# endif
#endif
+enum sc_type {
+ SC_TYPE_ENTRY,
+ SC_TYPE_EXIT,
+ SC_TYPE_COMPAT_ENTRY,
+ SC_TYPE_COMPAT_EXIT,
+};
+
+#define SYSCALL_ENTRY_STR "syscall_entry_"
+#define COMPAT_SYSCALL_ENTRY_STR "compat_syscall_entry_"
+#define SYSCALL_EXIT_STR "syscall_exit_"
+#define COMPAT_SYSCALL_EXIT_STR "compat_syscall_exit_"
+
static
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id);
+static
+void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret);
/*
* Forward declarations for old kernels.
#define PARAMS(args...) args
-/* Hijack probe callback for system calls */
+/* Handle unknown syscalls */
+#define TRACE_SYSTEM syscalls_unknown
+#include "instrumentation/syscalls/headers/syscalls_unknown.h"
+#undef TRACE_SYSTEM
+
+
+/* Hijack probe callback for system call enter */
#undef TP_PROBE_CB
#define TP_PROBE_CB(_template) &syscall_entry_probe
#define SC_TRACE_EVENT(_name, _proto, _args, _struct, _assign, _printk) \
- TRACE_EVENT(_name, PARAMS(_proto), PARAMS(_args),\
+ TRACE_EVENT(syscall_enter_##_name, PARAMS(_proto), PARAMS(_args),\
PARAMS(_struct), PARAMS(_assign), PARAMS(_printk))
#define SC_DECLARE_EVENT_CLASS_NOARGS(_name, _struct, _assign, _printk) \
- DECLARE_EVENT_CLASS_NOARGS(_name, PARAMS(_struct), PARAMS(_assign),\
+ DECLARE_EVENT_CLASS_NOARGS(syscall_enter_##_name, PARAMS(_struct), PARAMS(_assign),\
PARAMS(_printk))
#define SC_DEFINE_EVENT_NOARGS(_template, _name) \
- DEFINE_EVENT_NOARGS(_template, _name)
+ DEFINE_EVENT_NOARGS(syscall_enter_##_template, syscall_enter_##_name)
#undef TRACE_SYSTEM
-#define TRACE_SYSTEM syscalls_integers
+#define TRACE_SYSTEM syscall_enter_integers
+#define TRACE_INCLUDE_FILE syscalls_integers
#include "instrumentation/syscalls/headers/syscalls_integers.h"
+#undef TRACE_INCLUDE_FILE
#undef TRACE_SYSTEM
-#define TRACE_SYSTEM syscalls_pointers
+#define TRACE_SYSTEM syscall_enter_pointers
+#define TRACE_INCLUDE_FILE syscalls_pointers
#include "instrumentation/syscalls/headers/syscalls_pointers.h"
+#undef TRACE_INCLUDE_FILE
#undef TRACE_SYSTEM
#undef SC_TRACE_EVENT
#undef SC_DECLARE_EVENT_CLASS_NOARGS
#undef SC_DEFINE_EVENT_NOARGS
-
-#define TRACE_SYSTEM syscalls_unknown
-#include "instrumentation/syscalls/headers/syscalls_unknown.h"
-#undef TRACE_SYSTEM
-
-/* For compat syscalls */
+#undef TP_PROBE_CB
#undef _TRACE_SYSCALLS_integers_H
#undef _TRACE_SYSCALLS_pointers_H
-/* Hijack probe callback for system calls */
-#undef TP_PROBE_CB
+
+/* Hijack probe callback for compat system call enter */
#define TP_PROBE_CB(_template) &syscall_entry_probe
#define SC_TRACE_EVENT(_name, _proto, _args, _struct, _assign, _printk) \
- TRACE_EVENT(compat_##_name, PARAMS(_proto), PARAMS(_args), \
+ TRACE_EVENT(compat_syscall_enter_##_name, PARAMS(_proto), PARAMS(_args), \
PARAMS(_struct), PARAMS(_assign), \
PARAMS(_printk))
#define SC_DECLARE_EVENT_CLASS_NOARGS(_name, _struct, _assign, _printk) \
- DECLARE_EVENT_CLASS_NOARGS(compat_##_name, PARAMS(_struct), \
+ DECLARE_EVENT_CLASS_NOARGS(compat_syscall_enter_##_name, PARAMS(_struct), \
+ PARAMS(_assign), PARAMS(_printk))
+#define SC_DEFINE_EVENT_NOARGS(_template, _name) \
+ DEFINE_EVENT_NOARGS(compat_syscall_enter_##_template, \
+ compat_syscall_enter_##_name)
+#define TRACE_SYSTEM compat_syscall_enter_integers
+#define TRACE_INCLUDE_FILE compat_syscalls_integers
+#include "instrumentation/syscalls/headers/compat_syscalls_integers.h"
+#undef TRACE_INCLUDE_FILE
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM compat_syscall_enter_pointers
+#define TRACE_INCLUDE_FILE compat_syscalls_pointers
+#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h"
+#undef TRACE_INCLUDE_FILE
+#undef TRACE_SYSTEM
+#undef SC_TRACE_EVENT
+#undef SC_DECLARE_EVENT_CLASS_NOARGS
+#undef SC_DEFINE_EVENT_NOARGS
+#undef TP_PROBE_CB
+#undef _TRACE_SYSCALLS_integers_H
+#undef _TRACE_SYSCALLS_pointers_H
+
+
+/* Hijack probe callback for system call exit */
+#define TP_PROBE_CB(_template) &syscall_exit_probe
+#define SC_TRACE_EVENT(_name, _proto, _args, _struct, _assign, _printk) \
+ TRACE_EVENT(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args),\
+ PARAMS(_struct), PARAMS(_assign), PARAMS(_printk))
+#define SC_DECLARE_EVENT_CLASS_NOARGS(_name, _struct, _assign, _printk) \
+ DECLARE_EVENT_CLASS_NOARGS(syscall_exit_##_name, PARAMS(_struct), \
+ PARAMS(_assign), PARAMS(_printk))
+#define SC_DEFINE_EVENT_NOARGS(_template, _name) \
+ DEFINE_EVENT_NOARGS(syscall_exit_##_template, \
+ syscall_exit_##_name)
+#define TRACE_SYSTEM syscall_exit_integers
+#define TRACE_INCLUDE_FILE syscalls_integers
+#include "instrumentation/syscalls/headers/syscalls_integers.h"
+#undef TRACE_INCLUDE_FILE
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM syscall_exit_pointers
+#define TRACE_INCLUDE_FILE syscalls_pointers
+#include "instrumentation/syscalls/headers/syscalls_pointers.h"
+#undef TRACE_INCLUDE_FILE
+#undef TRACE_SYSTEM
+#undef SC_TRACE_EVENT
+#undef SC_DECLARE_EVENT_CLASS_NOARGS
+#undef SC_DEFINE_EVENT_NOARGS
+#undef TP_PROBE_CB
+#undef _TRACE_SYSCALLS_integers_H
+#undef _TRACE_SYSCALLS_pointers_H
+
+
+/* Hijack probe callback for compat system call exit */
+#define TP_PROBE_CB(_template) &syscall_exit_probe
+#define SC_TRACE_EVENT(_name, _proto, _args, _struct, _assign, _printk) \
+ TRACE_EVENT(compat_syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
+ PARAMS(_struct), PARAMS(_assign), PARAMS(_printk))
+#define SC_DECLARE_EVENT_CLASS_NOARGS(_name, _struct, _assign, _printk) \
+ DECLARE_EVENT_CLASS_NOARGS(compat_syscall_exit_##_name, PARAMS(_struct), \
PARAMS(_assign), PARAMS(_printk))
#define SC_DEFINE_EVENT_NOARGS(_template, _name) \
- DEFINE_EVENT_NOARGS(compat_##_template, compat_##_name)
-#define TRACE_SYSTEM compat_syscalls_integers
+ DEFINE_EVENT_NOARGS(compat_syscall_exit_##_template, \
+ compat_syscall_exit_##_name)
+#define TRACE_SYSTEM compat_syscall_exit_integers
+#define TRACE_INCLUDE_FILE compat_syscalls_integers
#include "instrumentation/syscalls/headers/compat_syscalls_integers.h"
+#undef TRACE_INCLUDE_FILE
#undef TRACE_SYSTEM
-#define TRACE_SYSTEM compat_syscalls_pointers
+#define TRACE_SYSTEM compat_syscall_exit_pointers
+#define TRACE_INCLUDE_FILE compat_syscalls_pointers
#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h"
+#undef TRACE_INCLUDE_FILE
#undef TRACE_SYSTEM
#undef SC_TRACE_EVENT
#undef SC_DECLARE_EVENT_CLASS_NOARGS
#undef SC_DEFINE_EVENT_NOARGS
#undef TP_PROBE_CB
+#undef _TRACE_SYSCALLS_integers_H
+#undef _TRACE_SYSCALLS_pointers_H
+
#undef TP_MODULE_NOINIT
#undef LTTNG_PACKAGE_BUILD
#undef TRACE_SYSCALL_TABLE
#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs) \
[ _nr ] = { \
- .func = __event_probe__##_template, \
+ .func = __event_probe__syscall_enter_##_template, \
.nrargs = (_nrargs), \
- .fields = __event_fields___##_template, \
- .desc = &__event_desc___##_name, \
+ .fields = __event_fields___syscall_enter_##_template, \
+ .desc = &__event_desc___syscall_enter_##_name, \
},
+/* Syscall enter tracing table */
static const struct trace_syscall_entry sc_table[] = {
#include "instrumentation/syscalls/headers/syscalls_integers.h"
#include "instrumentation/syscalls/headers/syscalls_pointers.h"
#undef TRACE_SYSCALL_TABLE
#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs) \
[ _nr ] = { \
- .func = __event_probe__##compat_##_template, \
+ .func = __event_probe__compat_syscall_enter_##_template, \
.nrargs = (_nrargs), \
- .fields = __event_fields___##compat_##_template,\
- .desc = &__event_desc___##compat_##_name, \
+ .fields = __event_fields___compat_syscall_enter_##_template, \
+ .desc = &__event_desc___compat_syscall_enter_##_name, \
},
-/* Create compatibility syscall table */
+/* Compat syscall enter table */
const struct trace_syscall_entry compat_sc_table[] = {
#include "instrumentation/syscalls/headers/compat_syscalls_integers.h"
#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h"
};
+#undef TRACE_SYSCALL_TABLE
+#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs) \
+ [ _nr ] = { \
+ .func = __event_probe__syscall_exit_##_template, \
+ .nrargs = (_nrargs), \
+ .fields = __event_fields___syscall_exit_##_template, \
+ .desc = &__event_desc___syscall_exit_##_name, \
+ },
+
+/* Syscall exit table */
+static const struct trace_syscall_entry sc_exit_table[] = {
+#include "instrumentation/syscalls/headers/syscalls_integers.h"
+#include "instrumentation/syscalls/headers/syscalls_pointers.h"
+};
+
+#undef TRACE_SYSCALL_TABLE
+#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs) \
+ [ _nr ] = { \
+ .func = __event_probe__compat_syscall_exit_##_template, \
+ .nrargs = (_nrargs), \
+ .fields = __event_fields___compat_syscall_exit_##_template, \
+ .desc = &__event_desc___compat_syscall_exit_##_name, \
+ },
+
+/* Compat syscall exit table */
+const struct trace_syscall_entry compat_sc_exit_table[] = {
+#include "instrumentation/syscalls/headers/compat_syscalls_integers.h"
+#include "instrumentation/syscalls/headers/compat_syscalls_pointers.h"
+};
+
#undef CREATE_SYSCALL_TABLE
struct lttng_syscall_filter {
syscall_get_arguments(current, regs, 0, UNKNOWN_SYSCALL_NRARGS, args);
if (unlikely(is_compat_task()))
- __event_probe__compat_sys_unknown(event, id, args);
+ __event_probe__compat_syscall_enter_unknown(event, id, args);
else
- __event_probe__sys_unknown(event, id, args);
+ __event_probe__syscall_enter_unknown(event, id, args);
}
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
}
}
+static void syscall_exit_unknown(struct lttng_event *event,
+ struct pt_regs *regs, unsigned int id, long ret)
+{
+ unsigned long args[UNKNOWN_SYSCALL_NRARGS];
+
+ syscall_get_arguments(current, regs, 0, UNKNOWN_SYSCALL_NRARGS, args);
+ if (unlikely(is_compat_task()))
+ __event_probe__compat_syscall_exit_unknown(event, id, ret,
+ args);
+ else
+ __event_probe__syscall_exit_unknown(event, id, ret, args);
+}
+
+void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
+{
+ struct lttng_channel *chan = __data;
+ struct lttng_event *event, *unknown_event;
+ const struct trace_syscall_entry *table, *entry;
+ size_t table_len;
+ long id;
+
+ id = syscall_get_nr(current, regs);
+ if (unlikely(is_compat_task())) {
+ struct lttng_syscall_filter *filter;
+
+ filter = rcu_dereference(chan->sc_filter);
+ if (filter) {
+ if (id >= NR_compat_syscalls
+ || !test_bit(id, filter->sc_compat)) {
+ /* System call filtered out. */
+ return;
+ }
+ }
+ table = compat_sc_exit_table;
+ table_len = ARRAY_SIZE(compat_sc_exit_table);
+ unknown_event = chan->compat_sc_exit_unknown;
+ } else {
+ struct lttng_syscall_filter *filter;
+
+ filter = rcu_dereference(chan->sc_filter);
+ if (filter) {
+ if (id >= NR_syscalls
+ || !test_bit(id, filter->sc)) {
+ /* System call filtered out. */
+ return;
+ }
+ }
+ table = sc_exit_table;
+ table_len = ARRAY_SIZE(sc_exit_table);
+ unknown_event = chan->sc_exit_unknown;
+ }
+ if (unlikely(id >= table_len)) {
+ syscall_exit_unknown(unknown_event, regs, id, ret);
+ return;
+ }
+ if (unlikely(is_compat_task()))
+ event = chan->compat_sc_exit_table[id];
+ else
+ event = chan->sc_exit_table[id];
+ if (unlikely(!event)) {
+ syscall_exit_unknown(unknown_event, regs, id, ret);
+ return;
+ }
+ entry = &table[id];
+ WARN_ON_ONCE(!entry);
+
+ switch (entry->nrargs) {
+ case 0:
+ {
+ void (*fptr)(void *__data) = entry->func;
+
+ fptr(event);
+ break;
+ }
+ case 1:
+ {
+ void (*fptr)(void *__data,
+ unsigned long arg0) = entry->func;
+ unsigned long args[1];
+
+ syscall_get_arguments(current, regs, 0, entry->nrargs, args);
+ fptr(event, args[0]);
+ break;
+ }
+ case 2:
+ {
+ void (*fptr)(void *__data,
+ unsigned long arg0,
+ unsigned long arg1) = entry->func;
+ unsigned long args[2];
+
+ syscall_get_arguments(current, regs, 0, entry->nrargs, args);
+ fptr(event, args[0], args[1]);
+ break;
+ }
+ case 3:
+ {
+ void (*fptr)(void *__data,
+ unsigned long arg0,
+ unsigned long arg1,
+ unsigned long arg2) = entry->func;
+ unsigned long args[3];
+
+ syscall_get_arguments(current, regs, 0, entry->nrargs, args);
+ fptr(event, args[0], args[1], args[2]);
+ break;
+ }
+ case 4:
+ {
+ void (*fptr)(void *__data,
+ unsigned long arg0,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3) = entry->func;
+ unsigned long args[4];
+
+ syscall_get_arguments(current, regs, 0, entry->nrargs, args);
+ fptr(event, args[0], args[1], args[2], args[3]);
+ break;
+ }
+ case 5:
+ {
+ void (*fptr)(void *__data,
+ unsigned long arg0,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4) = entry->func;
+ unsigned long args[5];
+
+ syscall_get_arguments(current, regs, 0, entry->nrargs, args);
+ fptr(event, args[0], args[1], args[2], args[3], args[4]);
+ break;
+ }
+ case 6:
+ {
+ void (*fptr)(void *__data,
+ unsigned long arg0,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4,
+ unsigned long arg5) = entry->func;
+ unsigned long args[6];
+
+ syscall_get_arguments(current, regs, 0, entry->nrargs, args);
+ fptr(event, args[0], args[1], args[2],
+ args[3], args[4], args[5]);
+ break;
+ }
+ default:
+ break;
+ }
+}
+
/* noinline to diminish caller stack size */
static
int fill_table(const struct trace_syscall_entry *table, size_t table_len,
- struct lttng_event **chan_table, struct lttng_channel *chan, void *filter)
+ struct lttng_event **chan_table, struct lttng_channel *chan,
+ void *filter, enum sc_type type)
{
const struct lttng_event_desc *desc;
unsigned int i;
if (chan_table[i])
continue;
memset(&ev, 0, sizeof(ev));
- strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
+ switch (type) {
+ case SC_TYPE_ENTRY:
+ strncpy(ev.name, SYSCALL_ENTRY_STR,
+ LTTNG_KERNEL_SYM_NAME_LEN);
+ break;
+ case SC_TYPE_EXIT:
+ strncpy(ev.name, SYSCALL_EXIT_STR,
+ LTTNG_KERNEL_SYM_NAME_LEN);
+ break;
+ case SC_TYPE_COMPAT_ENTRY:
+ strncpy(ev.name, COMPAT_SYSCALL_ENTRY_STR,
+ LTTNG_KERNEL_SYM_NAME_LEN);
+ break;
+ case SC_TYPE_COMPAT_EXIT:
+ strncpy(ev.name, COMPAT_SYSCALL_EXIT_STR,
+ LTTNG_KERNEL_SYM_NAME_LEN);
+ break;
+ default:
+ BUG_ON(1);
+ break;
+ }
+ strncat(ev.name, desc->name,
+ LTTNG_KERNEL_SYM_NAME_LEN - strlen(ev.name) - 1);
ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
ev.instrumentation = LTTNG_KERNEL_NOOP;
chan_table[i] = lttng_event_create(chan, &ev, filter,
if (!chan->sc_table)
return -ENOMEM;
}
+ if (!chan->sc_exit_table) {
+ /* create syscall table mapping syscall to events */
+ chan->sc_exit_table = kzalloc(sizeof(struct lttng_event *)
+ * ARRAY_SIZE(sc_exit_table), GFP_KERNEL);
+ if (!chan->sc_exit_table)
+ return -ENOMEM;
+ }
+
#ifdef CONFIG_COMPAT
if (!chan->compat_sc_table) {
if (!chan->compat_sc_table)
return -ENOMEM;
}
+
+ if (!chan->compat_sc_exit_table) {
+ /* create syscall table mapping compat syscall to events */
+ chan->compat_sc_exit_table = kzalloc(sizeof(struct lttng_event *)
+ * ARRAY_SIZE(compat_sc_exit_table), GFP_KERNEL);
+ if (!chan->compat_sc_exit_table)
+ return -ENOMEM;
+ }
#endif
if (!chan->sc_unknown) {
const struct lttng_event_desc *desc =
- &__event_desc___sys_unknown;
+ &__event_desc___syscall_enter_unknown;
memset(&ev, 0, sizeof(ev));
strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
if (!chan->sc_compat_unknown) {
const struct lttng_event_desc *desc =
- &__event_desc___compat_sys_unknown;
+ &__event_desc___compat_syscall_enter_unknown;
memset(&ev, 0, sizeof(ev));
strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
}
}
- if (!chan->sc_exit) {
+ if (!chan->compat_sc_exit_unknown) {
const struct lttng_event_desc *desc =
- &__event_desc___exit_syscall;
+ &__event_desc___compat_syscall_exit_unknown;
memset(&ev, 0, sizeof(ev));
strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
ev.instrumentation = LTTNG_KERNEL_NOOP;
- chan->sc_exit = lttng_event_create(chan, &ev, filter,
+ chan->compat_sc_exit_unknown = lttng_event_create(chan, &ev,
+ filter, desc);
+ WARN_ON_ONCE(!chan->compat_sc_exit_unknown);
+ if (IS_ERR(chan->compat_sc_exit_unknown)) {
+ return PTR_ERR(chan->compat_sc_exit_unknown);
+ }
+ }
+
+ if (!chan->sc_exit_unknown) {
+ const struct lttng_event_desc *desc =
+ &__event_desc___syscall_exit_unknown;
+
+ memset(&ev, 0, sizeof(ev));
+ strncpy(ev.name, desc->name, LTTNG_KERNEL_SYM_NAME_LEN);
+ ev.name[LTTNG_KERNEL_SYM_NAME_LEN - 1] = '\0';
+ ev.instrumentation = LTTNG_KERNEL_NOOP;
+ chan->sc_exit_unknown = lttng_event_create(chan, &ev, filter,
desc);
- WARN_ON_ONCE(!chan->sc_exit);
- if (IS_ERR(chan->sc_exit)) {
- return PTR_ERR(chan->sc_exit);
+ WARN_ON_ONCE(!chan->sc_exit_unknown);
+ if (IS_ERR(chan->sc_exit_unknown)) {
+ return PTR_ERR(chan->sc_exit_unknown);
}
}
ret = fill_table(sc_table, ARRAY_SIZE(sc_table),
- chan->sc_table, chan, filter);
+ chan->sc_table, chan, filter, SC_TYPE_ENTRY);
+ if (ret)
+ return ret;
+ ret = fill_table(sc_exit_table, ARRAY_SIZE(sc_exit_table),
+ chan->sc_exit_table, chan, filter, SC_TYPE_EXIT);
if (ret)
return ret;
+
#ifdef CONFIG_COMPAT
ret = fill_table(compat_sc_table, ARRAY_SIZE(compat_sc_table),
- chan->compat_sc_table, chan, filter);
+ chan->compat_sc_table, chan, filter,
+ SC_TYPE_COMPAT_ENTRY);
+ if (ret)
+ return ret;
+ ret = fill_table(compat_sc_exit_table, ARRAY_SIZE(compat_sc_exit_table),
+ chan->compat_sc_exit_table, chan, filter,
+ SC_TYPE_COMPAT_EXIT);
if (ret)
return ret;
#endif
*/
if (!chan->sys_exit_registered) {
ret = lttng_wrapper_tracepoint_probe_register("sys_exit",
- (void *) __event_probe__exit_syscall,
- chan->sc_exit);
+ (void *) syscall_exit_probe, chan);
if (ret) {
WARN_ON_ONCE(lttng_wrapper_tracepoint_probe_unregister("sys_enter",
(void *) syscall_entry_probe, chan));
return 0;
if (chan->sys_enter_registered) {
ret = lttng_wrapper_tracepoint_probe_unregister("sys_exit",
- (void *) __event_probe__exit_syscall,
- chan->sc_exit);
+ (void *) syscall_exit_probe, chan);
if (ret)
return ret;
chan->sys_enter_registered = 0;
}
/* lttng_event destroy will be performed by lttng_session_destroy() */
kfree(chan->sc_table);
+ kfree(chan->sc_exit_table);
#ifdef CONFIG_COMPAT
kfree(chan->compat_sc_table);
+ kfree(chan->compat_sc_exit_table);
#endif
kfree(chan->sc_filter);
return 0;
for (i = 0; i < ARRAY_SIZE(sc_table); i++) {
const struct trace_syscall_entry *entry;
+ const char *it_name;
entry = &sc_table[i];
if (!entry->desc)
continue;
- if (!strcmp(syscall_name, entry->desc->name)) {
+ it_name = entry->desc->name;
+ it_name += strlen(SYSCALL_ENTRY_STR);
+ if (!strcmp(syscall_name, it_name)) {
syscall_nr = i;
break;
}
for (i = 0; i < ARRAY_SIZE(compat_sc_table); i++) {
const struct trace_syscall_entry *entry;
+ const char *it_name;
entry = &compat_sc_table[i];
if (!entry->desc)
continue;
- if (!strcmp(syscall_name, entry->desc->name)) {
+ it_name = entry->desc->name;
+ it_name += strlen(COMPAT_SYSCALL_ENTRY_STR);
+ if (!strcmp(syscall_name, it_name)) {
syscall_nr = i;
break;
}
projects / lttng-modules.git / commitdiff
