From patchwork Tue Feb 11 09:01:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Aktemur, Tankut Baris" X-Patchwork-Id: 37903 Received: (qmail 118007 invoked by alias); 11 Feb 2020 09:03:29 -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 117685 invoked by uid 89); 11 Feb 2020 09:03:27 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-23.4 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: mga07.intel.com Received: from mga07.intel.com (HELO mga07.intel.com) (134.134.136.100) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 11 Feb 2020 09:03:21 +0000 Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Feb 2020 01:03:21 -0800 Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga008.jf.intel.com with ESMTP; 11 Feb 2020 01:03:20 -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 01B93J1X002192; Tue, 11 Feb 2020 09:03:19 GMT Received: from ulvlx001.iul.intel.com (localhost [127.0.0.1]) by ulvlx001.iul.intel.com with ESMTP id 01B93JYm010496; Tue, 11 Feb 2020 10:03:19 +0100 Received: (from taktemur@localhost) by ulvlx001.iul.intel.com with LOCAL id 01B93JfA010492; Tue, 11 Feb 2020 10:03:19 +0100 From: Tankut Baris Aktemur To: gdb-patches@sourceware.org Subject: [PATCH 22/58] gdbserver: turn target op 'supports_hardware_single_step' into a method Date: Tue, 11 Feb 2020 10:01:34 +0100 Message-Id: In-Reply-To: References: In-Reply-To: References: X-IsSubscribed: yes gdbserver/ChangeLog: 2020-02-10 Tankut Baris Aktemur Make process_stratum_target's supports_hardware_single_step op a method of process_target. * target.h (struct process_stratum_target): Remove the target op. (class process_target): Add the target op. (target_supports_hardware_single_step): Update the macro. (target_can_do_hardware_single_step): Remove declaration. * target.c (process_target::supports_hardware_single_step): Define. (target_can_do_hardware_single_step): Remove. Update the derived structs and callers below. * linux-low.h (class linux_process_target): Update. * linux-low.c (linux_target_ops): Update. (linux_supports_hardware_single_step): Turn into ... (linux_process_target::supports_hardware_single_step): ... this. * lynx-low.h (class lynx_process_target): Update. * lynx-low.c (lynx_target_ops): Update. (lynx_process_target::supports_hardware_single_step): Define. * nto-low.h (class nto_process_target): Update. * nto-low.c (nto_target_ops): Update. (nto_process_target::supports_hardware_single_step): Define. * win32-low.h (class win32_process_target): Update. * win32-low.c (win32_target_ops): Update. (win32_process_target::supports_hardware_single_step): Define. --- gdbserver/linux-low.c | 5 ++--- gdbserver/linux-low.h | 2 ++ gdbserver/lynx-low.c | 7 ++++++- gdbserver/lynx-low.h | 2 ++ gdbserver/nto-low.c | 7 ++++++- gdbserver/nto-low.h | 2 ++ gdbserver/target.c | 14 ++++++-------- gdbserver/target.h | 11 ++++------- gdbserver/win32-low.c | 7 ++++++- gdbserver/win32-low.h | 2 ++ 10 files changed, 38 insertions(+), 21 deletions(-) diff --git a/gdbserver/linux-low.c b/gdbserver/linux-low.c index 9d02e96f6f0..d43483c5e0b 100644 --- a/gdbserver/linux-low.c +++ b/gdbserver/linux-low.c @@ -6032,8 +6032,8 @@ linux_process_target::supports_stopped_by_hw_breakpoint () /* Implement the supports_hardware_single_step target_ops method. */ -static int -linux_supports_hardware_single_step (void) +bool +linux_process_target::supports_hardware_single_step () { return can_hardware_single_step (); } @@ -7376,7 +7376,6 @@ linux_get_hwcap2 (int wordsize) static linux_process_target the_linux_target; static process_stratum_target linux_target_ops = { - linux_supports_hardware_single_step, linux_stopped_by_watchpoint, linux_stopped_data_address, #if defined(__UCLIBC__) && defined(HAS_NOMMU) \ diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h index 41f99591b3e..00e563eddbe 100644 --- a/gdbserver/linux-low.h +++ b/gdbserver/linux-low.h @@ -329,6 +329,8 @@ public: bool stopped_by_hw_breakpoint () override; bool supports_stopped_by_hw_breakpoint () override; + + bool supports_hardware_single_step () override; }; #define get_thread_lwp(thr) ((struct lwp_info *) (thread_target_data (thr))) diff --git a/gdbserver/lynx-low.c b/gdbserver/lynx-low.c index 7f074445f37..23dc32c31f8 100644 --- a/gdbserver/lynx-low.c +++ b/gdbserver/lynx-low.c @@ -722,6 +722,12 @@ lynx_process_target::request_interrupt () kill (lynx_ptid_get_pid (inferior_ptid), SIGINT); } +bool +lynx_process_target::supports_hardware_single_step () +{ + return true; +} + /* The LynxOS target ops object. */ static lynx_process_target the_lynx_target; @@ -729,7 +735,6 @@ static lynx_process_target the_lynx_target; /* The LynxOS target_ops vector. */ static process_stratum_target lynx_target_ops = { - target_can_do_hardware_single_step, NULL, /* stopped_by_watchpoint */ NULL, /* stopped_data_address */ NULL, /* read_offsets */ diff --git a/gdbserver/lynx-low.h b/gdbserver/lynx-low.h index 3560c22abc1..4f542118704 100644 --- a/gdbserver/lynx-low.h +++ b/gdbserver/lynx-low.h @@ -88,6 +88,8 @@ public: int len) override; void request_interrupt () override; + + bool supports_hardware_single_step () override; }; /* The inferior's target description. This is a global because the diff --git a/gdbserver/nto-low.c b/gdbserver/nto-low.c index b7adc82da69..20db2dba3f4 100644 --- a/gdbserver/nto-low.c +++ b/gdbserver/nto-low.c @@ -869,6 +869,12 @@ nto_process_target::remove_point (enum raw_bkpt_type type, CORE_ADDR addr, return nto_breakpoint (addr, wtype, -1); } +bool +nto_process_target::supports_hardware_single_step () +{ + return true; +} + /* Check if the reason of stop for current thread (CURRENT_INFERIOR) is a watchpoint. @@ -950,7 +956,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size) static nto_process_target the_nto_target; static process_stratum_target nto_target_ops = { - target_can_do_hardware_single_step, nto_stopped_by_watchpoint, nto_stopped_data_address, NULL, /* nto_read_offsets */ diff --git a/gdbserver/nto-low.h b/gdbserver/nto-low.h index a51477789e7..7b321077607 100644 --- a/gdbserver/nto-low.h +++ b/gdbserver/nto-low.h @@ -91,6 +91,8 @@ public: int remove_point (enum raw_bkpt_type type, CORE_ADDR addr, int size, raw_breakpoint *bp) override; + + bool supports_hardware_single_step () override; }; /* The inferior's target description. This is a global because the diff --git a/gdbserver/target.c b/gdbserver/target.c index f7dc0f4d658..09b3a633fc8 100644 --- a/gdbserver/target.c +++ b/gdbserver/target.c @@ -316,14 +316,6 @@ kill_inferior (process_info *proc) return the_target->pt->kill (proc); } -/* Target can do hardware single step. */ - -int -target_can_do_hardware_single_step (void) -{ - return 1; -} - /* Default implementation for breakpoint_kind_for_pc. The default behavior for targets that don't implement breakpoint_kind_for_pc @@ -471,3 +463,9 @@ process_target::supports_stopped_by_hw_breakpoint () { return false; } + +bool +process_target::supports_hardware_single_step () +{ + return false; +} diff --git a/gdbserver/target.h b/gdbserver/target.h index aae0e3afd24..263efaf104f 100644 --- a/gdbserver/target.h +++ b/gdbserver/target.h @@ -70,9 +70,6 @@ class process_target; shared code. */ struct process_stratum_target { - /* Returns true if the target can do hardware single step. */ - int (*supports_hardware_single_step) (void); - /* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */ int (*stopped_by_watchpoint) (void); @@ -476,6 +473,9 @@ public: /* Returns true if the target knows whether a trap was caused by a HW breakpoint triggering. */ virtual bool supports_stopped_by_hw_breakpoint (); + + /* Returns true if the target can do hardware single step. */ + virtual bool supports_hardware_single_step (); }; extern process_stratum_target *the_target; @@ -668,8 +668,7 @@ target_read_btrace_conf (struct btrace_target_info *tinfo, the_target->pt->supports_stopped_by_hw_breakpoint () #define target_supports_hardware_single_step() \ - (the_target->supports_hardware_single_step ? \ - (*the_target->supports_hardware_single_step) () : 0) + the_target->pt->supports_hardware_single_step () #define target_stopped_by_hw_breakpoint() \ the_target->pt->stopped_by_hw_breakpoint () @@ -720,8 +719,6 @@ int set_desired_thread (); const char *target_pid_to_str (ptid_t); -int target_can_do_hardware_single_step (void); - int default_breakpoint_kind_from_pc (CORE_ADDR *pcptr); #endif /* GDBSERVER_TARGET_H */ diff --git a/gdbserver/win32-low.c b/gdbserver/win32-low.c index 9e8a3801099..0c4a948a37a 100644 --- a/gdbserver/win32-low.c +++ b/gdbserver/win32-low.c @@ -1718,6 +1718,12 @@ win32_process_target::request_interrupt () soft_interrupt_requested = 1; } +bool +win32_process_target::supports_hardware_single_step () +{ + return true; +} + #ifdef _WIN32_WCE int win32_error_to_fileio_error (DWORD err) @@ -1828,7 +1834,6 @@ win32_sw_breakpoint_from_kind (int kind, int *size) static win32_process_target the_win32_target; static process_stratum_target win32_target_ops = { - target_can_do_hardware_single_step, win32_stopped_by_watchpoint, win32_stopped_data_address, NULL, /* read_offsets */ diff --git a/gdbserver/win32-low.h b/gdbserver/win32-low.h index 39c4a4ce917..b13c53c4ed3 100644 --- a/gdbserver/win32-low.h +++ b/gdbserver/win32-low.h @@ -145,6 +145,8 @@ public: int remove_point (enum raw_bkpt_type type, CORE_ADDR addr, int size, raw_breakpoint *bp) override; + + bool supports_hardware_single_step () override; }; /* Retrieve the context for this thread, if not already retrieved. */