Module Name: src
Committed By: ryo
Date: Sat Jul 21 13:23:49 UTC 2018
Modified Files:
src/sys/arch/aarch64/aarch64: fault.c
Log Message:
return correct signo and code in accordance with return value of uvm_fault.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/aarch64/aarch64/fault.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/aarch64/aarch64/fault.c
diff -u src/sys/arch/aarch64/aarch64/fault.c:1.5 src/sys/arch/aarch64/aarch64/fault.c:1.6
--- src/sys/arch/aarch64/aarch64/fault.c:1.5 Fri Jul 20 07:12:50 2018
+++ src/sys/arch/aarch64/aarch64/fault.c Sat Jul 21 13:23:48 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: fault.c,v 1.5 2018/07/20 07:12:50 ryo Exp $ */
+/* $NetBSD: fault.c,v 1.6 2018/07/21 13:23:48 ryo Exp $ */
/*
* Copyright (c) 2017 Ryo Shimizu <r...@nerv.org>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fault.c,v 1.5 2018/07/20 07:12:50 ryo Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fault.c,v 1.6 2018/07/21 13:23:48 ryo Exp $");
#include "opt_ddb.h"
#include "opt_uvmhist.h"
@@ -160,6 +160,7 @@ data_abort_handler(struct trapframe *tf,
UVMHIST_LOG(pmaphist, "use user vm_map %p (kernel_map=%p)",
map, kernel_map, 0, 0);
} else {
+ error = EINVAL;
goto do_fault;
}
@@ -211,7 +212,8 @@ data_abort_handler(struct trapframe *tf,
fsc = __SHIFTOUT(esr, ESR_ISS_DATAABORT_DFSC); /* also IFSC */
if (user) {
if (!fatalabort) {
- if (error == ENOMEM) {
+ switch (error) {
+ case ENOMEM:
printf("UVM: pid %d (%s), uid %d killed: "
"out of swap\n",
l->l_proc->p_pid, l->l_proc->p_comm,
@@ -219,69 +221,60 @@ data_abort_handler(struct trapframe *tf,
kauth_cred_geteuid(l->l_cred) : -1);
do_trapsignal(l, SIGKILL, 0,
(void *)tf->tf_far, esr);
- goto done_userfault;
- } else if (error == EACCES) {
+ break;
+ case EACCES:
do_trapsignal(l, SIGSEGV, SEGV_ACCERR,
(void *)tf->tf_far, esr);
- goto done_userfault;
+ break;
+ case EINVAL:
+ do_trapsignal(l, SIGBUS, BUS_ADRERR,
+ (void *)tf->tf_far, esr);
+ break;
+ default:
+ do_trapsignal(l, SIGSEGV, SEGV_MAPERR,
+ (void *)tf->tf_far, esr);
+ break;
+ }
+ } else {
+ /*
+ * fatal abort in usermode
+ */
+ switch (esr) {
+ case ESR_ISS_FSC_TLB_CONFLICT_FAULT:
+ case ESR_ISS_FSC_LOCKDOWN_ABORT:
+ case ESR_ISS_FSC_UNSUPPORTED_EXCLUSIVE:
+ case ESR_ISS_FSC_FIRST_LEVEL_DOMAIN_FAULT:
+ case ESR_ISS_FSC_SECOND_LEVEL_DOMAIN_FAULT:
+ default:
+ do_trapsignal(l, SIGSEGV, SEGV_MAPERR,
+ (void *)tf->tf_far, esr);
+ break;
+ case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_0:
+ case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_1:
+ case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_2:
+ case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_3:
+ do_trapsignal(l, SIGBUS, BUS_ADRERR,
+ (void *)tf->tf_far, esr);
+ break;
+ case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT:
+ case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_0:
+ case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_1:
+ case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_2:
+ case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_3:
+ case ESR_ISS_FSC_SYNC_PARITY_ERROR:
+ case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_0:
+ case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_1:
+ case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_2:
+ case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_3:
+ do_trapsignal(l, SIGBUS, BUS_OBJERR,
+ (void *)tf->tf_far, esr);
+ break;
+ case ESR_ISS_FSC_ALIGNMENT_FAULT:
+ do_trapsignal(l, SIGBUS, BUS_ADRALN,
+ (void *)tf->tf_far, esr);
+ break;
}
- /* if other error, select signal by ESR */
- }
-
- /*
- * fatal abort in usermode
- */
- switch (esr) {
- case ESR_ISS_FSC_ACCESS_FAULT_0:
- case ESR_ISS_FSC_ACCESS_FAULT_1:
- case ESR_ISS_FSC_ACCESS_FAULT_2:
- case ESR_ISS_FSC_ACCESS_FAULT_3:
- case ESR_ISS_FSC_PERM_FAULT_0:
- case ESR_ISS_FSC_PERM_FAULT_1:
- case ESR_ISS_FSC_PERM_FAULT_2:
- case ESR_ISS_FSC_PERM_FAULT_3:
- do_trapsignal(l, SIGSEGV, SEGV_ACCERR,
- (void *)tf->tf_far, esr);
- break;
- case ESR_ISS_FSC_TRANSLATION_FAULT_0:
- case ESR_ISS_FSC_TRANSLATION_FAULT_1:
- case ESR_ISS_FSC_TRANSLATION_FAULT_2:
- case ESR_ISS_FSC_TRANSLATION_FAULT_3:
- case ESR_ISS_FSC_TLB_CONFLICT_FAULT:
- case ESR_ISS_FSC_LOCKDOWN_ABORT:
- case ESR_ISS_FSC_UNSUPPORTED_EXCLUSIVE:
- case ESR_ISS_FSC_FIRST_LEVEL_DOMAIN_FAULT:
- case ESR_ISS_FSC_SECOND_LEVEL_DOMAIN_FAULT:
- default:
- do_trapsignal(l, SIGSEGV, SEGV_MAPERR,
- (void *)tf->tf_far, esr);
- break;
- case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_0:
- case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_1:
- case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_2:
- case ESR_ISS_FSC_ADDRESS_SIZE_FAULT_3:
- do_trapsignal(l, SIGBUS, BUS_ADRERR,
- (void *)tf->tf_far, esr);
- break;
- case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT:
- case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_0:
- case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_1:
- case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_2:
- case ESR_ISS_FSC_SYNC_EXTERNAL_ABORT_TTWALK_3:
- case ESR_ISS_FSC_SYNC_PARITY_ERROR:
- case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_0:
- case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_1:
- case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_2:
- case ESR_ISS_FSC_SYNC_PARITY_ERROR_ON_TTWALK_3:
- do_trapsignal(l, SIGBUS, BUS_OBJERR,
- (void *)tf->tf_far, esr);
- break;
- case ESR_ISS_FSC_ALIGNMENT_FAULT:
- do_trapsignal(l, SIGBUS, BUS_ADRALN,
- (void *)tf->tf_far, esr);
- break;
}
- done_userfault:
#undef DEBUG_DUMP_ON_USERFAULT /* DEBUG */
#undef DEBUG_DDB_ON_USERFAULT /* DEBUG */
