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# job.c 46job_state_transition(void *job, int ret, const char *legal, const char *s0, const char *s1) "job %p (ret: %d) attempting %s transition (%s-->%s)" 47job_apply_verb(void *job, const char *state, const char *verb, const char *legal) "job %p in state %s; applying verb %s (%s)" 48job_completed(void *job, int ret) "job %p ret %d" 49 50# job-qmp.c 51qmp_job_cancel(void *job) "job %p" 52qmp_job_pause(void *job) "job %p" 53qmp_job_resume(void *job) "job %p" 54qmp_job_complete(void *job) "job %p" 55qmp_job_finalize(void *job) "job %p" 56qmp_job_dismiss(void *job) "job %p" 57