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 argument 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.
Copyright © 2017 Alcatel-Lucent. All rights reserved.