From 4e2e869cb3336beb959a969e7b7c7897583ef16e Mon Sep 17 00:00:00 2001 From: Tankut Baris Aktemur Date: Mon, 17 Feb 2020 16:11:59 +0100 Subject: [PATCH] gdbserver: turn target op 'get_tib_address' into a method gdbserver/ChangeLog: 2020-02-20 Tankut Baris Aktemur Turn process_stratum_target's get_tib_address 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_get_tib_address'. * target.cc (process_target::get_tib_address): Define. (process_target::supports_get_tib_address): Define. Update the derived classes and callers below. * server.cc (handle_query): Update. * linux-low.cc (win32_target_ops): Update. * lynx-low.cc (lynx_target_ops): Update. * nto-low.cc (nto_target_ops): Update. * win32-low.cc (win32_target_ops): Update. (win32_process_target::supports_get_tib_address): Define. (win32_get_tib_address): Turn into ... (win32_process_target::get_tib_address): ... this. * win32-low.h (class win32_process_target): Update. --- gdbserver/ChangeLog | 23 +++++++++++++++++++++++ gdbserver/linux-low.cc | 1 - gdbserver/lynx-low.cc | 1 - gdbserver/nto-low.cc | 1 - gdbserver/server.cc | 4 ++-- gdbserver/target.cc | 12 ++++++++++++ gdbserver/target.h | 9 ++++++--- gdbserver/win32-low.cc | 11 ++++++++--- gdbserver/win32-low.h | 4 ++++ 9 files changed, 55 insertions(+), 11 deletions(-) diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog index 60244e3153f..acbc7ad85f2 100644 --- a/gdbserver/ChangeLog +++ b/gdbserver/ChangeLog @@ -1,3 +1,26 @@ +2020-02-20 Tankut Baris Aktemur + + Turn process_stratum_target's get_tib_address 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_get_tib_address'. + * target.cc (process_target::get_tib_address): Define. + (process_target::supports_get_tib_address): Define. + + Update the derived classes and callers below. + + * server.cc (handle_query): Update. + * linux-low.cc (win32_target_ops): Update. + * lynx-low.cc (lynx_target_ops): Update. + * nto-low.cc (nto_target_ops): Update. + * win32-low.cc (win32_target_ops): Update. + (win32_process_target::supports_get_tib_address): Define. + (win32_get_tib_address): Turn into ... + (win32_process_target::get_tib_address): ... this. + * win32-low.h (class win32_process_target): Update. + 2020-02-20 Tankut Baris Aktemur Turn process_stratum_target's thread_stopped op into a method of diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc index 8d5881f49ff..c7ebffdf708 100644 --- a/gdbserver/linux-low.cc +++ b/gdbserver/linux-low.cc @@ -7455,7 +7455,6 @@ linux_get_hwcap2 (int wordsize) static linux_process_target the_linux_target; static process_stratum_target linux_target_ops = { - NULL, linux_pause_all, linux_unpause_all, linux_stabilize_threads, diff --git a/gdbserver/lynx-low.cc b/gdbserver/lynx-low.cc index 7cbde7c6e79..9f96faf802c 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, /* get_tib_address */ NULL, /* pause_all */ NULL, /* unpause_all */ NULL, /* stabilize_threads */ diff --git a/gdbserver/nto-low.cc b/gdbserver/nto-low.cc index c144d774f0c..08f73fa3871 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, /* get_tib_address */ NULL, /* pause_all */ NULL, /* unpause_all */ NULL, /* stabilize_threads */ diff --git a/gdbserver/server.cc b/gdbserver/server.cc index f3dca8d3ce0..77155935fab 100644 --- a/gdbserver/server.cc +++ b/gdbserver/server.cc @@ -2532,7 +2532,7 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p) } /* Windows OS Thread Information Block address support. */ - if (the_target->get_tib_address != NULL + if (the_target->pt->supports_get_tib_address () && startswith (own_buf, "qGetTIBAddr:")) { const char *annex; @@ -2540,7 +2540,7 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p) CORE_ADDR tlb; ptid_t ptid = read_ptid (own_buf + 12, &annex); - n = (*the_target->get_tib_address) (ptid, &tlb); + n = the_target->pt->get_tib_address (ptid, &tlb); if (n == 1) { strcpy (own_buf, paddress(tlb)); diff --git a/gdbserver/target.cc b/gdbserver/target.cc index b44170a7cdd..680addadf78 100644 --- a/gdbserver/target.cc +++ b/gdbserver/target.cc @@ -638,3 +638,15 @@ process_target::thread_stopped (thread_info *thread) { gdb_assert_not_reached ("target op thread_stopped not supported"); } + +bool +process_target::supports_get_tib_address () +{ + return false; +} + +int +process_target::get_tib_address (ptid_t ptid, CORE_ADDR *address) +{ + gdb_assert_not_reached ("target op get_tib_address not supported"); +} diff --git a/gdbserver/target.h b/gdbserver/target.h index 49d5eca479e..4da15a06734 100644 --- a/gdbserver/target.h +++ b/gdbserver/target.h @@ -70,9 +70,6 @@ class process_target; shared code. */ struct process_stratum_target { - /* Read Thread Information Block address. */ - int (*get_tib_address) (ptid_t ptid, CORE_ADDR *address); - /* Pause all threads. If FREEZE, arrange for any resume attempt to be ignored until an unpause_all call unfreezes threads again. There can be nested calls to pause_all, so a freeze counter @@ -491,6 +488,12 @@ public: /* Return true if THREAD is known to be stopped now. */ virtual bool thread_stopped (thread_info *thread); + + /* Return true if the get_tib_address op is supported. */ + virtual bool supports_get_tib_address (); + + /* Read Thread Information Block address. */ + virtual int get_tib_address (ptid_t ptid, CORE_ADDR *address); }; extern process_stratum_target *the_target; diff --git a/gdbserver/win32-low.cc b/gdbserver/win32-low.cc index 712624852d6..9bffdaaf1ae 100644 --- a/gdbserver/win32-low.cc +++ b/gdbserver/win32-low.cc @@ -1824,10 +1824,16 @@ win32_process_target::qxfer_siginfo (const char *annex, return len; } +bool +win32_process_target::supports_get_tib_address () +{ + return true; +} + /* Write Windows OS Thread Information Block address. */ -static int -win32_get_tib_address (ptid_t ptid, CORE_ADDR *addr) +int +win32_process_target::get_tib_address (ptid_t ptid, CORE_ADDR *addr) { win32_thread_info *th; th = thread_rec (ptid, 0); @@ -1852,7 +1858,6 @@ win32_sw_breakpoint_from_kind (int kind, int *size) static win32_process_target the_win32_target; static process_stratum_target win32_target_ops = { - win32_get_tib_address, NULL, /* pause_all */ NULL, /* unpause_all */ NULL, /* stabilize_threads */ diff --git a/gdbserver/win32-low.h b/gdbserver/win32-low.h index b259b1fbac1..1618501838e 100644 --- a/gdbserver/win32-low.h +++ b/gdbserver/win32-low.h @@ -162,6 +162,10 @@ public: int qxfer_siginfo (const char *annex, unsigned char *readbuf, unsigned const char *writebuf, CORE_ADDR offset, int len) override; + + bool supports_get_tib_address () override; + + int get_tib_address (ptid_t ptid, CORE_ADDR *addr) override; }; /* Retrieve the context for this thread, if not already retrieved. */ -- 2.30.2