korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-14 15:54:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

repair gdbstub to match the gdbserial protocol specification

Browse Source 
The gdbserial protocol handler should return an empty packet instead
of an error string when ever it responds to a command it does not
implement.

The problem cases come from a debugger client sending
qTBuffer, qTStatus, qSearch, qSupported.

The incorrect response from the gdbstub leads the debugger clients to
not function correctly.  Recent versions of gdb will not detach correctly as a result of this behavior.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
This commit is contained in:
Jason Wessel 2010-07-21 19:27:05 -05:00
parent 1396a21ba0
commit fb82c0ff27
1 changed files with 3 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
kernel/debug/gdbstub.c
View File

@ -621,10 +621,8 @@ static void gdb_cmd_query(struct kgdb_state *ks)
switch (remcom_in_buffer[1]) {
case 's':
case 'f':
if (memcmp(remcom_in_buffer + 2, "ThreadInfo", 10)) {
error_packet(remcom_out_buffer, -EINVAL);
if (memcmp(remcom_in_buffer + 2, "ThreadInfo", 10))
break;
}
i = 0;
remcom_out_buffer[0] = 'm';
@ -665,10 +663,9 @@ static void gdb_cmd_query(struct kgdb_state *ks)
pack_threadid(remcom_out_buffer + 2, thref);
break;
case 'T':
if (memcmp(remcom_in_buffer + 1, "ThreadExtraInfo,", 16)) {
error_packet(remcom_out_buffer, -EINVAL);
if (memcmp(remcom_in_buffer + 1, "ThreadExtraInfo,", 16))
break;
}
ks->threadid = 0;
ptr = remcom_in_buffer + 17;
kgdb_hex2long(&ptr, &ks->threadid);