From patchwork Mon Apr 28 10:02:20 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Arnez X-Patchwork-Id: 719 Return-Path: X-Original-To: siddhesh@wilcox.dreamhost.com Delivered-To: siddhesh@wilcox.dreamhost.com Received: from homiemail-mx22.g.dreamhost.com (mx2.sub5.homie.mail.dreamhost.com [208.113.200.128]) by wilcox.dreamhost.com (Postfix) with ESMTP id 49F94360075 for ; Mon, 28 Apr 2014 03:02:29 -0700 (PDT) Received: by homiemail-mx22.g.dreamhost.com (Postfix, from userid 14314964) id 06555500FD18; Mon, 28 Apr 2014 03:02:28 -0700 (PDT) X-Original-To: gdb@patchwork.siddhesh.in Delivered-To: x14314964@homiemail-mx22.g.dreamhost.com Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by homiemail-mx22.g.dreamhost.com (Postfix) with ESMTPS id D81CA500626B for ; Mon, 28 Apr 2014 03:02:28 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-type; q=dns; s=default; b=bHVH4 okO9z/7Juue5C86IhU6Ir95sHvNLor15X0mCoohyhYDAh+V4WGhZyt8Xqr1Xlc4M QGuZHN67qr26Je2aXmetfAEfm8uXjmYX8tN7yzdM0ZUPax8vDZXkJZQ0sb3TPaUU 8VorOyR9ydqOmg/O0Jc5fRtTa3x9dUC27CpJ84= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:references:date:in-reply-to :message-id:mime-version:content-type; s=default; bh=hzqcH4JWKJO SiK6YS09Y08q/v5Q=; b=n41FY+pGi6BYqiDNzIyznyTJXg/nqgInRUEoOMqvMqV zn/eCJQXeya4i7qrrwlpf+w7mcj4IEJEeRupyDpJR0T88lRcgtJUOXK/wwwhmfSi DCxRVDIquagO5B4nIkU0Pi3jo1zrGdvFFWa/BqO/+Re4SF9Vl+Ts/WPVKUClTZkw = Received: (qmail 19547 invoked by alias); 28 Apr 2014 10:02:27 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 19535 invoked by uid 89); 28 Apr 2014 10:02:27 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.3 required=5.0 tests=AWL, BAYES_00, RP_MATCHES_RCVD, UNWANTED_LANGUAGE_BODY autolearn=ham version=3.3.2 X-HELO: e06smtp16.uk.ibm.com Received: from e06smtp16.uk.ibm.com (HELO e06smtp16.uk.ibm.com) (195.75.94.112) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA encrypted) ESMTPS; Mon, 28 Apr 2014 10:02:26 +0000 Received: from /spool/local by e06smtp16.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 28 Apr 2014 11:02:23 +0100 Received: from d06dlp02.portsmouth.uk.ibm.com (9.149.20.14) by e06smtp16.uk.ibm.com (192.168.101.146) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Mon, 28 Apr 2014 11:02:22 +0100 Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by d06dlp02.portsmouth.uk.ibm.com (Postfix) with ESMTP id E75B92190046 for ; Mon, 28 Apr 2014 11:02:13 +0100 (BST) Received: from d06av05.portsmouth.uk.ibm.com (d06av05.portsmouth.uk.ibm.com [9.149.37.229]) by b06cxnps4075.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s3SA2LPQ42205392 for ; Mon, 28 Apr 2014 10:02:21 GMT Received: from d06av05.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s3SA2LMB025211 for ; Mon, 28 Apr 2014 04:02:21 -0600 Received: from br87z6lw.de.ibm.com (dyn-9-152-212-188.boeblingen.de.ibm.com [9.152.212.188]) by d06av05.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id s3SA2KOl025199; Mon, 28 Apr 2014 04:02:21 -0600 From: Andreas Arnez To: gdb-patches@sourceware.org Cc: Jeff Johnston Subject: [RFC 23/23] IA64 Linux: Define regset structures References: <87eh0h6bkq.fsf@br87z6lw.de.ibm.com> Date: Mon, 28 Apr 2014 12:02:20 +0200 In-Reply-To: <87eh0h6bkq.fsf@br87z6lw.de.ibm.com> (Andreas Arnez's message of "Mon, 28 Apr 2014 11:35:33 +0200") Message-ID: <87k3a922mr.fsf@br87z6lw.de.ibm.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) MIME-Version: 1.0 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14042810-3548-0000-0000-000008E00AF6 X-IsSubscribed: yes X-DH-Original-To: gdb@patchwork.siddhesh.in gdb/ * ia64-linux-tdep.c: Include "regset.h". (ia64_linux_gregmap, ia64_linux_fpregmap): New register maps. (IA64_LINUX_GREGS_SIZE, IA64_LINUX_FPREGS_SIZE): New macros. (ia64_linux_supply_fpregset): New function. (ia64_linux_gregset, ia64_linux_fpregset): New regsets. (ia64_linux_regset_from_core_section): New function. (ia64_linux_init_abi): Set regset_from_core_section gdbarch method. --- gdb/ia64-linux-tdep.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) diff --git a/gdb/ia64-linux-tdep.c b/gdb/ia64-linux-tdep.c index 128924e..9989602 100644 --- a/gdb/ia64-linux-tdep.c +++ b/gdb/ia64-linux-tdep.c @@ -26,6 +26,7 @@ #include "solib-svr4.h" #include "symtab.h" #include "linux-tdep.h" +#include "regset.h" #include @@ -131,6 +132,88 @@ ia64_linux_stap_is_single_operand (struct gdbarch *gdbarch, const char *s) || isdigit (*s)); /* Literal number. */ } +/* Core file support. */ + +static const struct regcache_map_entry ia64_linux_gregmap[] = + { + { 32, IA64_GR0_REGNUM }, /* r0 ... r31 */ + { 8, REGCACHE_MAP_SKIP_BYTES }, /* FIXME: NAT collection bits? */ + { 1, IA64_PR_REGNUM }, + { 8, IA64_BR0_REGNUM }, /* b0 ... b7 */ + { 1, IA64_IP_REGNUM }, + { 1, IA64_CFM_REGNUM }, + { 1, IA64_PSR_REGNUM }, + { 1, IA64_RSC_REGNUM }, + { 1, IA64_BSP_REGNUM }, + { 1, IA64_BSPSTORE_REGNUM }, + { 1, IA64_RNAT_REGNUM }, + { 1, IA64_CCV_REGNUM }, + { 1, IA64_UNAT_REGNUM }, + { 1, IA64_FPSR_REGNUM }, + { 1, IA64_PFS_REGNUM }, + { 1, IA64_LC_REGNUM }, + { 1, IA64_EC_REGNUM }, + { 0 } + }; + +#define IA64_LINUX_GREGS_SIZE (55 * 8) + +static const struct regcache_map_entry ia64_linux_fpregmap[] = + { + { 128, IA64_FR0_REGNUM }, /* f0 ... f127 */ + { 0 } + }; + +#define IA64_LINUX_FPREGS_SIZE (128 * 8) + +static void +ia64_linux_supply_fpregset (const struct regset *regset, + struct regcache *regcache, + int regnum, const void *regs, size_t len) +{ + const gdb_byte f_zero[16] = { 0 }; + const gdb_byte f_one[16] = + { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0 }; + + regcache_supply_regset (regset, regcache, regnum, regs, len); + + /* Kernel generated cores have fr1==0 instead of 1.0. Older GDBs + did the same. So ignore whatever might be recorded in fpregset_t + for fr0/fr1 and always supply their expected values. */ + if (regnum == -1 || regnum == IA64_FR0_REGNUM) + regcache_raw_supply (regcache, IA64_FR0_REGNUM, f_zero); + if (regnum == -1 || regnum == IA64_FR1_REGNUM) + regcache_raw_supply (regcache, IA64_FR1_REGNUM, f_one); +} + +static const struct regset ia64_linux_gregset = + { + ia64_linux_gregmap, + regcache_supply_regset, regcache_collect_regset + }; + +static const struct regset ia64_linux_fpregset = + { + ia64_linux_fpregmap, + ia64_linux_supply_fpregset, regcache_collect_regset + }; + +static const struct regset * +ia64_linux_regset_from_core_section (struct gdbarch *gdbarch, + const char *sect_name, + size_t sect_size) +{ + if (strcmp (sect_name, ".reg") == 0 + && sect_size >= IA64_LINUX_GREGS_SIZE) + return &ia64_linux_gregset; + + if (strcmp (sect_name, ".reg2") == 0 + && sect_size >= IA64_LINUX_FPREGS_SIZE) + return &ia64_linux_fpregset; + + return NULL; +} + static void ia64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { @@ -161,6 +244,10 @@ ia64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) set_gdbarch_fetch_tls_load_module_address (gdbarch, svr4_fetch_objfile_link_map); + /* Core file support. */ + set_gdbarch_regset_from_core_section (gdbarch, + ia64_linux_regset_from_core_section); + /* SystemTap related. */ set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes); set_gdbarch_stap_register_indirection_prefixes (gdbarch,