From owner-svn-src-head@freebsd.org Wed Feb 19 14:32:57 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 183EE23C015; Wed, 19 Feb 2020 14:32:57 +0000 (UTC) (envelope-from kevans@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48N0Z02M8Fz4HlX; Wed, 19 Feb 2020 14:32:55 +0000 (UTC) (envelope-from kevans@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CC765A307; Wed, 19 Feb 2020 14:32:55 +0000 (UTC) (envelope-from kevans@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 01JEWtLI091412; Wed, 19 Feb 2020 14:32:55 GMT (envelope-from kevans@FreeBSD.org) Received: (from kevans@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 01JEWttF091411; Wed, 19 Feb 2020 14:32:55 GMT (envelope-from kevans@FreeBSD.org) Message-Id: <202002191432.01JEWttF091411@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kevans set sender to kevans@FreeBSD.org using -f From: Kyle Evans Date: Wed, 19 Feb 2020 14:32:55 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r358109 - head/usr.bin/kdump X-SVN-Group: head X-SVN-Commit-Author: kevans X-SVN-Commit-Paths: head/usr.bin/kdump X-SVN-Commit-Revision: 358109 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Feb 2020 14:32:57 -0000 Author: kevans Date: Wed Feb 19 14:32:55 2020 New Revision: 358109 URL: https://svnweb.freebsd.org/changeset/base/358109 Log: kdump: decode SHM_ANON as first arg to legacy shm_open(2) The first argument to shm_open(2) as well as shm_open2(2) may be a path or SHM_ANON. Decode SHM_ANON, at least- paths will show up as namei results in kdump output, which may be sufficient; in those cases, we'll have printed an address. Future commits will add support for shm_open2() to libsysdecode/truss/kdump. Reported by: kaktus MFC after: 3 days Modified: head/usr.bin/kdump/kdump.c Modified: head/usr.bin/kdump/kdump.c ============================================================================== --- head/usr.bin/kdump/kdump.c Wed Feb 19 14:29:47 2020 (r358108) +++ head/usr.bin/kdump/kdump.c Wed Feb 19 14:32:55 2020 (r358109) @@ -55,6 +55,7 @@ __FBSDID("$FreeBSD$"); #include #include #include +#include #include #include #include @@ -1248,7 +1249,12 @@ ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags) break; #ifdef SYS_freebsd12_shm_open case SYS_freebsd12_shm_open: - print_number(ip, narg, c); + if (ip[0] == (uintptr_t)SHM_ANON) { + printf("(SHM_ANON"); + ip++; + } else { + print_number(ip, narg, c); + } putchar(','); print_mask_arg(sysdecode_open_flags, ip[0]); putchar(',');