Source code of Windows XP (NT5)
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130 lines
2.5 KiB

BEGIN {
FSECTION = 0;
FSYMBOLS = 0;
ISECTION = 0;
}
/ Start Length Name Class/ {
FSECTION = 1;
next;
}
/^ entry/ {
next;
}
/ Address Publics by Value/ {
FSECTION = 0;
FSYMBOLS = 1;
next;
}
/^FIXUPS:/ {
FSYMBOLS = 0;
next;
}
{
if (FSECTION) {
do_section($0);
}
else if (FSYMBOLS) {
do_symbol($0);
}
}
function do_section( line, n, fields, subfields, sindex, soffset, slen, sname )
{
if (length(line) == 0)
return;
n = split( line, fields );
n = split( fields[1], subfields, ":" );
sindex = hex2dec( subfields[1] );
soffset = hex2dec( subfields[2] );
slen = hex2dec( fields[2] );
sname = fields[3];
SEC_INDEX[ISECTION] = sindex;
SEC_OFFSET[ISECTION] = soffset;
SEC_NAME[ISECTION] = sname;
ISECTION++;
write_sym( sname, soffset, "????", ".start.");
write_sym( sname, soffset + slen, "????", ".end.");
}
function do_symbol( line, n, fields, subfields, sindex, sname, syoffset, modname, symname )
{
if (length(line) == 0)
return;
n = split( line, fields );
if (n != 4 && n != 5)
return;
n = split( fields[1], subfields, ":");
sindex = hex2dec( subfields[1] );
syoffset = hex2dec( subfields[2] );
modname = get_modname( fields[2] );
symname = get_symname( fields[2] );
sname = find_section(sindex, syoffset);
write_sym( sname, syoffset, modname, symname);
}
function find_section( seg, offset, i )
{
for (i = 1; i < ISECTION; i++)
{
if (SEC_INDEX[i] > seg ||
(SEC_INDEX[i] == seg && SEC_OFFSET[i] > offset))
{
return SEC_NAME[i-1];
}
}
return SEC_NAME[ISECTION - 1];
}
function hex2dec(x, h, i, n, l, d, v)
{
h = "0123456789ABCDEF..........abcdef";
n = 0;
for (i = 1; i <= length(x); i++)
{
d = substr(x, i, 1);
v = (index(h, d) - 1) % 16;
if (v >= 0)
n = 16*n + v;
}
return n;
}
function get_modname( str, i1, i2, result, c)
{
i1 = index(str, "@");
i2 = i1 + index(substr(str, i1 + 1), "@");
result = "";
if (i2 > i1 + 1)
result = substr(str, i1 + 1, i2 - i1 - 1);
c = substr(result, 1, 1);
if (result == "" || index("0123456789", c) != 0)
result = "UNKNOWN";
return result;
}
function get_symname( str, i1, result, c )
{
i1 = index(str, "@");
if (i1 == 0)
return substr(str, 1, 25);
result = substr(str, 1, i1 -1);
c = substr(result, 1, 1);
if (c == "?")
result = substr(result, 2);
result = substr(result, 1, 25);
return result;
}
function write_sym( secname, symoffset, modname, symname)
{
printf("%-12s", secname);
printf("%8d ", symoffset);
printf("%-18s", modname);
printf(" %-25s\n", symname);
}