Blame view
samples/trace_printk/trace-printk.c
1.46 KB
aad108aa9 tracing: Add trac... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 |
#include <linux/module.h> #include <linux/kthread.h> #include <linux/irq_work.h> /* Must not be static to force gcc to consider these non constant */ char *trace_printk_test_global_str = "This is a dynamic string that will use trace_puts "; char *trace_printk_test_global_str_irq = "(irq) This is a dynamic string that will use trace_puts "; char *trace_printk_test_global_str_fmt = "%sThis is a %s that will use trace_printk "; static struct irq_work irqwork; static void trace_printk_irq_work(struct irq_work *work) { trace_printk("(irq) This is a static string that will use trace_bputs "); trace_printk(trace_printk_test_global_str_irq); trace_printk("(irq) This is a %s that will use trace_bprintk() ", "static string"); trace_printk(trace_printk_test_global_str_fmt, "(irq) ", "dynamic string"); } static int __init trace_printk_init(void) { init_irq_work(&irqwork, trace_printk_irq_work); trace_printk("This is a static string that will use trace_bputs "); trace_printk(trace_printk_test_global_str); /* Kick off printing in irq context */ irq_work_queue(&irqwork); trace_printk("This is a %s that will use trace_bprintk() ", "static string"); trace_printk(trace_printk_test_global_str_fmt, "", "dynamic string"); return 0; } static void __exit trace_printk_exit(void) { } module_init(trace_printk_init); module_exit(trace_printk_exit); MODULE_AUTHOR("Steven Rostedt"); MODULE_DESCRIPTION("trace-printk"); MODULE_LICENSE("GPL"); |