From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27144 invoked by alias); 21 Jun 2012 18:15:08 -0000 Received: (qmail 27119 invoked by uid 22791); 21 Jun 2012 18:15:05 -0000 X-SWARE-Spam-Status: No, hits=-4.2 required=5.0 tests=AWL,BAYES_00,FSL_FREEMAIL_1,KHOP_RCVD_UNTRUST,NO_DNS_FOR_FROM,RCVD_IN_DNSWL_HI,RCVD_IN_HOSTKARMA_W,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mga02.intel.com (HELO mga02.intel.com) (134.134.136.20) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 21 Jun 2012 18:14:53 +0000 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 21 Jun 2012 11:14:52 -0700 X-ExtLoop1: 1 Received: from gnu-6.sc.intel.com ([10.3.194.135]) by orsmga001.jf.intel.com with ESMTP; 21 Jun 2012 11:14:52 -0700 Received: by gnu-6.sc.intel.com (Postfix, from userid 500) id 63F2DC2029; Thu, 21 Jun 2012 11:14:52 -0700 (PDT) Date: Thu, 21 Jun 2012 18:15:00 -0000 From: "H.J. Lu" To: GDB Cc: Mark Kettenis Subject: [PATCH 1/3] Add sp_regnum_from_eax and pc_regnum_from_eax Message-ID: <20120621181452.GA23413@intel.com> Reply-To: "H.J. Lu" MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2012-06/txt/msg00664.txt.bz2 Hi, Here are the first of the last 3 patches for x32 support in GDB. This patch maps $pc to $eip and $sp to $esp for x32. OK to install? Thanks. H.J. --- * amd64-tdep.c (amd64_x32_init_abi): Set sp_regnum_from_eax to AMD64_RSP_REGNUM and pc_regnum_from_eax to AMD64_RIP_REGNUM. * i386-tdep.c (i386_gdbarch_init): Initialize sp_regnum_from_eax and pc_regnum_from_eax to -1. Update SP regnum from sp_regnum_from_eax and PC regnum from pc_regnum_from_eax if needed. * i386-tdep.h (gdbarch_tdep): Add sp_regnum_from_eax and pc_regnum_from_eax. --- gdb/amd64-tdep.c | 3 +++ gdb/i386-tdep.c | 11 +++++++++++ gdb/i386-tdep.h | 8 ++++++++ 3 files changed, 22 insertions(+), 0 deletions(-) diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c index 8ae1142..5424926 100644 --- a/gdb/amd64-tdep.c +++ b/gdb/amd64-tdep.c @@ -2946,6 +2946,9 @@ amd64_x32_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) tdesc = tdesc_x32; tdep->tdesc = tdesc; + tdep->sp_regnum_from_eax = AMD64_RSP_REGNUM; + tdep->pc_regnum_from_eax = AMD64_RIP_REGNUM; + tdep->num_dword_regs = 17; set_tdesc_pseudo_register_type (gdbarch, amd64_x32_pseudo_register_type); diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index fd5969d..6a02906 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -7805,6 +7805,9 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) tdep->num_mmx_regs = 8; tdep->num_ymm_regs = 0; + tdep->sp_regnum_from_eax = -1; + tdep->pc_regnum_from_eax = -1; + tdesc_data = tdesc_data_alloc (); set_gdbarch_relocate_instruction (gdbarch, i386_relocate_instruction); @@ -7849,6 +7852,14 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) /* Support dword pseudo-register if it hasn't been disabled. */ tdep->eax_regnum = ymm0_regnum; ymm0_regnum += tdep->num_dword_regs; + if (tdep->sp_regnum_from_eax != -1) + set_gdbarch_sp_regnum (gdbarch, + (tdep->eax_regnum + + tdep->sp_regnum_from_eax)); + if (tdep->pc_regnum_from_eax != -1) + set_gdbarch_pc_regnum (gdbarch, + (tdep->eax_regnum + + tdep->pc_regnum_from_eax)); } else tdep->eax_regnum = -1; diff --git a/gdb/i386-tdep.h b/gdb/i386-tdep.h index 5f233f5..76afdce 100644 --- a/gdb/i386-tdep.h +++ b/gdb/i386-tdep.h @@ -149,6 +149,14 @@ struct gdbarch_tdep of pseudo dword register support. */ int eax_regnum; + /* Register number for SP, relative to %eax. Set this to -1 to + indicate the absence of pseudo SP register support. */ + int sp_regnum_from_eax; + + /* Register number for PC, relative to %eax. Set this to -1 to + indicate the absence of pseudo PC register support. */ + int pc_regnum_from_eax; + /* Number of core registers. */ int num_core_regs; -- 1.7.6.5