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[XRay][compiler-rt] Remove dependency on FileCheck from function id utilities tests 

Follow-up on D32846 to simplify testing and not rely on FileCheck to
test boundary conditions, and instead do all the testing in code
instead.

llvm-svn: 302212
This commit is contained in:
Dean Michael Berris 2017-05-05 01:55:13 +00:00
parent 6a877cfec4
commit 6016158215
1 changed files with 14 additions and 18 deletions
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32
compiler-rt/test/xray/TestCases/Linux/func-id-utils.cc
View File

@ -2,45 +2,41 @@
// maximum function id for the current binary.
//
// RUN: %clangxx_xray -std=c++11 %s -o %t
// RUN: XRAY_OPTIONS="patch_premain=false xray_naive_log=false" %run %t | FileCheck %s
// RUN: XRAY_OPTIONS="patch_premain=false xray_naive_log=false" %run %t
#include "xray/xray_interface.h"
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <set>
#include <iterator>
#include <set>
[[clang::xray_always_instrument]] void bar(){
// do nothing!
}
[[clang::xray_always_instrument]] void bar(){}
[[clang::xray_always_instrument]] void foo() {
[[clang::xray_always_instrument]] void foo() {
bar();
}
[[clang::xray_always_instrument]] int main(int argc, char *argv[]) {
printf("max function id: %zu\n", __xray_max_function_id());
// CHECK: max function id: [[MAX:.*]]
std::set<void *> must_be_instrumented;
must_be_instrumented.insert(reinterpret_cast<void*>(&foo));
must_be_instrumented.insert(reinterpret_cast<void*>(&bar));
printf("addresses:\n");
assert(__xray_max_function_id() != 0 && "we need xray instrumentation!");
std::set<void *> must_be_instrumented = {reinterpret_cast<void *>(&foo),
reinterpret_cast<void *>(&bar),
reinterpret_cast<void *>(&main)};
std::set<void *> all_instrumented;
for (auto i = __xray_max_function_id(); i != 0; --i) {
auto addr = __xray_function_address(i);
printf("#%lu -> @%04lx\n", i, addr);
all_instrumented.insert(reinterpret_cast<void *>(addr));
}
assert(all_instrumented.size() == __xray_max_function_id() &&
"each function id must be assigned to a unique function");
// CHECK-LABEL: addresses:
// CHECK: #[[MAX]] -> @[[ADDR:.*]]
// CHECK-NOT: #0 -> @{{.*}}
std::set<void *> common;
std::set_intersection(all_instrumented.begin(), all_instrumented.end(),
must_be_instrumented.begin(),
must_be_instrumented.end(),
std::inserter(common, common.begin()));
assert(
common == must_be_instrumented &&
"we should see all explicitly instrumented functions with function ids");
return common == must_be_instrumented ? 0 : 1;
}