From owner-dev-commits-src-all@freebsd.org Mon Mar 1 14:08:24 2021 Return-Path: Delivered-To: dev-commits-src-all@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 EF63755E79D; Mon, 1 Mar 2021 14:08:23 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Dq2D74CrCz4ZXJ; Mon, 1 Mar 2021 14:08:23 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 6C9FB24BF0; Mon, 1 Mar 2021 14:08:23 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 121E8NEH040559; Mon, 1 Mar 2021 14:08:23 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 121E8NSR040558; Mon, 1 Mar 2021 14:08:23 GMT (envelope-from git) Date: Mon, 1 Mar 2021 14:08:23 GMT Message-Id: <202103011408.121E8NSR040558@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mitchell Horne Subject: git: e152c882738f - main - arm64: add definition for IS_SSTEP_TRAP() MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: mhorne X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: e152c882738ffe26a2f52e420e2a92c014943207 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Mar 2021 14:08:25 -0000 The branch main has been updated by mhorne: URL: https://cgit.FreeBSD.org/src/commit/?id=e152c882738ffe26a2f52e420e2a92c014943207 commit e152c882738ffe26a2f52e420e2a92c014943207 Author: Mitchell Horne AuthorDate: 2021-03-01 14:01:25 +0000 Commit: Mitchell Horne CommitDate: 2021-03-01 14:04:23 +0000 arm64: add definition for IS_SSTEP_TRAP() arm64 has a distinct exception code for single-step, so we can use this to detect when an unexpected SS trap is encountered, or when an expected one is not. See db_stop_at_pc(). Reviewed by: markj, jhb MFC after: 5 days Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D28942 --- sys/arm64/include/db_machdep.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/arm64/include/db_machdep.h b/sys/arm64/include/db_machdep.h index 61b58415e41c..105e8e507ce3 100644 --- a/sys/arm64/include/db_machdep.h +++ b/sys/arm64/include/db_machdep.h @@ -38,6 +38,7 @@ #include #define T_BREAKPOINT (EXCP_BRK) +#define T_SINGLESTEP (EXCP_SOFTSTP_EL1) #define T_WATCHPOINT (EXCP_WATCHPT_EL1) typedef vm_offset_t db_addr_t; @@ -58,6 +59,7 @@ typedef long db_expr_t; #define db_set_single_step kdb_cpu_set_singlestep #define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT) +#define IS_SSTEP_TRAP(type, code) (type == T_SINGLESTEP) #define IS_WATCHPOINT_TRAP(type, code) (type == T_WATCHPOINT) #define inst_trap_return(ins) (0)