Function report |
Source Code:kernel\trace\trace.c |
Create Date:2022-07-28 11:59:27 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:__trace_array_vprintk
Proto:static int __trace_array_vprintk(struct ring_buffer *buffer, unsigned long ip, const char *fmt, va_list args)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct ring_buffer * | buffer | |
unsigned long | ip | |
const char * | fmt | |
va_list | args |
3253 | call = event_print |
3255 | len = 0 |
3264 | pause_graph_tracing() |
3266 | pc = We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users* that think a non-zero value indicates we cannot preempt. |
3267 | preempt_disable_notrace() |
3270 | tbuffer = Thise allows for lockless recording. If we're nested too deeply, then* this returns NULL. |
3271 | If Not tbuffer Then |
3272 | len = 0 |
3273 | Go to out_nobuffer |
3278 | local_save_flags(flags) |
3280 | event = __trace_buffer_lock_reserve(buffer, TRACE_PRINT, size, flags, pc) |
3284 | entry = g_buffer_event_data - return the data of the event*@event: the event to get the data from |
3287 | No 3D Now!( & buf, tbuffer, len + 1) |
3288 | If Not call_filter_check_discard(call, entry, buffer, event) Then |
3289 | __buffer_unlock_commit(buffer, event) |
3293 | out : |
3294 | put_trace_buf() |
3296 | out_nobuffer : |
3297 | preempt_enable_notrace() |
3298 | unpause_graph_tracing() |
3300 | Return len |
Name | Describe |
---|---|
trace_array_vprintk | |
trace_array_printk_buf |
Source code conversion tool public plug-in interface | X |
---|---|
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |