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.
14 #include <sys/types.h>
18 #include <sys/socket.h>
19 #include <netinet/in.h>
20 #include <arpa/inet.h>
24 #include <stlink-common.h>
26 #include "gdb-remote.h"
28 #define DEFAULT_LOGGING_LEVEL 50
29 #define DEFAULT_GDB_LISTEN_PORT 4242
31 #define STRINGIFY_inner(name) #name
32 #define STRINGIFY(name) STRINGIFY_inner(name)
34 #define FLASH_BASE 0x08000000
36 //Allways update the FLASH_PAGE before each use, by calling stlink_calculate_pagesize
37 #define FLASH_PAGE (sl->flash_pgsz)
39 static const char hex[] = "0123456789abcdef";
41 static const char* current_memory_map = NULL;
43 typedef struct _st_state_t {
44 // things from command line, bleh
46 // "/dev/serial/by-id/usb-FTDI_TTL232R-3V3_FTE531X6-if00-port0" is only 58 chars
53 int serve(stlink_t *sl, int port);
54 char* make_memory_map(stlink_t *sl);
57 int parse_options(int argc, char** argv, st_state_t *st) {
58 static struct option long_options[] = {
59 {"help", no_argument, NULL, 'h'},
60 {"verbose", optional_argument, NULL, 'v'},
61 {"device", required_argument, NULL, 'd'},
62 {"stlink_version", required_argument, NULL, 's'},
63 {"stlinkv1", no_argument, NULL, '1'},
64 {"listen_port", required_argument, NULL, 'p'},
67 const char * help_str = "%s - usage:\n\n"
68 " -h, --help\t\tPrint this help\n"
69 " -vXX, --verbose=XX\tspecify a specific verbosity level (0..99)\n"
70 " -v, --verbose\tspecify generally verbose logging\n"
71 " -d <device>, --device=/dev/stlink2_1\n"
72 "\t\t\tWhere is your stlink device connected?\n"
73 " -s X, --stlink_version=X\n"
74 "\t\t\tChoose what version of stlink to use, (defaults to 2)\n"
75 " -1, --stlinkv1\tForce stlink version 1\n"
76 " -p 4242, --listen_port=1234\n"
77 "\t\t\tSet the gdb server listen port. "
78 "(default port: " STRINGIFY(DEFAULT_GDB_LISTEN_PORT) ")\n"
85 while ((c = getopt_long(argc, argv, "hv::d:s:1p:", long_options, &option_index)) != -1) {
88 printf("XXXXX Shouldn't really normally come here, only if there's no corresponding option\n");
89 printf("option %s", long_options[option_index].name);
91 printf(" with arg %s", optarg);
96 printf(help_str, argv[0]);
101 st->logging_level = atoi(optarg);
103 st->logging_level = DEFAULT_LOGGING_LEVEL;
107 if (strlen(optarg) > sizeof (st->devicename)) {
108 fprintf(stderr, "device name too long: %zd\n", strlen(optarg));
110 strcpy(st->devicename, optarg);
114 st->stlink_version = 1;
117 sscanf(optarg, "%i", &q);
118 if (q < 0 || q > 2) {
119 fprintf(stderr, "stlink version %d unknown!\n", q);
122 st->stlink_version = q;
125 sscanf(optarg, "%i", &q);
127 fprintf(stderr, "Can't use a negative port to listen on: %d\n", q);
136 printf("non-option ARGV-elements: ");
137 while (optind < argc)
138 printf("%s ", argv[optind++]);
145 int main(int argc, char** argv) {
150 memset(&state, 0, sizeof(state));
152 state.stlink_version = 2;
153 state.logging_level = DEFAULT_LOGGING_LEVEL;
154 state.listen_port = DEFAULT_GDB_LISTEN_PORT;
155 parse_options(argc, argv, &state);
156 switch (state.stlink_version) {
158 sl = stlink_open_usb(state.logging_level);
159 if(sl == NULL) return 1;
162 sl = stlink_v1_open(state.logging_level);
163 if(sl == NULL) return 1;
167 printf("Chip ID is %08x, Core ID is %08x.\n", sl->chip_id, sl->core_id);
171 current_memory_map = make_memory_map(sl);
175 if (WSAStartup(MAKEWORD(2,2),&wsadata) !=0 ) {
180 while(serve(sl, state.listen_port) == 0);
187 /* Switch back to mass storage mode before closing. */
189 stlink_exit_debug_mode(sl);
195 static const char* const memory_map_template_F4 =
196 "<?xml version=\"1.0\"?>"
197 "<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
198 " \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"
200 " <memory type=\"rom\" start=\"0x00000000\" length=\"0x100000\"/>" // code = sram, bootrom or flash; flash is bigger
201 " <memory type=\"ram\" start=\"0x10000000\" length=\"0x10000\"/>" // ccm ram
202 " <memory type=\"ram\" start=\"0x20000000\" length=\"0x20000\"/>" // sram
203 " <memory type=\"flash\" start=\"0x08000000\" length=\"0x10000\">" //Sectors 0..3
204 " <property name=\"blocksize\">0x4000</property>" //16kB
206 " <memory type=\"flash\" start=\"0x08010000\" length=\"0x10000\">" //Sector 4
207 " <property name=\"blocksize\">0x10000</property>" //64kB
209 " <memory type=\"flash\" start=\"0x08020000\" length=\"0x70000\">" //Sectors 5..11
210 " <property name=\"blocksize\">0x20000</property>" //128kB
212 " <memory type=\"ram\" start=\"0x40000000\" length=\"0x1fffffff\"/>" // peripheral regs
213 " <memory type=\"ram\" start=\"0xe0000000\" length=\"0x1fffffff\"/>" // cortex regs
214 " <memory type=\"rom\" start=\"0x1fff0000\" length=\"0x7800\"/>" // bootrom
215 " <memory type=\"rom\" start=\"0x1fffc000\" length=\"0x10\"/>" // option byte area
218 static const char* const memory_map_template =
219 "<?xml version=\"1.0\"?>"
220 "<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
221 " \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"
223 " <memory type=\"rom\" start=\"0x00000000\" length=\"0x%zx\"/>" // code = sram, bootrom or flash; flash is bigger
224 " <memory type=\"ram\" start=\"0x20000000\" length=\"0x%zx\"/>" // sram 8k
225 " <memory type=\"flash\" start=\"0x08000000\" length=\"0x%zx\">"
226 " <property name=\"blocksize\">0x%zx</property>"
228 " <memory type=\"ram\" start=\"0x40000000\" length=\"0x1fffffff\"/>" // peripheral regs
229 " <memory type=\"ram\" start=\"0xe0000000\" length=\"0x1fffffff\"/>" // cortex regs
230 " <memory type=\"rom\" start=\"0x%08x\" length=\"0x%zx\"/>" // bootrom
231 " <memory type=\"rom\" start=\"0x1ffff800\" length=\"0x10\"/>" // option byte area
234 char* make_memory_map(stlink_t *sl) {
235 /* This will be freed in serve() */
236 char* map = malloc(4096);
239 if(sl->chip_id==STM32_CHIPID_F4) {
240 strcpy(map, memory_map_template_F4);
242 snprintf(map, 4096, memory_map_template,
245 sl->flash_size, sl->flash_pgsz,
246 sl->sys_base, sl->sys_size);
253 * DWT_COMP0 0xE0001020
254 * DWT_MASK0 0xE0001024
255 * DWT_FUNCTION0 0xE0001028
256 * DWT_COMP1 0xE0001030
257 * DWT_MASK1 0xE0001034
258 * DWT_FUNCTION1 0xE0001038
259 * DWT_COMP2 0xE0001040
260 * DWT_MASK2 0xE0001044
261 * DWT_FUNCTION2 0xE0001048
262 * DWT_COMP3 0xE0001050
263 * DWT_MASK3 0xE0001054
264 * DWT_FUNCTION3 0xE0001058
267 #define DATA_WATCH_NUM 4
269 enum watchfun { WATCHDISABLED = 0, WATCHREAD = 5, WATCHWRITE = 6, WATCHACCESS = 7 };
271 struct code_hw_watchpoint {
277 struct code_hw_watchpoint data_watches[DATA_WATCH_NUM];
279 static void init_data_watchpoints(stlink_t *sl) {
281 printf("init watchpoints\n");
284 // set trcena in debug command to turn on dwt unit
285 stlink_write_debug32(sl, 0xE000EDFC,
286 stlink_read_debug32(sl, 0xE000EDFC) | (1<<24));
288 // make sure all watchpoints are cleared
289 for(int i = 0; i < DATA_WATCH_NUM; i++) {
290 data_watches[i].fun = WATCHDISABLED;
291 stlink_write_debug32(sl, 0xe0001028 + i * 16, 0);
295 static int add_data_watchpoint(stlink_t *sl, enum watchfun wf, stm32_addr_t addr, unsigned int len)
301 // find a free watchpoint
311 if((mask != (uint32_t)-1) && (mask < 16)) {
312 for(i = 0; i < DATA_WATCH_NUM; i++) {
313 // is this an empty slot ?
314 if(data_watches[i].fun == WATCHDISABLED) {
316 printf("insert watchpoint %d addr %x wf %u mask %u len %d\n", i, addr, wf, mask, len);
319 data_watches[i].fun = wf;
320 data_watches[i].addr = addr;
321 data_watches[i].mask = mask;
323 // insert comparator address
324 stlink_write_debug32(sl, 0xE0001020 + i * 16, addr);
327 stlink_write_debug32(sl, 0xE0001024 + i * 16, mask);
330 stlink_write_debug32(sl, 0xE0001028 + i * 16, wf);
332 // just to make sure the matched bit is clear !
333 stlink_read_debug32(sl, 0xE0001028 + i * 16);
340 printf("failure: add watchpoints addr %x wf %u len %u\n", addr, wf, len);
345 static int delete_data_watchpoint(stlink_t *sl, stm32_addr_t addr)
349 for(i = 0 ; i < DATA_WATCH_NUM; i++) {
350 if((data_watches[i].addr == addr) && (data_watches[i].fun != WATCHDISABLED)) {
352 printf("delete watchpoint %d addr %x\n", i, addr);
355 data_watches[i].fun = WATCHDISABLED;
356 stlink_write_debug32(sl, 0xe0001028 + i * 16, 0);
363 printf("failure: delete watchpoint addr %x\n", addr);
369 #define CODE_BREAK_NUM 6
370 #define CODE_BREAK_LOW 0x01
371 #define CODE_BREAK_HIGH 0x02
373 struct code_hw_breakpoint {
378 struct code_hw_breakpoint code_breaks[CODE_BREAK_NUM];
380 static void init_code_breakpoints(stlink_t *sl) {
381 memset(sl->q_buf, 0, 4);
382 stlink_write_debug32(sl, CM3_REG_FP_CTRL, 0x03 /*KEY | ENABLE4*/);
383 printf("KARL - should read back as 0x03, not 60 02 00 00\n");
384 stlink_read_debug32(sl, CM3_REG_FP_CTRL);
386 for(int i = 0; i < CODE_BREAK_NUM; i++) {
387 code_breaks[i].type = 0;
388 stlink_write_debug32(sl, CM3_REG_FP_COMP0 + i * 4, 0);
392 static int update_code_breakpoint(stlink_t *sl, stm32_addr_t addr, int set) {
393 stm32_addr_t fpb_addr = addr & ~0x3;
394 int type = addr & 0x2 ? CODE_BREAK_HIGH : CODE_BREAK_LOW;
397 fprintf(stderr, "update_code_breakpoint: unaligned address %08x\n", addr);
402 for(int i = 0; i < CODE_BREAK_NUM; i++) {
403 if(fpb_addr == code_breaks[i].addr ||
404 (set && code_breaks[i].type == 0)) {
411 if(set) return -1; // Free slot not found
412 else return 0; // Breakpoint is already removed
415 struct code_hw_breakpoint* brk = &code_breaks[id];
417 brk->addr = fpb_addr;
419 if(set) brk->type |= type;
420 else brk->type &= ~type;
424 printf("clearing hw break %d\n", id);
427 stlink_write_debug32(sl, 0xe0002008 + id * 4, 0);
429 uint32_t mask = (brk->addr) | 1 | (brk->type << 30);
432 printf("setting hw break %d at %08x (%d)\n",
433 id, brk->addr, brk->type);
434 printf("reg %08x \n",
438 stlink_write_debug32(sl, 0xe0002008 + id * 4, mask);
450 struct flash_block* next;
453 static struct flash_block* flash_root;
455 static int flash_add_block(stm32_addr_t addr, unsigned length, stlink_t *sl) {
457 if(addr < FLASH_BASE || addr + length > FLASH_BASE + sl->flash_size) {
458 fprintf(stderr, "flash_add_block: incorrect bounds\n");
462 stlink_calculate_pagesize(sl, addr);
463 if(addr % FLASH_PAGE != 0 || length % FLASH_PAGE != 0) {
464 fprintf(stderr, "flash_add_block: unaligned block\n");
468 struct flash_block* new = malloc(sizeof(struct flash_block));
469 new->next = flash_root;
472 new->length = length;
473 new->data = calloc(length, 1);
480 static int flash_populate(stm32_addr_t addr, uint8_t* data, unsigned length) {
481 unsigned int fit_blocks = 0, fit_length = 0;
483 for(struct flash_block* fb = flash_root; fb; fb = fb->next) {
484 /* Block: ------X------Y--------
488 * Block intersects with data, if:
492 unsigned X = fb->addr, Y = fb->addr + fb->length;
493 unsigned a = addr, b = addr + length;
495 // from start of the block
496 unsigned start = (a > X ? a : X) - X;
497 unsigned end = (b > Y ? Y : b) - X;
499 memcpy(fb->data + start, data, end - start);
502 fit_length += end - start;
506 if(fit_blocks == 0) {
507 fprintf(stderr, "Unfit data block %08x -> %04x\n", addr, length);
511 if(fit_length != length) {
512 fprintf(stderr, "warning: data block %08x -> %04x truncated to %04x\n",
513 addr, length, fit_length);
514 fprintf(stderr, "(this is not an error, just a GDB glitch)\n");
520 static int flash_go(stlink_t *sl) {
523 // Some kinds of clock settings do not allow writing to flash.
526 for(struct flash_block* fb = flash_root; fb; fb = fb->next) {
528 printf("flash_do: block %08x -> %04x\n", fb->addr, fb->length);
531 unsigned length = fb->length;
532 for(stm32_addr_t page = fb->addr; page < fb->addr + fb->length; page += FLASH_PAGE) {
535 stlink_calculate_pagesize(sl, page);
538 printf("flash_do: page %08x\n", page);
541 if(stlink_write_flash(sl, page, fb->data + (page - fb->addr),
542 length > FLASH_PAGE ? FLASH_PAGE : length) < 0)
552 for(struct flash_block* fb = flash_root, *next; fb; fb = next) {
563 int serve(stlink_t *sl, int port) {
564 int sock = socket(AF_INET, SOCK_STREAM, 0);
570 unsigned int val = 1;
571 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&val, sizeof(val));
573 struct sockaddr_in serv_addr;
574 memset(&serv_addr,0,sizeof(struct sockaddr_in));
575 serv_addr.sin_family = AF_INET;
576 serv_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
577 serv_addr.sin_port = htons(port);
579 if(bind(sock, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
584 if(listen(sock, 5) < 0) {
589 stlink_force_debug(sl);
591 init_code_breakpoints(sl);
592 init_data_watchpoints(sl);
594 printf("Listening at *:%d...\n", port);
596 int client = accept(sock, NULL, NULL);
597 //signal (SIGINT, SIG_DFL);
605 printf("GDB connected.\n");
608 * To allow resetting the chip from GDB it is required to
609 * emulate attaching and detaching to target.
611 unsigned int attached = 1;
616 int status = gdb_recv_packet(client, &packet);
618 fprintf(stderr, "cannot recv: %d\n", status);
623 printf("recv: %s\n", packet);
631 if(packet[1] == 'P' || packet[1] == 'C' || packet[1] == 'L') {
636 char *separator = strstr(packet, ":"), *params = "";
637 if(separator == NULL) {
638 separator = packet + strlen(packet);
640 params = separator + 1;
643 unsigned queryNameLength = (separator - &packet[1]);
644 char* queryName = calloc(queryNameLength + 1, 1);
645 strncpy(queryName, &packet[1], queryNameLength);
648 printf("query: %s;%s\n", queryName, params);
651 if(!strcmp(queryName, "Supported")) {
652 reply = strdup("PacketSize=3fff;qXfer:memory-map:read+");
653 } else if(!strcmp(queryName, "Xfer")) {
654 char *type, *op, *__s_addr, *s_length;
656 char *annex __attribute__((unused));
658 type = strsep(&tok, ":");
659 op = strsep(&tok, ":");
660 annex = strsep(&tok, ":");
661 __s_addr = strsep(&tok, ",");
664 unsigned addr = strtoul(__s_addr, NULL, 16),
665 length = strtoul(s_length, NULL, 16);
668 printf("Xfer: type:%s;op:%s;annex:%s;addr:%d;length:%d\n",
669 type, op, annex, addr, length);
672 const char* data = NULL;
674 if(!strcmp(type, "memory-map") && !strcmp(op, "read"))
675 data = current_memory_map;
678 unsigned data_length = strlen(data);
679 if(addr + length > data_length)
680 length = data_length - addr;
685 reply = calloc(length + 2, 1);
687 strncpy(&reply[1], data, length);
690 } else if(!strncmp(queryName, "Rcmd,",4)) {
691 // Rcmd uses the wrong separator
692 char *separator = strstr(packet, ","), *params = "";
693 if(separator == NULL) {
694 separator = packet + strlen(packet);
696 params = separator + 1;
700 if (!strncmp(params,"7265",4)) {// resume
702 printf("Rcmd: resume\n");
706 reply = strdup("OK");
707 } else if (!strncmp(params,"6861",4)) { //half
708 reply = strdup("OK");
710 stlink_force_debug(sl);
713 printf("Rcmd: halt\n");
715 } else if (!strncmp(params,"7265",4)) { //reset
716 reply = strdup("OK");
718 stlink_force_debug(sl);
720 init_code_breakpoints(sl);
721 init_data_watchpoints(sl);
724 printf("Rcmd: reset\n");
728 printf("Rcmd: %s\n", params);
745 char *cmdName = strtok_r(packet, ":;", ¶ms);
747 cmdName++; // vCommand -> Command
749 if(!strcmp(cmdName, "FlashErase")) {
750 char *__s_addr, *s_length;
753 __s_addr = strsep(&tok, ",");
756 unsigned addr = strtoul(__s_addr, NULL, 16),
757 length = strtoul(s_length, NULL, 16);
760 printf("FlashErase: addr:%08x,len:%04x\n",
764 if(flash_add_block(addr, length, sl) < 0) {
765 reply = strdup("E00");
767 reply = strdup("OK");
769 } else if(!strcmp(cmdName, "FlashWrite")) {
770 char *__s_addr, *data;
773 __s_addr = strsep(&tok, ":");
776 unsigned addr = strtoul(__s_addr, NULL, 16);
777 unsigned data_length = status - (data - packet);
779 // Length of decoded data cannot be more than
780 // encoded, as escapes are removed.
781 // Additional byte is reserved for alignment fix.
782 uint8_t *decoded = calloc(data_length + 1, 1);
783 unsigned dec_index = 0;
784 for(unsigned int i = 0; i < data_length; i++) {
785 if(data[i] == 0x7d) {
787 decoded[dec_index++] = data[i] ^ 0x20;
789 decoded[dec_index++] = data[i];
794 if(dec_index % 2 != 0)
798 printf("binary packet %d -> %d\n", data_length, dec_index);
801 if(flash_populate(addr, decoded, dec_index) < 0) {
802 reply = strdup("E00");
804 reply = strdup("OK");
806 } else if(!strcmp(cmdName, "FlashDone")) {
807 if(flash_go(sl) < 0) {
808 reply = strdup("E00");
810 reply = strdup("OK");
812 } else if(!strcmp(cmdName, "Kill")) {
815 reply = strdup("OK");
828 int status = gdb_check_for_interrupt(client);
830 fprintf(stderr, "cannot check for int: %d\n", status);
835 stlink_force_debug(sl);
840 if(sl->core_stat == STLINK_CORE_HALTED) {
847 reply = strdup("S05"); // TRAP
853 reply = strdup("S05"); // TRAP
858 reply = strdup("S05"); // TRAP
860 /* Stub shall reply OK if not attached. */
861 reply = strdup("OK");
866 stlink_read_all_regs(sl, ®p);
868 reply = calloc(8 * 16 + 1, 1);
869 for(int i = 0; i < 16; i++)
870 sprintf(&reply[i * 8], "%08x", htonl(regp.r[i]));
875 unsigned id = strtoul(&packet[1], NULL, 16);
876 unsigned myreg = 0xDEADDEAD;
879 stlink_read_reg(sl, id, ®p);
880 myreg = htonl(regp.r[id]);
881 } else if(id == 0x19) {
882 stlink_read_reg(sl, 16, ®p);
883 myreg = htonl(regp.xpsr);
885 reply = strdup("E00");
888 reply = calloc(8 + 1, 1);
889 sprintf(reply, "%08x", myreg);
895 char* s_reg = &packet[1];
896 char* s_value = strstr(&packet[1], "=") + 1;
898 unsigned reg = strtoul(s_reg, NULL, 16);
899 unsigned value = strtoul(s_value, NULL, 16);
902 stlink_write_reg(sl, ntohl(value), reg);
903 } else if(reg == 0x19) {
904 stlink_write_reg(sl, ntohl(value), 16);
906 reply = strdup("E00");
910 reply = strdup("OK");
917 for(int i = 0; i < 16; i++) {
919 strncpy(str, &packet[1 + i * 8], 8);
920 uint32_t reg = strtoul(str, NULL, 16);
921 stlink_write_reg(sl, ntohl(reg), i);
924 reply = strdup("OK");
928 char* s_start = &packet[1];
929 char* s_count = strstr(&packet[1], ",") + 1;
931 stm32_addr_t start = strtoul(s_start, NULL, 16);
932 unsigned count = strtoul(s_count, NULL, 16);
934 unsigned adj_start = start % 4;
936 stlink_read_mem32(sl, start - adj_start, (count % 4 == 0) ?
937 count : count + 4 - (count % 4));
939 reply = calloc(count * 2 + 1, 1);
940 for(unsigned int i = 0; i < count; i++) {
941 reply[i * 2 + 0] = hex[sl->q_buf[i + adj_start] >> 4];
942 reply[i * 2 + 1] = hex[sl->q_buf[i + adj_start] & 0xf];
949 char* s_start = &packet[1];
950 char* s_count = strstr(&packet[1], ",") + 1;
951 char* hexdata = strstr(packet, ":") + 1;
953 stm32_addr_t start = strtoul(s_start, NULL, 16);
954 unsigned count = strtoul(s_count, NULL, 16);
956 for(unsigned int i = 0; i < count; i ++) {
957 char hex[3] = { hexdata[i*2], hexdata[i*2+1], 0 };
958 uint8_t byte = strtoul(hex, NULL, 16);
962 if((count % 4) == 0 && (start % 4) == 0) {
963 stlink_write_mem32(sl, start, count);
965 stlink_write_mem8(sl, start, count);
968 reply = strdup("OK");
975 stm32_addr_t addr = strtoul(&packet[3], &endptr, 16);
976 stm32_addr_t len = strtoul(&endptr[1], NULL, 16);
980 if(update_code_breakpoint(sl, addr, 1) < 0) {
981 reply = strdup("E00");
983 reply = strdup("OK");
987 case '2': // insert write watchpoint
988 case '3': // insert read watchpoint
989 case '4': // insert access watchpoint
992 if(packet[1] == '2') {
994 } else if(packet[1] == '3') {
998 if(add_data_watchpoint(sl, wf, addr, len) < 0) {
999 reply = strdup("E00");
1001 reply = strdup("OK");
1014 stm32_addr_t addr = strtoul(&packet[3], &endptr, 16);
1015 //stm32_addr_t len = strtoul(&endptr[1], NULL, 16);
1017 switch (packet[1]) {
1018 case '1': // remove breakpoint
1019 update_code_breakpoint(sl, addr, 0);
1020 reply = strdup("OK");
1023 case '2' : // remove write watchpoint
1024 case '3' : // remove read watchpoint
1025 case '4' : // remove access watchpoint
1026 if(delete_data_watchpoint(sl, addr) < 0) {
1027 reply = strdup("E00");
1029 reply = strdup("OK");
1041 * Enter extended mode which allows restarting.
1042 * We do support that always.
1045 reply = strdup("OK");
1051 /* Reset the core. */
1054 init_code_breakpoints(sl);
1055 init_data_watchpoints(sl);
1059 reply = strdup("OK");
1070 printf("send: %s\n", reply);
1073 int result = gdb_send_packet(client, reply);
1075 fprintf(stderr, "cannot send: %d\n", result);