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Separated device commands.

This commit is contained in:
Daniel Beer 2010-04-10 14:35:36 +12:00
parent a52ab171f3
commit 7e309acdc5
15 changed files with 822 additions and 747 deletions
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2
Makefile
View File

@ -40,7 +40,7 @@ install: mspdebug mspdebug.man
.SUFFIXES: .c .o
mspdebug: main.o fet.o rf2500.o dis.o uif.o ihex.o elf32.o stab.o util.o \
bsl.o sim.o symmap.o gdb.o btree.o device.o rtools.o sym.o
bsl.o sim.o symmap.o gdb.o btree.o device.o rtools.o sym.o devcmd.o
$(CC) $(LDFLAGS) -o $@ $^ -lusb $(READLINE_LIBS)
.c.o:

10
bsl.c
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@ -307,6 +307,9 @@ static int enter_via_fet(void)
const struct device *bsl_open(const char *device)
{
char idtext[64];
u_int16_t id;
serial_fd = open_serial(device, B460800);
if (serial_fd < 0) {
fprintf(stderr, "bsl: can't open %s: %s\n",
@ -330,7 +333,12 @@ const struct device *bsl_open(const char *device)
return NULL;
}
print_devid((reply_buf[4] << 8) | reply_buf[5]);
id = (reply_buf[4] << 8) | reply_buf[5];
if (find_device_id(id, idtext, sizeof(idtext)) < 0)
printf("Unknown device ID: 0x%04x\n", id);
else
printf("Device: %s\n", idtext);
printf("BSL version is %x.%02x\n", reply_buf[14], reply_buf[15]);
return &bsl_device;
}

653
devcmd.c Normal file
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@ -0,0 +1,653 @@
/* MSPDebug - debugging tool for the eZ430
* Copyright (C) 2009, 2010 Daniel Beer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include "device.h"
#include "binfile.h"
#include "stab.h"
#include "util.h"
#include "dis.h"
#define REG_COLUMNS 4
#define REG_ROWS ((DEVICE_NUM_REGS + REG_COLUMNS - 1) / REG_COLUMNS)
static void show_regs(u_int16_t *regs)
{
int i;
for (i = 0; i < REG_ROWS; i++) {
int j;
printf(" ");
for (j = 0; j < REG_COLUMNS; j++) {
int k = j * REG_ROWS + i;
if (k < DEVICE_NUM_REGS)
printf("(r%02d: %04x) ", k, regs[k]);
}
printf("\n");
}
}
static int cmd_regs(char **arg)
{
u_int16_t regs[DEVICE_NUM_REGS];
u_int8_t code[16];
if (device_get()->getregs(regs) < 0)
return -1;
show_regs(regs);
/* Try to disassemble the instruction at PC */
if (device_get()->readmem(regs[0], code, sizeof(code)) < 0)
return 0;
disassemble(regs[0], (u_int8_t *)code, sizeof(code));
return 0;
}
static struct command command_regs = {
.name = "regs",
.func = cmd_regs,
.help =
"regs\n"
" Read and display the current register contents.\n"
};
static int cmd_md(char **arg)
{
char *off_text = get_arg(arg);
char *len_text = get_arg(arg);
int offset = 0;
int length = 0x40;
if (!off_text) {
fprintf(stderr, "md: offset must be specified\n");
return -1;
}
if (addr_exp(off_text, &offset) < 0) {
fprintf(stderr, "md: can't parse offset: %s\n", off_text);
return -1;
}
if (len_text) {
if (addr_exp(len_text, &length) < 0) {
fprintf(stderr, "md: can't parse length: %s\n",
len_text);
return -1;
}
} else if (offset + length > 0x10000) {
length = 0x10000 - offset;
}
if (offset < 0 || length <= 0 || (offset + length) > 0x10000) {
fprintf(stderr, "md: memory out of range\n");
return -1;
}
while (length) {
u_int8_t buf[128];
int blen = length > sizeof(buf) ? sizeof(buf) : length;
if (device_get()->readmem(offset, buf, blen) < 0)
return -1;
hexdump(offset, buf, blen);
offset += blen;
length -= blen;
}
return 0;
}
static struct command command_md = {
.name = "md",
.func = cmd_md,
.help =
"md <address> [length]\n"
" Read the specified number of bytes from memory at the given\n"
" address, and display a hexdump.\n"
};
static int cmd_mw(char **arg)
{
char *off_text = get_arg(arg);
char *byte_text;
int offset = 0;
int length = 0;
u_int8_t buf[1024];
if (!off_text) {
fprintf(stderr, "md: offset must be specified\n");
return -1;
}
if (addr_exp(off_text, &offset) < 0) {
fprintf(stderr, "md: can't parse offset: %s\n", off_text);
return -1;
}
while ((byte_text = get_arg(arg))) {
if (length >= sizeof(buf)) {
fprintf(stderr, "md: maximum length exceeded\n");
return -1;
}
buf[length++] = strtoul(byte_text, NULL, 16);
}
if (!length)
return 0;
if (offset < 0 || (offset + length) > 0x10000) {
fprintf(stderr, "md: memory out of range\n");
return -1;
}
if (device_get()->writemem(offset, buf, length) < 0)
return -1;
return 0;
}
static struct command command_mw = {
.name = "mw",
.func = cmd_mw,
.help =
"mw <address> bytes ...\n"
" Write a sequence of bytes to a memory address. Byte values are\n"
" two-digit hexadecimal numbers.\n"
};
static int cmd_reset(char **arg)
{
return device_get()->control(DEVICE_CTL_RESET);
}
static struct command command_reset = {
.name = "reset",
.func = cmd_reset,
.help =
"reset\n"
" Reset (and halt) the CPU.\n"
};
static int cmd_erase(char **arg)
{
if (device_get()->control(DEVICE_CTL_HALT) < 0)
return -1;
printf("Erasing...\n");
return device_get()->control(DEVICE_CTL_ERASE);
}
static struct command command_erase = {
.name = "erase",
.func = cmd_erase,
.help =
"erase\n"
" Erase the device under test.\n"
};
static int cmd_step(char **arg)
{
char *count_text = get_arg(arg);
int count = 1;
if (count_text)
count = atoi(count_text);
while (count > 0) {
if (device_get()->control(DEVICE_CTL_STEP) < 0)
return -1;
count--;
}
return cmd_regs(NULL);
}
static struct command command_step = {
.name = "step",
.func = cmd_step,
.help =
"step [count]\n"
" Single-step the CPU, and display the register state.\n"
};
static int cmd_run(char **arg)
{
char *bp_text = get_arg(arg);
int bp_addr;
device_status_t status;
if (bp_text) {
if (addr_exp(bp_text, &bp_addr) < 0) {
fprintf(stderr, "run: can't parse breakpoint: %s\n",
bp_text);
return -1;
}
device_get()->breakpoint(bp_addr);
}
if (device_get()->control(bp_text ?
DEVICE_CTL_RUN_BP : DEVICE_CTL_RUN) < 0)
return -1;
if (bp_text)
printf("Running to 0x%04x.", bp_addr);
else
printf("Running.");
printf(" Press Ctrl+C to interrupt...\n");
status = device_get()->wait(1);
if (status == DEVICE_STATUS_INTR)
printf("\n");
if (device_get()->control(DEVICE_CTL_HALT) < 0)
return -1;
return cmd_regs(NULL);
}
static struct command command_run = {
.name = "run",
.func = cmd_run,
.help =
"run [breakpoint]\n"
" Run the CPU until either a specified breakpoint occurs or the\n"
" command is interrupted.\n"
};
static int cmd_set(char **arg)
{
char *reg_text = get_arg(arg);
char *val_text = get_arg(arg);
int reg;
int value = 0;
u_int16_t regs[DEVICE_NUM_REGS];
if (!(reg_text && val_text)) {
fprintf(stderr, "set: must specify a register and a value\n");
return -1;
}
while (*reg_text && !isdigit(*reg_text))
reg_text++;
reg = atoi(reg_text);
if (addr_exp(val_text, &value) < 0) {
fprintf(stderr, "set: can't parse value: %s\n", val_text);
return -1;
}
if (reg < 0 || reg >= DEVICE_NUM_REGS) {
fprintf(stderr, "set: register out of range: %d\n", reg);
return -1;
}
if (device_get()->getregs(regs) < 0)
return -1;
regs[reg] = value;
if (device_get()->setregs(regs) < 0)
return -1;
show_regs(regs);
return 0;
}
static struct command command_set = {
.name = "set",
.func = cmd_set,
.help =
"set <register> <value>\n"
" Change the value of a CPU register.\n"
};
static int cmd_dis(char **arg)
{
char *off_text = get_arg(arg);
char *len_text = get_arg(arg);
int offset = 0;
int length = 0x40;
u_int8_t buf[4096];
if (!off_text) {
fprintf(stderr, "dis: offset must be specified\n");
return -1;
}
if (addr_exp(off_text, &offset) < 0) {
fprintf(stderr, "dis: can't parse offset: %s\n", off_text);
return -1;
}
if (len_text) {
if (addr_exp(len_text, &length) < 0) {
fprintf(stderr, "dis: can't parse length: %s\n",
len_text);
return -1;
}
} else if (offset + length > 0x10000) {
length = 0x10000 - offset;
}
if (offset < 0 || length <= 0 || length > sizeof(buf) ||
(offset + length) > 0x10000) {
fprintf(stderr, "dis: memory out of range\n");
return -1;
}
if (device_get()->readmem(offset, buf, length) < 0)
return -1;
disassemble(offset, (u_int8_t *)buf, length);
return 0;
}
static struct command command_dis = {
.name = "dis",
.func = cmd_dis,
.help =
"dis <address> [length]\n"
" Disassemble a section of memory.\n"
};
static FILE *hexout_file;
static u_int16_t hexout_addr;
static u_int8_t hexout_buf[16];
static int hexout_len;
static int hexout_start(const char *filename)
{
hexout_file = fopen(filename, "w");
if (!hexout_file) {
perror("hexout: couldn't open output file");
return -1;
}
return 0;
}
static int hexout_flush(void)
{
int i;
int cksum = 0;
if (!hexout_len)
return 0;
if (fprintf(hexout_file, ":%02X%04X00", hexout_len, hexout_addr) < 0)
goto fail;
cksum += hexout_len;
cksum += hexout_addr & 0xff;
cksum += hexout_addr >> 8;
for (i = 0; i < hexout_len; i++) {
if (fprintf(hexout_file, "%02X", hexout_buf[i]) < 0)
goto fail;
cksum += hexout_buf[i];
}
if (fprintf(hexout_file, "%02X\n", ~(cksum - 1) & 0xff) < 0)
goto fail;
hexout_len = 0;
return 0;
fail:
perror("hexout: can't write HEX data");
return -1;
}
static int hexout_feed(u_int16_t addr, const u_int8_t *buf, int len)
{
while (len) {
int count;
if ((hexout_addr + hexout_len != addr ||
hexout_len >= sizeof(hexout_buf)) &&
hexout_flush() < 0)
return -1;
if (!hexout_len)
hexout_addr = addr;
count = sizeof(hexout_buf) - hexout_len;
if (count > len)
count = len;
memcpy(hexout_buf + hexout_len, buf, count);
hexout_len += count;
addr += count;
buf += count;
len -= count;
}
return 0;
}
static int cmd_hexout(char **arg)
{
char *off_text = get_arg(arg);
char *len_text = get_arg(arg);
char *filename = *arg;
int off;
int length;
if (!(off_text && len_text && *filename)) {
fprintf(stderr, "hexout: need offset, length and filename\n");
return -1;
}
if (addr_exp(off_text, &off) < 0 ||
addr_exp(len_text, &length) < 0)
return -1;
if (hexout_start(filename) < 0)
return -1;
while (length) {
u_int8_t buf[128];
int count = length;
if (count > sizeof(buf))
count = sizeof(buf);
printf("Reading %d bytes from 0x%04x...\n", count, off);
if (device_get()->readmem(off, buf, count) < 0) {
perror("hexout: can't read memory");
goto fail;
}
if (hexout_feed(off, buf, count) < 0)
goto fail;
length -= count;
off += count;
}
if (hexout_flush() < 0)
goto fail;
if (fclose(hexout_file) < 0) {
perror("hexout: error on close");
return -1;
}
return 0;
fail:
fclose(hexout_file);
unlink(filename);
return -1;
}
static struct command command_hexout = {
.name = "hexout",
.func = cmd_hexout,
.help =
"hexout <address> <length> <filename.hex>\n"
" Save a region of memory into a HEX file.\n"
};
static u_int8_t prog_buf[128];
static u_int16_t prog_addr;
static int prog_len;
static int prog_have_erased;
static void prog_init(void)
{
prog_len = 0;
prog_have_erased = 0;
}
static int prog_flush(void)
{
while (prog_len) {
int wlen = prog_len;
/* Writing across this address seems to cause a hang */
if (prog_addr < 0x999a && wlen + prog_addr > 0x999a)
wlen = 0x999a - prog_addr;
if (!prog_have_erased) {
printf("Erasing...\n");
if (device_get()->control(DEVICE_CTL_ERASE) < 0)
return -1;
prog_have_erased = 1;
}
printf("Writing %3d bytes to %04x...\n", wlen, prog_addr);
if (device_get()->writemem(prog_addr, prog_buf, wlen) < 0)
return -1;
memmove(prog_buf, prog_buf + wlen, prog_len - wlen);
prog_len -= wlen;
prog_addr += wlen;
}
return 0;
}
static int prog_feed(u_int16_t addr, const u_int8_t *data, int len)
{
/* Flush if this section is discontiguous */
if (prog_len && prog_addr + prog_len != addr && prog_flush() < 0)
return -1;
if (!prog_len)
prog_addr = addr;
/* Add the buffer in piece by piece, flushing when it gets
* full.
*/
while (len) {
int count = sizeof(prog_buf) - prog_len;
if (count > len)
count = len;
if (!count) {
if (prog_flush() < 0)
return -1;
} else {
memcpy(prog_buf + prog_len, data, count);
prog_len += count;
data += count;
len -= count;
}
}
return 0;
}
static int cmd_prog(char **arg)
{
FILE *in;
int result = 0;
if (modify_prompt(MODIFY_SYMS))
return 0;
in = fopen(*arg, "r");
if (!in) {
fprintf(stderr, "prog: %s: %s\n", *arg, strerror(errno));
return -1;
}
if (device_get()->control(DEVICE_CTL_HALT) < 0) {
fclose(in);
return -1;
}
prog_init();
if (elf32_check(in)) {
result = elf32_extract(in, prog_feed);
stab_clear();
elf32_syms(in, stab_set);
} else if (ihex_check(in)) {
result = ihex_extract(in, prog_feed);
} else {
fprintf(stderr, "prog: %s: unknown file type\n", *arg);
}
fclose(in);
if (prog_flush() < 0)
return -1;
if (device_get()->control(DEVICE_CTL_RESET) < 0) {
fprintf(stderr, "prog: failed to reset after programming\n");
return -1;
}
modify_clear(MODIFY_SYMS);
return result;
}
static struct command command_prog = {
.name = "prog",
.func = cmd_prog,
.help =
"prog <filename>\n"
" Erase the device and flash the data contained in a binary file.\n"
" This command also loads symbols from the file, if available.\n"
};
void devcmd_init(void)
{
register_command(&command_md);
register_command(&command_mw);
register_command(&command_reset);
register_command(&command_erase);
register_command(&command_regs);
register_command(&command_run);
register_command(&command_step);
register_command(&command_set);
register_command(&command_dis);
register_command(&command_hexout);
register_command(&command_prog);
}

25
devcmd.h Normal file
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@ -0,0 +1,25 @@
/* MSPDebug - debugging tool for the eZ430
* Copyright (C) 2009, 2010 Daniel Beer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DEVCMD_H_
#define DEVCMD_H_
/* Register device commands */
void devcmd_init(void);
#endif

692
device.c
View File

@ -30,639 +30,79 @@
static const struct device *msp430_dev;
#define REG_COLUMNS 4
#define REG_ROWS ((DEVICE_NUM_REGS + REG_COLUMNS - 1) / REG_COLUMNS)
static void show_regs(u_int16_t *regs)
{
int i;
for (i = 0; i < REG_ROWS; i++) {
int j;
printf(" ");
for (j = 0; j < REG_COLUMNS; j++) {
int k = j * REG_ROWS + i;
if (k < DEVICE_NUM_REGS)
printf("(r%02d: %04x) ", k, regs[k]);
}
printf("\n");
}
}
static int cmd_regs(char **arg)
{
u_int16_t regs[DEVICE_NUM_REGS];
u_int8_t code[16];
if (msp430_dev->getregs(regs) < 0)
return -1;
show_regs(regs);
/* Try to disassemble the instruction at PC */
if (msp430_dev->readmem(regs[0], code, sizeof(code)) < 0)
return 0;
disassemble(regs[0], (u_int8_t *)code, sizeof(code));
return 0;
}
static struct command command_regs = {
.name = "regs",
.func = cmd_regs,
.help =
"regs\n"
" Read and display the current register contents.\n"
};
static int cmd_md(char **arg)
{
char *off_text = get_arg(arg);
char *len_text = get_arg(arg);
int offset = 0;
int length = 0x40;
if (!off_text) {
fprintf(stderr, "md: offset must be specified\n");
return -1;
}
if (addr_exp(off_text, &offset) < 0) {
fprintf(stderr, "md: can't parse offset: %s\n", off_text);
return -1;
}
if (len_text) {
if (addr_exp(len_text, &length) < 0) {
fprintf(stderr, "md: can't parse length: %s\n",
len_text);
return -1;
}
} else if (offset + length > 0x10000) {
length = 0x10000 - offset;
}
if (offset < 0 || length <= 0 || (offset + length) > 0x10000) {
fprintf(stderr, "md: memory out of range\n");
return -1;
}
while (length) {
u_int8_t buf[128];
int blen = length > sizeof(buf) ? sizeof(buf) : length;
if (msp430_dev->readmem(offset, buf, blen) < 0)
return -1;
hexdump(offset, buf, blen);
offset += blen;
length -= blen;
}
return 0;
}
static struct command command_md = {
.name = "md",
.func = cmd_md,
.help =
"md <address> [length]\n"
" Read the specified number of bytes from memory at the given\n"
" address, and display a hexdump.\n"
};
static int cmd_mw(char **arg)
{
char *off_text = get_arg(arg);
char *byte_text;
int offset = 0;
int length = 0;
u_int8_t buf[1024];
if (!off_text) {
fprintf(stderr, "md: offset must be specified\n");
return -1;
}
if (addr_exp(off_text, &offset) < 0) {
fprintf(stderr, "md: can't parse offset: %s\n", off_text);
return -1;
}
while ((byte_text = get_arg(arg))) {
if (length >= sizeof(buf)) {
fprintf(stderr, "md: maximum length exceeded\n");
return -1;
}
buf[length++] = strtoul(byte_text, NULL, 16);
}
if (!length)
return 0;
if (offset < 0 || (offset + length) > 0x10000) {
fprintf(stderr, "md: memory out of range\n");
return -1;
}
if (msp430_dev->writemem(offset, buf, length) < 0)
return -1;
return 0;
}
static struct command command_mw = {
.name = "mw",
.func = cmd_mw,
.help =
"mw <address> bytes ...\n"
" Write a sequence of bytes to a memory address. Byte values are\n"
" two-digit hexadecimal numbers.\n"
};
static int cmd_reset(char **arg)
{
return msp430_dev->control(DEVICE_CTL_RESET);
}
static struct command command_reset = {
.name = "reset",
.func = cmd_reset,
.help =
"reset\n"
" Reset (and halt) the CPU.\n"
};
static int cmd_erase(char **arg)
{
if (msp430_dev->control(DEVICE_CTL_HALT) < 0)
return -1;
printf("Erasing...\n");
return msp430_dev->control(DEVICE_CTL_ERASE);
}
static struct command command_erase = {
.name = "erase",
.func = cmd_erase,
.help =
"erase\n"
" Erase the device under test.\n"
};
static int cmd_step(char **arg)
{
char *count_text = get_arg(arg);
int count = 1;
if (count_text)
count = atoi(count_text);
while (count > 0) {
if (msp430_dev->control(DEVICE_CTL_STEP) < 0)
return -1;
count--;
}
return cmd_regs(NULL);
}
static struct command command_step = {
.name = "step",
.func = cmd_step,
.help =
"step [count]\n"
" Single-step the CPU, and display the register state.\n"
};
static int cmd_run(char **arg)
{
char *bp_text = get_arg(arg);
int bp_addr;
device_status_t status;
if (bp_text) {
if (addr_exp(bp_text, &bp_addr) < 0) {
fprintf(stderr, "run: can't parse breakpoint: %s\n",
bp_text);
return -1;
}
msp430_dev->breakpoint(bp_addr);
}
if (msp430_dev->control(bp_text ?
DEVICE_CTL_RUN_BP : DEVICE_CTL_RUN) < 0)
return -1;
if (bp_text)
printf("Running to 0x%04x.", bp_addr);
else
printf("Running.");
printf(" Press Ctrl+C to interrupt...\n");
status = msp430_dev->wait(1);
if (status == DEVICE_STATUS_INTR)
printf("\n");
if (msp430_dev->control(DEVICE_CTL_HALT) < 0)
return -1;
return cmd_regs(NULL);
}
static struct command command_run = {
.name = "run",
.func = cmd_run,
.help =
"run [breakpoint]\n"
" Run the CPU until either a specified breakpoint occurs or the\n"
" command is interrupted.\n"
};
static int cmd_set(char **arg)
{
char *reg_text = get_arg(arg);
char *val_text = get_arg(arg);
int reg;
int value = 0;
u_int16_t regs[DEVICE_NUM_REGS];
if (!(reg_text && val_text)) {
fprintf(stderr, "set: must specify a register and a value\n");
return -1;
}
while (*reg_text && !isdigit(*reg_text))
reg_text++;
reg = atoi(reg_text);
if (addr_exp(val_text, &value) < 0) {
fprintf(stderr, "set: can't parse value: %s\n", val_text);
return -1;
}
if (reg < 0 || reg >= DEVICE_NUM_REGS) {
fprintf(stderr, "set: register out of range: %d\n", reg);
return -1;
}
if (msp430_dev->getregs(regs) < 0)
return -1;
regs[reg] = value;
if (msp430_dev->setregs(regs) < 0)
return -1;
show_regs(regs);
return 0;
}
static struct command command_set = {
.name = "set",
.func = cmd_set,
.help =
"set <register> <value>\n"
" Change the value of a CPU register.\n"
};
static int cmd_dis(char **arg)
{
char *off_text = get_arg(arg);
char *len_text = get_arg(arg);
int offset = 0;
int length = 0x40;
u_int8_t buf[4096];
if (!off_text) {
fprintf(stderr, "dis: offset must be specified\n");
return -1;
}
if (addr_exp(off_text, &offset) < 0) {
fprintf(stderr, "dis: can't parse offset: %s\n", off_text);
return -1;
}
if (len_text) {
if (addr_exp(len_text, &length) < 0) {
fprintf(stderr, "dis: can't parse length: %s\n",
len_text);
return -1;
}
} else if (offset + length > 0x10000) {
length = 0x10000 - offset;
}
if (offset < 0 || length <= 0 || length > sizeof(buf) ||
(offset + length) > 0x10000) {
fprintf(stderr, "dis: memory out of range\n");
return -1;
}
if (msp430_dev->readmem(offset, buf, length) < 0)
return -1;
disassemble(offset, (u_int8_t *)buf, length);
return 0;
}
static struct command command_dis = {
.name = "dis",
.func = cmd_dis,
.help =
"dis <address> [length]\n"
" Disassemble a section of memory.\n"
};
static FILE *hexout_file;
static u_int16_t hexout_addr;
static u_int8_t hexout_buf[16];
static int hexout_len;
static int hexout_start(const char *filename)
{
hexout_file = fopen(filename, "w");
if (!hexout_file) {
perror("hexout: couldn't open output file");
return -1;
}
return 0;
}
static int hexout_flush(void)
{
int i;
int cksum = 0;
if (!hexout_len)
return 0;
if (fprintf(hexout_file, ":%02X%04X00", hexout_len, hexout_addr) < 0)
goto fail;
cksum += hexout_len;
cksum += hexout_addr & 0xff;
cksum += hexout_addr >> 8;
for (i = 0; i < hexout_len; i++) {
if (fprintf(hexout_file, "%02X", hexout_buf[i]) < 0)
goto fail;
cksum += hexout_buf[i];
}
if (fprintf(hexout_file, "%02X\n", ~(cksum - 1) & 0xff) < 0)
goto fail;
hexout_len = 0;
return 0;
fail:
perror("hexout: can't write HEX data");
return -1;
}
static int hexout_feed(u_int16_t addr, const u_int8_t *buf, int len)
{
while (len) {
int count;
if ((hexout_addr + hexout_len != addr ||
hexout_len >= sizeof(hexout_buf)) &&
hexout_flush() < 0)
return -1;
if (!hexout_len)
hexout_addr = addr;
count = sizeof(hexout_buf) - hexout_len;
if (count > len)
count = len;
memcpy(hexout_buf + hexout_len, buf, count);
hexout_len += count;
addr += count;
buf += count;
len -= count;
}
return 0;
}
static int cmd_hexout(char **arg)
{
char *off_text = get_arg(arg);
char *len_text = get_arg(arg);
char *filename = *arg;
int off;
int length;
if (!(off_text && len_text && *filename)) {
fprintf(stderr, "hexout: need offset, length and filename\n");
return -1;
}
if (addr_exp(off_text, &off) < 0 ||
addr_exp(len_text, &length) < 0)
return -1;
if (hexout_start(filename) < 0)
return -1;
while (length) {
u_int8_t buf[128];
int count = length;
if (count > sizeof(buf))
count = sizeof(buf);
printf("Reading %d bytes from 0x%04x...\n", count, off);
if (msp430_dev->readmem(off, buf, count) < 0) {
perror("hexout: can't read memory");
goto fail;
}
if (hexout_feed(off, buf, count) < 0)
goto fail;
length -= count;
off += count;
}
if (hexout_flush() < 0)
goto fail;
if (fclose(hexout_file) < 0) {
perror("hexout: error on close");
return -1;
}
return 0;
fail:
fclose(hexout_file);
unlink(filename);
return -1;
}
static struct command command_hexout = {
.name = "hexout",
.func = cmd_hexout,
.help =
"hexout <address> <length> <filename.hex>\n"
" Save a region of memory into a HEX file.\n"
};
static u_int8_t prog_buf[128];
static u_int16_t prog_addr;
static int prog_len;
static int prog_have_erased;
static void prog_init(void)
{
prog_len = 0;
prog_have_erased = 0;
}
static int prog_flush(void)
{
while (prog_len) {
int wlen = prog_len;
/* Writing across this address seems to cause a hang */
if (prog_addr < 0x999a && wlen + prog_addr > 0x999a)
wlen = 0x999a - prog_addr;
if (!prog_have_erased) {
printf("Erasing...\n");
if (device_active()->control(DEVICE_CTL_ERASE) < 0)
return -1;
prog_have_erased = 1;
}
printf("Writing %3d bytes to %04x...\n", wlen, prog_addr);
if (device_active()->writemem(prog_addr, prog_buf, wlen) < 0)
return -1;
memmove(prog_buf, prog_buf + wlen, prog_len - wlen);
prog_len -= wlen;
prog_addr += wlen;
}
return 0;
}
static int prog_feed(u_int16_t addr, const u_int8_t *data, int len)
{
/* Flush if this section is discontiguous */
if (prog_len && prog_addr + prog_len != addr && prog_flush() < 0)
return -1;
if (!prog_len)
prog_addr = addr;
/* Add the buffer in piece by piece, flushing when it gets
* full.
*/
while (len) {
int count = sizeof(prog_buf) - prog_len;
if (count > len)
count = len;
if (!count) {
if (prog_flush() < 0)
return -1;
} else {
memcpy(prog_buf + prog_len, data, count);
prog_len += count;
data += count;
len -= count;
}
}
return 0;
}
static int cmd_prog(char **arg)
{
FILE *in;
int result = 0;
if (modify_prompt(MODIFY_SYMS))
return 0;
in = fopen(*arg, "r");
if (!in) {
fprintf(stderr, "prog: %s: %s\n", *arg, strerror(errno));
return -1;
}
if (device_active()->control(DEVICE_CTL_HALT) < 0) {
fclose(in);
return -1;
}
prog_init();
if (elf32_check(in)) {
result = elf32_extract(in, prog_feed);
stab_clear();
elf32_syms(in, stab_set);
} else if (ihex_check(in)) {
result = ihex_extract(in, prog_feed);
} else {
fprintf(stderr, "prog: %s: unknown file type\n", *arg);
}
fclose(in);
if (prog_flush() < 0)
return -1;
if (device_active()->control(DEVICE_CTL_RESET) < 0) {
fprintf(stderr, "prog: failed to reset after programming\n");
return -1;
}
modify_clear(MODIFY_SYMS);
return result;
}
static struct command command_prog = {
.name = "prog",
.func = cmd_prog,
.help =
"prog <filename>\n"
" Erase the device and flash the data contained in a binary file.\n"
" This command also loads symbols from the file, if available.\n"
};
void device_init(const struct device *dev)
void device_set(const struct device *dev)
{
msp430_dev = dev;
register_command(&command_md);
register_command(&command_mw);
register_command(&command_reset);
register_command(&command_erase);
register_command(&command_regs);
register_command(&command_run);
register_command(&command_step);
register_command(&command_set);
register_command(&command_dis);
register_command(&command_hexout);
register_command(&command_prog);
}
const struct device *device_active(void)
const struct device *device_get(void)
{
return msp430_dev;
}
void device_exit(void)
/* This table of device IDs is sourced mainly from the MSP430 Memory
* Programming User's Guide (SLAU265).
*
* The table should be kept sorted by device ID.
*/
static struct {
u_int16_t id;
const char *id_text;
} id_table[] = {
{0x1132, "F1122"},
{0x1132, "F1132"},
{0x1232, "F1222"},
{0x1232, "F1232"},
{0xF112, "F11x"}, /* obsolete */
{0xF112, "F11x1"}, /* obsolete */
{0xF112, "F11x1A"}, /* obsolete */
{0xF123, "F122"},
{0xF123, "F123x"},
{0xF143, "F14x"},
{0xF149, "F13x"},
{0xF149, "F14x1"},
{0xF149, "F149"},
{0xF169, "F16x"},
{0xF16C, "F161x"},
{0xF201, "F20x3"},
{0xF213, "F21x1"},
{0xF227, "F22xx"},
{0xF249, "F24x"},
{0xF26F, "F261x"},
{0xF413, "F41x"},
{0xF427, "FE42x"},
{0xF427, "FW42x"},
{0xF427, "F415"},
{0xF427, "F417"},
{0xF427, "F42x0"},
{0xF439, "FG43x"},
{0xF449, "F43x"},
{0xF449, "F44x"},
{0xF46F, "FG46xx"},
{0xF46F, "F471xx"}
};
int find_device_id(u_int16_t id, char *out, int max_len)
{
if (msp430_dev)
msp430_dev->close();
int i = 0;
int len;
while (i < ARRAY_LEN(id_table) && id_table[i].id != id)
i++;
if (i >= ARRAY_LEN(id_table))
return -1;
len = snprintf(out, max_len, "MSP430%s", id_table[i++].id_text);
out += len;
max_len -= len;
while (id_table[i].id == id) {
len = snprintf(out, max_len, "MSP430%s", id_table[i++].id_text);
out += len;
max_len -= len;
}
return 0;
}

10
device.h
View File

@ -64,9 +64,11 @@ const struct device *bsl_open(const char *device);
/* Dummy/simulation implementation. */
const struct device *sim_open(void);
/* Register device commands */
void device_init(const struct device *dev);
void device_exit(void);
const struct device *device_active(void);
/* Look up a device ID. Returns 0 on success or -1 if none found */
int find_device_id(u_int16_t id, char *out, int max_len);
/* Set/get the active device */
void device_set(const struct device *dev);
const struct device *device_get(void);
#endif

28
dis.c
View File

@ -697,6 +697,20 @@ static void dis_format(const struct msp430_instruction *insn)
insn->dst_reg);
}
int dis_opcode_by_name(const char *name, msp430_op_t *op)
{
int i;
for (i = 0; i < ARRAY_LEN(opcode_names); i++)
if (!strcasecmp(name, opcode_names[i].mnemonic)) {
if (op)
*op = opcode_names[i].op;
return 0;
}
return -1;
}
void disassemble(u_int16_t offset, u_int8_t *data, int length)
{
int first_line = 1;
@ -746,17 +760,3 @@ void disassemble(u_int16_t offset, u_int8_t *data, int length)
data += count;
}
}
int dis_opcode_by_name(const char *name, msp430_op_t *op)
{
int i;
for (i = 0; i < ARRAY_LEN(opcode_names); i++)
if (!strcasecmp(name, opcode_names[i].mnemonic)) {
if (op)
*op = opcode_names[i].op;
return 0;
}
return -1;
}

6
dis.h
View File

@ -205,10 +205,10 @@ struct msp430_instruction {
int dis_decode(u_int8_t *code, u_int16_t offset, u_int16_t len,
struct msp430_instruction *insn);
/* Print a disassembly on stdout */
void disassemble(u_int16_t offset, u_int8_t *buf, int length);
/* Look up an opcode by name. Returns 0 if successful, -1 otherwise. */
int dis_opcode_by_name(const char *name, msp430_op_t *op);
/* Print a disassembly on stdout */
void disassemble(u_int16_t offset, u_int8_t *buf, int length);
#endif

34
fet.c
View File

@ -515,9 +515,9 @@ static int fet_version;
static int do_identify(void)
{
if (fet_version < 20300000) {
char idtext[64];
char idtext[64];
if (fet_version < 20300000) {
if (xfer(C_IDENTIFY, NULL, 0, 2, 70, 0) < 0)
return -1;
@ -528,19 +528,27 @@ static int do_identify(void)
memcpy(idtext, fet_reply.data + 4, 32);
idtext[32] = 0;
printf("Device: %s\n", idtext);
return 0;
} else {
u_int16_t id;
if (xfer(0x28, NULL, 0, 2, 0, 0) < 0) {
fprintf(stderr, "fet: command 0x28 failed\n");
return -1;
}
if (fet_reply.datalen < 2) {
fprintf(stderr, "fet: missing info\n");
return -1;
}
id = (fet_reply.data[0] << 8) | fet_reply.data[1];
if (find_device_id(id, idtext, sizeof(idtext)) < 0) {
printf("Unknown device ID: 0x%04x\n", id);
return 0;
}
}
if (xfer(0x28, NULL, 0, 2, 0, 0) < 0)
return -1;
if (fet_reply.datalen < 2) {
fprintf(stderr, "fet: missing info\n");
return -1;
}
print_devid((fet_reply.data[0] << 8) | fet_reply.data[1]);
printf("Device: %s\n", idtext);
return 0;
}

26
gdb.c
View File

@ -207,7 +207,7 @@ static int read_registers(void)
int i;
printf("Reading registers\n");
if (device_active()->getregs(regs) < 0)
if (device_get()->getregs(regs) < 0)
return gdb_send("E00");
gdb_packet_start();
@ -229,11 +229,11 @@ static int monitor_command(char *buf)
if (!strcasecmp(cmd, "reset")) {
printf("Resetting device\n");
if (device_active()->control(DEVICE_CTL_RESET) < 0)
if (device_get()->control(DEVICE_CTL_RESET) < 0)
return gdb_send_hex("Reset failed\n");
} else if (!strcasecmp(cmd, "erase")) {
printf("Erasing device\n");
if (device_active()->control(DEVICE_CTL_ERASE) < 0)
if (device_get()->control(DEVICE_CTL_ERASE) < 0)
return gdb_send_hex("Erase failed\n");
}
@ -257,7 +257,7 @@ static int write_registers(char *buf)
buf += 4;
}
if (device_active()->setregs(regs) < 0)
if (device_get()->setregs(regs) < 0)
return gdb_send("E00");
return gdb_send("OK");
@ -285,7 +285,7 @@ static int read_memory(char *text)
printf("Reading %d bytes from 0x%04x\n", length, addr);
if (device_active()->readmem(addr, buf, length) < 0)
if (device_get()->readmem(addr, buf, length) < 0)
return gdb_send("E00");
gdb_packet_start();
@ -328,7 +328,7 @@ static int write_memory(char *text)
printf("Writing %d bytes to 0x%04x\n", buflen, addr);
if (device_active()->writemem(addr, buf, buflen) < 0)
if (device_get()->writemem(addr, buf, buflen) < 0)
return gdb_send("E00");
return gdb_send("OK");
@ -341,11 +341,11 @@ static int run_set_pc(char *buf)
if (!*buf)
return 0;
if (device_active()->getregs(regs) < 0)
if (device_get()->getregs(regs) < 0)
return -1;
regs[0] = strtoul(buf, NULL, 16);
return device_active()->setregs(regs);
return device_get()->setregs(regs);
}
static int run_final_status(void)
@ -353,7 +353,7 @@ static int run_final_status(void)
u_int16_t regs[DEVICE_NUM_REGS];
int i;
if (device_active()->getregs(regs) < 0)
if (device_get()->getregs(regs) < 0)
return gdb_send("E00");
gdb_packet_start();
@ -370,7 +370,7 @@ static int single_step(char *buf)
printf("Single stepping\n");
if (run_set_pc(buf) < 0 ||
device_active()->control(DEVICE_CTL_STEP) < 0)
device_get()->control(DEVICE_CTL_STEP) < 0)
gdb_send("E00");
return run_final_status();
@ -381,13 +381,13 @@ static int run(char *buf)
printf("Running\n");
if (run_set_pc(buf) < 0 ||
device_active()->control(DEVICE_CTL_RUN) < 0) {
device_get()->control(DEVICE_CTL_RUN) < 0) {
gdb_send("E00");
return run_final_status();
}
for (;;) {
device_status_t status = device_active()->wait(0);
device_status_t status = device_get()->wait(0);
if (status == DEVICE_STATUS_ERROR) {
gdb_send("E00");
@ -416,7 +416,7 @@ static int run(char *buf)
}
out:
if (device_active()->control(DEVICE_CTL_HALT) < 0)
if (device_get()->control(DEVICE_CTL_HALT) < 0)
gdb_send("E00");
return run_final_status();

17
main.c
View File

@ -31,6 +31,7 @@
#include "gdb.h"
#include "rtools.h"
#include "sym.h"
#include "devcmd.h"
static void usage(const char *progname)
{
@ -160,11 +161,6 @@ int main(int argc, char **argv)
if (stab_init() < 0)
return -1;
parse_init();
sym_init();
gdb_init();
rtools_init();
/* Open a device */
if (mode == MODE_SIM) {
msp430_dev = sim_open();
@ -194,7 +190,14 @@ int main(int argc, char **argv)
return -1;
}
device_init(msp430_dev);
/* Initialise parsing */
device_set(msp430_dev);
parse_init();
sym_init();
devcmd_init();
gdb_init();
rtools_init();
if (!no_rc)
process_rc_file();
@ -210,7 +213,7 @@ int main(int argc, char **argv)
reader_loop();
}
device_exit();
msp430_dev->close();
stab_exit();
return ret;

2
rtools.c
View File

@ -316,7 +316,7 @@ static int isearch_match(const struct msp430_instruction *insn,
static int do_isearch(int addr, int len, const struct isearch_query *q)
{
u_int8_t *mbuf;
const struct device *dev = device_active();
const struct device *dev = device_get();
int i;
if (len <= 0 || len > 0x10000 ||

2
sym.h
View File

@ -19,8 +19,6 @@
#ifndef SYM_H_
#define SYM_H_
#include <sys/types.h>
/* Register symbol-table manipulation commands */
void sym_init(void);

60
util.c
View File

@ -536,66 +536,6 @@ void hexdump(int addr, const u_int8_t *data, int len)
}
}
/* This table of device IDs is sourced mainly from the MSP430 Memory
* Programming User's Guide (SLAU265).
*
* The table should be kept sorted by device ID.
*/
static struct {
u_int16_t id;
const char *id_text;
} id_table[] = {
{0x1132, "F1122"},
{0x1132, "F1132"},
{0x1232, "F1222"},
{0x1232, "F1232"},
{0xF112, "F11x"}, /* obsolete */
{0xF112, "F11x1"}, /* obsolete */
{0xF112, "F11x1A"}, /* obsolete */
{0xF123, "F122"},
{0xF123, "F123x"},
{0xF143, "F14x"},
{0xF149, "F13x"},
{0xF149, "F14x1"},
{0xF149, "F149"},
{0xF169, "F16x"},
{0xF16C, "F161x"},
{0xF201, "F20x3"},
{0xF213, "F21x1"},
{0xF227, "F22xx"},
{0xF249, "F24x"},
{0xF26F, "F261x"},
{0xF413, "F41x"},
{0xF427, "FE42x"},
{0xF427, "FW42x"},
{0xF427, "F415"},
{0xF427, "F417"},
{0xF427, "F42x0"},
{0xF439, "FG43x"},
{0xF449, "F43x"},
{0xF449, "F44x"},
{0xF46F, "FG46xx"},
{0xF46F, "F471xx"}
};
void print_devid(u_int16_t id)
{
int i = 0;
while (i < ARRAY_LEN(id_table) && id_table[i].id != id)
i++;
if (i < ARRAY_LEN(id_table)) {
printf("Device: MSP430%s", id_table[i++].id_text);
while (id_table[i].id == id)
printf("/MSP430%s", id_table[i++].id_text);
printf("\n");
} else {
printf("Unknown device ID: 0x%04x\n", id);
}
}
int read_with_timeout(int fd, u_int8_t *data, int max_len)
{
int r;

2
util.h
View File

@ -121,8 +121,6 @@ void hexdump(int addr, const u_int8_t *data, int len);
#define ARRAY_LEN(a) (sizeof(a) / sizeof((a)[0]))
void print_devid(const u_int16_t id);
int open_serial(const char *device, int rate);
int read_with_timeout(int fd, u_int8_t *data, int len);
int write_all(int fd, const u_int8_t *data, int len);