Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460// SPDX-License-Identifier: GPL-2.0/* * This file defines the trace event structures that go into the ring * buffer directly. They are created via macros so that changes for them * appear in the format file. Using macros will automate this process. * * The macro used to create a ftrace data structure is: * * FTRACE_ENTRY( name, struct_name, id, structure, print ) * * @name: the name used the event name, as well as the name of * the directory that holds the format file. * * @struct_name: the name of the structure that is created. * * @id: The event identifier that is used to detect what event * this is from the ring buffer. * * @structure: the structure layout * * - __field( type, item ) * This is equivalent to declaring * type item; * in the structure. * - __array( type, item, size ) * This is equivalent to declaring * type item[size]; * in the structure. * * * for structures within structures, the format of the internal * structure is laid out. This allows the internal structure * to be deciphered for the format file. Although these macros * may become out of sync with the internal structure, they * will create a compile error if it happens. Since the * internal structures are just tracing helpers, this is not * an issue. * * When an internal structure is used, it should use: * * __field_struct( type, item ) * * instead of __field. This will prevent it from being shown in * the output file. The fields in the structure should use. * * __field_desc( type, container, item ) * __array_desc( type, container, item, len ) * * type, item and len are the same as __field and __array, but * container is added. This is the name of the item in * __field_struct that this is describing. * * * @print: the print format shown to users in the format file. */
/* * Function trace entry - function address and parent function address: */FTRACE_ENTRY_REG(function, ftrace_entry,
TRACE_FN,
F_STRUCT( __field_fn( unsigned long, ip ) __field_fn( unsigned long, parent_ip ) __dynamic_array( unsigned long, args ) ),
F_printk(" %ps <-- %ps", (void *)__entry->ip, (void *)__entry->parent_ip),
perf_ftrace_event_register);
/* Function call entry */FTRACE_ENTRY(funcgraph_entry, ftrace_graph_ent_entry,
TRACE_GRAPH_ENT,
F_STRUCT( __field_struct( struct ftrace_graph_ent, graph_ent ) __field_desc_packed(unsigned long, graph_ent, func ) __field_desc_packed(unsigned long, graph_ent, depth ) __dynamic_array(unsigned long, args ) ),
F_printk("--> %ps (%lu)", (void *)__entry->func, __entry->depth));
#ifdef CONFIG_FUNCTION_GRAPH_RETADDR
/* Function call entry with a return address */FTRACE_ENTRY_PACKED(fgraph_retaddr_entry, fgraph_retaddr_ent_entry,
TRACE_GRAPH_RETADDR_ENT,
F_STRUCT( __field_struct( struct fgraph_retaddr_ent, graph_rent ) __field_desc_packed( unsigned long, graph_rent.ent, func ) __field_desc_packed( unsigned long, graph_rent.ent, depth ) __field_desc_packed( unsigned long, graph_rent, retaddr ) __dynamic_array(unsigned long, args ) ),
F_printk("--> %ps (%lu) <- %ps", (void *)__entry->func, __entry->depth, (void *)__entry->retaddr));
#else
#ifndef fgraph_retaddr_ent_entry#define fgraph_retaddr_ent_entry ftrace_graph_ent_entry#endif
#endif
#ifdef CONFIG_FUNCTION_GRAPH_RETVAL
/* Function return entry */FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
TRACE_GRAPH_RET,
F_STRUCT( __field_struct( struct ftrace_graph_ret, ret ) __field_desc_packed( unsigned long, ret, func ) __field_desc_packed( unsigned long, ret, retval ) __field_desc_packed( unsigned int, ret, depth ) __field_desc_packed( unsigned int, ret, overrun ) __field_packed(unsigned long long, calltime) __field_packed(unsigned long long, rettime ) ),
F_printk("<-- %ps (%u) (start: %llx end: %llx) over: %u retval: %lx", (void *)__entry->func, __entry->depth, __entry->calltime, __entry->rettime, __entry->depth, __entry->retval));
#else
/* Function return entry */FTRACE_ENTRY_PACKED(funcgraph_exit, ftrace_graph_ret_entry,
TRACE_GRAPH_RET,
F_STRUCT( __field_struct( struct ftrace_graph_ret, ret ) __field_desc_packed( unsigned long, ret, func ) __field_desc_packed( unsigned int, ret, depth ) __field_desc_packed( unsigned int, ret, overrun ) __field_packed(unsigned long long, calltime ) __field_packed(unsigned long long, rettime ) ),
F_printk("<-- %ps (%u) (start: %llx end: %llx) over: %u", (void *)__entry->func, __entry->depth, __entry->calltime, __entry->rettime, __entry->depth));
#endif
/* * Context switch trace entry - which task (and prio) we switched from/to: * * This is used for both wakeup and context switches. We only want * to create one structure, but we need two outputs for it. */#define FTRACE_CTX_FIELDS \ __field( unsigned int, prev_pid ) \ __field( unsigned int, next_pid ) \ __field( unsigned int, next_cpu ) \ __field( unsigned char, prev_prio ) \ __field( unsigned char, prev_state ) \ __field( unsigned char, next_prio ) \ __field( unsigned char, next_state )
FTRACE_ENTRY(context_switch, ctx_switch_entry,
TRACE_CTX,
F_STRUCT( FTRACE_CTX_FIELDS ),
F_printk("%u:%u:%u ==> %u:%u:%u [%03u]", __entry->prev_pid, __entry->prev_prio, __entry->prev_state, __entry->next_pid, __entry->next_prio, __entry->next_state, __entry->next_cpu));
/* * FTRACE_ENTRY_DUP only creates the format file, it will not * create another structure. */FTRACE_ENTRY_DUP(wakeup, ctx_switch_entry,
TRACE_WAKE,
F_STRUCT( FTRACE_CTX_FIELDS ),
F_printk("%u:%u:%u ==+ %u:%u:%u [%03u]", __entry->prev_pid, __entry->prev_prio, __entry->prev_state, __entry->next_pid, __entry->next_prio, __entry->next_state, __entry->next_cpu));
/* * Stack-trace entry: */
#define FTRACE_STACK_ENTRIES 8
FTRACE_ENTRY(kernel_stack, stack_entry,
TRACE_STACK,
F_STRUCT( __field( int, size ) __stack_array( unsigned long, caller, FTRACE_STACK_ENTRIES, size) ),
F_printk("\t=> %ps\n\t=> %ps\n\t=> %ps\n" "\t=> %ps\n\t=> %ps\n\t=> %ps\n" "\t=> %ps\n\t=> %ps\n", (void *)__entry->caller[0], (void *)__entry->caller[1], (void *)__entry->caller[2], (void *)__entry->caller[3], (void *)__entry->caller[4], (void *)__entry->caller[5], (void *)__entry->caller[6], (void *)__entry->caller[7]));
FTRACE_ENTRY(user_stack, userstack_entry,
TRACE_USER_STACK,
F_STRUCT( __field( unsigned int, tgid ) __array( unsigned long, caller, FTRACE_STACK_ENTRIES ) ),
F_printk("\t=> %ps\n\t=> %ps\n\t=> %ps\n" "\t=> %ps\n\t=> %ps\n\t=> %ps\n" "\t=> %ps\n\t=> %ps\n", (void *)__entry->caller[0], (void *)__entry->caller[1], (void *)__entry->caller[2], (void *)__entry->caller[3], (void *)__entry->caller[4], (void *)__entry->caller[5], (void *)__entry->caller[6], (void *)__entry->caller[7]));
/* * trace_printk entry: */FTRACE_ENTRY(bprint, bprint_entry,
TRACE_BPRINT,
F_STRUCT( __field( unsigned long, ip ) __field( const char *, fmt ) __dynamic_array( u32, buf ) ),
F_printk("%ps: %s", (void *)__entry->ip, __entry->fmt));
FTRACE_ENTRY_REG(print, print_entry,
TRACE_PRINT,
F_STRUCT( __field( unsigned long, ip ) __dynamic_array( char, buf ) ),
F_printk("%ps: %s", (void *)__entry->ip, __entry->buf),
ftrace_event_register);
FTRACE_ENTRY(raw_data, raw_data_entry,
TRACE_RAW_DATA,
F_STRUCT( __field( unsigned int, id ) __dynamic_array( char, buf ) ),
F_printk("id:%04x %08x", __entry->id, (int)__entry->buf[0]));
FTRACE_ENTRY(bputs, bputs_entry,
TRACE_BPUTS,
F_STRUCT( __field( unsigned long, ip ) __field( const char *, str ) ),
F_printk("%ps: %s", (void *)__entry->ip, __entry->str));
FTRACE_ENTRY(mmiotrace_rw, trace_mmiotrace_rw,
TRACE_MMIO_RW,
F_STRUCT( __field_struct( struct mmiotrace_rw, rw ) __field_desc( resource_size_t, rw, phys ) __field_desc( unsigned long, rw, value ) __field_desc( unsigned long, rw, pc ) __field_desc( int, rw, map_id ) __field_desc( unsigned char, rw, opcode ) __field_desc( unsigned char, rw, width ) ),
F_printk("%lx %lx %lx %d %x %x", (unsigned long)__entry->phys, __entry->value, __entry->pc, __entry->map_id, __entry->opcode, __entry->width));
FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
TRACE_MMIO_MAP,
F_STRUCT( __field_struct( struct mmiotrace_map, map ) __field_desc( resource_size_t, map, phys ) __field_desc( unsigned long, map, virt ) __field_desc( unsigned long, map, len ) __field_desc( int, map, map_id ) __field_desc( unsigned char, map, opcode ) ),
F_printk("%lx %lx %lx %d %x", (unsigned long)__entry->phys, __entry->virt, __entry->len, __entry->map_id, __entry->opcode));
#define TRACE_FUNC_SIZE 30#define TRACE_FILE_SIZE 20
FTRACE_ENTRY(branch, trace_branch,
TRACE_BRANCH,
F_STRUCT( __field( unsigned int, line ) __array( char, func, TRACE_FUNC_SIZE+1 ) __array( char, file, TRACE_FILE_SIZE+1 ) __field( char, correct ) __field( char, constant ) ),
F_printk("%u:%s:%s (%u)%s", __entry->line, __entry->func, __entry->file, __entry->correct, __entry->constant ? " CONSTANT" : ""));
FTRACE_ENTRY(hwlat, hwlat_entry,
TRACE_HWLAT,
F_STRUCT( __field( u64, duration ) __field( u64, outer_duration ) __field( u64, nmi_total_ts ) __field_struct( struct timespec64, timestamp ) __field_desc( s64, timestamp, tv_sec ) __field_desc( long, timestamp, tv_nsec ) __field( unsigned int, nmi_count ) __field( unsigned int, seqnum ) __field( unsigned int, count ) ),
F_printk("cnt:%u\tts:%010llu.%010lu\tinner:%llu\touter:%llu\tcount:%d\tnmi-ts:%llu\tnmi-count:%u\n", __entry->seqnum, __entry->tv_sec, __entry->tv_nsec, __entry->duration, __entry->outer_duration, __entry->count, __entry->nmi_total_ts, __entry->nmi_count));
#define FUNC_REPEATS_GET_DELTA_TS(entry) \ (((u64)(entry)->top_delta_ts << 32) | (entry)->bottom_delta_ts) \
FTRACE_ENTRY(func_repeats, func_repeats_entry,
TRACE_FUNC_REPEATS,
F_STRUCT( __field( unsigned long, ip ) __field( unsigned long, parent_ip ) __field( u16 , count ) __field( u16 , top_delta_ts ) __field( u32 , bottom_delta_ts ) ),
F_printk(" %ps <-%ps\t(repeats:%u delta: -%llu)", (void *)__entry->ip, (void *)__entry->parent_ip, __entry->count, FUNC_REPEATS_GET_DELTA_TS(__entry)));
FTRACE_ENTRY(osnoise, osnoise_entry,
TRACE_OSNOISE,
F_STRUCT( __field( u64, noise ) __field( u64, runtime ) __field( u64, max_sample ) __field( unsigned int, hw_count ) __field( unsigned int, nmi_count ) __field( unsigned int, irq_count ) __field( unsigned int, softirq_count ) __field( unsigned int, thread_count ) ),
F_printk("noise:%llu\tmax_sample:%llu\thw:%u\tnmi:%u\tirq:%u\tsoftirq:%u\tthread:%u\n", __entry->noise, __entry->max_sample, __entry->hw_count, __entry->nmi_count, __entry->irq_count, __entry->softirq_count, __entry->thread_count));
FTRACE_ENTRY(timerlat, timerlat_entry,
TRACE_TIMERLAT,
F_STRUCT( __field( unsigned int, seqnum ) __field( int, context ) __field( u64, timer_latency ) ),
F_printk("seq:%u\tcontext:%d\ttimer_latency:%llu\n", __entry->seqnum, __entry->context, __entry->timer_latency));