Improve the process for GNU tools

[minix3.git] / minix / usr.bin / trace / signal.awk

# 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");
}