| 1 | /* Native-dependent code for FreeBSD. |
| 2 | |
| 3 | Copyright (C) 2004-2021 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 FBSD_NAT_H |
| 21 | #define FBSD_NAT_H |
| 22 | |
| 23 | #include "inf-ptrace.h" |
| 24 | #include <osreldate.h> |
| 25 | #include <sys/proc.h> |
| 26 | |
| 27 | /* FreeBSD kernels 11.3 and later report valid si_code values for |
| 28 | SIGTRAP on all architectures. Older FreeBSD kernels that supported |
| 29 | TRAP_BRKPT did not report valid values for MIPS and sparc64. Even |
| 30 | older kernels without TRAP_BRKPT support did not report valid |
| 31 | values on any architecture. */ |
| 32 | #if (__FreeBSD_kernel_version >= 1102502) || (__FreeBSD_version >= 1102502) |
| 33 | # define USE_SIGTRAP_SIGINFO |
| 34 | #elif defined(TRAP_BRKPT) |
| 35 | # if !defined(__mips__) && !defined(__sparc64__) |
| 36 | # define USE_SIGTRAP_SIGINFO |
| 37 | # endif |
| 38 | #endif |
| 39 | |
| 40 | /* A prototype FreeBSD target. */ |
| 41 | |
| 42 | class fbsd_nat_target : public inf_ptrace_target |
| 43 | { |
| 44 | public: |
| 45 | char *pid_to_exec_file (int pid) override; |
| 46 | |
| 47 | int find_memory_regions (find_memory_region_ftype func, void *data) override; |
| 48 | |
| 49 | bool info_proc (const char *, enum info_proc_what) override; |
| 50 | |
| 51 | enum target_xfer_status xfer_partial (enum target_object object, |
| 52 | const char *annex, |
| 53 | gdb_byte *readbuf, |
| 54 | const gdb_byte *writebuf, |
| 55 | ULONGEST offset, ULONGEST len, |
| 56 | ULONGEST *xfered_len) override; |
| 57 | |
| 58 | bool thread_alive (ptid_t ptid) override; |
| 59 | std::string pid_to_str (ptid_t) override; |
| 60 | |
| 61 | #ifdef HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME |
| 62 | const char *thread_name (struct thread_info *) override; |
| 63 | #endif |
| 64 | |
| 65 | void update_thread_list () override; |
| 66 | |
| 67 | thread_control_capabilities get_thread_control_capabilities () override |
| 68 | { return tc_schedlock; } |
| 69 | |
| 70 | void create_inferior (const char *, const std::string &, |
| 71 | char **, int) override; |
| 72 | |
| 73 | void resume (ptid_t, int, enum gdb_signal) override; |
| 74 | |
| 75 | ptid_t wait (ptid_t, struct target_waitstatus *, target_wait_flags) override; |
| 76 | |
| 77 | void post_startup_inferior (ptid_t) override; |
| 78 | void post_attach (int) override; |
| 79 | |
| 80 | #ifdef USE_SIGTRAP_SIGINFO |
| 81 | bool supports_stopped_by_sw_breakpoint () override; |
| 82 | bool stopped_by_sw_breakpoint () override; |
| 83 | #endif |
| 84 | |
| 85 | #ifdef TDP_RFPPWAIT |
| 86 | void follow_fork (bool, bool) override; |
| 87 | |
| 88 | int insert_fork_catchpoint (int) override; |
| 89 | int remove_fork_catchpoint (int) override; |
| 90 | |
| 91 | int insert_vfork_catchpoint (int) override; |
| 92 | int remove_vfork_catchpoint (int) override; |
| 93 | #endif |
| 94 | |
| 95 | int insert_exec_catchpoint (int) override; |
| 96 | int remove_exec_catchpoint (int) override; |
| 97 | |
| 98 | #ifdef HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE |
| 99 | int set_syscall_catchpoint (int, bool, int, gdb::array_view<const int>) |
| 100 | override; |
| 101 | #endif |
| 102 | |
| 103 | bool supports_multi_process () override; |
| 104 | |
| 105 | bool supports_disable_randomization () override; |
| 106 | }; |
| 107 | |
| 108 | #endif /* fbsd-nat.h */ |