xnu-1504.15.3.tar.gz

[apple/xnu.git] / bsd / dev / ppc / fasttrap_isa.c

diff --git a/bsd/dev/ppc/fasttrap_isa.c b/bsd/dev/ppc/fasttrap_isa.c
index 33b7ff4d4a7bb6c08ead10ac38ad5f567134bb1e..10e2edd0856c616434f59130d3510fba7453d828 100644 (file)
--- a/bsd/dev/ppc/fasttrap_isa.c
+++ b/bsd/dev/ppc/fasttrap_isa.c
@@ -48,12 +48,12 @@
  */
 
 /*
  */
 
 /*

- * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.

  * Use is subject to license terms.
  */
 
 /*
  * Use is subject to license terms.
  */
 
 /*

- * #pragma ident       "@(#)fasttrap_isa.c     1.23    06/09/19 SMI"
+ * #pragma ident       "@(#)fasttrap_isa.c     1.27    08/04/09 SMI"

  */
 
 #ifdef KERNEL
  */
 
 #ifdef KERNEL


@@ -76,8 +76,10 @@
 #include <mach/task.h>
 #include <vm/pmap.h>
 #include <vm/vm_map.h> /* All the bits we care about are guarded by MACH_KERNEL_PRIVATE :-( */
 #include <mach/task.h>
 #include <vm/pmap.h>
 #include <vm/vm_map.h> /* All the bits we care about are guarded by MACH_KERNEL_PRIVATE :-( */

+extern dtrace_id_t dtrace_probeid_error;

 
 

-#define proc_t struct proc
+/* Solaris proc_t is the struct. Darwin's proc_t is a pointer to it. */
+#define proc_t struct proc /* Steer clear of the Darwin typedef for proc_t */

 
 static int32_t branchtaken(int32_t bo, int32_t bi, ppc_saved_state_t *sv);
 static int32_t dtrace_decode_ppc(uint32_t inst);
 
 static int32_t branchtaken(int32_t bo, int32_t bi, ppc_saved_state_t *sv);
 static int32_t dtrace_decode_ppc(uint32_t inst);


@@ -334,7 +336,7 @@ fasttrap_return_common(ppc_saved_state_t *sv, user_addr_t pc, pid_t pid, user_ad
 
        for (tp = bucket->ftb_data; tp != NULL; tp = tp->ftt_next) {
                if (pid == tp->ftt_pid && pc == tp->ftt_pc &&
 
        for (tp = bucket->ftb_data; tp != NULL; tp = tp->ftt_next) {
                if (pid == tp->ftt_pid && pc == tp->ftt_pc &&

-                   !tp->ftt_proc->ftpc_defunct)
+                   tp->ftt_proc->ftpc_acount != 0)

                        break;
        }
 
                        break;
        }
 


@@ -358,9 +360,15 @@ fasttrap_return_common(ppc_saved_state_t *sv, user_addr_t pc, pid_t pid, user_ad
                        continue;                                                       /* Yeah, skip this one... */
 
                DTRACE_CPUFLAG_SET(CPU_DTRACE_USTACK_FP);
                        continue;                                                       /* Yeah, skip this one... */
 
                DTRACE_CPUFLAG_SET(CPU_DTRACE_USTACK_FP);

-               dtrace_probe(id->fti_probe->ftp_id,
-                       pc - id->fti_probe->ftp_faddr,
-                       sv->save_r3, sv->save_r4, 0, 0);
+               if (ISSET(current_proc()->p_lflag, P_LNOATTACH)) {
+                       dtrace_probe(dtrace_probeid_error, 0 /* state */, 
+                                    id->fti_probe->ftp_id, 1 /* ndx */, -1 /* offset */, 
+                                    DTRACEFLT_UPRIV);
+               } else {
+                       dtrace_probe(id->fti_probe->ftp_id,
+                               pc - id->fti_probe->ftp_faddr,
+                               sv->save_r3, sv->save_r4, 0, 0);
+               }

                DTRACE_CPUFLAG_CLEAR(CPU_DTRACE_USTACK_FP);
        }
 
                DTRACE_CPUFLAG_CLEAR(CPU_DTRACE_USTACK_FP);
        }
 


@@ -441,7 +449,7 @@ fasttrap_pid_probe(ppc_saved_state_t *sv)
         */
        for (tp = bucket->ftb_data; tp != NULL; tp = tp->ftt_next) {
                if (pid == tp->ftt_pid && (sv->save_srr0 == tp->ftt_pc) &&
         */
        for (tp = bucket->ftb_data; tp != NULL; tp = tp->ftt_next) {
                if (pid == tp->ftt_pid && (sv->save_srr0 == tp->ftt_pc) &&

-                   !tp->ftt_proc->ftpc_defunct)
+                   tp->ftt_proc->ftpc_acount != 0)

                        break;
        }
 
                        break;
        }
 


@@ -461,7 +469,11 @@ fasttrap_pid_probe(ppc_saved_state_t *sv)
                for (id = tp->ftt_ids; id != NULL; id = id->fti_next) {
                        fasttrap_probe_t *probe = id->fti_probe;
                        
                for (id = tp->ftt_ids; id != NULL; id = id->fti_next) {
                        fasttrap_probe_t *probe = id->fti_probe;
                        

-                       if (id->fti_ptype == DTFTP_ENTRY) {
+                       if (ISSET(current_proc()->p_lflag, P_LNOATTACH)) {
+                               dtrace_probe(dtrace_probeid_error, 0 /* state */, 
+                                    id->fti_probe->ftp_id, 1 /* ndx */, -1 /* offset */, 
+                                    DTRACEFLT_UPRIV);
+                       } else if (id->fti_ptype == DTFTP_ENTRY) {

                                /*
                                 * We note that this was an entry
                                 * probe to help ustack() find the
                                /*
                                 * We note that this was an entry
                                 * probe to help ustack() find the