https://github.com/vitalybuka updated https://github.com/llvm/llvm-project/pull/101105
>From 0cc4d622752005ff3c615d0d4eafe1c366665d9c Mon Sep 17 00:00:00 2001 From: Vitaly Buka <vitalyb...@google.com> Date: Mon, 29 Jul 2024 17:06:32 -0700 Subject: [PATCH 1/3] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20in?= =?UTF-8?q?itial=20version?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Created using spr 1.3.4 --- clang/docs/MemorySanitizer.rst | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/clang/docs/MemorySanitizer.rst b/clang/docs/MemorySanitizer.rst index bcc6cc808e8ba..024bed25243b9 100644 --- a/clang/docs/MemorySanitizer.rst +++ b/clang/docs/MemorySanitizer.rst @@ -8,11 +8,18 @@ MemorySanitizer Introduction ============ -MemorySanitizer is a detector of uninitialized reads. It consists of a +MemorySanitizer is a detector of uninitialized memory use. It consists of a compiler instrumentation module and a run-time library. Typical slowdown introduced by MemorySanitizer is **3x**. +Here is a not comprehensive list cases when MemorySanitizer will report an error: + +* Conditional branches controlled by uninitialized values. +* Using uninitalized pointers for memory accesses. +* Passing and returning uninitialized values to/from function calls. Can be disabled with ``-fno-sanitize-memory-param-retval``. +* Passing uninitialized data into libc calls. + How to build ============ >From 7f4089f5c0271545bce8ccd4a31c9e3cf8b2eb9c Mon Sep 17 00:00:00 2001 From: Vitaly Buka <vitalyb...@google.com> Date: Mon, 29 Jul 2024 17:16:22 -0700 Subject: [PATCH 2/3] update Created using spr 1.3.4 --- clang/docs/MemorySanitizer.rst | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/clang/docs/MemorySanitizer.rst b/clang/docs/MemorySanitizer.rst index 024bed25243b9..118177840add6 100644 --- a/clang/docs/MemorySanitizer.rst +++ b/clang/docs/MemorySanitizer.rst @@ -15,10 +15,10 @@ Typical slowdown introduced by MemorySanitizer is **3x**. Here is a not comprehensive list cases when MemorySanitizer will report an error: -* Conditional branches controlled by uninitialized values. -* Using uninitalized pointers for memory accesses. -* Passing and returning uninitialized values to/from function calls. Can be disabled with ``-fno-sanitize-memory-param-retval``. -* Passing uninitialized data into libc calls. +* A code uses uninitialized value in a conditional branch. +* Uninitialized pointer was used for memory accesses. +* Uninitialized value passed or returned from a function call, when it considered an undefined behavior. The check can be disabled with ``-fno-sanitize-memory-param-retval``. +* Uninitialized data was passed into some libc calls. How to build ============ >From 016e6fb760ce37d0541b4e7f33b5d2def9ee055f Mon Sep 17 00:00:00 2001 From: Vitaly Buka <vitalyb...@google.com> Date: Tue, 30 Jul 2024 10:13:13 -0700 Subject: [PATCH 3/3] Update MemorySanitizer.rst --- clang/docs/MemorySanitizer.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/clang/docs/MemorySanitizer.rst b/clang/docs/MemorySanitizer.rst index 118177840add6..9775080360d49 100644 --- a/clang/docs/MemorySanitizer.rst +++ b/clang/docs/MemorySanitizer.rst @@ -13,11 +13,11 @@ compiler instrumentation module and a run-time library. Typical slowdown introduced by MemorySanitizer is **3x**. -Here is a not comprehensive list cases when MemorySanitizer will report an error: +Here is a not comprehensive of list cases when MemorySanitizer will report an error: -* A code uses uninitialized value in a conditional branch. +* Uninitialized value was used in a conditional branch. * Uninitialized pointer was used for memory accesses. -* Uninitialized value passed or returned from a function call, when it considered an undefined behavior. The check can be disabled with ``-fno-sanitize-memory-param-retval``. +* Uninitialized value passed or returned from a function call, which is considered an undefined behavior. The check can be disabled with ``-fno-sanitize-memory-param-retval``. * Uninitialized data was passed into some libc calls. How to build _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
