xref: /openbmc/qemu/trace-events (revision 2f44bea9) 
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# gdbstub.c
50gdbstub_op_start(const char *device) "Starting gdbstub using device %s"
51gdbstub_op_exiting(uint8_t code) "notifying exit with code=0x%02x"
52gdbstub_op_continue(void) "Continuing all CPUs"
53gdbstub_op_continue_cpu(int cpu_index) "Continuing CPU %d"
54gdbstub_op_stepping(int cpu_index) "Stepping CPU %d"
55gdbstub_op_extra_info(const char *info) "Thread extra info: %s"
56gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
57gdbstub_hit_internal_error(void) "RUN_STATE_INTERNAL_ERROR"
58gdbstub_hit_break(void) "RUN_STATE_DEBUG"
59gdbstub_hit_paused(void) "RUN_STATE_PAUSED"
60gdbstub_hit_shutdown(void) "RUN_STATE_SHUTDOWN"
61gdbstub_hit_io_error(void) "RUN_STATE_IO_ERROR"
62gdbstub_hit_watchdog(void) "RUN_STATE_WATCHDOG"
63gdbstub_hit_unknown(int state) "Unknown run state=0x%x"
64gdbstub_io_reply(const char *message) "Sent: %s"
65gdbstub_io_binaryreply(size_t ofs, const char *line) "0x%04zx: %s"
66gdbstub_io_command(const char *command) "Received: %s"
67gdbstub_io_got_ack(void) "Got ACK"
68gdbstub_io_got_unexpected(uint8_t ch) "Got 0x%02x when expecting ACK/NACK"
69gdbstub_err_got_nack(void) "Got NACK, retransmitting"
70gdbstub_err_garbage(uint8_t ch) "received garbage between packets: 0x%02x"
71gdbstub_err_overrun(void) "command buffer overrun, dropping command"
72gdbstub_err_invalid_repeat(uint8_t ch) "got invalid RLE count: 0x%02x"
73gdbstub_err_invalid_rle(void) "got invalid RLE sequence"
74gdbstub_err_checksum_invalid(uint8_t ch) "got invalid command checksum digit: 0x%02x"
75gdbstub_err_checksum_incorrect(uint8_t expected, uint8_t got) "got command packet with incorrect checksum, expected=0x%02x, received=0x%02x"
76
77# job.c
78job_state_transition(void *job,  int ret, const char *legal, const char *s0, const char *s1) "job %p (ret: %d) attempting %s transition (%s-->%s)"
79job_apply_verb(void *job, const char *state, const char *verb, const char *legal) "job %p in state %s; applying verb %s (%s)"
80job_completed(void *job, int ret) "job %p ret %d"
81
82# job-qmp.c
83qmp_job_cancel(void *job) "job %p"
84qmp_job_pause(void *job) "job %p"
85qmp_job_resume(void *job) "job %p"
86qmp_job_complete(void *job) "job %p"
87qmp_job_finalize(void *job) "job %p"
88qmp_job_dismiss(void *job) "job %p"
89
90
91### Guest events, keep at bottom
92
93
94## vCPU
95
96# trace/control-target.c
97
98# Hot-plug a new virtual (guest) CPU
99#
100# Mode: user, softmmu
101# Targets: all
102vcpu guest_cpu_enter(void)
103
104# trace/control.c
105
106# Hot-unplug a virtual (guest) CPU
107#
108# Mode: user, softmmu
109# Targets: all
110vcpu guest_cpu_exit(void)
111
112# hw/core/cpu.c
113
114# Reset the state of a virtual (guest) CPU
115#
116# Mode: user, softmmu
117# Targets: all
118vcpu guest_cpu_reset(void)
119
120# tcg/tcg-op.c
121
122# @vaddr: Access' virtual address.
123# @info : Access' information (see below).
124#
125# Start virtual memory access (before any potential access violation).
126#
127# Does not include memory accesses performed by devices.
128#
129# Access information can be parsed as:
130#
131# struct mem_info {
132#     uint8_t size_shift : 4; /* interpreted as "1 << size_shift" bytes */
133#     bool    sign_extend: 1; /* sign-extended */
134#     uint8_t endianness : 1; /* 0: little, 1: big */
135#     bool    store      : 1; /* whether it is a store operation */
136#             pad        : 1;
137#     uint8_t mmuidx     : 4; /* mmuidx (softmmu only)  */
138# };
139#
140# Mode: user, softmmu
141# Targets: TCG(all)
142vcpu tcg guest_mem_before(TCGv vaddr, uint16_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
143
144# include/user/syscall-trace.h
145
146# @num: System call number.
147# @arg*: System call argument value.
148#
149# Start executing a guest system call in syscall emulation mode.
150#
151# Mode: user
152# Targets: TCG(all)
153vcpu 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
154
155# @num: System call number.
156# @ret: System call result value.
157#
158# Finish executing a guest system call in syscall emulation mode.
159#
160# Mode: user
161# Targets: TCG(all)
162vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64
163