diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 9 | ||||
| -rw-r--r-- | include/linux/syscalls.h | 18 |
2 files changed, 13 insertions, 14 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 57b1b6811b61..fe77e3395b40 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h | |||
| @@ -141,7 +141,8 @@ | |||
| 141 | #endif | 141 | #endif |
| 142 | 142 | ||
| 143 | #ifdef CONFIG_FTRACE_SYSCALLS | 143 | #ifdef CONFIG_FTRACE_SYSCALLS |
| 144 | #define TRACE_SYSCALLS() VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ | 144 | #define TRACE_SYSCALLS() . = ALIGN(8); \ |
| 145 | VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ | ||
| 145 | *(__syscalls_metadata) \ | 146 | *(__syscalls_metadata) \ |
| 146 | VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; | 147 | VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; |
| 147 | #else | 148 | #else |
| @@ -175,10 +176,7 @@ | |||
| 175 | VMLINUX_SYMBOL(__stop___verbose) = .; \ | 176 | VMLINUX_SYMBOL(__stop___verbose) = .; \ |
| 176 | LIKELY_PROFILE() \ | 177 | LIKELY_PROFILE() \ |
| 177 | BRANCH_PROFILE() \ | 178 | BRANCH_PROFILE() \ |
| 178 | TRACE_PRINTKS() \ | 179 | TRACE_PRINTKS() |
| 179 | \ | ||
| 180 | STRUCT_ALIGN(); \ | ||
| 181 | TRACE_SYSCALLS() | ||
| 182 | 180 | ||
| 183 | /* | 181 | /* |
| 184 | * Data section helpers | 182 | * Data section helpers |
| @@ -483,6 +481,7 @@ | |||
| 483 | *(.init.rodata) \ | 481 | *(.init.rodata) \ |
| 484 | MCOUNT_REC() \ | 482 | MCOUNT_REC() \ |
| 485 | FTRACE_EVENTS() \ | 483 | FTRACE_EVENTS() \ |
| 484 | TRACE_SYSCALLS() \ | ||
| 486 | DEV_DISCARD(init.rodata) \ | 485 | DEV_DISCARD(init.rodata) \ |
| 487 | CPU_DISCARD(init.rodata) \ | 486 | CPU_DISCARD(init.rodata) \ |
| 488 | MEM_DISCARD(init.rodata) \ | 487 | MEM_DISCARD(init.rodata) \ |
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 45508fec366d..98664db1be47 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h | |||
| @@ -125,8 +125,7 @@ extern struct trace_event_functions enter_syscall_print_funcs; | |||
| 125 | extern struct trace_event_functions exit_syscall_print_funcs; | 125 | extern struct trace_event_functions exit_syscall_print_funcs; |
| 126 | 126 | ||
| 127 | #define SYSCALL_TRACE_ENTER_EVENT(sname) \ | 127 | #define SYSCALL_TRACE_ENTER_EVENT(sname) \ |
| 128 | static struct syscall_metadata \ | 128 | static struct syscall_metadata __syscall_meta_##sname; \ |
| 129 | __attribute__((__aligned__(4))) __syscall_meta_##sname; \ | ||
| 130 | static struct ftrace_event_call __used \ | 129 | static struct ftrace_event_call __used \ |
| 131 | event_enter_##sname = { \ | 130 | event_enter_##sname = { \ |
| 132 | .name = "sys_enter"#sname, \ | 131 | .name = "sys_enter"#sname, \ |
| @@ -140,8 +139,7 @@ extern struct trace_event_functions exit_syscall_print_funcs; | |||
| 140 | __TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY) | 139 | __TRACE_EVENT_FLAGS(enter_##sname, TRACE_EVENT_FL_CAP_ANY) |
| 141 | 140 | ||
| 142 | #define SYSCALL_TRACE_EXIT_EVENT(sname) \ | 141 | #define SYSCALL_TRACE_EXIT_EVENT(sname) \ |
| 143 | static struct syscall_metadata \ | 142 | static struct syscall_metadata __syscall_meta_##sname; \ |
| 144 | __attribute__((__aligned__(4))) __syscall_meta_##sname; \ | ||
| 145 | static struct ftrace_event_call __used \ | 143 | static struct ftrace_event_call __used \ |
| 146 | event_exit_##sname = { \ | 144 | event_exit_##sname = { \ |
| 147 | .name = "sys_exit"#sname, \ | 145 | .name = "sys_exit"#sname, \ |
| @@ -158,8 +156,6 @@ extern struct trace_event_functions exit_syscall_print_funcs; | |||
| 158 | SYSCALL_TRACE_ENTER_EVENT(sname); \ | 156 | SYSCALL_TRACE_ENTER_EVENT(sname); \ |
| 159 | SYSCALL_TRACE_EXIT_EVENT(sname); \ | 157 | SYSCALL_TRACE_EXIT_EVENT(sname); \ |
| 160 | static struct syscall_metadata __used \ | 158 | static struct syscall_metadata __used \ |
| 161 | __attribute__((__aligned__(4))) \ | ||
| 162 | __attribute__((section("__syscalls_metadata"))) \ | ||
| 163 | __syscall_meta_##sname = { \ | 159 | __syscall_meta_##sname = { \ |
| 164 | .name = "sys"#sname, \ | 160 | .name = "sys"#sname, \ |
| 165 | .nb_args = nb, \ | 161 | .nb_args = nb, \ |
| @@ -168,14 +164,15 @@ extern struct trace_event_functions exit_syscall_print_funcs; | |||
| 168 | .enter_event = &event_enter_##sname, \ | 164 | .enter_event = &event_enter_##sname, \ |
| 169 | .exit_event = &event_exit_##sname, \ | 165 | .exit_event = &event_exit_##sname, \ |
| 170 | .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ | 166 | .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ |
| 171 | }; | 167 | }; \ |
| 168 | static struct syscall_metadata __used \ | ||
| 169 | __attribute__((section("__syscalls_metadata"))) \ | ||
| 170 | *__p_syscall_meta_##sname = &__syscall_meta_##sname; | ||
| 172 | 171 | ||
| 173 | #define SYSCALL_DEFINE0(sname) \ | 172 | #define SYSCALL_DEFINE0(sname) \ |
| 174 | SYSCALL_TRACE_ENTER_EVENT(_##sname); \ | 173 | SYSCALL_TRACE_ENTER_EVENT(_##sname); \ |
| 175 | SYSCALL_TRACE_EXIT_EVENT(_##sname); \ | 174 | SYSCALL_TRACE_EXIT_EVENT(_##sname); \ |
| 176 | static struct syscall_metadata __used \ | 175 | static struct syscall_metadata __used \ |
| 177 | __attribute__((__aligned__(4))) \ | ||
| 178 | __attribute__((section("__syscalls_metadata"))) \ | ||
| 179 | __syscall_meta__##sname = { \ | 176 | __syscall_meta__##sname = { \ |
| 180 | .name = "sys_"#sname, \ | 177 | .name = "sys_"#sname, \ |
| 181 | .nb_args = 0, \ | 178 | .nb_args = 0, \ |
| @@ -183,6 +180,9 @@ extern struct trace_event_functions exit_syscall_print_funcs; | |||
| 183 | .exit_event = &event_exit__##sname, \ | 180 | .exit_event = &event_exit__##sname, \ |
| 184 | .enter_fields = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \ | 181 | .enter_fields = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \ |
| 185 | }; \ | 182 | }; \ |
| 183 | static struct syscall_metadata __used \ | ||
| 184 | __attribute__((section("__syscalls_metadata"))) \ | ||
| 185 | *__p_syscall_meta_##sname = &__syscall_meta__##sname; \ | ||
| 186 | asmlinkage long sys_##sname(void) | 186 | asmlinkage long sys_##sname(void) |
| 187 | #else | 187 | #else |
| 188 | #define SYSCALL_DEFINE0(name) asmlinkage long sys_##name(void) | 188 | #define SYSCALL_DEFINE0(name) asmlinkage long sys_##name(void) |
