nes-proj/tools/mknmlist

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function sort(V, N, tmp, i, j) {
V[-1] = ""; # Used as a sentinel before V[0].
for (i = 1; i < N; i++)
for (j = i; V[j - 1] > V[j]; j--) {
tmp = V[j];
V[j] = V[j - 1];
V[j - 1] = tmp;
}
return;
}
BEGIN {
nname = 0;
builtin["printf"] = "int printf(const char *, ...)";
builtin["sprintf"] = "int sprintf(char *, const char *, ...)";
builtin["malloc"] = "void *malloc()";
builtin["calloc"] = "void *calloc()";
builtin["memcpy"] = "void *memcpy()";
builtin["memset"] = "void *memset()";
builtin["memmove"] = "void *memmove()";
builtin["strcpy"] = "char *strcpy()";
builtin["strchr"] = "char *strchr()";
builtin[""] = "";
}
/^[0123456789abcdef]+ [ABCDGRSTUVW] [^__]/ {
if ($3 != "symbols" && $3 != "symbols_nelts") {
name[nname] = $3;
nname++;
}
}
END {
sort(name, nname);
print "#include \"loader/symbols.h\"\n";
# Must deal with compiler builtins etc.
for (x = 0; x < nname; x++) {
if (builtin[name[x]] != "")
print builtin[name[x]] ";";
else
print "extern int " name[x]"();";
}
print "\n";
# nname++: An { 0, 0 } entry is added at the end of the vector.
print "const int symbols_nelts = " nname+1 ";";
print "const struct symbols symbols[" nname+1 "] = {";
for (x = 0; x < nname; x++)
print "{ \"" name[x] "\", (void *)&"name[x]" },";
print "{ (const char *)0, (void *)0} };";
}