1 cfa37a7b 2004-04-10 devnull .TH GETCALLERPC 3
3 cfa37a7b 2004-04-10 devnull getcallerpc \- fetch return PC of current function
4 cfa37a7b 2004-04-10 devnull .SH SYNOPSIS
6 cfa37a7b 2004-04-10 devnull .B #include <u.h>
8 cfa37a7b 2004-04-10 devnull .B #include <libc.h>
10 cfa37a7b 2004-04-10 devnull .B ulong getcallerpc(void *firstarg)
11 cfa37a7b 2004-04-10 devnull .SH DESCRIPTION
12 cfa37a7b 2004-04-10 devnull .I Getcallerpc
13 cfa37a7b 2004-04-10 devnull is a portable way to discover the PC to which the current function will return.
14 cfa37a7b 2004-04-10 devnull .I Firstarg
15 cfa37a7b 2004-04-10 devnull should be a pointer to the first argument to the function in question.
16 cfa37a7b 2004-04-10 devnull .SH EXAMPLE
20 cfa37a7b 2004-04-10 devnull printpc(ulong arg)
22 cfa37a7b 2004-04-10 devnull print("Called from %.8lux\en", getcallerpc(&arg));
26 cfa37a7b 2004-04-10 devnull main(int argc, char *argv[])
28 cfa37a7b 2004-04-10 devnull printpc(0);
29 cfa37a7b 2004-04-10 devnull printpc(0);
30 cfa37a7b 2004-04-10 devnull printpc(0);
33 cfa37a7b 2004-04-10 devnull .SH SOURCE
34 c3674de4 2005-01-11 devnull .B \*9/src/lib9/
37 cfa37a7b 2004-04-10 devnull .I firstarg
38 cfa37a7b 2004-04-10 devnull parameter should not be necessary.