/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#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 <kern/telemetry.h>
+#include <kern/ecc.h>
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <stdarg.h>
-#if !MACH_KDP
+#if !(MACH_KDP && CONFIG_KDP_INTERACTIVE_DEBUGGING)
#include <kdp/kdp_udp.h>
#endif
#include <libkern/kernel_mach_header.h>
#include <uuid/uuid.h>
+#if (defined(__arm64__) || defined(NAND_PANIC_DEVICE)) && !defined(LEGACY_PANIC_LOGS)
+#include <pexpert/pexpert.h> /* For gPanicBase */
+#endif
+
unsigned int halt_in_debugger = 0;
unsigned int switch_debugger = 0;
unsigned int current_debugger = 0;
unsigned int systemLogDiags = FALSE;
unsigned int panicDebugging = FALSE;
unsigned int logPanicDataToScreen = FALSE;
+unsigned int kdebug_serial = FALSE;
int mach_assert = 1;
unsigned int return_on_panic = 0;
unsigned long panic_caller;
-#if CONFIG_EMBEDDED
-#define DEBUG_BUF_SIZE (PAGE_SIZE)
-#else
#define DEBUG_BUF_SIZE (3 * PAGE_SIZE)
-#endif
+/* debug_buf is directly linked with iBoot panic region for ARM64 targets */
+#if (defined(__arm64__) || defined(NAND_PANIC_DEVICE)) && !defined(LEGACY_PANIC_LOGS)
+char *debug_buf_addr = NULL;
+char *debug_buf_ptr = NULL;
+unsigned int debug_buf_size = 0;
+#else
char debug_buf[DEBUG_BUF_SIZE];
+__used char *debug_buf_addr = debug_buf;
char *debug_buf_ptr = debug_buf;
unsigned int debug_buf_size = sizeof(debug_buf);
+#endif
static char model_name[64];
-/* uuid_string_t */ char kernel_uuid[37];
+unsigned char *kernel_uuid;
+/* uuid_string_t */ char kernel_uuid_string[37];
static spl_t panic_prologue(const char *str);
static void panic_epilogue(spl_t s);
#undef Assert
#endif
-void
+void __attribute__((noinline))
Assert(
const char *file,
int line,
}
saved_return_on_panic = return_on_panic;
- return_on_panic = 1;
+
+ /*
+ * If we don't have a debugger configured, returning from an
+ * assert is a bad, bad idea; there is no guarantee that we
+ * didn't simply assert before we were able to restart the
+ * platform.
+ */
+ if (current_debugger != NO_CUR_DB)
+ return_on_panic = 1;
panic_plain("%s:%d Assertion failed: %s", file, line, expression);
simple_unlock(&panic_lock); \
MACRO_END
-
void
panic_init(void)
{
uuid = getuuidfromheader(&_mh_execute_header, &uuidlen);
if ((uuid != NULL) && (uuidlen == sizeof(uuid_t))) {
- uuid_unparse_upper(*(uuid_t *)uuid, kernel_uuid);
+ kernel_uuid = uuid;
+ uuid_unparse_upper(*(uuid_t *)uuid, kernel_uuid_string);
}
simple_lock_init(&panic_lock, 0);
{
if (debug_buf_size != 0)
return;
+#if (defined(__arm64__) || defined(NAND_PANIC_DEVICE)) && !defined(LEGACY_PANIC_LOGS)
+ if (!gPanicBase) {
+ printf("debug_log_init: Error!! gPanicBase is still not initialized\n");
+ return;
+ }
+ /* Shift debug buf start location and size by 8 bytes for magic header and crc value */
+ debug_buf_addr = (char*)gPanicBase + 8;
+ debug_buf_ptr = debug_buf_addr;
+ debug_buf_size = gPanicSize - 8;
+#else
+ debug_buf_addr = debug_buf;
debug_buf_ptr = debug_buf;
debug_buf_size = sizeof(debug_buf);
+#endif
}
#if defined(__i386__) || defined(__x86_64__)
panic("panic");
}
+extern unsigned int write_trace_on_panic;
+
static spl_t
panic_prologue(const char *str)
{
spl_t s;
- if (kdebug_enable) {
- ml_set_interrupts_enabled(TRUE);
- kdbg_dump_trace_to_file("/var/tmp/panic.trace");
+ if (write_trace_on_panic && kdebug_enable) {
+ if (get_preemption_level() == 0 && !ml_at_interrupt_context()) {
+ ml_set_interrupts_enabled(TRUE);
+ kdbg_dump_trace_to_file("/var/tmp/panic.trace");
+ }
}
s = splhigh();
va_list listp;
spl_t s;
+
/* panic_caller is initialized to 0. If set, don't change it */
if ( ! panic_caller )
panic_caller = (unsigned long)(char *)__builtin_return_address(0);
va_list listp;
spl_t s;
+
/* panic_caller is initialized to 0. If set, don't change it */
if ( ! panic_caller )
panic_caller = (unsigned long)(char *)__builtin_return_address(0);
debug_putc(char c)
{
if ((debug_buf_size != 0) &&
- ((debug_buf_ptr-debug_buf) < (int)debug_buf_size)) {
+ ((debug_buf_ptr-debug_buf_addr) < (int)debug_buf_size)) {
*debug_buf_ptr=c;
debug_buf_ptr++;
}
strlcpy(model_name, model_string, sizeof(model_name));
}
-static void panic_display_model_name(void) {
+void panic_display_model_name(void) {
char tmp_model_name[sizeof(model_name)];
if (ml_nofault_copy((vm_offset_t) &model_name, (vm_offset_t) &tmp_model_name, sizeof(model_name)) != sizeof(model_name))
kdb_printf("System model name: %s\n", tmp_model_name);
}
-static void panic_display_kernel_uuid(void) {
- char tmp_kernel_uuid[sizeof(kernel_uuid)];
+void panic_display_kernel_uuid(void) {
+ char tmp_kernel_uuid[sizeof(kernel_uuid_string)];
- if (ml_nofault_copy((vm_offset_t) &kernel_uuid, (vm_offset_t) &tmp_kernel_uuid, sizeof(kernel_uuid)) != sizeof(kernel_uuid))
+ if (ml_nofault_copy((vm_offset_t) &kernel_uuid_string, (vm_offset_t) &tmp_kernel_uuid, sizeof(kernel_uuid_string)) != sizeof(kernel_uuid_string))
return;
if (tmp_kernel_uuid[0] != '\0')
kdb_printf("Kernel UUID: %s\n", tmp_kernel_uuid);
}
-static void panic_display_kernel_aslr(void) {
-#if defined(__x86_64__)
+void panic_display_kernel_aslr(void) {
if (vm_kernel_slide) {
- kdb_printf("Kernel slide: 0x%016lx\n", vm_kernel_slide);
+ kdb_printf("Kernel slide: 0x%016lx\n", (unsigned long) vm_kernel_slide);
kdb_printf("Kernel text base: %p\n", (void *) vm_kernel_stext);
}
+}
+
+void panic_display_hibb(void) {
+#if defined(__i386__) || defined (__x86_64__)
+ kdb_printf("__HIB text base: %p\n", (void *) vm_hib_base);
#endif
}
kdb_printf("\nKernel version:\n%s\n",version);
panic_display_kernel_uuid();
panic_display_kernel_aslr();
+ panic_display_hibb();
panic_display_pal_info();
panic_display_model_name();
panic_display_uptime();
}
}
+#if CONFIG_ECC_LOGGING
+__private_extern__ void panic_display_ecc_errors()
+{
+ uint32_t count = ecc_log_get_correction_count();
+
+ if (count > 0) {
+ kdb_printf("ECC Corrections:%u\n", count);
+ }
+}
+#endif /* CONFIG_ECC_LOGGING */
+
#if CONFIG_ZLEAKS
extern boolean_t panic_include_ztrace;
extern struct ztrace* top_ztrace;
+void panic_print_symbol_name(vm_address_t search);
+
/*
* 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
{
if(panic_include_ztrace == TRUE) {
unsigned int i = 0;
+ boolean_t keepsyms = FALSE;
+
+ PE_parse_boot_argn("keepsyms", &keepsyms, sizeof (keepsyms));
struct ztrace top_ztrace_copy;
/* Make sure not to trip another panic if there's something wrong with memory */
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]);
+ kdb_printf("%p ", top_ztrace_copy.zt_stack[i]);
+ if (keepsyms) {
+ panic_print_symbol_name((vm_address_t)top_ztrace_copy.zt_stack[i]);
+ }
+ kdb_printf("\n");
}
/* 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);
}
#endif /* CONFIG_ZLEAKS */
-#if !MACH_KDP
-static struct ether_addr kdp_current_mac_address = {{0, 0, 0, 0, 0, 0}};
+#if ! (MACH_KDP && CONFIG_KDP_INTERACTIVE_DEBUGGING)
+static struct kdp_ether_addr kdp_current_mac_address = {{0, 0, 0, 0, 0, 0}};
/* XXX ugly forward declares to stop warnings */
void *kdp_get_interface(void);
-void kdp_set_ip_and_mac_addresses(struct in_addr *, struct ether_addr *);
+void kdp_set_ip_and_mac_addresses(struct kdp_in_addr *, struct kdp_ether_addr *);
void kdp_set_gateway_mac(void *);
void kdp_set_interface(void *);
void kdp_register_send_receive(void *, void *);
kdp_get_ip_address(void )
{ return 0; }
-struct ether_addr
+struct kdp_ether_addr
kdp_get_mac_addr(void)
{
return kdp_current_mac_address;
void
kdp_set_ip_and_mac_addresses(
- __unused struct in_addr *ipaddr,
- __unused struct ether_addr *macaddr)
+ __unused struct kdp_in_addr *ipaddr,
+ __unused struct kdp_ether_addr *macaddr)
{}
void
kdp_unregister_send_receive(__unused void *send, __unused void *receive)
{}
-void
-kdp_snapshot_preflight(__unused int pid, __unused void * tracebuf,
- __unused uint32_t tracebuf_size, __unused uint32_t options)
+void kdp_register_link(__unused kdp_link_t link, __unused kdp_mode_t mode)
{}
-int
-kdp_stack_snapshot_geterror(void)
-{
- return -1;
-}
+void kdp_unregister_link(__unused kdp_link_t link, __unused kdp_mode_t mode)
+{}
-int
-kdp_stack_snapshot_bytes_traced(void)
-{
- return 0;
-}
+#endif
+#if !CONFIG_TELEMETRY
+int telemetry_gather(user_addr_t buffer __unused, uint32_t *length __unused, boolean_t mark __unused)
+{
+ return KERN_NOT_SUPPORTED;
+}
#endif
projects / apple / xnu.git / blobdiff