X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fkernel-ctl%2Fkernel-ctl.c;h=b223ceac80f3bdab1a6ba6fd84d160802da6467e;hb=309fc9bf0c244ed47c4d7c3a47119e596a40eb73;hp=cb487853a3d3a68d5ef73493e1380fa3567d885e;hpb=d02666a971a38c0b088ae1570731646d5d663ce4;p=lttng-tools.git

diff --git a/src/common/kernel-ctl/kernel-ctl.c b/src/common/kernel-ctl/kernel-ctl.c
index cb487853a..b223ceac8 100644
--- a/src/common/kernel-ctl/kernel-ctl.c
+++ b/src/common/kernel-ctl/kernel-ctl.c
@@ -16,9 +16,12 @@
  * 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>
+#include <common/align.h>
 
 #include "kernel-ctl.h"
 #include "kernel-ioctl.h"
@@ -147,7 +150,7 @@ int kernctl_enable_syscall(int fd, const char *syscall_name)
 	strncpy(event.name, syscall_name, sizeof(event.name));
 	event.name[sizeof(event.name) - 1] = '\0';
 	event.instrumentation = LTTNG_KERNEL_SYSCALL;
-	event.u.syscall.disable = 0;
+	event.u.syscall.enable = 1;
 	return ioctl(fd, LTTNG_KERNEL_EVENT, &event);
 }
 
@@ -159,10 +162,61 @@ int kernctl_disable_syscall(int fd, const char *syscall_name)
 	strncpy(event.name, syscall_name, sizeof(event.name));
 	event.name[sizeof(event.name) - 1] = '\0';
 	event.instrumentation = LTTNG_KERNEL_SYSCALL;
-	event.u.syscall.disable = 1;
+	event.u.syscall.enable = 0;
 	return ioctl(fd, LTTNG_KERNEL_EVENT, &event);
 }
 
+int kernctl_syscall_mask(int fd, char **syscall_mask, uint32_t *nr_bits)
+{
+	struct lttng_kernel_syscall_mask kmask_len, *kmask = NULL;
+	size_t array_alloc_len;
+	char *new_mask;
+	int ret = 0;
+
+	if (!syscall_mask) {
+		ret = -1;
+		goto end;
+	}
+
+	if (!nr_bits) {
+		ret = -1;
+		goto end;
+	}
+
+	kmask_len.len = 0;
+	ret = ioctl(fd, LTTNG_KERNEL_SYSCALL_MASK, &kmask_len);
+	if (ret) {
+		goto end;
+	}
+
+	array_alloc_len = ALIGN(kmask_len.len, 8) >> 3;
+
+	kmask = zmalloc(sizeof(*kmask) + array_alloc_len);
+	if (!kmask) {
+		ret = -1;
+		goto end;
+	}
+
+	kmask->len = kmask_len.len;
+	ret = ioctl(fd, LTTNG_KERNEL_SYSCALL_MASK, kmask);
+	if (ret) {
+		goto end;
+	}
+
+	new_mask = realloc(*syscall_mask, array_alloc_len);
+	if (!new_mask) {
+		ret = -1;
+		goto end;
+	}
+	memcpy(new_mask, kmask->mask, array_alloc_len);
+	*syscall_mask = new_mask;
+	*nr_bits = kmask->len;
+
+end:
+	free(kmask);
+	return ret;
+}
+
 int kernctl_create_stream(int fd)
 {
 	return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_STREAM,
@@ -294,6 +348,12 @@ end:
 	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,