mstrace

syscalls.sh (1102B)

#!/bin/sh
while read syscall args
do
	fmt='"%s("'
	fmt_args='str_syscalls[nr]'
	fmt_sep=''
	n=0
	for i in $args; do
		case $i in
		"")
			break
			;;
		"size")
			fmt="${fmt}${fmt_sep}\"%zd\""
			fmt_args="${fmt_args}, (size_t)args[$n]"
			;;
		"off")
			fmt="${fmt}${fmt_sep}Pri_u"
			fmt_args="${fmt_args}, (off_t)args[$n]"
			;;
		"uint")
			fmt="${fmt}${fmt_sep}Pri_u"
			fmt_args="${fmt_args}, (uint64_t)args[$n]"
			;;
		"int")
			fmt="${fmt}${fmt_sep}Pri_i"
			fmt_args="${fmt_args}, (int64_t)args[$n]"
			;;
		"oct")
			fmt="${fmt}${fmt_sep}Pri_o"
			fmt_args="${fmt_args}, (int64_t)args[$n]"
			;;
		"hex"|"buf")
			fmt="${fmt}${fmt_sep}Pri_x"
			fmt_args="${fmt_args}, (int64_t)args[$n]"
			;;
		"path")
			fmt="${fmt}${fmt_sep}Pri_str"
			fmt_args="${fmt_args}, read_str(args[$n], PATH_MAX)"
			;;
		*)
			echo "syscalls.sh: error: Unhandled type ${i}" >&2
			exit 1
		esac
		: $((n+=1))
		fmt_sep=' ", " '
	done
	fmt="${fmt}"' ")"'
	printf '	case SYS_%s:\n' "$syscall"
	printf '		fprintf(stderr, %s, %s);\n' "$fmt" "$fmt_args"
	printf '		return;\n'
done <syscalls.txt >syscalls_cases.h