Merge pull request #181 from SuperVirus/master

[fw/stlink] / gdbserver / gdb-server.c

diff --git a/gdbserver/gdb-server.c b/gdbserver/gdb-server.c
index 8190e1061127bdc13c360d6bf8a9d34a2960e5da..bf1478122a25db0832ef37805122345aad08da2f 100644 (file)
--- a/gdbserver/gdb-server.c
+++ b/gdbserver/gdb-server.c
@@ -36,6 +36,8 @@
 //Allways update the FLASH_PAGE before each use, by calling stlink_calculate_pagesize
 #define FLASH_PAGE (sl->flash_pgsz)
 
+stlink_t *connected_stlink = NULL;
+
 static const char hex[] = "0123456789abcdef";
 
 static const char* current_memory_map = NULL;
@@ -48,12 +50,25 @@ typedef struct _st_state_t {
     int logging_level;
        int listen_port;
     int persistent;
+    int reset;
 } st_state_t;
 
 
 int serve(stlink_t *sl, st_state_t *st);
 char* make_memory_map(stlink_t *sl);
 
+static void cleanup(int signal __attribute__((unused))) {
+    if (connected_stlink) {
+        /* Switch back to mass storage mode before closing. */
+        stlink_run(connected_stlink);
+        stlink_exit_debug_mode(connected_stlink);
+        stlink_close(connected_stlink);
+    }
+
+    exit(1);
+}
+
+
 
 int parse_options(int argc, char** argv, st_state_t *st) {
     static struct option long_options[] = {
@@ -64,6 +79,7 @@ int parse_options(int argc, char** argv, st_state_t *st) {
         {"stlinkv1", no_argument, NULL, '1'},
                {"listen_port", required_argument, NULL, 'p'},
                {"multi", optional_argument, NULL, 'm'},
+               {"no-reset", optional_argument, NULL, 'n'},
         {0, 0, 0, 0},
     };
        const char * help_str = "%s - usage:\n\n"
@@ -81,13 +97,15 @@ int parse_options(int argc, char** argv, st_state_t *st) {
     "  -m, --multi\n"
     "\t\t\tSet gdb server to extended mode.\n"
     "\t\t\tst-util will continue listening for connections after disconnect.\n"
+    "  -n, --no-reset\n"
+    "\t\t\tDo not reset board on connection.\n"
        ;
 
 
     int option_index = 0;
     int c;
     int q;
-    while ((c = getopt_long(argc, argv, "hv::d:s:1p:m", long_options, &option_index)) != -1) {
+    while ((c = getopt_long(argc, argv, "hv::d:s:1p:mn", long_options, &option_index)) != -1) {
         switch (c) {
         case 0:
             printf("XXXXX Shouldn't really normally come here, only if there's no corresponding option\n");
@@ -137,6 +155,9 @@ int parse_options(int argc, char** argv, st_state_t *st) {
                case 'm':
                        st->persistent = 1;
                        break;
+               case 'n':
+                       st->reset = 0;
+                       break;
         }
     }
 
@@ -151,6 +172,7 @@ int parse_options(int argc, char** argv, st_state_t *st) {
 
 
 int main(int argc, char** argv) {
+       uint32_t voltage;
 
        stlink_t *sl = NULL;
 
@@ -160,20 +182,34 @@ int main(int argc, char** argv) {
        state.stlink_version = 2;
        state.logging_level = DEFAULT_LOGGING_LEVEL;
        state.listen_port = DEFAULT_GDB_LISTEN_PORT;
+       state.reset = 1;    /* By default, reset board */
        parse_options(argc, argv, &state);
        switch (state.stlink_version) {
        case 2:
-               sl = stlink_open_usb(state.logging_level);
+               sl = stlink_open_usb(state.logging_level, 0);
                if(sl == NULL) return 1;
                break;
        case 1:
-               sl = stlink_v1_open(state.logging_level);
+               sl = stlink_v1_open(state.logging_level, 0);
                if(sl == NULL) return 1;
                break;
     }
 
+    connected_stlink = sl;
+    signal(SIGINT, &cleanup);
+    signal(SIGTERM, &cleanup);
+
+    if (state.reset) {
+               stlink_reset(sl);
+    }
+
        printf("Chip ID is %08x, Core ID is  %08x.\n", sl->chip_id, sl->core_id);
 
+       voltage = stlink_target_voltage(sl);
+       if (voltage != -1) {
+               printf("Target voltage is %d mV.\n", voltage);
+       }
+
        sl->verbose=0;
 
        current_memory_map = make_memory_map(sl);
@@ -187,6 +223,9 @@ int main(int argc, char** argv) {
 
        do {
                serve(sl, &state);
+
+               /* Continue */
+               stlink_run(sl);
        } while (state.persistent);
 
 #ifdef __MINGW32__
@@ -195,7 +234,6 @@ winsock_error:
 #endif
 
        /* Switch back to mass storage mode before closing. */
-       stlink_run(sl);
        stlink_exit_debug_mode(sl);
        stlink_close(sl);
 
@@ -352,7 +390,7 @@ struct code_hw_watchpoint {
 struct code_hw_watchpoint data_watches[DATA_WATCH_NUM];
 
 static void init_data_watchpoints(stlink_t *sl) {
-       #ifdef DEBUG
+       #if DEBUG
        printf("init watchpoints\n");
        #endif
 
@@ -387,7 +425,7 @@ static int add_data_watchpoint(stlink_t *sl, enum watchfun wf, stm32_addr_t addr
                for(i = 0; i < DATA_WATCH_NUM; i++) {
                        // is this an empty slot ?
                        if(data_watches[i].fun == WATCHDISABLED) {
-                               #ifdef DEBUG
+                               #if DEBUG
                                printf("insert watchpoint %d addr %x wf %u mask %u len %d\n", i, addr, wf, mask, len);
                                #endif
 
@@ -411,7 +449,7 @@ static int add_data_watchpoint(stlink_t *sl, enum watchfun wf, stm32_addr_t addr
                }
        }
 
-       #ifdef DEBUG
+       #if DEBUG
        printf("failure: add watchpoints addr %x wf %u len %u\n", addr, wf, len);
        #endif
        return -1;
@@ -423,7 +461,7 @@ static int delete_data_watchpoint(stlink_t *sl, stm32_addr_t addr)
 
        for(i = 0 ; i < DATA_WATCH_NUM; i++) {
                if((data_watches[i].addr == addr) && (data_watches[i].fun != WATCHDISABLED)) {
-                       #ifdef DEBUG
+                       #if DEBUG
                        printf("delete watchpoint %d addr %x\n", i, addr);
                        #endif
 
@@ -434,7 +472,7 @@ static int delete_data_watchpoint(stlink_t *sl, stm32_addr_t addr)
                }
        }
 
-       #ifdef DEBUG
+       #if DEBUG
        printf("failure: delete watchpoint addr %x\n", addr);
        #endif
 
@@ -495,7 +533,7 @@ static int update_code_breakpoint(stlink_t *sl, stm32_addr_t addr, int set) {
        else    brk->type &= ~type;
 
        if(brk->type == 0) {
-               #ifdef DEBUG
+               #if DEBUG
                printf("clearing hw break %d\n", id);
                #endif
 
@@ -503,7 +541,7 @@ static int update_code_breakpoint(stlink_t *sl, stm32_addr_t addr, int set) {
        } else {
                uint32_t mask = (brk->addr) | 1 | (brk->type << 30);
 
-               #ifdef DEBUG
+               #if DEBUG
                printf("setting hw break %d at %08x (%d)\n",
                        id, brk->addr, brk->type);
                printf("reg %08x \n",
@@ -599,7 +637,7 @@ static int flash_go(stlink_t *sl) {
        stlink_reset(sl);
 
        for(struct flash_block* fb = flash_root; fb; fb = fb->next) {
-               #ifdef DEBUG
+               #if DEBUG
                printf("flash_do: block %08x -> %04x\n", fb->addr, fb->length);
                #endif
 
@@ -609,7 +647,7 @@ static int flash_go(stlink_t *sl) {
                        //Update FLASH_PAGE
                        stlink_calculate_pagesize(sl, page);
 
-                       #ifdef DEBUG
+                       #if DEBUG
                        printf("flash_do: page %08x\n", page);
                        #endif
 
@@ -648,7 +686,7 @@ int serve(stlink_t *sl, st_state_t *st) {
        struct sockaddr_in serv_addr;
        memset(&serv_addr,0,sizeof(struct sockaddr_in));
        serv_addr.sin_family = AF_INET;
-       serv_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+       serv_addr.sin_addr.s_addr = INADDR_ANY;
        serv_addr.sin_port = htons(st->listen_port);
 
        if(bind(sock, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
@@ -661,11 +699,6 @@ int serve(stlink_t *sl, st_state_t *st) {
                return 1;
        }
 
-       stlink_force_debug(sl);
-       stlink_reset(sl);
-       init_code_breakpoints(sl);
-       init_data_watchpoints(sl);
-
        printf("Listening at *:%d...\n", st->listen_port);
 
        int client = accept(sock, NULL, NULL);
@@ -677,6 +710,13 @@ int serve(stlink_t *sl, st_state_t *st) {
 
        close(sock);
 
+       stlink_force_debug(sl);
+       if (st->reset) {
+               stlink_reset(sl);
+    }
+       init_code_breakpoints(sl);
+       init_data_watchpoints(sl);
+
        printf("GDB connected.\n");
 
        /*
@@ -694,7 +734,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                        return 1;
                }
 
-               #ifdef DEBUG
+               #if DEBUG
                printf("recv: %s\n", packet);
                #endif
 
@@ -719,7 +759,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                        char* queryName = calloc(queryNameLength + 1, 1);
                        strncpy(queryName, &packet[1], queryNameLength);
 
-                       #ifdef DEBUG
+                       #if DEBUG
                        printf("query: %s;%s\n", queryName, params);
                        #endif
 
@@ -744,7 +784,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                                unsigned addr = strtoul(__s_addr, NULL, 16),
                                       length = strtoul(s_length, NULL, 16);
 
-                               #ifdef DEBUG
+                               #if DEBUG
                                printf("Xfer: type:%s;op:%s;annex:%s;addr:%d;length:%d\n",
                                        type, op, annex, addr, length);
                                #endif
@@ -781,7 +821,7 @@ int serve(stlink_t *sl, st_state_t *st) {
 
 
                                if (!strncmp(params,"726573756d65",12)) {// resume
-#ifdef DEBUG
+#if DEBUG
                                        printf("Rcmd: resume\n");
 #endif
                                        stlink_run(sl);
@@ -792,7 +832,7 @@ int serve(stlink_t *sl, st_state_t *st) {
 
                                        stlink_force_debug(sl);
 
-#ifdef DEBUG
+#if DEBUG
                                        printf("Rcmd: halt\n");
 #endif
                 } else if (!strncmp(params,"6a7461675f7265736574",20)) { //jtag_reset
@@ -802,7 +842,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                                        stlink_jtag_reset(sl, 0);
                                        stlink_force_debug(sl);
 
-#ifdef DEBUG
+#if DEBUG
                                        printf("Rcmd: jtag_reset\n");
 #endif
                 } else if (!strncmp(params,"7265736574",10)) { //reset
@@ -813,11 +853,11 @@ int serve(stlink_t *sl, st_state_t *st) {
                                        init_code_breakpoints(sl);
                                        init_data_watchpoints(sl);
 
-#ifdef DEBUG
+#if DEBUG
                                        printf("Rcmd: reset\n");
 #endif
                                } else {
-#ifdef DEBUG
+#if DEBUG
                                        printf("Rcmd: %s\n", params);
 #endif
 
@@ -849,7 +889,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                                unsigned addr = strtoul(__s_addr, NULL, 16),
                                       length = strtoul(s_length, NULL, 16);
 
-                               #ifdef DEBUG
+                               #if DEBUG
                                printf("FlashErase: addr:%08x,len:%04x\n",
                                        addr, length);
                                #endif
@@ -887,7 +927,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                                if(dec_index % 2 != 0)
                                        dec_index++;
 
-                               #ifdef DEBUG
+                               #if DEBUG
                                printf("binary packet %d -> %d\n", data_length, dec_index);
                                #endif
 
@@ -1229,7 +1269,7 @@ int serve(stlink_t *sl, st_state_t *st) {
                }
 
                if(reply) {
-                       #ifdef DEBUG
+                       #if DEBUG
                        printf("send: %s\n", reply);
                        #endif