[compiler-rt] r202037 - [asan] Add a test for interceptors in shared libraries.

Alexey Samsonov samsonov at google.com
Tue Feb 25 23:51:09 PST 2014


FYI, now this test fails on Mac with:

ld: unknown option: -R


On Tue, Feb 25, 2014 at 7:32 PM, Evgeniy Stepanov <eugeni.stepanov at gmail.com
> wrote:

> Indeed, everything seems to work fine without soname.
> Fixed in r202156.
>
> On Tue, Feb 25, 2014 at 6:59 PM, Alexander Potapenko <glider at google.com>
> wrote:
> > I think we do want a similar test on Mac. Maybe just omit the --soname
> flag?
> >
> > On Tue, Feb 25, 2014 at 6:31 PM, Alexey Samsonov <samsonov at google.com>
> wrote:
> >> Should this test be Linux-specific? It fails on Mac with:
> >> ld: unknown option: --soname
> >>
> >>
> >> On Mon, Feb 24, 2014 at 6:31 PM, Evgeniy Stepanov
> >> <eugeni.stepanov at gmail.com> wrote:
> >>>
> >>> Author: eugenis
> >>> Date: Mon Feb 24 08:31:28 2014
> >>> New Revision: 202037
> >>>
> >>> URL: http://llvm.org/viewvc/llvm-project?rev=202037&view=rev
> >>> Log:
> >>> [asan] Add a test for interceptors in shared libraries.
> >>>
> >>> Added:
> >>>
> >>>
> compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc
> >>> (with props)
> >>> Modified:
> >>>
> compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc
> >>>     compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc
> >>>
> >>> Modified:
> >>> compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc
> >>> URL:
> >>>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc?rev=202037&r1=202036&r2=202037&view=diff
> >>>
> >>>
> ==============================================================================
> >>> ---
> compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc
> >>> (original)
> >>> +++
> compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc
> >>> Mon Feb 24 08:31:28 2014
> >>> @@ -11,6 +11,7 @@
> >>>  //
> >>>
> >>>
> //===----------------------------------------------------------------------===//
> >>>  #include <stdio.h>
> >>> +#include <string.h>
> >>>
> >>>  int pad[10];
> >>>  int GLOB[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
> >>> @@ -24,3 +25,8 @@ extern "C"
> >>>  void inc2(int *a, int index) {
> >>>    a[index]++;
> >>>  }
> >>> +
> >>> +extern "C"
> >>> +void my_memset(void *p, size_t sz) {
> >>> +  memset(p, 0, sz);
> >>> +}
> >>>
> >>> Modified:
> >>> compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc
> >>> URL:
> >>>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc?rev=202037&r1=202036&r2=202037&view=diff
> >>>
> >>>
> ==============================================================================
> >>> --- compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc
> >>> (original)
> >>> +++ compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc
> >>> Mon Feb 24 08:31:28 2014
> >>> @@ -30,7 +30,7 @@ int main(int argc, char *argv[]) {
> >>>    inc2(array, -1);  // BOOM
> >>>    // CHECK: ERROR: AddressSanitizer: heap-buffer-overflow
> >>>    // CHECK: READ of size 4 at 0x{{.*}}
> >>> -  // CHECK: #0 {{.*}} in inc2 {{.*}}shared-lib-test-so.cc:25
> >>> +  // CHECK: #0 {{.*}} in inc2 {{.*}}shared-lib-test-so.cc:26
> >>>    // CHECK: #1 {{.*}} in main
> >>> {{.*}}asan-symbolize-sanity-test.cc:[[@LINE-4]]
> >>>    // CHECK: allocated by thread T{{.*}} here:
> >>>    // CHECK: #{{.*}} in {{(wrap_|__interceptor_)?}}malloc
> >>>
> >>> Added:
> >>>
> compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc
> >>> URL:
> >>>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc?rev=202037&view=auto
> >>>
> >>>
> ==============================================================================
> >>> ---
> >>>
> compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc
> >>> (added)
> >>> +++
> >>>
> compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc Mon
> >>> Feb 24 08:31:28 2014
> >>> @@ -0,0 +1,21 @@
> >>> +// Check that memset() call from a shared library gets intercepted.
> >>> +
> >>> +// RUN: %clangxx_asan -O0 %p/SharedLibs/shared-lib-test-so.cc \
> >>> +// RUN:     -shared -o %T/libinterception-in-shared-lib-test.so \
> >>> +// RUN:     -fPIC -Wl,--soname,libinterception-in-shared-lib-test.so
> >>> +// RUN: %clangxx_asan -O0 %s -o %t -Wl,-R,\$ORIGIN -L%T
> >>> -linterception-in-shared-lib-test && \
> >>> +// RUN:     not %t 2>&1 | FileCheck %s
> >>> +
> >>> +#include <stdio.h>
> >>> +#include <string.h>
> >>> +
> >>> +extern "C" void my_memset(void *p, size_t sz);
> >>> +
> >>> +int main(int argc, char *argv[]) {
> >>> +  char buf[10];
> >>> +  my_memset(buf, 11);
> >>> +  // CHECK: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}}
> >>> +  // CHECK: {{WRITE of size 11 at 0x.* thread T0}}
> >>> +  // CHECK: {{    #0 0x.* in my_memset .*shared-lib-test-so.cc:31}}
> >>> +  return 0;
> >>> +}
> >>>
> >>> Propchange:
> >>>
> compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc
> >>>
> >>>
> ------------------------------------------------------------------------------
> >>>     svn:eol-style = LF
> >>>
> >>>
> >>> _______________________________________________
> >>> llvm-commits mailing list
> >>> llvm-commits at cs.uiuc.edu
> >>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
> >>
> >>
> >>
> >>
> >> --
> >> Alexey Samsonov, MSK
> >
> >
> >
> > --
> > Alexander Potapenko
> > Software Engineer
> > Google Moscow
>



-- 
Alexey Samsonov, MSK
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