From patchwork Fri Jan 24 00:33:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Myers X-Patchwork-Id: 37524 Received: (qmail 3219 invoked by alias); 24 Jan 2020 00:33:24 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 3203 invoked by uid 89); 24 Jan 2020 00:33:24 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-15.2 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, SPF_PASS autolearn=ham version=3.3.1 spammy= X-HELO: esa2.mentor.iphmx.com IronPort-SDR: ++s4sJ6ijXazq9pWjCcMXYA4GDqNafSs4II4gcUXMCPi+BY6nrhHTzpTYbGTMZAUuX6pCrUVYf YYFNiuQALaB3V6N54Ne0HyDgcHTfmfSv5/YG83/C+6QRj8INF8Qtvh+MGD5Z/tXTmUzjfXUoOZ 1iuEfGPH+ETTC0i1qMsccoLusQrFn3iUBU0EqEHCm8E/68OS6vnUVweUd+emjBn5QtYjg5ABjJ tPENwIbPunHO2/L7Z1Y6tkRV0LL3HLyM89TVMayzVZe02YI+1KtV7JHah8pYWgD2CrgW2Scgds Bso= IronPort-SDR: ojnxhWasLr/hasHkxxzVMzdOKRACulXh8qsamq4iaWROTU3rDjhSZfeXLK897d0EygtO410oMf RbPbKBtm7I/g== Date: Fri, 24 Jan 2020 00:33:16 +0000 From: Joseph Myers To: CC: Subject: Build raise with -fasynchronous-unwind-tables Message-ID: User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Return-Path: joseph@codesourcery.com In testing glibc for Arm and MIPS, I see: FAIL: misc/tst-sigcontext-get_pc If this test - backtracing through a call to raise - is valid, then raise needs to be built with -fasynchronous-unwind-tables (as the test itself is) to have the required unwind information for that backtracing to work. Adding that option, which this patch does, causes the test for pass for Arm. For MIPS, the test still does not pass (the backtrace has an address that is 2 bytes after the "address in signal handler", for unknown reasons), although the patch allows a longer backtrace to be produced. diff --git a/signal/Makefile b/signal/Makefile index 7da67def84..37de438bba 100644 --- a/signal/Makefile +++ b/signal/Makefile @@ -52,6 +52,7 @@ tests := tst-signal tst-sigset tst-sigsimple tst-raise tst-sigset2 \ include ../Rules +CFLAGS-raise.c += -fasynchronous-unwind-tables CFLAGS-sigpause.c += -fexceptions CFLAGS-sigsuspend.c += -fexceptions -fasynchronous-unwind-tables CFLAGS-sigtimedwait.c += -fexceptions -fasynchronous-unwind-tables