#include <mach/mach_types.h>
#include <sys/appleapiopts.h>
#include <kern/debug.h>
+#include <uuid/uuid.h>
#include <kdp/kdp_internal.h>
#include <kdp/kdp_private.h>
+#include <kdp/kdp_core.h>
+#include <kdp/kdp_dyld.h>
#include <libsa/types.h>
/*17 */ kdp_breakpoint64_remove,
/*18 */ kdp_kernelversion,
/*19 */ kdp_readphysmem64,
-/*20 */ kdp_writephysmem64,
-/*21 */ kdp_readioport,
-/*22 */ kdp_writeioport,
-/*23 */ kdp_readmsr64,
-/*24 */ kdp_writemsr64,
+/*1A */ kdp_writephysmem64,
+/*1B */ kdp_readioport,
+/*1C */ kdp_writeioport,
+/*1D */ kdp_readmsr64,
+/*1E */ kdp_writemsr64,
+/*1F */ kdp_dumpinfo,
};
kdp_glob_t kdp;
* Version 11 of the KDP Protocol adds support for 64-bit wide memory
* addresses (read/write and breakpoints) as well as a dedicated
* kernelversion request. Version 12 adds read/writing of physical
- * memory with 64-bit wide memory addresses.
+ * memory with 64-bit wide memory addresses.
*/
#define KDP_VERSION 12
extern unsigned int return_on_panic;
typedef struct thread_snapshot *thread_snapshot_t;
+typedef struct task_snapshot *task_snapshot_t;
extern int
machine_trace_thread(thread_t thread, char *tracepos, char *tracebound, int nframes, boolean_t user_p);
int
-kdp_stackshot(int pid, void *tracebuf, uint32_t tracebuf_size, unsigned trace_options, uint32_t *pbytesTraced);
+kdp_stackshot(int pid, void *tracebuf, uint32_t tracebuf_size, uint32_t trace_flags, uint32_t dispatch_offset, uint32_t *pbytesTraced);
boolean_t kdp_copyin(pmap_t, uint64_t, void *, size_t);
extern void bcopy_phys(addr64_t, addr64_t, vm_size_t);
kdp_connect_req_t *rq = &pkt->connect_req;
size_t plen = *len;
kdp_connect_reply_t *rp = &pkt->connect_reply;
+ uint16_t rport, eport;
+ uint32_t key;
+ uint8_t seq;
if (plen < sizeof (*rq))
return (FALSE);
dprintf(("kdp_connect seq %x greeting %s\n", rq->hdr.seq, rq->greeting));
+ rport = rq->req_reply_port;
+ eport = rq->exc_note_port;
+ key = rq->hdr.key;
+ seq = rq->hdr.seq;
if (kdp.is_conn) {
- if (rq->hdr.seq == kdp.conn_seq) /* duplicate request */
+ if ((seq == kdp.conn_seq) && /* duplicate request */
+ (rport == kdp.reply_port) &&
+ (eport == kdp.exception_port) &&
+ (key == kdp.session_key))
rp->error = KDPERR_NO_ERROR;
- else
+ else
rp->error = KDPERR_ALREADY_CONNECTED;
}
else {
- kdp.reply_port = rq->req_reply_port;
- kdp.exception_port = rq->exc_note_port;
- kdp.is_conn = TRUE;
- kdp.conn_seq = rq->hdr.seq;
-
+ kdp.reply_port = rport;
+ kdp.exception_port = eport;
+ kdp.is_conn = TRUE;
+ kdp.conn_seq = seq;
+ kdp.session_key = key;
+
rp->error = KDPERR_NO_ERROR;
}
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
- *reply_port = kdp.reply_port;
+ *reply_port = rport;
*len = rp->hdr.len;
if (current_debugger == KDP_CUR_DB)
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;
if ((panicstr != NULL) && (return_on_panic == 0))
reattach_wait = 1;
}
int
-kdp_stackshot(int pid, void *tracebuf, uint32_t tracebuf_size, unsigned trace_options, uint32_t *pbytesTraced)
+kdp_stackshot(int pid, void *tracebuf, uint32_t tracebuf_size, uint32_t trace_flags, uint32_t dispatch_offset, uint32_t *pbytesTraced)
{
char *tracepos = (char *) tracebuf;
char *tracebound = tracepos + tracebuf_size;
task_t task = TASK_NULL;
thread_t thread = THREAD_NULL;
- int nframes = trace_options;
thread_snapshot_t tsnap = NULL;
unsigned framesize = 2 * sizeof(vm_offset_t);
- boolean_t dispatch_p = ((trace_options & STACKSHOT_GET_DQ) != 0);
- uint16_t dispatch_offset = (trace_options & STACKSHOT_DISPATCH_OFFSET_MASK) >> STACKSHOT_DISPATCH_OFFSET_SHIFT;
struct task ctask;
struct thread cthread;
-
- if ((nframes <= 0) || nframes > MAX_FRAMES)
- nframes = MAX_FRAMES;
+
+ boolean_t dispatch_p = ((trace_flags & STACKSHOT_GET_DQ) != 0);
+ boolean_t save_loadinfo_p = ((trace_flags & STACKSHOT_SAVE_LOADINFO) != 0);
queue_iterate(&tasks, task, task_t, tasks) {
+ int task_pid = pid_from_task(task);
+ boolean_t task64 = task_has_64BitAddr(task);
+
if ((task == NULL) || (ml_nofault_copy((vm_offset_t) task, (vm_offset_t) &ctask, sizeof(struct task)) != sizeof(struct task)))
goto error_exit;
+
/* Trace everything, unless a process was specified */
- if ((pid == -1) || (pid == pid_from_task(task)))
+ if ((pid == -1) || (pid == task_pid)) {
+ task_snapshot_t task_snap;
+ uint32_t uuid_info_count;
+ mach_vm_address_t uuid_info_addr;
+
+ if (save_loadinfo_p && task_pid > 0) {
+ // Read the dyld_all_image_infos struct from the task memory to get UUID array count and location
+ if (task64) {
+ struct dyld_all_image_infos64 task_image_infos;
+ if (!kdp_copyin(task->map->pmap, task->all_image_info_addr, &task_image_infos, sizeof(struct dyld_all_image_infos64)))
+ goto error_exit;
+ uuid_info_count = (uint32_t)task_image_infos.uuidArrayCount;
+ uuid_info_addr = task_image_infos.uuidArray;
+ } else {
+ struct dyld_all_image_infos task_image_infos;
+ if (!kdp_copyin(task->map->pmap, task->all_image_info_addr, &task_image_infos, sizeof(struct dyld_all_image_infos)))
+ goto error_exit;
+ uuid_info_count = task_image_infos.uuidArrayCount;
+ uuid_info_addr = task_image_infos.uuidArray;
+ }
+ } else {
+ uuid_info_count = 0;
+ uuid_info_addr = 0;
+ }
+
+ if (tracepos + sizeof(struct task_snapshot) > tracebound) {
+ error = -1;
+ goto error_exit;
+ }
+
+ task_snap = (task_snapshot_t) tracepos;
+ task_snap->snapshot_magic = STACKSHOT_TASK_SNAPSHOT_MAGIC;
+ task_snap->pid = task_pid;
+ task_snap->nloadinfos = uuid_info_count;
+ /* Add the BSD process identifiers */
+ if (task_pid != -1)
+ proc_name_kdp(task, task_snap->p_comm, sizeof(task_snap->p_comm));
+ else
+ task_snap->p_comm[0] = '\0';
+ task_snap->ss_flags = 0;
+ if (task64)
+ task_snap->ss_flags |= kUser64_p;
+
+ tracepos += sizeof(struct task_snapshot);
+
+ if (task_pid > 0 && uuid_info_count > 0) {
+ uint32_t uuid_info_size = (uint32_t)(task64 ? sizeof(struct dyld_uuid_info64) : sizeof(struct dyld_uuid_info));
+ uint32_t uuid_info_array_size = uuid_info_count * uuid_info_size;
+
+ if (tracepos + uuid_info_array_size > tracebound) {
+ error = -1;
+ goto error_exit;
+ }
+
+ // Copy in the UUID info array
+ if (!kdp_copyin(task->map->pmap, uuid_info_addr, tracepos, uuid_info_array_size))
+ goto error_exit;
+
+ tracepos += uuid_info_array_size;
+ }
+
queue_iterate(&task->threads, thread, thread_t, task_threads){
if ((thread == NULL) || (ml_nofault_copy((vm_offset_t) thread, (vm_offset_t) &cthread, sizeof(struct thread)) != sizeof(struct thread)))
goto error_exit;
+
if (((tracepos + 4 * sizeof(struct thread_snapshot)) > tracebound)) {
error = -1;
goto error_exit;
}
-/* Populate the thread snapshot header */
+ /* Populate the thread snapshot header */
tsnap = (thread_snapshot_t) tracepos;
tsnap->thread_id = (uint64_t) (uintptr_t)thread;
tsnap->state = thread->state;
tsnap->wait_event = thread->wait_event;
tsnap->continuation = (uint64_t) (uintptr_t) thread->continuation;
-/* Add the BSD process identifiers */
- if ((tsnap->pid = pid_from_task(task)) != -1)
- proc_name_kdp(task, tsnap->p_comm, sizeof(tsnap->p_comm));
- else
- tsnap->p_comm[0] = '\0';
- tsnap->snapshot_magic = 0xfeedface;
+ tsnap->snapshot_magic = STACKSHOT_THREAD_SNAPSHOT_MAGIC;
tracepos += sizeof(struct thread_snapshot);
tsnap->ss_flags = 0;
if (dispatch_p && (task != kernel_task) && (task->active) && (task->map)) {
uint64_t dqkeyaddr = thread_dispatchqaddr(thread);
if (dqkeyaddr != 0) {
- boolean_t task64 = task_has_64BitAddr(task);
uint64_t dqaddr = 0;
if (kdp_copyin(task->map->pmap, dqkeyaddr, &dqaddr, (task64 ? 8 : 4)) && (dqaddr != 0)) {
uint64_t dqserialnumaddr = dqaddr + dispatch_offset;
*/
if (thread->kernel_stack != 0) {
#if defined(__LP64__)
- tracebytes = machine_trace_thread64(thread, tracepos, tracebound, nframes, FALSE);
+ tracebytes = machine_trace_thread64(thread, tracepos, tracebound, MAX_FRAMES, FALSE);
tsnap->ss_flags |= kKernel64_p;
framesize = 16;
#else
- tracebytes = machine_trace_thread(thread, tracepos, tracebound, nframes, FALSE);
+ tracebytes = machine_trace_thread(thread, tracepos, tracebound, MAX_FRAMES, FALSE);
framesize = 8;
#endif
}
tsnap->nkern_frames = tracebytes/framesize;
tracepos += tracebytes;
tracebytes = 0;
-/* Trace user stack, if any */
+ /* Trace user stack, if any */
if (thread->task->map != kernel_map) {
/* 64-bit task? */
if (task_has_64BitAddr(thread->task)) {
- tracebytes = machine_trace_thread64(thread, tracepos, tracebound, nframes, TRUE);
+ tracebytes = machine_trace_thread64(thread, tracepos, tracebound, MAX_FRAMES, TRUE);
tsnap->ss_flags |= kUser64_p;
framesize = 16;
}
else {
- tracebytes = machine_trace_thread(thread, tracepos, tracebound, nframes, TRUE);
+ tracebytes = machine_trace_thread(thread, tracepos, tracebound, MAX_FRAMES, TRUE);
framesize = 8;
}
}
tracepos += tracebytes;
tracebytes = 0;
}
+ }
}
error_exit:
return (TRUE);
}
+
+static boolean_t
+kdp_dumpinfo(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+ )
+{
+ kdp_dumpinfo_req_t *rq = &pkt->dumpinfo_req;
+ kdp_dumpinfo_reply_t *rp = &pkt->dumpinfo_reply;
+ size_t plen = *len;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ dprintf(("kdp_dumpinfo file=%s destip=%s routerip=%s\n", rq->name, rq->destip, rq->routerip));
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ if ((rq->type & KDP_DUMPINFO_MASK) != KDP_DUMPINFO_GETINFO) {
+ kdp_set_dump_info(rq->type, rq->name, rq->destip, rq->routerip,
+ rq->port);
+ }
+
+ /* gather some stats for reply */
+ kdp_get_dump_info(&rp->type, rp->name, rp->destip, rp->routerip,
+ &rp->port);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
projects / apple / xnu.git / blobdiff