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gdb: use stdio functions to convert parameters 

This reduces the number of gdb conversion routines we have to maintain.

Change-Id: Ia43d6cac86cbe4f76fe0875b9d9c16ac340296db
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1128
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
This commit is contained in:
Spencer Oliver 2013-03-07 16:00:45 +00:00 committed by Freddie Chopin
parent 7aaf4f75b3
commit 07dcd5648d
1 changed files with 9 additions and 23 deletions
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32
src/server/gdb_server.c
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@ -93,7 +93,6 @@ static enum breakpoint_type gdb_breakpoint_override_type;
static int gdb_error(struct connection *connection, int retval);
static const char *gdb_port;
static const char *gdb_port_next;
static const char DIGITS[16] = "0123456789abcdef";
static void gdb_log_callback(void *priv, const char *file, unsigned line,
const char *function, const char *string);
@ -379,18 +378,14 @@ static int gdb_put_packet_inner(struct connection *connection,
if ((size_t)len + 4 <= sizeof(local_buffer)) {
/* performance gain on smaller packets by only a single call to gdb_write() */
memcpy(local_buffer + 1, buffer, len++);
local_buffer[len++] = '#';
local_buffer[len++] = DIGITS[(my_checksum >> 4) & 0xf];
local_buffer[len++] = DIGITS[my_checksum & 0xf];
len += snprintf(local_buffer + len, sizeof(local_buffer) - len, "#%02x", my_checksum);
retval = gdb_write(connection, local_buffer, len);
if (retval != ERROR_OK)
return retval;
} else {
/* larger packets are transmitted directly from caller supplied buffer
* by several calls to gdb_write() to avoid dynamic allocation */
local_buffer[1] = '#';
local_buffer[2] = DIGITS[(my_checksum >> 4) & 0xf];
local_buffer[3] = DIGITS[my_checksum & 0xf];
snprintf(local_buffer + 1, sizeof(local_buffer) - 1, "#%02x", my_checksum);
retval = gdb_write(connection, local_buffer, 1);
if (retval != ERROR_OK)
return retval;
@ -900,7 +895,7 @@ static int gdb_last_signal_packet(struct connection *connection,
return ERROR_OK;
}
static int gdb_reg_pos(struct target *target, int pos, int len)
static inline int gdb_reg_pos(struct target *target, int pos, int len)
{
if (target->endianness == TARGET_LITTLE_ENDIAN)
return pos;
@ -929,22 +924,10 @@ static void gdb_str_to_target(struct target *target,
for (i = 0; i < buf_len; i++) {
int j = gdb_reg_pos(target, i, buf_len);
tstr[i*2] = DIGITS[(buf[j]>>4) & 0xf];
tstr[i*2 + 1] = DIGITS[buf[j]&0xf];
tstr += sprintf(tstr, "%02x", buf[j]);
}
}
static int hextoint(int c)
{
if (c >= '0' && c <= '9')
return c - '0';
c = toupper(c);
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
LOG_ERROR("BUG: invalid register value %08x", c);
return 0;
}
/* copy over in register buffer */
static void gdb_target_to_reg(struct target *target,
char *tstr, int str_len, uint8_t *bin)
@ -956,8 +939,11 @@ static void gdb_target_to_reg(struct target *target,
int i;
for (i = 0; i < str_len; i += 2) {
uint8_t t = hextoint(tstr[i]) << 4;
t |= hextoint(tstr[i + 1]);
unsigned t;
if (sscanf(tstr + i, "%02x", &t) != 1) {
LOG_ERROR("BUG: unable to convert register value");
exit(-1);
}
int j = gdb_reg_pos(target, i/2, str_len/2);
bin[j] = t;