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# Read the symbols list and create regexs to use for processing readelf output.
function read_symbols() {
COUNT = 0;
while ((getline line < SYMBOLS_FILE) > 0) {
if (line ~ /^ *#/ || line ~ /^$/)
continue;
nfields = split(line, fields);
symbol = fields[1];
syscall = nfields > 1 ? fields[2] : symbol;
c = ++COUNT
SYMBOLS[c] = symbol;
SYSCALLS[c] = syscall;
}
}
BEGIN {
read_symbols();
if (MODE == "gen") {
for (x in SYSCALLS) {
print "SB_" SYMBOLS[x] " = SYS_" SYSCALLS[x];
}
exit(0);
}
}
function out(name, syscall, val)
{
uname = toupper(name)
syscall_define = "SB_SYS" syscall_prefix "_" uname
print "#define " syscall_define " " val;
if (name == syscall)
print "S(" uname ")";
else
print "{ " syscall_define ", SB_NR_" uname ", \"" uname "\" },";
}
{
# found: SB_func = <something>
# not found: SB_func = SYS_func
if ($1 !~ /^SB_/)
next;
if ($3 ~ /^SYS_/)
next;
sub(/^SB_/, "", $1);
name = $1
# accept everything after the "=" in case it's either
# a straight number or an expression (a syscall base)
sub(/^[^=]*= /, "");
syscall = "<awk_script_error>";
for (i = 1; i <= COUNT; ++i) {
if (SYMBOLS[i] == name) {
FOUND[i] = 1;
syscall = SYSCALLS[i];
break;
}
}
out(name, syscall, $0);
}
END {
if (MODE != "gen") {
for (x in SYMBOLS) {
if (!FOUND[x])
out(SYMBOLS[x], SYSCALLS[x], "SB_NR_UNDEF");
}
}
}
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