[PATCH] D18397: [sanitizer] Add strnlen to the common interceptors

[Derek Bruening via llvm-commits]

bruening created this revision.
bruening added a reviewer: samsonov.
bruening added subscribers: kcc, llvm-commits, zhaoqin.

Adds strnlen to the common interceptors, under the existing flag
intercept_strlen.

Removes the now-duplicate strnlen interceptor from asan and msan.
This adds strnlen to tsan, which previously did not intercept it.

Adds a new test of strnlen to the sanitizer_common test cases.

http://reviews.llvm.org/D18397

Files:
  lib/asan/asan_interceptors.cc
  lib/asan/asan_interceptors.h
  lib/msan/msan_interceptors.cc
  lib/sanitizer_common/sanitizer_common_interceptors.inc
  lib/sanitizer_common/sanitizer_flags.inc
  lib/sanitizer_common/sanitizer_platform_interceptors.h
  test/sanitizer_common/TestCases/strnlen.c

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