qemu/trace-events
<<
>>
Prefs
   1# See docs/devel/tracing.rst 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
  28# cpu.c
  29breakpoint_insert(int cpu_index, uint64_t pc, int flags) "cpu=%d pc=0x%" PRIx64 " flags=0x%x"
  30breakpoint_remove(int cpu_index, uint64_t pc, int flags) "cpu=%d pc=0x%" PRIx64 " flags=0x%x"
  31breakpoint_singlestep(int cpu_index, int enabled) "cpu=%d enable=%d"
  32
  33# dma-helpers.c
  34dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
  35dma_aio_cancel(void *dbs) "dbs=%p"
  36dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
  37dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
  38dma_map_wait(void *dbs) "dbs=%p"
  39
  40# exec.c
  41find_ram_offset(uint64_t size, uint64_t offset) "size: 0x%" PRIx64 " @ 0x%" PRIx64
  42find_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
  43ram_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"
  44
  45# accel/tcg/cputlb.c
  46memory_notdirty_write_access(uint64_t vaddr, uint64_t ram_addr, unsigned size) "0x%" PRIx64 " ram_addr 0x%" PRIx64 " size %u"
  47memory_notdirty_set_dirty(uint64_t vaddr) "0x%" PRIx64
  48
  49# job.c
  50job_state_transition(void *job,  int ret, const char *legal, const char *s0, const char *s1) "job %p (ret: %d) attempting %s transition (%s-->%s)"
  51job_apply_verb(void *job, const char *state, const char *verb, const char *legal) "job %p in state %s; applying verb %s (%s)"
  52job_completed(void *job, int ret) "job %p ret %d"
  53
  54# job-qmp.c
  55qmp_job_cancel(void *job) "job %p"
  56qmp_job_pause(void *job) "job %p"
  57qmp_job_resume(void *job) "job %p"
  58qmp_job_complete(void *job) "job %p"
  59qmp_job_finalize(void *job) "job %p"
  60qmp_job_dismiss(void *job) "job %p"
  61
  62
  63### Guest events, keep at bottom
  64
  65
  66## vCPU
  67
  68# trace/control-target.c
  69
  70# Hot-plug a new virtual (guest) CPU
  71#
  72# Mode: user, softmmu
  73# Targets: all
  74vcpu guest_cpu_enter(void)
  75
  76# trace/control.c
  77
  78# Hot-unplug a virtual (guest) CPU
  79#
  80# Mode: user, softmmu
  81# Targets: all
  82vcpu guest_cpu_exit(void)
  83
  84# hw/core/cpu.c
  85
  86# Reset the state of a virtual (guest) CPU
  87#
  88# Mode: user, softmmu
  89# Targets: all
  90vcpu guest_cpu_reset(void)
  91
  92# include/user/syscall-trace.h
  93
  94# @num: System call number.
  95# @arg*: System call argument value.
  96#
  97# Start executing a guest system call in syscall emulation mode.
  98#
  99# Mode: user
 100# Targets: TCG(all)
 101vcpu 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
 102
 103# @num: System call number.
 104# @ret: System call result value.
 105#
 106# Finish executing a guest system call in syscall emulation mode.
 107#
 108# Mode: user
 109# Targets: TCG(all)
 110vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64
 111