#include <mach_kdp.h>
#include <kern/cpu_number.h>
+#include <kern/kalloc.h>
#include <kern/lock.h>
#include <kern/spl.h>
#include <kern/thread.h>
#include <kern/assert.h>
#include <kern/sched_prim.h>
#include <kern/misc_protos.h>
+#include <kern/clock.h>
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <stdarg.h>
#include <kdp/kdp_udp.h>
#endif
-#ifdef __ppc__
-#include <ppc/Firmware.h>
-#include <ppc/low_trace.h>
-#endif
-
-#ifdef __i386__
+#if defined(__i386__) || defined(__x86_64__)
#include <i386/cpu_threads.h>
#include <i386/pmCPU.h>
#endif
#include <IOKit/IOPlatformExpert.h>
+#include <machine/pal_routines.h>
+
+#include <sys/kdebug.h>
+#include <libkern/OSKextLibPrivate.h>
+#include <libkern/OSAtomic.h>
+#include <libkern/kernel_mach_header.h>
+#include <uuid/uuid.h>
unsigned int halt_in_debugger = 0;
unsigned int switch_debugger = 0;
unsigned int return_on_panic = 0;
unsigned long panic_caller;
-char debug_buf[PAGE_SIZE];
-ppnum_t debug_buf_page;
-char *debug_buf_ptr;
-unsigned int debug_buf_size;
+#if CONFIG_EMBEDDED
+#define DEBUG_BUF_SIZE (PAGE_SIZE)
+#else
+#define DEBUG_BUF_SIZE (3 * PAGE_SIZE)
+#endif
+
+char debug_buf[DEBUG_BUF_SIZE];
+char *debug_buf_ptr = debug_buf;
+unsigned int debug_buf_size = sizeof(debug_buf);
static char model_name[64];
+/* uuid_string_t */ char kernel_uuid[37];
struct pasc {
unsigned a: 7;
typedef struct pasc pasc_t;
+/* Prevent CPP from breaking the definition below */
+#if CONFIG_NO_PANIC_STRINGS
+#undef Assert
+#endif
+
void
Assert(
const char *file,
int line,
-#if CONFIG_NO_PANIC_STRINGS
- __unused const char *expression
-#else
const char *expression
-#endif
)
{
int saved_return_on_panic;
void
panic_init(void)
{
+ unsigned long uuidlen = 0;
+ void *uuid;
+
+ uuid = getuuidfromheader(&_mh_execute_header, &uuidlen);
+ if ((uuid != NULL) && (uuidlen == sizeof(uuid_t))) {
+ uuid_unparse_upper(*(uuid_t *)uuid, kernel_uuid);
+ }
+
simple_lock_init(&panic_lock, 0);
panic_is_inited = 1;
panic_caller = 0;
if (debug_buf_size != 0)
return;
debug_buf_ptr = debug_buf;
- debug_buf_size = PAGE_SIZE;
- debug_buf_page = pmap_find_phys(kernel_pmap,
- (addr64_t)(uintptr_t)debug_buf_ptr);
+ debug_buf_size = sizeof(debug_buf);
}
-#if __i386__
+#if defined(__i386__) || defined(__x86_64__)
#define panic_stop() pmCPUHalt(PM_HALT_PANIC)
#define panic_safe() pmSafeMode(x86_lcpu(), PM_SAFE_FL_SAFE)
#define panic_normal() pmSafeMode(x86_lcpu(), PM_SAFE_FL_NORMAL)
#define panic_normal()
#endif
-#undef panic(...)
+/*
+ * Prevent CPP from breaking the definition below,
+ * since all clients get a #define to prepend line numbers
+ */
+#undef panic
+
+void _consume_panic_args(int a __unused, ...)
+{
+ panic("panic");
+}
+
void
panic(const char *str, ...)
{
thread_t thread;
wait_queue_t wq;
+#if defined(__i386__) || defined(__x86_64__)
+ /* Attempt to display the unparsed panic string */
+ const char *tstr = str;
+
+ kprintf("Panic initiated, string: ");
+ while (tstr && *tstr)
+ kprintf("%c", *tstr++);
+ kprintf("\n");
+#endif
+ if (kdebug_enable)
+ kdbg_dump_trace_to_file("/var/tmp/panic.trace");
+
s = splhigh();
disable_preemption();
panic_safe();
-#ifdef __ppc__
- lastTrace = LLTraceSet(0); /* Disable low-level tracing */
-#endif
-
thread = current_thread(); /* Get failing thread */
wq = thread->wait_queue; /* Save the old value */
thread->wait_queue = NULL; /* Clear the wait so we do not get double panics when we try locks */
panicwait = 1;
PANIC_UNLOCK();
- kdb_printf("panic(cpu %d caller 0x%08lX): ", (unsigned) paniccpu, panic_caller);
+ kdb_printf("panic(cpu %d caller 0x%lx): ", (unsigned) paniccpu, panic_caller);
if (str) {
va_start(listp, str);
_doprnt(str, &listp, consdebug_putc, 0);
}
/* In-place packing routines -- inefficient, but they're called at most once.
+ * Assumes "buflen" is a multiple of 8.
*/
int packA(char *inbuf, uint32_t length, uint32_t buflen)
unsigned int i, j = 0;
pasc_t pack;
- length = MIN(((length & ~7) +8), buflen);
+ length = MIN(((length + 7) & ~7), buflen);
for (i = 0; i < length; i+=8)
{
bcopy ((char *) &pack, inbuf + j, 7);
j += 7;
}
- return ((length * 7)/8);
+ return j;
}
void unpackA(char *inbuf, uint32_t length)
if (ml_nofault_copy((vm_offset_t) &model_name, (vm_offset_t) &tmp_model_name, sizeof(model_name)) != sizeof(model_name))
return;
- model_name[sizeof(model_name) - 1] = '\0';
+ tmp_model_name[sizeof(tmp_model_name) - 1] = '\0';
- if (model_name[0] != 0)
- kdb_printf("System model name: %s\n", model_name);
+ if (tmp_model_name[0] != 0)
+ kdb_printf("System model name: %s\n", tmp_model_name);
+}
+
+static void panic_display_kernel_uuid(void) {
+ char tmp_kernel_uuid[sizeof(kernel_uuid)];
+
+ if (ml_nofault_copy((vm_offset_t) &kernel_uuid, (vm_offset_t) &tmp_kernel_uuid, sizeof(kernel_uuid)) != sizeof(kernel_uuid))
+ return;
+
+ if (tmp_kernel_uuid[0] != '\0')
+ kdb_printf("Kernel UUID: %s\n", tmp_kernel_uuid);
+}
+
+static void panic_display_uptime(void) {
+ uint64_t uptime;
+ absolutetime_to_nanoseconds(mach_absolute_time(), &uptime);
+
+ kdb_printf("\nSystem uptime in nanoseconds: %llu\n", uptime);
}
extern const char version[];
extern char osversion[];
+static volatile uint32_t config_displayed = 0;
+
__private_extern__ void panic_display_system_configuration(void) {
- static boolean_t config_displayed = FALSE;
panic_display_process_name();
- if (config_displayed == FALSE) {
+ if (OSCompareAndSwap(0, 1, &config_displayed)) {
+ char buf[256];
+ if (strlcpy(buf, PE_boot_args(), sizeof(buf)))
+ kdb_printf("Boot args: %s\n", buf);
kdb_printf("\nMac OS version:\n%s\n",
(osversion[0] != 0) ? osversion : "Not yet set");
kdb_printf("\nKernel version:\n%s\n",version);
+ panic_display_kernel_uuid();
+ panic_display_pal_info();
panic_display_model_name();
- config_displayed = TRUE;
+ panic_display_uptime();
+ panic_display_zprint();
+#if CONFIG_ZLEAKS
+ panic_display_ztrace();
+#endif /* CONFIG_ZLEAKS */
+ kext_dump_panic_lists(&kdb_log);
+ }
+}
+
+extern zone_t first_zone;
+extern unsigned int num_zones, stack_total;
+extern unsigned long long stack_allocs;
+
+#if defined(__i386__) || defined (__x86_64__)
+extern unsigned int inuse_ptepages_count;
+extern long long alloc_ptepages_count;
+#endif
+
+extern boolean_t panic_include_zprint;
+
+__private_extern__ void panic_display_zprint()
+{
+ if(panic_include_zprint == TRUE) {
+
+ unsigned int i;
+ struct zone zone_copy;
+
+ if(first_zone!=NULL) {
+ if(ml_nofault_copy((vm_offset_t)first_zone, (vm_offset_t)&zone_copy, sizeof(struct zone)) == sizeof(struct zone)) {
+ for (i = 0; i < num_zones; i++) {
+ if(zone_copy.cur_size > (1024*1024)) {
+ kdb_printf("%.20s:%lu\n",zone_copy.zone_name,(uintptr_t)zone_copy.cur_size);
+ }
+
+ if(zone_copy.next_zone == NULL) {
+ break;
+ }
+
+ if(ml_nofault_copy((vm_offset_t)zone_copy.next_zone, (vm_offset_t)&zone_copy, sizeof(struct zone)) != sizeof(struct zone)) {
+ break;
+ }
+ }
+ }
+ }
+
+ kdb_printf("Kernel Stacks:%lu\n",(uintptr_t)(kernel_stack_size * stack_total));
+
+#if defined(__i386__) || defined (__x86_64__)
+ kdb_printf("PageTables:%lu\n",(uintptr_t)(PAGE_SIZE * inuse_ptepages_count));
+#endif
+
+ kdb_printf("Kalloc.Large:%lu\n",(uintptr_t)kalloc_large_total);
+ }
+}
+
+#if CONFIG_ZLEAKS
+extern boolean_t panic_include_ztrace;
+extern struct ztrace* top_ztrace;
+/*
+ * Prints the backtrace most suspected of being a leaker, if we paniced in the zone allocator.
+ * top_ztrace and panic_include_ztrace comes from osfmk/kern/zalloc.c
+ */
+__private_extern__ void panic_display_ztrace(void)
+{
+ if(panic_include_ztrace == TRUE) {
+ unsigned int i = 0;
+ struct ztrace top_ztrace_copy;
+
+ /* Make sure not to trip another panic if there's something wrong with memory */
+ if(ml_nofault_copy((vm_offset_t)top_ztrace, (vm_offset_t)&top_ztrace_copy, sizeof(struct ztrace)) == sizeof(struct ztrace)) {
+ kdb_printf("\nBacktrace suspected of leaking: (outstanding bytes: %lu)\n", (uintptr_t)top_ztrace_copy.zt_size);
+ /* Print the backtrace addresses */
+ for (i = 0; (i < top_ztrace_copy.zt_depth && i < MAX_ZTRACE_DEPTH) ; i++) {
+ kdb_printf("%p\n", top_ztrace_copy.zt_stack[i]);
+ }
+ /* Print any kexts in that backtrace, along with their link addresses so we can properly blame them */
+ kmod_panic_dump((vm_offset_t *)&top_ztrace_copy.zt_stack[0], top_ztrace_copy.zt_depth);
+ }
+ else {
+ kdb_printf("\nCan't access top_ztrace...\n");
+ }
+ kdb_printf("\n");
}
}
+#endif /* CONFIG_ZLEAKS */
#if !MACH_KDP
static struct ether_addr kdp_current_mac_address = {{0, 0, 0, 0, 0, 0}};
-unsigned int not_in_kdp = 1;
/* XXX ugly forward declares to stop warnings */
void *kdp_get_interface(void);
projects / apple / xnu.git / blobdiff