From patchwork Mon May 26 16:36:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Arnez X-Patchwork-Id: 1161 Received: (qmail 7443 invoked by alias); 26 May 2014 16:37:04 -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 7060 invoked by uid 89); 26 May 2014 16:37:01 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.5 required=5.0 tests=AWL, BAYES_00, RP_MATCHES_RCVD autolearn=ham version=3.3.2 X-HELO: e06smtp17.uk.ibm.com Received: from e06smtp17.uk.ibm.com (HELO e06smtp17.uk.ibm.com) (195.75.94.113) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA encrypted) ESMTPS; Mon, 26 May 2014 16:36:56 +0000 Received: from /spool/local by e06smtp17.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 26 May 2014 17:36:51 +0100 Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by d06dlp01.portsmouth.uk.ibm.com (Postfix) with ESMTP id 6987B17D804E for ; Mon, 26 May 2014 17:38:05 +0100 (BST) Received: from d06av10.portsmouth.uk.ibm.com (d06av10.portsmouth.uk.ibm.com [9.149.37.251]) by b06cxnps4075.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s4QGapaA000424 for ; Mon, 26 May 2014 16:36:51 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 s4QGaoCh021375 for ; Mon, 26 May 2014 10:36:50 -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 s4QGanis021342; Mon, 26 May 2014 10:36:50 -0600 From: Andreas Arnez To: gdb-patches@sourceware.org Cc: Richard Earnshaw Subject: [PATCH 03/12] AARCH64 Linux: Fill 'collect_regset' in regset structures. Date: Mon, 26 May 2014 18:36:39 +0200 Message-Id: <1401122208-2481-4-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: 14052616-0542-0000-0000-0000092C398F X-IsSubscribed: yes In order to provide 'collect_regset' support, the generic function regcache_collect_regset is exploited. Since this requires writing appropriate register maps, these can be used for supply_regset as well. gdb/ * aarch64-linux-nat.c (fill_gregset, fill_fpregset): Replace logic by call to regcache_collect_regset. (supply_gregset, supply_fpregset): Call regcache_supply_regset instead of aarch64_linux_supply_gregset/_fpregset. * aarch64-linux-tdep.c (AARCH64_LINUX_SIZEOF_GREGSET) (AARCH64_LINUX_SIZEOF_FPREGSET): Delete macros here, move to header file instead. (aarch64_linux_supply_gregset, supply_gregset_from_core) (aarch64_linux_suply_fpregset, supply_fpregset_from_core): Delete functions. Move logic to ... (aarch64_linux_gregmap, aarch64_linux_fpregmap): ... these new register maps. (aarch64_linux_gregset, aarch64_linux_fpregset): Make global, refer to new register maps, replace *_regset_from_core by regcache_supply_regset, and also use regcache_collect_regset. * aarch64-linux-tdep.h: Include "regset.h". (aarch64_linux_supply_gregset, aarch64_linux_supply_fpregset): Delete prototypes. (AARCH64_LINUX_SIZEOF_GREGSET, AARCH64_LINUX_SIZEOF_FPREGSET): New macros, moved from C source file. (aarch64_linux_gregset, aarch64_linux_fpregset): New global variable declarations. --- gdb/aarch64-linux-nat.c | 38 +++++++------------- gdb/aarch64-linux-tdep.c | 90 +++++++++++++----------------------------------- gdb/aarch64-linux-tdep.h | 18 +++++++--- 3 files changed, 48 insertions(+), 98 deletions(-) diff --git a/gdb/aarch64-linux-nat.c b/gdb/aarch64-linux-nat.c index 877e702..4ae789b 100644 --- a/gdb/aarch64-linux-nat.c +++ b/gdb/aarch64-linux-nat.c @@ -616,14 +616,9 @@ void fill_gregset (const struct regcache *regcache, gdb_gregset_t *gregsetp, int regno) { - gdb_byte *gregs_buf = (gdb_byte *) gregsetp; - int i; - - for (i = AARCH64_X0_REGNUM; i <= AARCH64_CPSR_REGNUM; i++) - if (regno == -1 || regno == i) - regcache_raw_collect (regcache, i, - gregs_buf + X_REGISTER_SIZE - * (i - AARCH64_X0_REGNUM)); + regcache_collect_regset (&aarch64_linux_gregset, regcache, + regno, (gdb_byte *) gregsetp, + AARCH64_LINUX_SIZEOF_GREGSET); } /* Fill GDB's register array with the general-purpose register values @@ -632,7 +627,9 @@ fill_gregset (const struct regcache *regcache, void supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp) { - aarch64_linux_supply_gregset (regcache, (const gdb_byte *) gregsetp); + regcache_supply_regset (&aarch64_linux_gregset, regcache, -1, + (const gdb_byte *) gregsetp, + AARCH64_LINUX_SIZEOF_GREGSET); } /* Fill register REGNO (if it is a floating-point register) in @@ -643,22 +640,9 @@ void fill_fpregset (const struct regcache *regcache, gdb_fpregset_t *fpregsetp, int regno) { - gdb_byte *fpregs_buf = (gdb_byte *) fpregsetp; - int i; - - for (i = AARCH64_V0_REGNUM; i <= AARCH64_V31_REGNUM; i++) - if (regno == -1 || regno == i) - regcache_raw_collect (regcache, i, - fpregs_buf + V_REGISTER_SIZE - * (i - AARCH64_V0_REGNUM)); - - if (regno == -1 || regno == AARCH64_FPSR_REGNUM) - regcache_raw_collect (regcache, AARCH64_FPSR_REGNUM, - fpregs_buf + V_REGISTER_SIZE * 32); - - if (regno == -1 || regno == AARCH64_FPCR_REGNUM) - regcache_raw_collect (regcache, AARCH64_FPCR_REGNUM, - fpregs_buf + V_REGISTER_SIZE * 32 + 4); + regcache_collect_regset (&aarch64_linux_fpregset, regcache, + regno, (gdb_byte *) fpregsetp, + AARCH64_LINUX_SIZEOF_FPREGSET); } /* Fill GDB's register array with the floating-point register values @@ -667,7 +651,9 @@ fill_fpregset (const struct regcache *regcache, void supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp) { - aarch64_linux_supply_fpregset (regcache, (const gdb_byte *) fpregsetp); + regcache_supply_regset (&aarch64_linux_fpregset, regcache, -1, + (const gdb_byte *) fpregsetp, + AARCH64_LINUX_SIZEOF_FPREGSET); } /* Called when resuming a thread. diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c index 30ed73f..b3eaa95 100644 --- a/gdb/aarch64-linux-tdep.c +++ b/gdb/aarch64-linux-tdep.c @@ -41,16 +41,6 @@ #include "user-regs.h" #include -/* The general-purpose regset consists of 31 X registers, plus SP, PC, - and PSTATE registers, as defined in the AArch64 port of the Linux - kernel. */ -#define AARCH64_LINUX_SIZEOF_GREGSET (34 * X_REGISTER_SIZE) - -/* The fp regset consists of 32 V registers, plus FPCR and FPSR which - are 4 bytes wide each, and the whole structure is padded to 128 bit - alignment. */ -#define AARCH64_LINUX_SIZEOF_FPREGSET (33 * V_REGISTER_SIZE) - /* Signal frame handling. +------------+ ^ @@ -190,71 +180,37 @@ static const struct tramp_frame aarch64_linux_rt_sigframe = aarch64_linux_sigframe_init }; -/* Fill GDB's register array with the general-purpose register values - in the buffer pointed by GREGS_BUF. */ - -void -aarch64_linux_supply_gregset (struct regcache *regcache, - const gdb_byte *gregs_buf) -{ - int regno; - - for (regno = AARCH64_X0_REGNUM; regno <= AARCH64_CPSR_REGNUM; regno++) - regcache_raw_supply (regcache, regno, - gregs_buf + X_REGISTER_SIZE - * (regno - AARCH64_X0_REGNUM)); -} - -/* The "supply_regset" function for the general-purpose register set. */ - -static void -supply_gregset_from_core (const struct regset *regset, - struct regcache *regcache, - int regnum, const void *regbuf, size_t len) -{ - aarch64_linux_supply_gregset (regcache, (const gdb_byte *) regbuf); -} - -/* Fill GDB's register array with the floating-point register values - in the buffer pointed by FPREGS_BUF. */ +/* Register maps. */ -void -aarch64_linux_supply_fpregset (struct regcache *regcache, - const gdb_byte *fpregs_buf) -{ - int regno; - - for (regno = AARCH64_V0_REGNUM; regno <= AARCH64_V31_REGNUM; regno++) - regcache_raw_supply (regcache, regno, - fpregs_buf + V_REGISTER_SIZE - * (regno - AARCH64_V0_REGNUM)); - - regcache_raw_supply (regcache, AARCH64_FPSR_REGNUM, - fpregs_buf + V_REGISTER_SIZE * 32); - regcache_raw_supply (regcache, AARCH64_FPCR_REGNUM, - fpregs_buf + V_REGISTER_SIZE * 32 + 4); -} - -/* The "supply_regset" function for the floating-point register set. */ +static const struct regcache_map_entry aarch64_linux_gregmap[] = + { + { 31, AARCH64_X0_REGNUM }, /* x0 ... x30 */ + { 1, AARCH64_SP_REGNUM }, + { 1, AARCH64_PC_REGNUM }, + { 1, AARCH64_CPSR_REGNUM }, + { 0 } + }; -static void -supply_fpregset_from_core (const struct regset *regset, - struct regcache *regcache, - int regnum, const void *regbuf, size_t len) -{ - aarch64_linux_supply_fpregset (regcache, (const gdb_byte *) regbuf); -} +static const struct regcache_map_entry aarch64_linux_fpregmap[] = + { + { 32, AARCH64_V0_REGNUM }, /* v0 ... v31 */ + { 1, AARCH64_FPSR_REGNUM }, + { 1, AARCH64_FPCR_REGNUM }, + { 0 } + }; -/* Register set definitions. */ +/* Register set definitions. */ -static const struct regset aarch64_linux_gregset = +const struct regset aarch64_linux_gregset = { - NULL, supply_gregset_from_core, NULL + aarch64_linux_gregmap, + regcache_supply_regset, regcache_collect_regset }; -static const struct regset aarch64_linux_fpregset = +const struct regset aarch64_linux_fpregset = { - NULL, supply_fpregset_from_core, NULL + aarch64_linux_fpregmap, + regcache_supply_regset, regcache_collect_regset }; /* Implement the "regset_from_core_section" gdbarch method. */ diff --git a/gdb/aarch64-linux-tdep.h b/gdb/aarch64-linux-tdep.h index 48c7092..2e1de60 100644 --- a/gdb/aarch64-linux-tdep.h +++ b/gdb/aarch64-linux-tdep.h @@ -18,9 +18,17 @@ You should have received a copy of the GNU General Public License along with this program. If not, see . */ -struct regcache; +#include "regset.h" -extern void aarch64_linux_supply_gregset (struct regcache *regcache, - const gdb_byte *gregs_buf); -extern void aarch64_linux_supply_fpregset (struct regcache *regcache, - const gdb_byte *fpregs_buf); +/* The general-purpose regset consists of 31 X registers, plus SP, PC, + and PSTATE registers, as defined in the AArch64 port of the Linux + kernel. */ +#define AARCH64_LINUX_SIZEOF_GREGSET (34 * X_REGISTER_SIZE) + +/* The fp regset consists of 32 V registers, plus FPCR and FPSR which + are 4 bytes wide each, and the whole structure is padded to 128 bit + alignment. */ +#define AARCH64_LINUX_SIZEOF_FPREGSET (33 * V_REGISTER_SIZE) + +extern const struct regset aarch64_linux_gregset; +extern const struct regset aarch64_linux_fpregset;