1 | // This test checks that the ifuncs works after bolt. |
2 | // Compiling with 00 results in IFUNC indirect calling. |
3 | |
4 | // RUN: %clang %cflags -O0 -no-pie %s -fuse-ld=lld \ |
5 | // RUN: -o %t.exe -Wl,-q |
6 | // RUN: llvm-bolt %t.exe -o %t.bolt.exe --use-old-text=0 --lite=0 |
7 | // RUN: %t.bolt.exe | FileCheck %s |
8 | |
9 | // RUN: %clang %cflags -O3 -no-pie %s -fuse-ld=lld \ |
10 | // RUN: -o %t.O3.exe -Wl,-q |
11 | // RUN: llvm-bolt %t.O3.exe -o %t.O3.bolt.exe --use-old-text=0 --lite=0 |
12 | // RUN: %t.O3.bolt.exe | FileCheck %s |
13 | |
14 | // CHECK: foo |
15 | |
16 | #include <stdio.h> |
17 | #include <string.h> |
18 | |
19 | static void foo() { printf(format: "foo\n" ); } |
20 | |
21 | static void *resolver_foo(void) { return foo; } |
22 | |
23 | __attribute__((ifunc("resolver_foo" ))) void ifoo(); |
24 | |
25 | static void *resolver_memcpy(void) { return memcpy; } |
26 | |
27 | __attribute__((ifunc("resolver_memcpy" ))) void * |
28 | imemcpy(void *dest, const void *src, size_t n); |
29 | |
30 | int main() { |
31 | int a = 0xdeadbeef, b = 0; |
32 | imemcpy(dest: &b, src: &a, n: sizeof(b)); |
33 | if (a != b) |
34 | return -1; |
35 | |
36 | ifoo(); |
37 | } |
38 | |