Initial PRU port for libgloss and newlib

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
This commit is contained in:
Dimitar Dimitrov 2018-03-11 22:23:26 +02:00 committed by Ken Brown
parent 92dbd4e8d1
commit 4b3b625d1b
32 changed files with 11658 additions and 3 deletions

5
libgloss/configure vendored
View File

@ -710,6 +710,7 @@ spu
tic6x
iq2000
or1k
pru
nios2
libnosys'
@ -2586,6 +2587,10 @@ case "${target}" in
or1k-*-* | or1knd-*-* )
subdirs="$subdirs or1k"
;;
pru-*-*)
subdirs="$subdirs pru"
;;
nios2-*-*)
subdirs="$subdirs nios2"

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@ -176,6 +176,9 @@ case "${target}" in
or1k-*-* | or1knd-*-* )
AC_CONFIG_SUBDIRS([or1k])
;;
pru-*-*)
AC_CONFIG_SUBDIRS([pru])
;;
nios2-*-*)
AC_CONFIG_SUBDIRS([nios2])
;;

155
libgloss/pru/Makefile.in Normal file
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@ -0,0 +1,155 @@
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
VPATH = @srcdir@ @srcdir@/..
srcdir = @srcdir@
objdir = .
srcroot = $(srcdir)/../..
objroot = $(objdir)/../..
top_srcdir = @top_srcdir@
prefix = @prefix@
exec_prefix = @exec_prefix@
host_alias = @host_alias@
target_alias = @target_alias@
bindir = @bindir@
libdir = @libdir@
includedir = @includedir@
tooldir = $(exec_prefix)/$(target_alias)
# Multilib support variables.
# TOP is used instead of MULTI{BUILD,SRC}TOP.
MULTIDIRS =
MULTISUBDIR =
SHELL = /bin/sh
mkinstalldirs = $(SHELL) $(top_srcdir)/../../mkinstalldirs
CC = @CC@
AS = @AS@
AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
OBJDUMP = `t='$(program_transform_name)'; echo objdump | sed -e $$t`
OBJCOPY = `t='$(program_transform_name)'; echo objcopy | sed -e $$t`
# linker scripts
SCRIPTS = `ls ${srcdir}/ldscripts/*.x`
# object files needed
OBJS = \
do_global_dtors.o gettimeofday.o \
isatty.o putnum.o raise.o \
inbyte.o outbyte.o sbrk.o stat.o syscalls.o \
do_global_dtors.o
# Object files specific to particular targets.
EVALOBJS = ${OBJS}
CRTOBJS = crt0.o crt0-minrt.o
OUTPUTS = libgloss.a $(CRTOBJS)
INCLUDES = -I$(srcdir)/..
# Note that when building the library, ${MULTILIB} is not the way multilib
# options are passed; they're passed in $(CFLAGS).
CFLAGS_FOR_TARGET = ${MULTILIB} ${INCLUDES}
LDFLAGS_FOR_TARGET = ${MULTILIB}
.c.o:
$(CC) $(CFLAGS_FOR_TARGET) -Os $(INCLUDES) -c $(CFLAGS) $<
.C.o:
$(CC) $(CFLAGS_FOR_TARGET) -Os $(INCLUDES) -c $(CFLAGS) $<
.s.o:
$(AS) $(ASFLAGS_FOR_TARGET) $(INCLUDES) $(ASFLAGS) -o $*.o $<
#
# GCC knows to run the preprocessor on .S files before it assembles them.
#
.S.o:
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) $(CFLAGS) -c $<
all: ${OUTPUTS} copy_scripts_to_objdir
copy_scripts_to_objdir: $(srcdir)/ldscripts/gen-ld-scripts.sh
cp $(SCRIPTS) $(objdir)
#
# here's where we build the library for each target
#
libgloss.a: $(EVALOBJS)
${AR} ${ARFLAGS} $@ $(EVALOBJS)
${RANLIB} $@
# C Runtime Library startup code.
crt0.o: $(srcdir)/crt0.S
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) $(CFLAGS) $< -c -o $@
crt0-minrt.o: $(srcdir)/crt0.S
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) $(CFLAGS) -DMINRT $< -c -o $@
doc:
clean mostlyclean:
rm -f $(OUTPUTS) *.i *~ *.o *-test *.srec *.dis *.map *.x
distclean maintainer-clean realclean: clean
rm -f Makefile config.status $(OUTPUTS)
.PHONY: install info install-info clean-info
install: $(OUTPUTS) $(srcdir)/ldscripts/gen-ld-scripts.sh
for outputs in ${OUTPUTS}; do\
${INSTALL_DATA} $${outputs} ${DESTDIR}${tooldir}/lib${MULTISUBDIR}/$${outputs}; \
done
for s in $(SCRIPTS); do \
b=`basename $$s`; \
${INSTALL_DATA} $$s ${DESTDIR}${tooldir}/lib${MULTISUBDIR}/$$b ;\
done
${mkinstalldirs} ${DESTDIR}${tooldir}/lib${MULTISUBDIR}/device-specs; \
for s in ${srcdir}/device-specs/*; do \
b=`basename $$s`; \
$(INSTALL_DATA) $$s $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/device-specs/$$b ;\
done
info:
install-info:
clean-info:
Makefile: $(srcdir)/Makefile.in config.status @host_makefile_frag_path@
$(SHELL) config.status
config.status: $(srcdir)/configure
$(SHELL) config.status --recheck

409
libgloss/pru/aclocal.m4 vendored Normal file
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@ -0,0 +1,409 @@
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# Copyright (c) 2008, 2009, 2011, 2013 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use, modify,
# copy, or redistribute it subject to the terms and conditions of the BSD
# License. This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY expressed or implied, including the implied warranties
# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy of this license
# is available at http://www.opensource.org/licenses. Any Red Hat trademarks that
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if test "$srcdir" = "." ; then
if test "${with_target_subdir}" != "." ; then
libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
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target=${target}
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ac_configure_args="${ac_configure_args} --enable-multilib"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgloss_topdir=${libgloss_topdir}
)
AC_OUTPUT

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/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* crt0.S -- PRU startup code
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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"
.extern main
.extern exit
.text
.section .init0, "x"
.global _start
_start:
/* Initialize stack pointer. */
ldi32 sp, _stack_top
/* DATA and BSS are handled by the loader, so nothing to do here. */
#if !defined(MINRT)
.extern _do_global_dtors
/* Ensure destructors get called. Call is per GNU ABI (i.e. 32-bit
function pointers). But it is also compatible with the TI ABI
since GCC supports only little endian PRU.
WARNING: Keep this compatible with both ABIs! */
ldi r14, %pmem(_do_global_dtors)
call atexit
/* Call constructors. Use non-call-clobbered registers. */
ldi r5, __init_array_start
ldi r6, __init_array_end
ctors_loop:
qbeq ctors_done, r5, r6
/* ABI dictates 16-bit IMEM pointers. */
lbbo r7, r5, 0, 2
call r7.w0
add r5, r5, 2
jmp ctors_loop
ctors_done:
#endif
/* Just in case main() tries to access argc, argv[] and envp. */
zero r14, 3 * 4
#if !defined(MINRT)
.weak __c_args__
ldi32 r5, __c_args__
qbeq __skip_c_args, r5, 0
lbbo r14, r5, 0, 4 /* argc */
add r15, r5, 4 /* argv */
__skip_c_args:
#endif
/* Call main */
call main
#if !defined(MINRT)
/* Call exit */
call exit
#endif
/* We should never reach here. */
_crt_exit:
halt
jmp _crt_exit
/* PRU obviously has no shared libraries, but dso_handle
helps to achieve better GCC test coverage. Besides,
it should be free with minrt. */
.section .data
.global __dso_handle
.weak __dso_handle
__dso_handle:
.long 0

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@ -0,0 +1,5 @@
*cpp_device:
-D__SIM__
*link_device:
%{!r:-Tpruelf-sim.x}

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@ -0,0 +1,53 @@
/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* do_global_dtors - invoke global destructors
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 <stdint.h>
#include <_ansi.h>
#include "syscall.h"
extern void *__fini_array_start;
extern void *__fini_array_end;
/*
* _do_global_dtors
*/
void
_do_global_dtors (void)
{
/* ABI dictates pointers in init/fini arrays are 16-bit. */
const uint16_t *end = (uint16_t *)&__fini_array_end;
const uint16_t *begin = (uint16_t *)&__fini_array_start;
const uint16_t *p;
void (**dtor) (void);
/* call destructors in reverse order */
for (p = end; p > begin; ) {
p--;
dtor = (void *)p;
(*dtor) ();
}
}

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/* gettimeofday.c -- get the current time of day
*
* Copyright (c) 1995, 1999 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <errno.h>
#include "glue.h"
#undef errno
extern int errno;
struct timeval;
/*
* gettimeofday -- no clock
* struct timeval * tp, void * tzvp
*/
int
_gettimeofday (struct timeval * tp, void * tzvp)
{
errno = ENOSYS;
return -1;
}

51
libgloss/pru/inbyte.c Normal file
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/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* inbyte.c -- inbyte function for remoteproc
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 <errno.h>
#include <_ansi.h>
#include <stdio.h>
#include <unistd.h>
#include "glue.h"
extern ssize_t _read(int fd, void *b, size_t count);
int
inbyte (void)
{
ssize_t n;
char c;
/* PRU has no interrupts, so it is inherently thread-safe. */
n = _read(STDIN_FILENO, &c, 1);
if (n < 0)
return n;
else if (n == 0)
return -ENODATA;
else
return 1;
}

26
libgloss/pru/isatty.c Normal file
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@ -0,0 +1,26 @@
/* isatty.c -- chek the terminal device.
*
* Copyright (c) 1995 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#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
_isatty (int fd)
{
return (1);
}

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@ -0,0 +1,80 @@
#!/bin/bash
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
# Generate additional MCU-specific linker scripts by using the
# default PRU-LD linker script.
#
# We do it automatically so that:
# 1. We only change the default linker script in binutils.
# 2. All the default script complexity stays in binutils.
# 3. Here in libgloss we only bump the memory sizes to
# allow large test programs to be executed.
dump_modified()
{
IMEM_SIZE=$1
DMEM_SIZE=$2
HEAP_SIZE=$3
STACK_SIZE=$4
echo "/* WARNING: automatically generated from the default pru-ld script! */"
echo -e "\n\n"
pru-ld --verbose | awk "
BEGIN { LDV_MARKER = 0; }
{
if (\$0 == \"==================================================\" )
{
LDV_MARKER++;
}
else if (LDV_MARKER != 1)
{
}
else if (\$0 ~ /^ imem.*ORIGIN =.*LENGTH =/)
{
print \" imem (x) : ORIGIN = 0x20000000, LENGTH = $IMEM_SIZE\"
}
else if (\$0 ~ /^ dmem.*ORIGIN =.*LENGTH =/)
{
print \" dmem (rw!x) : ORIGIN = 0x0, LENGTH = $DMEM_SIZE\"
}
else if (\$0 ~ /^__HEAP_SIZE = DEFINED/)
{
print \"__HEAP_SIZE = DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : $HEAP_SIZE ;\";
}
else if (\$0 ~ /^__STACK_SIZE = DEFINED/)
{
print \"__STACK_SIZE = DEFINED(__STACK_SIZE) ? __STACK_SIZE : $STACK_SIZE ;\";
}
else
{
print \$0;
}
}"
}
# IMEM DMEM HEAP_SIZE STACK_SIZE
dump_modified 256K 65536K "32 * 1024 * 1024" "1024 * 1024" | tee pruelf-sim.x

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@ -0,0 +1,200 @@
/* WARNING: automatically generated from the default pru-ld script! */
/* Default linker script, for normal executables */
OUTPUT_FORMAT("elf32-pru","elf32-pru","elf32-pru")
OUTPUT_ARCH(pru)
MEMORY
{
imem (x) : ORIGIN = 0x20000000, LENGTH = 256K
dmem (rw!x) : ORIGIN = 0x0, LENGTH = 65536K
}
__HEAP_SIZE = DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : 32 * 1024 * 1024 ;
__STACK_SIZE = DEFINED(__STACK_SIZE) ? __STACK_SIZE : 1024 * 1024 ;
PROVIDE (_stack_top = ORIGIN(dmem) + LENGTH(dmem));
ENTRY (_start)
SECTIONS
{
/* Read-only sections, merged into text segment: */
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.rel.init : { *(.rel.init) }
.rela.init : { *(.rela.init) }
.rel.text :
{
*(.rel.text)
*(.rel.text.*)
*(.rel.text:*)
*(.rel.gnu.linkonce.t*)
}
.rela.text :
{
*(.rela.text)
*(.rela.text.*)
*(.rela.text:*)
*(.rela.gnu.linkonce.t*)
}
.rel.fini : { *(.rel.fini) }
.rela.fini : { *(.rela.fini) }
.rel.rodata :
{
*(.rel.rodata)
*(.rel.rodata.*)
*(.rel.rodata:*)
*(.rel.gnu.linkonce.r*)
}
.rela.rodata :
{
*(.rela.rodata)
*(.rela.rodata.*)
*(.rela.rodata:*)
*(.rela.gnu.linkonce.r*)
}
.rel.data :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.data:*)
*(.rel.gnu.linkonce.d*)
}
.rela.data :
{
*(.rela.data)
*(.rela.data.*)
*(.rela.data:*)
*(.rela.gnu.linkonce.d*)
}
.rel.init_array : { *(.rel.init_array) }
.rela.init_array : { *(.rela.init_array) }
.rel.fini_array : { *(.rel.fini_array) }
.rela.fini_array : { *(.rela.fini_array) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.bss : { *(.rel.bss) }
.rela.bss : { *(.rela.bss) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
/* Internal text space. */
.text :
{
_text_start = . ;
. = ALIGN(4);
*(.init0) /* Start here after reset. */
KEEP (*(.init0))
. = ALIGN(4);
*(.text)
. = ALIGN(4);
*(.text.*)
. = ALIGN(4);
*(.text:*)
. = ALIGN(4);
*(.gnu.linkonce.t*)
. = ALIGN(4);
_text_end = . ;
} > imem
.data :
{
/* Optional variable that user is prepared to have NULL address. */
*(.data.atzero*)
/* CRT is prepared for constructor/destructor table to have
a "valid" NULL address. */
__init_array_start = . ;
KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*)))
KEEP (*(.init_array))
__init_array_end = . ;
__fini_array_start = . ;
KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*)))
KEEP (*(.fini_array))
__fini_array_end = . ;
/* DATA memory starts at address 0. So to avoid placing a valid static
variable at the invalid NULL address, we introduce the .data.atzero
section. If CRT can make some use of it - great. Otherwise skip a
word. In all cases .data/.bss sections must start at non-zero. */
. += (. == 0 ? 4 : 0);
PROVIDE (_data_start = .) ;
*(.data)
*(.data*)
*(.data:*)
*(.rodata) /* We need to include .rodata here if gcc is used. */
*(.rodata.*) /* with -fdata-sections. */
*(.rodata:*)
*(.gnu.linkonce.d*)
*(.gnu.linkonce.r*)
. = ALIGN(4);
PROVIDE (_data_end = .) ;
} > dmem
.resource_table :
{
KEEP (*(.resource_table))
} > dmem
.bss :
{
PROVIDE (_bss_start = .) ;
*(.bss)
*(.bss.*)
*(.bss:*)
*(.gnu.linkonce.b*)
*(COMMON)
PROVIDE (_bss_end = .) ;
} > dmem
/* Global data not cleared after reset. */
.noinit :
{
PROVIDE (_noinit_start = .) ;
*(.noinit)
PROVIDE (_noinit_end = .) ;
PROVIDE (_heap_start = .) ;
. += __HEAP_SIZE ;
/* Stack is not here really. It will be put at the end of DMEM.
But we take into account its size here, in order to allow
for MEMORY overflow checking during link time. */
. += __STACK_SIZE ;
} > dmem
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.note.gnu.build-id : { *(.note.gnu.build-id) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
/* DWARF 3 */
.debug_pubtypes 0 : { *(.debug_pubtypes) }
.debug_ranges 0 : { *(.debug_ranges) }
/* DWARF Extension. */
.debug_macro 0 : { *(.debug_macro) }
.debug_addr 0 : { *(.debug_addr) }
}

37
libgloss/pru/outbyte.c Normal file
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/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* outbyte.c -- outbyte function for simulator
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 <unistd.h>
#include <_ansi.h>
extern ssize_t _write(int fd, const void *b, size_t count);
void
outbyte (char ch)
{
_write(STDOUT_FILENO, &ch, 1);
}

25
libgloss/pru/print.c Normal file
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/* print.c -- print a string on the output device.
*
* Copyright (c) 1995, 1999 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <unistd.h>
#include "glue.h"
/*
* print -- do a raw print of a string
*/
void
_print (char *ptr)
{
_write(STDOUT_FILENO, ptr, strlen(ptr));
}

42
libgloss/pru/putnum.c Normal file
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/* putnum.c -- put a hex number on the output device.
*
* Copyright (c) 1995, 1999 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "glue.h"
extern void print (char *ptr);
/*
* putnum -- print a 32 bit number in hex
*/
void
_putnum (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);
}

24
libgloss/pru/raise.c Normal file
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@ -0,0 +1,24 @@
/* raise.c -- raise a signal for current process.
*
* Copyright (c) 1999 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "glue.h"
extern int _kill (int, int);
extern int _getpid(void);
int
_raise (int sig)
{
return _kill (_getpid (), sig);
}

46
libgloss/pru/sbrk.c Normal file
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/* sbrk.c -- allocate memory dynamically.
*
* Copyright (c) 1995,1996,1999 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include "glue.h"
extern char _heap_start[];
extern void exit (int) __attribute ((__noreturn__));
extern int _write (int, char *, int);
caddr_t
_sbrk (size_t incr)
{
static char *heap_end;
char *prev_heap_end;
char *sp = (char *)&sp;
if (heap_end == 0)
{
heap_end = _heap_start;
}
prev_heap_end = heap_end;
if (heap_end > sp)
{
_write (1, "Heap and stack collision\n", 25);
#if 0 /* Calling abort brings in the signal handling code. */
abort ();
#else
exit (1);
#endif
}
heap_end += incr;
return (caddr_t) prev_heap_end;
}

31
libgloss/pru/stat.c Normal file
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/* stat.c -- Get the status of a file.
*
* Copyright (c) 1995, 1999 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <sys/stat.h>
#include <errno.h>
#include "glue.h"
#undef errno
extern int errno;
/*
* stat -- Since we have no file system, we just return an error.
*/
int
_stat (const char *path, struct stat *buf)
{
errno = EIO;
return (-1);
}

78
libgloss/pru/syscalls.S Normal file
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/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* syscalls.S -- PRU system calls code
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 "syscall.h"
.extern _impure_ptr
/* Handle return from syscall. */
.global __SC_ret
.type __SC_ret,@function
.func
__SC_ret:
/* Check for negative return code */
qbbc __SC_ret_skip_errno_set, r14, 31
/* Invert return code and store to errno (first int in _impure_ptr). */
rsb r14, r14, 0
ldi32 r1, _impure_ptr
sbbo r14, r1, 0, 4
/* Return -1 (for both int32_t or int64_t). */
fill r14, 8
__SC_ret_skip_errno_set:
ret
.endfunc
.macro SC fname, id
.global \fname
.type \fname,@function
.func
\fname:
ldi r1, \id
halt
jmp __SC_ret
.endfunc
.endm
.text
/* Syscalls are used only by simulator. Real HW
users use other methods for communicating with
the host - remoteproc, rpmsg, shared memory. */
SC _exit, SYS_exit
SC _open, SYS_open
SC _close, SYS_close
SC _read, SYS_read
SC _write, SYS_write
SC _lseek, SYS_lseek
SC _unlink, SYS_unlink
SC _getpid, SYS_getpid
SC _kill, SYS_kill
SC _fstat, SYS_fstat

View File

@ -87,7 +87,7 @@ case "${target_optspace}:${host}" in
yes:*)
newlib_cflags="${newlib_cflags} -Os"
;;
:m32r-* | :d10v-* | :d30v-* | :avr-* | :m32c-* | :msp430*-* | :nds32* | :rl78-* )
:m32r-* | :d10v-* | :d30v-* | :avr-* | :m32c-* | :msp430*-* | :nds32* | :pru-* | :rl78-* )
newlib_cflags="${newlib_cflags} -Os"
;;
no:* | :*)
@ -291,6 +291,14 @@ case "${host_cpu}" in
powerpc*)
machine_dir=powerpc
;;
pru*)
newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED"
newlib_cflags="${newlib_cflags} -DNO_EXEC"
newlib_cflags="${newlib_cflags} -DSMALL_MEMORY"
default_newlib_nano_malloc="yes"
default_newlib_atexit_dynamic_alloc="no"
machine_dir=pru
;;
riscv*)
libm_machine_dir=riscv
machine_dir=riscv
@ -857,6 +865,10 @@ newlib_cflags="${newlib_cflags} -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DEXIT_PROVID
newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DHAVE_FCNTL -D_NO_POSIX_SPAWN"
syscall_dir=syscalls
;;
pru*)
syscall_dir=syscalls
newlib_cflags="${newlib_cflags} -DSMALL_MEMORY -D_REENT_SMALL"
;;
riscv*-*-*)
syscall_dir=syscalls
;;

View File

@ -409,6 +409,10 @@
#define __SMALL_BITFIELDS /* 16 Bit INT */
#endif
#ifdef __PRU__
#define __IEEE_LITTLE_ENDIAN
#endif
#ifdef __RL78__
#define __IEEE_LITTLE_ENDIAN
#define __SMALL_BITFIELDS /* 16 Bit INT */

View File

@ -352,6 +352,11 @@ _BEGIN_STD_C
#define _JBTYPE unsigned long
#endif
#ifdef __PRU__
#define _JBLEN 48
#define _JBTYPE unsigned int
#endif
#ifdef __RX__
#define _JBLEN 0x44
#endif

View File

@ -827,6 +827,7 @@ nios2
nvptx
or1k
powerpc
pru
rl78
rx
sh
@ -11503,7 +11504,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11506 "configure"
#line 11507 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -11609,7 +11610,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11612 "configure"
#line 11613 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -11935,6 +11936,8 @@ subdirs="$subdirs a29k"
or1k) subdirs="$subdirs or1k"
;;
powerpc) subdirs="$subdirs powerpc"
;;
pru) subdirs="$subdirs pru"
;;
rl78) subdirs="$subdirs rl78"
;;

View File

@ -65,6 +65,7 @@ if test -n "${machine_dir}"; then
nvptx) AC_CONFIG_SUBDIRS(nvptx) ;;
or1k) AC_CONFIG_SUBDIRS(or1k) ;;
powerpc) AC_CONFIG_SUBDIRS(powerpc) ;;
pru) AC_CONFIG_SUBDIRS(pru) ;;
rl78) AC_CONFIG_SUBDIRS(rl78) ;;
rx) AC_CONFIG_SUBDIRS(rx) ;;
sh) AC_CONFIG_SUBDIRS(sh) ;;

View File

@ -0,0 +1,16 @@
## Process this file with automake to generate Makefile.in
AUTOMAKE_OPTIONS = cygnus
INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
AM_CCASFLAGS = $(INCLUDES)
noinst_LIBRARIES = lib.a
lib_a_SOURCES = setjmp.s
lib_a_CCASFLAGS=$(AM_CCASFLAGS)
lib_a_CFLAGS=$(AM_CFLAGS)
ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host

View File

@ -0,0 +1,439 @@
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# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
# Foundation, Inc.
# This Makefile.in 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.
# This program is distributed in the hope that it will be useful,
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1012
newlib/libc/machine/pru/aclocal.m4 vendored Normal file

File diff suppressed because it is too large Load Diff

4766
newlib/libc/machine/pru/configure vendored Executable file

File diff suppressed because it is too large Load Diff

View File

@ -0,0 +1,14 @@
dnl This is the newlib/libc/machine/pru configure.in file.
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT([newlib],[NEWLIB_VERSION])
AC_CONFIG_SRCDIR([setjmp.s])
dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
AC_CONFIG_AUX_DIR(../../../..)
NEWLIB_CONFIGURE(../../..)
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

View File

@ -0,0 +1,45 @@
/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
.section .text
.align 3
.globl setjmp
.type setjmp,@function
.globl longjmp
.type longjmp,@function
setjmp:
sbbo r2, r14, 0, 4*12 /* SP, RA, FP, r5-r13 */
ldi r14, 0
ret
longjmp:
lbbo r2, r14, 0, 4*12 /* SP, RA, FP, r5-r13 */
mov r14, r15 /* copy second arg to return location */
qbne 1f, r14, 0 /* per stdC, we cannot return 0 */
ldi r14, 1
1:
ret