1 /* Native-dependent code for GNU/Linux x86 (i386 and x86-64). 2 3 Copyright (C) 1999-2020 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #ifndef X86_LINUX_NAT_H 21 #define X86_LINUX_NAT_H 1 22 23 #include "gdb_proc_service.h" /* For ps_err_e. */ 24 #include "linux-nat.h" 25 #include "x86-nat.h" 26 #include "nat/x86-linux.h" 27 28 struct x86_linux_nat_target : public x86_nat_target<linux_nat_target> 29 { 30 virtual ~x86_linux_nat_target () override = 0; 31 32 /* Override the GNU/Linux inferior startup hook. */ 33 void post_startup_inferior (ptid_t) override; 34 35 /* Add the description reader. */ 36 const struct target_desc *read_description () override; 37 38 struct btrace_target_info *enable_btrace (ptid_t ptid, 39 const struct btrace_config *conf) override; 40 void disable_btrace (struct btrace_target_info *tinfo) override; 41 void teardown_btrace (struct btrace_target_info *tinfo) override; 42 enum btrace_error read_btrace (struct btrace_data *data, 43 struct btrace_target_info *btinfo, 44 enum btrace_read_type type) override; 45 const struct btrace_config *btrace_conf (const struct btrace_target_info *) override; 46 47 /* These two are rewired to low_ versions. linux-nat.c queries 48 stopped-by-watchpoint info as soon as an lwp stops (via the low_ 49 methods) and caches the result, to be returned via the normal 50 non-low methods. */ 51 bool stopped_by_watchpoint () override 52 { return linux_nat_target::stopped_by_watchpoint (); } 53 54 bool stopped_data_address (CORE_ADDR *addr_p) override 55 { return linux_nat_target::stopped_data_address (addr_p); } 56 57 bool low_stopped_by_watchpoint () override 58 { return x86_nat_target::stopped_by_watchpoint (); } 59 60 bool low_stopped_data_address (CORE_ADDR *addr_p) override 61 { return x86_nat_target::stopped_data_address (addr_p); } 62 63 void low_new_fork (struct lwp_info *parent, pid_t child_pid) override; 64 65 void low_forget_process (pid_t pid) override 66 { x86_forget_process (pid); } 67 68 void low_prepare_to_resume (struct lwp_info *lwp) override 69 { x86_linux_prepare_to_resume (lwp); } 70 71 void low_new_thread (struct lwp_info *lwp) override 72 { x86_linux_new_thread (lwp); } 73 74 void low_delete_thread (struct arch_lwp_info *lwp) override 75 { x86_linux_delete_thread (lwp); } 76 }; 77 78 79 80 /* Helper for ps_get_thread_area. Sets BASE_ADDR to a pointer to 81 the thread local storage (or its descriptor) and returns PS_OK 82 on success. Returns PS_ERR on failure. */ 83 84 extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr, 85 unsigned int *base_addr); 86 87 #endif 88