From patchwork Mon May 26 16:36:48 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Arnez X-Patchwork-Id: 1162 Received: (qmail 7648 invoked by alias); 26 May 2014 16:37:05 -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 7127 invoked by uid 89); 26 May 2014 16:37:02 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.1 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, 26 May 2014 16:37:00 +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, 26 May 2014 17:36:56 +0100 Received: from d06dlp03.portsmouth.uk.ibm.com (9.149.20.15) by e06smtp16.uk.ibm.com (192.168.101.146) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Mon, 26 May 2014 17:36:54 +0100 Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by d06dlp03.portsmouth.uk.ibm.com (Postfix) with ESMTP id AA9711B08051 for ; Mon, 26 May 2014 17:37:13 +0100 (BST) Received: from d06av10.portsmouth.uk.ibm.com (d06av10.portsmouth.uk.ibm.com [9.149.37.251]) by b06cxnps3074.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s4QGasOY2425146 for ; Mon, 26 May 2014 16:36:54 GMT Received: from d06av10.portsmouth.uk.ibm.com (localhost [127.0.0.1]) by d06av10.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s4QGarWF021451 for ; Mon, 26 May 2014 10:36:53 -0600 Received: from br87z6lw.ibm.com (sig-9-78-93-212.uk.ibm.com [9.78.93.212]) by d06av10.portsmouth.uk.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id s4QGanj3021342; Mon, 26 May 2014 10:36:53 -0600 From: Andreas Arnez To: gdb-patches@sourceware.org Cc: Jeff Johnston Subject: [PATCH 12/12] IA64 Linux: Define regset structures. Date: Mon, 26 May 2014 18:36:48 +0200 Message-Id: <1401122208-2481-13-git-send-email-arnez@linux.vnet.ibm.com> In-Reply-To: <1401122208-2481-1-git-send-email-arnez@linux.vnet.ibm.com> References: <1401122208-2481-1-git-send-email-arnez@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14052616-3548-0000-0000-0000093C71C9 X-IsSubscribed: yes 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,