# This one is a bit trickier than error.awk, because sys/signal.h is not as
# easy to parse.  We currently assume that all (userland) signals are listed
# before the first reference to "_KERNEL", and anything else that looks like a
# signal definition (but isn't) is after that first reference.

BEGIN {
	printf("/* This file is automatically generated by signal.awk */\n\n");
	printf("#include \"inc.h\"\n\n");
	printf("static const char *const signals[] = {\n");
}
/^#define/ {
	name = $2;
	if (!match(name, "SIG[^_]"))
		next;
	number = $3;
	if (number < 0 || number == "SIGABRT")
		next;
	printf("\t[%s] = \"%s\",\n", name, name);
}
/_KERNEL/ {
	exit;
}
END {
	printf("};\n\n");
	printf("const char *\nget_signal_name(int sig)\n{\n\n");
	printf("\tif (sig >= 0 && (unsigned int)sig < __arraycount(signals) &&\n");
	printf("\t    signals[sig] != NULL)\n");
	printf("\t\treturn signals[sig];\n");
	printf("\telse\n");
	printf("\t\treturn NULL;\n");
	printf("}\n");
}