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[src/trunk]: src/sys/arch Drop NENTRY() from the x86 kernels, use ENTRY(). Wi...



details:   https://anonhg.NetBSD.org/src/rev/6c24932230b9
branches:  trunk
changeset: 324643:6c24932230b9
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sat Jul 14 14:29:40 2018 +0000

description:
Drop NENTRY() from the x86 kernels, use ENTRY(). With PMCs (and other hardware
tracing facilities) we have a much better ways of monitoring the CPU activity
than GPROF, without software modification.

Also I think GPROF has never worked, because the 'start' functions of both
i386 and amd64 use ENTRY(), and it would have caused a function call while the
kernel was not yet relocated.

diffstat:

 sys/arch/amd64/acpi/acpi_wakeup_low.S   |   6 +++---
 sys/arch/amd64/amd64/amd64_trap.S       |   4 ++--
 sys/arch/amd64/amd64/copy.S             |  10 +++++-----
 sys/arch/amd64/amd64/cpufunc.S          |   6 +++---
 sys/arch/amd64/amd64/linux32_sigcode.S  |   6 +++---
 sys/arch/amd64/amd64/lock_stubs.S       |   6 +++---
 sys/arch/amd64/amd64/locore.S           |   6 +++---
 sys/arch/amd64/amd64/netbsd32_sigcode.S |   4 ++--
 sys/arch/amd64/amd64/spl.S              |   6 +++---
 sys/arch/amd64/amd64/vector.S           |   6 +++---
 sys/arch/amd64/stand/prekern/trap.S     |   4 ++--
 sys/arch/i386/i386/bioscall.S           |   6 +++---
 sys/arch/i386/i386/copy.S               |  32 ++++++++++++++++----------------
 sys/arch/i386/i386/cpufunc.S            |   6 +++---
 sys/arch/i386/i386/i386_trap.S          |   6 +++---
 sys/arch/i386/i386/linux_sigcode.S      |   8 ++++----
 sys/arch/i386/i386/lock_stubs.S         |   6 +++---
 sys/arch/i386/i386/locore.S             |  12 ++++++------
 sys/arch/i386/i386/vector.S             |   8 ++++----
 sys/arch/i386/pnpbios/pnpbioscall.S     |   8 ++++----
 20 files changed, 78 insertions(+), 78 deletions(-)

diffs (truncated from 682 to 300 lines):

diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/acpi/acpi_wakeup_low.S
--- a/sys/arch/amd64/acpi/acpi_wakeup_low.S     Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/acpi/acpi_wakeup_low.S     Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: acpi_wakeup_low.S,v 1.9 2017/11/01 09:47:53 maxv Exp $ */
+/*     $NetBSD: acpi_wakeup_low.S,v 1.10 2018/07/14 14:29:40 maxv Exp $        */
 
 /*
  * Copyright (c) 2007 Joerg Sonnenberger <joerg%netbsd.org@localhost>
@@ -36,7 +36,7 @@
        .text
 
        .p2align 2, 0x90
-NENTRY(acpi_md_sleep_exit)
+ENTRY(acpi_md_sleep_exit)
        lgdt    ACPI_SUSPEND_GDT(%r8)
 
        /* Reload fixed descriptors for new GDT */
@@ -113,7 +113,7 @@
 END(acpi_md_sleep_exit)
 
        .p2align 2, 0x90
-NENTRY(acpi_md_sleep_prepare)
+ENTRY(acpi_md_sleep_prepare)
        movq    CPUVAR(SELF),%r8
        movq    %rbx,ACPI_SUSPEND_REG+(1*8)(%r8)
        movq    %rbp,ACPI_SUSPEND_REG+(2*8)(%r8)
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/amd64_trap.S
--- a/sys/arch/amd64/amd64/amd64_trap.S Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/amd64_trap.S Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: amd64_trap.S,v 1.43 2018/07/12 19:48:16 maxv Exp $     */
+/*     $NetBSD: amd64_trap.S,v 1.44 2018/07/14 14:29:40 maxv Exp $     */
 
 /*
  * Copyright (c) 1998, 2007, 2008, 2017 The NetBSD Foundation, Inc.
@@ -626,7 +626,7 @@
  * All traps go through here. Call the generic trap handler, and
  * check for ASTs afterwards.
  */
-NENTRY(alltraps)
+ENTRY(alltraps)
        INTRENTRY
 .Lalltraps_noentry:
        STI(si)
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/copy.S
--- a/sys/arch/amd64/amd64/copy.S       Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/copy.S       Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: copy.S,v 1.29 2018/01/07 12:42:46 maxv Exp $   */
+/*     $NetBSD: copy.S,v 1.30 2018/07/14 14:29:40 maxv Exp $   */
 
 /*
  * Copyright (c) 2001 Wasabi Systems, Inc.
@@ -236,16 +236,16 @@
        DEFERRED_SWITCH_CALL
 END(copyin)
 
-NENTRY(copy_efault)
+ENTRY(copy_efault)
        movq    $EFAULT,%rax
        ret
 END(copy_efault)
 
-NENTRY(kcopy_fault)
+ENTRY(kcopy_fault)
        ret
 END(kcopy_fault)
 
-NENTRY(copy_fault)
+ENTRY(copy_fault)
        SMAP_ENABLE
        ret
 END(copy_fault)
@@ -547,7 +547,7 @@
        ret
 END(ucas_efault)
 
-NENTRY(ucas_fault)
+ENTRY(ucas_fault)
        SMAP_ENABLE
        ret
 END(ucas_fault)
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/cpufunc.S
--- a/sys/arch/amd64/amd64/cpufunc.S    Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/cpufunc.S    Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpufunc.S,v 1.31 2017/11/01 09:17:28 maxv Exp $        */
+/*     $NetBSD: cpufunc.S,v 1.32 2018/07/14 14:29:40 maxv Exp $        */
 
 /*
  * Copyright (c) 1998, 2007, 2008 The NetBSD Foundation, Inc.
@@ -344,7 +344,7 @@
 /*
  * MSR operations fault handler
  */
-NENTRY(msr_onfault)
+ENTRY(msr_onfault)
        movq    CPUVAR(CURLWP), %r8
        movq    L_PCB(%r8), %r8
        movq    $0, PCB_ONFAULT(%r8)
@@ -499,7 +499,7 @@
        ret
 END(x86_mwait)
 
-NENTRY(x86_pause)
+ENTRY(x86_pause)
        pause
        ret
 END(x86_pause)
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/linux32_sigcode.S
--- a/sys/arch/amd64/amd64/linux32_sigcode.S    Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/linux32_sigcode.S    Sat Jul 14 14:29:40 2018 +0000
@@ -1,10 +1,10 @@
-/*     $NetBSD: linux32_sigcode.S,v 1.5 2017/11/01 09:38:43 maxv Exp $ */
+/*     $NetBSD: linux32_sigcode.S,v 1.6 2018/07/14 14:29:40 maxv Exp $ */
 
 #include "assym.h"
 #include <machine/asm.h>
 
        .code32
-NENTRY(linux32_sigcode)
+ENTRY(linux32_sigcode)
        call    *LINUX32_SF_HANDLER(%esp)
        leal    LINUX32_SF_SC(%esp),%ebx        /* scp */
        pushl   %eax
@@ -15,7 +15,7 @@
 END(linux32_sigcode)
 
        .balign 16
-NENTRY(linux32_rt_sigcode)
+ENTRY(linux32_rt_sigcode)
        call    *LINUX32_RT_SF_HANDLER(%esp)
        leal    LINUX32_RT_SF_UC(%esp),%ebx     /* scp */
        pushl   %eax
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/lock_stubs.S
--- a/sys/arch/amd64/amd64/lock_stubs.S Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/lock_stubs.S Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lock_stubs.S,v 1.28 2018/01/07 13:43:23 maxv Exp $     */
+/*     $NetBSD: lock_stubs.S,v 1.29 2018/07/14 14:29:40 maxv Exp $     */
 
 /*-
  * Copyright (c) 2006, 2007, 2008, 2009 The NetBSD Foundation, Inc.
@@ -307,7 +307,7 @@
        ret
 END(__cpu_simple_lock_init)
 
-NENTRY(__cpu_simple_lock)
+ENTRY(__cpu_simple_lock)
        movl    $0x0100, %eax
 1:
        LOCK(6)
@@ -324,7 +324,7 @@
        jmp     2b
 END(__cpu_simple_lock)
 
-NENTRY(__cpu_simple_unlock)
+ENTRY(__cpu_simple_unlock)
        movb    $0, (%rdi)
        ret
 END(__cpu_simple_unlock)
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/locore.S
--- a/sys/arch/amd64/amd64/locore.S     Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/locore.S     Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.S,v 1.170 2018/07/12 19:48:16 maxv Exp $        */
+/*     $NetBSD: locore.S,v 1.171 2018/07/14 14:29:40 maxv Exp $        */
 
 /*
  * Copyright-o-rama!
@@ -1278,7 +1278,7 @@
 /*
  * Syscall handler.
  */
-NENTRY(handle_syscall)
+ENTRY(handle_syscall)
        STI(si)
 
        movq    CPUVAR(CURLWP),%r14
@@ -1356,7 +1356,7 @@
  * This is a trampoline function pushed run by newly created LWPs
  * in order to do additional setup in their context.
  */
-NENTRY(lwp_trampoline)
+ENTRY(lwp_trampoline)
        movq    %rbp,%rsi
        movq    %rbp,%r14       /* for .Lsyscall_checkast */
        movq    %rax,%rdi
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/netbsd32_sigcode.S
--- a/sys/arch/amd64/amd64/netbsd32_sigcode.S   Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/netbsd32_sigcode.S   Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: netbsd32_sigcode.S,v 1.8 2017/11/01 09:38:43 maxv Exp $        */
+/*     $NetBSD: netbsd32_sigcode.S,v 1.9 2018/07/14 14:29:40 maxv Exp $        */
 
 /*
  * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@@ -37,7 +37,7 @@
  * Signal trampoline for 1.6 compatibility; copied to top of user stack.
  */
        .code32
-NENTRY(netbsd32_sigcode)
+ENTRY(netbsd32_sigcode)
        /*
         * Handler has returned here as if we called it.  The sigcontext
         * is on the stack after the 3 args "we" pushed.
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/spl.S
--- a/sys/arch/amd64/amd64/spl.S        Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/spl.S        Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: spl.S,v 1.34 2018/04/04 22:52:58 christos Exp $        */
+/*     $NetBSD: spl.S,v 1.35 2018/07/14 14:29:40 maxv Exp $    */
 
 /*
  * Copyright (c) 2003 Wasabi Systems, Inc.
@@ -137,7 +137,7 @@
  *
  *     %rax            prevlwp from cpu_switchto()
  */
-NENTRY(softintr_ret)
+ENTRY(softintr_ret)
        incl    CPUVAR(MTX_COUNT)       /* re-adjust after mi_switch */
        movl    $0,L_CTXSWTCH(%rax)     /* %rax from cpu_switchto */
        cli
@@ -149,7 +149,7 @@
  *
  * Software interrupt registration.
  */
-NENTRY(softint_trigger)
+ENTRY(softint_trigger)
        orl     %edi,CPUVAR(IPENDING)   /* atomic on local cpu */
        ret
 END(softint_trigger)
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/amd64/vector.S
--- a/sys/arch/amd64/amd64/vector.S     Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/amd64/vector.S     Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vector.S,v 1.63 2018/06/20 11:45:25 maxv Exp $ */
+/*     $NetBSD: vector.S,v 1.64 2018/07/14 14:29:40 maxv Exp $ */
 
 /*
  * Copyright (c) 1998, 2007, 2008 The NetBSD Foundation, Inc.
@@ -755,7 +755,7 @@
  */
 
 /* Hypervisor callback */
-NENTRY(hypervisor_callback)
+ENTRY(hypervisor_callback)
        movq    (%rsp),%rcx
        movq    8(%rsp),%r11
        addq    $16,%rsp
@@ -773,7 +773,7 @@
 END(hypervisor_callback)
 
 /* Panic? */
-NENTRY(failsafe_callback)
+ENTRY(failsafe_callback)
        movq    (%rsp),%rcx
        movq    8(%rsp),%r11
        addq    $16,%rsp
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/amd64/stand/prekern/trap.S
--- a/sys/arch/amd64/stand/prekern/trap.S       Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/amd64/stand/prekern/trap.S       Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: trap.S,v 1.3 2018/05/25 15:52:11 maxv Exp $    */
+/*     $NetBSD: trap.S,v 1.4 2018/07/14 14:29:40 maxv Exp $    */
 
 /*
  * Copyright (c) 2017 The NetBSD Foundation, Inc. All rights reserved.
@@ -167,7 +167,7 @@
  *  sf_rsp
  *  sf_ss
  */
-NENTRY(alltraps)
+ENTRY(alltraps)
        movq    %rsp,%rdi
        call    _C_LABEL(trap)
        /* NOTREACHED */
diff -r ba5b50a4ceed -r 6c24932230b9 sys/arch/i386/i386/bioscall.S
--- a/sys/arch/i386/i386/bioscall.S     Sat Jul 14 07:54:37 2018 +0000
+++ b/sys/arch/i386/i386/bioscall.S     Sat Jul 14 14:29:40 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bioscall.S,v 1.9 2010/07/24 00:45:54 jym Exp $ */
+/*     $NetBSD: bioscall.S,v 1.10 2018/07/14 14:29:40 maxv Exp $ */
 
 /*-
  * Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <machine/asm.h>
-__KERNEL_RCSID(0, "$NetBSD: bioscall.S,v 1.9 2010/07/24 00:45:54 jym Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bioscall.S,v 1.10 2018/07/14 14:29:40 maxv Exp $");
 
 #include <machine/bioscall.h>
 
@@ -63,7 +63,7 @@
  *     Fills in *regs with registers as returned by BIOS.
  */



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