#include <ppc/machparam.h>
#include <ppc/mem.h>
#include <ppc/pmap.h>
-#include <ppc/pmap_internals.h>
#include <ppc/mappings.h>
+#include <mach/thread_status.h>
+#include <mach-o/loader.h>
+#include <mach/vm_region.h>
+#include <mach/vm_statistics.h>
+
+#include <vm/vm_kern.h>
+#include <kdp/kdp_core.h>
+#include <kdp/kdp_udp.h>
+#include <kdp/kdp_internal.h>
+
+
pmap_t kdp_pmap=0;
boolean_t kdp_trans_off=0;
+boolean_t kdp_read_io =0;
-unsigned kdp_xlate_off(void);
-void kdp_xlate_restore(unsigned);
-void kdp_flush_cache(vm_offset_t, unsigned);
-vm_offset_t kdp_vtophys(pmap_t pmap, vm_offset_t vaddr);
-void kdp_bcopy( unsigned char *, unsigned char *, unsigned);
-void kdp_pmemcpy( vm_offset_t , vm_offset_t, unsigned);
unsigned kdp_vm_read( caddr_t, caddr_t, unsigned);
unsigned kdp_vm_write( caddr_t, caddr_t, unsigned);
-extern vm_offset_t kvtophys(vm_offset_t);
-extern vm_offset_t mem_actual;
-/*
- *
- */
-vm_offset_t kdp_vtophys(
- pmap_t pmap,
- vm_offset_t va)
-{
- register mapping *mp;
- register vm_offset_t pa;
-
- pa = (vm_offset_t)LRA(pmap->space,(void *)va);
+typedef struct {
+ int flavor; /* the number for this flavor */
+ int count; /* count of ints in this flavor */
+} mythread_state_flavor_t;
- if (pa != 0)
- return(pa);
+/* These will need to be uncommented and completed
+ *if we support other architectures
+ */
- mp = hw_lock_phys_vir(pmap->space, va);
- if((unsigned int)mp&1) {
- return 0;
- }
+/*
+#if defined (__ppc__)
+*/
+static mythread_state_flavor_t thread_flavor_array[] = {
+ {PPC_THREAD_STATE , PPC_THREAD_STATE_COUNT},
+};
+/*
+#elif defined (__i386__)
+mythread_state_flavor_t thread_flavor_array [] = {
+ {i386_THREAD_STATE, i386_THREAD_STATE_COUNT},
+};
+#else
+#error architecture not supported
+#endif
+*/
+static int kdp_mynum_flavors = 1;
+static int MAX_TSTATE_FLAVORS = 1;
- if(!mp) { /* If it was not a normal page */
- pa = hw_cvp_blk(pmap, va); /* Try to convert odd-sized page (returns 0 if not found) */
- return pa; /* Return physical address */
- }
+typedef struct {
+ vm_offset_t header;
+ int hoffset;
+ mythread_state_flavor_t *flavors;
+ int tstate_size;
+} tir_t;
- mp = hw_cpv(mp);
+unsigned int not_in_kdp = 1; /* Cleared when we begin to access vm functions in kdp */
- if(!mp->physent) {
- pa = (vm_offset_t)((mp->PTEr & -PAGE_SIZE) | ((unsigned int)va & (PAGE_SIZE-1)));
- } else {
- pa = (vm_offset_t)((mp->physent->pte1 & -PAGE_SIZE) | ((unsigned int)va & (PAGE_SIZE-1)));
- hw_unlock_bit((unsigned int *)&mp->physent->phys_link, PHYS_LOCK);
- }
+char command_buffer[512];
- return(pa);
-}
+static struct vm_object test_object;
/*
*
*/
-void kdp_bcopy(
- unsigned char *src,
- unsigned char *dst,
- unsigned cnt)
+addr64_t kdp_vtophys(
+ pmap_t pmap,
+ addr64_t va)
{
- while (cnt--)
- *dst++ = *src++;
+ addr64_t pa;
+ ppnum_t pp;
+
+ pp = pmap_find_phys(pmap, va); /* Get the page number */
+ if(!pp) return 0; /* Just return if no translation */
+
+ pa = ((addr64_t)pp << 12) | (va & 0x0000000000000FFFULL); /* Shove in the page offset */
+ return(pa);
}
/*
- *
+ * Note that kdp_vm_read() does not translate the destination address.Therefore
+ * there's an implicit assumption that the destination will be a statically
+ * allocated structure, since those map to the same phys. and virt. addresses
*/
unsigned kdp_vm_read(
caddr_t src,
caddr_t dst,
unsigned len)
{
- vm_offset_t cur_virt_src, cur_virt_dst;
- vm_offset_t cur_phys_src;
+ addr64_t cur_virt_src, cur_virt_dst;
+ addr64_t cur_phys_src;
unsigned resid, cnt;
- unsigned msr;
+ unsigned int dummy;
+ pmap_t pmap;
#ifdef KDP_VM_READ_DEBUG
kprintf("kdp_vm_read1: src %x dst %x len %x - %08X %08X\n", src, dst, len, ((unsigned long *)src)[0], ((unsigned long *)src)[1]);
#endif
+
+ cur_virt_src = (addr64_t)((unsigned int)src);
+ cur_virt_dst = (addr64_t)((unsigned int)dst);
+
if (kdp_trans_off) {
- cur_virt_src = (vm_offset_t)src;
- if((vm_offset_t)src >= mem_actual) return 0; /* Can't read where there's not any memory */
- cur_virt_dst = (vm_offset_t)dst;
- resid = (mem_actual - (vm_offset_t)src) > len ? len : (mem_actual - (vm_offset_t)src);
+
+
+ resid = len; /* Get the length to copy */
while (resid != 0) {
- cur_phys_src = cur_virt_src;
- cnt = ((cur_virt_src + NBPG) & (-NBPG)) - cur_virt_src;
+
+ if(kdp_read_io == 0)
+ if(!mapping_phys_lookup((ppnum_t)(cur_virt_src >> 12), &dummy)) return 0; /* Can't read where there's not any memory */
+
+ cnt = 4096 - (cur_virt_src & 0xFFF); /* Get length left on page */
+
if (cnt > resid) cnt = resid;
- msr = kdp_xlate_off();
- kdp_bcopy((unsigned char *)cur_phys_src,
- (unsigned char *)cur_virt_dst, cnt);
- kdp_xlate_restore(msr);
- cur_virt_src +=cnt;
- cur_virt_dst +=cnt;
+
+ bcopy_phys(cur_virt_src, cur_virt_dst, cnt); /* Copy stuff over */
+
+ cur_virt_src += cnt;
+ cur_virt_dst += cnt;
resid -= cnt;
}
+
} else {
- cur_virt_src = (vm_offset_t)src;
- cur_virt_dst = (vm_offset_t)dst;
+
resid = len;
+ if(kdp_pmap) pmap = kdp_pmap; /* If special pmap, use it */
+ else pmap = kernel_pmap; /* otherwise, use kernel's */
+
while (resid != 0) {
- if (kdp_pmap) {
- if ((cur_phys_src =
- kdp_vtophys(kdp_pmap,trunc_page(cur_virt_src))) == 0)
- goto exit;
- cur_phys_src += (cur_virt_src & PAGE_MASK);
- } else {
- if ((cur_phys_src = kdp_vtophys(kernel_pmap,cur_virt_src)) == 0)
- goto exit;
- }
-
- cnt = ((cur_virt_src + NBPG) & (-NBPG)) - cur_virt_src;
+
+ if((cur_phys_src = kdp_vtophys(pmap, cur_virt_src)) == 0) goto exit;
+ if(kdp_read_io == 0)
+ if(!mapping_phys_lookup((ppnum_t)(cur_phys_src >> 12), &dummy)) goto exit; /* Can't read where there's not any memory */
+
+ cnt = 4096 - (cur_virt_src & 0xFFF); /* Get length left on page */
if (cnt > resid) cnt = resid;
- if (kdp_pmap) {
+
#ifdef KDP_VM_READ_DEBUG
- kprintf("kdp_vm_read2: pmap %x, virt %x, phys %x\n",
- kdp_pmap, cur_virt_src, cur_phys_src);
+ kprintf("kdp_vm_read2: pmap %08X, virt %016LLX, phys %016LLX\n",
+ pmap, cur_virt_src, cur_phys_src);
#endif
- msr = kdp_xlate_off();
- kdp_bcopy((unsigned char *)cur_phys_src,
- (unsigned char *)cur_virt_dst, cnt);
- kdp_xlate_restore(msr);
- } else {
- kdp_bcopy((unsigned char *)cur_virt_src,
- (unsigned char *)cur_virt_dst, cnt);
- }
+
+ bcopy_phys(cur_phys_src, cur_virt_dst, cnt); /* Copy stuff over */
+
cur_virt_src +=cnt;
cur_virt_dst +=cnt;
resid -= cnt;
#ifdef KDP_VM_READ_DEBUG
kprintf("kdp_vm_read: ret %08X\n", len-resid);
#endif
- return (len-resid);
+ return (len - resid);
}
/*
caddr_t dst,
unsigned len)
{
- vm_offset_t cur_virt_src, cur_virt_dst;
- vm_offset_t cur_phys_src, cur_phys_dst;
- unsigned resid, cnt, cnt_src, cnt_dst;
- unsigned msr;
+ addr64_t cur_virt_src, cur_virt_dst;
+ addr64_t cur_phys_src, cur_phys_dst;
+ unsigned resid, cnt, cnt_src, cnt_dst;
#ifdef KDP_VM_WRITE_DEBUG
printf("kdp_vm_write: src %x dst %x len %x - %08X %08X\n", src, dst, len, ((unsigned long *)src)[0], ((unsigned long *)src)[1]);
#endif
- cur_virt_src = (vm_offset_t)src;
- cur_virt_dst = (vm_offset_t)dst;
+ cur_virt_src = (addr64_t)((unsigned int)src);
+ cur_virt_dst = (addr64_t)((unsigned int)dst);
+
resid = len;
while (resid != 0) {
if (cnt > resid)
cnt = resid;
- msr = kdp_xlate_off();
- kdp_bcopy((unsigned char *)cur_virt_src, (unsigned char *)cur_phys_dst, cnt);
- kdp_flush_cache(cur_phys_dst, cnt);
- kdp_xlate_restore(msr);
+ bcopy_phys(cur_phys_src, cur_phys_dst, cnt); /* Copy stuff over */
+ sync_cache64(cur_phys_dst, cnt); /* Sync caches */
cur_virt_src +=cnt;
cur_virt_dst +=cnt;
resid -= cnt;
}
exit:
- return (len-resid);
+ return (len - resid);
+}
+
+
+static void
+kern_collectth_state(thread_act_t th_act, tir_t *t)
+{
+ vm_offset_t header;
+ int hoffset, i ;
+ mythread_state_flavor_t *flavors;
+ struct thread_command *tc;
+ /*
+ * Fill in thread command structure.
+ */
+ header = t->header;
+ hoffset = t->hoffset;
+ flavors = t->flavors;
+
+ tc = (struct thread_command *) (header + hoffset);
+ tc->cmd = LC_THREAD;
+ tc->cmdsize = sizeof(struct thread_command)
+ + t->tstate_size;
+ hoffset += sizeof(struct thread_command);
+ /*
+ * Follow with a struct thread_state_flavor and
+ * the appropriate thread state struct for each
+ * thread state flavor.
+ */
+ for (i = 0; i < kdp_mynum_flavors; i++) {
+ *(mythread_state_flavor_t *)(header+hoffset) =
+ flavors[i];
+ hoffset += sizeof(mythread_state_flavor_t);
+
+ if (machine_thread_get_kern_state(th_act, flavors[i].flavor,
+ (thread_state_t) (header+hoffset),
+ &flavors[i].count) != KERN_SUCCESS)
+ printf ("Failure in machine_thread_get_kern_state()\n");
+ hoffset += flavors[i].count*sizeof(int);
+ }
+
+ t->hoffset = hoffset;
}
+int
+kdp_dump_trap(
+ int type,
+ struct savearea *regs)
+{
+ extern int kdp_flag;
+
+ printf ("An unexpected trap (type %d) occurred during the kernel dump, terminating.\n", type);
+ kdp_send_panic_pkt (KDP_EOF, NULL, 0, ((void *) 0));
+ abort_panic_transfer();
+ kdp_flag &= ~KDP_PANIC_DUMP_ENABLED;
+ kdp_flag &= ~PANIC_CORE_ON_NMI;
+ kdp_flag &= ~PANIC_LOG_DUMP;
+
+ kdp_reset();
+
+ kdp_raise_exception(EXC_BAD_ACCESS, 0, 0, kdp.saved_state);
+ return;
+}
+
+int
+kern_dump()
+{
+ int error = 0;
+ vm_map_t map;
+ unsigned int thread_count, segment_count;
+ unsigned int command_size = 0, header_size = 0, tstate_size = 0;
+ unsigned int hoffset = 0, foffset = 0, nfoffset = 0, vmoffset = 0;
+ unsigned int max_header_size = 0;
+ vm_offset_t header;
+ struct machine_slot *ms;
+ struct mach_header *mh;
+ struct segment_command *sc;
+ struct thread_command *tc;
+ vm_size_t size;
+ vm_prot_t prot = 0;
+ vm_prot_t maxprot = 0;
+ vm_inherit_t inherit = 0;
+ vm_offset_t offset;
+ int error1;
+ mythread_state_flavor_t flavors[MAX_TSTATE_FLAVORS];
+ vm_size_t nflavors;
+ int i;
+ int nesting_depth = 0;
+ kern_return_t kret;
+ struct vm_region_submap_info_64 vbr;
+ int vbrcount = 0;
+ tir_t tir1;
+
+ int panic_error = 0;
+ unsigned int txstart = 0;
+ unsigned int mach_section_count = 4;
+ unsigned int num_sects_txed = 0;
+
+
+ extern int SEGSIZE;
+
+ extern vm_offset_t sectTEXTB, sectDATAB, sectLINKB, sectPRELINKB;
+ extern int sectSizeTEXT, sectSizeDATA, sectSizeLINK, sectSizePRELINK;
+
+ map = kernel_map;
+ not_in_kdp = 0; /* Tell vm functions not to acquire locks */
+
+ thread_count = 1;
+ segment_count = get_vmmap_entries(map);
+
+ printf("Kernel map has %d entries\n", segment_count);
+
+ nflavors = kdp_mynum_flavors;
+ bcopy((char *)thread_flavor_array,(char *) flavors,sizeof(thread_flavor_array));
+
+ for (i = 0; i < nflavors; i++)
+ tstate_size += sizeof(mythread_state_flavor_t) +
+ (flavors[i].count * sizeof(int));
+
+ command_size = (segment_count + mach_section_count) *
+ sizeof(struct segment_command) +
+ thread_count*sizeof(struct thread_command) +
+ tstate_size*thread_count;
+
+ header_size = command_size + sizeof(struct mach_header);
+ header = (vm_offset_t) command_buffer;
+
+ /*
+ * Set up Mach-O header.
+ */
+ printf ("Generated Mach-O header size was %d\n", header_size);
+
+ mh = (struct mach_header *) header;
+ ms = &machine_slot[cpu_number()];
+ mh->magic = MH_MAGIC;
+ mh->cputype = ms->cpu_type;
+ mh->cpusubtype = ms->cpu_subtype;
+ mh->filetype = MH_CORE;
+ mh->ncmds = segment_count + thread_count + mach_section_count;
+ mh->sizeofcmds = command_size;
+ mh->flags = 0;
+
+ hoffset = sizeof(struct mach_header); /* offset into header */
+ foffset = round_page_32(header_size); /* offset into file */
+ /* Padding.. */
+ if ((foffset - header_size) < (4*sizeof(struct segment_command))) {
+ /* Hack */
+ foffset += ((4*sizeof(struct segment_command)) - (foffset-header_size));
+ }
+
+ max_header_size = foffset;
+
+ vmoffset = VM_MIN_ADDRESS; /* offset into VM */
+
+ /* Transmit the Mach-O MH_CORE header, and seek forward past the
+ * area reserved for the segment and thread commands
+ * to begin data transmission
+ */
+
+ if ((panic_error = kdp_send_panic_pkt (KDP_SEEK, NULL, sizeof(nfoffset) , &nfoffset)) < 0) {
+ printf ("kdp_send_panic_pkt failed with error %d\n", panic_error);
+ return -1;
+ }
+
+ if ((panic_error = kdp_send_panic_packets (KDP_DATA, NULL, sizeof(struct mach_header), (caddr_t) mh) < 0)) {
+ printf ("kdp_send_panic_packets failed with error %d\n", panic_error);
+ return -1 ;
+ }
+
+ if ((panic_error = kdp_send_panic_pkt (KDP_SEEK, NULL, sizeof(foffset) , &foffset) < 0)) {
+ printf ("kdp_send_panic_pkt failed with error %d\n", panic_error);
+ return (-1);
+ }
+ printf ("Transmitting kernel state, please wait: ");
+
+ while ((segment_count > 0) || (kret == KERN_SUCCESS)){
+ /* Check if we've transmitted all the kernel sections */
+ if (num_sects_txed == mach_section_count-1) {
+
+ while (1) {
+
+ /*
+ * Get region information for next region.
+ */
+
+ vbrcount = VM_REGION_SUBMAP_INFO_COUNT_64;
+ if((kret = vm_region_recurse_64(map,
+ &vmoffset, &size, &nesting_depth,
+ &vbr, &vbrcount)) != KERN_SUCCESS) {
+ break;
+ }
+
+ if(vbr.is_submap) {
+ nesting_depth++;
+ continue;
+ } else {
+ break;
+ }
+ }
+
+ if(kret != KERN_SUCCESS)
+ break;
+
+ prot = vbr.protection;
+ maxprot = vbr.max_protection;
+ inherit = vbr.inheritance;
+ }
+ else
+ {
+ switch (num_sects_txed) {
+ case 0:
+ {
+ /* Transmit the kernel text section */
+ vmoffset = sectTEXTB;
+ size = sectSizeTEXT;
+ }
+ break;
+ case 1:
+ {
+ vmoffset = sectDATAB;
+ size = sectSizeDATA;
+ }
+ break;
+ case 2:
+ {
+ vmoffset = sectPRELINKB;
+ size = sectSizePRELINK;
+ }
+ break;
+ case 3:
+ {
+ vmoffset = sectLINKB;
+ size = sectSizeLINK;
+ }
+ break;
+ /* TODO the lowmem vector area may be useful, but its transmission is
+ * disabled for now. The traceback table area should be transmitted
+ * as well - that's indirected from 0x5080.
+ */
+ }
+ num_sects_txed++;
+ }
+ /*
+ * Fill in segment command structure.
+ */
+
+ if (hoffset > max_header_size)
+ break;
+ sc = (struct segment_command *) (header);
+ sc->cmd = LC_SEGMENT;
+ sc->cmdsize = sizeof(struct segment_command);
+ sc->segname[0] = 0;
+ sc->vmaddr = vmoffset;
+ sc->vmsize = size;
+ sc->fileoff = foffset;
+ sc->filesize = size;
+ sc->maxprot = maxprot;
+ sc->initprot = prot;
+ sc->nsects = 0;
+
+ if ((panic_error = kdp_send_panic_pkt (KDP_SEEK, NULL, sizeof(hoffset) , &hoffset)) < 0) {
+ printf ("kdp_send_panic_pkt failed with error %d\n", panic_error);
+ return -1;
+ }
+
+ if ((panic_error = kdp_send_panic_packets (KDP_DATA, NULL, sizeof(struct segment_command) , (caddr_t) sc)) < 0) {
+ printf ("kdp_send_panic_packets failed with error %d\n", panic_error);
+ return -1 ;
+ }
+
+ /* Do not transmit memory tagged VM_MEMORY_IOKIT - instead, seek past that
+ * region on the server - this creates a hole in the file
+ */
+
+ if ((vbr.user_tag != VM_MEMORY_IOKIT)) {
+
+ if ((panic_error = kdp_send_panic_pkt (KDP_SEEK, NULL, sizeof(foffset) , &foffset)) < 0) {
+ printf ("kdp_send_panic_pkt failed with error %d\n", panic_error);
+ return (-1);
+ }
+
+ txstart = vmoffset;
+
+ if ((panic_error = kdp_send_panic_packets (KDP_DATA, NULL, size, (caddr_t) txstart)) < 0) {
+ printf ("kdp_send_panic_packets failed with error %d\n", panic_error);
+ return -1 ;
+ }
+ }
+
+ hoffset += sizeof(struct segment_command);
+ foffset += size;
+ vmoffset += size;
+ segment_count--;
+ }
+ tir1.header = header;
+ tir1.hoffset = 0;
+ tir1.flavors = flavors;
+ tir1.tstate_size = tstate_size;
+
+ /* Now send out the LC_THREAD load command, with the thread information
+ * for the current activation.
+ * Note that the corefile can contain LC_SEGMENT commands with file offsets
+ * that point past the edge of the corefile, in the event that the last N
+ * VM regions were all I/O mapped or otherwise non-transferable memory,
+ * not followed by a normal VM region; i.e. there will be no hole that
+ * reaches to the end of the core file.
+ */
+ kern_collectth_state (current_act(), &tir1);
+
+ if ((panic_error = kdp_send_panic_pkt (KDP_SEEK, NULL, sizeof(hoffset) , &hoffset)) < 0) {
+ printf ("kdp_send_panic_pkt failed with error %d\n", panic_error);
+ return -1;
+ }
+
+ if ((panic_error = kdp_send_panic_packets (KDP_DATA, NULL, tir1.hoffset , (caddr_t) header)) < 0) {
+ printf ("kdp_send_panic_packets failed with error %d\n", panic_error);
+ return -1 ;
+ }
+
+ /* last packet */
+ if ((panic_error = kdp_send_panic_pkt (KDP_EOF, NULL, 0, ((void *) 0))) < 0)
+ {
+ printf ("kdp_send_panic_pkt failed with error %d\n", panic_error);
+ return (-1) ;
+ }
+
+ out:
+ if (error == 0)
+ error = error1;
+ return (error);
+}
projects / apple / xnu.git / blobdiff