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wrapper: compiler.h: remove READ_ONCE/WRITE_ONCE wrappers
[lttng-modules.git]
/
lttng-syscalls.c
diff --git
a/lttng-syscalls.c
b/lttng-syscalls.c
index ebd9246c32ef8b4e0ce1c469d1876b443166d67f..18a906a48f3f3a05ba58523204c46b78555e46c3 100644
(file)
--- a/
lttng-syscalls.c
+++ b/
lttng-syscalls.c
@@
-1,4
+1,4
@@
-/* SPDX-License-Identifier: (GPL-2.0
or LGPL-2.1
)
+/* SPDX-License-Identifier: (GPL-2.0
-only or LGPL-2.1-only
)
*
* lttng-syscalls.c
*
*
* lttng-syscalls.c
*
@@
-18,15
+18,16
@@
#include <linux/stringify.h>
#include <linux/file.h>
#include <linux/anon_inodes.h>
#include <linux/stringify.h>
#include <linux/file.h>
#include <linux/anon_inodes.h>
+#include <linux/fcntl.h>
#include <asm/ptrace.h>
#include <asm/syscall.h>
#include <lib/bitfield.h>
#include <asm/ptrace.h>
#include <asm/syscall.h>
#include <lib/bitfield.h>
-#include <wrapper/tracepoint.h>
-#include <wrapper/file.h>
#include <wrapper/rcu.h>
#include <wrapper/rcu.h>
-#include <wrapper/syscall.h>
#include <lttng-events.h>
#include <lttng-events.h>
+#include "lttng-tracepoint.h"
+
+#define LTTNG_SYSCALL_NR_ARGS 6
#ifndef CONFIG_COMPAT
# ifndef is_compat_task
#ifndef CONFIG_COMPAT
# ifndef is_compat_task
@@
-73,6
+74,18
@@
struct mmap_arg_struct;
struct file_handle;
struct user_msghdr;
struct file_handle;
struct user_msghdr;
+/*
+ * Forward declaration for kernels >= 5.6
+ */
+struct timex;
+struct timeval;
+struct itimerval;
+struct itimerspec;
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+typedef __kernel_old_time_t time_t;
+#endif
+
#ifdef IA32_NR_syscalls
#define NR_compat_syscalls IA32_NR_syscalls
#else
#ifdef IA32_NR_syscalls
#define NR_compat_syscalls IA32_NR_syscalls
#else
@@
-364,7
+377,7
@@
static void syscall_entry_unknown(struct lttng_event *event,
{
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
{
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
if (unlikely(in_compat_syscall()))
__event_probe__compat_syscall_entry_unknown(event, id, args);
else
if (unlikely(in_compat_syscall()))
__event_probe__compat_syscall_entry_unknown(event, id, args);
else
@@
-435,7
+448,7
@@
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
void (*fptr)(void *__data, unsigned long arg0) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
void (*fptr)(void *__data, unsigned long arg0) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, args[0]);
break;
}
fptr(event, args[0]);
break;
}
@@
-446,7
+459,7
@@
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
unsigned long arg1) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg1) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, args[0], args[1]);
break;
}
fptr(event, args[0], args[1]);
break;
}
@@
-458,7
+471,7
@@
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
unsigned long arg2) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg2) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, args[0], args[1], args[2]);
break;
}
fptr(event, args[0], args[1], args[2]);
break;
}
@@
-471,7
+484,7
@@
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
unsigned long arg3) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg3) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, args[0], args[1], args[2], args[3]);
break;
}
fptr(event, args[0], args[1], args[2], args[3]);
break;
}
@@
-485,7
+498,7
@@
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
unsigned long arg4) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg4) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, args[0], args[1], args[2], args[3], args[4]);
break;
}
fptr(event, args[0], args[1], args[2], args[3], args[4]);
break;
}
@@
-500,7
+513,7
@@
void syscall_entry_probe(void *__data, struct pt_regs *regs, long id)
unsigned long arg5) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg5) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, args[0], args[1], args[2],
args[3], args[4], args[5]);
break;
fptr(event, args[0], args[1], args[2],
args[3], args[4], args[5]);
break;
@@
-515,7
+528,7
@@
static void syscall_exit_unknown(struct lttng_event *event,
{
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
{
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
if (unlikely(in_compat_syscall()))
__event_probe__compat_syscall_exit_unknown(event, id, ret,
args);
if (unlikely(in_compat_syscall()))
__event_probe__compat_syscall_exit_unknown(event, id, ret,
args);
@@
-591,7
+604,7
@@
void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
unsigned long arg0) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg0) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, ret, args[0]);
break;
}
fptr(event, ret, args[0]);
break;
}
@@
-603,7
+616,7
@@
void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
unsigned long arg1) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg1) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, ret, args[0], args[1]);
break;
}
fptr(event, ret, args[0], args[1]);
break;
}
@@
-616,7
+629,7
@@
void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
unsigned long arg2) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg2) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, ret, args[0], args[1], args[2]);
break;
}
fptr(event, ret, args[0], args[1], args[2]);
break;
}
@@
-630,7
+643,7
@@
void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
unsigned long arg3) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg3) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, ret, args[0], args[1], args[2], args[3]);
break;
}
fptr(event, ret, args[0], args[1], args[2], args[3]);
break;
}
@@
-645,7
+658,7
@@
void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
unsigned long arg4) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg4) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, ret, args[0], args[1], args[2], args[3], args[4]);
break;
}
fptr(event, ret, args[0], args[1], args[2], args[3], args[4]);
break;
}
@@
-661,7
+674,7
@@
void syscall_exit_probe(void *__data, struct pt_regs *regs, long ret)
unsigned long arg5) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
unsigned long arg5) = entry->func;
unsigned long args[LTTNG_SYSCALL_NR_ARGS];
-
lttng_
syscall_get_arguments(current, regs, args);
+ syscall_get_arguments(current, regs, args);
fptr(event, ret, args[0], args[1], args[2],
args[3], args[4], args[5]);
break;
fptr(event, ret, args[0], args[1], args[2],
args[3], args[4], args[5]);
break;
@@
-748,8
+761,6
@@
int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
struct lttng_kernel_event ev;
int ret;
struct lttng_kernel_event ev;
int ret;
- wrapper_vmalloc_sync_all();
-
if (!chan->sc_table) {
/* create syscall table mapping syscall to events */
chan->sc_table = kzalloc(sizeof(struct lttng_event *)
if (!chan->sc_table) {
/* create syscall table mapping syscall to events */
chan->sc_table = kzalloc(sizeof(struct lttng_event *)
@@
-872,7
+883,7
@@
int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
return ret;
#endif
if (!chan->sys_enter_registered) {
return ret;
#endif
if (!chan->sys_enter_registered) {
- ret = lttng_
wrapper_
tracepoint_probe_register("sys_enter",
+ ret = lttng_tracepoint_probe_register("sys_enter",
(void *) syscall_entry_probe, chan);
if (ret)
return ret;
(void *) syscall_entry_probe, chan);
if (ret)
return ret;
@@
-883,10
+894,10
@@
int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
* conflict with sys_exit syscall entry.
*/
if (!chan->sys_exit_registered) {
* conflict with sys_exit syscall entry.
*/
if (!chan->sys_exit_registered) {
- ret = lttng_
wrapper_
tracepoint_probe_register("sys_exit",
+ ret = lttng_tracepoint_probe_register("sys_exit",
(void *) syscall_exit_probe, chan);
if (ret) {
(void *) syscall_exit_probe, chan);
if (ret) {
- WARN_ON_ONCE(lttng_
wrapper_
tracepoint_probe_unregister("sys_enter",
+ WARN_ON_ONCE(lttng_tracepoint_probe_unregister("sys_enter",
(void *) syscall_entry_probe, chan));
return ret;
}
(void *) syscall_entry_probe, chan));
return ret;
}
@@
-905,15
+916,15
@@
int lttng_syscalls_unregister(struct lttng_channel *chan)
if (!chan->sc_table)
return 0;
if (chan->sys_enter_registered) {
if (!chan->sc_table)
return 0;
if (chan->sys_enter_registered) {
- ret = lttng_
wrapper_tracepoint_probe_unregister("sys_exit
",
- (void *) syscall_e
xit
_probe, chan);
+ ret = lttng_
tracepoint_probe_unregister("sys_enter
",
+ (void *) syscall_e
ntry
_probe, chan);
if (ret)
return ret;
chan->sys_enter_registered = 0;
}
if (chan->sys_exit_registered) {
if (ret)
return ret;
chan->sys_enter_registered = 0;
}
if (chan->sys_exit_registered) {
- ret = lttng_
wrapper_tracepoint_probe_unregister("sys_enter
",
- (void *) syscall_e
ntry
_probe, chan);
+ ret = lttng_
tracepoint_probe_unregister("sys_exit
",
+ (void *) syscall_e
xit
_probe, chan);
if (ret)
return ret;
chan->sys_exit_registered = 0;
if (ret)
return ret;
chan->sys_exit_registered = 0;
@@
-1284,7
+1295,7
@@
int lttng_abi_syscall_list(void)
struct file *syscall_list_file;
int file_fd, ret;
struct file *syscall_list_file;
int file_fd, ret;
- file_fd =
lttng_get_unused_fd(
);
+ file_fd =
get_unused_fd_flags(0
);
if (file_fd < 0) {
ret = file_fd;
goto fd_error;
if (file_fd < 0) {
ret = file_fd;
goto fd_error;
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