src/compiler-rt/test/asan/TestCases/coverage-order-pcs.cc

   1 // Test coverage_order_pcs=1 flag which orders the PCs by their appearance.
   2 // RUN: DIR=%T/coverage-order-pcs
   3 // RUN: rm -rf $DIR
   4 // RUN: mkdir $DIR
   5 // RUN: %clangxx_asan -fsanitize-coverage=func %s -o %t
   6 // RUN: %env_asan_opts=coverage_dir=$DIR:coverage=1:coverage_order_pcs=0 %run %t
   7 // RUN: mv $DIR/*sancov $DIR/A
   8
   9 // RUN: %env_asan_opts=coverage_dir=$DIR:coverage=1:coverage_order_pcs=0 %run %t 1
  10 // RUN: mv $DIR/*sancov $DIR/B
  11
  12 // RUN: %env_asan_opts=coverage_dir=$DIR:coverage=1:coverage_order_pcs=1 %run %t
  13 // RUN: mv $DIR/*sancov $DIR/C
  14
  15 // RUN: %env_asan_opts=coverage_dir=$DIR:coverage=1:coverage_order_pcs=1 %run %t 1
  16 // RUN: mv $DIR/*sancov $DIR/D
  17 //
  18 // RUN: (%sancov print $DIR/A; %sancov print $DIR/B; %sancov print $DIR/C; %sancov print $DIR/D) | FileCheck %s
  19 //
  20 // RUN: rm -rf $DIR
  21 // Ordering works only in 64-bit mode for now.
  22 // REQUIRES: asan-64-bits
  23 // UNSUPPORTED: android
  24 #include <stdio.h>
  25
  26 void foo() { fprintf(stderr, "FOO\n"); }
  27 void bar() { fprintf(stderr, "BAR\n"); }
  28
  29 int main(int argc, char **argv) {
  30   if (argc == 2) {
  31     foo();
  32     bar();
  33   } else {
  34     bar();
  35     foo();
  36   }
  37 }
  38
  39 // Run A: no ordering
  40 // CHECK: [[FOO:0x[0-9a-f]*]]
  41 // CHECK-NEXT: [[BAR:0x[0-9a-f]*]]
  42 // CHECK-NEXT: [[MAIN:0x[0-9a-f]*]]
  43 //
  44 // Run B: still no ordering
  45 // CHECK-NEXT: [[FOO]]
  46 // CHECK-NEXT: [[BAR]]
  47 // CHECK-NEXT: [[MAIN]]
  48 //
  49 // Run C: MAIN, BAR, FOO
  50 // CHECK-NEXT: [[MAIN]]
  51 // CHECK-NEXT: [[BAR]]
  52 // CHECK-NEXT: [[FOO]]
  53 //
  54 // Run D: MAIN, FOO, BAR
  55 // CHECK-NEXT: [[MAIN]]
  56 // CHECK-NEXT: [[FOO]]
  57 // CHECK-NEXT: [[BAR]]