/*
- * Copyright (c) 2000-2007 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <kdp/kdp_internal.h>
#include <kdp/kdp_private.h>
#include <kdp/kdp_core.h>
-#include <kdp/kdp_dyld.h>
#include <libsa/types.h>
#include <libkern/version.h>
#include <vm/vm_map.h>
#include <vm/vm_kern.h>
#include <vm/vm_pageout.h>
-
-extern int count_busy_buffers(void); /* must track with declaration in bsd/sys/buf_internal.h */
+#include <vm/vm_shared_region.h>
+#include <libkern/OSKextLibPrivate.h>
#define DO_ALIGN 1 /* align all packet data accesses */
int noresume_on_disconnect = 0;
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);
-extern int
-machine_trace_thread64(thread_t thread, char *tracepos, char *tracebound, int nframes, boolean_t user_p);
-extern int
-proc_pid(void *p);
-extern void
-proc_name_kdp(task_t task, char *buf, int size);
-
-extern void
-kdp_snapshot_postflight(void);
-
-static int
-pid_from_task(task_t task);
-
kdp_error_t
kdp_set_breakpoint_internal(
mach_vm_address_t address
mach_vm_address_t address
);
-
-int
-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);
-
boolean_t
kdp_packet(
unsigned char *pkt,
size_t plen = *len;
kdp_req_t req;
boolean_t ret;
-
+
#if DO_ALIGN
- bcopy((char *)pkt, (char *)rd, sizeof(aligned_pkt));
+ if (plen > sizeof(aligned_pkt)) {
+ printf("kdp_packet bad len %lu\n", plen);
+ return FALSE;
+ }
+ bcopy((char *)pkt, (char *)rd, plen);
#else
rd = (kdp_pkt_t *)pkt;
#endif
rp->error = KDPERR_ALREADY_CONNECTED;
}
else {
- kdp.reply_port = rport;
- kdp.exception_port = eport;
- kdp.is_conn = TRUE;
- kdp.conn_seq = 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;
kdp.session_key = 0;
if ((panicstr != NULL) && (return_on_panic == 0))
- reattach_wait = 1;
+ reattach_wait = 1;
if (noresume_on_disconnect == 1) {
reattach_wait = 1;
unsigned short *reply_port
)
{
- kdp_reattach_req_t *rq = &pkt->reattach_req;
+ kdp_reattach_req_t *rq = &pkt->reattach_req;
- kdp.is_conn = TRUE;
- kdp_disconnect(pkt, len, reply_port);
- *reply_port = rq->req_reply_port;
- reattach_wait = 1;
- return (TRUE);
+ kdp.is_conn = TRUE;
+ kdp_disconnect(pkt, len, reply_port);
+ *reply_port = rq->req_reply_port;
+ reattach_wait = 1;
+ return (TRUE);
}
static boolean_t
if (plen < sizeof (*rq))
return (FALSE);
- dprintf(("kdp_hostinfo\n"));
+ dprintf(("kdp_hostinfo\n"));
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
static boolean_t
kdp_kernelversion(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_kernelversion_req_t *rq = &pkt->kernelversion_req;
rp->hdr.len = sizeof (*rp);
dprintf(("kdp_kernelversion\n"));
- slen = strlcpy(rp->version, kdp_kernelversion_string, MAX_KDP_DATA_SIZE);
+ slen = strlcpy(rp->version, kdp_kernelversion_string, MAX_KDP_DATA_SIZE);
- rp->hdr.len += slen + 1; /* strlcpy returns the amount copied with NUL */
+ rp->hdr.len += slen + 1; /* strlcpy returns the amount copied with NUL */
*reply_port = kdp.reply_port;
*len = rp->hdr.len;
kdp_writemem_req_t *rq = &pkt->writemem_req;
size_t plen = *len;
kdp_writemem_reply_t *rp = &pkt->writemem_reply;
- mach_vm_size_t cnt;
+ mach_vm_size_t cnt;
if (plen < sizeof (*rq))
return (FALSE);
rp->error = KDPERR_BAD_NBYTES;
else {
dprintf(("kdp_writemem addr %x size %d\n", rq->address, rq->nbytes));
-
cnt = kdp_machine_vm_write((caddr_t)rq->data, (mach_vm_address_t)rq->address, rq->nbytes);
- rp->error = KDPERR_NO_ERROR;
+ rp->error = KDPERR_ACCESS(rq->nbytes, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
}
rp->hdr.is_reply = 1;
static boolean_t
kdp_writemem64(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_writemem64_req_t *rq = &pkt->writemem64_req;
return (FALSE);
if (rq->nbytes > MAX_KDP_DATA_SIZE)
- rp->error = KDPERR_BAD_NBYTES;
+ rp->error = KDPERR_BAD_NBYTES;
else {
- dprintf(("kdp_writemem64 addr %llx size %d\n", rq->address, rq->nbytes));
-
- cnt = kdp_machine_vm_write((caddr_t)rq->data, (mach_vm_address_t)rq->address, (mach_vm_size_t)rq->nbytes);
- rp->error = KDPERR_NO_ERROR;
+ dprintf(("kdp_writemem64 addr %llx size %d\n", rq->address, rq->nbytes));
+ cnt = kdp_machine_vm_write((caddr_t)rq->data, (mach_vm_address_t)rq->address, (mach_vm_size_t)rq->nbytes);
+ rp->error = KDPERR_ACCESS(rq->nbytes, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
}
rp->hdr.is_reply = 1;
static boolean_t
kdp_writephysmem64(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_writephysmem64_req_t *rq = &pkt->writephysmem64_req;
size_t plen = *len;
kdp_writephysmem64_reply_t *rp = &pkt->writephysmem64_reply;
+ mach_vm_size_t cnt;
+ unsigned int size;
if (plen < sizeof (*rq))
- return (FALSE);
+ return (FALSE);
- if (rq->nbytes > MAX_KDP_DATA_SIZE)
- rp->error = KDPERR_BAD_NBYTES;
+ size = rq->nbytes;
+ if (size > MAX_KDP_DATA_SIZE)
+ rp->error = KDPERR_BAD_NBYTES;
else {
- dprintf(("kdp_writephysmem64 addr %llx size %d\n", rq->address, rq->nbytes));
- kdp_machine_phys_write(rq, rq->data, rq->lcpu);
- rp->error = KDPERR_NO_ERROR;
+ dprintf(("kdp_writephysmem64 addr %llx size %d\n", rq->address, size));
+ cnt = kdp_machine_phys_write(rq, rq->data, rq->lcpu);
+ rp->error = KDPERR_ACCESS(size, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
}
rp->hdr.is_reply = 1;
kdp_readmem_req_t *rq = &pkt->readmem_req;
size_t plen = *len;
kdp_readmem_reply_t *rp = &pkt->readmem_reply;
- mach_vm_size_t cnt;
-#if __i386__
- void *pversion = &kdp_kernelversion_string;
-#endif
+ mach_vm_size_t cnt;
+ unsigned int size;
if (plen < sizeof (*rq))
return (FALSE);
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
- if (rq->nbytes > MAX_KDP_DATA_SIZE)
+ size = rq->nbytes;
+ if (size > MAX_KDP_DATA_SIZE)
rp->error = KDPERR_BAD_NBYTES;
else {
- unsigned int n = rq->nbytes;
-
- dprintf(("kdp_readmem addr %x size %d\n", rq->address, n));
-#if __i386__
- /* XXX This is a hack to facilitate the "showversion" macro
- * on i386, which is used to obtain the kernel version without
- * symbols - a pointer to the version string should eventually
- * be pinned at a fixed address when an equivalent of the
- * VECTORS segment (loaded at a fixed load address, and contains
- * a table) is implemented on these architectures, as with PPC.
- * N.B.: x86 now has a low global page, and the version indirection
- * is pinned at 0x201C. We retain the 0x501C address override
- * for compatibility. Future architectures should instead use
- * the KDP_KERNELVERSION request.
- */
- if (rq->address == 0x501C)
- rq->address = (uintptr_t)&pversion;
-#endif
- cnt = kdp_machine_vm_read((mach_vm_address_t)rq->address, (caddr_t)rp->data, n);
- rp->error = KDPERR_NO_ERROR;
+ dprintf(("kdp_readmem addr %x size %d\n", rq->address, size));
+ cnt = kdp_machine_vm_read((mach_vm_address_t)rq->address, (caddr_t)rp->data, rq->nbytes);
+ rp->error = KDPERR_ACCESS(size, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
rp->hdr.len += cnt;
}
static boolean_t
kdp_readmem64(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_readmem64_req_t *rq = &pkt->readmem64_req;
size_t plen = *len;
kdp_readmem64_reply_t *rp = &pkt->readmem64_reply;
- mach_vm_size_t cnt;
+ mach_vm_size_t cnt;
+ unsigned int size;
if (plen < sizeof (*rq))
return (FALSE);
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
- if (rq->nbytes > MAX_KDP_DATA_SIZE)
- rp->error = KDPERR_BAD_NBYTES;
+ size = rq->nbytes;
+ if (size > MAX_KDP_DATA_SIZE)
+ rp->error = KDPERR_BAD_NBYTES;
else {
-
- dprintf(("kdp_readmem64 addr %llx size %d\n", rq->address, rq->nbytes));
-
- cnt = kdp_machine_vm_read((mach_vm_address_t)rq->address, (caddr_t)rp->data, rq->nbytes);
- rp->error = KDPERR_NO_ERROR;
+ dprintf(("kdp_readmem64 addr %llx size %d\n", rq->address, size));
+ cnt = kdp_machine_vm_read((mach_vm_address_t)rq->address, (caddr_t)rp->data, rq->nbytes);
+ rp->error = KDPERR_ACCESS(size, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
- rp->hdr.len += cnt;
+ rp->hdr.len += cnt;
}
*reply_port = kdp.reply_port;
static boolean_t
kdp_readphysmem64(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_readphysmem64_req_t *rq = &pkt->readphysmem64_req;
size_t plen = *len;
kdp_readphysmem64_reply_t *rp = &pkt->readphysmem64_reply;
- int cnt;
+ mach_vm_size_t cnt;
+ unsigned int size;
if (plen < sizeof (*rq))
- return (FALSE);
+ return (FALSE);
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
- if (rq->nbytes > MAX_KDP_DATA_SIZE)
- rp->error = KDPERR_BAD_NBYTES;
+ size = rq->nbytes;
+ if (size > MAX_KDP_DATA_SIZE)
+ rp->error = KDPERR_BAD_NBYTES;
else {
-
- dprintf(("kdp_readphysmem64 addr %llx size %d\n", rq->address, rq->nbytes));
-
- cnt = (int)kdp_machine_phys_read(rq, rp->data, rq->lcpu);
- rp->error = KDPERR_NO_ERROR;
+ dprintf(("kdp_readphysmem64 addr %llx size %d\n", rq->address, size));
+ cnt = kdp_machine_phys_read(rq, rp->data, rq->lcpu);
+ rp->error = KDPERR_ACCESS(size, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
- rp->hdr.len += cnt;
+ rp->hdr.len += cnt;
}
*reply_port = kdp.reply_port;
boolean_t
kdp_breakpoint_set(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_breakpoint_req_t *rq = &pkt->breakpoint_req;
boolean_t
kdp_breakpoint64_set(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_breakpoint64_req_t *rq = &pkt->breakpoint64_req;
boolean_t
kdp_breakpoint_remove(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_breakpoint_req_t *rq = &pkt->breakpoint_req;
boolean_t
kdp_breakpoint64_remove(
- kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
)
{
kdp_breakpoint64_req_t *rq = &pkt->breakpoint64_req;
kdp_error_t
kdp_set_breakpoint_internal(
- mach_vm_address_t address
- )
+ mach_vm_address_t address
+)
{
uint8_t breakinstr[MAX_BREAKINSN_BYTES], oldinstr[MAX_BREAKINSN_BYTES];
kdp_error_t
kdp_remove_breakpoint_internal(
- mach_vm_address_t address
- )
+ mach_vm_address_t address
+)
{
mach_vm_size_t cnt;
int i;
for(i=0;(i < MAX_BREAKPOINTS) && (breakpoint_list[i].address != address); i++);
if (i == MAX_BREAKPOINTS)
- {
+ {
return KDPERR_BREAKPOINT_NOT_FOUND;
}
boolean_t breakpoint_found = FALSE;
if (breakpoints_initialized)
- {
+ {
for(i=0;i < MAX_BREAKPOINTS; i++)
{
if (breakpoint_list[i].address)
if (breakpoint_found)
printf("kdp_remove_all_breakpoints: found extant breakpoints, removing them.\n");
- }
+ }
return breakpoint_found;
}
boolean_t
kdp_reboot(
- __unused kdp_pkt_t *pkt,
- __unused int *len,
- __unused unsigned short *reply_port
+ __unused kdp_pkt_t *pkt,
+ __unused int *len,
+ __unused unsigned short *reply_port
)
{
dprintf(("kdp_reboot\n"));
return (TRUE); // no, not really, we won't return
}
-#define MAX_FRAMES 1000
-
-static int pid_from_task(task_t task)
-{
- int pid = -1;
-
- if (task->bsd_info)
- pid = proc_pid(task->bsd_info);
-
- return pid;
-}
-
-boolean_t
-kdp_copyin(pmap_t p, uint64_t uaddr, void *dest, size_t size) {
- size_t rem = size;
- char *kvaddr = dest;
-
- while (rem) {
- ppnum_t upn = pmap_find_phys(p, uaddr);
- uint64_t phys_src = ptoa_64(upn) | (uaddr & PAGE_MASK);
- uint64_t phys_dest = kvtophys((vm_offset_t)kvaddr);
- uint64_t src_rem = PAGE_SIZE - (phys_src & PAGE_MASK);
- uint64_t dst_rem = PAGE_SIZE - (phys_dest & PAGE_MASK);
- size_t cur_size = (uint32_t) MIN(src_rem, dst_rem);
- cur_size = MIN(cur_size, rem);
-
- if (upn && pmap_valid_page(upn) && phys_dest) {
- bcopy_phys(phys_src, phys_dest, cur_size);
- }
- else
- break;
- uaddr += cur_size;
- kvaddr += cur_size;
- rem -= cur_size;
- }
- return (rem == 0);
-}
-
-
-static void
-kdp_mem_and_io_snapshot(struct mem_and_io_snapshot *memio_snap)
-{
- unsigned int pages_reclaimed;
- unsigned int pages_wanted;
- kern_return_t kErr;
-
- memio_snap->snapshot_magic = STACKSHOT_MEM_AND_IO_SNAPSHOT_MAGIC;
- memio_snap->free_pages = vm_page_free_count;
- memio_snap->active_pages = vm_page_active_count;
- memio_snap->inactive_pages = vm_page_inactive_count;
- memio_snap->purgeable_pages = vm_page_purgeable_count;
- memio_snap->wired_pages = vm_page_wire_count;
- memio_snap->speculative_pages = vm_page_speculative_count;
- memio_snap->throttled_pages = vm_page_throttled_count;
- memio_snap->busy_buffer_count = count_busy_buffers();
- kErr = mach_vm_pressure_monitor(FALSE, VM_PRESSURE_TIME_WINDOW, &pages_reclaimed, &pages_wanted);
- if ( ! kErr ) {
- memio_snap->pages_wanted = (uint32_t)pages_wanted;
- memio_snap->pages_reclaimed = (uint32_t)pages_reclaimed;
- memio_snap->pages_wanted_reclaimed_valid = 1;
- } else {
- memio_snap->pages_wanted = 0;
- memio_snap->pages_reclaimed = 0;
- memio_snap->pages_wanted_reclaimed_valid = 0;
- }
-}
-
-
-
-/*
- * Method for grabbing timer values safely, in the sense that no infinite loop will occur
- * Certain flavors of the timer_grab function, which would seem to be the thing to use,
- * can loop infinitely if called while the timer is in the process of being updated.
- * Unfortunately, it is (rarely) possible to get inconsistent top and bottom halves of
- * the timer using this method. This seems insoluble, since stackshot runs in a context
- * where the timer might be half-updated, and has no way of yielding control just long
- * enough to finish the update.
- */
-
-static uint64_t safe_grab_timer_value(struct timer *t)
-{
-#if defined(__LP64__)
- return t->all_bits;
-#else
- uint64_t time = t->high_bits; /* endian independent grab */
- time = (time << 32) | t->low_bits;
- return time;
-#endif
-}
-
-int
-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;
- uint32_t tracebytes = 0;
- int error = 0;
-
- task_t task = TASK_NULL;
- thread_t thread = THREAD_NULL;
- thread_snapshot_t tsnap = NULL;
- unsigned framesize = 2 * sizeof(vm_offset_t);
- struct task ctask;
- struct thread cthread;
- struct _vm_map cmap;
- struct pmap cpmap;
-
- queue_head_t *task_list = &tasks;
- boolean_t is_active_list = TRUE;
-
- boolean_t dispatch_p = ((trace_flags & STACKSHOT_GET_DQ) != 0);
- boolean_t save_loadinfo_p = ((trace_flags & STACKSHOT_SAVE_LOADINFO) != 0);
-
- if(trace_flags & STACKSHOT_GET_GLOBAL_MEM_STATS) {
- if(tracepos + sizeof(struct mem_and_io_snapshot) > tracebound) {
- error = -1;
- goto error_exit;
- }
- kdp_mem_and_io_snapshot((struct mem_and_io_snapshot *)tracepos);
- tracepos += sizeof(struct mem_and_io_snapshot);
- }
-
-walk_list:
- queue_iterate(task_list, task, task_t, tasks) {
- if ((task == NULL) || (ml_nofault_copy((vm_offset_t) task, (vm_offset_t) &ctask, sizeof(struct task)) != sizeof(struct task)))
- goto error_exit;
-
- int task_pid = pid_from_task(task);
- boolean_t task64 = task_has_64BitAddr(task);
-
- if (!task->active) {
- /*
- * Not interested in terminated tasks without threads, and
- * at the moment, stackshot can't handle a task without a name.
- */
- if (queue_empty(&task->threads) || task_pid == -1) {
- continue;
- }
- }
-
- /* Trace everything, unless a process was specified */
- if ((pid == -1) || (pid == task_pid)) {
- task_snapshot_t task_snap;
- uint32_t uuid_info_count = 0;
- mach_vm_address_t uuid_info_addr = 0;
- boolean_t have_map = (task->map != NULL) &&
- (ml_nofault_copy((vm_offset_t)(task->map), (vm_offset_t)&cmap, sizeof(struct _vm_map)) == sizeof(struct _vm_map));
- boolean_t have_pmap = have_map && (cmap.pmap != NULL) &&
- (ml_nofault_copy((vm_offset_t)(cmap.pmap), (vm_offset_t)&cpmap, sizeof(struct pmap)) == sizeof(struct pmap));
-
- if (have_pmap && task->active && 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 user64_dyld_all_image_infos task_image_infos;
- if (kdp_copyin(task->map->pmap, task->all_image_info_addr, &task_image_infos, sizeof(struct user64_dyld_all_image_infos))) {
- uuid_info_count = (uint32_t)task_image_infos.uuidArrayCount;
- uuid_info_addr = task_image_infos.uuidArray;
- }
- } else {
- struct user32_dyld_all_image_infos task_image_infos;
- if (kdp_copyin(task->map->pmap, task->all_image_info_addr, &task_image_infos, sizeof(struct user32_dyld_all_image_infos))) {
- uuid_info_count = task_image_infos.uuidArrayCount;
- uuid_info_addr = task_image_infos.uuidArray;
- }
- }
-
- // If we get a NULL uuid_info_addr (which can happen when we catch dyld in the middle of updating
- // this data structure), we zero the uuid_info_count so that we won't even try to save load info
- // for this task.
- if (!uuid_info_addr) {
- uuid_info_count = 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;
- if (!task->active)
- task_snap->ss_flags |= kTerminatedSnapshot;
- if(task->pidsuspended) task_snap->ss_flags |= kPidSuspended;
- if(task->frozen) task_snap->ss_flags |= kFrozen;
-
- task_snap->suspend_count = task->suspend_count;
- task_snap->task_size = have_pmap ? pmap_resident_count(task->map->pmap) : 0;
- task_snap->faults = task->faults;
- task_snap->pageins = task->pageins;
- task_snap->cow_faults = task->cow_faults;
-
- task_snap->user_time_in_terminated_threads = task->total_user_time;
- task_snap->system_time_in_terminated_threads = task->total_system_time;
- tracepos += sizeof(struct task_snapshot);
-
- if (task_pid > 0 && uuid_info_count > 0) {
- uint32_t uuid_info_size = (uint32_t)(task64 ? sizeof(struct user64_dyld_uuid_info) : sizeof(struct user32_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
- // It may be nonresident, in which case just fix up nloadinfos to 0 in the task_snap
- if (have_pmap && !kdp_copyin(task->map->pmap, uuid_info_addr, tracepos, uuid_info_array_size))
- task_snap->nloadinfos = 0;
- else
- tracepos += uuid_info_array_size;
- }
-
- queue_iterate(&task->threads, thread, thread_t, task_threads){
- uint64_t tval;
-
- 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 */
- tsnap = (thread_snapshot_t) tracepos;
- tsnap->thread_id = thread_tid(thread);
- tsnap->state = thread->state;
- tsnap->sched_pri = thread->sched_pri;
- tsnap->sched_flags = thread->sched_flags;
- tsnap->wait_event = VM_KERNEL_UNSLIDE(thread->wait_event);
- tsnap->continuation = VM_KERNEL_UNSLIDE(thread->continuation);
- tval = safe_grab_timer_value(&thread->user_timer);
- tsnap->user_time = tval;
- tval = safe_grab_timer_value(&thread->system_timer);
- if (thread->precise_user_kernel_time) {
- tsnap->system_time = tval;
- } else {
- tsnap->user_time += tval;
- tsnap->system_time = 0;
- }
- tsnap->snapshot_magic = STACKSHOT_THREAD_SNAPSHOT_MAGIC;
- tracepos += sizeof(struct thread_snapshot);
- tsnap->ss_flags = 0;
-
- if (dispatch_p && (task != kernel_task) && (task->active) && have_pmap) {
- uint64_t dqkeyaddr = thread_dispatchqaddr(thread);
- if (dqkeyaddr != 0) {
- uint64_t dqaddr = 0;
- if (kdp_copyin(task->map->pmap, dqkeyaddr, &dqaddr, (task64 ? 8 : 4)) && (dqaddr != 0)) {
- uint64_t dqserialnumaddr = dqaddr + dispatch_offset;
- uint64_t dqserialnum = 0;
- if (kdp_copyin(task->map->pmap, dqserialnumaddr, &dqserialnum, (task64 ? 8 : 4))) {
- tsnap->ss_flags |= kHasDispatchSerial;
- *(uint64_t *)tracepos = dqserialnum;
- tracepos += 8;
- }
- }
- }
- }
-/* Call through to the machine specific trace routines
- * Frames are added past the snapshot header.
- */
- tracebytes = 0;
- if (thread->kernel_stack != 0) {
-#if defined(__LP64__)
- 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, MAX_FRAMES, FALSE);
- framesize = 8;
-#endif
- }
- tsnap->nkern_frames = tracebytes/framesize;
- tracepos += tracebytes;
- tracebytes = 0;
- /* Trace user stack, if any */
- if (task->active && thread->task->map != kernel_map) {
- /* 64-bit task? */
- if (task_has_64BitAddr(thread->task)) {
- 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, MAX_FRAMES, TRUE);
- framesize = 8;
- }
- }
- tsnap->nuser_frames = tracebytes/framesize;
- tracepos += tracebytes;
- tracebytes = 0;
- }
- }
- }
-
- if (is_active_list) {
- is_active_list = FALSE;
- task_list = &terminated_tasks;
- goto walk_list;
- }
-
-error_exit:
- /* Release stack snapshot wait indicator */
- kdp_snapshot_postflight();
-
- *pbytesTraced = (uint32_t)(tracepos - (char *) tracebuf);
-
- return error;
-}
-
static boolean_t
-kdp_readioport(kdp_pkt_t *pkt,
+kdp_readioport(
+ kdp_pkt_t *pkt,
int *len,
unsigned short *reply_port
)
}
static boolean_t
-kdp_readmsr64(kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
- )
+kdp_readmsr64(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+)
{
kdp_readmsr64_req_t *rq = &pkt->readmsr64_req;
kdp_readmsr64_reply_t *rp = &pkt->readmsr64_reply;
return (TRUE);
}
+
projects / apple / xnu.git / blobdiff