This stops GDB from launching with an empty memory map, making gdb load w/flashing fail for no obvious reason.
The error message points in the direction of the gdb-attach event that can be set up to issue a halt or "reset init" which will put GDB in a well defined stated upon attach and thus have a robust flash autoprobe. Signed-off-by: Øyvind Harboe <oyvind.har...@zylin.com> --- src/flash/nor/core.c | 11 +++++++---- src/flash/nor/core.h | 5 +++-- src/flash/nor/tcl.c | 26 +++++++++++--------------- src/server/gdb_server.c | 26 +++++++++++++++++++++++--- 4 files changed, 44 insertions(+), 24 deletions(-) diff --git a/src/flash/nor/core.c b/src/flash/nor/core.c index e6c0eeb..232d503 100644 --- a/src/flash/nor/core.c +++ b/src/flash/nor/core.c @@ -220,22 +220,25 @@ struct flash_bank *get_flash_bank_by_name(const char *name) return NULL; } -struct flash_bank *get_flash_bank_by_num(int num) +int get_flash_bank_by_num(int num, struct flash_bank **bank) { struct flash_bank *p = get_flash_bank_by_num_noprobe(num); int retval; if (p == NULL) - return NULL; + { + return ERROR_FAIL; + } retval = p->driver->auto_probe(p); if (retval != ERROR_OK) { LOG_ERROR("auto_probe failed %d\n", retval); - return NULL; + return retval; } - return p; + *bank = p; + return ERROR_OK; } /* lookup flash bank by address */ diff --git a/src/flash/nor/core.h b/src/flash/nor/core.h index 68220af..797cf68 100644 --- a/src/flash/nor/core.h +++ b/src/flash/nor/core.h @@ -157,9 +157,10 @@ struct flash_bank *get_flash_bank_by_name(const char *name); /** * Returns a flash bank by the specified flash_bank_s bank_number, @a num. * @param num The flash bank number. - * @returns A struct flash_bank for flash bank @a num, or NULL + * @param bank returned bank if fn returns ERROR_OK + * @returns ERROR_OK if successful */ -struct flash_bank *get_flash_bank_by_num(int num); +int get_flash_bank_by_num(int num, struct flash_bank **bank); /** * Retreives @a bank from a command argument, reporting errors parsing * the bank identifier or retreiving the specified bank. The bank diff --git a/src/flash/nor/tcl.c b/src/flash/nor/tcl.c index aed55c0..66b8ac3 100644 --- a/src/flash/nor/tcl.c +++ b/src/flash/nor/tcl.c @@ -42,13 +42,7 @@ COMMAND_HELPER(flash_command_get_bank, unsigned name_index, unsigned bank_num; COMMAND_PARSE_NUMBER(uint, name, bank_num); - *bank = get_flash_bank_by_num(bank_num); - if (!*bank) - { - command_print(CMD_CTX, "flash bank '%s' not found", name); - return ERROR_INVALID_ARGUMENTS; - } - return ERROR_OK; + return get_flash_bank_by_num(bank_num, bank); } @@ -310,9 +304,12 @@ COMMAND_HANDLER(handle_flash_erase_command) uint32_t last; COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], bank_nr); - struct flash_bank *p = get_flash_bank_by_num(bank_nr); - if (!p) - return ERROR_OK; + + struct flash_bank *p; + int retval; + retval = get_flash_bank_by_num(bank_nr, &p); + if (retval != ERROR_OK) + return retval; COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], first); if (strcmp(CMD_ARGV[2], "last") == 0) @@ -320,7 +317,6 @@ COMMAND_HANDLER(handle_flash_erase_command) else COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], last); - int retval; if ((retval = flash_check_sector_parameters(CMD_CTX, first, last, p->num_sectors)) != ERROR_OK) return retval; @@ -350,9 +346,10 @@ COMMAND_HANDLER(handle_flash_protect_command) uint32_t last; COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], bank_nr); - struct flash_bank *p = get_flash_bank_by_num(bank_nr); - if (!p) - return ERROR_OK; + struct flash_bank *p; + int retval = get_flash_bank_by_num(bank_nr, &p); + if (retval != ERROR_OK) + return retval; COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], first); if (strcmp(CMD_ARGV[2], "last") == 0) @@ -363,7 +360,6 @@ COMMAND_HANDLER(handle_flash_protect_command) bool set; COMMAND_PARSE_ON_OFF(CMD_ARGV[3], set); - int retval; if ((retval = flash_check_sector_parameters(CMD_CTX, first, last, p->num_sectors)) != ERROR_OK) return retval; diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c index f46980e..275d414 100644 --- a/src/server/gdb_server.c +++ b/src/server/gdb_server.c @@ -855,6 +855,26 @@ static int gdb_new_connection(struct connection *connection) gdb_putback_char(connection, initial_ack); target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_ATTACH); + if (gdb_use_memory_map) + { + /* Connect must fail if the memory map can't be set up correctly. + * + * This will cause an auto_probe to be invoked, which is either + * a no-op or it will fail when the target isn't ready(e.g. not halted). + */ + int i; + for (i = 0; i < flash_get_bank_count(); i++) + { + struct flash_bank *p; + retval = get_flash_bank_by_num(i, &p); + if (retval != ERROR_OK) + { + LOG_ERROR("Connect failed. Consider setting up a gdb-attach event for the target to prepare target for GDB connect."); + return retval; + } + } + } + gdb_actual_connections++; LOG_DEBUG("New GDB Connection: %d, Target %s, state: %s", gdb_actual_connections, @@ -1692,10 +1712,10 @@ static int gdb_memory_map(struct connection *connection, banks = malloc(sizeof(struct flash_bank *)*flash_get_bank_count()); for (i = 0; i < flash_get_bank_count(); i++) { - p = get_flash_bank_by_num(i); - if (p == NULL) { + retval = get_flash_bank_by_num(i, &p); + if (retval != ERROR_OK) + { free(banks); - retval = ERROR_FAIL; gdb_send_error(connection, retval); return retval; } -- 1.6.3.3 _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development