
|||
@ -0,0 +1,42 @@ |
|||
/* |
|||
* sim-write.S -- write interface for frv simulator |
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
|
|||
#include <frv-asm.h> |
|||
|
|||
#include "syscall.h" |
|||
|
|||
/* |
|||
* Input: |
|||
* gr8 -- File descriptor. |
|||
* gr9 -- String to be printed. |
|||
* gr10 -- Length of the string. |
|||
* |
|||
* Output: |
|||
* gr8 -- Length written or -1. |
|||
* errno -- Set if an error |
|||
*/ |
|||
|
|||
.globl EXT(_write) |
|||
.type EXT(_write),@function |
|||
.weak EXT(write) |
|||
.text |
|||
EXT(_write): |
|||
EXT(write): |
|||
setlos #SYS_write,gr7 |
|||
tira gr0,#0 |
|||
ret |
|||
.Lend: |
|||
.size EXT(_write),.Lend-EXT(_write) |
|||
@ -0,0 +1,30 @@ |
|||
/* stat.c -- Get the status of a file.
|
|||
* |
|||
* Copyright (c) 2002 Red Hat, Inc |
|||
* |
|||
* 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. |
|||
*/ |
|||
#include <sys/stat.h> |
|||
#include <errno.h> |
|||
#include "glue.h" |
|||
|
|||
/*
|
|||
* stat -- Since we have no file system, we just return an error. |
|||
*/ |
|||
int |
|||
_DEFUN (_stat, (path, buf), |
|||
const char *path _AND |
|||
struct stat *buf) |
|||
{ |
|||
errno = EIO; |
|||
return (-1); |
|||
} |
|||
|
|||
Loading…
Reference in new issue