musl - 回复: Failed to build musl 1.2.2 by using clang cross compiler

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Date: Mon, 25 Oct 2021 13:26:43 +0000
From: Zhu Chunlin <simon_0214@...mail.com>
To: "musl@...ts.openwall.com" <musl@...ts.openwall.com>
CC: "nullplan@....net" <nullplan@....net>
Subject:
 回复: Failed to build musl 1.2.2 by using clang cross compiler

Hello Jeff,

Thanks! But when I update the config as you suggest:

AR=/usr/local/bin/llvm-ar \
RANLIB=/usr/local/bin/llvm-ranlib \
CC=/usr/local/bin/clang \
CFLAGS="--rtlib=compiler-rt --target=aarch64" \
ASFLAGS="-Wa,--noexecstack" \
LDFLAGS="-Wl,-fuse-ld=/usr/local/bin/ld.lld --rtlib=compiler-rt --target=aarch64" \
LIBCC=-lcompiler_rt \
./configure --target=aarch64 \
&& make

It still reports the error as below:
[cid:919d9698-56e2-49d2-85c5-8b12ac33e65f]

Another question, if I want to use LLVM tool chain instead of GCC, how should I config? Acutally I don't understand why there is gcc error, because I have specify to use clang and ld.lld.

Thanks,
Simon
________________________________
发件人: Jeffrey Walton <noloader@...il.com>
发送时间: 2021年10月25日 16:44
收件人: musl@...ts.openwall.com <musl@...ts.openwall.com>
抄送: nullplan@....net <nullplan@....net>
主题: Re: [musl] Failed to build musl 1.2.2 by using clang cross compiler



On Mon, Oct 25, 2021 at 1:04 AM Zhu Chunlin <simon_0214@...mail.com<mailto:simon_0214@...mail.com>> wrote:
Hello Markus,

Thanks!

AR=/usr/local/bin/llvm-ar \
RANLIB=/usr/local/bin/llvm-ranlib \
CC=/usr/local/bin/clang \
CFLAGS="-fuse-ld=/usr/local/bin/ld.lld --rtlib=compiler-rt --target=aarch64" \
LIBCC=-lcompiler_rt \
./configure --target=aarch64 \
&& make

But when I use the above config, it reports the below error, but I don't understand why there are gcc error, I have explict specify to use clang and ld.lld
[cid:17cb69be492cb971f161]

-fuse-ld=/usr/local/bin/ld.lld is a LDFLAG. Since you are using GCC to drive link, set:

    LDFLAGS = "-Wl,-fuse-ld=/usr/local/bin/ld.lld "
--rtlib=compiler-rt and --target=aarch64may need to go into LDFLAGS, too.

--noexecstack is a ASFLAG. Use:

    ASFLAGS = "-Wa,--noexecstack"

Jeff

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