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Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM4PEPF00025F98.EURPRD83.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB9052 X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, FORGED_SPF_HELO, GIT_PATCH_0, KAM_DMARC_NONE, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789615863426501960 X-GMAIL-MSGID: 1789615986488594453 Hi All, With recent updates to hwasan runtime libraries, the error reporting for this particular check is has been reworked. I would question why it has lost this message. To me it looks strange that num_descriptions_printed is incremented whenever we call PrintHeapOrGlobalCandidate whether that function prints anything or not. (See PrintAddressDescription in libsanitizer/hwasan/hwasan_report.cpp). The message is no longer printed because we increment this num_descriptions_printed variable indicating that we have found some description. I would like to question this upstream, but it doesn't look that much of a problem and if pressed for time we should just change our testsuite. Bootstrapped Regtested on aarch64-none-linux-gnu and no issues. Ok for master? Thanks, Tamar gcc/testsuite/ChangeLog: PR sanitizer/112644 * c-c++-common/hwasan/hwasan-thread-clears-stack.c: Update testcase. --- inline copy of patch -- diff --git a/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c b/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c index 09c72a56f0f50a8c301d89217aa8c7df70087e6c..6c70684d72a887c49b02ecb17ca097da81a9168f 100644 --- diff --git a/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c b/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c index 09c72a56f0f50a8c301d89217aa8c7df70087e6c..6c70684d72a887c49b02ecb17ca097da81a9168f 100644 --- a/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c +++ b/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c @@ -52,5 +52,4 @@ main (int argc, char **argv) /* { dg-output "HWAddressSanitizer: tag-mismatch on address 0x\[0-9a-f\]*.*" } */ /* { dg-output "READ of size 4 at 0x\[0-9a-f\]* tags: \[\[:xdigit:\]\]\[\[:xdigit:\]\]/00 \\(ptr/mem\\) in thread T0.*" } */ -/* { dg-output "HWAddressSanitizer can not describe address in more detail\..*" } */ /* { dg-output "SUMMARY: HWAddressSanitizer: tag-mismatch \[^\n\]*.*" } */ --- a/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c +++ b/gcc/testsuite/c-c++-common/hwasan/hwasan-thread-clears-stack.c @@ -52,5 +52,4 @@ main (int argc, char **argv) /* { dg-output "HWAddressSanitizer: tag-mismatch on address 0x\[0-9a-f\]*.*" } */ /* { dg-output "READ of size 4 at 0x\[0-9a-f\]* tags: \[\[:xdigit:\]\]\[\[:xdigit:\]\]/00 \\(ptr/mem\\) in thread T0.*" } */ -/* { dg-output "HWAddressSanitizer can not describe address in more detail\..*" } */ /* { dg-output "SUMMARY: HWAddressSanitizer: tag-mismatch \[^\n\]*.*" } */