]> git.saurik.com Git - apple/xnu.git/blobdiff - osfmk/kern/debug.c
xnu-1504.7.4.tar.gz
[apple/xnu.git] / osfmk / kern / debug.c
index c7e01a134992f1cb91480582776b045f6adcee53..39aa1f425972716180df81c687d0f18a59145874 100644 (file)
 #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 <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 <sys/kdebug.h>
+#include <libkern/OSKextLibPrivate.h>
+
 unsigned int   halt_in_debugger = 0;
 unsigned int   switch_debugger = 0;
 unsigned int   current_debugger = 0;
@@ -106,10 +111,15 @@ unsigned int              panic_is_inited = 0;
 unsigned int           return_on_panic = 0;
 unsigned long          panic_caller;
 
-char *debug_buf;
-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];
 
@@ -126,15 +136,16 @@ struct pasc {
 
 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;
@@ -183,16 +194,11 @@ debug_log_init(void)
 {
        if (debug_buf_size != 0)
                return;
-       if (kmem_alloc(kernel_map, (vm_offset_t *) &debug_buf, PAGE_SIZE)
-                       != KERN_SUCCESS)
-               panic("cannot allocate debug_buf\n");
        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)
@@ -202,7 +208,17 @@ debug_log_init(void)
 #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(NULL);
+}
+
 void
 panic(const char *str, ...)
 {
@@ -211,6 +227,10 @@ panic(const char *str, ...)
        thread_t thread;
        wait_queue_t wq;
 
+
+       if (kdebug_enable)
+               kdbg_dump_trace_to_file("/var/tmp/panic.trace");
+
        s = splhigh();
        disable_preemption();
 
@@ -259,7 +279,7 @@ restart:
        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);
@@ -400,25 +420,81 @@ static void panic_display_model_name(void) {
                kdb_printf("System model name: %s\n", model_name);
 }
 
+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[];
 
 __private_extern__ void panic_display_system_configuration(void) {
-       static boolean_t config_displayed = FALSE;
+       static volatile boolean_t config_displayed = FALSE;
 
        panic_display_process_name();
        if (config_displayed == FALSE) {
+               config_displayed = TRUE;
                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_model_name();
-               config_displayed = TRUE;
+               panic_display_uptime();
+#if    defined(__i386__) || defined(__x86_64__)
+               pmap_pagetable_corruption_msg_log(&kdb_printf);
+#endif /* i386 || x86_64 */
+               panic_display_zprint();
+               kext_dump_panic_lists(&kdb_log);
+       }
+}
+
+extern zone_t          first_zone;
+extern unsigned int    num_zones, stack_total;
+
+#if defined(__i386__) || defined (__x86_64__)
+extern unsigned int    inuse_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 !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);