34 lines
1.3 KiB
C++
34 lines
1.3 KiB
C++
// Check that a stack unwinding algorithm works corretly even with the assembly
|
|
// instrumentation.
|
|
|
|
// REQUIRES: x86_64-target-arch
|
|
// RUN: %clangxx_asan -g -O1 %s -fno-inline-functions -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -mllvm -asan-instrument-assembly -o %t && not %run %t 2>&1 | FileCheck %s
|
|
// RUN: %clangxx_asan -g -O1 %s -fno-inline-functions -fomit-frame-pointer -momit-leaf-frame-pointer -mllvm -asan-instrument-assembly -o %t && not %run %t 2>&1 | FileCheck %s
|
|
// RUN: %clangxx_asan -g0 -O1 %s -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-exceptions -fno-inline-functions -fomit-frame-pointer -momit-leaf-frame-pointer -mllvm -asan-instrument-assembly -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-nounwind
|
|
|
|
#include <cstddef>
|
|
|
|
// CHECK: READ of size 4
|
|
// CHECK-NEXT: {{#0 0x[0-9a-fA-F]+ in foo}}
|
|
// CHECK-NEXT: {{#1 0x[0-9a-fA-F]+ in main}}
|
|
|
|
// CHECK-nounwind: READ of size 4
|
|
// CHECK-nounwind-NEXT: {{#0 0x[0-9a-fA-F]+ in foo}}
|
|
|
|
__attribute__((noinline)) int foo(size_t n, int *buffer) {
|
|
int r;
|
|
__asm__("movl (%[buffer], %[n], 4), %[r] \n\t"
|
|
: [r] "=r"(r)
|
|
: [buffer] "r"(buffer), [n] "r"(n)
|
|
: "memory");
|
|
return r;
|
|
}
|
|
|
|
int main() {
|
|
const size_t n = 16;
|
|
int *buffer = new int[n];
|
|
foo(n, buffer);
|
|
delete[] buffer;
|
|
return 0;
|
|
}
|