| PDELBKPT(3PROC) | Process Control Library Functions | PDELBKPT(3PROC) |
Pdelbkpt — clear a
breakpoint in a process
Process Control Library (libproc, -lproc)
#include
<libproc.h>
int
Pdelbkpt(struct ps_prochandle
*P, uintptr_t address, ulong_t
saved);
The
Pdelbkpt()
function removes the breakpoint installed at address
from process P. Restoring the instruction present in
saved.
If the instruction at address is no longer the architecture-specific breakpoint instruction, then saved is not restored, but the function still returns successfully. This behavior is done due to the presence of setting breakpoints in self-modifying code, e.g. procedure linkage tables.
The
Pdelbkpt()
function only works on running processes, such as those created through
Pgrab(3PROC) and
Pcreate(3PROC). Attempting to
remove a breakpoint from process handles to core files, zombie processes, or
ELF objects will fail.
Upon successful completion, the Pdelbkpt()
function removes the breakpoint and returns
0. Otherwise,
-1 is returned,
and
errno is
set to indicate the error.
For a full list of possible errors see the DIAGNOSTICS section in proc(5).
The Pdelbkpt() function will fail
with:
ENOENTSee LOCKING in libproc(3LIB).
libproc(3LIB), Pcreate(3PROC), Pgrab(3PROC), Pgrab_core(3PROC), Pgrab_file(3PROC), Psetbkpt(3PROC), proc(5)
| May 11, 2016 | OmniOS |