xnu-792.24.17.tar.gz

[apple/xnu.git] / osfmk / kdp / ml / ppc / kdp_machdep.c

diff --git a/osfmk/kdp/ml/ppc/kdp_machdep.c b/osfmk/kdp/ml/ppc/kdp_machdep.c
index f2d2df2e5bda227617d9069953a84e22d7a80d9a..8d90afd7df761bd50ceddb082b6ca6cca474a142 100644 (file)
--- a/osfmk/kdp/ml/ppc/kdp_machdep.c
+++ b/osfmk/kdp/ml/ppc/kdp_machdep.c
@@ -29,12 +29,6 @@
 #include <kern/debug.h>
 #include <IOKit/IOPlatformExpert.h>
 
-
-#include <kern/thread.h>
-#include <ppc/thread.h>
-#include <vm/vm_map.h>
-#include <ppc/pmap.h>
-
 #define KDP_TEST_HARNESS 0
 #if KDP_TEST_HARNESS
 #define dprintf(x) kprintf x
@@ -48,21 +42,6 @@ void kdp_trap( unsigned int, struct savearea *saved_state);
 int kdp_getc(void);
 boolean_t kdp_call_kdb(void);
 
-extern pmap_t kdp_pmap;
-extern uint32_t kdp_src_high32;
-
-
-extern unsigned kdp_vm_read(caddr_t src, caddr_t dst, unsigned len);
-
-int
-machine_trace_thread(thread_t thread, uint32_t tracepos, uint32_t tracebound, int nframes, boolean_t user_p);
-
-int
-machine_trace_thread64(thread_t thread, uint32_t tracepos, uint32_t tracebound, int nframes, boolean_t user_p);
-
-unsigned
-machine_read64(addr64_t srcaddr, caddr_t dstaddr, uint32_t len);
-
 void
 kdp_exception(
     unsigned char      *pkt,
@@ -649,151 +628,3 @@ unsigned int kdp_ml_get_breakinsn(void)
 {
   return 0x7fe00008;
 }
-#define LR_OFFSET 8
-#define LR_OFFSET64 16
-
-int
-machine_trace_thread(thread_t thread, uint32_t tracepos, uint32_t tracebound, int nframes, boolean_t user_p)
-{
-       uint32_t *tracebuf = (uint32_t *)tracepos;
-       uint32_t fence = 0;
-       uint32_t stackptr = 0;
-       uint32_t stacklimit = 0xb0000000;
-       int framecount = 0;
-       uint32_t init_srr0 = 0;
-       uint32_t prevsp = 0;
-       uint32_t framesize = 2 * sizeof(vm_offset_t);
-       
-       if (user_p) {
-               /* Examine the user savearea */
-               init_srr0 = thread->machine.upcb->save_srr0;
-               stackptr = thread->machine.upcb->save_r1;
-               /* This bound isn't useful, but it doesn't hinder us */
-               stacklimit = 0xffffffff;
-               kdp_pmap = thread->task->map->pmap;
-       }
-       else {
-               stackptr = thread->machine.pcb->save_r1;
-               init_srr0 = thread->machine.pcb->save_srr0;
-       }
-       /* Fill in the "current" program counter */
-       *tracebuf++ = init_srr0;
-
-       for (framecount = 0; framecount < nframes; framecount++) {
-/* Bounds check */
-               if ((tracebound - ((uint32_t) tracebuf)) < (4 * framesize)) {
-                       tracebuf--;
-                       break;
-               }
-
-               *tracebuf++ = stackptr;
-/* Invalid frame, or hit fence */
-               if (!stackptr || (stackptr == fence)) {
-                       break;
-               }
-/* Stack grows downward */             
-               if (stackptr < prevsp) {
-                       break;
-               }
-/* Unaligned frame */          
-               if (stackptr & 0x000000F) {
-                       break;
-               }
-               if (stackptr > stacklimit) {
-                       break;
-               }
-/* Assume there's a saved link register, and read it */
-               if (kdp_vm_read((caddr_t) (stackptr + LR_OFFSET), (caddr_t) tracebuf, sizeof(caddr_t)) != sizeof(caddr_t)) {
-                       break;
-               }
-
-               tracebuf++;
-               prevsp = stackptr;
-/* Next frame */
-               if (kdp_vm_read((caddr_t) stackptr, (caddr_t) &stackptr, sizeof(caddr_t)) != sizeof(caddr_t)) {
-                       *tracebuf++ = 0;
-                       break;
-               }
-       }
-/* Reset the target pmap */
-       kdp_pmap = 0;
-       return ((uint32_t) tracebuf - tracepos);
-}
-
-/* Routine to encapsulate the 64-bit address read hack*/
-unsigned
-machine_read64(addr64_t srcaddr, caddr_t dstaddr, uint32_t len)
-{
-       uint32_t kdp_vm_read_low32;
-       unsigned retval;
-       
-       kdp_src_high32 = srcaddr >> 32;
-       kdp_vm_read_low32 = srcaddr & 0x00000000FFFFFFFFUL;
-       retval = kdp_vm_read((caddr_t)kdp_vm_read_low32, dstaddr, len);
-       kdp_src_high32 = 0;
-       return retval;
-}
-
-int
-machine_trace_thread64(thread_t thread, uint32_t tracepos, uint32_t tracebound, int nframes, boolean_t user_p)
-{
-       uint64_t *tracebuf = (uint64_t *)tracepos;
-       uint32_t fence = 0;
-       addr64_t stackptr = 0;
-       uint64_t stacklimit = 0xb0000000;
-       int framecount = 0;
-       addr64_t init_srr0 = 0;
-       addr64_t prevsp = 0;
-       unsigned framesize = 2 * sizeof(addr64_t);
-       
-       if (user_p) {
-               init_srr0 = thread->machine.upcb->save_srr0;
-               stackptr = thread->machine.upcb->save_r1;
-               stacklimit = 0xffffffffffffffffULL;
-               kdp_pmap = thread->task->map->pmap;
-       }
-       else {
-               stackptr = thread->machine.pcb->save_r1;
-               init_srr0 = thread->machine.pcb->save_srr0;
-       }
-       
-       *tracebuf++ = init_srr0;
-
-       for (framecount = 0; framecount < nframes; framecount++) {
-
-               if ((tracebound - ((uint32_t) tracebuf)) < (4 * framesize)) {
-                       tracebuf--;
-                       break;
-               }
-
-               *tracebuf++ = stackptr;
-
-               if (!stackptr || (stackptr == fence)){
-                       break;
-               }
-               if (stackptr < prevsp) {
-                       break;
-               }
-               if (stackptr & 0x000000F) {
-                       break;
-               }
-               if (stackptr > stacklimit) {
-                       break;
-               }
-
-               if (machine_read64(stackptr+LR_OFFSET64, (caddr_t) tracebuf, sizeof(addr64_t)) != sizeof(addr64_t)) {
-                       break;
-               }
-               tracebuf++;
-               
-               prevsp = stackptr;
-               if (machine_read64(stackptr, (caddr_t) &stackptr, sizeof(addr64_t)) != sizeof(addr64_t)) {
-                       *tracebuf++ = 0;
-                       break;
-               }
-       }
-
-       kdp_pmap = 0;
-
-       return ((uint32_t) tracebuf - tracepos);
-}