Hi,
There is a bug when using gdb to set read/write watchpoint.
OOCD will actually set a "write" watchpoint if you set "read" watchpoint
through gdb, and vis versa.
Since...
[target/breakpoints.h]
enum watchpoint_rw
{
WPT_READ = 0, WPT_WRITE = 1, WPT_ACCESS = 2
};
But...
[server/gdb_server.c]
int gdb_breakpoint_watchpoint_packet(...)
{
...
switch (type)
{
...
case 2:
case 3:
case 4:
{
...
if ((retval = watchpoint_add(target, address, size, type-2,
0, 0xffffffffu)) != ERROR_OK)
...
}
However, gdb defines the order of watchpoint_type as "write", "read" and
then "access".
I think it's better to modify as below.
[target/breakpoints.h]
enum watchpoint_rw
{
WPT_WRITE = 0, WPT_READ = 1, WPT_ACCESS = 2
};
[target/breakpoints.c]
static char *watchpoint_rw_strings[] =
{
"write",
"read",
"access"
};
Thanks
Best regards,
- Jerry
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