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