diff options
Diffstat (limited to 'src/target')
| -rw-r--r-- | src/target/target.c | 361 |
1 files changed, 359 insertions, 2 deletions
diff --git a/src/target/target.c b/src/target/target.c index 3f75d5c6..589f626f 100644 --- a/src/target/target.c +++ b/src/target/target.c @@ -74,9 +74,11 @@ int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc); int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv); +static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv); -/* targets - */ + +/* targets */ extern target_type_t arm7tdmi_target; extern target_type_t arm720t_target; extern target_type_t arm9tdmi_target; @@ -937,6 +939,10 @@ int target_register_commands(struct command_context_s *cmd_ctx) register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>"); register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>"); + + /* script procedures */ + register_jim(cmd_ctx, "openocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing"); + register_jim(cmd_ctx, "openocd_array2mem", jim_mem2array, "convert a TCL array to memory locations and write the values"); return ERROR_OK; } @@ -2629,3 +2635,354 @@ int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char ** return ERROR_OK; } + +static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, u32 val) +{ + char *namebuf; + Jim_Obj *nameObjPtr, *valObjPtr; + int result; + + namebuf = alloc_printf("%s(%d)", varname, idx); + if (!namebuf) + return JIM_ERR; + + nameObjPtr = Jim_NewStringObj(interp, namebuf, -1); + valObjPtr = Jim_NewIntObj(interp, val); + if (!nameObjPtr || !valObjPtr) + { + free(namebuf); + return JIM_ERR; + } + + Jim_IncrRefCount(nameObjPtr); + Jim_IncrRefCount(valObjPtr); + result = Jim_SetVariable(interp, nameObjPtr, valObjPtr); + Jim_DecrRefCount(interp, nameObjPtr); + Jim_DecrRefCount(interp, valObjPtr); + free(namebuf); + /* printf("%s(%d) <= 0%08x\n", varname, idx, val); */ + return result; +} + +static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv) +{ + target_t *target; + command_context_t *context; + long l; + u32 width; + u32 len; + u32 addr; + u32 count; + u32 v; + const char *varname; + u8 buffer[4096]; + int i, n, e, retval; + + /* argv[1] = name of array to receive the data + * argv[2] = desired width + * argv[3] = memory address + * argv[4] = count of times to read + */ + if (argc != 5) { + Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems"); + return JIM_ERR; + } + varname = Jim_GetString(argv[1], &len); + /* given "foo" get space for worse case "foo(%d)" .. add 20 */ + + e = Jim_GetLong(interp, argv[2], &l); + width = l; + if (e != JIM_OK) { + return e; + } + + e = Jim_GetLong(interp, argv[3], &l); + addr = l; + if (e != JIM_OK) { + return e; + } + e = Jim_GetLong(interp, argv[4], &l); + len = l; + if (e != JIM_OK) { + return e; + } + switch (width) { + case 8: + width = 1; + break; + case 16: + width = 2; + break; + case 32: + width = 4; + break; + default: + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL ); + return JIM_ERR; + } + if (len == 0) { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL); + return JIM_ERR; + } + if ((addr + (len * width)) < addr) { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL); + return JIM_ERR; + } + /* absurd transfer size? */ + if (len > 65536) { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL); + return JIM_ERR; + } + + if ((width == 1) || + ((width == 2) && ((addr & 1) == 0)) || + ((width == 4) && ((addr & 3) == 0))) { + /* all is well */ + } else { + char buf[100]; + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + sprintf(buf, "mem2array address: 0x%08x is not aligned for %d byte reads", addr, width); + Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL); + return JIM_ERR; + } + + context = Jim_GetAssocData(interp, "context"); + if (context == NULL) + { + LOG_ERROR("mem2array: no command context"); + return JIM_ERR; + } + target = get_current_target(context); + if (target == NULL) + { + LOG_ERROR("mem2array: no current target"); + return JIM_ERR; + } + + /* Transfer loop */ + + /* index counter */ + n = 0; + /* assume ok */ + e = JIM_OK; + while (len) { + /* Slurp... in buffer size chunks */ + + count = len; /* in objects.. */ + if (count > (sizeof(buffer)/width)) { + count = (sizeof(buffer)/width); + } + + retval = target->type->read_memory( target, addr, width, count, buffer ); + if (retval != ERROR_OK) { + /* BOO !*/ + LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed", addr, width, count); + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL); + e = JIM_ERR; + len = 0; + } else { + v = 0; /* shut up gcc */ + for (i = 0 ;i < count ;i++, n++) { + switch (width) { + case 4: + v = target_buffer_get_u32(target, &buffer[i*width]); + break; + case 2: + v = target_buffer_get_u16(target, &buffer[i*width]); + break; + case 1: + v = buffer[i] & 0x0ff; + break; + } + new_int_array_element(interp, varname, n, v); + } + len -= count; + } + } + + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + + return JIM_OK; +} + +static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, u32 *val) +{ + char *namebuf; + Jim_Obj *nameObjPtr, *valObjPtr; + int result; + long l; + + namebuf = alloc_printf("%s(%d)", varname, idx); + if (!namebuf) + return JIM_ERR; + + nameObjPtr = Jim_NewStringObj(interp, namebuf, -1); + if (!nameObjPtr) + { + free(namebuf); + return JIM_ERR; + } + + Jim_IncrRefCount(nameObjPtr); + valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG); + Jim_DecrRefCount(interp, nameObjPtr); + free(namebuf); + if (valObjPtr == NULL) + return JIM_ERR; + + result = Jim_GetLong(interp, valObjPtr, &l); + /* printf("%s(%d) => 0%08x\n", varname, idx, val); */ + *val = l; + return result; +} + +static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv) +{ + target_t *target; + command_context_t *context; + long l; + u32 width; + u32 len; + u32 addr; + u32 count; + u32 v; + const char *varname; + u8 buffer[4096]; + int i, n, e, retval; + + /* argv[1] = name of array to get the data + * argv[2] = desired width + * argv[3] = memory address + * argv[4] = count to write + */ + if (argc != 5) { + Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems"); + return JIM_ERR; + } + varname = Jim_GetString(argv[1], &len); + /* given "foo" get space for worse case "foo(%d)" .. add 20 */ + + e = Jim_GetLong(interp, argv[2], &l); + width = l; + if (e != JIM_OK) { + return e; + } + + e = Jim_GetLong(interp, argv[3], &l); + addr = l; + if (e != JIM_OK) { + return e; + } + e = Jim_GetLong(interp, argv[4], &l); + len = l; + if (e != JIM_OK) { + return e; + } + switch (width) { + case 8: + width = 1; + break; + case 16: + width = 2; + break; + case 32: + width = 4; + break; + default: + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL ); + return JIM_ERR; + } + if (len == 0) { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL); + return JIM_ERR; + } + if ((addr + (len * width)) < addr) { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL); + return JIM_ERR; + } + /* absurd transfer size? */ + if (len > 65536) { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL); + return JIM_ERR; + } + + if ((width == 1) || + ((width == 2) && ((addr & 1) == 0)) || + ((width == 4) && ((addr & 3) == 0))) { + /* all is well */ + } else { + char buf[100]; + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads", addr, width); + Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL); + return JIM_ERR; + } + + context = Jim_GetAssocData(interp, "context"); + if (context == NULL) + { + LOG_ERROR("array2mem: no command context"); + return JIM_ERR; + } + target = get_current_target(context); + if (target == NULL) + { + LOG_ERROR("array2mem: no current target"); + return JIM_ERR; + } + + /* Transfer loop */ + + /* index counter */ + n = 0; + /* assume ok */ + e = JIM_OK; + while (len) { + /* Slurp... in buffer size chunks */ + + count = len; /* in objects.. */ + if (count > (sizeof(buffer)/width)) { + count = (sizeof(buffer)/width); + } + + v = 0; /* shut up gcc */ + for (i = 0 ;i < count ;i++, n++) { + get_int_array_element(interp, varname, n, &v); + switch (width) { + case 4: + target_buffer_set_u32(target, &buffer[i*width], v); + break; + case 2: + target_buffer_set_u16(target, &buffer[i*width], v); + break; + case 1: + buffer[i] = v & 0x0ff; + break; + } + } + len -= count; + + retval = target->type->write_memory(target, addr, width, count, buffer); + if (retval != ERROR_OK) { + /* BOO !*/ + LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed", addr, width, count); + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL); + e = JIM_ERR; + len = 0; + } + } + + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + + return JIM_OK; +} |