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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - sanitized build of clang does not work with thinlto"
   href="https://bugs.llvm.org/show_bug.cgi?id=37575">37575</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>sanitized build of clang does not work with thinlto
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>compiler-rt
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>compiler-rt
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>hiraditya@msn.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Steps to repro:
1. Build clang with address sanitizer on.

cmake -DCMAKE_BUILD_TYPE:STRING=Debug
-DCMAKE_C_FLAGS_DEBUG:STRING=-g -fsanitize=address
-DCMAKE_CXX_FLAGS_DEBUG:STRING=-g -fsanitize=address


2. clang -flto=thin a.c b.c -Oz
==73085==ERROR: Interceptors are not working. This may be because
AddressSanitizer is loaded too late (e.g. via dlopen). Please launch the
executable with:
DYLD_INSERT_LIBRARIES=/Applications/Xcode_9.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/9.1.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib


$ cat a.c
void foo() {
}

$ cat b.c
void foo();
int main() {
  foo();
  return 0;
}

Even exporting the dylib before the launch does not work.
export
DYLD_INSERT_LIBRARIES=/Applications/Xcode_9.3.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/9.1.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib</pre>
        </div>
      </p>


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