Red Hat ENTERPRISE LINUX 3 - SECURITY GUIDE, Manual

Page: 339 / 410

Appendix D. gdb Remote Serial Protocol 329
Implementation note: It is possible for a target to copy or move code that contains memory
breakpoints (e.g., when implementing overlays). The behavior of this packet, in the presence of
such a target, is not defined.
Reply:
OK
success
not supported
E
NN
for an error
z1,addr,length
-- remove hardware breakpoint (draft)
Z1,addr,length
-- insert hardware breakpoint (draft)
Insert (
Z1
) or remove (
z1
) a hardware breakpoint at address
addr
of size
length
.
A hardware breakpoint is implemented using a mechanism that is not dependant on being able
to modify the target’s memory.
Implementation note: A hardware breakpoint is not affected by code movement.
Reply:
OK
success
not supported
E
NN
for an error
z2,addr,length
-- remove write watchpoint (draft)
Z2,addr,length
-- insert write watchpoint (draft)
Insert (
Z2
) or remove (
z2
) a write watchpoint.
Reply:
OK
success
not supported
E
NN
for an error