| 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 | |