From: mengqinggang <mengqinggang@loongson.cn>
To: Xi Ruoyao <xry111@xry111.site>, gcc-patches@gcc.gnu.org
Cc: xuchenghua@loongson.cn, chenglulu@loongson.cn,
cailulu@loongson.cn, i.swmail@xen0n.name, maskray@google.com,
luweining@loongson.cn, wanglei@loongson.cn,
hejinyang@loongson.cn
Subject: Re: [PATCH] LoongArch: Add support for TLS descriptors
Date: Fri, 1 Dec 2023 18:13:06 +0800 [thread overview]
Message-ID: <d444eb4d-b7b7-160c-e804-3b094e094285@loongson.cn> (raw)
In-Reply-To: <749f8c5bddf8820a4514a9fe90338d252459caed.camel@xry111.site>
This is mainly for the convenience of testing, and we will consider the
issues you mentioned.
在 2023/12/1 下午6:01, Xi Ruoyao 写道:
> On Fri, 2023-12-01 at 17:55 +0800, mengqinggang wrote:
>> Generate la.tls.desc macro instruction for TLS descriptors model.
>>
>> la.tls.desc expand to
>> pcalau12i $a0, %desc_pc_hi20(a)
>> ld.d $a1, $a0, %desc_ld_pc_lo12(a)
>> addi.d $a0, $a0, %desc_add_pc_lo12(a)
>> jirl $ra, $a1, %desc_call(a)
>>
>> The default is TLS descriptors, but can be configure with
>> -mtls-dialect={desc,trad}.
> No, the default should be trad to be compatible with old Glibc and
> Binutils.
>
> Or you can check the value of --with-glibc-version=M.N and the GAS
> feature when GCC is configured to decide the default.
>
next prev parent reply other threads:[~2023-12-01 10:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-01 9:55 mengqinggang
2023-12-01 10:01 ` Xi Ruoyao
2023-12-01 10:03 ` Xi Ruoyao
2023-12-01 10:13 ` mengqinggang [this message]
2023-12-01 10:24 ` Xi Ruoyao
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