1 /* -*- tab-width:8 -*- */
4 Copyright (C) 2011 Peter Zotov <whitequark@whitequark.org>
5 Use of this source code is governed by a BSD-style
6 license that can be found in the LICENSE file.
13 #include <sys/types.h>
14 #include <sys/socket.h>
15 #include <netinet/in.h>
16 #include <arpa/inet.h>
19 #include <stlink-common.h>
21 #include "gdb-remote.h"
23 #define FLASH_BASE 0x08000000
24 #define FLASH_PAGE (sl->flash_pgsz)
25 #define FLASH_PAGE_MASK (~((1 << 10) - 1))
26 #define FLASH_SIZE (FLASH_PAGE * 128)
28 volatile int do_exit = 0;
34 static const char hex[] = "0123456789abcdef";
36 static const char* current_memory_map = NULL;
41 uint32_t flash_size_reg;
42 uint32_t max_flash_size, flash_pagesize;
44 uint32_t bootrom_base, bootrom_size;
46 { 0x410, "F1 Medium-density device", 0x1ffff7e0,
47 0x20000, 0x400, 0x5000, 0x1ffff000, 0x800 }, // table 2, pm0063
48 { 0x411, "F2 device", 0, /* No flash size register found in the docs*/
49 0x100000, 0x20000, 0x20000, 0x1fff0000, 0x7800 }, // table 1, pm0059
50 { 0x412, "F1 Low-density device", 0x1ffff7e0,
51 0x8000, 0x400, 0x2800, 0x1ffff000, 0x800 }, // table 1, pm0063
52 /*No flash size register? page size is variable */
53 { 0x413, "F4 device", 0x1FFF7A10,
54 0x100000, 0x4000, 0x30000, 0x1fff0000, 0x7800 }, // table 1, pm0081
55 { 0x414, "F1 High-density device", 0x1ffff7e0,
56 0x80000, 0x800, 0x10000, 0x1ffff000, 0x800 }, // table 3 pm0063
57 // This ignores the EEPROM! (and uses the page erase size,
58 // not the sector write protection...)
59 { 0x416, "L1 Med-density device", 0x1FF8004C, // table 1, pm0062
60 0x20000, 0x100, 0x4000, 0x1ff00000, 0x1000 },
61 { 0x418, "F1 Connectivity line device", 0x1ffff7e0,
62 0x40000, 0x800, 0x10000, 0x1fffb000, 0x4800 },
63 { 0x420, "F1 Medium-density value line device", 0x1ffff7e0,
64 0x20000, 0x400, 0x2000, 0x1ffff000, 0x800 },
65 { 0x428, "F1 High-density value line device", 0x1ffff7e0,
66 0x80000, 0x800, 0x8000, 0x1ffff000, 0x800 },
67 { 0x430, "F1 XL-density device", 0x1ffff7e0, // pm0068
68 0x100000, 0x800, 0x18000, 0x1fffe000, 0x1800 },
72 int serve(stlink_t *sl, int port);
73 char* make_memory_map(const struct chip_params *params, uint32_t flash_size);
75 int main(int argc, char** argv) {
80 const char * HelpStr = "\nUsage:\n"
81 "\tst-util [Arguments]\n"
82 "\tArguments (no more than 2):\n"
83 "\t\t<Port>: Port. Default: 4242.\n"
84 "\t\t{usb|sgauto|/dev/sgX}: Transport, "
85 "where X = {0, 1, 2, ...}. Default: USB.\n"
88 "\t\tst-util sgauto\n"
89 "\t\tst-util 1234 usb\n"
90 "\t\tst-util /dev/sgX 1234\n"
91 "\t\tst-util 1234 /dev/sgX\n";
94 // Parsing the arguments of command line ...
96 if (argc == 1 || argc > 3) {
97 fprintf(stderr, HelpStr, NULL);
101 for(int a = 1; a < argc; a++) {
104 int p = atoi(argv[a]);
105 if (p < 0 || p > 0xFFFF) {
106 fprintf(stderr, "Invalid port\n");
107 fprintf(stderr, HelpStr, NULL);
110 if (p > 0 && port == 0) {port = p; continue;}
115 fprintf(stderr, "Invalid argumets\n");
116 fprintf(stderr, HelpStr, NULL);
121 if (!strcmp(argv[a], "usb")) {
122 sl = stlink_open_usb(10);
123 if(sl == NULL) return 1;
128 if (!strncmp(argv[a], "/dev/sgX", 7)) {
129 if(!CONFIG_USE_LIBSG) {
130 fprintf(stderr, "libsg not use\n");
133 sl = stlink_quirk_open(argv[a], 0);
134 if(sl == NULL) return 1;
139 if (!strcmp(argv[a], "sgauto")) {
140 if(!CONFIG_USE_LIBSG) {
141 fprintf(stderr, "libsg not use\n");
145 // Search ST-LINK (from /dev/sg0 to /dev/sg99)
146 for(int DevNum = 0; DevNum <= 99; DevNum++)
149 char DevName[] = "/dev/sgX";
150 DevName[7] = DevNum + '0';
151 if ( !access(DevName, F_OK) )
152 sl = stlink_quirk_open(DevName, 0);
155 char DevName[] = "/dev/sgXY";
156 DevName[7] = DevNum/10 + '0';
157 DevName[8] = DevNum%10 + '0';
158 if ( !access(DevName, F_OK) )
159 sl = stlink_quirk_open(DevName, 0);
161 if (sl != NULL) break;
164 if(sl == NULL) return 1;
169 fprintf(stderr, "Invalid argumets\n");
170 fprintf(stderr, HelpStr, NULL);
174 // Default transport: USB
175 if (sl == NULL) sl = stlink_open_usb(10);
176 // Default port: 4242
177 if (port == 0) port = 4242;
182 if (sl == NULL) return 1;
184 if (stlink_current_mode(sl) == STLINK_DEV_DFU_MODE) {
185 stlink_exit_dfu_mode(sl);
188 if(stlink_current_mode(sl) != STLINK_DEV_DEBUG_MODE) {
189 stlink_enter_swd_mode(sl);
192 stlink_identify_device(sl);
193 printf("Chip ID is %08x, Core ID is %08x.\n", sl->chip_id, sl->core_id);
197 const struct chip_params* params = NULL;
199 for(int i = 0; i < sizeof(devices) / sizeof(devices[0]); i++) {
200 if(devices[i].chip_id == (sl->chip_id & 0xFFF)) {
201 params = &devices[i];
207 fprintf(stderr, "Cannot recognize the connected device!\n");
211 printf("Device connected: %s\n", params->description);
212 printf("Device parameters: SRAM: 0x%x bytes, Flash: up to 0x%x bytes in pages of 0x%x bytes\n",
213 params->sram_size, params->max_flash_size, params->flash_pagesize);
215 FLASH_PAGE = params->flash_pagesize;
217 //sl->flash_pgsz=0x4000;
218 //sl->flash_size=0x100000;
222 stlink_read_mem32(sl, params->flash_size_reg, 4);
223 flash_size = sl->q_buf[0] | (sl->q_buf[1] << 8);
225 //flash_size=0x100000;
227 printf("Flash size is %d KiB.\n", flash_size);
228 // memory map is in 1k blocks.
229 current_memory_map = make_memory_map(params, flash_size * 0x400);
231 while(serve(sl, port) == 0);
233 /* Switch back to mass storage mode before closing. */
235 stlink_exit_debug_mode(sl);
241 static const char* const memory_map_template =
242 "<?xml version=\"1.0\"?>"
243 "<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
244 " \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"
246 " <memory type=\"rom\" start=\"0x00000000\" length=\"0x%x\"/>" // code = sram, bootrom or flash; flash is bigger
247 " <memory type=\"ram\" start=\"0x20000000\" length=\"0x%x\"/>" // sram 8k
248 " <memory type=\"flash\" start=\"0x08000000\" length=\"0x%x\">"
249 " <property name=\"blocksize\">0x%x</property>"
251 " <memory type=\"ram\" start=\"0x40000000\" length=\"0x1fffffff\"/>" // peripheral regs
252 " <memory type=\"ram\" start=\"0xe0000000\" length=\"0x1fffffff\"/>" // cortex regs
253 " <memory type=\"rom\" start=\"0x%08x\" length=\"0x%x\"/>" // bootrom
254 " <memory type=\"rom\" start=\"0x1ffff800\" length=\"0x8\"/>" // option byte area
257 char* make_memory_map(const struct chip_params *params, uint32_t flash_size) {
258 /* This will be freed in serve() */
259 char* map = malloc(4096);
262 snprintf(map, 4096, memory_map_template,
265 flash_size, params->flash_pagesize,
266 params->bootrom_base, params->bootrom_size);
273 * DWT_COMP0 0xE0001020
274 * DWT_MASK0 0xE0001024
275 * DWT_FUNCTION0 0xE0001028
276 * DWT_COMP1 0xE0001030
277 * DWT_MASK1 0xE0001034
278 * DWT_FUNCTION1 0xE0001038
279 * DWT_COMP2 0xE0001040
280 * DWT_MASK2 0xE0001044
281 * DWT_FUNCTION2 0xE0001048
282 * DWT_COMP3 0xE0001050
283 * DWT_MASK3 0xE0001054
284 * DWT_FUNCTION3 0xE0001058
287 #define DATA_WATCH_NUM 4
289 enum watchfun { WATCHDISABLED = 0, WATCHREAD = 5, WATCHWRITE = 6, WATCHACCESS = 7 };
291 struct code_hw_watchpoint {
297 struct code_hw_watchpoint data_watches[DATA_WATCH_NUM];
299 static void init_data_watchpoints(stlink_t *sl) {
301 printf("init watchpoints\n");
304 // set trcena in debug command to turn on dwt unit
305 stlink_read_mem32(sl, 0xE000EDFC, 4);
307 stlink_write_mem32(sl, 0xE000EDFC, 4);
309 // make sure all watchpoints are cleared
310 memset(sl->q_buf, 0, 4);
311 for(int i = 0; i < DATA_WATCH_NUM; i++) {
312 data_watches[i].fun = WATCHDISABLED;
313 stlink_write_mem32(sl, 0xe0001028 + i * 16, 4);
317 static int add_data_watchpoint(stlink_t *sl, enum watchfun wf, stm32_addr_t addr, unsigned int len)
323 // find a free watchpoint
333 if((mask != -1) && (mask < 16)) {
334 for(i = 0; i < DATA_WATCH_NUM; i++) {
335 // is this an empty slot ?
336 if(data_watches[i].fun == WATCHDISABLED) {
338 printf("insert watchpoint %d addr %x wf %u mask %u len %d\n", i, addr, wf, mask, len);
341 data_watches[i].fun = wf;
342 data_watches[i].addr = addr;
343 data_watches[i].mask = mask;
345 // insert comparator address
346 sl->q_buf[0] = (addr & 0xff);
347 sl->q_buf[1] = ((addr >> 8) & 0xff);
348 sl->q_buf[2] = ((addr >> 16) & 0xff);
349 sl->q_buf[3] = ((addr >> 24) & 0xff);
351 stlink_write_mem32(sl, 0xE0001020 + i * 16, 4);
354 memset(sl->q_buf, 0, 4);
356 stlink_write_mem32(sl, 0xE0001024 + i * 16, 4);
359 memset(sl->q_buf, 0, 4);
361 stlink_write_mem32(sl, 0xE0001028 + i * 16, 4);
363 // just to make sure the matched bit is clear !
364 stlink_read_mem32(sl, 0xE0001028 + i * 16, 4);
371 printf("failure: add watchpoints addr %x wf %u len %u\n", addr, wf, len);
376 static int delete_data_watchpoint(stlink_t *sl, stm32_addr_t addr)
380 for(i = 0 ; i < DATA_WATCH_NUM; i++) {
381 if((data_watches[i].addr == addr) && (data_watches[i].fun != WATCHDISABLED)) {
383 printf("delete watchpoint %d addr %x\n", i, addr);
386 memset(sl->q_buf, 0, 4);
387 data_watches[i].fun = WATCHDISABLED;
388 stlink_write_mem32(sl, 0xe0001028 + i * 16, 4);
395 printf("failure: delete watchpoint addr %x\n", addr);
401 #define CODE_BREAK_NUM 6
402 #define CODE_BREAK_LOW 0x01
403 #define CODE_BREAK_HIGH 0x02
405 struct code_hw_breakpoint {
410 struct code_hw_breakpoint code_breaks[CODE_BREAK_NUM];
412 static void init_code_breakpoints(stlink_t *sl) {
413 memset(sl->q_buf, 0, 4);
414 sl->q_buf[0] = 0x03; // KEY | ENABLE
415 stlink_write_mem32(sl, CM3_REG_FP_CTRL, 4);
416 printf("KARL - should read back as 0x03, not 60 02 00 00\n");
417 stlink_read_mem32(sl, CM3_REG_FP_CTRL, 4);
419 memset(sl->q_buf, 0, 4);
420 for(int i = 0; i < CODE_BREAK_NUM; i++) {
421 code_breaks[i].type = 0;
422 stlink_write_mem32(sl, CM3_REG_FP_COMP0 + i * 4, 4);
426 static int update_code_breakpoint(stlink_t *sl, stm32_addr_t addr, int set) {
427 stm32_addr_t fpb_addr = addr & ~0x3;
428 int type = addr & 0x2 ? CODE_BREAK_HIGH : CODE_BREAK_LOW;
431 fprintf(stderr, "update_code_breakpoint: unaligned address %08x\n", addr);
436 for(int i = 0; i < CODE_BREAK_NUM; i++) {
437 if(fpb_addr == code_breaks[i].addr ||
438 (set && code_breaks[i].type == 0)) {
445 if(set) return -1; // Free slot not found
446 else return 0; // Breakpoint is already removed
449 struct code_hw_breakpoint* brk = &code_breaks[id];
451 brk->addr = fpb_addr;
453 if(set) brk->type |= type;
454 else brk->type &= ~type;
456 memset(sl->q_buf, 0, 4);
460 printf("clearing hw break %d\n", id);
463 stlink_write_mem32(sl, 0xe0002008 + id * 4, 4);
465 sl->q_buf[0] = ( brk->addr & 0xff) | 1;
466 sl->q_buf[1] = ((brk->addr >> 8) & 0xff);
467 sl->q_buf[2] = ((brk->addr >> 16) & 0xff);
468 sl->q_buf[3] = ((brk->addr >> 24) & 0xff) | (brk->type << 6);
471 printf("setting hw break %d at %08x (%d)\n",
472 id, brk->addr, brk->type);
473 printf("reg %02x %02x %02x %02x\n",
474 sl->q_buf[3], sl->q_buf[2], sl->q_buf[1], sl->q_buf[0]);
477 stlink_write_mem32(sl, 0xe0002008 + id * 4, 4);
489 struct flash_block* next;
492 static struct flash_block* flash_root;
494 static int flash_add_block(stm32_addr_t addr, unsigned length,
496 if(addr < FLASH_BASE || addr + length > FLASH_BASE + FLASH_SIZE) {
497 fprintf(stderr, "flash_add_block: incorrect bounds\n");
501 if(addr % FLASH_PAGE != 0 || length % FLASH_PAGE != 0) {
502 fprintf(stderr, "flash_add_block: unaligned block\n");
506 struct flash_block* new = malloc(sizeof(struct flash_block));
507 new->next = flash_root;
510 new->length = length;
511 new->data = calloc(length, 1);
518 static int flash_populate(stm32_addr_t addr, uint8_t* data, unsigned length) {
519 int fit_blocks = 0, fit_length = 0;
521 for(struct flash_block* fb = flash_root; fb; fb = fb->next) {
522 /* Block: ------X------Y--------
526 * Block intersects with data, if:
530 unsigned X = fb->addr, Y = fb->addr + fb->length;
531 unsigned a = addr, b = addr + length;
533 // from start of the block
534 unsigned start = (a > X ? a : X) - X;
535 unsigned end = (b > Y ? Y : b) - X;
537 memcpy(fb->data + start, data, end - start);
540 fit_length += end - start;
544 if(fit_blocks == 0) {
545 fprintf(stderr, "Unfit data block %08x -> %04x\n", addr, length);
549 if(fit_length != length) {
550 fprintf(stderr, "warning: data block %08x -> %04x truncated to %04x\n",
551 addr, length, fit_length);
552 fprintf(stderr, "(this is not an error, just a GDB glitch)\n");
558 static int flash_go(stlink_t *sl) {
561 // Some kinds of clock settings do not allow writing to flash.
564 for(struct flash_block* fb = flash_root; fb; fb = fb->next) {
566 printf("flash_do: block %08x -> %04x\n", fb->addr, fb->length);
569 unsigned length = fb->length;
570 for(stm32_addr_t page = fb->addr; page < fb->addr + fb->length; page += FLASH_PAGE) {
572 printf("flash_do: page %08x\n", page);
575 //todo:write flash already does erase so why is this here?
576 stlink_erase_flash_page(sl, page);
578 if(stlink_write_flash(sl, page, fb->data + (page - fb->addr),
579 length > FLASH_PAGE ? FLASH_PAGE : length) < 0)
590 for(struct flash_block* fb = flash_root, *next; fb; fb = next) {
601 int serve(stlink_t *sl, int port) {
602 int sock = socket(AF_INET, SOCK_STREAM, 0);
608 unsigned int val = 1;
609 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
611 struct sockaddr_in serv_addr = {0};
612 serv_addr.sin_family = AF_INET;
613 serv_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
614 serv_addr.sin_port = htons(port);
616 if(bind(sock, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
621 if(listen(sock, 5) < 0) {
626 stlink_force_debug(sl);
628 init_code_breakpoints(sl);
629 init_data_watchpoints(sl);
631 printf("Listening at *:%d...\n", port);
633 (void) signal (SIGINT, ctrl_c);
634 int client = accept(sock, NULL, NULL);
635 signal (SIGINT, SIG_DFL);
643 printf("GDB connected.\n");
646 * To allow resetting the chip from GDB it is required to
647 * emulate attaching and detaching to target.
649 unsigned int attached = 1;
654 int status = gdb_recv_packet(client, &packet);
656 fprintf(stderr, "cannot recv: %d\n", status);
661 printf("recv: %s\n", packet);
669 if(packet[1] == 'P' || packet[1] == 'C' || packet[1] == 'L') {
674 char *separator = strstr(packet, ":"), *params = "";
675 if(separator == NULL) {
676 separator = packet + strlen(packet);
678 params = separator + 1;
681 unsigned queryNameLength = (separator - &packet[1]);
682 char* queryName = calloc(queryNameLength + 1, 1);
683 strncpy(queryName, &packet[1], queryNameLength);
686 printf("query: %s;%s\n", queryName, params);
689 if(!strcmp(queryName, "Supported")) {
690 reply = strdup("PacketSize=3fff;qXfer:memory-map:read+");
691 } else if(!strcmp(queryName, "Xfer")) {
692 char *type, *op, *s_addr, *s_length;
694 char *annex __attribute__((unused));
696 type = strsep(&tok, ":");
697 op = strsep(&tok, ":");
698 annex = strsep(&tok, ":");
699 s_addr = strsep(&tok, ",");
702 unsigned addr = strtoul(s_addr, NULL, 16),
703 length = strtoul(s_length, NULL, 16);
706 printf("Xfer: type:%s;op:%s;annex:%s;addr:%d;length:%d\n",
707 type, op, annex, addr, length);
710 const char* data = NULL;
712 if(!strcmp(type, "memory-map") && !strcmp(op, "read"))
713 data = current_memory_map;
716 unsigned data_length = strlen(data);
717 if(addr + length > data_length)
718 length = data_length - addr;
723 reply = calloc(length + 2, 1);
725 strncpy(&reply[1], data, length);
740 char *cmdName = strtok_r(packet, ":;", ¶ms);
742 cmdName++; // vCommand -> Command
744 if(!strcmp(cmdName, "FlashErase")) {
745 char *s_addr, *s_length;
748 s_addr = strsep(&tok, ",");
751 unsigned addr = strtoul(s_addr, NULL, 16),
752 length = strtoul(s_length, NULL, 16);
755 printf("FlashErase: addr:%08x,len:%04x\n",
759 if(flash_add_block(addr, length, sl) < 0) {
760 reply = strdup("E00");
762 reply = strdup("OK");
764 } else if(!strcmp(cmdName, "FlashWrite")) {
768 s_addr = strsep(&tok, ":");
771 unsigned addr = strtoul(s_addr, NULL, 16);
772 unsigned data_length = status - (data - packet);
774 // Length of decoded data cannot be more than
775 // encoded, as escapes are removed.
776 // Additional byte is reserved for alignment fix.
777 uint8_t *decoded = calloc(data_length + 1, 1);
778 unsigned dec_index = 0;
779 for(int i = 0; i < data_length; i++) {
780 if(data[i] == 0x7d) {
782 decoded[dec_index++] = data[i] ^ 0x20;
784 decoded[dec_index++] = data[i];
789 if(dec_index % 2 != 0)
793 printf("binary packet %d -> %d\n", data_length, dec_index);
796 if(flash_populate(addr, decoded, dec_index) < 0) {
797 reply = strdup("E00");
799 reply = strdup("OK");
801 } else if(!strcmp(cmdName, "FlashDone")) {
802 if(flash_go(sl) < 0) {
803 reply = strdup("E00");
805 reply = strdup("OK");
807 } else if(!strcmp(cmdName, "Kill")) {
810 reply = strdup("OK");
823 int status = gdb_check_for_interrupt(client);
825 fprintf(stderr, "cannot check for int: %d\n", status);
830 stlink_force_debug(sl);
835 if(sl->core_stat == STLINK_CORE_HALTED) {
842 reply = strdup("S05"); // TRAP
848 reply = strdup("S05"); // TRAP
853 reply = strdup("S05"); // TRAP
855 /* Stub shall reply OK if not attached. */
856 reply = strdup("OK");
861 stlink_read_all_regs(sl, ®p);
863 reply = calloc(8 * 16 + 1, 1);
864 for(int i = 0; i < 16; i++)
865 sprintf(&reply[i * 8], "%08x", htonl(regp.r[i]));
870 unsigned id = strtoul(&packet[1], NULL, 16);
871 unsigned myreg = 0xDEADDEAD;
874 stlink_read_reg(sl, id, ®p);
875 myreg = htonl(regp.r[id]);
876 } else if(id == 0x19) {
877 stlink_read_reg(sl, 16, ®p);
878 myreg = htonl(regp.xpsr);
880 reply = strdup("E00");
883 reply = calloc(8 + 1, 1);
884 sprintf(reply, "%08x", myreg);
890 char* s_reg = &packet[1];
891 char* s_value = strstr(&packet[1], "=") + 1;
893 unsigned reg = strtoul(s_reg, NULL, 16);
894 unsigned value = strtoul(s_value, NULL, 16);
897 stlink_write_reg(sl, ntohl(value), reg);
898 } else if(reg == 0x19) {
899 stlink_write_reg(sl, ntohl(value), 16);
901 reply = strdup("E00");
905 reply = strdup("OK");
912 for(int i = 0; i < 16; i++) {
914 strncpy(str, &packet[1 + i * 8], 8);
915 uint32_t reg = strtoul(str, NULL, 16);
916 stlink_write_reg(sl, ntohl(reg), i);
919 reply = strdup("OK");
923 char* s_start = &packet[1];
924 char* s_count = strstr(&packet[1], ",") + 1;
926 stm32_addr_t start = strtoul(s_start, NULL, 16);
927 unsigned count = strtoul(s_count, NULL, 16);
929 unsigned adj_start = start % 4;
931 stlink_read_mem32(sl, start - adj_start, (count % 4 == 0) ?
932 count : count + 4 - (count % 4));
934 reply = calloc(count * 2 + 1, 1);
935 for(int i = 0; i < count; i++) {
936 reply[i * 2 + 0] = hex[sl->q_buf[i + adj_start] >> 4];
937 reply[i * 2 + 1] = hex[sl->q_buf[i + adj_start] & 0xf];
944 char* s_start = &packet[1];
945 char* s_count = strstr(&packet[1], ",") + 1;
946 char* hexdata = strstr(packet, ":") + 1;
948 stm32_addr_t start = strtoul(s_start, NULL, 16);
949 unsigned count = strtoul(s_count, NULL, 16);
951 for(int i = 0; i < count; i ++) {
952 char hex[3] = { hexdata[i*2], hexdata[i*2+1], 0 };
953 uint8_t byte = strtoul(hex, NULL, 16);
957 if((count % 4) == 0 && (start % 4) == 0) {
958 stlink_write_mem32(sl, start, count);
960 stlink_write_mem8(sl, start, count);
963 reply = strdup("OK");
970 stm32_addr_t addr = strtoul(&packet[3], &endptr, 16);
971 stm32_addr_t len = strtoul(&endptr[1], NULL, 16);
975 if(update_code_breakpoint(sl, addr, 1) < 0) {
976 reply = strdup("E00");
978 reply = strdup("OK");
982 case '2': // insert write watchpoint
983 case '3': // insert read watchpoint
984 case '4': // insert access watchpoint
987 if(packet[1] == '2') {
989 } else if(packet[1] == '3') {
993 if(add_data_watchpoint(sl, wf, addr, len) < 0) {
994 reply = strdup("E00");
996 reply = strdup("OK");
1009 stm32_addr_t addr = strtoul(&packet[3], &endptr, 16);
1010 //stm32_addr_t len = strtoul(&endptr[1], NULL, 16);
1012 switch (packet[1]) {
1013 case '1': // remove breakpoint
1014 update_code_breakpoint(sl, addr, 0);
1015 reply = strdup("OK");
1018 case '2' : // remove write watchpoint
1019 case '3' : // remove read watchpoint
1020 case '4' : // remove access watchpoint
1021 if(delete_data_watchpoint(sl, addr) < 0) {
1022 reply = strdup("E00");
1024 reply = strdup("OK");
1036 * Enter extended mode which allows restarting.
1037 * We do support that always.
1040 reply = strdup("OK");
1046 /* Reset the core. */
1049 init_code_breakpoints(sl);
1050 init_data_watchpoints(sl);
1054 reply = strdup("OK");
1065 printf("send: %s\n", reply);
1068 int result = gdb_send_packet(client, reply);
1070 fprintf(stderr, "cannot send: %d\n", result);