[mirror_qemu.git] / scripts / gensyscalls.sh

#!/bin/sh
#
# Update syscall_nr.h files from linux headers asm-generic/unistd.h
#
# This code is licensed under the GPL version 2 or later.  See
# the COPYING file in the top-level directory.
#

linux="$1"
output="$2"

TMP=$(mktemp -d)

if [ "$linux" = "" ] ; then
    echo "Needs path to linux source tree" 1>&2
    exit 1
fi

if [ "$output" = "" ] ; then
    output="$PWD"
fi

upper()
{
    echo "$1" | tr "[:lower:]" "[:upper:]" | tr "[:punct:]" "_"
}

qemu_arch()
{
    case "$1" in
    arm64)
        echo "aarch64"
        ;;
    *)
        echo "$1"
        ;;
    esac
}

read_includes()
{
    arch=$1
    bits=$2

     cpp -P -nostdinc -fdirectives-only \
        -D_UAPI_ASM_$(upper ${arch})_BITSPERLONG_H \
        -D__ASM_$(upper ${arch})_BITSPERLONG_H \
        -D__BITS_PER_LONG=${bits} \
        -I${linux}/arch/${arch}/include/uapi/ \
        -I${linux}/include/uapi \
        -I${TMP} \
        "${linux}/arch/${arch}/include/uapi/asm/unistd.h"
}

filter_defines()
{
    grep -e "#define __NR_" -e "#define __NR3264"
}

rename_defines()
{
    sed "s/ __NR_/ TARGET_NR_/g;s/(__NR_/(TARGET_NR_/g"
}

evaluate_values()
{
    sed "s/#define TARGET_NR_/QEMU TARGET_NR_/" | \
    cpp -P -nostdinc | \
    sed "s/^QEMU /#define /"
}

generate_syscall_nr()
{
    arch=$1
    bits=$2
    file="$3"
    guard="$(upper LINUX_USER_$(qemu_arch $arch)_$(basename "$file"))"

    (echo "/*"
    echo " * This file contains the system call numbers."
    echo " * Do not modify."
    echo " * This file is generated by scripts/gensyscalls.sh"
    echo " */"
    echo "#ifndef ${guard}"
    echo "#define ${guard}"
    echo
    read_includes $arch $bits | filter_defines | rename_defines | \
                                evaluate_values | sort -n -k 3
    echo
    echo "#endif /* ${guard} */") > "$file"
}

mkdir "$TMP/asm"
> "$TMP/asm/bitsperlong.h"

generate_syscall_nr arm64 64 "$output/linux-user/aarch64/syscall_nr.h"
generate_syscall_nr openrisc 32 "$output/linux-user/openrisc/syscall_nr.h"

generate_syscall_nr riscv 32 "$output/linux-user/riscv/syscall32_nr.h"
generate_syscall_nr riscv 64 "$output/linux-user/riscv/syscall64_nr.h"
generate_syscall_nr hexagon 32 "$output/linux-user/hexagon/syscall_nr.h"
generate_syscall_nr loongarch 64 "$output/linux-user/loongarch64/syscall_nr.h"
rm -fr "$TMP"
Commit	Line	Data
	1	#!/bin/sh
	2	#
	3	# Update syscall_nr.h files from linux headers asm-generic/unistd.h
	4	#
	5	# This code is licensed under the GPL version 2 or later. See
	6	# the COPYING file in the top-level directory.
	7	#
	8
	9	linux="$1"
	10	output="$2"
	11
	12	TMP=$(mktemp -d)
	13
	14	if [ "$linux" = "" ] ; then
	15	echo "Needs path to linux source tree" 1>&2
	16	exit 1
	17	fi
	18
	19	if [ "$output" = "" ] ; then
	20	output="$PWD"
	21	fi
	22
	23	upper()
	24	{
	25	echo "$1" \| tr "[:lower:]" "[:upper:]" \| tr "[:punct:]" "_"
	26	}
	27
	28	qemu_arch()
	29	{
	30	case "$1" in
	31	arm64)
	32	echo "aarch64"
	33	;;
	34	*)
	35	echo "$1"
	36	;;
	37	esac
	38	}
	39
	40	read_includes()
	41	{
	42	arch=$1
	43	bits=$2
	44
	45	cpp -P -nostdinc -fdirectives-only \
	46	-D_UAPI_ASM_$(upper ${arch})_BITSPERLONG_H \
	47	-D__ASM_$(upper ${arch})_BITSPERLONG_H \
	48	-D__BITS_PER_LONG=${bits} \
	49	-I${linux}/arch/${arch}/include/uapi/ \
	50	-I${linux}/include/uapi \
	51	-I${TMP} \
	52	"${linux}/arch/${arch}/include/uapi/asm/unistd.h"
	53	}
	54
	55	filter_defines()
	56	{
	57	grep -e "#define __NR_" -e "#define __NR3264"
	58	}
	59
	60	rename_defines()
	61	{
	62	sed "s/ __NR_/ TARGET_NR_/g;s/(__NR_/(TARGET_NR_/g"
	63	}
	64
	65	evaluate_values()
	66	{
	67	sed "s/#define TARGET_NR_/QEMU TARGET_NR_/" \| \
	68	cpp -P -nostdinc \| \
	69	sed "s/^QEMU /#define /"
	70	}
	71
	72	generate_syscall_nr()
	73	{
	74	arch=$1
	75	bits=$2
	76	file="$3"
	77	guard="$(upper LINUX_USER_$(qemu_arch $arch)_$(basename "$file"))"
	78
	79	(echo "/*"
	80	echo " * This file contains the system call numbers."
	81	echo " * Do not modify."
	82	echo " * This file is generated by scripts/gensyscalls.sh"
	83	echo " */"
	84	echo "#ifndef ${guard}"
	85	echo "#define ${guard}"
	86	echo
	87	read_includes $arch $bits \| filter_defines \| rename_defines \| \
	88	evaluate_values \| sort -n -k 3
	89	echo
	90	echo "#endif /* ${guard} */") > "$file"
	91	}
	92
	93	mkdir "$TMP/asm"
	94	> "$TMP/asm/bitsperlong.h"
	95
	96	generate_syscall_nr arm64 64 "$output/linux-user/aarch64/syscall_nr.h"
	97	generate_syscall_nr openrisc 32 "$output/linux-user/openrisc/syscall_nr.h"
	98
	99	generate_syscall_nr riscv 32 "$output/linux-user/riscv/syscall32_nr.h"
	100	generate_syscall_nr riscv 64 "$output/linux-user/riscv/syscall64_nr.h"
	101	generate_syscall_nr hexagon 32 "$output/linux-user/hexagon/syscall_nr.h"
	102	generate_syscall_nr loongarch 64 "$output/linux-user/loongarch64/syscall_nr.h"
	103	rm -fr "$TMP"