tools/perf/util/perf_event_attr_fprintf.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <inttypes.h>
   3 #include <stdio.h>
   4 #include <stdbool.h>
   5 #include <linux/kernel.h>
   6 #include <linux/types.h>
   7 #include <linux/perf_event.h>
   8 #include "util/evsel_fprintf.h"
   9
  10 struct bit_names {
  11         int bit;
  12         const char *name;
  13 };
  14
  15 static void __p_bits(char *buf, size_t size, u64 value, struct bit_names *bits)
  16 {
  17         bool first_bit = true;
  18         int i = 0;
  19
  20         do {
  21                 if (value & bits[i].bit) {
  22                         buf += scnprintf(buf, size, "%s%s", first_bit ? "" : "|", bits[i].name);
  23                         first_bit = false;
  24                 }
  25         } while (bits[++i].name != NULL);
  26 }
  27
  28 static void __p_sample_type(char *buf, size_t size, u64 value)
  29 {
  30 #define bit_name(n) { PERF_SAMPLE_##n, #n }
  31         struct bit_names bits[] = {
  32                 bit_name(IP), bit_name(TID), bit_name(TIME), bit_name(ADDR),
  33                 bit_name(READ), bit_name(CALLCHAIN), bit_name(ID), bit_name(CPU),
  34                 bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW),
  35                 bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
  36                 bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC),
  37                 bit_name(WEIGHT), bit_name(PHYS_ADDR), bit_name(AUX),
  38                 { .name = NULL, }
  39         };
  40 #undef bit_name
  41         __p_bits(buf, size, value, bits);
  42 }
  43
  44 static void __p_branch_sample_type(char *buf, size_t size, u64 value)
  45 {
  46 #define bit_name(n) { PERF_SAMPLE_BRANCH_##n, #n }
  47         struct bit_names bits[] = {
  48                 bit_name(USER), bit_name(KERNEL), bit_name(HV), bit_name(ANY),
  49                 bit_name(ANY_CALL), bit_name(ANY_RETURN), bit_name(IND_CALL),
  50                 bit_name(ABORT_TX), bit_name(IN_TX), bit_name(NO_TX),
  51                 bit_name(COND), bit_name(CALL_STACK), bit_name(IND_JUMP),
  52                 bit_name(CALL), bit_name(NO_FLAGS), bit_name(NO_CYCLES),
  53                 { .name = NULL, }
  54         };
  55 #undef bit_name
  56         __p_bits(buf, size, value, bits);
  57 }
  58
  59 static void __p_read_format(char *buf, size_t size, u64 value)
  60 {
  61 #define bit_name(n) { PERF_FORMAT_##n, #n }
  62         struct bit_names bits[] = {
  63                 bit_name(TOTAL_TIME_ENABLED), bit_name(TOTAL_TIME_RUNNING),
  64                 bit_name(ID), bit_name(GROUP),
  65                 { .name = NULL, }
  66         };
  67 #undef bit_name
  68         __p_bits(buf, size, value, bits);
  69 }
  70
  71 #define BUF_SIZE                1024
  72
  73 #define p_hex(val)              snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val))
  74 #define p_unsigned(val)         snprintf(buf, BUF_SIZE, "%"PRIu64, (uint64_t)(val))
  75 #define p_signed(val)           snprintf(buf, BUF_SIZE, "%"PRId64, (int64_t)(val))
  76 #define p_sample_type(val)      __p_sample_type(buf, BUF_SIZE, val)
  77 #define p_branch_sample_type(val) __p_branch_sample_type(buf, BUF_SIZE, val)
  78 #define p_read_format(val)      __p_read_format(buf, BUF_SIZE, val)
  79
  80 #define PRINT_ATTRn(_n, _f, _p)                         \
  81 do {                                                    \
  82         if (attr->_f) {                                 \
  83                 _p(attr->_f);                           \
  84                 ret += attr__fprintf(fp, _n, buf, priv);\
  85         }                                               \
  86 } while (0)
  87
  88 #define PRINT_ATTRf(_f, _p)     PRINT_ATTRn(#_f, _f, _p)
  89
  90 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
  91                              attr__fprintf_f attr__fprintf, void *priv)
  92 {
  93         char buf[BUF_SIZE];
  94         int ret = 0;
  95
  96         PRINT_ATTRf(type, p_unsigned);
  97         PRINT_ATTRf(size, p_unsigned);
  98         PRINT_ATTRf(config, p_hex);
  99         PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned);
 100         PRINT_ATTRf(sample_type, p_sample_type);
 101         PRINT_ATTRf(read_format, p_read_format);
 102
 103         PRINT_ATTRf(disabled, p_unsigned);
 104         PRINT_ATTRf(inherit, p_unsigned);
 105         PRINT_ATTRf(pinned, p_unsigned);
 106         PRINT_ATTRf(exclusive, p_unsigned);
 107         PRINT_ATTRf(exclude_user, p_unsigned);
 108         PRINT_ATTRf(exclude_kernel, p_unsigned);
 109         PRINT_ATTRf(exclude_hv, p_unsigned);
 110         PRINT_ATTRf(exclude_idle, p_unsigned);
 111         PRINT_ATTRf(mmap, p_unsigned);
 112         PRINT_ATTRf(comm, p_unsigned);
 113         PRINT_ATTRf(freq, p_unsigned);
 114         PRINT_ATTRf(inherit_stat, p_unsigned);
 115         PRINT_ATTRf(enable_on_exec, p_unsigned);
 116         PRINT_ATTRf(task, p_unsigned);
 117         PRINT_ATTRf(watermark, p_unsigned);
 118         PRINT_ATTRf(precise_ip, p_unsigned);
 119         PRINT_ATTRf(mmap_data, p_unsigned);
 120         PRINT_ATTRf(sample_id_all, p_unsigned);
 121         PRINT_ATTRf(exclude_host, p_unsigned);
 122         PRINT_ATTRf(exclude_guest, p_unsigned);
 123         PRINT_ATTRf(exclude_callchain_kernel, p_unsigned);
 124         PRINT_ATTRf(exclude_callchain_user, p_unsigned);
 125         PRINT_ATTRf(mmap2, p_unsigned);
 126         PRINT_ATTRf(comm_exec, p_unsigned);
 127         PRINT_ATTRf(use_clockid, p_unsigned);
 128         PRINT_ATTRf(context_switch, p_unsigned);
 129         PRINT_ATTRf(write_backward, p_unsigned);
 130         PRINT_ATTRf(namespaces, p_unsigned);
 131         PRINT_ATTRf(ksymbol, p_unsigned);
 132         PRINT_ATTRf(bpf_event, p_unsigned);
 133         PRINT_ATTRf(aux_output, p_unsigned);
 134
 135         PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned);
 136         PRINT_ATTRf(bp_type, p_unsigned);
 137         PRINT_ATTRn("{ bp_addr, config1 }", bp_addr, p_hex);
 138         PRINT_ATTRn("{ bp_len, config2 }", bp_len, p_hex);
 139         PRINT_ATTRf(branch_sample_type, p_branch_sample_type);
 140         PRINT_ATTRf(sample_regs_user, p_hex);
 141         PRINT_ATTRf(sample_stack_user, p_unsigned);
 142         PRINT_ATTRf(clockid, p_signed);
 143         PRINT_ATTRf(sample_regs_intr, p_hex);
 144         PRINT_ATTRf(aux_watermark, p_unsigned);
 145         PRINT_ATTRf(sample_max_stack, p_unsigned);
 146         PRINT_ATTRf(aux_sample_size, p_unsigned);
 147
 148         return ret;
 149 }