| subr_prof.c (72912) | subr_prof.c (74903) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)subr_prof.c 8.3 (Berkeley) 9/23/93 | 1/*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)subr_prof.c 8.3 (Berkeley) 9/23/93 |
| 34 * $FreeBSD: head/sys/kern/subr_prof.c 72912 2001-02-22 18:07:31Z jhb $ | 34 * $FreeBSD: head/sys/kern/subr_prof.c 74903 2001-03-28 03:06:10Z jhb $ |
| 35 */ 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/sysproto.h> 40#include <sys/ipl.h> 41#include <sys/kernel.h> 42#include <sys/proc.h> --- 44 unchanged lines hidden (view full) --- 87 int cputime_overhead; 88 int empty_loop_time; 89 int i; 90 int mcount_overhead; 91 int mexitcount_overhead; 92 int nullfunc_loop_overhead; 93 int nullfunc_loop_profiled_time; 94 uintfptr_t tmp_addr; | 35 */ 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/sysproto.h> 40#include <sys/ipl.h> 41#include <sys/kernel.h> 42#include <sys/proc.h> --- 44 unchanged lines hidden (view full) --- 87 int cputime_overhead; 88 int empty_loop_time; 89 int i; 90 int mcount_overhead; 91 int mexitcount_overhead; 92 int nullfunc_loop_overhead; 93 int nullfunc_loop_profiled_time; 94 uintfptr_t tmp_addr; |
| 95 int intrstate; | 95 critical_t savecrit; |
| 96#endif 97 98 /* 99 * Round lowpc and highpc to multiples of the density we're using 100 * so the rest of the scaling (here and in gprof) stays in ints. 101 */ 102 p->lowpc = ROUNDDOWN((u_long)btext, HISTFRACTION * sizeof(HISTCOUNTER)); 103 p->highpc = ROUNDUP((u_long)etext, HISTFRACTION * sizeof(HISTCOUNTER)); --- 26 unchanged lines hidden (view full) --- 130 p->cputime_count = &KCOUNT(p, PC_TO_I(p, cputime)); 131 p->mcount_count = &KCOUNT(p, PC_TO_I(p, mcount)); 132 p->mexitcount_count = &KCOUNT(p, PC_TO_I(p, mexitcount)); 133 134 /* 135 * Disable interrupts to avoid interference while we calibrate 136 * things. 137 */ | 96#endif 97 98 /* 99 * Round lowpc and highpc to multiples of the density we're using 100 * so the rest of the scaling (here and in gprof) stays in ints. 101 */ 102 p->lowpc = ROUNDDOWN((u_long)btext, HISTFRACTION * sizeof(HISTCOUNTER)); 103 p->highpc = ROUNDUP((u_long)etext, HISTFRACTION * sizeof(HISTCOUNTER)); --- 26 unchanged lines hidden (view full) --- 130 p->cputime_count = &KCOUNT(p, PC_TO_I(p, cputime)); 131 p->mcount_count = &KCOUNT(p, PC_TO_I(p, mcount)); 132 p->mexitcount_count = &KCOUNT(p, PC_TO_I(p, mexitcount)); 133 134 /* 135 * Disable interrupts to avoid interference while we calibrate 136 * things. 137 */ |
| 138 intrstate = save_intr(); 139 disable_intr(); | 138 savecrit = critical_enter(); |
| 140 141 /* 142 * Determine overheads. 143 * XXX this needs to be repeated for each useful timer/counter. 144 */ 145 cputime_overhead = 0; 146 startguprof(p); 147 for (i = 0; i < CALIB_SCALE; i++) --- 37 unchanged lines hidden (view full) --- 185#else 186#error 187#endif 188 mexitcount_overhead = KCOUNT(p, PC_TO_I(p, tmp_addr)); 189 190 p->state = GMON_PROF_OFF; 191 stopguprof(p); 192 | 139 140 /* 141 * Determine overheads. 142 * XXX this needs to be repeated for each useful timer/counter. 143 */ 144 cputime_overhead = 0; 145 startguprof(p); 146 for (i = 0; i < CALIB_SCALE; i++) --- 37 unchanged lines hidden (view full) --- 184#else 185#error 186#endif 187 mexitcount_overhead = KCOUNT(p, PC_TO_I(p, tmp_addr)); 188 189 p->state = GMON_PROF_OFF; 190 stopguprof(p); 191 |
| 193 restore_intr(intrstate); | 192 critical_exit(savecrit); |
| 194 195 nullfunc_loop_profiled_time = 0; 196 for (tmp_addr = (uintfptr_t)nullfunc_loop_profiled; 197 tmp_addr < (uintfptr_t)nullfunc_loop_profiled_end; 198 tmp_addr += HISTFRACTION * sizeof(HISTCOUNTER)) 199 nullfunc_loop_profiled_time += KCOUNT(p, PC_TO_I(p, tmp_addr)); 200#define CALIB_DOSCALE(count) (((count) + CALIB_SCALE / 3) / CALIB_SCALE) 201#define c2n(count, freq) ((int)((count) * 1000000000LL / freq)) --- 265 unchanged lines hidden --- | 193 194 nullfunc_loop_profiled_time = 0; 195 for (tmp_addr = (uintfptr_t)nullfunc_loop_profiled; 196 tmp_addr < (uintfptr_t)nullfunc_loop_profiled_end; 197 tmp_addr += HISTFRACTION * sizeof(HISTCOUNTER)) 198 nullfunc_loop_profiled_time += KCOUNT(p, PC_TO_I(p, tmp_addr)); 199#define CALIB_DOSCALE(count) (((count) + CALIB_SCALE / 3) / CALIB_SCALE) 200#define c2n(count, freq) ((int)((count) * 1000000000LL / freq)) --- 265 unchanged lines hidden --- |