/*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <mach/exception_types.h>
#include <kern/cpu_data.h>
#include <kern/debug.h>
+#include <kern/clock.h>
#include <kdp/kdp_core.h>
#include <kdp/kdp_internal.h>
#include <kdp/kdp_en_debugger.h>
+#include <kdp/kdp_callout.h>
#include <kdp/kdp_udp.h>
+#if CONFIG_SERIAL_KDP
+#include <kdp/kdp_serial.h>
+#endif
#include <vm/vm_map.h>
#include <vm/vm_protos.h>
#include <vm/vm_kern.h> /* kernel_map */
#include <mach/memory_object_types.h>
+#include <machine/pal_routines.h>
+
+#include <sys/msgbuf.h>
+
+/* we just want the link status flags, so undef KERNEL_PRIVATE for this
+ * header file. */
+#undef KERNEL_PRIVATE
+#include <net/if_media.h>
+#define KERNEL_PRIVATE
#include <string.h>
-#define DO_ALIGN 1 /* align all packet data accesses */
+#include <IOKit/IOPlatformExpert.h>
+#include <libkern/version.h>
+
+#define DO_ALIGN 1 /* align all packet data accesses */
+#define KDP_SERIAL_IPADDR 0xABADBABE /* IP address used for serial KDP */
+#define LINK_UP_STATUS (IFM_AVALID | IFM_ACTIVE)
extern int kdp_getc(void);
extern int reattach_wait;
+/* only used by IONetworkingFamily */
+typedef uint32_t (*kdp_link_t)(void);
+typedef boolean_t (*kdp_mode_t)(boolean_t);
+void kdp_register_link(kdp_link_t link, kdp_mode_t mode);
+void kdp_unregister_link(kdp_link_t link, kdp_mode_t mode);
+
static u_short ip_id; /* ip packet ctr, for ids */
/* @(#)udp_usrreq.c 2.2 88/05/23 4.0NFSSRC SMI; from UCB 7.1 6/5/86 */
boolean_t input;
} pkt, saved_reply;
+struct kdp_manual_pkt manual_pkt;
+
struct {
struct {
struct in_addr in;
volatile int kdp_flag = 0;
-static kdp_send_t kdp_en_send_pkt;
+static kdp_send_t kdp_en_send_pkt;
static kdp_receive_t kdp_en_recv_pkt;
+static kdp_link_t kdp_en_linkstatus;
+static kdp_mode_t kdp_en_setmode;
+#if CONFIG_SERIAL_KDP
+static void kdp_serial_send(void *rpkt, unsigned int rpkt_len);
+#define KDP_SERIAL_ENABLED() (kdp_en_send_pkt == kdp_serial_send)
+#else
+#define KDP_SERIAL_ENABLED() (0)
+#endif
-static u_long kdp_current_ip_address = 0;
+static uint32_t kdp_current_ip_address = 0;
static struct ether_addr kdp_current_mac_address = {{0, 0, 0, 0, 0, 0}};
static void *kdp_current_ifp;
static uint32_t router_ip = 0;
static uint32_t target_ip = 0;
+static boolean_t save_ip_in_nvram = FALSE;
+
static volatile boolean_t panicd_specified = FALSE;
static boolean_t router_specified = FALSE;
+static boolean_t corename_specified = FALSE;
static unsigned int panicd_port = CORE_REMOTE_PORT;
static struct ether_addr etherbroadcastaddr = {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}};
static boolean_t flag_panic_dump_in_progress = FALSE;
static boolean_t flag_router_mac_initialized = FALSE;
+static boolean_t flag_dont_abort_panic_dump = FALSE;
static boolean_t flag_arp_resolved = FALSE;
static unsigned int panic_timeout = 100000;
static unsigned int last_panic_port = CORE_REMOTE_PORT;
-unsigned int SEGSIZE = 512;
+#define KDP_THROTTLE_VALUE (10ULL * NSEC_PER_SEC)
-__unused static unsigned int PANIC_PKTSIZE = 518;
+uint32_t kdp_crashdump_pkt_size = 512;
+#define KDP_LARGE_CRASHDUMP_PKT_SIZE (1440 - 6 - sizeof(struct udpiphdr))
static char panicd_ip_str[20];
static char router_ip_str[20];
+static char corename_str[50];
static unsigned int panic_block = 0;
volatile unsigned int kdp_trigger_core_dump = 0;
extern unsigned int disableConsoleOutput;
-extern int kdp_vm_read( caddr_t, caddr_t, unsigned int);
extern void kdp_call(void);
extern boolean_t kdp_call_kdb(void);
extern int kern_dump(void);
+extern int inet_aton(const char *cp, struct in_addr *pin);
+extern int inet_ntoa2(struct in_addr * pin, char * cp, const int len);
+
void * kdp_get_interface(void);
-void kdp_set_gateway_mac(void *);
-void kdp_set_ip_and_mac_addresses(struct in_addr *, struct ether_addr *);
-void kdp_set_interface(void *);
+void kdp_set_gateway_mac(void *gatewaymac);
+void kdp_set_ip_and_mac_addresses(struct in_addr *ipaddr, struct ether_addr *);
+void kdp_set_interface(void *interface, const struct ether_addr *macaddr);
void kdp_disable_arp(void);
static void kdp_arp_reply(struct ether_arp *);
static volatile unsigned kdp_reentry_deadline;
+static uint32_t kdp_crashdump_feature_mask = KDP_FEATURE_LARGE_CRASHDUMPS | KDP_FEATURE_LARGE_PKT_SIZE;
+uint32_t kdp_feature_large_crashdumps, kdp_feature_large_pkt_size;
+
+char kdp_kernelversion_string[256];
+
static boolean_t gKDPDebug = FALSE;
#define KDP_DEBUG(...) if (gKDPDebug) printf(__VA_ARGS__);
static void *stack_snapshot_buf;
static uint32_t stack_snapshot_bufsize;
static int stack_snapshot_pid;
-static uint32_t stack_snapshot_options;
+static uint32_t stack_snapshot_flags;
+static uint32_t stack_snapshot_dispatch_offset;
static unsigned int old_debugger;
+#define SBLOCKSZ (2048)
+uint64_t kdp_dump_start_time = 0;
+uint64_t kdp_min_superblock_dump_time = ~1ULL;
+uint64_t kdp_max_superblock_dump_time = 0;
+uint64_t kdp_superblock_dump_time = 0;
+uint64_t kdp_superblock_dump_start_time = 0;
+
void
kdp_snapshot_preflight(int pid, void * tracebuf, uint32_t tracebuf_size,
- uint32_t options);
+ uint32_t flags, uint32_t dispatch_offset);
void
kdp_snapshot_postflight(void);
extern int
kdp_stackshot(int pid, void *tracebuf, uint32_t tracebuf_size,
- unsigned trace_options, uint32_t *pbytesTraced);
+ uint32_t flags, uint32_t dispatch_offset, uint32_t *pbytesTraced);
int
kdp_stack_snapshot_geterror(void);
}
+/* only send/receive data if the link is up */
+inline static void wait_for_link(void)
+{
+ static int first = 0;
+
+ if (!kdp_en_linkstatus)
+ return;
+
+ while (((*kdp_en_linkstatus)() & LINK_UP_STATUS) != LINK_UP_STATUS) {
+ if (first)
+ continue;
+
+ first = 1;
+ printf("Waiting for link to become available.\n");
+ kprintf("Waiting for link to become available.\n");
+ }
+}
+
+
+inline static void kdp_send_data(void *packet, unsigned int len)
+{
+ wait_for_link();
+ (*kdp_en_send_pkt)(packet, len);
+}
+
+
+inline static void kdp_receive_data(void *packet, unsigned int *len,
+ unsigned int timeout)
+{
+ wait_for_link();
+ (*kdp_en_recv_pkt)(packet, len, timeout);
+}
+
+
+
+void kdp_register_link(kdp_link_t link, kdp_mode_t mode)
+{
+ kdp_en_linkstatus = link;
+ kdp_en_setmode = mode;
+}
+
+void kdp_unregister_link(__unused kdp_link_t link, __unused kdp_mode_t mode)
+{
+ kdp_en_linkstatus = NULL;
+ kdp_en_setmode = NULL;
+}
+
void
kdp_register_send_receive(
kdp_send_t send,
{
unsigned int debug = 0;
- kdp_en_send_pkt = send;
- kdp_en_recv_pkt = receive;
-
debug_log_init();
kdp_timer_callout_init();
- PE_parse_boot_arg("debug", &debug);
+ PE_parse_boot_argn("debug", &debug, sizeof (debug));
+ kdp_crashdump_feature_mask = htonl(kdp_crashdump_feature_mask);
if (!debug)
return;
+ kdp_en_send_pkt = send;
+ kdp_en_recv_pkt = receive;
+
if (debug & DB_KDP_BP_DIS)
kdp_flag |= KDP_BP_DIS;
if (debug & DB_KDP_GETC_ENA)
if (debug & DB_PANICLOG_DUMP)
kdp_flag |= PANIC_LOG_DUMP;
- if (PE_parse_boot_arg ("_panicd_ip", panicd_ip_str))
+ if (PE_parse_boot_argn("_panicd_ip", panicd_ip_str, sizeof (panicd_ip_str)))
panicd_specified = TRUE;
- if (PE_parse_boot_arg ("_router_ip", router_ip_str))
+ if ((debug & DB_REBOOT_POST_CORE) && (panicd_specified == TRUE))
+ kdp_flag |= REBOOT_POST_CORE;
+
+ if (PE_parse_boot_argn("_router_ip", router_ip_str, sizeof (router_ip_str)))
router_specified = TRUE;
- if (!PE_parse_boot_arg ("panicd_port", &panicd_port))
+ if (!PE_parse_boot_argn("panicd_port", &panicd_port, sizeof (panicd_port)))
panicd_port = CORE_REMOTE_PORT;
+ if (PE_parse_boot_argn("_panicd_corename", &corename_str, sizeof (corename_str)))
+ corename_specified = TRUE;
+
kdp_flag |= KDP_READY;
if (current_debugger == NO_CUR_DB)
current_debugger = KDP_CUR_DB;
if (current_debugger == KDP_CUR_DB)
current_debugger = NO_CUR_DB;
kdp_flag &= ~KDP_READY;
- kdp_en_send_pkt = NULL;
- kdp_en_recv_pkt = NULL;
+ kdp_en_send_pkt = NULL;
+ kdp_en_recv_pkt = NULL;
}
/* Cache stack snapshot parameters in preparation for a trace */
void
-kdp_snapshot_preflight(int pid, void * tracebuf, uint32_t tracebuf_size, uint32_t options)
+kdp_snapshot_preflight(int pid, void * tracebuf, uint32_t tracebuf_size, uint32_t flags, uint32_t dispatch_offset)
{
stack_snapshot_pid = pid;
stack_snapshot_buf = tracebuf;
stack_snapshot_bufsize = tracebuf_size;
- stack_snapshot_options = options;
+ stack_snapshot_flags = flags;
+ stack_snapshot_dispatch_offset = dispatch_offset;
kdp_snapshot++;
/* Mark this debugger as active, since the polled mode driver that
* ordinarily does this may not be enabled (yet), or since KDB may be
static void
kdp_reply(
- unsigned short reply_port
- )
+ unsigned short reply_port,
+ const boolean_t sideband
+ )
{
struct udpiphdr aligned_ui, *ui = &aligned_ui;
struct ip aligned_ip, *ip = &aligned_ip;
if (!pkt.input)
kdp_panic("kdp_reply");
- pkt.off -= sizeof (struct udpiphdr);
+ pkt.off -= (unsigned int)sizeof (struct udpiphdr);
#if DO_ALIGN
bcopy((char *)&pkt.data[pkt.off], (char *)ui, sizeof(*ui));
#else
ui = (struct udpiphdr *)&pkt.data[pkt.off];
#endif
- ui->ui_next = ui->ui_prev = NULL;
+ ui->ui_next = ui->ui_prev = 0;
ui->ui_x1 = 0;
ui->ui_pr = IPPROTO_UDP;
ui->ui_len = htons((u_short)pkt.len + sizeof (struct udphdr));
bcopy((char *)ip, (char *)&pkt.data[pkt.off], sizeof(*ip));
#endif
- pkt.len += sizeof (struct udpiphdr);
+ pkt.len += (unsigned int)sizeof (struct udpiphdr);
- pkt.off -= sizeof (struct ether_header);
+ pkt.off -= (unsigned int)sizeof (struct ether_header);
eh = (struct ether_header *)&pkt.data[pkt.off];
enaddr_copy(eh->ether_shost, &tmp_enaddr);
enaddr_copy(&tmp_enaddr, eh->ether_dhost);
eh->ether_type = htons(ETHERTYPE_IP);
- pkt.len += sizeof (struct ether_header);
+ pkt.len += (unsigned int)sizeof (struct ether_header);
// save reply for possible retransmission
- bcopy((char *)&pkt, (char *)&saved_reply, sizeof(pkt));
+ assert(pkt.len <= KDP_MAXPACKET);
+ if (!sideband)
+ bcopy((char *)&pkt, (char *)&saved_reply, sizeof(saved_reply));
- (*kdp_en_send_pkt)(&pkt.data[pkt.off], pkt.len);
+ kdp_send_data(&pkt.data[pkt.off], pkt.len);
// increment expected sequence number
- exception_seq++;
+ if (!sideband)
+ exception_seq++;
}
static void
if (pkt.input)
kdp_panic("kdp_send");
- pkt.off -= sizeof (struct udpiphdr);
+ pkt.off -= (unsigned int)sizeof (struct udpiphdr);
#if DO_ALIGN
bcopy((char *)&pkt.data[pkt.off], (char *)ui, sizeof(*ui));
#else
ui = (struct udpiphdr *)&pkt.data[pkt.off];
#endif
- ui->ui_next = ui->ui_prev = NULL;
+ ui->ui_next = ui->ui_prev = 0;
ui->ui_x1 = 0;
ui->ui_pr = IPPROTO_UDP;
ui->ui_len = htons((u_short)pkt.len + sizeof (struct udphdr));
bcopy((char *)ip, (char *)&pkt.data[pkt.off], sizeof(*ip));
#endif
- pkt.len += sizeof (struct udpiphdr);
+ pkt.len += (unsigned int)sizeof (struct udpiphdr);
- pkt.off -= sizeof (struct ether_header);
+ pkt.off -= (unsigned int)sizeof (struct ether_header);
eh = (struct ether_header *)&pkt.data[pkt.off];
enaddr_copy(&adr.loc.ea, eh->ether_shost);
enaddr_copy(&adr.rmt.ea, eh->ether_dhost);
eh->ether_type = htons(ETHERTYPE_IP);
- pkt.len += sizeof (struct ether_header);
- (*kdp_en_send_pkt)(&pkt.data[pkt.off], pkt.len);
+ pkt.len += (unsigned int)sizeof (struct ether_header);
+ kdp_send_data(&pkt.data[pkt.off], pkt.len);
+}
+
+
+inline static void debugger_if_necessary(void)
+{
+ if ((current_debugger == KDP_CUR_DB) && halt_in_debugger) {
+ kdp_call();
+ halt_in_debugger=0;
+ }
}
-/* We don't interpret this pointer, we just give it to the
-bsd stack so it can decide when to set the MAC and IP info. */
+
+/* We don't interpret this pointer, we just give it to the bsd stack
+ so it can decide when to set the MAC and IP info. We'll
+ early initialize the MAC/IP info if we can so that we can use
+ KDP early in boot. These values may subsequently get over-written
+ when the interface gets initialized for real.
+*/
void
-kdp_set_interface(void *ifp)
+kdp_set_interface(void *ifp, const struct ether_addr *macaddr)
{
+ char kdpstr[80];
+ struct in_addr addr = { 0 };
+ unsigned int len;
+
kdp_current_ifp = ifp;
+
+ if (PE_parse_boot_argn("kdp_ip_addr", kdpstr, sizeof(kdpstr))) {
+ /* look for a static ip address */
+ if (inet_aton(kdpstr, &addr) == FALSE)
+ goto done;
+
+ goto config_network;
+ }
+
+ /* use saved ip address */
+ save_ip_in_nvram = TRUE;
+
+ len = sizeof(kdpstr);
+ if (PEReadNVRAMProperty("_kdp_ipstr", kdpstr, &len) == FALSE)
+ goto done;
+
+ kdpstr[len < sizeof(kdpstr) ? len : sizeof(kdpstr) - 1] = '\0';
+ if (inet_aton(kdpstr, &addr) == FALSE)
+ goto done;
+
+config_network:
+ kdp_current_ip_address = addr.s_addr;
+ if (macaddr)
+ kdp_current_mac_address = *macaddr;
+
+ /* we can't drop into the debugger at this point because the
+ link will likely not be up. when getDebuggerLinkStatus() support gets
+ added to the appropriate network drivers, adding the
+ following will enable this capability:
+ debugger_if_necessary();
+ */
+done:
+ return;
}
void *
struct in_addr *ipaddr,
struct ether_addr *macaddr)
{
- kdp_current_ip_address = ipaddr->s_addr;
- kdp_current_mac_address = *macaddr;
- if ((current_debugger == KDP_CUR_DB) && halt_in_debugger) {
- kdp_call();
- halt_in_debugger=0;
- }
+ static uint64_t last_time = (uint64_t) -1;
+ static uint64_t throttle_val = 0;
+ uint64_t cur_time;
+ char addr[16];
+
+ if (kdp_current_ip_address == ipaddr->s_addr)
+ goto done;
+
+ /* don't replace if serial debugging is configured */
+ if (!KDP_SERIAL_ENABLED() ||
+ (kdp_current_ip_address != KDP_SERIAL_IPADDR)) {
+ kdp_current_mac_address = *macaddr;
+ kdp_current_ip_address = ipaddr->s_addr;
+ }
+
+ if (save_ip_in_nvram == FALSE)
+ goto done;
+
+ if (inet_ntoa2(ipaddr, addr, sizeof(addr)) == FALSE)
+ goto done;
+
+ /* throttle writes if needed */
+ if (!throttle_val)
+ nanoseconds_to_absolutetime(KDP_THROTTLE_VALUE, &throttle_val);
+
+ cur_time = mach_absolute_time();
+ if (last_time == (uint64_t) -1 ||
+ ((cur_time - last_time) > throttle_val)) {
+ PEWriteNVRAMProperty("_kdp_ipstr", addr,
+ (const unsigned int) strlen(addr));
+ }
+ last_time = cur_time;
+
+done:
+ debugger_if_necessary();
}
void
kdp_set_gateway_mac(void *gatewaymac)
{
- router_mac = *(struct ether_addr *)gatewaymac;
- flag_router_mac_initialized = TRUE;
+ router_mac = *(struct ether_addr *)gatewaymac;
+ flag_router_mac_initialized = TRUE;
}
struct ether_addr
unsigned int
kdp_get_ip_address(void)
{
- return kdp_current_ip_address;
+ return (unsigned int)kdp_current_ip_address;
}
void
struct ether_arp aligned_ea, *ea = &aligned_ea;
unsigned arp_header_offset;
- arp_header_offset = sizeof(struct ether_header) + pkt.off;
+ arp_header_offset = (unsigned)sizeof(struct ether_header) + pkt.off;
memcpy((void *)ea, (void *)&pkt.data[arp_header_offset], sizeof(*ea));
switch(ntohs(ea->arp_op)) {
struct ether_addr my_enaddr;
eh = (struct ether_header *)&pkt.data[pkt.off];
- pkt.off += sizeof(struct ether_header);
+ pkt.off += (unsigned int)sizeof(struct ether_header);
if(ntohs(ea->arp_op) != ARPOP_REQUEST)
return;
(void)memcpy(eh->ether_shost, &my_enaddr, sizeof(eh->ether_shost));
eh->ether_type = htons(ETHERTYPE_ARP);
(void)memcpy(&pkt.data[pkt.off], ea, sizeof(*ea));
- pkt.off -= sizeof (struct ether_header);
+ pkt.off -= (unsigned int)sizeof (struct ether_header);
/* pkt.len is still the length we want, ether_header+ether_arp */
- (*kdp_en_send_pkt)(&pkt.data[pkt.off], pkt.len);
+ kdp_send_data(&pkt.data[pkt.off], pkt.len);
}
}
}
pkt.off = pkt.len = 0;
- (*kdp_en_recv_pkt)(pkt.data, &pkt.len, 3/* ms */);
+ kdp_receive_data(pkt.data, &pkt.len, 3/* ms */);
if (pkt.len == 0)
return;
if (pkt.len < (sizeof (struct ether_header) + sizeof (struct udpiphdr)))
return;
- pkt.off += sizeof (struct ether_header);
+ pkt.off += (unsigned int)sizeof (struct ether_header);
if (ntohs(eh->ether_type) != ETHERTYPE_IP) {
return;
}
ip = (struct ip *)&pkt.data[pkt.off];
#endif
- pkt.off += sizeof (struct udpiphdr);
+ pkt.off += (unsigned int)sizeof (struct udpiphdr);
if (ui->ui_pr != IPPROTO_UDP) {
return;
}
}
/* If we receive a kernel debugging packet whilst a
* core dump is in progress, abort the transfer and
- * enter the debugger.
+ * enter the debugger if not told otherwise.
*/
else
if (flag_panic_dump_in_progress)
{
- abort_panic_transfer();
+ if (!flag_dont_abort_panic_dump) {
+ abort_panic_transfer();
+ }
return;
}
/*
* Calculate kdp packet length.
*/
- pkt.len = ntohs((u_short)ui->ui_ulen) - sizeof (struct udphdr);
+ pkt.len = ntohs((u_short)ui->ui_ulen) - (unsigned int)sizeof (struct udphdr);
pkt.input = TRUE;
}
pkt.off = 0;
pkt.len = sizeof(struct ether_header) + sizeof(struct ether_arp);
/* Transmit */
- (*kdp_en_send_pkt)(&pkt.data[pkt.off], pkt.len);
+ kdp_send_data(&pkt.data[pkt.off], pkt.len);
}
static boolean_t
// check for retransmitted request
if (hdr->seq == (exception_seq - 1)) {
/* retransmit last reply */
- (*kdp_en_send_pkt)(&saved_reply.data[saved_reply.off],
- saved_reply.len);
+ kdp_send_data(&saved_reply.data[saved_reply.off],
+ saved_reply.len);
goto again;
- } else if (hdr->seq != exception_seq) {
+ } else if ((hdr->seq != exception_seq) &&
+ (hdr->request != KDP_CONNECT)) {
printf("kdp: bad sequence %d (want %d)\n",
hdr->seq, exception_seq);
goto again;
}
+ /* This is a manual side-channel to the main KDP protocol.
+ * A client like GDB/kgmacros can manually construct
+ * a request, set the input flag, issue a dummy KDP request,
+ * and then manually collect the result
+ */
+ if (manual_pkt.input) {
+ kdp_hdr_t *manual_hdr = (kdp_hdr_t *)&manual_pkt.data;
+ unsigned short manual_port_unused = 0;
+ if (!manual_hdr->is_reply) {
+ /* process */
+ kdp_packet((unsigned char *)&manual_pkt.data,
+ (int *)&manual_pkt.len,
+ &manual_port_unused);
+ }
+ manual_pkt.input = 0;
+ }
+
if (kdp_packet((unsigned char*)&pkt.data[pkt.off],
(int *)&pkt.len,
(unsigned short *)&reply_port)) {
- kdp_reply(reply_port);
+ boolean_t sideband = FALSE;
+
+ /* if it's an already connected error message,
+ * send a sideband reply for that. for successful connects,
+ * make sure the sequence number is correct. */
+ if (hdr->request == KDP_CONNECT) {
+ kdp_connect_reply_t *rp =
+ (kdp_connect_reply_t *) &pkt.data[pkt.off];
+ kdp_error_t err = rp->error;
+
+ if (err == KDPERR_NO_ERROR) {
+ exception_seq = hdr->seq;
+ } else if (err == KDPERR_ALREADY_CONNECTED) {
+ sideband = TRUE;
+ }
+ }
+
+ kdp_reply(reply_port, sideband);
}
again:
* the panic.log
*/
- printf( "ethernet MAC address: %02x:%02x:%02x:%02x:%02x:%02x\n",
- kdp_mac_addr.ether_addr_octet[0] & 0xff,
- kdp_mac_addr.ether_addr_octet[1] & 0xff,
- kdp_mac_addr.ether_addr_octet[2] & 0xff,
- kdp_mac_addr.ether_addr_octet[3] & 0xff,
- kdp_mac_addr.ether_addr_octet[4] & 0xff,
- kdp_mac_addr.ether_addr_octet[5] & 0xff);
+ if (KDP_SERIAL_ENABLED()) {
+ printf("Using serial KDP.\n");
+ kprintf("Using serial KDP.\n");
+ } else {
+ printf( "ethernet MAC address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ kdp_mac_addr.ether_addr_octet[0] & 0xff,
+ kdp_mac_addr.ether_addr_octet[1] & 0xff,
+ kdp_mac_addr.ether_addr_octet[2] & 0xff,
+ kdp_mac_addr.ether_addr_octet[3] & 0xff,
+ kdp_mac_addr.ether_addr_octet[4] & 0xff,
+ kdp_mac_addr.ether_addr_octet[5] & 0xff);
- kprintf( "ethernet MAC address: %02x:%02x:%02x:%02x:%02x:%02x\n",
- kdp_mac_addr.ether_addr_octet[0] & 0xff,
- kdp_mac_addr.ether_addr_octet[1] & 0xff,
- kdp_mac_addr.ether_addr_octet[2] & 0xff,
- kdp_mac_addr.ether_addr_octet[3] & 0xff,
- kdp_mac_addr.ether_addr_octet[4] & 0xff,
- kdp_mac_addr.ether_addr_octet[5] & 0xff);
+ kprintf( "ethernet MAC address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ kdp_mac_addr.ether_addr_octet[0] & 0xff,
+ kdp_mac_addr.ether_addr_octet[1] & 0xff,
+ kdp_mac_addr.ether_addr_octet[2] & 0xff,
+ kdp_mac_addr.ether_addr_octet[3] & 0xff,
+ kdp_mac_addr.ether_addr_octet[4] & 0xff,
+ kdp_mac_addr.ether_addr_octet[5] & 0xff);
- printf( "ip address: %d.%d.%d.%d\n",
- (ip_addr & 0xff000000) >> 24,
- (ip_addr & 0xff0000) >> 16,
- (ip_addr & 0xff00) >> 8,
- (ip_addr & 0xff));
+ printf( "ip address: %d.%d.%d.%d\n",
+ (ip_addr & 0xff000000) >> 24,
+ (ip_addr & 0xff0000) >> 16,
+ (ip_addr & 0xff00) >> 8,
+ (ip_addr & 0xff));
- kprintf( "ip address: %d.%d.%d.%d\n",
- (ip_addr & 0xff000000) >> 24,
- (ip_addr & 0xff0000) >> 16,
- (ip_addr & 0xff00) >> 8,
- (ip_addr & 0xff));
+ kprintf( "ip address: %d.%d.%d.%d\n",
+ (ip_addr & 0xff000000) >> 24,
+ (ip_addr & 0xff0000) >> 16,
+ (ip_addr & 0xff00) >> 8,
+ (ip_addr & 0xff));
+ }
printf("\nWaiting for remote debugger connection.\n");
return;
case 'r':
printf("Rebooting...\n");
- kdp_reboot();
+ kdp_machine_reboot();
break;
#if MACH_KDB
case 'k':
hdr = (kdp_hdr_t *)&pkt.data[pkt.off];
#endif
if (hdr->request == KDP_HOSTREBOOT) {
- kdp_reboot();
+ kdp_machine_reboot();
/* should not return! */
}
if (((hdr->request == KDP_CONNECT) || (hdr->request == KDP_REATTACH)) &&
if (kdp_packet((unsigned char *)&pkt.data[pkt.off],
(int *)&pkt.len,
(unsigned short *)&reply_port))
- kdp_reply(reply_port);
+ kdp_reply(reply_port, FALSE);
if (hdr->request == KDP_REATTACH) {
reattach_wait = 0;
hdr->request=KDP_DISCONNECT;
if (kdp_snapshot && (!panic_active()) && (panic_caller == 0)) {
stack_snapshot_ret = kdp_stackshot(stack_snapshot_pid,
stack_snapshot_buf, stack_snapshot_bufsize,
- stack_snapshot_options, &stack_snapshot_bytes_traced);
+ stack_snapshot_flags, stack_snapshot_dispatch_offset,
+ &stack_snapshot_bytes_traced);
return;
}
kdp.kdp_cpu = cpu_number();
kdp.kdp_thread = current_thread();
+ if (kdp_en_setmode)
+ (*kdp_en_setmode)(TRUE); /* enabling link mode */
+
if (pkt.input)
kdp_panic("kdp_raise_exception");
-
if (((kdp_flag & KDP_PANIC_DUMP_ENABLED) || (kdp_flag & PANIC_LOG_DUMP))
&& (panicstr != (char *) 0)) {
-
kdp_panic_dump();
+ if (kdp_flag & REBOOT_POST_CORE)
+ kdp_machine_reboot();
}
else
if ((kdp_flag & PANIC_CORE_ON_NMI) && (panicstr == (char *) 0) &&
*/
if (1 == kdp_trigger_core_dump) {
- kdp_flag &= ~PANIC_LOG_DUMP;
kdp_flag |= KDP_PANIC_DUMP_ENABLED;
kdp_panic_dump();
+ if (kdp_flag & REBOOT_POST_CORE)
+ kdp_machine_reboot();
kdp_trigger_core_dump = 0;
}
* available, it should work automatically.
*/
if (1 == flag_kdp_trigger_reboot) {
- kdp_reboot();
+ kdp_machine_reboot();
/* If we're still around, reset the flag */
flag_kdp_trigger_reboot = 0;
}
goto again;
exit_raise_exception:
+ if (kdp_en_setmode)
+ (*kdp_en_setmode)(FALSE); /* link cleanup */
enable_preemption();
}
kdp.reply_port = kdp.exception_port = 0;
kdp.is_halted = kdp.is_conn = FALSE;
kdp.exception_seq = kdp.conn_seq = 0;
+ kdp.session_key = 0;
+ pkt.input = manual_pkt.input = FALSE;
+ pkt.len = pkt.off = manual_pkt.len = 0;
}
struct corehdr *
const char *mode = "octet";
char modelen = strlen(mode);
+ size_t fmask_size = sizeof(KDP_FEATURE_MASK_STRING) + sizeof(kdp_crashdump_feature_mask);
+
pkt.off = sizeof (struct ether_header);
- pkt.len = length + ((request == KDP_WRQ) ? modelen : 0) +
- (corename ? strlen(corename): 0) + sizeof(struct corehdr);
+ pkt.len = (unsigned int)(length + ((request == KDP_WRQ) ? modelen + fmask_size : 0) +
+ (corename ? strlen(corename): 0) + sizeof(struct corehdr));
#if DO_ALIGN
bcopy((char *)&pkt.data[pkt.off], (char *)ui, sizeof(*ui));
#else
ui = (struct udpiphdr *)&pkt.data[pkt.off];
#endif
- ui->ui_next = ui->ui_prev = NULL;
+ ui->ui_next = ui->ui_prev = 0;
ui->ui_x1 = 0;
ui->ui_pr = IPPROTO_UDP;
ui->ui_len = htons((u_short)pkt.len + sizeof (struct udphdr));
- ui->ui_src.s_addr = kdp_current_ip_address;
+ ui->ui_src.s_addr = (uint32_t)kdp_current_ip_address;
/* Already in network byte order via inet_aton() */
ui->ui_dst.s_addr = panic_server_ip;
ui->ui_sport = htons(panicd_port);
bcopy((char *)ip, (char *)&pkt.data[pkt.off], sizeof(*ip));
#endif
- pkt.len += sizeof (struct udpiphdr);
+ pkt.len += (unsigned int)sizeof (struct udpiphdr);
- pkt.off += sizeof (struct udpiphdr);
+ pkt.off += (unsigned int)sizeof (struct udpiphdr);
coreh = (struct corehdr *) &pkt.data[pkt.off];
coreh->th_opcode = htons((u_short)request);
*cp++ = '\0';
cp += strlcpy (cp, mode, KDP_MAXPACKET - strlen(corename));
*cp++ = '\0';
+ cp += strlcpy(cp, KDP_FEATURE_MASK_STRING, sizeof(KDP_FEATURE_MASK_STRING));
+ *cp++ = '\0'; /* Redundant */
+ bcopy(&kdp_crashdump_feature_mask, cp, sizeof(kdp_crashdump_feature_mask));
+ kdp_crashdump_pkt_size = KDP_LARGE_CRASHDUMP_PKT_SIZE;
+ PE_parse_boot_argn("kdp_crashdump_pkt_size", &kdp_crashdump_pkt_size, sizeof(kdp_crashdump_pkt_size));
+ cp += sizeof(kdp_crashdump_feature_mask);
+ *(uint32_t *)cp = htonl(kdp_crashdump_pkt_size);
}
else
{
coreh->th_block = htonl((unsigned int) block);
}
- pkt.off -= sizeof (struct udpiphdr);
- pkt.off -= sizeof (struct ether_header);
+ pkt.off -= (unsigned int)sizeof (struct udpiphdr);
+ pkt.off -= (unsigned int)sizeof (struct ether_header);
eh = (struct ether_header *)&pkt.data[pkt.off];
enaddr_copy(&kdp_current_mac_address, eh->ether_shost);
enaddr_copy(&destination_mac, eh->ether_dhost);
eh->ether_type = htons(ETHERTYPE_IP);
- pkt.len += sizeof (struct ether_header);
+ pkt.len += (unsigned int)sizeof (struct ether_header);
return coreh;
}
+static int kdp_send_crashdump_seek(char *corename, uint64_t seek_off)
+{
+ int panic_error;
+
+ if (kdp_feature_large_crashdumps) {
+ panic_error = kdp_send_crashdump_pkt(KDP_SEEK, corename,
+ sizeof(seek_off),
+ &seek_off);
+ } else {
+ uint32_t off = (uint32_t) seek_off;
+ panic_error = kdp_send_crashdump_pkt(KDP_SEEK, corename,
+ sizeof(off), &off);
+ }
+
+ if (panic_error < 0) {
+ printf ("kdp_send_crashdump_pkt failed with error %d\n",
+ panic_error);
+ return panic_error;
+ }
+
+ return 0;
+}
+
int kdp_send_crashdump_data(unsigned int request, char *corename,
- unsigned int length, caddr_t txstart)
+ int64_t length, caddr_t txstart)
{
- caddr_t txend = txstart + length;
int panic_error = 0;
- if (length <= SEGSIZE) {
- if ((panic_error = kdp_send_crashdump_pkt(request, corename, length, (caddr_t) txstart)) < 0) {
+ while (length > 0) {
+ uint64_t chunk = MIN(kdp_crashdump_pkt_size, length);
+
+ panic_error = kdp_send_crashdump_pkt(request, corename, chunk,
+ txstart);
+ if (panic_error < 0) {
printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
- return panic_error ;
- }
- }
- else
- {
- while (txstart <= (txend - SEGSIZE)) {
- if ((panic_error = kdp_send_crashdump_pkt(KDP_DATA, NULL, SEGSIZE, txstart)) < 0) {
- printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
- return panic_error;
- }
- txstart += SEGSIZE;
- if (!(panic_block % 2000))
- printf(".");
- }
- if (txstart < txend) {
- kdp_send_crashdump_pkt(request, corename, (txend - txstart), txstart);
+ return panic_error;
}
+
+ txstart += chunk;
+ length -= chunk;
}
return 0;
}
+uint32_t kdp_crashdump_short_pkt;
+
int
kdp_send_crashdump_pkt(unsigned int request, char *corename,
- unsigned int length, void *panic_data)
+ uint64_t length, void *panic_data)
{
+ int poll_count;
struct corehdr *th = NULL;
- int poll_count = 2500;
-
- char rretries = 0, tretries = 0;
+ char rretries, tretries;
+
+ if (kdp_dump_start_time == 0) {
+ kdp_dump_start_time = mach_absolute_time();
+ kdp_superblock_dump_start_time = kdp_dump_start_time;
+ }
+ tretries = rretries = 0;
+ poll_count = KDP_CRASHDUMP_POLL_COUNT;
pkt.off = pkt.len = 0;
-
if (request == KDP_WRQ) /* longer timeout for initial request */
poll_count += 1000;
if (tretries > 2)
printf("TX retry #%d ", tretries );
- th = create_panic_header(request, corename, length, panic_block);
+ th = create_panic_header(request, corename, (unsigned)length, panic_block);
if (request == KDP_DATA) {
- if (!kdp_vm_read((caddr_t) panic_data, (caddr_t) th->th_data, length)) {
- memset ((caddr_t) th->th_data, 'X', length);
+ /* as all packets are kdp_crashdump_pkt_size in length, the last packet
+ * may end up with trailing bits. make sure that those
+ * bits aren't confusing. */
+ if (length < kdp_crashdump_pkt_size) {
+ kdp_crashdump_short_pkt++;
+ memset(th->th_data + length, 'Y',
+ kdp_crashdump_pkt_size - (uint32_t) length);
+ }
+
+ if (!kdp_machine_vm_read((mach_vm_address_t)(uintptr_t)panic_data, (caddr_t) th->th_data, length)) {
+ uintptr_t next_page = round_page((uintptr_t)panic_data);
+ memset((caddr_t) th->th_data, 'X', (size_t)length);
+ if ((next_page - ((uintptr_t) panic_data)) < length) {
+ uint64_t resid = length - (next_page - (intptr_t) panic_data);
+ if (!kdp_machine_vm_read((mach_vm_address_t)(uintptr_t)next_page, (caddr_t) th->th_data + (length - resid), resid)) {
+ memset((caddr_t) th->th_data + (length - resid), 'X', (size_t)resid);
+ }
+ }
}
}
else if (request == KDP_SEEK) {
- *(unsigned int *) th->th_data = htonl(*(unsigned int *) panic_data);
+ if (kdp_feature_large_crashdumps)
+ *(uint64_t *) th->th_data = OSSwapHostToBigInt64((*(uint64_t *) panic_data));
+ else
+ *(unsigned int *) th->th_data = htonl(*(unsigned int *) panic_data);
}
- (*kdp_en_send_pkt)(&pkt.data[pkt.off], pkt.len);
+ kdp_send_data(&pkt.data[pkt.off], pkt.len);
/* Listen for the ACK */
RECEIVE_RETRY:
pkt.input = FALSE;
th = (struct corehdr *) &pkt.data[pkt.off];
-
+ if (request == KDP_WRQ) {
+ uint16_t opcode64 = ntohs(th->th_opcode);
+ uint16_t features64 = (opcode64 & 0xFF00)>>8;
+ if ((opcode64 & 0xFF) == KDP_ACK) {
+ kdp_feature_large_crashdumps = features64 & KDP_FEATURE_LARGE_CRASHDUMPS;
+ if (features64 & KDP_FEATURE_LARGE_PKT_SIZE) {
+ kdp_feature_large_pkt_size = 1;
+ }
+ else {
+ kdp_feature_large_pkt_size = 0;
+ kdp_crashdump_pkt_size = 512;
+ }
+ printf("Protocol features: 0x%x\n", (uint32_t) features64);
+ th->th_opcode = htons(KDP_ACK);
+ }
+ }
if (ntohs(th->th_opcode) == KDP_ACK && ntohl(th->th_block) == panic_block) {
}
else
kdp_us_spin ((tretries%4) * panic_timeout); /* capped linear backoff */
goto TRANSMIT_RETRY;
}
-
- panic_block++;
-
- if (request == KDP_EOF)
+
+ if (!(++panic_block % SBLOCKSZ)) {
+ uint64_t ctime;
+ kdb_printf_unbuffered(".");
+ ctime = mach_absolute_time();
+ kdp_superblock_dump_time = ctime - kdp_superblock_dump_start_time;
+ kdp_superblock_dump_start_time = ctime;
+ if (kdp_superblock_dump_time > kdp_max_superblock_dump_time)
+ kdp_max_superblock_dump_time = kdp_superblock_dump_time;
+ if (kdp_superblock_dump_time < kdp_min_superblock_dump_time)
+ kdp_min_superblock_dump_time = kdp_superblock_dump_time;
+ }
+
+ if (request == KDP_EOF) {
printf("\nTotal number of packets transmitted: %d\n", panic_block);
-
+ printf("Avg. superblock transfer abstime 0x%llx\n", ((mach_absolute_time() - kdp_dump_start_time) / panic_block) * SBLOCKSZ);
+ printf("Minimum superblock transfer abstime: 0x%llx\n", kdp_min_superblock_dump_time);
+ printf("Maximum superblock transfer abstime: 0x%llx\n", kdp_max_superblock_dump_time);
+ }
return 1;
}
return (s);
}
-extern char version[];
-
/* Horrid hack to extract xnu version if possible - a much cleaner approach
* would be to have the integrator run a script which would copy the
* xnu version into a string or an int somewhere at project submission
char *vptr;
strlcpy(vstr, "custom", 10);
- if (strlcpy(versionbuf, version, 95) < 95) {
- versionpos = strnstr(versionbuf, "xnu-", 90);
+ if (kdp_machine_vm_read((mach_vm_address_t)(uintptr_t)version, versionbuf, 128)) {
+ versionbuf[127] = '\0';
+ versionpos = strnstr(versionbuf, "xnu-", 115);
if (versionpos) {
strncpy(vstr, versionpos, sizeof(vstr));
vstr[sizeof(vstr)-1] = '\0';
return retval;
}
-extern char *inet_aton(const char *cp, struct in_addr *pin);
-extern int snprintf(char *str, size_t size, const char *format, ...);
+void
+kdp_set_dump_info(const uint32_t flags, const char *filename,
+ const char *destipstr, const char *routeripstr,
+ const uint32_t port)
+{
+ uint32_t cmd;
+
+ if (destipstr && (destipstr[0] != '\0')) {
+ strlcpy(panicd_ip_str, destipstr, sizeof(panicd_ip_str));
+ panicd_specified = 1;
+ }
+
+ if (routeripstr && (routeripstr[0] != '\0')) {
+ strlcpy(router_ip_str, routeripstr, sizeof(router_ip_str));
+ router_specified = 1;
+ }
+
+ if (filename && (filename[0] != '\0')) {
+ strlcpy(corename_str, filename, sizeof(corename_str));
+ corename_specified = TRUE;
+ } else {
+ corename_specified = FALSE;
+ }
+
+ if (port)
+ panicd_port = port;
+
+ /* on a disconnect, should we stay in KDP or not? */
+ noresume_on_disconnect = (flags & KDP_DUMPINFO_NORESUME) ? 1 : 0;
+
+ if ((flags & KDP_DUMPINFO_DUMP) == 0)
+ return;
+
+ /* the rest of the commands can modify kdp_flags */
+ cmd = flags & KDP_DUMPINFO_MASK;
+ if (cmd == KDP_DUMPINFO_DISABLE) {
+ kdp_flag &= ~KDP_PANIC_DUMP_ENABLED;
+ panicd_specified = 0;
+ kdp_trigger_core_dump = 0;
+ return;
+ }
+
+ kdp_flag &= ~REBOOT_POST_CORE;
+ if (flags & KDP_DUMPINFO_REBOOT)
+ kdp_flag |= REBOOT_POST_CORE;
+
+ kdp_flag &= ~PANIC_LOG_DUMP;
+ if (cmd == KDP_DUMPINFO_PANICLOG)
+ kdp_flag |= PANIC_LOG_DUMP;
+
+ kdp_flag &= ~SYSTEM_LOG_DUMP;
+ if (cmd == KDP_DUMPINFO_SYSTEMLOG)
+ kdp_flag |= SYSTEM_LOG_DUMP;
+
+ /* trigger a dump */
+ kdp_flag |= DBG_POST_CORE;
+
+ flag_dont_abort_panic_dump = (flags & KDP_DUMPINFO_NOINTR) ?
+ TRUE : FALSE;
+
+ reattach_wait = 1;
+ logPanicDataToScreen = 1;
+ disableConsoleOutput = 0;
+ disable_debug_output = 0;
+ kdp_trigger_core_dump = 1;
+}
+
+void
+kdp_get_dump_info(uint32_t *flags, char *filename, char *destipstr,
+ char *routeripstr, uint32_t *port)
+{
+ if (destipstr) {
+ if (panicd_specified)
+ strlcpy(destipstr, panicd_ip_str,
+ sizeof(panicd_ip_str));
+ else
+ destipstr[0] = '\0';
+ }
+
+ if (routeripstr) {
+ if (router_specified)
+ strlcpy(routeripstr, router_ip_str,
+ sizeof(router_ip_str));
+ else
+ routeripstr[0] = '\0';
+ }
+
+ if (filename) {
+ if (corename_specified)
+ strlcpy(filename, corename_str,
+ sizeof(corename_str));
+ else
+ filename[0] = '\0';
+
+ }
+
+ if (port)
+ *port = panicd_port;
+
+ if (flags) {
+ *flags = 0;
+ if (!panicd_specified)
+ *flags |= KDP_DUMPINFO_DISABLE;
+ else if (kdp_flag & PANIC_LOG_DUMP)
+ *flags |= KDP_DUMPINFO_PANICLOG;
+ else
+ *flags |= KDP_DUMPINFO_CORE;
+
+ if (noresume_on_disconnect)
+ *flags |= KDP_DUMPINFO_NORESUME;
+ }
+}
+
/* Primary dispatch routine for the system dump */
void
kdp_panic_dump(void)
{
- char corename[50];
char coreprefix[10];
int panic_error;
- uint64_t abstime;
- uint32_t current_ip = ntohl(kdp_current_ip_address);
+ uint64_t abstime;
+ uint32_t current_ip = ntohl((uint32_t)kdp_current_ip_address);
if (flag_panic_dump_in_progress) {
- printf("System dump aborted.\n");
+ kdb_printf("System dump aborted.\n");
goto panic_dump_exit;
}
printf("Entering system dump routine\n");
-
+
+ if (!kdp_en_recv_pkt || !kdp_en_send_pkt) {
+ kdb_printf("Error: No transport device registered for kernel crashdump\n");
+ return;
+ }
+
if (!panicd_specified) {
- printf("A dump server was not specified in the boot-args, terminating kernel core dump.\n");
+ kdb_printf("A dump server was not specified in the boot-args, terminating kernel core dump.\n");
goto panic_dump_exit;
}
kdp_get_xnu_version((char *) &pkt.data[0]);
- /* Panic log bit takes precedence over core dump bit */
- if ((panicstr != (char *) 0) && (kdp_flag & PANIC_LOG_DUMP))
- strncpy(coreprefix, "paniclog", sizeof(coreprefix));
- else
- strncpy(coreprefix, "core", sizeof(coreprefix));
+ if (!corename_specified) {
+ /* Panic log bit takes precedence over core dump bit */
+ if ((panicstr != (char *) 0) && (kdp_flag & PANIC_LOG_DUMP))
+ strlcpy(coreprefix, "paniclog", sizeof(coreprefix));
+ else if (kdp_flag & SYSTEM_LOG_DUMP)
+ strlcpy(coreprefix, "systemlog", sizeof(coreprefix));
+ else
+ strlcpy(coreprefix, "core", sizeof(coreprefix));
- abstime = mach_absolute_time();
- pkt.data[20] = '\0';
- snprintf (corename, sizeof(corename), "%s-%s-%d.%d.%d.%d-%x",
- coreprefix, &pkt.data[0],
- (current_ip & 0xff000000) >> 24,
- (current_ip & 0xff0000) >> 16,
- (current_ip & 0xff00) >> 8,
- (current_ip & 0xff),
- (unsigned int) (abstime & 0xffffffff));
+ abstime = mach_absolute_time();
+ pkt.data[20] = '\0';
+ snprintf (corename_str, sizeof(corename_str), "%s-%s-%d.%d.%d.%d-%x",
+ coreprefix, &pkt.data[0],
+ (current_ip & 0xff000000) >> 24,
+ (current_ip & 0xff0000) >> 16,
+ (current_ip & 0xff00) >> 8,
+ (current_ip & 0xff),
+ (unsigned int) (abstime & 0xffffffff));
+ }
if (0 == inet_aton(panicd_ip_str, (struct in_addr *) &panic_server_ip)) {
- printf("inet_aton() failed interpreting %s as a panic server IP\n", panicd_ip_str);
+ kdb_printf("inet_aton() failed interpreting %s as a panic server IP\n", panicd_ip_str);
}
else
- printf("Attempting connection to panic server configured at IP %s, port %d\n", panicd_ip_str, panicd_port);
+ kdb_printf("Attempting connection to panic server configured at IP %s, port %d\n", panicd_ip_str, panicd_port);
destination_mac = router_mac;
if (kdp_arp_resolve(panic_server_ip, &temp_mac)) {
- printf("Resolved %s's (or proxy's) link level address\n", panicd_ip_str);
+ kdb_printf("Resolved %s's (or proxy's) link level address\n", panicd_ip_str);
destination_mac = temp_mac;
}
else {
if (!flag_panic_dump_in_progress) goto panic_dump_exit;
if (router_specified) {
if (0 == inet_aton(router_ip_str, (struct in_addr *) &parsed_router_ip))
- printf("inet_aton() failed interpreting %s as an IP\n", router_ip_str);
+ kdb_printf("inet_aton() failed interpreting %s as an IP\n", router_ip_str);
else {
router_ip = parsed_router_ip;
if (kdp_arp_resolve(router_ip, &temp_mac)) {
destination_mac = temp_mac;
- printf("Routing through specified router IP %s (%d)\n", router_ip_str, router_ip);
+ kdb_printf("Routing through specified router IP %s (%d)\n", router_ip_str, router_ip);
}
}
}
if (!flag_panic_dump_in_progress) goto panic_dump_exit;
- printf("Transmitting packets to link level address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ kdb_printf("Transmitting packets to link level address: %02x:%02x:%02x:%02x:%02x:%02x\n",
destination_mac.ether_addr_octet[0] & 0xff,
destination_mac.ether_addr_octet[1] & 0xff,
destination_mac.ether_addr_octet[2] & 0xff,
destination_mac.ether_addr_octet[4] & 0xff,
destination_mac.ether_addr_octet[5] & 0xff);
- printf("Kernel map size is %llu\n", (unsigned long long) get_vmmap_size(kernel_map));
- printf("Sending write request for %s\n", corename);
+ kdb_printf("Kernel map size is %llu\n", (unsigned long long) get_vmmap_size(kernel_map));
+ kdb_printf("Sending write request for %s\n", corename_str);
- if ((panic_error = kdp_send_crashdump_pkt(KDP_WRQ, corename, 0 , NULL)) < 0) {
- printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
+ if ((panic_error = kdp_send_crashdump_pkt(KDP_WRQ, corename_str, 0 , NULL)) < 0) {
+ kdb_printf ("kdp_send_crashdump_pkt failed with error %d\n", panic_error);
goto panic_dump_exit;
}
/* Just the panic log requested */
if ((panicstr != (char *) 0) && (kdp_flag & PANIC_LOG_DUMP)) {
- printf("Transmitting panic log, please wait: ");
- kdp_send_crashdump_data(KDP_DATA, corename, (debug_buf_ptr - debug_buf), debug_buf);
+ kdb_printf_unbuffered("Transmitting panic log, please wait: ");
+ kdp_send_crashdump_data(KDP_DATA, corename_str,
+ debug_buf_ptr - debug_buf,
+ debug_buf);
kdp_send_crashdump_pkt (KDP_EOF, NULL, 0, ((void *) 0));
printf("Please file a bug report on this panic, if possible.\n");
goto panic_dump_exit;
}
+ /* maybe we wanted the systemlog */
+ if (kdp_flag & SYSTEM_LOG_DUMP) {
+ long start_off = msgbufp->msg_bufx;
+ long len;
+
+ kdb_printf_unbuffered("Transmitting system log, please wait: ");
+ if (start_off >= msgbufp->msg_bufr) {
+ len = msgbufp->msg_size - start_off;
+ kdp_send_crashdump_data(KDP_DATA, corename_str, len,
+ msgbufp->msg_bufc + start_off);
+ /* seek to remove trailing bytes */
+ kdp_send_crashdump_seek(corename_str, len);
+ start_off = 0;
+ }
+
+ if (start_off != msgbufp->msg_bufr) {
+ len = msgbufp->msg_bufr - start_off;
+ kdp_send_crashdump_data(KDP_DATA, corename_str, len,
+ msgbufp->msg_bufc + start_off);
+ }
+
+ kdp_send_crashdump_pkt (KDP_EOF, NULL, 0, ((void *) 0));
+ goto panic_dump_exit;
+ }
+
/* We want a core dump if we're here */
kern_dump();
+
panic_dump_exit:
abort_panic_transfer();
- pkt.input = FALSE;
- pkt.len = 0;
kdp_reset();
return;
}
abort_panic_transfer(void)
{
flag_panic_dump_in_progress = FALSE;
+ flag_dont_abort_panic_dump = FALSE;
not_in_kdp = 1;
panic_block = 0;
}
+
+#if CONFIG_SERIAL_KDP
+
+static boolean_t needs_serial_init = TRUE;
+
+static void
+kdp_serial_send(void *rpkt, unsigned int rpkt_len)
+{
+ // printf("tx\n");
+ kdp_serialize_packet((unsigned char *)rpkt, rpkt_len, pal_serial_putc);
+}
+
+static void
+kdp_serial_receive(void *rpkt, unsigned int *rpkt_len, unsigned int timeout)
+{
+ int readkar;
+ uint64_t now, deadline;
+
+ clock_interval_to_deadline(timeout, 1000 * 1000 /* milliseconds */, &deadline);
+
+// printf("rx\n");
+ for(clock_get_uptime(&now); now < deadline; clock_get_uptime(&now))
+ {
+ readkar = pal_serial_getc();
+ if(readkar >= 0)
+ {
+ unsigned char *packet;
+ // printf("got char %02x\n", readkar);
+ if((packet = kdp_unserialize_packet(readkar,rpkt_len)))
+ {
+ memcpy(rpkt, packet, *rpkt_len);
+ return;
+ }
+ }
+ }
+ *rpkt_len = 0;
+}
+
+static boolean_t
+kdp_serial_setmode(boolean_t active)
+{
+ if (active == FALSE) /* leaving KDP */
+ return TRUE;
+
+ if (!needs_serial_init)
+ return TRUE;
+
+ pal_serial_init();
+ needs_serial_init = FALSE;
+ return TRUE;
+}
+
+
+static void kdp_serial_callout(__unused void *arg, kdp_event_t event)
+{
+ /* When we stop KDP, set the bit to re-initialize the console serial port
+ * the next time we send/receive a KDP packet. We don't do it on
+ * KDP_EVENT_ENTER directly because it also gets called when we trap to KDP
+ * for non-external debugging, i.e., stackshot or core dumps.
+ *
+ * Set needs_serial_init on exit (and initialization, see above) and not
+ * enter because enter is sent multiple times and causes excess reinitialization.
+ */
+
+ switch (event)
+ {
+ case KDP_EVENT_PANICLOG:
+ case KDP_EVENT_ENTER:
+ break;
+ case KDP_EVENT_EXIT:
+ needs_serial_init = TRUE;
+ break;
+ }
+}
+
+#endif /* CONFIG_SERIAL_KDP */
+
+void
+kdp_init(void)
+{
+ strlcpy(kdp_kernelversion_string, version, sizeof(kdp_kernelversion_string));
+
+ /* Relies on platform layer calling panic_init() before kdp_init() */
+ if (kernel_uuid[0] != '\0') {
+ /*
+ * Update kdp_kernelversion_string with our UUID
+ * generated at link time.
+ */
+
+ strlcat(kdp_kernelversion_string, "; UUID=", sizeof(kdp_kernelversion_string));
+ strlcat(kdp_kernelversion_string, kernel_uuid, sizeof(kdp_kernelversion_string));
+ }
+
+ if (debug_boot_arg & DB_REBOOT_POST_CORE)
+ kdp_flag |= REBOOT_POST_CORE;
+#if defined(__x86_64__)
+ kdp_machine_init();
+#endif
+#if CONFIG_SERIAL_KDP
+ char kdpname[80];
+ struct in_addr ipaddr;
+ struct ether_addr macaddr;
+
+
+#if CONFIG_EMBEDDED
+ //serial will be the debugger, unless match name is explicitly provided, and it's not "serial"
+ if(PE_parse_boot_argn("kdp_match_name", kdpname, sizeof(kdpname)) && strncmp(kdpname, "serial", sizeof(kdpname)) != 0)
+ return;
+#else
+ // serial must be explicitly requested
+ if(!PE_parse_boot_argn("kdp_match_name", kdpname, sizeof(kdpname)) || strncmp(kdpname, "serial", sizeof(kdpname)) != 0)
+ return;
+#endif
+
+ kprintf("Initializing serial KDP\n");
+
+ kdp_register_callout(kdp_serial_callout, NULL);
+ kdp_register_link(NULL, kdp_serial_setmode);
+ kdp_register_send_receive(kdp_serial_send, kdp_serial_receive);
+
+ /* fake up an ip and mac for early serial debugging */
+ macaddr.ether_addr_octet[0] = 's';
+ macaddr.ether_addr_octet[1] = 'e';
+ macaddr.ether_addr_octet[2] = 'r';
+ macaddr.ether_addr_octet[3] = 'i';
+ macaddr.ether_addr_octet[4] = 'a';
+ macaddr.ether_addr_octet[5] = 'l';
+ ipaddr.s_addr = KDP_SERIAL_IPADDR;
+ kdp_set_ip_and_mac_addresses(&ipaddr, &macaddr);
+
+#endif /* CONFIG_SERIAL_KDP */
+}
projects / apple / xnu.git / blobdiff