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Message-ID: <5f31f8e9-75ad-4cb8-5998-dc9c8d00c70f@loongson.cn>
Date: Sat, 14 Oct 2023 11:40:14 +0800
From: Tiezhu Yang <yangtiezhu@...ngson.cn>
To: Huacai Chen <chenhuacai@...nel.org>
Cc: Josh Poimboeuf <jpoimboe@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org,
loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH v2 4/8] objtool/LoongArch: Enable orc to be built
On 10/10/2023 08:52 PM, Huacai Chen wrote:
> Hi, Tiezhu,
>
> On Mon, Oct 9, 2023 at 9:03 PM Tiezhu Yang <yangtiezhu@...ngson.cn> wrote:
>>
>> Implement arch-specific init_orc_entry(), reg_name(), orc_type_name(),
>> print_reg() and orc_print_dump(), then set BUILD_ORC as y to build the
>> orc related files.
...
>> +#define ORC_REG_SP 2
>> +#define ORC_REG_BP 3
> There is no BP register for LoongArch, so I think all 'BP' should be
> 'FP' in this patch.
Makes sense, thank you, will do it.
>> +#define ORC_REG_MAX 4
...
>> +struct orc_entry {
>> + s16 sp_offset;
>> + s16 bp_offset;
>> + s16 ra_offset;
>> + unsigned int sp_reg:4;
>> + unsigned int bp_reg:4;
>> + unsigned int ra_reg:4;
>> + unsigned int type:3;
>> + unsigned int signal:1;
>> +};
At the same time, I will replace bp_offset with fp_offset and
replace bp_reg with fp_reg, then modify the related code.
Thanks,
Tiezhu
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