trace-events

   1 # Trace events for debugging and performance instrumentation
   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
  28 # ioport.c
  29 cpu_in(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
  30 cpu_out(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u"
  31
  32 # balloon.c
  33 # Since requests are raised via monitor, not many tracepoints are needed.
  34 balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
  35
  36 # vl.c
  37 vm_state_notify(int running, int reason) "running %d reason %d"
  38 load_file(const char *name, const char *path) "name %s location %s"
  39 runstate_set(int new_state) "new state %d"
  40 system_wakeup_request(int reason) "reason=%d"
  41 qemu_system_shutdown_request(int reason) "reason=%d"
  42 qemu_system_powerdown_request(void) ""
  43
  44 # monitor.c
  45 monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p"
  46 monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p"
  47 monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64
  48 handle_hmp_command(void *mon, const char *cmdline) "mon %p cmdline: %s"
  49 handle_qmp_command(void *mon, const char *req) "mon %p req: %s"
  50 monitor_suspend(void *ptr, int cnt) "mon %p: %d"
  51 monitor_qmp_cmd_in_band(const char *id) "%s"
  52 monitor_qmp_cmd_out_of_band(const char *id) "%s"
  53
  54 # dma-helpers.c
  55 dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
  56 dma_aio_cancel(void *dbs) "dbs=%p"
  57 dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
  58 dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
  59 dma_map_wait(void *dbs) "dbs=%p"
  60
  61 # exec.c
  62 find_ram_offset(uint64_t size, uint64_t offset) "size: 0x%" PRIx64 " @ 0x%" PRIx64
  63 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
  64 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"
  65
  66 # memory.c
  67 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"
  68 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"
  69 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"
  70 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"
  71 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"
  72 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"
  73 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"
  74 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"
  75 flatview_new(void *view, void *root) "%p (root %p)"
  76 flatview_destroy(void *view, void *root) "%p (root %p)"
  77 flatview_destroy_rcu(void *view, void *root) "%p (root %p)"
  78
  79 # gdbstub.c
  80 gdbstub_op_start(const char *device) "Starting gdbstub using device %s"
  81 gdbstub_op_exiting(uint8_t code) "notifying exit with code=0x%02x"
  82 gdbstub_op_continue(void) "Continuing all CPUs"
  83 gdbstub_op_continue_cpu(int cpu_index) "Continuing CPU %d"
  84 gdbstub_op_stepping(int cpu_index) "Stepping CPU %d"
  85 gdbstub_op_extra_info(const char *info) "Thread extra info: %s"
  86 gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
  87 gdbstub_hit_internal_error(void) "RUN_STATE_INTERNAL_ERROR"
  88 gdbstub_hit_break(void) "RUN_STATE_DEBUG"
  89 gdbstub_hit_paused(void) "RUN_STATE_PAUSED"
  90 gdbstub_hit_shutdown(void) "RUN_STATE_SHUTDOWN"
  91 gdbstub_hit_io_error(void) "RUN_STATE_IO_ERROR"
  92 gdbstub_hit_watchdog(void) "RUN_STATE_WATCHDOG"
  93 gdbstub_hit_unknown(int state) "Unknown run state=0x%x"
  94 gdbstub_io_reply(const char *message) "Sent: %s"
  95 gdbstub_io_binaryreply(size_t ofs, const char *line) "0x%04zx: %s"
  96 gdbstub_io_command(const char *command) "Received: %s"
  97 gdbstub_io_got_ack(void) "Got ACK"
  98 gdbstub_io_got_unexpected(uint8_t ch) "Got 0x%02x when expecting ACK/NACK"
  99 gdbstub_err_got_nack(void) "Got NACK, retransmitting"
 100 gdbstub_err_garbage(uint8_t ch) "received garbage between packets: 0x%02x"
 101 gdbstub_err_overrun(void) "command buffer overrun, dropping command"
 102 gdbstub_err_invalid_repeat(uint8_t ch) "got invalid RLE count: 0x%02x"
 103 gdbstub_err_invalid_rle(void) "got invalid RLE sequence"
 104 gdbstub_err_checksum_invalid(uint8_t ch) "got invalid command checksum digit: 0x%02x"
 105 gdbstub_err_checksum_incorrect(uint8_t expected, uint8_t got) "got command packet with incorrect checksum, expected=0x%02x, received=0x%02x"
 106
 107 # job.c
 108 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)"
 109 job_apply_verb(void *job, const char *state, const char *verb, const char *legal) "job %p in state %s; applying verb %s (%s)"
 110
 111 ### Guest events, keep at bottom
 112
 113
 114 ## vCPU
 115
 116 # Hot-plug a new virtual (guest) CPU
 117 #
 118 # Mode: user, softmmu
 119 # Targets: all
 120 vcpu guest_cpu_enter(void)
 121
 122 # Hot-unplug a virtual (guest) CPU
 123 #
 124 # Mode: user, softmmu
 125 # Targets: all
 126 vcpu guest_cpu_exit(void)
 127
 128 # Reset the state of a virtual (guest) CPU
 129 #
 130 # Mode: user, softmmu
 131 # Targets: all
 132 vcpu guest_cpu_reset(void)
 133
 134 # @vaddr: Access' virtual address.
 135 # @info : Access' information (see below).
 136 #
 137 # Start virtual memory access (before any potential access violation).
 138 #
 139 # Does not include memory accesses performed by devices.
 140 #
 141 # Access information can be parsed as:
 142 #
 143 # struct mem_info {
 144 #     uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
 145 #     bool    sign_extend: 1; /* sign-extended */
 146 #     uint8_t endianness : 1; /* 0: little, 1: big */
 147 #     bool    store      : 1; /* wheter it's a store operation */
 148 # };
 149 #
 150 # Mode: user, softmmu
 151 # Targets: TCG(all)
 152 vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
 153
 154 # @num: System call number.
 155 # @arg*: System call argument value.
 156 #
 157 # Start executing a guest system call in syscall emulation mode.
 158 #
 159 # Mode: user
 160 # Targets: TCG(all)
 161 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
 162
 163 # @num: System call number.
 164 # @ret: System call result value.
 165 #
 166 # Finish executing a guest system call in syscall emulation mode.
 167 #
 168 # Mode: user
 169 # Targets: TCG(all)
 170 vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64