From owner-svn-src-head@freebsd.org Thu Aug 22 00:35:18 2019 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 20BA2D8E74; Thu, 22 Aug 2019 00:35:18 +0000 (UTC) (envelope-from cem@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 46DQY16zpGz3JdQ; Thu, 22 Aug 2019 00:35:17 +0000 (UTC) (envelope-from cem@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 D21AB23E7E; Thu, 22 Aug 2019 00:35:17 +0000 (UTC) (envelope-from cem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x7M0ZHqc088143; Thu, 22 Aug 2019 00:35:17 GMT (envelope-from cem@FreeBSD.org) Received: (from cem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x7M0ZH3R088142; Thu, 22 Aug 2019 00:35:17 GMT (envelope-from cem@FreeBSD.org) Message-Id: <201908220035.x7M0ZH3R088142@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cem set sender to cem@FreeBSD.org using -f From: Conrad Meyer Date: Thu, 22 Aug 2019 00:35:17 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r351369 - head/sys/amd64/include X-SVN-Group: head X-SVN-Commit-Author: cem X-SVN-Commit-Paths: head/sys/amd64/include X-SVN-Commit-Revision: 351369 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: Thu, 22 Aug 2019 00:35:18 -0000 Author: cem Date: Thu Aug 22 00:35:17 2019 New Revision: 351369 URL: https://svnweb.freebsd.org/changeset/base/351369 Log: gdb(4):amd64: Bump MI GDB_BUFSZ for more efficient transfers A bigger buffer reduces the RTTs to transfer long messages and is otherwise relatively harmless, especially on systems with plenty of memory. Modified: head/sys/amd64/include/gdb_machdep.h Modified: head/sys/amd64/include/gdb_machdep.h ============================================================================== --- head/sys/amd64/include/gdb_machdep.h Thu Aug 22 00:34:11 2019 (r351368) +++ head/sys/amd64/include/gdb_machdep.h Thu Aug 22 00:35:17 2019 (r351369) @@ -31,9 +31,10 @@ #ifndef _MACHINE_GDB_MACHDEP_H_ #define _MACHINE_GDB_MACHDEP_H_ -#define GDB_BUFSZ (GDB_NREGS * 16) +#define GDB_BUFSZ 4096 #define GDB_NREGS 56 #define GDB_REG_PC 16 +_Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs"); static __inline size_t gdb_cpu_regsz(int regnum)