forked from auracaster/openocd
0819541366
1. Add get_thread_reg() to rtos. It's used in rtos_get_gdb_reg() to read the value of a single register, instead of reading all register values by calling get_thread_reg_list(). 2. Add set_reg() to rtos. gdb_server uses this to change a single register value for a specific thread. 3. Add target_get_gdb_reg_list_noread() so it's possible for gdb to get a list of registers without attempting to read their contents. The clang static checker doesn't find any new problems with this change. Change-Id: I77f792d1238cb015b91527ca8cb99593ccc8870e Signed-off-by: Tim Newsome <tim@sifive.com> Reviewed-on: http://openocd.zylin.com/5114 Tested-by: jenkins Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
132 lines
4.9 KiB
C
132 lines
4.9 KiB
C
/***************************************************************************
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* Copyright (C) 2011 by Broadcom Corporation *
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* Evan Hunter - ehunter@broadcom.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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#ifndef OPENOCD_RTOS_RTOS_H
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#define OPENOCD_RTOS_RTOS_H
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#include "server/server.h"
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#include "target/target.h"
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#include <jim-nvp.h>
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typedef int64_t threadid_t;
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typedef int64_t symbol_address_t;
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struct reg;
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/**
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* Table should be terminated by an element with NULL in symbol_name
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*/
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typedef struct symbol_table_elem_struct {
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const char *symbol_name;
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symbol_address_t address;
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bool optional;
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} symbol_table_elem_t;
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struct thread_detail {
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threadid_t threadid;
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bool exists;
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char *thread_name_str;
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char *extra_info_str;
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};
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struct rtos {
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const struct rtos_type *type;
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symbol_table_elem_t *symbols;
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struct target *target;
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/* add a context variable instead of global variable */
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/* The thread currently selected by gdb. */
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int64_t current_threadid;
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/* The currently selected thread according to the target. */
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threadid_t current_thread;
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struct thread_detail *thread_details;
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int thread_count;
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int (*gdb_thread_packet)(struct connection *connection, char const *packet, int packet_size);
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int (*gdb_target_for_threadid)(struct connection *connection, int64_t thread_id, struct target **p_target);
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void *rtos_specific_params;
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};
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struct rtos_reg {
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uint32_t number;
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uint32_t size;
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uint8_t value[16];
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};
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struct rtos_type {
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const char *name;
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bool (*detect_rtos)(struct target *target);
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int (*create)(struct target *target);
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int (*smp_init)(struct target *target);
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int (*update_threads)(struct rtos *rtos);
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/** Return a list of general registers, with their values filled out. */
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int (*get_thread_reg_list)(struct rtos *rtos, int64_t thread_id,
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struct rtos_reg **reg_list, int *num_regs);
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int (*get_thread_reg)(struct rtos *rtos, int64_t thread_id,
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uint32_t reg_num, struct rtos_reg *reg);
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int (*get_symbol_list_to_lookup)(symbol_table_elem_t *symbol_list[]);
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int (*clean)(struct target *target);
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char * (*ps_command)(struct target *target);
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int (*set_reg)(struct rtos *rtos, uint32_t reg_num, uint8_t *reg_value);
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};
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struct stack_register_offset {
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unsigned short number; /* register number */
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signed short offset; /* offset in bytes from stack head, or -1 to indicate
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* register is not stacked, or -2 to indicate this is the
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* stack pointer register */
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unsigned short width_bits;
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};
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struct rtos_register_stacking {
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unsigned char stack_registers_size;
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signed char stack_growth_direction;
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unsigned char num_output_registers;
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/* Some targets require evaluating the stack to determine the
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* actual stack pointer for a process. If this field is NULL,
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* just use stacking->stack_registers_size * stack_growth_direction
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* to calculate adjustment.
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*/
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int64_t (*calculate_process_stack)(struct target *target,
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const uint8_t *stack_data,
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const struct rtos_register_stacking *stacking,
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int64_t stack_ptr);
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const struct stack_register_offset *register_offsets;
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};
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#define GDB_THREAD_PACKET_NOT_CONSUMED (-40)
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int rtos_create(Jim_GetOptInfo *goi, struct target *target);
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int rtos_set_reg(struct connection *connection, int reg_num,
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uint8_t *reg_value);
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int rtos_generic_stack_read(struct target *target,
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const struct rtos_register_stacking *stacking,
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int64_t stack_ptr,
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struct rtos_reg **reg_list,
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int *num_regs);
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int rtos_try_next(struct target *target);
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int gdb_thread_packet(struct connection *connection, char const *packet, int packet_size);
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int rtos_get_gdb_reg(struct connection *connection, int reg_num);
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int rtos_get_gdb_reg_list(struct connection *connection);
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int rtos_update_threads(struct target *target);
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void rtos_free_threadlist(struct rtos *rtos);
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int rtos_smp_init(struct target *target);
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/* function for handling symbol access */
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int rtos_qsymbol(struct connection *connection, char const *packet, int packet_size);
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#endif /* OPENOCD_RTOS_RTOS_H */
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