#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/misc_protos.h>
#include <kern/clock.h>
#include <kern/telemetry.h>
+#include <kern/ecc.h>
+#include <kern/kern_cdata.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/OSAtomic.h>
#include <libkern/kernel_mach_header.h>
#include <uuid/uuid.h>
+#include <mach_debug/zone_info.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 systemLogDiags = FALSE;
unsigned int panicDebugging = FALSE;
unsigned int logPanicDataToScreen = FALSE;
+unsigned int kdebug_serial = FALSE;
int mach_assert = 1;
#define DEBUG_BUF_SIZE (3 * PAGE_SIZE)
+/* 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];
unsigned char *kernel_uuid;
#undef Assert
#endif
-void
+void __attribute__((noinline))
Assert(
const char *file,
int line,
int saved_return_on_panic;
if (!mach_assert) {
+ kprintf("%s:%d non-fatal Assertion: %s", file, line, expression);
return;
}
simple_lock_init(&panic_lock, 0);
panic_is_inited = 1;
panic_caller = 0;
+
+ if (!PE_parse_boot_argn("assertions", &mach_assert, sizeof(mach_assert))) {
+ mach_assert = 1;
+ }
}
void
{
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) {
+ 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");
nestedpanic +=1;
PANIC_UNLOCK();
Debugger("double panic");
- printf("double panic: We are hanging here...\n");
+ // a printf statement here was removed to avoid a panic-loop caused
+ // by a panic from printf
panic_stop();
/* NOTREACHED */
}
panicstr = (char *)0;
PANIC_UNLOCK();
+#if DEVELOPMENT || DEBUG
if (return_on_panic) {
panic_normal();
enable_preemption();
splx(s);
return;
}
+#else
+ (void)s;
+#endif
kdb_printf("panic: We are hanging here...\n");
panic_stop();
/* NOTREACHED */
{
va_list listp;
spl_t s;
+ boolean_t old_doprnt_hide_pointers = doprnt_hide_pointers;
/* panic_caller is initialized to 0. If set, don't change it */
panic_caller = (unsigned long)(char *)__builtin_return_address(0);
s = panic_prologue(str);
+
+ /* Never hide pointers from panic logs. */
+ doprnt_hide_pointers = FALSE;
+
kdb_printf("panic(cpu %d caller 0x%lx): ", (unsigned) paniccpu, panic_caller);
if (str) {
va_start(listp, str);
*/
panicwait = 0;
Debugger("panic");
+
+ doprnt_hide_pointers = old_doprnt_hide_pointers;
+
panic_epilogue(s);
}
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++;
}
static void
panic_display_process_name(void) {
- char proc_name[32] = "Unknown";
+ /* because of scoping issues len(p_comm) from proc_t is hard coded here */
+ char proc_name[17] = "Unknown";
task_t ctask = 0;
void *cbsd_info = 0;
if (ml_nofault_copy((vm_offset_t)¤t_thread()->task, (vm_offset_t) &ctask, sizeof(task_t)) == sizeof(task_t))
- if(ml_nofault_copy((vm_offset_t)&ctask->bsd_info, (vm_offset_t)&cbsd_info, sizeof(&ctask->bsd_info)) == sizeof(&ctask->bsd_info))
+ if(ml_nofault_copy((vm_offset_t)&ctask->bsd_info, (vm_offset_t)&cbsd_info, sizeof(cbsd_info)) == sizeof(cbsd_info))
if (cbsd_info && (ml_nofault_copy((vm_offset_t) proc_name_address(cbsd_info), (vm_offset_t) &proc_name, sizeof(proc_name)) > 0))
proc_name[sizeof(proc_name) - 1] = '\0';
kdb_printf("\nBSD process name corresponding to current thread: %s\n", proc_name);
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) {
+void panic_display_kernel_uuid(void) {
char tmp_kernel_uuid[sizeof(kernel_uuid_string)];
if (ml_nofault_copy((vm_offset_t) &kernel_uuid_string, (vm_offset_t) &tmp_kernel_uuid, sizeof(kernel_uuid_string)) != sizeof(kernel_uuid_string))
}
}
+void panic_display_hibb(void) {
+#if defined(__i386__) || defined (__x86_64__)
+ kdb_printf("__HIB text base: %p\n", (void *) vm_hib_base);
+#endif
+}
+
static void panic_display_uptime(void) {
uint64_t uptime;
absolutetime_to_nanoseconds(mach_absolute_time(), &uptime);
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();
#endif
extern boolean_t panic_include_zprint;
+extern vm_offset_t panic_kext_memory_info;
+extern vm_size_t panic_kext_memory_size;
__private_extern__ void panic_display_zprint()
{
unsigned int i;
struct zone zone_copy;
+ kdb_printf("%-20s %10s %10s\n", "Zone Name", "Cur Size", "Free Size");
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);
+ kdb_printf("%-20s %10lu %10lu\n",zone_copy.zone_name, (uintptr_t)zone_copy.cur_size,(uintptr_t)(zone_copy.countfree * zone_copy.elem_size));
}
if(zone_copy.next_zone == NULL) {
}
}
- kdb_printf("Kernel Stacks:%lu\n",(uintptr_t)(kernel_stack_size * stack_total));
+ kdb_printf("%-20s %10lu\n", "Kernel Stacks", (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));
+ kdb_printf("%-20s %10lu\n", "PageTables",(uintptr_t)(PAGE_SIZE * inuse_ptepages_count));
#endif
- kdb_printf("Kalloc.Large:%lu\n",(uintptr_t)kalloc_large_total);
+ kdb_printf("%-20s %10lu\n", "Kalloc.Large", (uintptr_t)kalloc_large_total);
+ if (panic_kext_memory_info) {
+ mach_memory_info_t *mem_info = (mach_memory_info_t *)panic_kext_memory_info;
+ kdb_printf("\n%-5s %10s\n", "Kmod", "Size");
+ for (i = 0; i < VM_KERN_MEMORY_COUNT + VM_KERN_COUNTER_COUNT; i++) {
+ if (((mem_info[i].flags & VM_KERN_SITE_TYPE) == VM_KERN_SITE_KMOD) && (mem_info[i].size > (1024 * 1024))) {
+ kdb_printf("%-5lld %10lld\n", mem_info[i].site, mem_info[i].size);
+ }
+ }
+ }
+ }
+}
+
+#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
+#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_set_interface(void *);
void kdp_register_send_receive(void *, void *);
void kdp_unregister_send_receive(void *, void *);
-void kdp_snapshot_preflight(int, void *, uint32_t, uint32_t);
+void kdp_snapshot_preflight(int, void *, uint32_t, uint32_t, kcdata_descriptor_t, boolean_t enable_faulting);
int kdp_stack_snapshot_geterror(void);
-int kdp_stack_snapshot_bytes_traced(void);
+uint32_t kdp_stack_snapshot_bytes_traced(void);
void *
kdp_get_interface( 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;
-}
-
-int
-kdp_stack_snapshot_bytes_traced(void)
-{
- return 0;
-}
+void kdp_unregister_link(__unused kdp_link_t link, __unused kdp_mode_t mode)
+{}
#endif
projects / apple / xnu.git / blobdiff