Generate platform code from configuration
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7
src/kernel/platform.conf
Normal file
7
src/kernel/platform.conf
Normal file
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@ -0,0 +1,7 @@
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#i386
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ioport bus
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vga bus at ioport bus
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cmos bus at ioport bus
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i8259a pic at ioport bus
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cmos clock at cmos bus
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182
src/kernel/platform.sh
Executable file
182
src/kernel/platform.sh
Executable file
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@ -0,0 +1,182 @@
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#!/bin/sh
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#$Id$
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#Copyright (c) 2018 Pierre Pronchery <khorben@defora.org>
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#This file is part of DeforaOS uKernel
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#
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#Redistribution and use in source and binary forms, with or without
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#modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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#FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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#DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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#SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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#CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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#OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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#OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#variables
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PLATFORMCONF="platform.conf"
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PROGNAME="platform.sh"
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TARGET="platform.c"
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#functions
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#error
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_error()
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{
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echo "$PROGNAME: $@" 1>&2
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return 2
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}
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#platform
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_platform()
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{
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ret=0
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line=0
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buses=
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devices=
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#output the header
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echo "/* \$Id\$ */
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/* Copyright (c) 2018 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS uKernel */
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"
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#output the includes
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while read name type at busname bus args; do
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line=$((line + 1))
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#convert comments and ignore empty lines
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case "$name" in
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"#"*)
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echo -n "/* "
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[ -n "${name#?}" ] && echo -n "${name#?}"
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[ -n "$type" ] && echo -n " $type"
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[ -n "$at" ] && echo -n " $at"
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[ -n "$busname" ] && echo -n " $busname"
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[ -n "$bus" ] && echo -n " $bus"
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[ -n "$args" ] && echo -n " $args"
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echo " */"
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continue
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;;
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"")
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continue
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;;
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esac
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#check for syntax errors
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if [ "$at" != "at" -o "$bus" != "bus" ] &&
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[ -n "$at" -o -n "$busname" -o -n "$bus" ]; then
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_error "Syntax error at line $line"
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ret=$?
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fi
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case "$type" in
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bus)
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buses="$buses
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$name $type $busname $args"
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;;
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*)
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devices="$devices
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$name $type $busname $args"
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;;
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esac
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done
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#output the includes
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echo "#include <stddef.h>"
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echo "$devices" | while read name type busname args; do
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[ -n "$name" ] || continue
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echo "#include \"drivers/${type}.h\""
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done
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#begin the function
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echo "
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/* public */
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/* functions */
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/* platform_init */
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void platform_init(void)
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{"
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#list the buses
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echo "$buses" | while read name type busname args; do
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[ -n "$name" ] || continue
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echo " ukBus * ${name}bus;"
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done
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#initialize the buses
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echo
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echo "$buses" | while read name type busname args; do
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[ -n "$name" ] || continue
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if [ -z "$busname" ]; then
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echo " ${name}${type} = ${type}_init(NULL, \"${name}\");"
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else
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echo " ${name}${type} = ${type}_init(${busname}bus, \"${name}\");"
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fi
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done
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#initialize the devices
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echo "$devices" | while read name type busname args; do
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[ -n "$name" ] || continue
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if [ -z "$busname" ]; then
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echo " ${type}_init(NULL, \"${name}\");"
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else
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echo " ${type}_init(${busname}bus, \"${name}\");"
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fi
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done
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#end the function
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echo "}"
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return $ret
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}
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#usage
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_usage()
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{
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echo "Usage: $PROGNAME target" 1>&2
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return 1
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}
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#main
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while getopts "cO:P:" name; do
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case "$name" in
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c)
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clean=1
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;;
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O)
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export "${OPTARG%%=*}"="${OPTARG#*=}"
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;;
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P)
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#XXX ignored for compatibility
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;;
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?)
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_usage
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exit $?
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;;
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esac
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done
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shift $((OPTIND - 1))
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if [ $# -ne 1 ]; then
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_usage
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exit $?
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fi
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#XXX breaks OBJDIR
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_platform < "$PLATFORMCONF" > "$TARGET"
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@ -1,11 +1,11 @@
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targets=crtbegin.o,crtend.o,crti.o,crtn.o,uKernel.bin
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targets=crtbegin.o,crtend.o,crti.o,crtn.o,platform.c,uKernel.bin
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cppflags_force=-nostdinc -isystem ../../include -I..
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as=$(CC)
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asflags_force=$(CFLAGSF) $(CFLAGS) -c
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cflags_force=`../../tools/platform.sh -V UKERNEL_CFLAGS -C "$$ARCH"`
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cflags=-W -Wall -g -O2
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ldflags_force=`../../tools/platform.sh -V UKERNEL_LDFLAGS -C "$$ARCH"`
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dist=Makefile
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dist=Makefile,platform.conf,platform.sh
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#targets
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[crtbegin.o]
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@ -24,9 +24,14 @@ sources=crti.S
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type=object
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sources=crtn.S
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[platform.c]
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type=script
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script=./platform.sh
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depends=platform.conf,platform.sh
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[uKernel.bin]
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type=binary
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sources=arch.S,gdt.c,idt.c,main.c,multiboot.c,start.S
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sources=arch.S,gdt.c,idt.c,main.c,multiboot.c,platform.c,start.S
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ldflags=$(OBJDIR)crti.o $(OBJDIR)crtbegin.o $(OBJDIR)../drivers/boot/multiboot.o $(OBJDIR)../drivers/bus.o $(OBJDIR)../drivers/bus/cmos.o $(OBJDIR)../drivers/bus/ioport.o $(OBJDIR)../drivers/bus/vga.o $(OBJDIR)../drivers/clock.o $(OBJDIR)../drivers/clock/cmos.o $(OBJDIR)../drivers/console.o $(OBJDIR)../drivers/console/uart.o $(OBJDIR)../drivers/display.o $(OBJDIR)../drivers/display/vesa.o $(OBJDIR)../drivers/display/vga.o $(OBJDIR)../drivers/pic.o $(OBJDIR)../drivers/pic/i8259a.o $(OBJDIR)../lib/libuKernel.a $(OBJDIR)crtend.o $(OBJDIR)crtn.o `$(CC) -print-libgcc-file-name`
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depends=$(OBJDIR)crtbegin.o,$(OBJDIR)crtend.o,$(OBJDIR)crti.o,$(OBJDIR)crtn.o,$(OBJDIR)../drivers/boot/multiboot.o,$(OBJDIR)../drivers/bus.o,$(OBJDIR)../drivers/bus/cmos.o,$(OBJDIR)../drivers/bus/ioport.o,$(OBJDIR)../drivers/bus/vga.o,$(OBJDIR)../drivers/clock.o,$(OBJDIR)../drivers/clock/cmos.o,$(OBJDIR)../drivers/console.o,$(OBJDIR)../drivers/console/uart.o,$(OBJDIR)../drivers/display.o,$(OBJDIR)../drivers/display/vesa.o,$(OBJDIR)../drivers/display/vga.o,$(OBJDIR)../drivers/pic.o,$(OBJDIR)../drivers/pic/i8259a.o,$(OBJDIR)../lib/libuKernel.a,../arch/amd64/uKernel.ld,../arch/i386/uKernel.ld
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