Author: aizatsky Date: Wed Feb 8 15:28:39 2017 New Revision: 294522 URL: http://llvm.org/viewvc/llvm-project?rev=294522&view=rev Log: [sancov] pc_guard_init is called at least once per DSO.
Summary: Documentation update for https://reviews.llvm.org/D29662 Differential Revision: https://reviews.llvm.org/D29722 Modified: cfe/trunk/docs/SanitizerCoverage.rst Modified: cfe/trunk/docs/SanitizerCoverage.rst URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/SanitizerCoverage.rst?rev=294522&r1=294521&r2=294522&view=diff ============================================================================== --- cfe/trunk/docs/SanitizerCoverage.rst (original) +++ cfe/trunk/docs/SanitizerCoverage.rst Wed Feb 8 15:28:39 2017 @@ -355,7 +355,8 @@ The compler will also insert a module co .. code-block:: c++ // The guards are [start, stop). - // This function may be called multiple times with the same values of start/stop. + // This function will be called at least once per DSO and may be called + // more than once with the same values of start/stop. __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop); With `trace-pc-guards,indirect-calls` @@ -373,10 +374,10 @@ Example: #include <sanitizer/coverage_interface.h> // This callback is inserted by the compiler as a module constructor - // into every compilation unit. 'start' and 'stop' correspond to the + // into every DSO. 'start' and 'stop' correspond to the // beginning and end of the section with the guards for the entire - // binary (executable or DSO) and so it will be called multiple times - // with the same parameters. + // binary (executable or DSO). The callback will be called at least + // once per DSO and may be called multiple times with the same parameters. extern "C" void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) { static uint64_t N; // Counter for the guards. _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
