ref: a6e8789ff9b5412cb207f7adcf31fcf831d9bc00
dir: /sys/src/9/port/dtracytimer.c/
#include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "../port/error.h" #include "ureg.h" #include <dtracy.h> static DTProbe *timerprobe; static int running; void dtracytick(Ureg *ur) { DTTrigInfo info; if(!running) return; memset(&info, 0, sizeof(info)); info.arg[0] = ur->pc; info.arg[1] = userureg(ur); dtptrigger(timerprobe, &info); } static void timerprovide(DTProvider *prov) { if(timerprobe == nil) timerprobe = dtpnew("timer::1tk", prov, nil); } static int timerenable(DTProbe *) { running = 1; return 0; } static void timerdisable(DTProbe *) { running = 0; } DTProvider dtracytimerprov = { .name = "timer", .provide = timerprovide, .enable = timerenable, .disable = timerdisable, };