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Implement PID tracking for kernel tracing
[lttng-tools.git]
/
src
/
common
/
kernel-ctl
/
kernel-ctl.c
diff --git
a/src/common/kernel-ctl/kernel-ctl.c
b/src/common/kernel-ctl/kernel-ctl.c
index 6cc962703e03b11d8475212c4007c12408a32645..7168c362c9fdf9785833006e8fa5e2c5911f6954 100644
(file)
--- a/
src/common/kernel-ctl/kernel-ctl.c
+++ b/
src/common/kernel-ctl/kernel-ctl.c
@@
-16,6
+16,8
@@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#define _GNU_SOURCE
+#define _LGPL_SOURCE
#define __USE_LINUX_IOCTL_DEFS
#include <sys/ioctl.h>
#include <string.h>
#define __USE_LINUX_IOCTL_DEFS
#include <sys/ioctl.h>
#include <string.h>
@@
-188,6
+190,7
@@
int kernctl_syscall_mask(int fd, char **syscall_mask, uint32_t *nr_bits)
}
array_alloc_len = ALIGN(kmask_len.len, 8) >> 3;
}
array_alloc_len = ALIGN(kmask_len.len, 8) >> 3;
+
kmask = zmalloc(sizeof(*kmask) + array_alloc_len);
if (!kmask) {
ret = -1;
kmask = zmalloc(sizeof(*kmask) + array_alloc_len);
if (!kmask) {
ret = -1;
@@
-200,7
+203,7
@@
int kernctl_syscall_mask(int fd, char **syscall_mask, uint32_t *nr_bits)
goto end;
}
goto end;
}
- new_mask = realloc(syscall_mask, array_alloc_len);
+ new_mask = realloc(
*
syscall_mask, array_alloc_len);
if (!new_mask) {
ret = -1;
goto end;
if (!new_mask) {
ret = -1;
goto end;
@@
-214,6
+217,16
@@
end:
return ret;
}
return ret;
}
+int kernctl_track_pid(int fd, int pid)
+{
+ return ioctl(fd, LTTNG_KERNEL_SESSION_TRACK_PID, pid);
+}
+
+int kernctl_untrack_pid(int fd, int pid)
+{
+ return ioctl(fd, LTTNG_KERNEL_SESSION_UNTRACK_PID, pid);
+}
+
int kernctl_create_stream(int fd)
{
return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_STREAM,
int kernctl_create_stream(int fd)
{
return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_STREAM,
@@
-345,6
+358,12
@@
end:
return ret;
}
return ret;
}
+int kernctl_tracer_abi_version(int fd,
+ struct lttng_kernel_tracer_abi_version *v)
+{
+ return ioctl(fd, LTTNG_KERNEL_TRACER_ABI_VERSION, v);
+}
+
int kernctl_wait_quiescent(int fd)
{
return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_WAIT_QUIESCENT,
int kernctl_wait_quiescent(int fd)
{
return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_WAIT_QUIESCENT,
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