external-call.c
684 Bytes
// RUN: %clang_cfi -lm -o %t1 %s
// RUN: %t1 c 1 2>&1 | FileCheck --check-prefix=CFI %s
// RUN: %t1 s 2 2>&1 | FileCheck --check-prefix=CFI %s
// This test uses jump tables containing PC-relative references to external
// symbols, which the Mach-O object writer does not currently support.
// The test passes on i386 Darwin and fails on x86_64, hence unsupported instead of xfail.
// UNSUPPORTED: darwin
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
int main(int argc, char **argv) {
// CFI: 1
fprintf(stderr, "1\n");
double (*fn)(double);
if (argv[1][0] == 's')
fn = sin;
else
fn = cos;
fn(atof(argv[2]));
// CFI: 2
fprintf(stderr, "2\n");
}