X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fkernel-ctl%2Fkernel-ctl.c;h=8574c1f050b88f387e78e8b06ac80d6c97df5be6;hp=c6ff5c4457bd362b25a8203567db906d6c34cc37;hb=890d8fe47755c3bad936389cf48ffa141cff41c9;hpb=a5dfbb9db7ba31913657ed921006b13977b7b426 diff --git a/src/common/kernel-ctl/kernel-ctl.c b/src/common/kernel-ctl/kernel-ctl.c index c6ff5c445..8574c1f05 100644 --- a/src/common/kernel-ctl/kernel-ctl.c +++ b/src/common/kernel-ctl/kernel-ctl.c @@ -16,12 +16,12 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#define _GNU_SOURCE #define _LGPL_SOURCE #define __USE_LINUX_IOCTL_DEFS #include #include #include +#include #include "kernel-ctl.h" #include "kernel-ioctl.h" @@ -111,6 +111,7 @@ int kernctl_create_channel(int fd, struct lttng_channel_attr *chops) { struct lttng_kernel_channel channel; + memset(&channel, 0, sizeof(channel)); if (lttng_kernel_use_old_abi) { struct lttng_kernel_old_channel old_channel; @@ -142,30 +143,6 @@ int kernctl_create_channel(int fd, struct lttng_channel_attr *chops) return ioctl(fd, LTTNG_KERNEL_CHANNEL, &channel); } -int kernctl_enable_syscall(int fd, const char *syscall_name) -{ - struct lttng_kernel_event event; - - memset(&event, 0, sizeof(event)); - strncpy(event.name, syscall_name, sizeof(event.name)); - event.name[sizeof(event.name) - 1] = '\0'; - event.instrumentation = LTTNG_KERNEL_SYSCALL; - event.u.syscall.enable = 1; - return ioctl(fd, LTTNG_KERNEL_EVENT, &event); -} - -int kernctl_disable_syscall(int fd, const char *syscall_name) -{ - struct lttng_kernel_event event; - - memset(&event, 0, sizeof(event)); - strncpy(event.name, syscall_name, sizeof(event.name)); - event.name[sizeof(event.name) - 1] = '\0'; - event.instrumentation = LTTNG_KERNEL_SYSCALL; - 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; @@ -322,6 +299,25 @@ int kernctl_stop_session(int fd) LTTNG_KERNEL_SESSION_STOP); } +int kernctl_filter(int fd, struct lttng_filter_bytecode *filter) +{ + struct lttng_kernel_filter_bytecode *kb; + uint32_t len; + int ret; + + /* Translate bytecode to kernel bytecode */ + kb = zmalloc(sizeof(*kb) + filter->len); + if (!kb) + return -ENOMEM; + kb->len = len = filter->len; + kb->reloc_offset = filter->reloc_table_offset; + kb->seqnum = filter->seqnum; + memcpy(kb->data, filter->data, len); + ret = ioctl(fd, LTTNG_KERNEL_FILTER, kb); + free(kb); + return ret; +} + int kernctl_tracepoint_list(int fd) { return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_TRACEPOINT_LIST,