gdbserver/netbsd-low.h

   1 /* Copyright (C) 2020-2023 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef GDBSERVER_NETBSD_LOW_H
  19 #define GDBSERVER_NETBSD_LOW_H
  20
  21 struct regcache;
  22 struct target_desc;
  23
  24 /*  Some information relative to a given register set.   */
  25
  26 struct netbsd_regset_info
  27 {
  28   /* The ptrace request needed to get/set registers of this set.  */
  29   int get_request, set_request;
  30   /* The size of the register set.  */
  31   int size;
  32   /* Fill the buffer BUF from the contents of the given REGCACHE.  */
  33   void (*fill_function) (struct regcache *regcache, char *buf);
  34   /* Store the register value in BUF in the given REGCACHE.  */
  35   void (*store_function) (struct regcache *regcache, const char *buf);
  36 };
  37
  38 /* Target ops definitions for a NetBSD target.  */
  39
  40 class netbsd_process_target : public process_stratum_target
  41 {
  42 public:
  43
  44   int create_inferior (const char *program,
  45                        const std::vector<char *> &program_args) override;
  46
  47   void post_create_inferior () override;
  48
  49   int attach (unsigned long pid) override;
  50
  51   int kill (process_info *proc) override;
  52
  53   int detach (process_info *proc) override;
  54
  55   void mourn (process_info *proc) override;
  56
  57   void join (int pid) override;
  58
  59   bool thread_alive (ptid_t pid) override;
  60
  61   void resume (thread_resume *resume_info, size_t n) override;
  62
  63   ptid_t wait (ptid_t ptid, target_waitstatus *status,
  64                target_wait_flags options) override;
  65
  66   void fetch_registers (regcache *regcache, int regno) override;
  67
  68   void store_registers (regcache *regcache, int regno) override;
  69
  70   int read_memory (CORE_ADDR memaddr, unsigned char *myaddr,
  71                    int len) override;
  72
  73   int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
  74                     int len) override;
  75
  76   void request_interrupt () override;
  77
  78   bool supports_read_auxv () override;
  79
  80   int read_auxv (CORE_ADDR offset, unsigned char *myaddr,
  81                  unsigned int len) override;
  82
  83   bool supports_hardware_single_step () override;
  84
  85   const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override;
  86
  87   bool supports_z_point_type (char z_type) override;
  88
  89   int insert_point (enum raw_bkpt_type type, CORE_ADDR addr,
  90                     int size, struct raw_breakpoint *bp) override;
  91
  92   int remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
  93                     int size, struct raw_breakpoint *bp) override;
  94
  95   bool stopped_by_sw_breakpoint () override;
  96
  97   bool supports_qxfer_siginfo () override;
  98
  99   int qxfer_siginfo (const char *annex, unsigned char *readbuf,
 100                      unsigned const char *writebuf, CORE_ADDR offset,
 101                      int len) override;
 102
 103   bool supports_stopped_by_sw_breakpoint () override;
 104
 105   bool supports_non_stop () override;
 106
 107   bool supports_multi_process () override;
 108
 109   bool supports_fork_events () override;
 110
 111   bool supports_vfork_events () override;
 112
 113   bool supports_exec_events () override;
 114
 115   bool supports_disable_randomization () override;
 116
 117   bool supports_qxfer_libraries_svr4 () override;
 118
 119   int qxfer_libraries_svr4 (const char*, unsigned char*, const unsigned char*,
 120                             CORE_ADDR, int) override;
 121
 122   bool supports_pid_to_exec_file () override;
 123
 124   const char *pid_to_exec_file (int pid) override;
 125
 126   const char *thread_name (ptid_t thread) override;
 127
 128   bool supports_catch_syscall () override;
 129
 130 protected:
 131   /* The architecture-specific "low" methods are listed below.  */
 132
 133   /* Return the information to access registers.  */
 134   virtual const netbsd_regset_info *get_regs_info () = 0;
 135
 136   /* Architecture-specific setup for the current process.  */
 137   virtual void low_arch_setup () = 0;
 138 };
 139
 140 extern netbsd_process_target *the_netbsd_target;
 141
 142 #endif /* GDBSERVER_NETBSD_LOW_H */