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2012-09-26 Ian Bolton <ian.bolton@arm.com>

Browse Source 
Jim MacArthur  <jim.macarthur@arm.com>
        Marcus Shawcroft  <marcus.shawcroft@arm.com>
        Nigel Stephens  <nigel.stephens@arm.com>
        Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
        Richard Earnshaw  <rearnsha@arm.com>
        Sofiane Naci  <sofiane.naci@arm.com>
        Tejas Belagod  <tejas.belagod@arm.com>
        Yufeng Zhang  <yufeng.zhang@arm.com>

        * aarch64/Makefile.in: New file.
        * aarch64/_exit.c: New file.
        * aarch64/_kill.c: New file.
        * aarch64/aclocal.m4: Generated.
        * aarch64/configure: Generated.
        * aarch64/configure.in: New file.
        * aarch64/cpu-init/Makefile.in: New file.
        * aarch64/cpu-init/rdimon-aem-el3.S: New file.
        * aarch64/crt0.S: New file.
        * aarch64/elf-rdimon.specs: New file.
        * aarch64/libcfunc.c: New file.
        * aarch64/svc.h: New file.
        * aarch64/syscalls.c: New file.
        * configure.in: Add AArch64.
        * configure: Re-generated.
This commit is contained in:
Jeff Johnston
2012-09-26 20:11:54 +00:00
parent c3fe5bf771
commit cdf81c0c4c
16 changed files with 6082 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
libgloss/ChangeLog
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@@ -1,3 +1,29 @@
2012-09-26 Ian Bolton <ian.bolton@arm.com>
Jim MacArthur <jim.macarthur@arm.com>
Marcus Shawcroft <marcus.shawcroft@arm.com>
Nigel Stephens <nigel.stephens@arm.com>
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Richard Earnshaw <rearnsha@arm.com>
Sofiane Naci <sofiane.naci@arm.com>
Tejas Belagod <tejas.belagod@arm.com>
Yufeng Zhang <yufeng.zhang@arm.com>
* aarch64/Makefile.in: New file.
* aarch64/_exit.c: New file.
* aarch64/_kill.c: New file.
* aarch64/aclocal.m4: Generated.
* aarch64/configure: Generated.
* aarch64/configure.in: New file.
* aarch64/cpu-init/Makefile.in: New file.
* aarch64/cpu-init/rdimon-aem-el3.S: New file.
* aarch64/crt0.S: New file.
* aarch64/elf-rdimon.specs: New file.
* aarch64/libcfunc.c: New file.
* aarch64/svc.h: New file.
* aarch64/syscalls.c: New file.
* configure.in: Add AArch64.
* configure: Re-generated.
2012-09-13 Anthony Green <green@moxielogic.com>
* moxie/moxie-elf-common.ld: Add bi-endian support.

181
libgloss/aarch64/Makefile.in Normal file
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# Copyright (c) 2012 ARM Ltd. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the company may not be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DESTDIR =
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)
objtype = @objtype@
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
# Multilib support variables.
# TOP is used instead of MULTI{BUILD,SRC}TOP.
MULTISRCTOP =
MULTIBUILDTOP =
MULTIDIRS =
MULTISUBDIR =
MULTIDO = true
MULTICLEAN = true
SHELL = /bin/sh
CC = @CC@
AS = @AS@
AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
SUBDIRS = @subdirs@
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 = syscalls.o libcfunc.o _exit.o _kill.o
CRT0 = crt0.o
CRT0_INSTALL = install-crt0
CRT0_INSTALL = install-crt0
RDIMON_CRT0 = rdimon-crt0.o
RDIMON_BSP = librdimon.a
RDIMON_OBJS = $(patsubst %,rdimon-%,$(OBJS))
RDIMON_SCRIPTS = rdimon.specs
RDIMON_INSTALL = install-rdimon
CFLAGS = -g
# 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: ${CRT0} ${RDIMON_CRT0} ${RDIMON_BSP}
@rootpre=`pwd`/; export rootpre; \
srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
for dir in .. ${SUBDIRS}; do \
if [ x$$dir != x.. ]; then \
if [ -d $$dir ]; then \
(cd $$dir; $(MAKE) $(FLAGS_TO_PASS)); \
else true; fi; \
else true; fi; \
done
#
# here's where we build the test programs for each target
#
.PHONY: test
test:
#
crt0.o: crt0.S
rdimon-crt0.o: crt0.S
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
#rdimon-trap.o: trap.S
# $(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
rdimon-_exit.o: _exit.c
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
rdimon-_kill.o: _kill.c
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
rdimon-syscalls.o: syscalls.c
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
rdimon-libcfunc.o: libcfunc.c
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
$(RDIMON_BSP): $(RDIMON_OBJS)
${AR} ${ARFLAGS} $@ $^
${RANLIB} $@
clean mostlyclean:
rm -f a.out core *.i *.o *-test *.srec *.dis *.x $(SIM_BSP)
@rootpre=`pwd`/; export rootpre; \
srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
for dir in .. ${SUBDIRS}; do \
if [ x$$dir != x.. ]; then \
if [ -d $$dir ]; then \
(cd $$dir; $(MAKE) $(FLAGS_TO_PASS) clean); \
else true; fi; \
else true; fi; \
done
distclean maintainer-clean realclean: clean
rm -f Makefile config.status *~
.PHONY: install info install-info clean-info
install: ${CRT0_INSTALL} ${RDIMON_INSTALL}
@rootpre=`pwd`/; export rootpre; \
srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
for dir in .. ${SUBDIRS}; do \
if [ x$$dir != x.. ]; then \
if [ -d $$dir ]; then \
(cd $$dir; $(MAKE) $(FLAGS_TO_PASS) install); \
else true; fi; \
else true; fi; \
done
install-crt0:
${INSTALL_DATA} ${CRT0} $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x
install-rdimon:
set -e; for x in ${RDIMON_CRT0} ${RDIMON_BSP}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done
set -e; for x in ${RDIMON_SCRIPTS}; do ${INSTALL_DATA} ${srcdir}/${objtype}$$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$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

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libgloss/aarch64/_exit.c Normal file
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/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <_ansi.h>
#include "svc.h"
void _exit _PARAMS ((int));
__attribute__ ((noreturn)) void
_exit (int status)
{
while (1)
{
param_block_t block[2];
block[0] = ADP_Stopped_ApplicationExit;
block[1] = status;
do_AngelSVC (AngelSVC_Reason_ReportException, block);
}
}

49
libgloss/aarch64/_kill.c Normal file
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@@ -0,0 +1,49 @@
/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include <_ansi.h>
#include <signal.h>
#include <errno.h>
#include "svc.h"
int _kill _PARAMS ((int, int));
int
_kill (int pid, int sig)
{
param_block_t block[2];
if (pid == 0)
return 0;
if (pid != 1 && pid != -1)
{
errno = ESRCH;
return -1;
}
block[0] = ADP_Stopped_RunTimeError;
block[1] = sig;
return do_AngelSVC (AngelSVC_Reason_ReportException, block);
}

404
libgloss/aarch64/aclocal.m4 vendored Normal file
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# Copyright (C) 2003, 2005 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# serial 2
# Check whether the underlying file-system supports filenames
# with a leading dot. For instance MS-DOS doesn't.
AC_DEFUN([AM_SET_LEADING_DOT],
[rm -rf .tst 2>/dev/null
mkdir .tst 2>/dev/null
if test -d .tst; then
am__leading_dot=.
else
am__leading_dot=_
fi
rmdir .tst 2>/dev/null
AC_SUBST([am__leading_dot])])
# Check to see how 'make' treats includes. -*- Autoconf -*-
# Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# serial 4
# AM_MAKE_INCLUDE()
# -----------------
# Check to see how make treats includes.
AC_DEFUN([AM_MAKE_INCLUDE],
[am_make=${MAKE-make}
cat > confinc << 'END'
am__doit:
@echo this is the am__doit target
.PHONY: am__doit
END
# If we don't find an include directive, just comment out the code.
AC_MSG_CHECKING([for style of include used by $am_make])
am__include="#"
am__quote=
_am_result=none
# First try GNU make style include.
echo "include confinc" > confmf
# Ignore all kinds of additional output from `make'.
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
am__include=include
am__quote=
_am_result=GNU
;;
esac
# Now try BSD make style include.
if test "$am__include" = "#"; then
echo '.include "confinc"' > confmf
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
am__include=.include
am__quote="\""
_am_result=BSD
;;
esac
fi
AC_SUBST([am__include])
AC_SUBST([am__quote])
AC_MSG_RESULT([$_am_result])
rm -f confinc confmf
])
# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# serial 2
# _AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
# This macro is traced by Automake.
AC_DEFUN([_AM_SUBST_NOTMAKE])
# AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
# Public sister of _AM_SUBST_NOTMAKE.
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
m4_include([../acinclude.m4])

3894
libgloss/aarch64/configure vendored Executable file
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File diff suppressed because it is too large Load Diff

73
libgloss/aarch64/configure.in Normal file
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@@ -0,0 +1,73 @@
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT(crt0.S)
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
LIB_AC_PROG_CC
AS=${AS-as}
AC_SUBST(AS)
AR=${AR-ar}
AC_SUBST(AR)
LD=${LD-ld}
AC_SUBST(LD)
AC_PROG_RANLIB
LIB_AM_PROG_AS
case "${target}" in
*-*-elf)
objtype=elf-
;;
esac
AC_SUBST(objtype)
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)
# Configure cpu init plug-ins
if test -d "${srcdir}/cpu-init"; then
subdirs="${subdirs} cpu-init"
AC_CONFIG_FILES(cpu-init/Makefile,
. ${libgloss_topdir}/config-ml.in,
srcdir=${srcdir}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${ac_configure_args} --enable-multilib"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgloss_topdir=${libgloss_topdir}
)
AC_SUBST(subdirs)
fi
AC_CONFIG_FILES(Makefile,
. ${libgloss_topdir}/config-ml.in,
srcdir=${srcdir}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${ac_configure_args} --enable-multilib"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgloss_topdir=${libgloss_topdir}
)
AC_OUTPUT

110
libgloss/aarch64/cpu-init/Makefile.in Normal file
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@@ -0,0 +1,110 @@
# Copyright (c) 2012 ARM Ltd. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the company may not be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DESTDIR =
VPATH = @srcdir@ @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)
objtype = @objtype@
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
# Multilib support variables.
# TOP is used instead of MULTI{BUILD,SRC}TOP.
MULTISRCTOP =
MULTIBUILDTOP =
MULTIDIRS =
MULTISUBDIR =
MULTIDO = true
MULTICLEAN = true
SHELL = /bin/sh
CC = @CC@
AS = @AS@
AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
CPU_INIT_OBJS = rdimon-aem-el3.o
CPU_INIT_INSTALL = install-cpu-init
CFLAGS = -g
# Host specific makefile fragment comes in here.
@host_makefile_frag@
.PHONY: all
all: ${CPU_INIT_OBJS}
#
# here's where we build the test programs for each target
#
.PHONY: test
test:
# Static pattern rule for assembling cpu init files to object files.
${CPU_INIT_OBJS}: %.o: %.S
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
clean mostlyclean:
rm -f a.out core *.i *.o *-test *.srec *.dis *.x
distclean maintainer-clean realclean: clean
rm -f Makefile *~
.PHONY: install info install-info clean-info
install: ${CPU_INIT_INSTALL}
install-cpu-init:
test -d $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/cpu-init || mkdir $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/cpu-init
set -e; for x in ${CPU_INIT_OBJS}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/cpu-init/$$x; done
doc:
info:
install-info:
clean-info:
Makefile: Makefile.in ../config.status @host_makefile_frag_path@
$(SHELL) ../config.status --file cpu-init/Makefile
../config.status: ../configure
$(SHELL) ../config.status --recheck

167
libgloss/aarch64/cpu-init/rdimon-aem-el3.S Normal file
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/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include "newlib.h"
#include "svc.h"
/* ANSI concatenation macros. */
#define CONCAT(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
#ifdef __USER_LABEL_PREFIX__
#define FUNCTION( name ) CONCAT (__USER_LABEL_PREFIX__, name)
#else
#error __USER_LABEL_PREFIX is not defined
#endif
.text
.align 2
_init_vectors:
/* Installs a table of exception vectors to catch and handle all
exceptions by terminating the process with a diagnostic. */
adr x0, vectors
msr vbar_el3, x0
msr vbar_el2, x0
msr vbar_el1, x0
ret
curr_sp0_sync:
curr_sp0_irq:
curr_sp0_fiq:
curr_sp0_serror:
curr_spx_sync:
curr_spx_irq:
curr_spx_fiq:
curr_spx_serror:
lower_a64_sync:
lower_a64_irq:
lower_a64_fiq:
lower_a64_serror:
lower_a32_sync:
lower_a32_irq:
lower_a32_fiq:
lower_a32_serror:
mov x0, 2
adr x1, .LC3
mov x2, 26
bl FUNCTION (write)
mov x0, 126
b FUNCTION (exit) /* Cannot return. */
.LC3:
.string "Terminated by exception.\n"
.macro ventry label
.align 7
b \label
.endm
.align 7
/* AArch64 Exception Model -- 3.5.5 Exception Vectors. */
vectors:
/* Current EL with SP0. */
ventry curr_sp0_sync /* Synchronous */
ventry curr_sp0_irq /* Irq/vIRQ */
ventry curr_sp0_fiq /* Fiq/vFIQ */
ventry curr_sp0_serror /* SError/VSError */
/* Current EL with SPx. */
ventry curr_spx_sync /* Synchronous */
ventry curr_spx_irq /* IRQ/vIRQ */
ventry curr_spx_fiq /* FIQ/vFIQ */
ventry curr_spx_serror /* SError/VSError */
/* Lower EL using AArch64. */
ventry lower_a64_sync /* Synchronous */
ventry lower_a64_irq /* IRQ/vIRQ */
ventry lower_a64_fiq /* FIQ/vFIQ */
ventry lower_a64_serror /* SError/VSError */
/* Lower EL using AArch32. */
ventry lower_a32_sync /* Synchronous */
ventry lower_a32_irq /* IRQ/vIRQ */
ventry lower_a32_fiq /* FIQ/vFIQ */
ventry lower_a32_serror /* SError/VSError */
.text
.align 2
_flat_map:
/* Page table setup (identity mapping). */
adrp x0, ttb
add x0, x0, :lo12:ttb
msr ttbr0_el3, x0
adr x1, . /* phys address */
bic x1, x1, #(1 << 30) - 1 /* 1GB block alignment */
add x2, x0, x1, lsr #(30 - 3) /* offset in level 1 page
table */
mov x3, #0x401 /* page table attributes
(AF, block) */
orr x1, x1, x3
mov x3, #(1 << 30) /* 1GB block */
str x1, [x2], #8 /* 1st GB */
add x1, x1, x3
str x1, [x2] /* 2nd GB */
/* Setup/enable the MMU. */
/* RES1, RES1, 40-bit PA, 39-bit VA, inner/outer cacheable WB */
ldr x0, =(1 << 31) | (1 << 23) | (2 << 16) | 25 | (3 << 10) | (3 << 8)
msr tcr_el3, x0
mov x0, #0xee /* Inner/outer cacheable WB */
msr mair_el3, x0
isb
mrs x0, sctlr_el3
ldr x1, =0x100d /* bits I(12) SA(3) C(2) M(0) */
bic x0, x0, #2 /* clear bit A(1) */
orr x0, x0, x1 /* set bits */
msr sctlr_el3, x0
isb
ret
.data
.align 12
ttb:
.space 4096, 0
.text
.align 2
.global FUNCTION (_cpu_init_hook)
.type FUNCTION (_cpu_init_hook), %function
FUNCTION (_cpu_init_hook):
sub sp, sp, #16
str x30, [sp, xzr]
bl _init_vectors
bl _flat_map
ldr x30, [sp, xzr]
add sp, sp, #16
ret
.size FUNCTION (_cpu_init_hook), .-FUNCTION (_cpu_init_hook)

203
libgloss/aarch64/crt0.S Normal file
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@@ -0,0 +1,203 @@
/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#include "newlib.h"
#include "svc.h"
/* ANSI concatenation macros. */
#define CONCAT(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
#ifdef __USER_LABEL_PREFIX__
#define FUNCTION( name ) CONCAT (__USER_LABEL_PREFIX__, name)
#else
#error __USER_LABEL_PREFIX is not defined
#endif
#ifdef HAVE_INITFINI_ARRAY
#define _init __libc_init_array
#define _fini __libc_fini_array
#endif
.text
.macro FUNC_START name
.global \name
\name:
.endm
.align 2
FUNC_START _mainCRTStartup
FUNC_START _start
FUNC_START start
/* Start by setting up a stack */
/* Issue Angel SVC to read memory info.
ptr to ptr to 4 words to receive data. */
adr x1, .LC0
mov w0, #AngelSVC_Reason_HeapInfo
AngelSVCAsm AngelSVC
/* Initialise the stack pointer */
/* We currently choose to use the heap_limit field rather than
stack_base because the AEM validation model
returns sane values in the heap fields, but 0 in the stack
fields. Note on the VE AEM model it is necessary to pass
command line options to the AEM in order to define the values
exposed here in the HeapInfo Angel call. */
ldr x0, .LC0 /* point at returned values */
ldr x0, [x0, #8] /* get heap_limit */
/* Ensure quad-word stack alignment. */
and x0, x0, #~15
mov sp, x0
/* Setup an initial dummy frame with saved fp=0 and saved lr=0 */
mov x29, 0
stp x29, x29, [sp, #-16]!
mov x29, sp
/* Initialize exception vector table, flatmap, etc. */
bl FUNCTION (_cpu_init_hook)
/* Zero the memory in the .bss section. */
ldr x0, .LC1 /* First arg: start of memory block */
mov w1, #0 /* Second arg: fill value */
ldr x2, .LC2
sub x2, x2, x0 /* Third arg: length of block */
bl FUNCTION (memset)
/* Need to set up standard file handles */
bl FUNCTION (initialise_monitor_handles)
/* .init and .fini sections are used to create constructors
and destructors. Here we call the _init function and arrange
for _fini to be called at program exit. */
ldr x0, .Lfini
bl FUNCTION (atexit)
bl FUNCTION (_init)
/* Fetch and parse the command line. */
adr x1, .Lcmdline /* Command line descriptor. */
mov w0, #AngelSVC_Reason_GetCmdLine
AngelSVCAsm AngelSVC
ldr x8, .Lcmdline
mov x0, #0 /* argc */
mov x1, sp /* argv */
ldr x2, .Lenvp /* envp */
/* Put NULL at end of argv array. */
str x0, [x1, #-8]!
/* Skip leading blanks. */
.Lnext: ldrb w3, [x8], #1
cbz w3, .Lendstr
cmp w3, #' '
b.eq .Lnext
mov w4, #' ' /* Terminator is space. */
/* See whether we are scanning a quoted string by checking for
opening quote (" or '). */
subs w9, w3, #'\"'
sub x8, x8, #1 /* Backup if no match. */
ccmp w9, #('\'' - '\"'), 0x4 /* FLG_Z */, ne
csel w4, w3, w4, eq /* Terminator = quote if match. */
cinc x8, x8, eq
/* Push arg pointer to argv, and bump argc. */
str x8, [x1, #-8]!
add x0, x0, #1
/* Find end of arg string. */
1: ldrb w3, [x8], #1
cbz w3, .Lendstr
cmp w4, w3 /* Reached terminator? */
b.ne 1b
/* Terminate the arg string with NUL char. */
mov w4, #0
strb w4, [x8, #-1]
b .Lnext
/* Reverse argv array. */
.Lendstr:
add x3, x1, #0 /* sp = &argv[0] */
add x4, x1, w0, uxtw #3 /* ep = &argv[argc] */
cmp x4, x3
b.lo 2f
1: ldr x5, [x4, #-8] /* x5 = ep[-1] */
ldr x6, [x3] /* x6 = *sp */
str x6, [x4, #-8]! /* *--ep = x6 */
str x5, [x3], #8 /* *sp++ = x5 */
cmp x4, x3
b.hi 1b
2:
/* Move sp to the 16B boundary below argv. */
and x4, x1, ~15
mov sp, x4
bl FUNCTION (main)
b FUNCTION (exit) /* Cannot return. */
/* Function initializing exception vector table, flatmap, etc.
Declared as weak symbol so that user can override this definition
by linking in their own version of the function. */
.weak FUNCTION (_cpu_init_hook)
FUNCTION (_cpu_init_hook):
ret
.align 3
.LC0:
.dword HeapBase
.LC1:
.dword __bss_start__
.LC2:
.dword __bss_end__
.Lfini:
.dword FUNCTION(_fini)
.Lenvp:
.dword env
.Lcmdline:
.dword CommandLine
.dword 255
/* Workspace for Angel calls. */
.data
.align 3
/* Data returned by monitor SVC. */
.global __stack_base__
HeapBase: .dword 0
HeapLimit: .dword 0
__stack_base__: .dword 0
StackLimit: .dword 0
env: .dword 0 /* Dummy environment array */
CommandLine: .space 256,0 /* Maximum length of 255 chars handled. */

7
libgloss/aarch64/elf-rdimon.specs Normal file
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@@ -0,0 +1,7 @@
%rename lib libc
*libgloss:
-lrdimon
*lib:
--start-group %(libc) %(libgloss) --end-group

91
libgloss/aarch64/libcfunc.c Normal file
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@@ -0,0 +1,91 @@
/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* Support files for GNU libc. Files in the C namespace go here.
Files in the system namespace (ie those that start with an underscore)
go in syscalls.c.
Note: These functions are in a seperate file so that OS providers can
overrride the system call stubs (defined in syscalls.c) without having
to provide libc funcitons as well. */
#include "svc.h"
#include <errno.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
extern clock_t _clock (void);
extern int _isatty (int);
unsigned __attribute__((weak))
alarm (unsigned seconds)
{
(void) seconds;
return 0;
}
clock_t __attribute__((weak))
clock (void)
{
return _clock ();
}
int __attribute__((weak))
isatty (int fildes)
{
return _isatty (fildes);
}
int __attribute__((weak))
pause (void)
{
errno = ENOSYS;
return -1;
}
unsigned __attribute__((weak))
sleep (unsigned seconds)
{
clock_t t0 = _clock ();
clock_t dt = seconds * CLOCKS_PER_SEC;
while (_clock () - t0 < dt)
;
return 0;
}
int __attribute__((weak))
usleep (useconds_t useconds)
{
clock_t t0 = _clock ();
clock_t dt = useconds / (1000000 / CLOCKS_PER_SEC);
while (_clock () - t0 < dt)
;
return 0;
}

75
libgloss/aarch64/svc.h Normal file
View File

@@ -0,0 +1,75 @@
/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* Now the SWI numbers and reason codes for RDI (Angel) monitors. */
#define AngelSVC 0xF000
#define AngelSVCInsn "hlt"
#define AngelSVCAsm hlt
/* The reason codes: */
#define AngelSVC_Reason_Open 0x01
#define AngelSVC_Reason_Close 0x02
#define AngelSVC_Reason_WriteC 0x03
#define AngelSVC_Reason_Write0 0x04
#define AngelSVC_Reason_Write 0x05
#define AngelSVC_Reason_Read 0x06
#define AngelSVC_Reason_ReadC 0x07
#define AngelSVC_Reason_IsTTY 0x09
#define AngelSVC_Reason_Seek 0x0A
#define AngelSVC_Reason_FLen 0x0C
#define AngelSVC_Reason_TmpNam 0x0D
#define AngelSVC_Reason_Remove 0x0E
#define AngelSVC_Reason_Rename 0x0F
#define AngelSVC_Reason_Clock 0x10
#define AngelSVC_Reason_Time 0x11
#define AngelSVC_Reason_System 0x12
#define AngelSVC_Reason_Errno 0x13
#define AngelSVC_Reason_GetCmdLine 0x15
#define AngelSVC_Reason_HeapInfo 0x16
#define AngelSVC_Reason_EnterSVC 0x17
#define AngelSVC_Reason_ReportException 0x18
#define AngelSVC_Reason_SyncCacheRange 0x19
#define AngelSVC_Reason_Elapsed 0x30
#define ADP_Stopped_ApplicationExit ((2 << 16) + 38)
#define ADP_Stopped_RunTimeError ((2 << 16) + 35)
#if defined(ARM_RDI_MONITOR) && !defined(__ASSEMBLER__)
/* Type of each entry in a parameter block. */
typedef long long param_block_t;
static inline long long
do_AngelSVC (int reason, param_block_t * arg)
{
long long value;
asm volatile ("mov w0, %w1; mov x1, %2; " AngelSVCInsn " %3; mov %0, x0"
: "=r" (value) /* Outputs */
: "r" (reason), "r" (arg), "n" (AngelSVC) /* Inputs */
: "x0", "x1", "x2", "x3", "x17", "x30", "memory", "cc"
/* Clobbers x0 and x1, and lr if in supervisor mode */);
return value;
}
#endif

751
libgloss/aarch64/syscalls.c Normal file
View File

@@ -0,0 +1,751 @@
/* Copyright (c) 2009, 2010, 2011, 2012 ARM Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the company may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* Support files for GNU libc. Files in the system namespace go here.
Files in the C namespace (ie those that do not start with an
underscore) go in .c. */
#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
#include <errno.h>
#include <reent.h>
#include <unistd.h>
#include <sys/wait.h>
#include "svc.h"
/* Forward prototypes. */
int _system _PARAMS ((const char *));
int _rename _PARAMS ((const char *, const char *));
int _isatty _PARAMS ((int));
clock_t _times _PARAMS ((struct tms *));
int _gettimeofday _PARAMS ((struct timeval *, void *));
int _unlink _PARAMS ((const char *));
int _link _PARAMS ((void));
int _stat _PARAMS ((const char *, struct stat *));
int _fstat _PARAMS ((int, struct stat *));
int _swistat _PARAMS ((int fd, struct stat * st));
caddr_t _sbrk _PARAMS ((int));
int _getpid _PARAMS ((int));
int _close _PARAMS ((int));
clock_t _clock _PARAMS ((void));
int _swiclose _PARAMS ((int));
int _open _PARAMS ((const char *, int, ...));
int _swiopen _PARAMS ((const char *, int));
int _write _PARAMS ((int, char *, int));
int _swiwrite _PARAMS ((int, char *, int));
int _lseek _PARAMS ((int, int, int));
int _swilseek _PARAMS ((int, int, int));
int _read _PARAMS ((int, char *, int));
int _swiread _PARAMS ((int, char *, int));
void initialise_monitor_handles _PARAMS ((void));
static int checkerror _PARAMS ((int));
static int error _PARAMS ((int));
static int get_errno _PARAMS ((void));
/* Struct used to keep track of the file position, just so we
can implement fseek(fh,x,SEEK_CUR). */
struct fdent
{
int handle;
int flags;
ino_t ino;
int pos;
};
#define MAX_OPEN_FILES 20
/* User file descriptors (fd) are integer indexes into
the openfiles[] array. Error checking is done by using
findslot().
This openfiles array is manipulated directly by only
these 5 functions:
findslot() - Translate entry.
newslot() - Find empty entry.
initilise_monitor_handles() - Initialize entries.
_swiopen() - Initialize entry.
_close() - Handle stdout == stderr case.
Every other function must use findslot(). */
static struct fdent openfiles[MAX_OPEN_FILES];
static struct fdent *findslot _PARAMS ((int));
static int newslot _PARAMS ((void));
/* Register name faking - works in collusion with the linker. */
register char * stack_ptr asm ("sp");
/* following is copied from libc/stdio/local.h to check std streams */
extern void _EXFUN (__sinit, (struct _reent *));
#define CHECK_INIT(ptr) \
do \
{ \
if ((ptr) && !(ptr)->__sdidinit) \
__sinit (ptr); \
} \
while (0)
static int monitor_stdin;
static int monitor_stdout;
static int monitor_stderr;
/* Return a pointer to the structure associated with
the user file descriptor fd. */
static struct fdent *
findslot (int fd)
{
CHECK_INIT (_REENT);
/* User file descriptor is out of range. */
if ((unsigned int) fd >= MAX_OPEN_FILES)
return NULL;
/* User file descriptor is open? */
if (openfiles[fd].handle == -1)
return NULL;
/* Valid. */
return &openfiles[fd];
}
/* Return the next lowest numbered free file
structure, or -1 if we can't find one. */
static int
newslot (void)
{
int i;
for (i = 0; i < MAX_OPEN_FILES; i++)
if (openfiles[i].handle == -1)
break;
if (i == MAX_OPEN_FILES)
return -1;
return i;
}
void
initialise_monitor_handles (void)
{
int i;
/* Open the standard file descriptors by opening the special
* teletype device, ":tt", read-only to obtain a descritpor for
* standard input and write-only to obtain a descriptor for standard
* output. Finally, open ":tt" in append mode to obtain a descriptor
* for standard error. Since this is a write mode, most kernels will
* probably return the same value as for standard output, but the
* kernel can differentiate the two using the mode flag and return a
* different descriptor for standard error.
*/
param_block_t block[3];
block[0] = (param_block_t) ":tt";
block[2] = 3; /* length of filename */
block[1] = 0; /* mode "r" */
monitor_stdin = do_AngelSVC (AngelSVC_Reason_Open, block);
block[0] = (param_block_t) ":tt";
block[2] = 3; /* length of filename */
block[1] = 4; /* mode "w" */
monitor_stdout = do_AngelSVC (AngelSVC_Reason_Open, block);
block[0] = (param_block_t) ":tt";
block[2] = 3; /* length of filename */
block[1] = 8; /* mode "a" */
monitor_stderr = do_AngelSVC (AngelSVC_Reason_Open, block);
/* If we failed to open stderr, redirect to stdout. */
if (monitor_stderr == -1)
monitor_stderr = monitor_stdout;
for (i = 0; i < MAX_OPEN_FILES; i++)
openfiles[i].handle = -1;
openfiles[0].handle = monitor_stdin;
openfiles[0].flags = _FREAD;
openfiles[0].pos = 0;
openfiles[1].handle = monitor_stdout;
openfiles[0].flags = _FWRITE;
openfiles[1].pos = 0;
openfiles[2].handle = monitor_stderr;
openfiles[0].flags = _FWRITE;
openfiles[2].pos = 0;
}
static int
get_errno (void)
{
return do_AngelSVC (AngelSVC_Reason_Errno, NULL);
}
/* Set errno and return result. */
static int
error (int result)
{
errno = get_errno ();
return result;
}
/* Check the return and set errno appropriately. */
static int
checkerror (int result)
{
if (result == -1)
return error (-1);
return result;
}
/* fh, is a valid internal file handle.
ptr, is a null terminated string.
len, is the length in bytes to read.
Returns the number of bytes *not* written. */
int
_swiread (int fh, char *ptr, int len)
{
param_block_t block[3];
block[0] = fh;
block[1] = (param_block_t) ptr;
block[2] = len;
return checkerror (do_AngelSVC (AngelSVC_Reason_Read, block));
}
/* fd, is a valid user file handle.
Translates the return of _swiread into
bytes read. */
int
_read (int fd, char *ptr, int len)
{
int res;
struct fdent *pfd;
pfd = findslot (fd);
if (pfd == NULL)
{
errno = EBADF;
return -1;
}
res = _swiread (pfd->handle, ptr, len);
if (res == -1)
return res;
pfd->pos += len - res;
/* res == len is not an error,
at least if we want feof() to work. */
return len - res;
}
/* fd, is a user file descriptor. */
int
_swilseek (int fd, int ptr, int dir)
{
int res;
struct fdent *pfd;
/* Valid file descriptor? */
pfd = findslot (fd);
if (pfd == NULL)
{
errno = EBADF;
return -1;
}
/* Valid whence? */
if ((dir != SEEK_CUR) && (dir != SEEK_SET) && (dir != SEEK_END))
{
errno = EINVAL;
return -1;
}
/* Convert SEEK_CUR to SEEK_SET */
if (dir == SEEK_CUR)
{
ptr = pfd->pos + ptr;
/* The resulting file offset would be negative. */
if (ptr < 0)
{
errno = EINVAL;
if ((pfd->pos > 0) && (ptr > 0))
errno = EOVERFLOW;
return -1;
}
dir = SEEK_SET;
}
param_block_t block[2];
if (dir == SEEK_END)
{
block[0] = pfd->handle;
res = checkerror (do_AngelSVC (AngelSVC_Reason_FLen, block));
if (res == -1)
return -1;
ptr += res;
}
/* This code only does absolute seeks. */
block[0] = pfd->handle;
block[1] = ptr;
res = checkerror (do_AngelSVC (AngelSVC_Reason_Seek, block));
/* At this point ptr is the current file position. */
if (res >= 0)
{
pfd->pos = ptr;
return ptr;
}
else
return -1;
}
_lseek (int fd, int ptr, int dir)
{
return _swilseek (fd, ptr, dir);
}
/* fh, is a valid internal file handle.
Returns the number of bytes *not* written. */
int
_swiwrite (int fh, char *ptr, int len)
{
param_block_t block[3];
block[0] = fh;
block[1] = (param_block_t) ptr;
block[2] = len;
return checkerror (do_AngelSVC (AngelSVC_Reason_Write, block));
}
/* fd, is a user file descriptor. */
int
_write (int fd, char *ptr, int len)
{
int res;
struct fdent *pfd;
pfd = findslot (fd);
if (pfd == NULL)
{
errno = EBADF;
return -1;
}
res = _swiwrite (pfd->handle, ptr, len);
/* Clearly an error. */
if (res < 0)
return -1;
pfd->pos += len - res;
/* We wrote 0 bytes?
Retrieve errno just in case. */
if ((len - res) == 0)
return error (0);
return (len - res);
}
int
_swiopen (const char *path, int flags)
{
int aflags = 0, fh;
param_block_t block[3];
static ino_t ino = 1;
int fd;
if (path == NULL)
{
errno = ENOENT;
return -1;
}
fd = newslot ();
if (fd == -1)
{
errno = EMFILE;
return -1;
}
/* It is an error to open a file that already exists. */
if ((flags & O_CREAT) && (flags & O_EXCL))
{
struct stat st;
int res;
res = _stat (path, &st);
if (res != -1)
{
errno = EEXIST;
return -1;
}
}
/* The flags are Unix-style, so we need to convert them. */
#ifdef O_BINARY
if (flags & O_BINARY)
aflags |= 1;
#endif
/* In O_RDONLY we expect aflags == 0. */
if (flags & O_RDWR)
aflags |= 2;
if ((flags & O_CREAT) || (flags & O_TRUNC) || (flags & O_WRONLY))
aflags |= 4;
if (flags & O_APPEND)
{
/* Can't ask for w AND a; means just 'a'. */
aflags &= ~4;
aflags |= 8;
}
block[0] = (param_block_t) path;
block[2] = strlen (path);
block[1] = aflags;
fh = do_AngelSVC (AngelSVC_Reason_Open, block);
/* Return a user file descriptor or an error. */
if (fh >= 0)
{
openfiles[fd].handle = fh;
openfiles[fd].flags = flags + 1;
openfiles[fd].ino = ino++;
openfiles[fd].pos = 0;
return fd;
}
else
return error (fh);
}
int
_open (const char *path, int flags, ...)
{
return _swiopen (path, flags);
}
/* fh, is a valid internal file handle. */
int
_swiclose (int fh)
{
param_block_t param[1];
param[0] = fh;
return checkerror (do_AngelSVC (AngelSVC_Reason_Close, param));
}
/* fd, is a user file descriptor. */
int
_close (int fd)
{
int res;
struct fdent *pfd;
pfd = findslot (fd);
if (pfd == NULL)
{
errno = EBADF;
return -1;
}
/* Handle stderr == stdout. */
if ((fd == 1 || fd == 2) && (openfiles[1].handle == openfiles[2].handle))
{
pfd->handle = -1;
return 0;
}
/* Attempt to close the handle. */
res = _swiclose (pfd->handle);
/* Reclaim handle? */
if (res == 0)
pfd->handle = -1;
return res;
}
int __attribute__((weak))
_getpid (int n __attribute__ ((unused)))
{
return 1;
}
caddr_t
_sbrk (int incr)
{
extern char end asm ("end"); /* Defined by the linker. */
static char *heap_end;
char *prev_heap_end;
if (heap_end == NULL)
heap_end = &end;
prev_heap_end = heap_end;
if (heap_end + incr > stack_ptr)
{
/* Some of the libstdc++-v3 tests rely upon detecting
out of memory errors, so do not abort here. */
errno = ENOMEM;
return (caddr_t) - 1;
}
heap_end += incr;
return (caddr_t) prev_heap_end;
}
int
_swistat (int fd, struct stat *st)
{
struct fdent *pfd;
param_block_t param[1];
int res;
pfd = findslot (fd);
if (pfd == NULL)
{
errno = EBADF;
return -1;
}
param[0] = pfd->handle;
res = do_AngelSVC (AngelSVC_Reason_IsTTY, param);
if (res != 0 && res != 1)
return error (-1);
memset (st, 0, sizeof (*st));
if (res)
{
/* This is a tty. */
st->st_mode |= S_IFCHR;
}
else
{
/* This is a file, return the file length. */
st->st_mode |= S_IFREG;
res = checkerror (do_AngelSVC (AngelSVC_Reason_FLen, param));
if (res == -1)
return -1;
st->st_size = res;
st->st_blksize = 1024;
st->st_blocks = (res + 1023) / 1024;
}
/* Deduce permissions based on mode in which file opened. */
st->st_mode |= S_IRUSR | S_IRGRP | S_IROTH;
if (pfd->flags & _FWRITE)
st->st_mode |= S_IWUSR | S_IWGRP | S_IWOTH;
st->st_ino = pfd->ino;
st->st_nlink = 1;
return 0;
}
int __attribute__((weak))
_fstat (int fd, struct stat * st)
{
return _swistat (fd, st);
}
int __attribute__((weak))
_stat (const char *fname, struct stat *st)
{
int fd, res;
/* The best we can do is try to open the file readonly.
If it exists, then we can guess a few things about it. */
if ((fd = _open (fname, O_RDONLY)) == -1)
return -1;
res = _swistat (fd, st);
/* Not interested in the error. */
_close (fd);
return res;
}
int __attribute__((weak))
_link (void)
{
errno = ENOSYS;
return -1;
}
int
_unlink (const char *path)
{
int res;
param_block_t block[2];
block[0] = (param_block_t) path;
block[1] = strlen (path);
res = do_AngelSVC (AngelSVC_Reason_Remove, block);
if (res == -1)
return error (res);
return 0;
}
int
_gettimeofday (struct timeval *tp, void *tzvp)
{
struct timezone *tzp = tzvp;
if (tp)
{
/* Ask the host for the seconds since the Unix epoch. */
tp->tv_sec = do_AngelSVC (AngelSVC_Reason_Time, NULL);
tp->tv_usec = 0;
}
/* Return fixed data for the timezone. */
if (tzp)
{
tzp->tz_minuteswest = 0;
tzp->tz_dsttime = 0;
}
return 0;
}
/* Return a clock that ticks at 100Hz. */
clock_t
_clock (void)
{
clock_t timeval;
timeval = do_AngelSVC (AngelSVC_Reason_Clock, NULL);
return timeval;
}
/* Return a clock that ticks at 100Hz. */
clock_t
_times (struct tms * tp)
{
clock_t timeval = _clock ();
if (tp)
{
tp->tms_utime = timeval; /* user time */
tp->tms_stime = 0; /* system time */
tp->tms_cutime = 0; /* user time, children */
tp->tms_cstime = 0; /* system time, children */
}
return timeval;
};
int
_isatty (int fd)
{
struct fdent *pfd;
param_block_t param[1];
int res;
/* Return 1 if fd is an open file descriptor referring to a terminal;
otherwise 0 is returned, and errno is set to indicate the error. */
pfd = findslot (fd);
if (pfd == NULL)
{
errno = EBADF;
return 0;
}
param[0] = pfd->handle;
res = do_AngelSVC (AngelSVC_Reason_IsTTY, param);
if (res != 1)
return error (0);
return res;
}
int
_system (const char *s)
{
param_block_t block[2];
int e;
/* Hmmm. The ARM debug interface specification doesn't say whether
SYS_SYSTEM does the right thing with a null argument, or assign any
meaning to its return value. Try to do something reasonable.... */
if (!s)
return 1; /* maybe there is a shell available? we can hope. :-P */
block[0] = (param_block_t) s;
block[1] = strlen (s);
e = checkerror (do_AngelSVC (AngelSVC_Reason_System, block));
if ((e >= 0) && (e < 256))
{
/* We have to convert e, an exit status to the encoded status of
the command. To avoid hard coding the exit status, we simply
loop until we find the right position. */
int exit_code;
for (exit_code = e; e && WEXITSTATUS (e) != exit_code; e <<= 1)
continue;
}
return e;
}
int
_rename (const char *oldpath, const char *newpath)
{
param_block_t block[4];
block[0] = (param_block_t) oldpath;
block[1] = strlen (oldpath);
block[2] = (param_block_t) newpath;
block[3] = strlen (newpath);
return checkerror (do_AngelSVC (AngelSVC_Reason_Rename, block)) ? -1 : 0;
}
/* Returns the number of elapsed target ticks since the support code
started execution. Returns -1 and sets errno on error. */
long
__aarch64_angel_elapsed (void)
{
int result;
param_block_t block[2];
result = checkerror (do_AngelSVC (AngelSVC_Reason_Elapsed, block));
if (result == -1)
return result;
return block[0];
}

6
libgloss/configure vendored
View File

@@ -665,6 +665,7 @@ target_alias
CCAS
CCASFLAGS'
ac_subdirs_all='doc
aarch64
epiphany
i386
m32r
@@ -2391,6 +2392,11 @@ config_testsuite=true
config_libnosys=true
case "${target}" in
aarch64*-*-*)
subdirs="$subdirs aarch64"
config_testsuite=true
;;
epiphany-*-*)
subdirs="$subdirs epiphany"

4
libgloss/configure.in
View File

@@ -34,6 +34,10 @@ dnl indicates whether to run configure within the libnosys subdirectory
config_libnosys=true
case "${target}" in
aarch64*-*-*)
AC_CONFIG_SUBDIRS(aarch64)
config_testsuite=true
;;
epiphany-*-*)
AC_CONFIG_SUBDIRS(epiphany)
config_testsuite=true