From: Xi Ruoyao <xry111@xry111.site>
To: liuzhensong <liuzhensong@loongson.cn>, binutils@sourceware.org
Cc: i.swmail@xen0n.name, maskray@google.com, xuchenghua@loongson.cn,
mengqinggang@loongson.cn, huangpei@loongson.cn,
chenglulu@loongson.cn, caiyinyu@loongson.cn
Subject: Re: [PATCH v2 2/6] LoongArch:opcodes: Add new reloc types.
Date: Thu, 21 Jul 2022 15:51:50 +0800 [thread overview]
Message-ID: <59572c7c8856cb3e7b65c281a5b05f250712af67.camel@xry111.site> (raw)
In-Reply-To: <ca165756-e2c2-00f6-0737-0158e389266e@loongson.cn>
On Thu, 2022-07-21 at 14:02 +0800, liuzhensong wrote:
>
> It seems default for addi.d/ld.d to access extreme address.
> Simple example of abs32:
> address range of abs32 : 0~0xffffffff
> sym address: 0xfffff800
> lui12.w $rd, 0xfffff
> ori $rd, $d, 0x800
> $rd is 0xfffff800
> Obviously, lu12i.w and addi.w/ld.w can not get address > 0xfffff7fc
Hmm... Wouldn't "addi.{w/d} $t0, $zero, -0x800" work for this?
--
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University
next prev parent reply other threads:[~2022-07-21 7:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-21 1:37 [PATCH v2 0/6] Add new relocations for LoongArch liuzhensong
2022-07-21 1:37 ` [PATCH v2 1/6] bfd: Add supported for LoongArch new relocations liuzhensong
2022-07-21 1:37 ` [PATCH v2 2/6] LoongArch:opcodes: Add new reloc types liuzhensong
2022-07-21 2:30 ` Xi Ruoyao
2022-07-21 6:02 ` liuzhensong
2022-07-21 7:51 ` Xi Ruoyao [this message]
2022-07-21 8:26 ` liuzhensong
2022-07-21 1:37 ` [PATCH v2 3/6] LoongArch: gas: " liuzhensong
2022-07-21 1:37 ` [PATCH v2 4/6] LoongArch: Move ifunc info to rela.dyn from rela.plt liuzhensong
2022-07-21 1:37 ` [PATCH v2 5/6] bfd: Delete R_LARCH_NONE from dyn info of LoongArch liuzhensong
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