term% cat index.txt GETCALLERPC(2) System Calls Manual GETCALLERPC(2)
NAME
getcallerpc - fetch return PC of current function
SYNOPSIS
#include <u.h>
#include <libc.h>
uintptr getcallerpc(void *firstarg)
DESCRIPTION
Getcallerpc is a portable way to discover the PC to which the current
function will return. Firstarg should be a pointer to the first argu‐
ment to the function in question.
EXAMPLE
void
printpc(int arg)
{
print("Called from %p\n", getcallerpc(&arg));
}
void
main(int argc, char *argv[])
{
printpc(0);
printpc(0);
printpc(0);
}
SOURCE
/sys/src/libc/$objtype/getcallerpc.[cs]
BUGS
The firstarg parameter should not be necessary.
GETCALLERPC(2)