File: check_memcpy.c

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (20 lines) | stat: -rw-r--r-- 584 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
// Test that verifies TSan runtime doesn't contain compiler-emitted
// memcpy/memmove calls. It builds the binary with TSan and check's
// its objdump.

// This could fail if using a static libunwind because that static libunwind
// could be uninstrumented and contain memcpy/memmove calls not intercepted by
// tsan.
// REQUIRES: shared_unwind

// RUN: %clang_tsan -O1 %s -o %t
// RUN: llvm-objdump -d -l %t | FileCheck %s

int main() {
  return 0;
}

// CHECK-NOT: callq {{.*<(__interceptor_)?mem(cpy|set)>}}
// tail calls:
// CHECK-NOT: jmpq {{.*<(__interceptor_)?mem(cpy|set)>}}