/* -*- tab-width:8 -*- */
-
+#define DEBUG 0
/*
Copyright (C) 2011 Peter Zotov <whitequark@whitequark.org>
Use of this source code is governed by a BSD-style
#include "gdb-remote.h"
-#define DEFAULT_LOGGING_LEVEL 100
+#define DEFAULT_LOGGING_LEVEL 50
#define DEFAULT_GDB_LISTEN_PORT 4242
#define STRINGIFY_inner(name) #name
#define STRINGIFY(name) STRINGIFY_inner(name)
#define FLASH_BASE 0x08000000
+
+//Allways update the FLASH_PAGE before each use, by calling stlink_calculate_pagesize
#define FLASH_PAGE (sl->flash_pgsz)
-#define FLASH_PAGE_MASK (~((1 << 10) - 1))
-#define FLASH_SIZE (FLASH_PAGE * 128)
static const char hex[] = "0123456789abcdef";
static const char* current_memory_map = NULL;
-/*
- * Chip IDs are explained in the appropriate programming manual for the
- * DBGMCU_IDCODE register (0xE0042000)
- */
-
-#define CORE_M3_R1 0x1BA00477
-#define CORE_M3_R2 0x4BA00477
-#define CORE_M4_R0 0x2BA01477
-
typedef struct _st_state_t {
// things from command line, bleh
int stlink_version;
break;
}
- // ALLLL of this should move into "stlink_open_xxx"
-
- if (stlink_current_mode(sl) != STLINK_DEV_DEBUG_MODE) {
- if (stlink_current_mode(sl) == STLINK_DEV_DFU_MODE) {
- stlink_exit_dfu_mode(sl);
- }
- stlink_enter_swd_mode(sl);
- }
-
- uint32_t chip_id = stlink_chip_id(sl);
- uint32_t core_id = stlink_core_id(sl);
-
- /* Fix chip_id for F4 */
- if (((chip_id & 0xFFF) == 0x411) && (core_id == CORE_M4_R0)) {
- printf("Fixing wrong chip_id for STM32F4 Rev A errata\n");
- chip_id = 0x413;
- }
+ printf("Chip ID is %08x, Core ID is %08x.\n", sl->chip_id, sl->core_id);
- printf("Chip ID is %08x, Core ID is %08x.\n", chip_id, core_id);
+ sl->verbose=0;
current_memory_map = make_memory_map(sl);
return 0;
}
+static const char* const memory_map_template_F4 =
+ "<?xml version=\"1.0\"?>"
+ "<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
+ " \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"
+ "<memory-map>"
+ " <memory type=\"rom\" start=\"0x00000000\" length=\"0x100000\"/>" // code = sram, bootrom or flash; flash is bigger
+ " <memory type=\"ram\" start=\"0x20000000\" length=\"0x30000\"/>" // sram
+ " <memory type=\"flash\" start=\"0x08000000\" length=\"0x10000\">" //Sectors 0..3
+ " <property name=\"blocksize\">0x4000</property>" //16kB
+ " </memory>"
+ " <memory type=\"flash\" start=\"0x08010000\" length=\"0x10000\">" //Sector 4
+ " <property name=\"blocksize\">0x10000</property>" //64kB
+ " </memory>"
+ " <memory type=\"flash\" start=\"0x08020000\" length=\"0x70000\">" //Sectors 5..11
+ " <property name=\"blocksize\">0x20000</property>" //128kB
+ " </memory>"
+ " <memory type=\"ram\" start=\"0x40000000\" length=\"0x1fffffff\"/>" // peripheral regs
+ " <memory type=\"ram\" start=\"0xe0000000\" length=\"0x1fffffff\"/>" // cortex regs
+ " <memory type=\"rom\" start=\"0x1fff0000\" length=\"0x7800\"/>" // bootrom
+ " <memory type=\"rom\" start=\"0x1fffc000\" length=\"0x10\"/>" // option byte area
+ "</memory-map>";
+
static const char* const memory_map_template =
"<?xml version=\"1.0\"?>"
"<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
char* map = malloc(4096);
map[0] = '\0';
- snprintf(map, 4096, memory_map_template,
+ if(sl->chip_id==STM32_CHIPID_F4) {
+ strcpy(map, memory_map_template_F4);
+ } else {
+ snprintf(map, 4096, memory_map_template,
sl->flash_size,
sl->sram_size,
sl->flash_size, sl->flash_pgsz,
sl->sys_base, sl->sys_size);
-
+ }
return map;
}
#endif
// set trcena in debug command to turn on dwt unit
- stlink_read_mem32(sl, 0xE000EDFC, 4);
- sl->q_buf[3] |= 1;
- stlink_write_mem32(sl, 0xE000EDFC, 4);
+ stlink_write_debug32(sl, 0xE000EDFC,
+ stlink_read_debug32(sl, 0xE000EDFC) | (1<<24));
// make sure all watchpoints are cleared
- memset(sl->q_buf, 0, 4);
for(int i = 0; i < DATA_WATCH_NUM; i++) {
data_watches[i].fun = WATCHDISABLED;
- stlink_write_mem32(sl, 0xe0001028 + i * 16, 4);
+ stlink_write_debug32(sl, 0xe0001028 + i * 16, 0);
}
}
data_watches[i].mask = mask;
// insert comparator address
- sl->q_buf[0] = (addr & 0xff);
- sl->q_buf[1] = ((addr >> 8) & 0xff);
- sl->q_buf[2] = ((addr >> 16) & 0xff);
- sl->q_buf[3] = ((addr >> 24) & 0xff);
-
- stlink_write_mem32(sl, 0xE0001020 + i * 16, 4);
+ stlink_write_debug32(sl, 0xE0001020 + i * 16, addr);
// insert mask
- memset(sl->q_buf, 0, 4);
- sl->q_buf[0] = mask;
- stlink_write_mem32(sl, 0xE0001024 + i * 16, 4);
+ stlink_write_debug32(sl, 0xE0001024 + i * 16, mask);
// insert function
- memset(sl->q_buf, 0, 4);
- sl->q_buf[0] = wf;
- stlink_write_mem32(sl, 0xE0001028 + i * 16, 4);
+ stlink_write_debug32(sl, 0xE0001028 + i * 16, wf);
// just to make sure the matched bit is clear !
- stlink_read_mem32(sl, 0xE0001028 + i * 16, 4);
+ stlink_read_debug32(sl, 0xE0001028 + i * 16);
return 0;
}
}
printf("delete watchpoint %d addr %x\n", i, addr);
#endif
- memset(sl->q_buf, 0, 4);
data_watches[i].fun = WATCHDISABLED;
- stlink_write_mem32(sl, 0xe0001028 + i * 16, 4);
+ stlink_write_debug32(sl, 0xe0001028 + i * 16, 0);
return 0;
}
static void init_code_breakpoints(stlink_t *sl) {
memset(sl->q_buf, 0, 4);
- sl->q_buf[0] = 0x03; // KEY | ENABLE
- stlink_write_mem32(sl, CM3_REG_FP_CTRL, 4);
+ stlink_write_debug32(sl, CM3_REG_FP_CTRL, 0x03 /*KEY | ENABLE4*/);
printf("KARL - should read back as 0x03, not 60 02 00 00\n");
- stlink_read_mem32(sl, CM3_REG_FP_CTRL, 4);
+ stlink_read_debug32(sl, CM3_REG_FP_CTRL);
- memset(sl->q_buf, 0, 4);
for(int i = 0; i < CODE_BREAK_NUM; i++) {
code_breaks[i].type = 0;
- stlink_write_mem32(sl, CM3_REG_FP_COMP0 + i * 4, 4);
+ stlink_write_debug32(sl, CM3_REG_FP_COMP0 + i * 4, 0);
}
}
if(set) brk->type |= type;
else brk->type &= ~type;
- memset(sl->q_buf, 0, 4);
-
if(brk->type == 0) {
#ifdef DEBUG
printf("clearing hw break %d\n", id);
#endif
- stlink_write_mem32(sl, 0xe0002008 + id * 4, 4);
+ stlink_write_debug32(sl, 0xe0002008 + id * 4, 0);
} else {
- sl->q_buf[0] = ( brk->addr & 0xff) | 1;
- sl->q_buf[1] = ((brk->addr >> 8) & 0xff);
- sl->q_buf[2] = ((brk->addr >> 16) & 0xff);
- sl->q_buf[3] = ((brk->addr >> 24) & 0xff) | (brk->type << 6);
+ uint32_t mask = (brk->addr) | 1 | (brk->type << 30);
#ifdef DEBUG
printf("setting hw break %d at %08x (%d)\n",
id, brk->addr, brk->type);
- printf("reg %02x %02x %02x %02x\n",
- sl->q_buf[3], sl->q_buf[2], sl->q_buf[1], sl->q_buf[0]);
+ printf("reg %08x \n",
+ mask);
#endif
- stlink_write_mem32(sl, 0xe0002008 + id * 4, 4);
+ stlink_write_debug32(sl, 0xe0002008 + id * 4, mask);
}
return 0;
static struct flash_block* flash_root;
-static int flash_add_block(stm32_addr_t addr, unsigned length,
- stlink_t *sl) {
- if(addr < FLASH_BASE || addr + length > FLASH_BASE + FLASH_SIZE) {
+static int flash_add_block(stm32_addr_t addr, unsigned length, stlink_t *sl) {
+
+ if(addr < FLASH_BASE || addr + length > FLASH_BASE + sl->flash_size) {
fprintf(stderr, "flash_add_block: incorrect bounds\n");
return -1;
}
+ stlink_calculate_pagesize(sl, addr);
if(addr % FLASH_PAGE != 0 || length % FLASH_PAGE != 0) {
fprintf(stderr, "flash_add_block: unaligned block\n");
return -1;
unsigned length = fb->length;
for(stm32_addr_t page = fb->addr; page < fb->addr + fb->length; page += FLASH_PAGE) {
+
+ //Update FLASH_PAGE
+ stlink_calculate_pagesize(sl, page);
+
#ifdef DEBUG
printf("flash_do: page %08x\n", page);
#endif
- stlink_erase_flash_page(sl, page);
-
if(stlink_write_flash(sl, page, fb->data + (page - fb->addr),
length > FLASH_PAGE ? FLASH_PAGE : length) < 0)
goto error;
- }
-
+ }
}
stlink_reset(sl);
strncpy(&reply[1], data, length);
}
}
+ } else if(!strncmp(queryName, "Rcmd,",4)) {
+ // Rcmd uses the wrong separator
+ char *separator = strstr(packet, ","), *params = "";
+ if(separator == NULL) {
+ separator = packet + strlen(packet);
+ } else {
+ params = separator + 1;
+ }
+
+
+ if (!strncmp(params,"7265",4)) {// resume
+#ifdef DEBUG
+ printf("Rcmd: resume\n");
+#endif
+ stlink_run(sl);
+
+ reply = strdup("OK");
+ } else if (!strncmp(params,"6861",4)) { //half
+ reply = strdup("OK");
+
+ stlink_force_debug(sl);
+
+#ifdef DEBUG
+ printf("Rcmd: halt\n");
+#endif
+ } else if (!strncmp(params,"7265",4)) { //reset
+ reply = strdup("OK");
+
+ stlink_force_debug(sl);
+ stlink_reset(sl);
+ init_code_breakpoints(sl);
+ init_data_watchpoints(sl);
+
+#ifdef DEBUG
+ printf("Rcmd: reset\n");
+#endif
+ } else {
+#ifdef DEBUG
+ printf("Rcmd: %s\n", params);
+#endif
+
+ }
+
}
if(reply == NULL)