From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-38725-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 6631 invoked by alias); 23 Feb 2011 05:20:30 -0000
Received: (qmail 6588 invoked by uid 22791); 23 Feb 2011 05:20:26 -0000
X-SWARE-Spam-Status: No, hits=-1.9 required=5.0	tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,TW_CL,TW_FH,TW_FN,TW_MK,TW_PX
X-Spam-Check-By: sourceware.org
Received: from mail-yw0-f41.google.com (HELO mail-yw0-f41.google.com) (209.85.213.41)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 23 Feb 2011 05:20:17 +0000
Received: by yws5 with SMTP id 5so1747404yws.0        for <gdb@sourceware.org>; Tue, 22 Feb 2011 21:20:15 -0800 (PST)
Received: by 10.236.102.141 with SMTP id d13mr6478171yhg.25.1298438414180; Tue, 22 Feb 2011 21:20:14 -0800 (PST)
MIME-Version: 1.0
Received: by 10.147.125.2 with HTTP; Tue, 22 Feb 2011 21:19:54 -0800 (PST)
In-Reply-To: <AANLkTik+beFdZZHLyei044q8EPHwvmiKoFAvAHsNuhmw@mail.gmail.com>
References: <AANLkTimewZ4QhxzL2vOYYV85pegy8Fu6Rb4XUAPqGUXS@mail.gmail.com> <AANLkTim4N9n5XY5ecso-b3w6pOFY6JMn5O9TKrvoqs1b@mail.gmail.com> <AANLkTimbrZO+g2Hp8wv16j5M5yPdx0KEtkR9j7TrbAAg@mail.gmail.com> <AANLkTim2opLRkQ_3xLUFevPZAxoy6YptJ5B5KJuTxpEc@mail.gmail.com> <AANLkTi=FQOY711XpBL0wqqZM+aD80Ed0yPPvLEBjU=rf@mail.gmail.com> <AANLkTinvExuzuuLO5yqjT2iPJ8ims8Lxs8S2QWCC7HE2@mail.gmail.com> <AANLkTik+beFdZZHLyei044q8EPHwvmiKoFAvAHsNuhmw@mail.gmail.com>
From: Hui Zhu <teawater@gmail.com>
Date: Wed, 23 Feb 2011 05:20:00 -0000
Message-ID: <AANLkTimJL0_sn1ZqJTbEmXtTN3sM+aNDasMrh7L=7GPz@mail.gmail.com>
Subject: Re: [PATCH] Built kernel without -O2 option
To: Kevin Pouget <kevin.pouget@gmail.com>
Cc: linux-kernel@vger.kernel.org, =?ISO-8859-1?Q?Petr_Hluz=EDn?= <petr.hluzin@gmail.com>, 	gdb@sourceware.org, hellogcc@freelists.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
X-IsSubscribed: yes
Mailing-List: contact gdb-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb.sourceware.org>
List-Subscribe: <mailto:gdb-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-owner@sourceware.org
X-SW-Source: 2011-02/txt/msg00130.txt.bz2

That is cool!  Thanks for your help Kevin.

Best,
Hui

On Mon, Feb 21, 2011 at 20:47, Kevin Pouget <kevin.pouget@gmail.com> wrote:
> Hello,
>
>> Kevin, I am not sure you have try the patch with ARM
>
> I've been using the "unoptimized" kernel since you published the ARM patc=
h,
> and although I can't say the kernel was heavily stressed, everything has
> been working correctly so far, and GDB navigation is more convenient
>
> Thanks,
>
> Kevin
>
> On Thu, Feb 17, 2011 at 3:43 AM, Hui Zhu <teawater@gmail.com> wrote:
>>
>> https://lkml.org/lkml/2010/11/28/211
>> https://lkml.org/lkml/2011/1/24/24
>> https://lkml.org/lkml/2011/1/27/410
>>
>> Hi,
>>
>> According to the comments from Petr, I make a new version that change
>> the options name to "Compile with almost no optimization".
>> Thanks for your help, Petr.
>>
>> Kevin, I am not sure you have try the patch with ARM, I got thread
>> stack overflow in a ARM board. =A0I try to increase the THREAD_SIZE like
>> what I do in x86. =A0But after I try change THREAD_SIZE_ORDER of arm to
>> 2 and update the code in entry-header.S.
>> But I got another crash. =A0Wish somebody can help me with that part.
>>
>> Thanks,
>> Hui
>>
>> Signed-off-by: Hui Zhu <teawater@gmail.com>
>> ---
>> =A0Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0| =A0 =A02 ++
>> =A0arch/arm/include/asm/tlbflush.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0=
 =A04 ++++
>> =A0arch/arm/mm/dma-mapping.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 | =A0 =A02 ++
>> =A0arch/arm/mm/flush.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 | =A0 =A02 ++
>> =A0arch/x86/crypto/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0| =A0 =A06 ++++++
>> =A0arch/x86/include/asm/page_64_types.h =A0 =A0 =A0 =A0 =A0 =A0| =A0 =A0=
4 ++++
>> =A0arch/x86/include/asm/uaccess_32.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =
=A04 ++++
>> =A0arch/x86/kernel/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0| =A0 =A09 +++++++++
>> =A0arch/x86/kvm/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 | =A0 =A06 ++++++
>> =A0arch/x86/lib/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 | =A0 =A04 ++++
>> =A0arch/x86/power/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 | =A0 =A04 ++++
>> =A0crypto/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 | =A0 =A04 ++++
>> =A0drivers/char/mwave/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 |=
 =A0 =A04 ++++
>> =A0drivers/gpu/drm/i915/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =
=A0 =A04 ++++
>> =A0drivers/gpu/drm/i915/i915_drv.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0=
 =A04 ++++
>> =A0drivers/gpu/drm/nouveau/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0=
 =A04 ++++
>> =A0drivers/gpu/drm/radeon/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0=
 =A04 ++++
>> =A0drivers/infiniband/hw/qib/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0 =
=A04 ++++
>> =A0drivers/net/can/sja1000/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| =A0=
 =A04 ++++
>> =A0drivers/staging/comedi/drivers/Makefile =A0 =A0 =A0 =A0 | =A0 =A04 ++=
++
>> =A0drivers/staging/et131x/et1310_address_map.h =A0 =A0 | =A0 =A08 ++++++=
++
>> =A0drivers/staging/rtl8187se/ieee80211/ieee80211.h | =A0 =A08 ++++++++
>> =A0drivers/staging/wlags49_h2/wl_internal.h =A0 =A0 =A0 =A0| =A0 =A09 ++=
++++++-
>> =A0drivers/usb/gadget/f_loopback.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0=
 =A02 ++
>> =A0drivers/usb/gadget/f_sourcesink.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =
=A02 ++
>> =A0drivers/usb/gadget/g_zero.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 |=
 =A0 =A02 ++
>> =A0drivers/usb/host/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 | =A0 =A04 ++++
>> =A0fs/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 | =A0 =A05 +++++
>> =A0include/asm-generic/cmpxchg-local.h =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =A0=
4 ++++
>> =A0include/linux/pagemap.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 | =A0 =A02 ++
>> =A0init/Kconfig =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0| =A0 =A01 +
>> =A0kernel/kfifo.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0| =A0 =A03 +++
>> =A0kernel/sched_autogroup.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0| =A0 =A04 ++++
>> =A0kernel/sched_autogroup.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0| =A0 =A04 ++++
>> =A0lib/Kconfig.debug =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 | =A0 10 ++++++++++
>> =A0lib/raid6/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0| =A0 =A06 ++++++
>> =A0mm/Makefile =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 | =A0 =A06 ++++++
>> =A0mm/memory.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 | =A0 =A06 ++++++
>> =A0mm/mincore.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0| =A0 =A02 ++
>> =A0mm/percpu.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 | =A0 =A04 ++++
>> =A0mm/rmap.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 | =A0 =A02 ++
>> =A0net/mac80211/cfg.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0| =A0 =A02 ++
>> =A0net/mac80211/iface.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0| =A0 =A08 ++++++++
>> =A0net/mac80211/mesh.h =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 | =A0 =A02 ++
>> =A0net/mac80211/rx.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 | =A0 =A08 ++++++++
>> =A0net/mac80211/sta_info.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 | =A0 =A02 ++
>> =A0net/mac80211/status.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 | =A0 =A02 ++
>> =A0net/mac80211/tx.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 | =A0 =A04 ++++
>> =A0net/netfilter/nf_conntrack_pptp.c =A0 =A0 =A0 =A0 =A0 =A0 =A0 | =A0 =
=A03 ++-
>> =A049 files changed, 206 insertions(+), 2 deletions(-)
>>
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -541,8 +541,10 @@ all: vmlinux
>> =A0ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
>> =A0KBUILD_CFLAGS =A0+=3D -Os
>> =A0else
>> +ifndef CONFIG_CC_NO_OPTIMIZATION
>> =A0KBUILD_CFLAGS =A0+=3D -O2
>> =A0endif
>> +endif
>>
>> =A0include $(srctree)/arch/$(SRCARCH)/Makefile
>>
>> --- a/arch/arm/include/asm/tlbflush.h
>> +++ b/arch/arm/include/asm/tlbflush.h
>> @@ -250,7 +250,11 @@ extern void __cpu_flush_kern_tlb_range(u
>>
>> =A0extern struct cpu_tlb_fns cpu_tlb;
>>
>> +#ifdef MULTI_TLB
>> =A0#define __cpu_tlb_flags =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0cpu_tlb.tlb_flags
>> +#else
>> +#define __cpu_tlb_flags =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A00
>> +#endif
>>
>> =A0/*
>> =A0* =A0 =A0 TLB Management
>> --- a/arch/arm/mm/dma-mapping.c
>> +++ b/arch/arm/mm/dma-mapping.c
>> @@ -468,6 +468,7 @@ static void dma_cache_maint_page(struct
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0void *vaddr;
>>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (PageHighMem(page)) {
>> +#ifdef CONFIG_HIGHMEM
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (len + offset > PAGE_S=
IZE) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (offse=
t >=3D PAGE_SIZE) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0page +=3D offset / PAGE_SIZE;
>> @@ -486,6 +487,7 @@ static void dma_cache_maint_page(struct
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0op(vaddr =
+ offset, len, dir);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0kunmap_at=
omic(vaddr);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0} else {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0vaddr =3D page_address(pa=
ge) + offset;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0op(vaddr, len, dir);
>> --- a/arch/arm/mm/flush.c
>> +++ b/arch/arm/mm/flush.c
>> @@ -175,6 +175,7 @@ void __flush_dcache_page(struct address_
>> =A0 =A0 =A0 =A0if (!PageHighMem(page)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0__cpuc_flush_dcache_area(page_address(pag=
e), PAGE_SIZE);
>> =A0 =A0 =A0 =A0} else {
>> +#ifdef CONFIG_HIGHMEM
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0void *addr =3D kmap_high_get(page);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (addr) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0__cpuc_flush_dcache_area(=
addr, PAGE_SIZE);
>> @@ -185,6 +186,7 @@ void __flush_dcache_page(struct address_
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0__cpuc_flush_dcache_area(=
addr, PAGE_SIZE);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0kunmap_atomic(addr);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> +#endif
>> =A0 =A0 =A0 =A0}
>>
>> =A0 =A0 =A0 =A0/*
>> --- a/arch/x86/crypto/Makefile
>> +++ b/arch/x86/crypto/Makefile
>> @@ -2,6 +2,12 @@
>> =A0# Arch-specific CryptoAPI modules.
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_fpu.o =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 +=3D -=
O2
>> +CFLAGS_aesni-intel_glue.o =A0 =A0 =A0 =A0 =A0 =A0 =A0+=3D -O2
>> +CFLAGS_ghash-clmulni-intel_glue.o =A0 =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0obj-$(CONFIG_CRYPTO_FPU) +=3D fpu.o
>>
>> =A0obj-$(CONFIG_CRYPTO_AES_586) +=3D aes-i586.o
>> --- a/arch/x86/include/asm/page_64_types.h
>> +++ b/arch/x86/include/asm/page_64_types.h
>> @@ -1,7 +1,11 @@
>> =A0#ifndef _ASM_X86_PAGE_64_DEFS_H
>> =A0#define _ASM_X86_PAGE_64_DEFS_H
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +#define THREAD_ORDER =A0 2
>> +#else
>> =A0#define THREAD_ORDER =A0 1
>> +#endif
>> =A0#define THREAD_SIZE =A0(PAGE_SIZE << THREAD_ORDER)
>> =A0#define CURRENT_MASK (~(THREAD_SIZE - 1))
>>
>> --- a/arch/x86/include/asm/uaccess_32.h
>> +++ b/arch/x86/include/asm/uaccess_32.h
>> @@ -209,7 +209,11 @@ static inline unsigned long __must_check
>> =A0 =A0 =A0 =A0if (likely(sz =3D=3D -1 || sz >=3D n))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0n =3D _copy_from_user(to, from, n);
>> =A0 =A0 =A0 =A0else
>> +#ifndef CONFIG_CC_NO_OPTIMIZATION
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0copy_from_user_overflow();
>> +#else
>> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 n =3D -EFAULT;
>> +#endif
>>
>> =A0 =A0 =A0 =A0return n;
>> =A0}
>> --- a/arch/x86/kernel/Makefile
>> +++ b/arch/x86/kernel/Makefile
>> @@ -31,6 +31,15 @@ GCOV_PROFILE_hpet.o =A0 =A0 =A0 =A0 =A0:=3D n
>> =A0GCOV_PROFILE_tsc.o =A0 =A0 =A0 =A0 =A0 =A0 :=3D n
>> =A0GCOV_PROFILE_paravirt.o =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0:=3D n
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_process_$(BITS).o =A0 =A0 =A0 +=3D -O2
>> +CFLAGS_entry_$(BITS).o =A0 =A0 =A0 =A0 +=3D -O2
>> +CFLAGS_traps.o =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 +=3D -O2
>> +CFLAGS_i387.o =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0+=3D -O2
>> +CFLAGS_xsave.o =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 +=3D -O2
>> +CFLAGS_hpet.o =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0obj-y =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0:=3D process_$(BITS).o signa=
l.o entry_$(BITS).o
>> =A0obj-y =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0+=3D traps.o irq.o irq_$(BIT=
S).o dumpstack_$(BITS).o
>> =A0obj-y =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0+=3D time.o ioport.o ldt.o d=
umpstack.o
>> --- a/arch/x86/kvm/Makefile
>> +++ b/arch/x86/kvm/Makefile
>> @@ -5,6 +5,12 @@ CFLAGS_x86.o :=3D -I.
>> =A0CFLAGS_svm.o :=3D -I.
>> =A0CFLAGS_vmx.o :=3D -I.
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_x86.o =A0 =A0 =A0 =A0 =A0 +=3D -O2
>> +CFLAGS_emulate.o =A0 =A0 =A0 +=3D -O2
>> +CFLAGS_svm.o =A0 =A0 =A0 =A0 =A0 +=3D -O2
>> +endif
>> +
>> =A0kvm-y =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0+=3D $(addprefix ../../../vi=
rt/kvm/, kvm_main.o
>> ioapic.o \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0coalesced=
_mmio.o irq_comm.o eventfd.o \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0assigned-=
dev.o)
>> --- a/arch/x86/lib/Makefile
>> +++ b/arch/x86/lib/Makefile
>> @@ -2,6 +2,10 @@
>> =A0# Makefile for x86 specific library files.
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_memmove_64.o =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0inat_tables_script =3D $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk
>> =A0inat_tables_maps =3D $(srctree)/arch/x86/lib/x86-opcode-map.txt
>> =A0quiet_cmd_inat_tables =3D GEN =A0 =A0 $@
>> --- a/arch/x86/power/Makefile
>> +++ b/arch/x86/power/Makefile
>> @@ -3,5 +3,9 @@
>> =A0nostackp :=3D $(call cc-option, -fno-stack-protector)
>> =A0CFLAGS_cpu.o =A0 :=3D $(nostackp)
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_cpu.o =A0 +=3D -O2
>> +endif
>> +
>> =A0obj-$(CONFIG_PM_SLEEP) =A0 =A0 =A0 =A0 +=3D cpu.o
>> =A0obj-$(CONFIG_HIBERNATION) =A0 =A0 =A0+=3D hibernate_$(BITS).o
>> hibernate_asm_$(BITS).o
>> --- a/crypto/Makefile
>> +++ b/crypto/Makefile
>> @@ -2,6 +2,10 @@
>> =A0# Cryptographic API
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_xor.o =A0 +=3D -O2
>> +endif
>> +
>> =A0obj-$(CONFIG_CRYPTO) +=3D crypto.o
>> =A0crypto-y :=3D api.o cipher.o compress.o
>>
>> --- a/drivers/char/mwave/Makefile
>> +++ b/drivers/char/mwave/Makefile
>> @@ -4,6 +4,10 @@
>> =A0# See the README file in this directory for more info.
>> <paulsch@us.ibm.com>
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_smapi.o +=3D -O2
>> +endif
>> +
>> =A0obj-$(CONFIG_MWAVE) +=3D mwave.o
>>
>> =A0mwave-y :=3D mwavedd.o smapi.o tp3780i.o 3780i.o
>> --- a/drivers/gpu/drm/i915/Makefile
>> +++ b/drivers/gpu/drm/i915/Makefile
>> @@ -2,6 +2,10 @@
>> =A0# Makefile for the drm device driver. =A0This driver provides support=
 for
>> the
>> =A0# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_i915_gem.o =A0 =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0ccflags-y :=3D -Iinclude/drm
>> =A0i915-y :=3D i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
>> =A0 =A0 =A0 =A0 =A0i915_debugfs.o \
>> --- a/drivers/gpu/drm/i915/i915_drv.h
>> +++ b/drivers/gpu/drm/i915/i915_drv.h
>> @@ -1225,7 +1225,11 @@ extern int intel_setup_gmbus(struct drm_
>> =A0extern void intel_teardown_gmbus(struct drm_device *dev);
>> =A0extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int
>> speed);
>> =A0extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool
>> force_bit);
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapte=
r)
>> +#else
>> =A0extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adap=
ter)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0return container_of(adapter, struct intel_gmbus,
>> adapter)->force_bit;
>> =A0}
>> --- a/drivers/gpu/drm/nouveau/Makefile
>> +++ b/drivers/gpu/drm/nouveau/Makefile
>> @@ -2,6 +2,10 @@
>> =A0# Makefile for the drm device driver. =A0This driver provides support=
 for
>> the
>> =A0# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_nv50_instmem.o =A0+=3D -O2
>> +endif
>> +
>> =A0ccflags-y :=3D -Iinclude/drm
>> =A0nouveau-y :=3D nouveau_drv.o nouveau_state.o nouveau_channel.o
>> nouveau_mem.o \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0nouveau_object.o nouveau_irq.o nouveau_notifi=
er.o \
>> --- a/drivers/gpu/drm/radeon/Makefile
>> +++ b/drivers/gpu/drm/radeon/Makefile
>> @@ -2,6 +2,10 @@
>> =A0# Makefile for the drm device driver. =A0This driver provides support=
 for
>> the
>> =A0# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_radeon_gem.o =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0ccflags-y :=3D -Iinclude/drm
>>
>> =A0hostprogs-y :=3D mkregtable
>> --- a/drivers/infiniband/hw/qib/Makefile
>> +++ b/drivers/infiniband/hw/qib/Makefile
>> @@ -1,5 +1,9 @@
>> =A0obj-$(CONFIG_INFINIBAND_QIB) +=3D ib_qib.o
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_qib_iba7322.o =A0 +=3D -O2
>> +endif
>> +
>> =A0ib_qib-y :=3D qib_cq.o qib_diag.o qib_dma.o qib_driver.o qib_eeprom.o=
 \
>> =A0 =A0 =A0 =A0qib_file_ops.o qib_fs.o qib_init.o qib_intr.o qib_keys.o \
>> =A0 =A0 =A0 =A0qib_mad.o qib_mmap.o qib_mr.o qib_pcie.o qib_pio_copy.o \
>> --- a/drivers/net/can/sja1000/Makefile
>> +++ b/drivers/net/can/sja1000/Makefile
>> @@ -2,6 +2,10 @@
>> =A0# =A0Makefile for the SJA1000 CAN controller drivers.
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_kvaser_pci.o =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0obj-$(CONFIG_CAN_SJA1000) +=3D sja1000.o
>> =A0obj-$(CONFIG_CAN_SJA1000_ISA) +=3D sja1000_isa.o
>> =A0obj-$(CONFIG_CAN_SJA1000_PLATFORM) +=3D sja1000_platform.o
>> --- a/drivers/staging/comedi/drivers/Makefile
>> +++ b/drivers/staging/comedi/drivers/Makefile
>> @@ -1,6 +1,10 @@
>> =A0# Makefile for individual comedi drivers
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_cb_pcidas64.o =A0 +=3D -O2
>> +endif
>> +
>> =A0# Comedi "helper" modules
>> =A0obj-$(CONFIG_COMEDI) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 +=3D pcm_com=
mon.o
>>
>> --- a/drivers/staging/et131x/et1310_address_map.h
>> +++ b/drivers/staging/et131x/et1310_address_map.h
>> @@ -212,12 +212,20 @@ struct global_regs { =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0/*
>> Location: */
>> =A0#define INDEX10(x) =A0 =A0 ((x) & ET_DMA10_MASK)
>> =A0#define INDEX4(x) =A0 =A0 =A0((x) & ET_DMA4_MASK)
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline void add_10bit(u32 *v, int n)
>> +#else
>> =A0extern inline void add_10bit(u32 *v, int n)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0*v =3D INDEX10(*v + n) | (*v & ET_DMA10_WRAP);
>> =A0}
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline void add_12bit(u32 *v, int n)
>> +#else
>> =A0extern inline void add_12bit(u32 *v, int n)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0*v =3D INDEX12(*v + n) | (*v & ET_DMA12_WRAP);
>> =A0}
>> --- a/drivers/staging/rtl8187se/ieee80211/ieee80211.h
>> +++ b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
>> @@ -1221,7 +1221,11 @@ static inline void *ieee80211_priv(struc
>> =A0 =A0 =A0 =A0return ((struct ieee80211_device *)netdev_priv(dev))->pri=
v;
>> =A0}
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline int ieee80211_is_empty_essid(const char *essid, int
>> essid_len)
>> +#else
>> =A0extern inline int ieee80211_is_empty_essid(const char *essid, int
>> essid_len)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0/* Single white space is for Linksys APs */
>> =A0 =A0 =A0 =A0if (essid_len =3D=3D 1 && essid[0] =3D=3D ' ')
>> @@ -1263,7 +1267,11 @@ extern inline int ieee80211_is_valid_mod
>> =A0 =A0 =A0 =A0return 0;
>> =A0}
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline int ieee80211_get_hdrlen(u16 fc)
>> +#else
>> =A0extern inline int ieee80211_get_hdrlen(u16 fc)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0int hdrlen =3D 24;
>>
>> --- a/drivers/staging/wlags49_h2/wl_internal.h
>> +++ b/drivers/staging/wlags49_h2/wl_internal.h
>> @@ -1022,8 +1022,11 @@ static inline void wl_unlock(struct wl_p
>> =A0/********************************************************************/
>> =A0/* Interrupt enable disable functions =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 */
>> =A0/********************************************************************/
>> -
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline void wl_act_int_on(struct wl_private *lp)
>> +#else
>> =A0extern inline void wl_act_int_on(struct wl_private *lp)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0/*
>> =A0 =A0 =A0 =A0 * Only do something when the driver is handling
>> @@ -1035,7 +1038,11 @@ extern inline void wl_act_int_on(struct
>> =A0 =A0 =A0 =A0}
>> =A0}
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +static inline void wl_act_int_off(struct wl_private *lp)
>> +#else
>> =A0extern inline void wl_act_int_off(struct wl_private *lp)
>> +#endif
>> =A0{
>> =A0 =A0 =A0 =A0/*
>> =A0 =A0 =A0 =A0 * Only do something when the driver is handling
>> --- a/drivers/usb/gadget/f_loopback.c
>> +++ b/drivers/usb/gadget/f_loopback.c
>> @@ -376,10 +376,12 @@ int __init loopback_add(struct usb_compo
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0sourcesink_driver.bmAttributes |=3D USB_C=
ONFIG_ATT_WAKEUP;
>>
>> =A0 =A0 =A0 =A0/* support OTG systems */
>> +#ifdef CONFIG_USB_OTG
>> =A0 =A0 =A0 =A0if (gadget_is_otg(cdev->gadget)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0loopback_driver.descriptors =3D otg_desc;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0loopback_driver.bmAttributes |=3D USB_CON=
FIG_ATT_WAKEUP;
>> =A0 =A0 =A0 =A0}
>> +#endif
>>
>> =A0 =A0 =A0 =A0return usb_add_config(cdev, &loopback_driver,
>> loopback_bind_config);
>> =A0}
>> --- a/drivers/usb/gadget/f_sourcesink.c
>> +++ b/drivers/usb/gadget/f_sourcesink.c
>> @@ -526,10 +526,12 @@ int __init sourcesink_add(struct usb_com
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0sourcesink_driver.bmAttributes |=3D USB_C=
ONFIG_ATT_WAKEUP;
>>
>> =A0 =A0 =A0 =A0/* support OTG systems */
>> +#ifdef CONFIG_USB_OTG
>> =A0 =A0 =A0 =A0if (gadget_is_otg(cdev->gadget)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0sourcesink_driver.descriptors =3D otg_des=
c;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0sourcesink_driver.bmAttributes |=3D USB_C=
ONFIG_ATT_WAKEUP;
>> =A0 =A0 =A0 =A0}
>> +#endif
>>
>> =A0 =A0 =A0 =A0return usb_add_config(cdev, &sourcesink_driver,
>> sourcesink_bind_config);
>> =A0}
>> --- a/drivers/usb/gadget/g_zero.h
>> +++ b/drivers/usb/gadget/g_zero.h
>> @@ -10,7 +10,9 @@
>>
>> =A0/* global state */
>> =A0extern unsigned buflen;
>> +#ifdef CONFIG_USB_OTG
>> =A0extern const struct usb_descriptor_header *otg_desc[];
>> +#endif
>>
>> =A0/* common utilities */
>> =A0struct usb_request *alloc_ep_req(struct usb_ep *ep);
>> --- a/drivers/usb/host/Makefile
>> +++ b/drivers/usb/host/Makefile
>> @@ -4,6 +4,10 @@
>>
>> =A0ccflags-$(CONFIG_USB_DEBUG) :=3D -DDEBUG
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_ehci-hcd.o =A0 =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0isp1760-y :=3D isp1760-hcd.o isp1760-if.o
>>
>> =A0fhci-y :=3D fhci-hcd.o fhci-hub.o fhci-q.o
>> --- a/fs/Makefile
>> +++ b/fs/Makefile
>> @@ -13,6 +13,11 @@ obj-y :=3D =A0 =A0 open.o read_write.o file_table.
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0pnode.o drop_caches.o splice.o sync.o uti=
mes.o \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0stack.o fs_struct.o statfs.o
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_compat_ioctl.o =A0+=3D -O2
>> +CFLAGS_binfmt_elf.o =A0 =A0+=3D -O2
>> +endif
>> +
>> =A0ifeq ($(CONFIG_BLOCK),y)
>> =A0obj-y +=3D =A0 =A0 =A0 buffer.o bio.o block_dev.o direct-io.o mpage.o=
 ioprio.o
>> =A0else
>> --- a/include/asm-generic/cmpxchg-local.h
>> +++ b/include/asm-generic/cmpxchg-local.h
>> @@ -18,8 +18,10 @@ static inline unsigned long __cmpxchg_lo
>> =A0 =A0 =A0 =A0/*
>> =A0 =A0 =A0 =A0 * Sanity checking, compile-time.
>> =A0 =A0 =A0 =A0 */
>> +#if !(defined(CONFIG_CC_NO_OPTIMIZATION) && defined(CONFIG_ARM))
>> =A0 =A0 =A0 =A0if (size =3D=3D 8 && sizeof(unsigned long) !=3D 8)
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0wrong_size_cmpxchg(ptr);
>> +#endif
>>
>> =A0 =A0 =A0 =A0local_irq_save(flags);
>> =A0 =A0 =A0 =A0switch (size) {
>> @@ -39,8 +41,10 @@ static inline unsigned long __cmpxchg_lo
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (prev =3D=3D old)
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*(u64 *)ptr =3D (u64)new;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> +#if !(defined(CONFIG_CC_NO_OPTIMIZATION) && defined(CONFIG_ARM))
>> =A0 =A0 =A0 =A0default:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0wrong_size_cmpxchg(ptr);
>> +#endif
>> =A0 =A0 =A0 =A0}
>> =A0 =A0 =A0 =A0local_irq_restore(flags);
>> =A0 =A0 =A0 =A0return prev;
>> --- a/include/linux/pagemap.h
>> +++ b/include/linux/pagemap.h
>> @@ -289,8 +289,10 @@ static inline pgoff_t linear_page_index(
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0unsigned long address)
>> =A0{
>> =A0 =A0 =A0 =A0pgoff_t pgoff;
>> +#ifdef CONFIG_HUGETLBFS
>> =A0 =A0 =A0 =A0if (unlikely(is_vm_hugetlb_page(vma)))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return linear_hugepage_index(vma, address=
);
>> +#endif
>> =A0 =A0 =A0 =A0pgoff =3D (address - vma->vm_start) >> PAGE_SHIFT;
>> =A0 =A0 =A0 =A0pgoff +=3D vma->vm_pgoff;
>> =A0 =A0 =A0 =A0return pgoff >> (PAGE_CACHE_SHIFT - PAGE_SHIFT);
>> --- a/init/Kconfig
>> +++ b/init/Kconfig
>> @@ -886,6 +886,7 @@ endif
>>
>> =A0config CC_OPTIMIZE_FOR_SIZE
>> =A0 =A0 =A0 =A0bool "Optimize for size"
>> + =A0 =A0 =A0 depends on !CC_NO_OPTIMIZATION
>> =A0 =A0 =A0 =A0default y
>> =A0 =A0 =A0 =A0help
>> =A0 =A0 =A0 =A0 =A0Enabling this option will pass "-Os" instead of "-O2"=
 to gcc
>> --- a/kernel/kfifo.c
>> +++ b/kernel/kfifo.c
>> @@ -402,6 +402,9 @@ unsigned int __kfifo_max_r(unsigned int
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return max;
>> =A0 =A0 =A0 =A0return len;
>> =A0}
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +EXPORT_SYMBOL(__kfifo_max_r);
>> +#endif
>>
>> =A0#define =A0 =A0 =A0 =A0__KFIFO_PEEK(data, out, mask) \
>> =A0 =A0 =A0 =A0((data)[(out) & (mask)])
>> --- a/kernel/sched_autogroup.c
>> +++ b/kernel/sched_autogroup.c
>> @@ -133,7 +133,11 @@ static inline bool task_group_is_autogro
>> =A0 =A0 =A0 =A0return tg !=3D &root_task_group && tg->autogroup;
>> =A0}
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +struct task_group *
>> +#else
>> =A0static inline struct task_group *
>> +#endif
>> =A0autogroup_task_group(struct task_struct *p, struct task_group *tg)
>> =A0{
>> =A0 =A0 =A0 =A0int enabled =3D ACCESS_ONCE(sysctl_sched_autogroup_enable=
d);
>> --- a/kernel/sched_autogroup.h
>> +++ b/kernel/sched_autogroup.h
>> @@ -8,7 +8,11 @@ struct autogroup {
>> =A0 =A0 =A0 =A0int =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 nice;
>> =A0};
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> +extern struct task_group *
>> +#else
>> =A0static inline struct task_group *
>> +#endif
>> =A0autogroup_task_group(struct task_struct *p, struct task_group *tg);
>>
>> =A0#else /* !CONFIG_SCHED_AUTOGROUP */
>> --- a/lib/Kconfig.debug
>> +++ b/lib/Kconfig.debug
>> @@ -136,6 +136,16 @@ config DEBUG_SECTION_MISMATCH
>> =A0 =A0 =A0 =A0 =A0- Enable verbose reporting from modpost to help solvi=
ng
>> =A0 =A0 =A0 =A0 =A0 =A0the section mismatches reported.
>>
>> +config CC_NO_OPTIMIZATION
>> + =A0 =A0 =A0 bool "Compile with almost no optimization"
>> + =A0 =A0 =A0 default n
>> + =A0 =A0 =A0 help
>> + =A0 =A0 =A0 =A0 Enabling this option will let gcc build kernel with no
>> + =A0 =A0 =A0 =A0 optimization (where possible).
>> + =A0 =A0 =A0 =A0 This makes debugging friendlier.
>> +
>> + =A0 =A0 =A0 =A0 If unsure, say N.
>> +
>> =A0config DEBUG_KERNEL
>> =A0 =A0 =A0 =A0bool "Kernel debugging"
>> =A0 =A0 =A0 =A0help
>> --- a/lib/raid6/Makefile
>> +++ b/lib/raid6/Makefile
>> @@ -1,3 +1,9 @@
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_mmx.o =A0 +=3D -O2
>> +CFLAGS_sse1.o =A0+=3D -O2
>> +CFLAGS_sse2.o =A0+=3D -O2
>> +endif
>> +
>> =A0obj-$(CONFIG_RAID6_PQ) +=3D raid6_pq.o
>>
>> =A0raid6_pq-y =A0 =A0 +=3D algos.o recov.o tables.o int1.o int2.o int4.o=
 \
>> --- a/mm/Makefile
>> +++ b/mm/Makefile
>> @@ -2,6 +2,12 @@
>> =A0# Makefile for the linux memory manager.
>> =A0#
>>
>> +ifdef CONFIG_CC_NO_OPTIMIZATION
>> +CFLAGS_slob.o =A0+=3D -O2
>> +CFLAGS_slab.o =A0+=3D -O2
>> +CFLAGS_slub.o =A0+=3D -O2
>> +endif
>> +
>> =A0mmu-y =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0:=3D nommu.o
>> =A0mmu-$(CONFIG_MMU) =A0 =A0 =A0:=3D fremap.o highmem.o madvise.o memory=
.o mincore.o
>> \
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 mlock.o mmap.o mprot=
ect.o mremap.o msync.o
>> rmap.o \
>> --- a/mm/memory.c
>> +++ b/mm/memory.c
>> @@ -1317,8 +1317,10 @@ struct page *follow_page(struct vm_area_
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0spin_unlo=
ck(&mm->page_table_lock);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0wait_spli=
t_huge_page(vma->anon_vma, pmd);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0} else {
>> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0page =3D =
follow_trans_huge_pmd(mm, address,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 pmd, flags);
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0spin_unlo=
ck(&mm->page_table_lock);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> @@ -2773,7 +2775,9 @@ static int do_swap_page(struct mm_struct
>>
>> =A0 =A0 =A0 =A0if (ksm_might_need_to_copy(page, vma, address)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0swapcache =3D page;
>> +#ifdef CONFIG_KSM
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0page =3D ksm_does_need_to_copy(page, vma,=
 address);
>> +#endif
>>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (unlikely(!page)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ret =3D VM_FAULT_OOM;
>> @@ -3306,11 +3310,13 @@ int handle_mm_fault(struct mm_struct *mm
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0pmd_t orig_pmd =3D *pmd;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0barrier();
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (pmd_trans_huge(orig_pmd)) {
>> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (flags & FAULT_FLAG_WR=
ITE &&
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0!pmd_write(orig_p=
md) &&
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0!pmd_trans_splitt=
ing(orig_pmd))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return do=
_huge_pmd_wp_page(mm, vma,
>> address,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 pmd, orig_pmd);
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return 0;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> =A0 =A0 =A0 =A0}
>> --- a/mm/mincore.c
>> +++ b/mm/mincore.c
>> @@ -155,10 +155,12 @@ static void mincore_pmd_range(struct vm_
>> =A0 =A0 =A0 =A0do {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0next =3D pmd_addr_end(addr, end);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (pmd_trans_huge(*pmd)) {
>> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (mincore_huge_pmd(vma,=
 pmd, addr, next, vec)) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0vec +=3D =
(next - addr) >> PAGE_SHIFT;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0continue;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0/* fall through */
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (pmd_none_or_clear_bad(pmd))
>> --- a/mm/percpu.c
>> +++ b/mm/percpu.c
>> @@ -1886,7 +1886,11 @@ void __init percpu_init_late(void)
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0int *map;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0const size_t size =3D PERCPU_DYNAMIC_EARL=
Y_SLOTS *
>> sizeof(map[0]);
>>
>> +#ifdef CONFIG_CC_NO_OPTIMIZATION
>> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 BUG_ON(size > PAGE_SIZE);
>> +#else
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0BUILD_BUG_ON(size > PAGE_SIZE);
>> +#endif
>>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0map =3D pcpu_mem_alloc(size);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0BUG_ON(!map);
>> --- a/mm/rmap.c
>> +++ b/mm/rmap.c
>> @@ -515,6 +515,7 @@ int page_referenced_one(struct page *pag
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0referenced++;
>>
>> =A0 =A0 =A0 =A0if (unlikely(PageTransHuge(page))) {
>> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0pmd_t *pmd;
>>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0spin_lock(&mm->page_table_lock);
>> @@ -524,6 +525,7 @@ int page_referenced_one(struct page *pag
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0pmdp_clear_flush_young_notify(vma=
, address, pmd))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0referenced++;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0spin_unlock(&mm->page_table_lock);
>> +#endif
>> =A0 =A0 =A0 =A0} else {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0pte_t *pte;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0spinlock_t *ptl;
>> --- a/net/mac80211/cfg.c
>> +++ b/net/mac80211/cfg.c
>> @@ -699,6 +699,7 @@ static void sta_apply_parameters(struct
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0params->ht_capa,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0&sta->sta.ht_cap);
>>
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_a=
ction) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0switch (params->plink_action) {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0case PLINK_ACTION_OPEN:
>> @@ -709,6 +710,7 @@ static void sta_apply_parameters(struct
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> =A0 =A0 =A0 =A0}
>> +#endif
>> =A0}
>>
>> =A0static int ieee80211_add_station(struct wiphy *wiphy, struct net_devi=
ce
>> *dev,
>> --- a/net/mac80211/iface.c
>> +++ b/net/mac80211/iface.c
>> @@ -620,8 +620,10 @@ static void ieee80211_teardown_sdata(str
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0__skb_queue_purge(&sdata->fragments[i].sk=
b_list);
>> =A0 =A0 =A0 =A0sdata->fragment_next =3D 0;
>>
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0if (ieee80211_vif_is_mesh(&sdata->vif))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0mesh_rmc_free(sdata);
>> +#endif
>>
>> =A0 =A0 =A0 =A0flushed =3D sta_info_flush(local, sdata);
>> =A0 =A0 =A0 =A0WARN_ON(flushed);
>> @@ -797,7 +799,9 @@ static void ieee80211_iface_work(struct
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0case NL80211_IFTYPE_MESH_POINT:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (!ieee80211_vif_is_mes=
h(&sdata->vif))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ieee80211_mesh_rx_queued_=
mgmt(sdata, skb);
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0default:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0WARN(1, "frame for unexpe=
cted interface type");
>> @@ -818,7 +822,9 @@ static void ieee80211_iface_work(struct
>> =A0 =A0 =A0 =A0case NL80211_IFTYPE_MESH_POINT:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (!ieee80211_vif_is_mesh(&sdata->vif))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ieee80211_mesh_work(sdata);
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> =A0 =A0 =A0 =A0default:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> @@ -872,8 +878,10 @@ static void ieee80211_setup_sdata(struct
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ieee80211_ibss_setup_sdata(sdata);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> =A0 =A0 =A0 =A0case NL80211_IFTYPE_MESH_POINT:
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (ieee80211_vif_is_mesh(&sdata->vif))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ieee80211_mesh_init_sdata=
(sdata);
>> +#endif
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0break;
>> =A0 =A0 =A0 =A0case NL80211_IFTYPE_MONITOR:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0sdata->dev->type =3D ARPHRD_IEEE80211_RAD=
IOTAP;
>> --- a/net/mac80211/mesh.h
>> +++ b/net/mac80211/mesh.h
>> @@ -189,8 +189,10 @@ int ieee80211_fill_mesh_addresses(struct
>> =A0int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0struct ieee80211_sub_if_data *sdata, char=
 *addr4or5,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0char *addr6);
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0struct ieee80211_sub_if_data *sdata);
>> +#endif
>> =A0bool mesh_matches_local(struct ieee802_11_elems *ie,
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0struct ieee80211_sub_if_data *sdata);
>> =A0void mesh_ids_set_default(struct ieee80211_if_mesh *mesh);
>> --- a/net/mac80211/rx.c
>> +++ b/net/mac80211/rx.c
>> @@ -453,6 +453,14 @@ static int ieee80211_get_mmie_keyidx(str
>> =A0}
>>
>>
>> +#ifndef CONFIG_MAC80211_MESH
>> +static int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
>> + =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0struct ieee80211_sub_if_data *sdata)
>> +{
>> + =A0 =A0 =A0 return 0;
>> +}
>> +#endif
>> +
>> =A0static ieee80211_rx_result
>> =A0ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
>> =A0{
>> --- a/net/mac80211/sta_info.c
>> +++ b/net/mac80211/sta_info.c
>> @@ -470,8 +470,10 @@ int sta_info_insert_rcu(struct sta_info
>> =A0 =A0 =A0 =A0rcu_read_lock();
>> =A0 =A0 =A0 =A0mutex_unlock(&local->sta_mtx);
>>
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0if (ieee80211_vif_is_mesh(&sdata->vif))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0mesh_accept_plinks_update(sdata);
>> +#endif
>>
>> =A0 =A0 =A0 =A0return 0;
>> =A0out_free:
>> --- a/net/mac80211/status.c
>> +++ b/net/mac80211/status.c
>> @@ -247,8 +247,10 @@ void ieee80211_tx_status(struct ieee8021
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0rate_control_tx_status(local, sband, sta,=
 skb);
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (ieee80211_vif_is_mesh(&sta->sdata->vi=
f))
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ieee80211s_update_metric(=
local, sta, skb);
>> +#endif
>>
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (!(info->flags & IEEE80211_TX_CTL_INJE=
CTED) && acked)
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0ieee80211_frame_acked(sta=
, skb);
>> --- a/net/mac80211/tx.c
>> +++ b/net/mac80211/tx.c
>> @@ -1638,6 +1638,7 @@ static void ieee80211_xmit(struct ieee80
>> =A0 =A0 =A0 =A0hdr =3D (struct ieee80211_hdr *) skb->data;
>> =A0 =A0 =A0 =A0info->control.vif =3D &sdata->vif;
>>
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0if (ieee80211_vif_is_mesh(&sdata->vif) &&
>> =A0 =A0 =A0 =A0 =A0 =A0ieee80211_is_data(hdr->frame_control) &&
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0!is_multicast_ether_addr(hdr->addr1))
>> @@ -1646,6 +1647,7 @@ static void ieee80211_xmit(struct ieee80
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0rcu_read_=
unlock();
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0}
>> +#endif
>>
>> =A0 =A0 =A0 =A0ieee80211_set_qos_hdr(local, skb);
>> =A0 =A0 =A0 =A0ieee80211_tx(sdata, skb, false);
>> @@ -2325,7 +2327,9 @@ struct sk_buff *ieee80211_beacon_get_tim
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*pos++ =3D WLAN_EID_SSID;
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0*pos++ =3D 0x0;
>>
>> +#ifdef CONFIG_MAC80211_MESH
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0mesh_mgmt_ies_add(skb, sdata);
>> +#endif
>> =A0 =A0 =A0 =A0} else {
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0WARN_ON(1);
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0goto out;
>> --- a/net/netfilter/nf_conntrack_pptp.c
>> +++ b/net/netfilter/nf_conntrack_pptp.c
>> @@ -67,7 +67,8 @@ void
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 struct nf_conntr=
ack_expect *exp)
>> __read_mostly;
>> =A0EXPORT_SYMBOL_GPL(nf_nat_pptp_hook_expectfn);
>>
>> -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
>> +#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) \
>> + =A0 =A0|| defined(CONFIG_CC_NO_OPTIMIZATION)
>> =A0/* PptpControlMessageType names */
>> =A0const char *const pptp_msg_name[] =3D {
>> =A0 =A0 =A0 =A0"UNKNOWN_MESSAGE",
>
>