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Cleanup and improve handle_wp_command and handle_rwp_command: 

- Simplify argument parsing logic using switch statement.
- Use parse_u32 to ensure all values parse properly.
- Return syntax error when mode argument fails to parse.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2236 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
zwelch 2009-06-13 00:34:10 +00:00
parent d0a300e0a0
commit f7afcfe23f
1 changed files with 58 additions and 41 deletions
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99
src/target/target.c
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@ -2582,7 +2582,6 @@ static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char
static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);
int retval;
if (argc == 0)
{
@ -2593,52 +2592,65 @@ static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char
command_print(cmd_ctx, "address: 0x%8.8x, len: 0x%8.8x, r/w/a: %i, value: 0x%8.8x, mask: 0x%8.8x", watchpoint->address, watchpoint->length, watchpoint->rw, watchpoint->value, watchpoint->mask);
watchpoint = watchpoint->next;
}
return ERROR_OK;
}
else if (argc >= 2)
{
enum watchpoint_rw type = WPT_ACCESS;
u32 data_value = 0x0;
u32 data_mask = 0xffffffff;
if (argc >= 3)
{
switch(args[2][0])
{
case 'r':
type = WPT_READ;
break;
case 'w':
type = WPT_WRITE;
break;
case 'a':
type = WPT_ACCESS;
break;
default:
command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
return ERROR_OK;
}
}
if (argc >= 4)
{
data_value = strtoul(args[3], NULL, 0);
}
if (argc >= 5)
{
data_mask = strtoul(args[4], NULL, 0);
}
enum watchpoint_rw type = WPT_ACCESS;
u32 addr = 0;
u32 length = 0;
u32 data_value = 0x0;
u32 data_mask = 0xffffffff;
int retval;
if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
{
LOG_ERROR("Failure setting breakpoints");
}
}
else
switch (argc)
{
case 5:
retval = parse_u32(args[4], &data_mask);
if (ERROR_OK != retval)
return retval;
// fall through
case 4:
retval = parse_u32(args[3], &data_value);
if (ERROR_OK != retval)
return retval;
// fall through
case 3:
switch(args[2][0])
{
case 'r':
type = WPT_READ;
break;
case 'w':
type = WPT_WRITE;
break;
case 'a':
type = WPT_ACCESS;
break;
default:
LOG_ERROR("invalid watchpoint mode ('%c')", args[2][0]);
return ERROR_COMMAND_SYNTAX_ERROR;
}
// fall through
case 2:
retval = parse_u32(args[1], &length);
if (ERROR_OK != retval)
return retval;
retval = parse_u32(args[0], &addr);
if (ERROR_OK != retval)
return retval;
break;
default:
command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
retval = watchpoint_add(target, addr, length, type,
data_value, data_mask);
if (ERROR_OK != retval)
LOG_ERROR("Failure setting watchpoints");
return retval;
}
static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
@ -2646,8 +2658,13 @@ static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char
if (argc != 1)
return ERROR_COMMAND_SYNTAX_ERROR;
u32 addr;
int retval = parse_u32(args[0], &addr);
if (ERROR_OK != retval)
return retval;
target_t *target = get_current_target(cmd_ctx);
watchpoint_remove(target, strtoul(args[0], NULL, 0));
watchpoint_remove(target, addr);
return ERROR_OK;
}