1 /* Native-dependent code for GNU/Linux x86 (i386 and x86-64). 2 3 Copyright (C) 1999-2023 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 /* Add the description reader. */ 33 const struct target_desc *read_description () override; 34 35 struct btrace_target_info *enable_btrace (thread_info *tp, 36 const struct btrace_config *conf) override; 37 void disable_btrace (struct btrace_target_info *tinfo) override; 38 void teardown_btrace (struct btrace_target_info *tinfo) override; 39 enum btrace_error read_btrace (struct btrace_data *data, 40 struct btrace_target_info *btinfo, 41 enum btrace_read_type type) override; 42 const struct btrace_config *btrace_conf (const struct btrace_target_info *) override; 43 44 /* These two are rewired to low_ versions. linux-nat.c queries 45 stopped-by-watchpoint info as soon as an lwp stops (via the low_ 46 methods) and caches the result, to be returned via the normal 47 non-low methods. */ 48 bool stopped_by_watchpoint () override 49 { return linux_nat_target::stopped_by_watchpoint (); } 50 51 bool stopped_data_address (CORE_ADDR *addr_p) override 52 { return linux_nat_target::stopped_data_address (addr_p); } 53 54 bool low_stopped_by_watchpoint () override 55 { return x86_nat_target::stopped_by_watchpoint (); } 56 57 bool low_stopped_data_address (CORE_ADDR *addr_p) override 58 { return x86_nat_target::stopped_data_address (addr_p); } 59 60 void low_new_fork (struct lwp_info *parent, pid_t child_pid) override; 61 62 void low_forget_process (pid_t pid) override 63 { x86_forget_process (pid); } 64 65 void low_prepare_to_resume (struct lwp_info *lwp) override 66 { x86_linux_prepare_to_resume (lwp); } 67 68 void low_new_thread (struct lwp_info *lwp) override 69 { x86_linux_new_thread (lwp); } 70 71 void low_delete_thread (struct arch_lwp_info *lwp) override 72 { x86_linux_delete_thread (lwp); } 73 74 protected: 75 /* Override the GNU/Linux inferior startup hook. */ 76 void post_startup_inferior (ptid_t) override; 77 }; 78 79 80 81 /* Helper for ps_get_thread_area. Sets BASE_ADDR to a pointer to 82 the thread local storage (or its descriptor) and returns PS_OK 83 on success. Returns PS_ERR on failure. */ 84 85 extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr, 86 unsigned int *base_addr); 87 88 #endif 89