xkdb_builder

#!/bin/bash
##### SET ARCHITECTURE [x86 or ARM] #####
SYSARCH="x86"                           #
#########################################
##### SET SEMESTER [semesterYear] ######
SEM="spring2021"                       #
#########################################

if [ $# -eq 1 ] && [ "$1" == "--help" ]; then
	echo "To run the build tool: ./xkdb_builder [xinu_dir] [xkdb_dir]"
	echo "To update XKDB: ./xkdb_builder [xkdb_dir] --pull"
	exit 1
fi

if [ $# -ne 2 ]; then
	echo "usage: ./xkdb_builder [xinu_dir] [xkdb_dir]"
	echo "To update xkdb, run ./xkdb_builder [xkdb_dir] --pull"
	exit 1
fi

if [ "$SYSARCH" != "x86" ] && [ "$SYSARCH" != "ARM" ]; then
	echo "Incorrect Architecture! Must be either x86 or ARM!"
	exit 1
fi

if [ "$2" == "--pull" ]; then
	echo "Updating XKDB in directory $1!"
	cd $1
	git pull
	echo "XKDB has been updated!"
	exit 1
fi

XINU_DIR=$1/xinu-$SEM
XKDB_DIR=$2

if [ "$SYSARCH" == "x86" ]; then
	touch $XINU_DIR/system/i386-stub.c
	cp $XKDB_DIR/stub/i386-stub.c $XINU_DIR/system/i386-stub.c
elif [ "$SYSARCH" == "ARM" ]; then
	touch $XINU_DIR/system/arm-stub.c
	cp $XKDB_DIR/stub/arm-stub.c $XINU_DIR/system/arm-stub.c
fi

cp $XINU_DIR/system/initialize.c $XINU_DIR/system/.initialize.c.bkp

sed -i '/local\tprocess startup(void);\t\/\* Process to finish startup tasks\t\*/a \
\
// XKDB extern declarations \
extern void set_debug_traps(); \
extern void breakpoint();' $XINU_DIR/system/initialize.c

cp $XINU_DIR/system/initialize.c $XINU_DIR/system/.initialize.c.bkp2

sed -i '/readylist = newqueue();/a \
\
	set_debug_traps();\
	breakpoint();' $XINU_DIR/system/initialize.c

cp $XINU_DIR/compile/Makefile $XINU_DIR/compile/.Makefile.bkp

sed -i '/CFLAGS  = -march=i586 -m32 -fno-builtin -fno-stack-protector -nostdlib -c -Wall -O0 ${DEFS} ${INCLUDE}/c\CFLAGS  = -g -march=i586 -m32 -fno-builtin -fno-stack-protector -nostdlib -c -Wall -O0 ${DEFS} ${INCLUDE}' $XINU_DIR/compile/Makefile

cd $XINU_DIR/compile
make clean
make rebuild
make

echo -e "XKDB has been setup fully! When you want to debug, open a new terminal window, get on to the same xinu instance ($(uname -a)), and then run gdb -x ~/.xkdb."