Plan 9 /sys/man/2/getcallerpc

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]


	`#include <u.h> #include <libc.h>` `uintptr getcallerpc(void *firstarg)`


	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.


	The firstarg parameter should not be necessary.