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[84.3.50.134]) by smtp.gmail.com with ESMTPSA id cc9sm809400edb.14.2020.07.24.06.55.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2020 06:55:33 -0700 (PDT) Date: Fri, 24 Jul 2020 15:55:31 +0200 From: Ingo Molnar To: Huaixin Chang , Masahiro Yamada Cc: jpoimboe@redhat.com, bp@alien8.de, hpa@zytor.com, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, luto@amacapital.net, michal.lkml@markovi.net, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, x86@kernel.org, yamada.masahiro@socionext.com Subject: Re: [PATCH 1/3] scripts/sorttable: Change section type of orc_lookup to SHT_PROGBITS Message-ID: <20200724135531.GB648324@gmail.com> References: <20200723034643.33537-1-changhuaixin@linux.alibaba.com> <20200723034643.33537-2-changhuaixin@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200723034643.33537-2-changhuaixin@linux.alibaba.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Huaixin Chang wrote: > In order to edit orc_lookup table via sorttable, type of section > orc_lookup needs to be SHT_PROGBITS instead of SHT_NOBITS. > > Linker script doesn't seem to allow manual specification of the section > type, so just write a byte into the section instead. > > Signed-off-by: Josh Poimboeuf > Signed-off-by: Huaixin Chang > Signed-off-by: Shile Zhang > --- > include/asm-generic/vmlinux.lds.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h > index db600ef218d7..49f4f5bc6165 100644 > --- a/include/asm-generic/vmlinux.lds.h > +++ b/include/asm-generic/vmlinux.lds.h > @@ -826,6 +826,8 @@ > . += (((SIZEOF(.text) + LOOKUP_BLOCK_SIZE - 1) / \ > LOOKUP_BLOCK_SIZE) + 1) * 4; \ > orc_lookup_end = .; \ > + /* HACK: force SHT_PROGBITS so sorttable can edit: */ \ > + BYTE(1); \ Cc:-ing Masahiro Yamada, maybe there's a cleaner solution to this? Thanks, Ingo