[llvm-commits] [compiler-rt] r168513 - in /compiler-rt/trunk/lib/asan/lit_tests: Linux/swapcontext_test.cc swapcontext_test.cc

[Alexey Samsonov]

Author: samsonov
Date: Fri Nov 23 05:20:54 2012
New Revision: 168513

URL: http://llvm.org/viewvc/llvm-project?rev=168513&view=rev
Log:
[ASan] move swapcontext_test to Linux-specific tests

Added:
    compiler-rt/trunk/lib/asan/lit_tests/Linux/swapcontext_test.cc
      - copied unchanged from r168508, compiler-rt/trunk/lib/asan/lit_tests/swapcontext_test.cc
Removed:
    compiler-rt/trunk/lib/asan/lit_tests/swapcontext_test.cc

Removed: compiler-rt/trunk/lib/asan/lit_tests/swapcontext_test.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/lit_tests/swapcontext_test.cc?rev=168512&view=auto
==============================================================================
--- compiler-rt/trunk/lib/asan/lit_tests/swapcontext_test.cc (original)
+++ compiler-rt/trunk/lib/asan/lit_tests/swapcontext_test.cc (removed)
@@ -1,66 +0,0 @@
-// Check that ASan plays well with easy cases of makecontext/swapcontext.
-
-// RUN: %clangxx_asan -m64 -O0 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m64 -O1 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m64 -O2 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m64 -O3 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m32 -O0 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m32 -O1 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m32 -O2 %s -o %t && %t 2>&1 | FileCheck %s
-// RUN: %clangxx_asan -m32 -O3 %s -o %t && %t 2>&1 | FileCheck %s
-
-#include <stdio.h>
-#include <ucontext.h>
-#include <unistd.h>
-
-ucontext_t orig_context;
-ucontext_t child_context;
-
-void Child(int mode) {
-  char x[32] = {0};  // Stack gets poisoned.
-  printf("Child: %p\n", x);
-  // (a) Do nothing, just return to parent function.
-  // (b) Jump into the original function. Stack remains poisoned unless we do
-  //     something.
-  if (mode == 1) {
-    if (swapcontext(&child_context, &orig_context) < 0) {
-      perror("swapcontext");
-      _exit(0);
-    }
-  }
-}
-
-int Run(int arg, int mode) {
-  const int kStackSize = 1 << 20;
-  char child_stack[kStackSize + 1];
-  printf("Child stack: %p\n", child_stack);
-  // Setup child context.
-  getcontext(&child_context);
-  child_context.uc_stack.ss_sp = child_stack;
-  child_context.uc_stack.ss_size = kStackSize / 2;
-  if (mode == 0) {
-    child_context.uc_link = &orig_context;
-  }
-  makecontext(&child_context, (void (*)())Child, 1, mode);
-  if (swapcontext(&orig_context, &child_context) < 0) {
-    perror("swapcontext");
-    return 0;
-  }
-  // Touch childs's stack to make sure it's unpoisoned.
-  for (int i = 0; i < kStackSize; i++) {
-    child_stack[i] = i;
-  }
-  return child_stack[arg];
-}
-
-int main(int argc, char **argv) {
-  // CHECK: WARNING: ASan doesn't fully support makecontext/swapcontext
-  int ret = 0;
-  ret += Run(argc - 1, 0);
-  printf("Test1 passed\n");
-  // CHECK: Test1 passed
-  ret += Run(argc - 1, 1);
-  printf("Test2 passed\n");
-  // CHECK: Test2 passed
-  return ret;
-}