src/rtos/rtos.h

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Broadcom Corporation                            *
   3  *   Evan Hunter - ehunter@broadcom.com                                    *
   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 2 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
  19 #ifndef RTOS_H
  20 #define RTOS_H
  21
  22 #include "server/server.h"
  23 #include <jim-nvp.h>
  24
  25 typedef int64_t threadid_t;
  26 typedef int64_t symbol_address_t;
  27
  28 struct reg;
  29
  30 /**
  31  * Table should be terminated by an element with NULL in symbol_name
  32  */
  33 typedef struct symbol_table_elem_struct {
  34         const char *symbol_name;
  35         symbol_address_t address;
  36         bool optional;
  37 } symbol_table_elem_t;
  38
  39 struct thread_detail {
  40         threadid_t threadid;
  41         bool exists;
  42         char *display_str;
  43         char *thread_name_str;
  44         char *extra_info_str;
  45 };
  46
  47 struct rtos {
  48         const struct rtos_type *type;
  49
  50         symbol_table_elem_t *symbols;
  51         struct target *target;
  52         /*  add a context variable instead of global variable */
  53         int64_t current_threadid;
  54         threadid_t current_thread;
  55         struct thread_detail *thread_details;
  56         int thread_count;
  57         int (*gdb_thread_packet)(struct connection *connection, char const *packet, int packet_size);
  58         void *rtos_specific_params;
  59 };
  60
  61 struct rtos_type {
  62         const char *name;
  63         int (*detect_rtos)(struct target *target);
  64         int (*create)(struct target *target);
  65         int (*smp_init)(struct target *target);
  66         int (*update_threads)(struct rtos *rtos);
  67         int (*get_thread_reg_list)(struct rtos *rtos, int64_t thread_id, char **hex_reg_list);
  68         int (*get_symbol_list_to_lookup)(symbol_table_elem_t *symbol_list[]);
  69         int (*clean)(struct target *target);
  70         char * (*ps_command)(struct target *target);
  71 };
  72
  73 struct stack_register_offset {
  74         signed short offset;            /* offset in bytes from stack head, or -1 to indicate
  75                                          * register is not stacked, or -2 to indicate this is the
  76                                          * stack pointer register */
  77         unsigned short width_bits;
  78 };
  79
  80 struct rtos_register_stacking {
  81         unsigned char stack_registers_size;
  82         signed char stack_growth_direction;
  83         unsigned char num_output_registers;
  84         /* Some targets require evaluating the stack to determine the
  85          * actual stack pointer for a process.  If this field is NULL,
  86          * just use stacking->stack_registers_size * stack_growth_direction
  87          * to calculate adjustment.
  88          */
  89         int64_t (*calculate_process_stack)(struct target *target,
  90                 const uint8_t *stack_data,
  91                 const struct rtos_register_stacking *stacking,
  92                 int64_t stack_ptr);
  93         const struct stack_register_offset *register_offsets;
  94 };
  95
  96 #define GDB_THREAD_PACKET_NOT_CONSUMED (-40)
  97
  98 int rtos_create(Jim_GetOptInfo *goi, struct target *target);
  99 int rtos_generic_stack_read(struct target *target,
 100                 const struct rtos_register_stacking *stacking,
 101                 int64_t stack_ptr,
 102                 char **hex_reg_list);
 103 int rtos_try_next(struct target *target);
 104 int gdb_thread_packet(struct connection *connection, char const *packet, int packet_size);
 105 int rtos_get_gdb_reg_list(struct connection *connection);
 106 int rtos_update_threads(struct target *target);
 107 void rtos_free_threadlist(struct rtos *rtos);
 108 int rtos_smp_init(struct target *target);
 109 /*  function for handling symbol access */
 110 int rtos_qsymbol(struct connection *connection, char const *packet, int packet_size);
 111
 112 #endif  /* RTOS_H */