*
* @APPLE_LICENSE_HEADER_START@
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * 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. 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
+ * This 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
extern int debugger_active[NCPUS];
extern task_t bsd_init_task;
extern char init_task_failure_data[];
-
+extern int not_in_kdp;
#define PROT_EXEC (VM_PROT_EXECUTE)
#define PROT_RO (VM_PROT_READ)
addr64_t dar,
char *message);
+static void handleMck(struct savearea *ssp); /* Common machine check handler */
+
+
struct savearea *trap(int trapno,
struct savearea *ssp,
unsigned int dsisr,
switch (trapno) {
case T_PREEMPT: /* Handle a preempt trap */
- ast_taken(AST_PREEMPT, FALSE);
+ ast_taken(AST_PREEMPTION, FALSE);
break;
case T_PERF_MON:
*/
case T_DECREMENTER:
case T_IN_VAIN: /* Shouldn't ever see this, lowmem_vectors eats it */
- case T_MACHINE_CHECK:
case T_SYSTEM_MANAGEMENT:
case T_ALTIVEC_ASSIST:
case T_INTERRUPT:
break;
+/*
+ * Here we handle a machine check in the kernel
+ */
+
+ case T_MACHINE_CHECK:
+ handleMck(ssp); /* Common to both user and kernel */
+ break;
+
+
case T_ALIGNMENT:
/*
* If enaNotifyEMb is set, we get here, and
break;
case T_DATA_ACCESS:
-
#if MACH_KDB
mp_disable_preemption();
if (debug_mode
}
mp_enable_preemption();
#endif /* MACH_KDB */
+ /* can we take this during normal panic dump operation? */
+ if (debug_mode
+ && debugger_active[cpu_number()]
+ && !not_in_kdp) {
+ /*
+ * Access fault while in kernel core dump.
+ */
+ kdp_dump_trap(trapno, ssp);
+ }
+
if(ssp->save_dsisr & dsiInvMode) { /* Did someone try to reserve cache inhibited? */
panic("trap: disallowed access to cache inhibited memory - %016llX\n", dar);
*/
case T_DECREMENTER:
case T_IN_VAIN: /* Shouldn't ever see this, lowmem_vectors eats it */
- case T_MACHINE_CHECK:
case T_INTERRUPT:
case T_FP_UNAVAILABLE:
case T_SYSTEM_MANAGEMENT:
cpu_number(), trapno, dsisr, dar, ssp->save_srr0, ssp->save_srr1);
break;
+
+/*
+ * Here we handle a machine check in user state
+ */
+
+ case T_MACHINE_CHECK:
+ handleMck(ssp); /* Common to both user and kernel */
+ break;
+
case T_RESET:
ml_set_interrupts_enabled(FALSE); /* Turn off interruptions */
if (!Call_Debugger(trapno, ssp))
unsigned int inst;
char *iaddr;
- iaddr = (char *)ssp->save_srr0; /* Trim from long long and make a char pointer */
+ iaddr = CAST_DOWN(char *, ssp->save_srr0); /* Trim from long long and make a char pointer */
if (copyin(iaddr, (char *) &inst, 4 )) panic("copyin failed\n");
if(dgWork.dgFlags & enaDiagTrap) { /* Is the diagnostic trap enabled? */
panic(message);
}
+char *corr[2] = {"uncorrected", "corrected "};
+
+void handleMck(struct savearea *ssp) { /* Common machine check handler */
+
+ int cpu;
+
+ cpu = cpu_number();
+
+ printf("Machine check (%d) - %s - pc = %016llX, msr = %016llX, dsisr = %08X, dar = %016llX\n",
+ cpu, corr[ssp->save_hdr.save_misc3], ssp->save_srr0, ssp->save_srr1, ssp->save_dsisr, ssp->save_dar); /* Tell us about it */
+ printf("Machine check (%d) - AsyncSrc = %016llX, CoreFIR = %016llx\n", cpu, ssp->save_xdat0, ssp->save_xdat1);
+ printf("Machine check (%d) - L2FIR = %016llX, BusFir = %016llx\n", cpu, ssp->save_xdat2, ssp->save_xdat3);
+
+ if(ssp->save_hdr.save_misc3) return; /* Leave the the machine check was recovered */
+
+ panic("Uncorrectable machine check: pc = %016llX, msr = %016llX, dsisr = %08X, dar = %016llX\n"
+ " AsyncSrc = %016llX, CoreFIR = %016llx\n"
+ " L2FIR = %016llX, BusFir = %016llx\n",
+ ssp->save_srr0, ssp->save_srr1, ssp->save_dsisr, ssp->save_dar,
+ ssp->save_xdat0, ssp->save_xdat1, ssp->save_xdat2, ssp->save_xdat3);
+
+ return;
+}
+
void
thread_syscall_return(
kern_return_t ret)
projects / apple / xnu.git / blobdiff