diff options
Diffstat (limited to 'src/server')
| -rw-r--r-- | src/server/gdb_server.c | 82 |
1 files changed, 49 insertions, 33 deletions
diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c index 42f04680..16144851 100644 --- a/src/server/gdb_server.c +++ b/src/server/gdb_server.c @@ -289,7 +289,8 @@ int gdb_get_packet(connection_t *connection, char *buffer, int *len) if ((retval = gdb_get_char(connection, &character)) != ERROR_OK) return retval; - if (character == '#') break; + if (character == '#') + break; if (character == '}') { @@ -532,30 +533,33 @@ int gdb_last_signal_packet(connection_t *connection, target_t *target, char* pac return ERROR_OK; } -void gdb_str_to_target(target_t *target, char *str, char *tstr) +/* Convert register to string of bits. NB! The # of bits in the + * register might be non-divisible by 8(a byte), in which + * case an entire byte is shown. */ +void gdb_str_to_target(target_t *target, char *tstr, reg_t *reg) { - int str_len = strlen(str); + static const char *DIGITS = "0123456789abcdef"; int i; - if (str_len % 2) - { - ERROR("BUG: gdb value with uneven number of characters encountered: %s", str); - exit(-1); - } + u8 *buf; + int buf_len; + buf = reg->value; + buf_len = CEIL(reg->size, 8); if (target->endianness == TARGET_LITTLE_ENDIAN) { - for (i = 0; i < str_len; i+=2) + for (i = 0; i < buf_len; i++) { - tstr[str_len - i - 1] = str[i + 1]; - tstr[str_len - i - 2] = str[i]; + tstr[i*2] = DIGITS[(buf[i]>>4) & 0xf]; + tstr[i*2+1] = DIGITS[buf[i]&0xf]; } } else { - for (i = 0; i < str_len; i++) + for (i = 0; i < buf_len; i++) { - tstr[i] = str[i]; + tstr[(buf_len-1-i)*2] = DIGITS[(buf[i]>>4)&0xf]; + tstr[(buf_len-1-i)*2+1] = DIGITS[buf[i]&0xf]; } } } @@ -598,7 +602,9 @@ int gdb_get_registers_packet(connection_t *connection, target_t *target, char* p char *reg_packet_p; int i; +#ifdef _DEBUG_GDB_IO_ DEBUG("-"); +#endif if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK) { @@ -624,16 +630,18 @@ int gdb_get_registers_packet(connection_t *connection, target_t *target, char* p for (i = 0; i < reg_list_size; i++) { - char *hex_buf = buf_to_str(reg_list[i]->value, reg_list[i]->size, 16); - DEBUG("hex_buf: %s", hex_buf); - gdb_str_to_target(target, hex_buf, reg_packet_p); + gdb_str_to_target(target, reg_packet_p, reg_list[i]); reg_packet_p += CEIL(reg_list[i]->size, 8) * 2; - free(hex_buf); } - reg_packet_p = strndup(reg_packet, CEIL(reg_packet_size, 8) * 2); - DEBUG("reg_packet: %s", reg_packet_p); - free(reg_packet_p); +#ifdef _DEBUG_GDB_IO_ + { + char *reg_packet_p; + reg_packet_p = strndup(reg_packet, CEIL(reg_packet_size, 8) * 2); + DEBUG("reg_packet: %s", reg_packet_p); + free(reg_packet_p); + } +#endif gdb_put_packet(connection, reg_packet, CEIL(reg_packet_size, 8) * 2); free(reg_packet); @@ -651,7 +659,9 @@ int gdb_set_registers_packet(connection_t *connection, target_t *target, char *p int retval; char *packet_p; +#ifdef _DEBUG_GDB_IO_ DEBUG("-"); +#endif /* skip command character */ packet++; @@ -723,9 +733,10 @@ int gdb_get_register_packet(connection_t *connection, target_t *target, char *pa reg_t **reg_list; int reg_list_size; int retval; - char *hex_buf; +#ifdef _DEBUG_GDB_IO_ DEBUG("-"); +#endif if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK) { @@ -749,15 +760,12 @@ int gdb_get_register_packet(connection_t *connection, target_t *target, char *pa reg_packet = malloc(CEIL(reg_list[reg_num]->size, 8) * 2); - hex_buf = buf_to_str(reg_list[reg_num]->value, reg_list[reg_num]->size, 16); - - gdb_str_to_target(target, hex_buf, reg_packet); + gdb_str_to_target(target, reg_packet, reg_list[reg_num]); gdb_put_packet(connection, reg_packet, CEIL(reg_list[reg_num]->size, 8) * 2); free(reg_list); free(reg_packet); - free(hex_buf); return ERROR_OK; } @@ -1240,13 +1248,13 @@ void xml_printf(int *retval, char **xml, int *pos, int *size, const char *fmt, . * Need minimum 2 bytes to fit 1 char and 0 terminator. */ *size = *size * 2 + 2; - char *t=*xml; + char *t = *xml; *xml = realloc(*xml, *size); if (*xml == NULL) { if (t) free(t); - *retval=ERROR_SERVER_REMOTE_CLOSED; + *retval = ERROR_SERVER_REMOTE_CLOSED; return; } } @@ -1309,6 +1317,7 @@ int gdb_query_packet(connection_t *connection, target_t *target, char *packet, i cmd[i] = tmp; } cmd[(packet_size - 6)/2] = 0x0; + target_call_timer_callbacks(); command_run_line(cmd_ctx, cmd); free(cmd); } @@ -1363,15 +1372,21 @@ int gdb_query_packet(connection_t *connection, target_t *target, char *packet, i char *buffer = NULL; int pos = 0; int size = 0; + xml_printf(&retval, &buffer, &pos, &size, "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-", (GDB_BUFFER_SIZE - 1), gdb_use_memory_map == 1 ? '+' : '-'); - if (buffer!=NULL) + + if (retval != ERROR_OK) { - gdb_put_packet(connection, buffer, strlen(buffer)); - free(buffer); + gdb_send_error(connection, 01); + return ERROR_OK; } - return retval; + + gdb_put_packet(connection, buffer, strlen(buffer)); + free(buffer); + + return ERROR_OK; } else if (strstr(packet, "qXfer:memory-map:read::")) { @@ -1533,7 +1548,7 @@ int gdb_v_packet(connection_t *connection, target_t *target, char *packet, int p target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_PROGRAM); /* perform erase */ - if ((result = flash_erase(gdb_service->target, addr, length)) != ERROR_OK) + if ((result = flash_erase_address_range(gdb_service->target, addr, length)) != ERROR_OK) { /* GDB doesn't evaluate the actual error number returned, * treat a failed erase as an I/O error @@ -1598,7 +1613,8 @@ int gdb_v_packet(connection_t *connection, target_t *target, char *packet, int p /* disable gdb output while programming */ gdb_connection->output_disable = 1; - /* process the flashing buffer */ + /* process the flashing buffer. No need to erase as GDB + * always issues a vFlashErase first. */ if ((result = flash_write(gdb_service->target, gdb_connection->vflash_image, &written, &error_str, NULL, 0)) != ERROR_OK) { if (result == ERROR_FLASH_DST_OUT_OF_BANK) |