* CDDL HEADER END
*/
/*
- * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
-/* #pragma ident "@(#)profile.c 1.6 06/03/24 SMI" */
+/* #pragma ident "@(#)profile.c 1.7 07/01/10 SMI" */
#if !defined(__APPLE__)
#include <sys/errno.h>
#define MACH__POSIX_C_SOURCE_PRIVATE 1 /* pulls in suitable savearea from mach/ppc/thread_status.h */
#include <kern/cpu_data.h>
#include <kern/thread.h>
+#include <kern/assert.h>
#include <mach/thread_status.h>
#include <sys/param.h>
#include <sys/dtrace_glue.h>
-#if defined(__ppc__) || defined(__ppc64__)
-extern struct savearea *find_kern_regs(thread_t);
-#elif defined(__i386__) || defined(__x86_64__)
-extern x86_saved_state32_t *find_kern_regs(thread_t);
+#include <machine/pal_routines.h>
+
+#if defined(__i386__) || defined(__x86_64__)
+extern x86_saved_state_t *find_kern_regs(thread_t);
#else
#error Unknown architecture
#endif
static dtrace_provider_id_t profile_id;
/*
- * Regardless of platform, there are five artificial frames in the case of the
+ * Regardless of platform, the stack frames look like this in the case of the
* profile provider:
*
* profile_fire
* cyclic_expire
* cyclic_fire
* [ cbe ]
- * [ locore ]
+ * [ interrupt code ]
*
- * On amd64, there are two frames associated with locore: one in locore, and
- * another in common interrupt dispatch code. (i386 has not been modified to
- * use this common layer.) Further, on i386, the interrupted instruction
- * appears as its own stack frame. All of this means that we need to add one
- * frame for amd64, and then take one away for both amd64 and i386.
+ * On x86, there are five frames from the generic interrupt code; further, the
+ * interrupted instruction appears as its own stack frame, giving us a total of
+ * 10.
*
* On SPARC, the picture is further complicated because the compiler
* optimizes away tail-calls -- so the following frames are optimized away:
* frame cannot be tail-call eliminated, yielding four frames in this case.
*
* All of the above constraints lead to the mess below. Yes, the profile
- * provider should ideally figure this out on-the-fly by hiting one of its own
+ * provider should ideally figure this out on-the-fly by hitting one of its own
* probes and then walking its own stack trace. This is complicated, however,
* and the static definition doesn't seem to be overly brittle. Still, we
* allow for a manual override in case we get it completely wrong.
*/
#if !defined(__APPLE__)
-#ifdef __x86_64__
-#define PROF_ARTIFICIAL_FRAMES 7
-#else
-#ifdef __i386__
-#define PROF_ARTIFICIAL_FRAMES 6
+#ifdef __x86
+#define PROF_ARTIFICIAL_FRAMES 10
#else
#ifdef __sparc
-#ifdef DEBUG
+#if DEBUG
#define PROF_ARTIFICIAL_FRAMES 4
#else
#define PROF_ARTIFICIAL_FRAMES 3
#endif
#endif
#endif
-#endif
#else /* is Mac OS X */
-#if defined(__ppc__) || defined(__ppc64__)
-#define PROF_ARTIFICIAL_FRAMES 8
-#elif defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__) || defined(__x86_64__)
#define PROF_ARTIFICIAL_FRAMES 9
#else
#error Unknown architecture
dtrace_probe(prof->prof_id, CPU->cpu_profile_pc,
CPU->cpu_profile_upc, late, 0, 0);
#else
-#if defined(__ppc__) || defined(__ppc64__)
- struct savearea *sv = find_kern_regs(current_thread());
-
- if (sv) {
- if (USERMODE(sv->save_srr1)) {
- dtrace_probe(prof->prof_id, 0x0, sv->save_srr0, late, 0, 0);
- } else {
- dtrace_probe(prof->prof_id, sv->save_srr0, 0x0, late, 0, 0);
- }
- } else {
- dtrace_probe(prof->prof_id, 0xcafebabe,
- 0x0, late, 0, 0); /* XXX_BOGUS also see profile_usermode() below. */
- }
-#elif defined(__i386__) || defined(__x86_64__)
- x86_saved_state32_t *kern_regs = find_kern_regs(current_thread());
+#if defined(__i386__) || defined(__x86_64__)
+ x86_saved_state_t *kern_regs = find_kern_regs(current_thread());
if (NULL != kern_regs) {
/* Kernel was interrupted. */
- dtrace_probe(prof->prof_id, kern_regs->eip, 0x0, 0, 0, 0);
+#if defined(__i386__)
+ dtrace_probe(prof->prof_id, saved_state32(kern_regs)->eip, 0x0, 0, 0, 0);
+#elif defined(__x86_64__)
+ dtrace_probe(prof->prof_id, saved_state64(kern_regs)->isf.rip, 0x0, 0, 0, 0);
+#else
+#error Unknown arch
+#endif
} else {
+ pal_register_cache_state(current_thread(), VALID);
/* Possibly a user interrupt */
x86_saved_state_t *tagged_regs = (x86_saved_state_t *)find_user_regs(current_thread());
x86_saved_state32_t *regs = saved_state32(tagged_regs);
dtrace_probe(prof->prof_id, 0x0, regs->eip, 0, 0, 0);
- }
+ }
}
#else
#error Unknown architecture
dtrace_probe(prof->prof_id, CPU->cpu_profile_pc,
CPU->cpu_profile_upc, 0, 0, 0);
#else
-#if defined(__ppc__) || defined(__ppc64__)
- struct savearea *sv = find_kern_regs(current_thread());
-
- if (sv) {
- if (USERMODE(sv->save_srr1)) {
- dtrace_probe(prof->prof_id, 0x0, sv->save_srr0, 0, 0, 0);
- } else {
- dtrace_probe(prof->prof_id, sv->save_srr0, 0x0, 0, 0, 0);
- }
- } else {
- dtrace_probe(prof->prof_id, 0xcafebabe,
- 0x0, 0, 0, 0); /* XXX_BOGUS also see profile_usermode() below. */
- }
-#elif defined(__i386__) || defined(__x86_64__)
- x86_saved_state32_t *kern_regs = find_kern_regs(current_thread());
+#if defined(__i386__) || defined(__x86_64__)
+ x86_saved_state_t *kern_regs = find_kern_regs(current_thread());
if (NULL != kern_regs) {
/* Kernel was interrupted. */
- dtrace_probe(prof->prof_id, kern_regs->eip, 0x0, 0, 0, 0);
+#if defined(__i386__)
+ dtrace_probe(prof->prof_id, saved_state32(kern_regs)->eip, 0x0, 0, 0, 0);
+#elif defined(__x86_64__)
+ dtrace_probe(prof->prof_id, saved_state64(kern_regs)->isf.rip, 0x0, 0, 0, 0);
+#else
+#error Unknown arch
+#endif
} else {
+ pal_register_cache_state(current_thread(), VALID);
/* Possibly a user interrupt */
x86_saved_state_t *tagged_regs = (x86_saved_state_t *)find_user_regs(current_thread());
x86_saved_state32_t *regs = saved_state32(tagged_regs);
dtrace_probe(prof->prof_id, 0x0, regs->eip, 0, 0, 0);
- }
+ }
}
#else
#error Unknown architecture
static void
profile_provide(void *arg, const dtrace_probedesc_t *desc)
{
+#pragma unused(arg) /* __APPLE__ */
int i, j, rate, kind;
hrtime_t val = 0, mult = 1, len;
const char *name, *suffix = NULL;
+#if !defined(__APPLE__)
const struct {
char *prefix;
int kind;
{ "d", NANOSEC * (hrtime_t)(24 * 60 * 60) },
{ "day", NANOSEC * (hrtime_t)(24 * 60 * 60) },
{ "hz", 0 },
-#if !defined(__APPLE__)
{ NULL }
+ };
#else
+ const struct {
+ const char *prefix;
+ int kind;
+ } types[] = {
+ { PROF_PREFIX_PROFILE, PROF_PROFILE },
+ { PROF_PREFIX_TICK, PROF_TICK },
{ NULL, 0 }
-#endif /* __APPLE__ */
};
+ const struct {
+ const char *name;
+ hrtime_t mult;
+ } suffixes[] = {
+ { "ns", NANOSEC / NANOSEC },
+ { "nsec", NANOSEC / NANOSEC },
+ { "us", NANOSEC / MICROSEC },
+ { "usec", NANOSEC / MICROSEC },
+ { "ms", NANOSEC / MILLISEC },
+ { "msec", NANOSEC / MILLISEC },
+ { "s", NANOSEC / SEC },
+ { "sec", NANOSEC / SEC },
+ { "m", NANOSEC * (hrtime_t)60 },
+ { "min", NANOSEC * (hrtime_t)60 },
+ { "h", NANOSEC * (hrtime_t)(60 * 60) },
+ { "hour", NANOSEC * (hrtime_t)(60 * 60) },
+ { "d", NANOSEC * (hrtime_t)(24 * 60 * 60) },
+ { "day", NANOSEC * (hrtime_t)(24 * 60 * 60) },
+ { "hz", 0 },
+ { NULL, 0 }
+ };
+#endif /* __APPLE__ */
+
+
if (desc == NULL) {
char n[PROF_NAMELEN];
/*
* If no description was provided, provide all of our probes.
*/
+#if !defined(__APPLE__)
for (i = 0; i < sizeof (profile_rates) / sizeof (int); i++) {
+#else
+ for (i = 0; i < (int)(sizeof (profile_rates) / sizeof (int)); i++) {
+#endif /* __APPLE__ */
if ((rate = profile_rates[i]) == 0)
continue;
profile_create(NANOSEC / rate, n, PROF_PROFILE);
}
+#if !defined(__APPLE__)
for (i = 0; i < sizeof (profile_ticks) / sizeof (int); i++) {
+#else
+ for (i = 0; i < (int)(sizeof (profile_ticks) / sizeof (int)); i++) {
+#endif /* __APPLE__ */
if ((rate = profile_ticks[i]) == 0)
continue;
* Look-up the suffix to determine the multiplier.
*/
for (i = 0, mult = 0; suffixes[i].name != NULL; i++) {
+#if !defined(__APPLE__)
if (strcasecmp(suffixes[i].name, suffix) == 0) {
mult = suffixes[i].mult;
break;
}
+#else
+ if (strncasecmp(suffixes[i].name, suffix, strlen(suffixes[i].name) + 1) == 0) {
+ mult = suffixes[i].mult;
+ break;
+ }
+#endif /* __APPLE__ */
}
if (suffixes[i].name == NULL && *suffix != '\0')
static void
profile_destroy(void *arg, dtrace_id_t id, void *parg)
{
+#pragma unused(arg,id) /* __APPLE__ */
profile_probe_t *prof = parg;
ASSERT(prof->prof_cyclic == CYCLIC_NONE);
/*ARGSUSED*/
static void
-profile_online(void *arg, cpu_t *cpu, cyc_handler_t *hdlr, cyc_time_t *when)
+profile_online(void *arg, dtrace_cpu_t *cpu, cyc_handler_t *hdlr, cyc_time_t *when)
{
+#pragma unused(cpu) /* __APPLE__ */
profile_probe_t *prof = arg;
profile_probe_percpu_t *pcpu;
/*ARGSUSED*/
static void
-profile_offline(void *arg, cpu_t *cpu, void *oarg)
+profile_offline(void *arg, dtrace_cpu_t *cpu, void *oarg)
{
profile_probe_percpu_t *pcpu = oarg;
ASSERT(pcpu->profc_probe == arg);
#if !defined(__APPLE__)
kmem_free(pcpu, sizeof (profile_probe_percpu_t));
+#else
+#pragma unused(pcpu,arg,cpu) /* __APPLE__ */
#endif /* __APPLE__ */
}
/*ARGSUSED*/
-static void
+static int
profile_enable(void *arg, dtrace_id_t id, void *parg)
{
+#pragma unused(arg,id) /* __APPLE__ */
profile_probe_t *prof = parg;
cyc_omni_handler_t omni;
cyc_handler_t hdlr;
prof->prof_cyclic = (cyclic_id_t)cyclic_add_omni(&omni); /* cast puns cyclic_id_list_t with cyclic_id_t */
}
#endif /* __APPLE__ */
+ return(0);
}
/*ARGSUSED*/
#if !defined(__APPLE__)
cyclic_remove(prof->prof_cyclic);
#else
+#pragma unused(arg,id)
if (prof->prof_kind == PROF_TICK) {
cyclic_timer_remove(prof->prof_cyclic);
} else {
return (DDI_FAILURE);
}
+#if !defined(__APPLE__)
if (ddi_create_minor_node(devi, "profile", S_IFCHR, 0,
DDI_PSEUDO, NULL) == DDI_FAILURE ||
dtrace_register("profile", &profile_attr,
ddi_remove_minor_node(devi, NULL);
return (DDI_FAILURE);
}
-
-#if !defined(__APPLE__)
+
profile_max = ddi_getprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
"profile-max-probes", PROFILE_MAX_DEFAULT);
#else
+ if (ddi_create_minor_node(devi, "profile", S_IFCHR, 0,
+ DDI_PSEUDO, 0) == DDI_FAILURE ||
+ dtrace_register("profile", &profile_attr,
+ DTRACE_PRIV_KERNEL | DTRACE_PRIV_USER, NULL,
+ &profile_pops, NULL, &profile_id) != 0) {
+ ddi_remove_minor_node(devi, NULL);
+ return (DDI_FAILURE);
+ }
+
profile_max = PROFILE_MAX_DEFAULT;
#endif /* __APPLE__ */
return;
}
- profile_attach( (dev_info_t *)majdevno, DDI_ATTACH );
+ profile_attach( (dev_info_t *)(uintptr_t)majdevno, DDI_ATTACH );
gProfileInited = 1;
} else
projects / apple / xnu.git / blobdiff