From patchwork Mon Feb 17 16:57:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tankut Baris Aktemur X-Patchwork-Id: 38177 Received: (qmail 123025 invoked by alias); 17 Feb 2020 17:01:47 -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 121502 invoked by uid 89); 17 Feb 2020 17:01:27 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-25.5 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3 autolearn=ham version=3.3.1 spammy= X-HELO: mga14.intel.com Received: from mga14.intel.com (HELO mga14.intel.com) (192.55.52.115) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 17 Feb 2020 17:00:51 +0000 Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Feb 2020 08:59:27 -0800 Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga007.jf.intel.com with ESMTP; 17 Feb 2020 08:59:26 -0800 Received: from ulvlx001.iul.intel.com (ulvlx001.iul.intel.com [172.28.207.17]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 01HGxPBL028255; Mon, 17 Feb 2020 16:59:25 GMT Received: from ulvlx001.iul.intel.com (localhost [127.0.0.1]) by ulvlx001.iul.intel.com with ESMTP id 01HGxPSq027242; Mon, 17 Feb 2020 17:59:25 +0100 Received: (from taktemur@localhost) by ulvlx001.iul.intel.com with LOCAL id 01HGxPbw027238; Mon, 17 Feb 2020 17:59:25 +0100 From: Tankut Baris Aktemur To: gdb-patches@sourceware.org Cc: palves@redhat.com Subject: [PATCH v2 35/58] gdbserver: turn target op 'read_loadmap' into a method Date: Mon, 17 Feb 2020 17:57:43 +0100 Message-Id: <1d0ce656b16a285195c0363de62bdd9949fd076c.1581956647.git.tankut.baris.aktemur@intel.com> In-Reply-To: References: In-Reply-To: References: X-IsSubscribed: yes gdbserver/ChangeLog: 2020-02-10 Tankut Baris Aktemur Turn process_stratum_target's read_loadmap op into a method of process_target. * target.h (struct process_stratum_target): Remove the target op. (class process_target): Add the target op. Also add 'supports_read_loadmap'. * target.cc (process_target::read_loadmap): Define. (process_target::supports_read_loadmap): Define. Update the derived classes and callers below. * server.cc (handle_qxfer_fdpic): Update. (handle_query): Update. * linux-low.cc (linux_target_ops): Update. (linux_process_target::supports_read_loadmap): Define. (linux_read_loadmap): Turn into ... (linux_process_target::read_loadmap): ... this. * linux-low.h (class linux_process_target): Update. * lynx-low.cc (lynx_target_ops): Update. * nto-low.cc (nto_target_ops): Update. * win32-low.cc (win32_target_ops): Update. --- gdbserver/linux-low.cc | 15 +++++++++------ gdbserver/linux-low.h | 7 +++++++ gdbserver/lynx-low.cc | 1 - gdbserver/nto-low.cc | 1 - gdbserver/server.cc | 6 +++--- gdbserver/target.cc | 13 +++++++++++++ gdbserver/target.h | 11 +++++++---- gdbserver/win32-low.cc | 1 - 8 files changed, 39 insertions(+), 16 deletions(-) diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc index 8ddaf64c103..6dd13129618 100644 --- a/gdbserver/linux-low.cc +++ b/gdbserver/linux-low.cc @@ -6479,9 +6479,15 @@ struct target_loadmap # define LINUX_LOADMAP_INTERP PTRACE_GETFDPIC_INTERP # endif -static int -linux_read_loadmap (const char *annex, CORE_ADDR offset, - unsigned char *myaddr, unsigned int len) +bool +linux_process_target::supports_read_loadmap () +{ + return true; +} + +int +linux_process_target::read_loadmap (const char *annex, CORE_ADDR offset, + unsigned char *myaddr, unsigned int len) { int pid = lwpid_of (current_thread); int addr = -1; @@ -6511,8 +6517,6 @@ linux_read_loadmap (const char *annex, CORE_ADDR offset, memcpy (myaddr, (char *) data + offset, copy_length); return copy_length; } -#else -# define linux_read_loadmap NULL #endif /* defined PT_GETDSBT || defined PTRACE_GETFDPIC */ static void @@ -7441,7 +7445,6 @@ linux_get_hwcap2 (int wordsize) static linux_process_target the_linux_target; static process_stratum_target linux_target_ops = { - linux_read_loadmap, linux_process_qsupported, linux_supports_tracepoints, linux_read_pc, diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h index 1d89ebd7a2d..9f4fdab33d5 100644 --- a/gdbserver/linux-low.h +++ b/gdbserver/linux-low.h @@ -377,6 +377,13 @@ public: int handle_monitor_command (char *mon) override; int core_of_thread (ptid_t ptid) override; + +#if defined PT_GETDSBT || defined PTRACE_GETFDPIC + bool supports_read_loadmap () override; + + int read_loadmap (const char *annex, CORE_ADDR offset, + unsigned char *myaddr, unsigned int len) override; +#endif }; #define get_thread_lwp(thr) ((struct lwp_info *) (thread_target_data (thr))) diff --git a/gdbserver/lynx-low.cc b/gdbserver/lynx-low.cc index 2e177594c3a..b384d20a37b 100644 --- a/gdbserver/lynx-low.cc +++ b/gdbserver/lynx-low.cc @@ -735,7 +735,6 @@ static lynx_process_target the_lynx_target; /* The LynxOS target_ops vector. */ static process_stratum_target lynx_target_ops = { - NULL, /* read_loadmap */ NULL, /* process_qsupported */ NULL, /* supports_tracepoints */ NULL, /* read_pc */ diff --git a/gdbserver/nto-low.cc b/gdbserver/nto-low.cc index 9a708712905..70d218cb924 100644 --- a/gdbserver/nto-low.cc +++ b/gdbserver/nto-low.cc @@ -947,7 +947,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size) static nto_process_target the_nto_target; static process_stratum_target nto_target_ops = { - NULL, /* read_loadmap */ NULL, /* process_qsupported */ NULL, /* supports_tracepoints */ NULL, /* read_pc */ diff --git a/gdbserver/server.cc b/gdbserver/server.cc index f9817881d77..df307f5594c 100644 --- a/gdbserver/server.cc +++ b/gdbserver/server.cc @@ -1792,13 +1792,13 @@ static int handle_qxfer_fdpic (const char *annex, gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST offset, LONGEST len) { - if (the_target->read_loadmap == NULL) + if (!the_target->pt->supports_read_loadmap ()) return -2; if (current_thread == NULL) return -1; - return (*the_target->read_loadmap) (annex, offset, readbuf, len); + return the_target->pt->read_loadmap (annex, offset, readbuf, len); } /* Handle qXfer:btrace:read. */ @@ -2380,7 +2380,7 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p) if (the_target->pt->supports_qxfer_siginfo ()) strcat (own_buf, ";qXfer:siginfo:read+;qXfer:siginfo:write+"); - if (the_target->read_loadmap != NULL) + if (the_target->pt->supports_read_loadmap ()) strcat (own_buf, ";qXfer:fdpic:read+"); /* We always report qXfer:features:read, as targets may diff --git a/gdbserver/target.cc b/gdbserver/target.cc index e1c802d65bc..26b9d8b6afe 100644 --- a/gdbserver/target.cc +++ b/gdbserver/target.cc @@ -589,3 +589,16 @@ process_target::core_of_thread (ptid_t ptid) { return -1; } + +bool +process_target::supports_read_loadmap () +{ + return false; +} + +int +process_target::read_loadmap (const char *annex, CORE_ADDR offset, + unsigned char *myaddr, unsigned int len) +{ + gdb_assert_not_reached ("target op read_loadmap not supported"); +} diff --git a/gdbserver/target.h b/gdbserver/target.h index 96d986a09ab..f69bd9d0e01 100644 --- a/gdbserver/target.h +++ b/gdbserver/target.h @@ -70,10 +70,6 @@ class process_target; shared code. */ struct process_stratum_target { - /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */ - int (*read_loadmap) (const char *annex, CORE_ADDR offset, - unsigned char *myaddr, unsigned int len); - /* Target specific qSupported support. FEATURES is an array of features with COUNT elements. */ void (*process_qsupported) (char **features, int count); @@ -486,6 +482,13 @@ public: /* Returns the core given a thread, or -1 if not known. */ virtual int core_of_thread (ptid_t ptid); + + /* Returns true if the read_loadmap target op is supported. */ + virtual bool supports_read_loadmap (); + + /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */ + virtual int read_loadmap (const char *annex, CORE_ADDR offset, + unsigned char *myaddr, unsigned int len); }; extern process_stratum_target *the_target; diff --git a/gdbserver/win32-low.cc b/gdbserver/win32-low.cc index c0b73268238..9fc882523b0 100644 --- a/gdbserver/win32-low.cc +++ b/gdbserver/win32-low.cc @@ -1852,7 +1852,6 @@ win32_sw_breakpoint_from_kind (int kind, int *size) static win32_process_target the_win32_target; static process_stratum_target win32_target_ops = { - NULL, /* read_loadmap */ NULL, /* process_qsupported */ NULL, /* supports_tracepoints */ NULL, /* read_pc */