xref: /qemu/include/exec/log.h (revision 27a4a30e)
1 #ifndef QEMU_EXEC_LOG_H
2 #define QEMU_EXEC_LOG_H
3 
4 #include "qemu/log.h"
5 #include "hw/core/cpu.h"
6 #include "disas/disas.h"
7 
8 /* cpu_dump_state() logging functions: */
9 /**
10  * log_cpu_state:
11  * @cpu: The CPU whose state is to be logged.
12  * @flags: Flags what to log.
13  *
14  * Logs the output of cpu_dump_state().
15  */
16 static inline void log_cpu_state(CPUState *cpu, int flags)
17 {
18     QemuLogFile *logfile;
19 
20     if (qemu_log_enabled()) {
21         rcu_read_lock();
22         logfile = atomic_rcu_read(&qemu_logfile);
23         if (logfile) {
24             cpu_dump_state(cpu, logfile->fd, flags);
25         }
26         rcu_read_unlock();
27     }
28 }
29 
30 /**
31  * log_cpu_state_mask:
32  * @mask: Mask when to log.
33  * @cpu: The CPU whose state is to be logged.
34  * @flags: Flags what to log.
35  *
36  * Logs the output of cpu_dump_state() if loglevel includes @mask.
37  */
38 static inline void log_cpu_state_mask(int mask, CPUState *cpu, int flags)
39 {
40     if (qemu_loglevel & mask) {
41         log_cpu_state(cpu, flags);
42     }
43 }
44 
45 #ifdef NEED_CPU_H
46 /* disas() and target_disas() to qemu_logfile: */
47 static inline void log_target_disas(CPUState *cpu, target_ulong start,
48                                     target_ulong len)
49 {
50     QemuLogFile *logfile;
51     rcu_read_lock();
52     logfile = atomic_rcu_read(&qemu_logfile);
53     if (logfile) {
54         target_disas(logfile->fd, cpu, start, len);
55     }
56     rcu_read_unlock();
57 }
58 
59 static inline void log_disas(void *code, unsigned long size)
60 {
61     QemuLogFile *logfile;
62     rcu_read_lock();
63     logfile = atomic_rcu_read(&qemu_logfile);
64     if (logfile) {
65         disas(logfile->fd, code, size);
66     }
67     rcu_read_unlock();
68 }
69 
70 #if defined(CONFIG_USER_ONLY)
71 /* page_dump() output to the log file: */
72 static inline void log_page_dump(const char *operation)
73 {
74     FILE *logfile = qemu_log_lock();
75     if (logfile) {
76         qemu_log("page layout changed following %s\n", operation);
77         page_dump(logfile);
78     }
79     qemu_log_unlock(logfile);
80 }
81 #endif
82 #endif
83 
84 #endif
85