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trace-events 7.8KB

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  1. # See docs/devel/tracing.txt for syntax documentation.
  2. #
  3. # This file is processed by the tracetool script during the build.
  4. #
  5. # To add a new trace event:
  6. #
  7. # 1. Choose a name for the trace event. Declare its arguments and format
  8. # string.
  9. #
  10. # 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() ->
  11. # trace_multiwrite_cb(). The source file must #include "trace.h".
  12. #
  13. # Format of a trace event:
  14. #
  15. # [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
  16. #
  17. # Example: g_malloc(size_t size) "size %zu"
  18. #
  19. # The "disable" keyword will build without the trace event.
  20. #
  21. # The <name> must be a valid as a C function name.
  22. #
  23. # Types should be standard C types. Use void * for pointers because the trace
  24. # system may not have the necessary headers included.
  25. #
  26. # The <format-string> should be a sprintf()-compatible format string.
  27. # ioport.c
  28. cpu_in(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
  29. cpu_out(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
  30. # balloon.c
  31. # Since requests are raised via monitor, not many tracepoints are needed.
  32. balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
  33. # vl.c
  34. vm_state_notify(int running, int reason, const char *reason_str) "running %d reason %d (%s)"
  35. load_file(const char *name, const char *path) "name %s location %s"
  36. runstate_set(int current_state, const char *current_state_str, int new_state, const char *new_state_str) "current_run_state %d (%s) new_state %d (%s)"
  37. system_wakeup_request(int reason) "reason=%d"
  38. qemu_system_shutdown_request(int reason) "reason=%d"
  39. qemu_system_powerdown_request(void) ""
  40. # dma-helpers.c
  41. dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
  42. dma_aio_cancel(void *dbs) "dbs=%p"
  43. dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
  44. dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
  45. dma_map_wait(void *dbs) "dbs=%p"
  46. # exec.c
  47. find_ram_offset(uint64_t size, uint64_t offset) "size: 0x%" PRIx64 " @ 0x%" PRIx64
  48. find_ram_offset_loop(uint64_t size, uint64_t candidate, uint64_t offset, uint64_t next, uint64_t mingap) "trying size: 0x%" PRIx64 " @ 0x%" PRIx64 ", offset: 0x%" PRIx64" next: 0x%" PRIx64 " mingap: 0x%" PRIx64
  49. ram_block_discard_range(const char *rbname, void *hva, size_t length, bool need_madvise, bool need_fallocate, int ret) "%s@%p + 0x%zx: madvise: %d fallocate: %d ret: %d"
  50. # memory.c
  51. memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
  52. memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
  53. memory_region_subpage_read(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
  54. memory_region_subpage_write(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
  55. memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
  56. memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
  57. memory_region_ram_device_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
  58. memory_region_ram_device_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
  59. flatview_new(void *view, void *root) "%p (root %p)"
  60. flatview_destroy(void *view, void *root) "%p (root %p)"
  61. flatview_destroy_rcu(void *view, void *root) "%p (root %p)"
  62. # gdbstub.c
  63. gdbstub_op_start(const char *device) "Starting gdbstub using device %s"
  64. gdbstub_op_exiting(uint8_t code) "notifying exit with code=0x%02x"
  65. gdbstub_op_continue(void) "Continuing all CPUs"
  66. gdbstub_op_continue_cpu(int cpu_index) "Continuing CPU %d"
  67. gdbstub_op_stepping(int cpu_index) "Stepping CPU %d"
  68. gdbstub_op_extra_info(const char *info) "Thread extra info: %s"
  69. gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
  70. gdbstub_hit_internal_error(void) "RUN_STATE_INTERNAL_ERROR"
  71. gdbstub_hit_break(void) "RUN_STATE_DEBUG"
  72. gdbstub_hit_paused(void) "RUN_STATE_PAUSED"
  73. gdbstub_hit_shutdown(void) "RUN_STATE_SHUTDOWN"
  74. gdbstub_hit_io_error(void) "RUN_STATE_IO_ERROR"
  75. gdbstub_hit_watchdog(void) "RUN_STATE_WATCHDOG"
  76. gdbstub_hit_unknown(int state) "Unknown run state=0x%x"
  77. gdbstub_io_reply(const char *message) "Sent: %s"
  78. gdbstub_io_binaryreply(size_t ofs, const char *line) "0x%04zx: %s"
  79. gdbstub_io_command(const char *command) "Received: %s"
  80. gdbstub_io_got_ack(void) "Got ACK"
  81. gdbstub_io_got_unexpected(uint8_t ch) "Got 0x%02x when expecting ACK/NACK"
  82. gdbstub_err_got_nack(void) "Got NACK, retransmitting"
  83. gdbstub_err_garbage(uint8_t ch) "received garbage between packets: 0x%02x"
  84. gdbstub_err_overrun(void) "command buffer overrun, dropping command"
  85. gdbstub_err_invalid_repeat(uint8_t ch) "got invalid RLE count: 0x%02x"
  86. gdbstub_err_invalid_rle(void) "got invalid RLE sequence"
  87. gdbstub_err_checksum_invalid(uint8_t ch) "got invalid command checksum digit: 0x%02x"
  88. gdbstub_err_checksum_incorrect(uint8_t expected, uint8_t got) "got command packet with incorrect checksum, expected=0x%02x, received=0x%02x"
  89. # job.c
  90. job_state_transition(void *job, int ret, const char *legal, const char *s0, const char *s1) "job %p (ret: %d) attempting %s transition (%s-->%s)"
  91. job_apply_verb(void *job, const char *state, const char *verb, const char *legal) "job %p in state %s; applying verb %s (%s)"
  92. job_completed(void *job, int ret) "job %p ret %d"
  93. # job-qmp.c
  94. qmp_job_cancel(void *job) "job %p"
  95. qmp_job_pause(void *job) "job %p"
  96. qmp_job_resume(void *job) "job %p"
  97. qmp_job_complete(void *job) "job %p"
  98. qmp_job_finalize(void *job) "job %p"
  99. qmp_job_dismiss(void *job) "job %p"
  100. ### Guest events, keep at bottom
  101. ## vCPU
  102. # trace/control-target.c
  103. # Hot-plug a new virtual (guest) CPU
  104. #
  105. # Mode: user, softmmu
  106. # Targets: all
  107. vcpu guest_cpu_enter(void)
  108. # trace/control.c
  109. # Hot-unplug a virtual (guest) CPU
  110. #
  111. # Mode: user, softmmu
  112. # Targets: all
  113. vcpu guest_cpu_exit(void)
  114. # hw/core/cpu.c
  115. # Reset the state of a virtual (guest) CPU
  116. #
  117. # Mode: user, softmmu
  118. # Targets: all
  119. vcpu guest_cpu_reset(void)
  120. # tcg/tcg-op.c
  121. # @vaddr: Access' virtual address.
  122. # @info : Access' information (see below).
  123. #
  124. # Start virtual memory access (before any potential access violation).
  125. #
  126. # Does not include memory accesses performed by devices.
  127. #
  128. # Access information can be parsed as:
  129. #
  130. # struct mem_info {
  131. # uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
  132. # bool sign_extend: 1; /* sign-extended */
  133. # uint8_t endianness : 1; /* 0: little, 1: big */
  134. # bool store : 1; /* wheter it's a store operation */
  135. # };
  136. #
  137. # Mode: user, softmmu
  138. # Targets: TCG(all)
  139. vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
  140. # linux-user/syscall.c
  141. # bsd-user/syscall.c
  142. # @num: System call number.
  143. # @arg*: System call argument value.
  144. #
  145. # Start executing a guest system call in syscall emulation mode.
  146. #
  147. # Mode: user
  148. # Targets: TCG(all)
  149. vcpu guest_user_syscall(uint64_t num, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, uint64_t arg6, uint64_t arg7, uint64_t arg8) "num=0x%016"PRIx64" arg1=0x%016"PRIx64" arg2=0x%016"PRIx64" arg3=0x%016"PRIx64" arg4=0x%016"PRIx64" arg5=0x%016"PRIx64" arg6=0x%016"PRIx64" arg7=0x%016"PRIx64" arg8=0x%016"PRIx64
  150. # @num: System call number.
  151. # @ret: System call result value.
  152. #
  153. # Finish executing a guest system call in syscall emulation mode.
  154. #
  155. # Mode: user
  156. # Targets: TCG(all)
  157. vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64