/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <mach/mach_types.h>
+#include <mach/vm_param.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 <libsa/types.h>
+#include <libkern/version.h>
+
+#include <string.h> /* bcopy */
-int kdp_vm_read( caddr_t, caddr_t, unsigned int);
-int kdp_vm_write( caddr_t, caddr_t, unsigned int);
+#include <kern/processor.h>
+#include <kern/thread.h>
+#include <kern/clock.h>
+#include <vm/vm_map.h>
+#include <vm/vm_kern.h>
+#include <vm/vm_pageout.h>
+#include <vm/vm_shared_region.h>
+#include <libkern/OSKextLibPrivate.h>
#define DO_ALIGN 1 /* align all packet data accesses */
#endif
static kdp_dispatch_t
- dispatch_table[KDP_REATTACH - KDP_CONNECT +1] =
+ dispatch_table[KDP_INVALID_REQUEST-KDP_CONNECT] =
{
/* 0 */ kdp_connect,
/* 1 */ kdp_disconnect,
/* F */ kdp_breakpoint_set,
/*10 */ kdp_breakpoint_remove,
/*11 */ kdp_regions,
-/*12 */ kdp_reattach
+/*12 */ kdp_reattach,
+/*13 */ kdp_reboot,
+/*14 */ kdp_readmem64,
+/*15 */ kdp_writemem64,
+/*16 */ kdp_breakpoint64_set,
+/*17 */ kdp_breakpoint64_remove,
+/*18 */ kdp_kernelversion,
+/*19 */ kdp_readphysmem64,
+/*1A */ kdp_writephysmem64,
+/*1B */ kdp_readioport,
+/*1C */ kdp_writeioport,
+/*1D */ kdp_readmsr64,
+/*1E */ kdp_writemsr64,
+/*1F */ kdp_dumpinfo,
};
kdp_glob_t kdp;
-
#define MAX_BREAKPOINTS 100
-#define KDP_MAX_BREAKPOINTS 100
-#define BREAKPOINT_NOT_FOUND 101
-#define BREAKPOINT_ALREADY_SET 102
-
-#define KDP_VERSION 10
+/*
+ * 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.
+ */
+#define KDP_VERSION 12
typedef struct{
- unsigned int address;
- unsigned int old_instruction;
+ mach_vm_address_t address;
+ uint32_t bytesused;
+ uint8_t oldbytes[MAX_BREAKINSN_BYTES];
} kdp_breakpoint_record_t;
static kdp_breakpoint_record_t breakpoint_list[MAX_BREAKPOINTS];
static unsigned int breakpoints_initialized = 0;
+
int reattach_wait = 0;
+int noresume_on_disconnect = 0;
+extern unsigned int return_on_panic;
+
+kdp_error_t
+kdp_set_breakpoint_internal(
+ mach_vm_address_t address
+ );
+
+kdp_error_t
+kdp_remove_breakpoint_internal(
+ mach_vm_address_t address
+ );
boolean_t
kdp_packet(
{
static unsigned aligned_pkt[1538/sizeof(unsigned)+1]; // max ether pkt
kdp_pkt_t *rd = (kdp_pkt_t *)&aligned_pkt;
- int plen = *len;
- unsigned int req;
+ 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
if (plen < sizeof (rd->hdr) || rd->hdr.len != plen) {
- printf("kdp_packet bad len pkt %d hdr %d\n", plen, rd->hdr.len);
+ printf("kdp_packet bad len pkt %lu hdr %d\n", plen, rd->hdr.len);
return (FALSE);
}
}
req = rd->hdr.request;
- if ((req < KDP_CONNECT) || (req > KDP_REATTACH)) {
+ if (req >= KDP_INVALID_REQUEST) {
printf("kdp_packet bad request %x len %d seq %x key %x\n",
rd->hdr.request, rd->hdr.len, rd->hdr.seq, rd->hdr.key);
static boolean_t
kdp_unknown(
kdp_pkt_t *pkt,
- int *len,
- unsigned short *reply_port
+ __unused int *len,
+ __unused unsigned short *reply_port
)
{
kdp_pkt_t *rd = (kdp_pkt_t *)pkt;
)
{
kdp_connect_req_t *rq = &pkt->connect_req;
- int plen = *len;
+ 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_disconnect_req_t *rq = &pkt->disconnect_req;
- int plen = *len;
+ size_t plen = *len;
kdp_disconnect_reply_t *rp = &pkt->disconnect_reply;
if (plen < sizeof (*rq))
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;
+
+ if (noresume_on_disconnect == 1) {
+ reattach_wait = 1;
+ noresume_on_disconnect = 0;
+ }
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
unsigned short *reply_port
)
{
- kdp_reattach_req_t *rq = &pkt->reattach_req;
- kdp_disconnect_reply_t *rp = &pkt->disconnect_reply;
+ 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
)
{
kdp_hostinfo_req_t *rq = &pkt->hostinfo_req;
- int plen = *len;
+ size_t plen = *len;
kdp_hostinfo_reply_t *rp = &pkt->hostinfo_reply;
if (plen < sizeof (*rq))
return (FALSE);
+ dprintf(("kdp_hostinfo\n"));
+
rp->hdr.is_reply = 1;
rp->hdr.len = sizeof (*rp);
return (TRUE);
}
+static boolean_t
+kdp_kernelversion(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+)
+{
+ kdp_kernelversion_req_t *rq = &pkt->kernelversion_req;
+ size_t plen = *len;
+ kdp_kernelversion_reply_t *rp = &pkt->kernelversion_reply;
+ size_t slen;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ dprintf(("kdp_kernelversion\n"));
+ slen = strlcpy(rp->version, kdp_kernelversion_string, MAX_KDP_DATA_SIZE);
+
+ rp->hdr.len += slen + 1; /* strlcpy returns the amount copied with NUL */
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
static boolean_t
kdp_suspend(
kdp_pkt_t *pkt,
)
{
kdp_suspend_req_t *rq = &pkt->suspend_req;
- int plen = *len;
+ size_t plen = *len;
kdp_suspend_reply_t *rp = &pkt->suspend_reply;
if (plen < sizeof (*rq))
)
{
kdp_resumecpus_req_t *rq = &pkt->resumecpus_req;
- int plen = *len;
+ size_t plen = *len;
kdp_resumecpus_reply_t *rp = &pkt->resumecpus_reply;
if (plen < sizeof (*rq))
)
{
kdp_writemem_req_t *rq = &pkt->writemem_req;
- int plen = *len;
+ size_t plen = *len;
kdp_writemem_reply_t *rp = &pkt->writemem_reply;
- int 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_vm_write((caddr_t)rq->data, (caddr_t)rq->address, rq->nbytes);
- rp->error = KDPERR_NO_ERROR;
+ cnt = kdp_machine_vm_write((caddr_t)rq->data, (mach_vm_address_t)rq->address, rq->nbytes);
+ rp->error = KDPERR_ACCESS(rq->nbytes, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
}
rp->hdr.is_reply = 1;
return (TRUE);
}
+static boolean_t
+kdp_writemem64(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+)
+{
+ kdp_writemem64_req_t *rq = &pkt->writemem64_req;
+ size_t plen = *len;
+ kdp_writemem64_reply_t *rp = &pkt->writemem64_reply;
+ mach_vm_size_t cnt;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ if (rq->nbytes > MAX_KDP_DATA_SIZE)
+ 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_ACCESS(rq->nbytes, cnt);
+ dprintf((" cnt %lld error %d\n", cnt, rp->error));
+ }
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
+static boolean_t
+kdp_writephysmem64(
+ 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);
+
+ 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, 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;
+ rp->hdr.len = sizeof (*rp);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
static boolean_t
kdp_readmem(
kdp_pkt_t *pkt,
)
{
kdp_readmem_req_t *rq = &pkt->readmem_req;
- int plen = *len;
+ size_t plen = *len;
kdp_readmem_reply_t *rp = &pkt->readmem_reply;
- int 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)
+ 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, 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));
- dprintf(("kdp_readmem addr %x size %d\n", rq->address, rq->nbytes));
+ rp->hdr.len += cnt;
+ }
- cnt = kdp_vm_read((caddr_t)rq->address, (caddr_t)rp->data, rq->nbytes);
- rp->error = KDPERR_NO_ERROR;
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+static boolean_t
+kdp_readmem64(
+ 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;
+ unsigned int size;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ 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, 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;
}
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
+static boolean_t
+kdp_readphysmem64(
+ 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;
+ mach_vm_size_t cnt;
+ unsigned int size;
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ 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, 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;
+ }
+
*reply_port = kdp.reply_port;
*len = rp->hdr.len;
)
{
kdp_maxbytes_req_t *rq = &pkt->maxbytes_req;
- int plen = *len;
+ size_t plen = *len;
kdp_maxbytes_reply_t *rp = &pkt->maxbytes_reply;
if (plen < sizeof (*rq))
)
{
kdp_version_req_t *rq = &pkt->version_req;
- int plen = *len;
+ size_t plen = *len;
kdp_version_reply_t *rp = &pkt->version_reply;
- kdp_region_t *r;
if (plen < sizeof (*rq))
return (FALSE);
dprintf(("kdp_version\n"));
rp->version = KDP_VERSION;
-#ifdef __ppc__
if (!(kdp_flag & KDP_BP_DIS))
rp->feature = KDP_FEATURE_BP;
else
rp->feature = 0;
-#else
- rp->feature = 0;
-#endif
-
+
*reply_port = kdp.reply_port;
*len = rp->hdr.len;
)
{
kdp_regions_req_t *rq = &pkt->regions_req;
- int plen = *len;
+ size_t plen = *len;
kdp_regions_reply_t *rp = &pkt->regions_reply;
kdp_region_t *r;
r = rp->regions;
rp->nregions = 0;
- (vm_offset_t)r->address = 0;
+ r->address = 0;
r->nbytes = 0xffffffff;
r->protection = VM_PROT_ALL; r++; rp->nregions++;
)
{
kdp_writeregs_req_t *rq = &pkt->writeregs_req;
- int plen = *len;
+ size_t plen = *len;
int size;
kdp_writeregs_reply_t *rp = &pkt->writeregs_reply;
if (plen < sizeof (*rq))
return (FALSE);
- size = rq->hdr.len - sizeof(kdp_hdr_t) - sizeof(unsigned int);
+ size = rq->hdr.len - (unsigned)sizeof(kdp_hdr_t) - (unsigned)sizeof(unsigned int);
rp->error = kdp_machine_write_regs(rq->cpu, rq->flavor, rq->data, &size);
rp->hdr.is_reply = 1;
)
{
kdp_readregs_req_t *rq = &pkt->readregs_req;
- int plen = *len;
+ size_t plen = *len;
kdp_readregs_reply_t *rp = &pkt->readregs_reply;
int size;
return (TRUE);
}
-static boolean_t
+
+boolean_t
kdp_breakpoint_set(
kdp_pkt_t *pkt,
int *len,
unsigned short *reply_port
)
{
- kdp_breakpoint_req_t *rq = &pkt->breakpoint_req;
- kdp_breakpoint_reply_t *rp = &pkt->breakpoint_reply;
- int plen = *len;
- int cnt, i;
- unsigned int old_instruction = 0;
- unsigned int breakinstr = kdp_ml_get_breakinsn();
+ kdp_breakpoint_req_t *rq = &pkt->breakpoint_req;
+ kdp_breakpoint_reply_t *rp = &pkt->breakpoint_reply;
+ size_t plen = *len;
+ kdp_error_t kerr;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ dprintf(("kdp_breakpoint_set %x\n", rq->address));
- if(breakpoints_initialized == 0)
- {
- for(i=0;(i < MAX_BREAKPOINTS); breakpoint_list[i].address=0, i++);
- breakpoints_initialized++;
- }
- if (plen < sizeof (*rq))
- return (FALSE);
- cnt = kdp_vm_read((caddr_t)rq->address, (caddr_t)(&old_instruction), sizeof(int));
+ kerr = kdp_set_breakpoint_internal((mach_vm_address_t)rq->address);
+
+ rp->error = kerr;
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
- if (old_instruction==breakinstr)
- {
- printf("A trap was already set at that address, not setting new breakpoint\n");
- rp->error = BREAKPOINT_ALREADY_SET;
-
- rp->hdr.is_reply = 1;
- rp->hdr.len = sizeof (*rp);
- *reply_port = kdp.reply_port;
- *len = rp->hdr.len;
-
- return (TRUE);
- }
+boolean_t
+kdp_breakpoint64_set(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+)
+{
+ kdp_breakpoint64_req_t *rq = &pkt->breakpoint64_req;
+ kdp_breakpoint64_reply_t *rp = &pkt->breakpoint64_reply;
+ size_t plen = *len;
+ kdp_error_t kerr;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ dprintf(("kdp_breakpoint64_set %llx\n", rq->address));
- for(i=0;(i < MAX_BREAKPOINTS) && (breakpoint_list[i].address != 0); i++);
+ kerr = kdp_set_breakpoint_internal((mach_vm_address_t)rq->address);
+
+ rp->error = kerr;
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
- if (i == MAX_BREAKPOINTS)
+boolean_t
+kdp_breakpoint_remove(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+)
+{
+ kdp_breakpoint_req_t *rq = &pkt->breakpoint_req;
+ kdp_breakpoint_reply_t *rp = &pkt->breakpoint_reply;
+ size_t plen = *len;
+ kdp_error_t kerr;
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ dprintf(("kdp_breakpoint_remove %x\n", rq->address));
+
+ kerr = kdp_remove_breakpoint_internal((mach_vm_address_t)rq->address);
+
+ rp->error = kerr;
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
+boolean_t
+kdp_breakpoint64_remove(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+)
+{
+ kdp_breakpoint64_req_t *rq = &pkt->breakpoint64_req;
+ kdp_breakpoint64_reply_t *rp = &pkt->breakpoint64_reply;
+ size_t plen = *len;
+ kdp_error_t kerr;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ dprintf(("kdp_breakpoint64_remove %llx\n", rq->address));
+
+ kerr = kdp_remove_breakpoint_internal((mach_vm_address_t)rq->address);
+
+ rp->error = kerr;
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
+
+kdp_error_t
+kdp_set_breakpoint_internal(
+ mach_vm_address_t address
+)
+{
+
+ uint8_t breakinstr[MAX_BREAKINSN_BYTES], oldinstr[MAX_BREAKINSN_BYTES];
+ uint32_t breakinstrsize = sizeof(breakinstr);
+ mach_vm_size_t cnt;
+ int i;
+
+ kdp_machine_get_breakinsn(breakinstr, &breakinstrsize);
+
+ if(breakpoints_initialized == 0)
{
- rp->error = KDP_MAX_BREAKPOINTS;
-
- rp->hdr.is_reply = 1;
- rp->hdr.len = sizeof (*rp);
- *reply_port = kdp.reply_port;
- *len = rp->hdr.len;
-
- return (TRUE);
+ for(i=0;(i < MAX_BREAKPOINTS); breakpoint_list[i].address=0, i++);
+ breakpoints_initialized++;
}
- breakpoint_list[i].address = rq->address;
- breakpoint_list[i].old_instruction = old_instruction;
+
+ cnt = kdp_machine_vm_read(address, (caddr_t)&oldinstr, (mach_vm_size_t)breakinstrsize);
+
+ if (0 == memcmp(oldinstr, breakinstr, breakinstrsize)) {
+ printf("A trap was already set at that address, not setting new breakpoint\n");
+
+ return KDPERR_BREAKPOINT_ALREADY_SET;
+ }
+
+ for(i=0;(i < MAX_BREAKPOINTS) && (breakpoint_list[i].address != 0); i++);
+
+ if (i == MAX_BREAKPOINTS) {
+ return KDPERR_MAX_BREAKPOINTS;
+ }
+
+ breakpoint_list[i].address = address;
+ memcpy(breakpoint_list[i].oldbytes, oldinstr, breakinstrsize);
+ breakpoint_list[i].bytesused = breakinstrsize;
+
+ cnt = kdp_machine_vm_write((caddr_t)&breakinstr, address, breakinstrsize);
+
+ return KDPERR_NO_ERROR;
+}
+
+kdp_error_t
+kdp_remove_breakpoint_internal(
+ 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;
+ }
+
+ breakpoint_list[i].address = 0;
+ cnt = kdp_machine_vm_write((caddr_t)&breakpoint_list[i].oldbytes, address, breakpoint_list[i].bytesused);
+
+ return KDPERR_NO_ERROR;
+}
- cnt = kdp_vm_write((caddr_t)&breakinstr, (caddr_t)rq->address, sizeof(&breakinstr));
+boolean_t
+kdp_remove_all_breakpoints(void)
+{
+ int i;
+ boolean_t breakpoint_found = FALSE;
+
+ if (breakpoints_initialized)
+ {
+ for(i=0;i < MAX_BREAKPOINTS; i++)
+ {
+ if (breakpoint_list[i].address)
+ {
+ kdp_machine_vm_write((caddr_t)&(breakpoint_list[i].oldbytes), (mach_vm_address_t)breakpoint_list[i].address, (mach_vm_size_t)breakpoint_list[i].bytesused);
+ breakpoint_found = TRUE;
+ breakpoint_list[i].address = 0;
+ }
+ }
+
+ if (breakpoint_found)
+ printf("kdp_remove_all_breakpoints: found extant breakpoints, removing them.\n");
+ }
+ return breakpoint_found;
+}
- rp->error = KDPERR_NO_ERROR;
- rp->hdr.is_reply = 1;
- rp->hdr.len = sizeof (*rp);
- *reply_port = kdp.reply_port;
- *len = rp->hdr.len;
+boolean_t
+kdp_reboot(
+ __unused kdp_pkt_t *pkt,
+ __unused int *len,
+ __unused unsigned short *reply_port
+)
+{
+ dprintf(("kdp_reboot\n"));
- return (TRUE);
+ kdp_machine_reboot();
+
+ return (TRUE); // no, not really, we won't return
}
static boolean_t
-kdp_breakpoint_remove(
+kdp_readioport(
kdp_pkt_t *pkt,
int *len,
unsigned short *reply_port
-)
+ )
{
- kdp_breakpoint_req_t *rq = &pkt->breakpoint_req;
- kdp_breakpoint_reply_t *rp = &pkt->breakpoint_reply;
- int plen = *len;
- int cnt,i;
+ kdp_readioport_req_t *rq = &pkt->readioport_req;
+ kdp_readioport_reply_t *rp = &pkt->readioport_reply;
+ size_t plen = *len;
- if (plen < sizeof (*rq))
- return (FALSE);
+ 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;
+ else {
+#if KDP_TEST_HARNESS
+ uint16_t addr = rq->address;
+#endif
+ uint16_t size = rq->nbytes;
+ dprintf(("kdp_readioport addr %x size %d\n", addr, size));
- for(i=0;(i < MAX_BREAKPOINTS) && (breakpoint_list[i].address != rq->address); i++);
- if (i == MAX_BREAKPOINTS)
- {
- rp->error = BREAKPOINT_NOT_FOUND;
- rp->hdr.is_reply = 1;
- rp->hdr.len = sizeof (*rp);
- *reply_port = kdp.reply_port;
- *len = rp->hdr.len;
+ rp->error = kdp_machine_ioport_read(rq, rp->data, rq->lcpu);
+ if (rp->error == KDPERR_NO_ERROR)
+ rp->hdr.len += size;
+ }
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
- return (TRUE); /* Check if it needs to be FALSE in case of error */
- }
+static boolean_t
+kdp_writeioport(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+ )
+{
+ kdp_writeioport_req_t *rq = &pkt->writeioport_req;
+ kdp_writeioport_reply_t *rp = &pkt->writeioport_reply;
+ size_t plen = *len;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ if (rq->nbytes > MAX_KDP_DATA_SIZE)
+ rp->error = KDPERR_BAD_NBYTES;
+ else {
+ dprintf(("kdp_writeioport addr %x size %d\n", rq->address,
+ rq->nbytes));
+
+ rp->error = kdp_machine_ioport_write(rq, rq->data, rq->lcpu);
+ }
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
- breakpoint_list[i].address = 0;
- cnt = kdp_vm_write((caddr_t)&(breakpoint_list[i].old_instruction), (caddr_t)rq->address, sizeof(int));
- rp->error = KDPERR_NO_ERROR;
- rp->hdr.is_reply = 1;
- rp->hdr.len = sizeof (*rp);
- *reply_port = kdp.reply_port;
- *len = rp->hdr.len;
+static boolean_t
+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;
+ size_t plen = *len;
- return (TRUE);
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ dprintf(("kdp_readmsr64 lcpu %x addr %x\n", rq->lcpu, rq->address));
+ rp->error = kdp_machine_msr64_read(rq, rp->data, rq->lcpu);
+ if (rp->error == KDPERR_NO_ERROR)
+ rp->hdr.len += sizeof(uint64_t);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
}
-boolean_t
-kdp_remove_all_breakpoints()
+static boolean_t
+kdp_writemsr64(
+ kdp_pkt_t *pkt,
+ int *len,
+ unsigned short *reply_port
+ )
{
- int i;
- boolean_t breakpoint_found = FALSE;
-
- if (breakpoints_initialized)
- {
- for(i=0;i < MAX_BREAKPOINTS; i++)
- {
- if (breakpoint_list[i].address)
- {
- kdp_vm_write((caddr_t)&(breakpoint_list[i].old_instruction), (caddr_t)breakpoint_list[i].address, sizeof(int));
- breakpoint_found = TRUE;
- breakpoint_list[i].address = 0;
- }
- }
- if (breakpoint_found)
- printf("kdp_remove_all_breakpoints: found extant breakpoints, removing them.\n");
- }
- return breakpoint_found;
+ kdp_writemsr64_req_t *rq = &pkt->writemsr64_req;
+ kdp_writemsr64_reply_t *rp = &pkt->writemsr64_reply;
+ size_t plen = *len;
+
+ if (plen < sizeof (*rq))
+ return (FALSE);
+
+ dprintf(("kdp_writemsr64 lcpu %x addr %x\n", rq->lcpu, rq->address));
+ rp->error = kdp_machine_msr64_write(rq, rq->data, rq->lcpu);
+
+ rp->hdr.is_reply = 1;
+ rp->hdr.len = sizeof (*rp);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ 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);
+
+ *reply_port = kdp.reply_port;
+ *len = rp->hdr.len;
+
+ return (TRUE);
+}
+
projects / apple / xnu.git / blobdiff