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Date: Wed, 01 Feb 2017 23:43:36 -0800
From: hpa@...or.com
To: Ingo Molnar <mingo@...nel.org>,
Nicolas Iooss <nicolas.iooss_linux@....org>
CC: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/1] x86, relocs: add printf attribute to die()
On February 1, 2017 11:16:00 PM PST, Ingo Molnar <mingo@...nel.org> wrote:
>
>* Nicolas Iooss <nicolas.iooss_linux@....org> wrote:
>
>> With %Ld, my compiler (gcc 6.3.1 on x86_64) complains:
>>
>> arch/x86/tools/relocs.c:400:7: error: format ‘%Ld’ expects argument
>of
>> type ‘long long int’, but argument 2 has type ‘Elf64_Off {aka long
>> unsigned int}’ [-Werror=format=]
>
>How did it pick up that type as an 'unsigned long'? We have:
>
> include/uapi/linux/elf.h:typedef __u64 Elf64_Off;
>
>Even user-space has it as a pure 64-bit type:
>
> /usr/include/elf.h:typedef uint64_t Elf64_Off;
>
>Thanks,
>
> Ingo
uint64_t is unsigned long on x86-64.
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