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[src/trunk]: src/sys/arch Remove TRAPLOG from i386. Nowadays there are better...
details: https://anonhg.NetBSD.org/src/rev/d8014054daad
branches: trunk
changeset: 826619:d8014054daad
user: maxv <maxv%NetBSD.org@localhost>
date: Sun Sep 17 09:04:51 2017 +0000
description:
Remove TRAPLOG from i386. Nowadays there are better instrumentation tools,
in both software and hardware.
diffstat:
sys/arch/i386/i386/db_interface.c | 8 ++------
sys/arch/i386/i386/genassym.cf | 20 +-------------------
sys/arch/i386/i386/machdep.c | 11 ++---------
sys/arch/i386/include/frameasm.h | 39 ++-------------------------------------
sys/arch/x86/x86/cpu.c | 17 ++---------------
sys/arch/xen/x86/cpu.c | 15 ++-------------
6 files changed, 11 insertions(+), 99 deletions(-)
diffs (276 lines):
diff -r 7b41a0872339 -r d8014054daad sys/arch/i386/i386/db_interface.c
--- a/sys/arch/i386/i386/db_interface.c Sun Sep 17 08:10:08 2017 +0000
+++ b/sys/arch/i386/i386/db_interface.c Sun Sep 17 09:04:51 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: db_interface.c,v 1.74 2017/08/15 09:16:59 maxv Exp $ */
+/* $NetBSD: db_interface.c,v 1.75 2017/09/17 09:04:51 maxv Exp $ */
/*
* Mach Operating System
@@ -33,7 +33,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.74 2017/08/15 09:16:59 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.75 2017/09/17 09:04:51 maxv Exp $");
#include "opt_ddb.h"
#include "opt_multiprocessor.h"
@@ -276,10 +276,6 @@
regs->tf_ss = ddb_regs.tf_ss;
}
-#ifdef TRAPLOG
- wrmsr(MSR_DEBUGCTLMSR, 0x1);
-#endif
-
return (1);
}
diff -r 7b41a0872339 -r d8014054daad sys/arch/i386/i386/genassym.cf
--- a/sys/arch/i386/i386/genassym.cf Sun Sep 17 08:10:08 2017 +0000
+++ b/sys/arch/i386/i386/genassym.cf Sun Sep 17 09:04:51 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: genassym.cf,v 1.103 2017/08/12 13:16:14 maxv Exp $
+# $NetBSD: genassym.cf,v 1.104 2017/09/17 09:04:51 maxv Exp $
#
# Copyright (c) 1998, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -128,9 +128,6 @@
include <machine/isa_machdep.h>
endif
-include <machine/tlog.h>
-
-
include <sys/bus.h>
define PAGE_SIZE PAGE_SIZE
@@ -268,9 +265,6 @@
define CPU_INFO_VENDOR offsetof(struct cpu_info, ci_vendor[0])
define CPU_INFO_SIGNATURE offsetof(struct cpu_info, ci_signature)
-define CPU_TLOG_OFFSET offsetof(struct cpu_info, ci_tlog_offset)
-define CPU_TLOG_BASE offsetof(struct cpu_info, ci_tlog_base)
-
define CPU_INFO_GDT offsetof(struct cpu_info, ci_gdt)
define CPU_INFO_IPENDING offsetof(struct cpu_info, ci_ipending)
define CPU_INFO_IMASK offsetof(struct cpu_info, ci_imask)
@@ -321,18 +315,6 @@
define IS_MAXLEVEL offsetof(struct intrsource, is_maxlevel)
define IS_LWP offsetof(struct intrsource, is_lwp)
-define TREC_SP offsetof(struct trec, tr_sp)
-define TREC_HPC offsetof(struct trec, tr_hpc)
-define TREC_IPC offsetof(struct trec, tr_ipc)
-define TREC_TSC offsetof(struct trec, tr_tsc)
-define TREC_LBF offsetof(struct trec, tr_lbf)
-define TREC_LBT offsetof(struct trec, tr_lbt)
-define TREC_IBF offsetof(struct trec, tr_ibf)
-define TREC_IBT offsetof(struct trec, tr_ibt)
-
-define SIZEOF_TREC sizeof(struct trec)
-define SIZEOF_TLOG sizeof(struct tlog)
-
define IPL_NONE IPL_NONE
define IPL_PREEMPT IPL_PREEMPT
define IPL_SCHED IPL_SCHED
diff -r 7b41a0872339 -r d8014054daad sys/arch/i386/i386/machdep.c
--- a/sys/arch/i386/i386/machdep.c Sun Sep 17 08:10:08 2017 +0000
+++ b/sys/arch/i386/i386/machdep.c Sun Sep 17 09:04:51 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.792 2017/08/27 09:32:12 maxv Exp $ */
+/* $NetBSD: machdep.c,v 1.793 2017/09/17 09:04:51 maxv Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2000, 2004, 2006, 2008, 2009
@@ -67,7 +67,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.792 2017/08/27 09:32:12 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.793 2017/09/17 09:04:51 maxv Exp $");
#include "opt_beep.h"
#include "opt_compat_freebsd.h"
@@ -438,13 +438,6 @@
multiboot_print_info();
#endif
-#ifdef TRAPLOG
- /*
- * Enable recording of branch from/to in MSR's
- */
- wrmsr(MSR_DEBUGCTLMSR, 0x1);
-#endif
-
#if NCARDBUS > 0
/* Tell RBUS how much RAM we have, so it can use heuristics. */
rbus_min_start_hint(ctob((psize_t)physmem));
diff -r 7b41a0872339 -r d8014054daad sys/arch/i386/include/frameasm.h
--- a/sys/arch/i386/include/frameasm.h Sun Sep 17 08:10:08 2017 +0000
+++ b/sys/arch/i386/include/frameasm.h Sun Sep 17 09:04:51 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: frameasm.h,v 1.16 2017/06/14 17:09:00 maxv Exp $ */
+/* $NetBSD: frameasm.h,v 1.17 2017/09/17 09:04:51 maxv Exp $ */
#ifndef _I386_FRAMEASM_H_
#define _I386_FRAMEASM_H_
@@ -27,40 +27,6 @@
testb $0xff,EVTCHN_UPCALL_PENDING(reg)
#endif
-#ifndef TRAPLOG
-#define TLOG /**/
-#else
-/*
- * Fill in trap record
- */
-#define TLOG \
-9: \
- movl %fs:CPU_TLOG_OFFSET, %eax; \
- movl %fs:CPU_TLOG_BASE, %ebx; \
- addl $SIZEOF_TREC,%eax; \
- andl $SIZEOF_TLOG-1,%eax; \
- addl %eax,%ebx; \
- movl %eax,%fs:CPU_TLOG_OFFSET; \
- movl %esp,TREC_SP(%ebx); \
- movl $9b,TREC_HPC(%ebx); \
- movl TF_EIP(%esp),%eax; \
- movl %eax,TREC_IPC(%ebx); \
- rdtsc ; \
- movl %eax,TREC_TSC(%ebx); \
- movl $MSR_LASTBRANCHFROMIP,%ecx; \
- rdmsr ; \
- movl %eax,TREC_LBF(%ebx); \
- incl %ecx ; \
- rdmsr ; \
- movl %eax,TREC_LBT(%ebx); \
- incl %ecx ; \
- rdmsr ; \
- movl %eax,TREC_IBF(%ebx); \
- incl %ecx ; \
- rdmsr ; \
- movl %eax,TREC_IBT(%ebx)
-#endif
-
/*
* These are used on interrupt or trap entry or exit.
*/
@@ -83,8 +49,7 @@
movl $GSEL(GCPU_SEL, SEL_KPL),%eax ; \
movl %ecx,TF_ECX(%esp) ; \
movl %eax,%fs ; \
- cld ; \
- TLOG
+ cld
/*
* INTRFASTEXIT should be in sync with trap(), resume_iret and friends.
diff -r 7b41a0872339 -r d8014054daad sys/arch/x86/x86/cpu.c
--- a/sys/arch/x86/x86/cpu.c Sun Sep 17 08:10:08 2017 +0000
+++ b/sys/arch/x86/x86/cpu.c Sun Sep 17 09:04:51 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.c,v 1.134 2017/08/27 09:32:12 maxv Exp $ */
+/* $NetBSD: cpu.c,v 1.135 2017/09/17 09:04:51 maxv Exp $ */
/*
* Copyright (c) 2000-2012 NetBSD Foundation, Inc.
@@ -62,7 +62,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.134 2017/08/27 09:32:12 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.135 2017/09/17 09:04:51 maxv Exp $");
#include "opt_ddb.h"
#include "opt_mpbios.h" /* for MPDEBUG */
@@ -105,10 +105,6 @@
#include <x86/fpu.h>
-#ifdef i386
-#include <machine/tlog.h>
-#endif
-
#if NLAPIC > 0
#include <machine/apicvar.h>
#include <machine/i82489reg.h>
@@ -153,18 +149,12 @@
* CPU, on uniprocessors). The CPU info list is initialized to
* point at it.
*/
-#ifdef TRAPLOG
-struct tlog tlog_primary;
-#endif
struct cpu_info cpu_info_primary __aligned(CACHE_LINE_SIZE) = {
.ci_dev = 0,
.ci_self = &cpu_info_primary,
.ci_idepth = -1,
.ci_curlwp = &lwp0,
.ci_curldt = -1,
-#ifdef TRAPLOG
- .ci_tlog_base = &tlog_primary,
-#endif
};
struct cpu_info *cpu_info_list = &cpu_info_primary;
@@ -327,9 +317,6 @@
KM_SLEEP);
ci = (struct cpu_info *)roundup2(ptr, CACHE_LINE_SIZE);
ci->ci_curldt = -1;
-#ifdef TRAPLOG
- ci->ci_tlog_base = kmem_zalloc(sizeof(struct tlog), KM_SLEEP);
-#endif
} else {
aprint_naive(": %s Processor\n",
caa->cpu_role == CPU_ROLE_SP ? "Single" : "Boot");
diff -r 7b41a0872339 -r d8014054daad sys/arch/xen/x86/cpu.c
--- a/sys/arch/xen/x86/cpu.c Sun Sep 17 08:10:08 2017 +0000
+++ b/sys/arch/xen/x86/cpu.c Sun Sep 17 09:04:51 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.c,v 1.111 2017/07/06 20:26:05 bouyer Exp $ */
+/* $NetBSD: cpu.c,v 1.112 2017/09/17 09:04:51 maxv Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -65,7 +65,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.111 2017/07/06 20:26:05 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.112 2017/09/17 09:04:51 maxv Exp $");
#include "opt_ddb.h"
#include "opt_multiprocessor.h"
@@ -148,20 +148,12 @@
* CPU, on uniprocessors). The CPU info list is initialized to
* point at it.
*/
-#ifdef TRAPLOG
-#include <machine/tlog.h>
-struct tlog tlog_primary;
-#endif
struct cpu_info cpu_info_primary __aligned(CACHE_LINE_SIZE) = {
.ci_dev = 0,
.ci_self = &cpu_info_primary,
.ci_idepth = -1,
.ci_curlwp = &lwp0,
.ci_curldt = -1,
-#ifdef TRAPLOG
- .ci_tlog = &tlog_primary,
-#endif
-
};
struct cpu_info phycpu_info_primary __aligned(CACHE_LINE_SIZE) = {
.ci_dev = 0,
@@ -386,9 +378,6 @@
KM_SLEEP);
ci = (struct cpu_info *)roundup2(ptr, CACHE_LINE_SIZE);
memset(ci, 0, sizeof(*ci));
-#ifdef TRAPLOG
- ci->ci_tlog_base = kmem_zalloc(sizeof(struct tlog), KM_SLEEP);
-#endif
} else {
aprint_naive(": %s Processor\n",
caa->cpu_role == CPU_ROLE_SP ? "Single" : "Boot");
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