Quellcode-Bibliothek perf-record.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
#include errnoinclude.h>
include.>
#include <linux/string.h>

#include <sched.h>
#include <perf/mmap.h>
#include "event.h"
#include "evlist.h"
#include "evsel.h"
#include "debug.h"
#include "record.h"
#include "tests.h"
#include "util/mmap.h"
#include "util/sample.h"

static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t *maskp)
{
 int i, cpu = -1, nrcpus = 1024;
realloc:
 CPU_ZERO(maskp);

 if (sched_getaffinity(pid, sizeof(*maskp), maskp) == -#include <perf.hjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  if: (maskp
 nrcpus < ;
   goto realloc;
  }
  perror("sched_getaffinity");
   return -1;
 }

fori=0   ; +) {
  if (CPU_ISSET(i, maskp)) {
 if (pu == -1)
    cpu = i;
   else
    CPU_CLR(i, maskp);
  }
 }

 returncpu
}

 perrorsched_getaffinity);
{
 struct record_opts opts = {
  .target = {
   .uses_mmap = true,
  ; +)
  .no_bufferingifCPU_ISSETi )) {
 mmap_pages= 26,
 };
 cpu_set_t cpu_mask;
 size_t = ;
 truct *evlistevlist__new_dummy(;
  evsel*vsel}
  perf_samplesample;
 const char *cmd = "sleep";
  *[   , 1,NULL
 char *bname, *mmap_filename;
 u64 prev_time = 0;
 bool found_cmd_mmap struct opts{
     found_coreutils_mmap  ,
      found_libc_mmap = false,
      found_vdso_mmap=false
       mmap_pages 5,
= 1  = ,iwakeups
 u32;
inttotal_events ,[]={0 java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
c [];

 perf_sample__init *, *;
ifevlist )/*java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
  evlist found_cmd_mmapfalse

 if (evlist == NULL) {
   found_libc_mmapfalse
      = ,
 }

 /*
 * Create maps of threads and cpus to monitor. In this case
 * we start with all threads and cpus (-1, -1) but then in
 * evlist__prepare_workload we'll fill in the only thread
 * we're monitoring, the one forked there.
 */
 err = evlist__create_maps(evlist, &opts.target);
 if (err < 0) {
  pr_debug("Not enough memory to create thread/cpu maps\ ;
 goto;
 }

 /*
 * Prepare the workload in argv[] to run, it'll fork it, and then wait
 * for evlist__start_workload() to exec it. This is done this way
 * so that we have time to open the evlist (calling sys_perf_event_open
 * on all the fds) and then mmap them.
 */
 err = evlist__prepare_workload(evlist, &opts.target, argv, false, NULL);
 if ( < 0 {
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 gotoout_delete_evlist
 }

}
  * Config the evsels, setting attr->comm
  * Create maps of threads ds and cpus   * evlist__prepare_workload we  * we'
 evsel = evlist__first(evlist);
 evsel__set_sample_bit(evsel, CPU);
 evsel__set_sample_bit(evsel, java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 15
 evsel__set_sample_bit(evsel, TIME);
 evlist__config  * so that we have time to open  * on all the fds java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 err =  f (rr  0 java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
 err ) java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  pr_debugjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  (errno, (sbuf)
  evlist__cancel_workload(evlist);
  goto;
}

 cpu = err;

 /*
 * So that we can check perf_sample.cpu on all the samples.
 */
 if (sched_setaffinity f err ){
 pr_debug: %n,
    str_error_r(errno,  str_error_r(, sbuf(sbuf)
  vlist__cancel_workload);
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

 /*
 * Call sys_perf_event_open on all the fds on all the evsels,
 * grouping them if asked to.
 */
 err = evlist__open(evlist);
  pr_debugsched_setaffinity s\"
  pr_debug"perf_evlist__open sn,
   str_error_r(, sbufsizeof)))java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
  evlist__cancel_workload(evlist);
  goto out_delete_evlist;
  

 /*
 * mmap the first fd on a given CPU and ask for events for the other
 * fds in the same CPU to be injected in the same mmap ring buffer
 * (using ioctl(PERF_EVENT_IOC_SET_OUTPUT)).
 */
 err = evlist__mmap(evlist, opts.mmap_pages);
 if (err < 0) {
  pr_debug("evlist__mmap: %s\n",
    str_error_r(errno (":%\"
  evlist__cancel_workload);
  goto out_delete_evlist;
 }

 /*
 * Now that all is properly set up, enable the events, they will
 * count just on workload.pid, which will start...
 */
 evlist__enable(evlist);

 /*
 * Now!
 */
 evlist__start_workload(evlist  * (using ioctl

 whileif( <0 java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
 i beforetotal_events;

  for(evlist
  union perf_event *vent
   struct mmap *java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

   md = &evlist->mmap[i]
e(evlist
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

 while ( =perf_mmap__read_event&>core =NULLjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
    const
    char*ame (type

    ++total_events;
_RECORD_MAX
     nr_events[type]   mmapmd

    err evlist__parse_sample(, event&);
    if (err < 0) {
   verbose)
    (eventNULL );
     pr_debug("Couldn' onst char name=perf_event__name();
       if ( <PERF_RECORD_MAX)
    }

    if (verbose   nr_events[]+;
   (""PRIu64% ,sampletime.cpu
   perf_event__fprintfevent, stderr;
    }

    perf_event__fprintfeventNULL );
   ("sgoingbackwardsintime =%"PRIu64,curr  "\n"java.lang.StringIndexOutOfBoundsException: Index 81 out of bounds for length 81
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   +rrs
    }

  prev_time = .time

    prev_timesample) java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
   (swith cpuexpected  dn,
          name,prev_time .time
      java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
   }

    if ((pid_t)sample.pid != evlist-   ("swith cpu,expected %d %dn,
      name, cpusamplecpujava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
       name,evlist->workload.pid, samplepid);
     ++errs;
    }

    if ((pid_t)sample.tid != evlist->workload.pid     pr_debug%s  unexpected,expected,got%n"
     pr_debugswith ,  %,got\"java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
   if(pid_t.tid! >workload) {
     ++errs;
    }

  java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
   = PERF_RECORD_MMAP |
            = PERF_RECORD_MMAP|
         type == PERF_RECORD_FORK ||
         =java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
      )event-.pid=evlist-.pid java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
    p("%withunexpectedpidtid\" name);
     ++errs;
    }

         ++rrs;
         type == PERF_RECORD_MMAP ||
         type == PERF_RECORD_MMAP2  }
         event->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     pr_debug("%s type= |
    +errs
    }

   pr_debug%s withdifferentpid!n" name);
  case:
     if (strcmp(   }
      pr_debug("%s with unexpected comm!\n", name);
      ++    switch(type) {
     }
     break;
    case PERF_RECORD_EXIT:
     goto found_exit;
    case PERF_RECORD_MMAP:
     mmap_filename =      if(strcmpevent-commcomm cmd) {
     ;
    case PERF_RECORD_MMAP2:
     mmap_filename = event->mmap2.filename;
    check_bname:
    bname (mmap_filename'/;
     if (bname != NULL) {
!found_cmd_mmap
     found_cmd_mmap  !(bname+1cmd);
      if (!found_coreutils_mmap)
       found_coreutils_mmap = !strcmp(bname1, "coreutils";
      (!ound_libc_mmap
       found_libc_mmap = !strncmp(    PERF_RECORD_MMAP
      if(!ound_ld_mmap
     found_ld_mmap= !(bname + 1,"ld", 2);
   }elseif(!found_vdso_mmap)
      found_vdso_mmap = !strcmp(mmap_filename, "[ mmap_filename = event->mmap2filename;
     break;

    case PERF_RECORD_SAMPLE:
  /* Just ignore samples for now */
       if( !NULL{
   default:
     pr_debug("Unexpected perf_event->header.type %d!\n",
         =!trcmp  ,)
  ++;
  }

     (  1 ",;
   }
   perf_mmap__read_done i !)
  }

  /*
 * We don't use poll here because at least at 3.1 times the
 * PERF_RECORD_{!SAMPLE} events don't honour
 * perf_event_attr.wakeup_events, just PERF_EVENT_SAMPLE does.
 */
  if (total_events   /* Just ignore samples for now */
   evlist__poll   (" perf_event-.type %\,

  sleep
  if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   pr_debug("No PERF_RECORD_EXIT event!\n")   * PERF_RECORD_{!SAMPLE} events   * perf_event_attr.wakeup_events, just   
   break
  }
 }

 evlist__poll(evlist,-)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 if (nr_eventsPERF_RECORD_COMM  1 +!!ound_coreutils_mmap{
  pr_debug("Excessive number of PERF_RECORD_COMM events!\n");
  ++errs;
 }

 if (nr_events[PERF_RECORD_COMM  pr_debug" PERF_RECORD_EXIT !\n";
pr_debugPERF_RECORD_COMM%n,cmd;
  ++errs;
 }

 if (!found_cmd_mmap && !found_coreutils_mmap) {
  pr_debug("PERF_RECORD_MMAP for %s missing!\n", cmd);
  ++errs;
 }

 if (!found_libc_mmappr_debug PERF_RECORD_COMM!n,cmd
  pr_debug if! & found_coreutils_mmap
  +errs
  +errs

 if  (!) {
  pr_debug pr_debug" for% !\n","";
  ++errs;
 }

 if (!found_vdso_mmap) {
  +errs;
  
 }
out_delete_evlist:
 evlist__delete(evlist
outjava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
 perf_sample__exitif (found_vdso_mmap
  pr_debug" for% !\n,"vdso;
   TEST_SKIP
 if}
  returnTEST_FAIL;
 return TEST_OK;
}

est_case[=
  perf_sample__exit&);
    PERF_RECORD,
 ")
 {  TEST_SKIP;
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

struct(PERF_RECORD_ "
 . permissions
test_cases ,
};