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--- cpucycles/wrapper.c.orig 2024-03-18 00:15:33 UTC
+++ cpucycles/wrapper.c
@@ -16,6 +16,12 @@
#include <inttypes.h>
#include <signal.h>
#include <setjmp.h>
+
+#ifdef __FreeBSD__
+#include <sched.h>
+#include <sys/sysctl.h>
+#endif
+
#include "cpucycles.h"
#include "cpucycles_internal.h"
@@ -26,7 +32,7 @@ void cpucycles_tracesetup(void)
tracesetup = 1;
}
-static jmp_buf crash_jmp;
+static sigjmp_buf crash_jmp;
static void crash(int s)
{
@@ -81,6 +87,21 @@ static double osfreq(void)
if (s > 0) return result;
}
+#ifdef __FreeBSD__
+ {
+ int freq;
+ size_t len = sizeof freq;
+ char *freqctl;
+
+ if (asprintf(&freqctl, "dev.cpu.%d.freq", sched_getcpu())) {
+ if (sysctlbyname(freqctl, &freq, &len, NULL, 0) == 0) {
+ free(freqctl);
+ return 1e6 * freq;
+ } else
+ free(freqctl);
+ }
+ }
+#else
f = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed", "r");
if (f) {
s = fscanf(f,"%lf",&result);
@@ -163,6 +184,7 @@ static double osfreq(void)
pclose(f);
if (result) return 1000000.0 * result;
}
+#endif /* defined(__FreeBSD__) */
x = getenv("cpucyclespersecond");
if (x) {
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