linux-kernel - Re: [PATCH] Add non-zero module sections to sysfs

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Date:	Thu, 04 Apr 2013 11:30:38 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Sebastian Wankerl <sisewank@....cs.fau.de>,
	linux-kernel@...r.kernel.org
Cc:	Sebastian Wankerl <sisewank@....cs.fau.de>,
	Philip Kranz <philip.kranz@...glemail.com>
Subject: Re: [PATCH] Add non-zero module sections to sysfs

Sebastian Wankerl <sisewank@....cs.fau.de> writes:
> Add non-zero module sections to sysfs on architectures unequal to PARISC.
> KGDB needs all module sections for proper module debugging. Therefore, commit 
> 35dead4235e2b67da7275b4122fed37099c2f462 is revoked except for PARISC
> architecture.

#ifdef CONFIG_PARISC in the middle of kernel/module.c is super-ugly, and
wrong.

My preference would be to fix kgdb.  If the section is empty, what need
does it have to examine it?

Thanks,
Rusty.

> Signed-off-by: Sebastian Wankerl <sisewank@....cs.fau.de>
> Signed-off-by: Philip Kranz <philip.kranz@...glemail.com>
>
> ---
>  kernel/module.c |    4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/kernel/module.c b/kernel/module.c
> index 3c2c72d..5393a54 100644
> --- a/kernel/module.c
> +++ b/kernel/module.c
> @@ -1316,7 +1316,11 @@ resolve_symbol_wait(struct module *mod,
>  #ifdef CONFIG_KALLSYMS
>  static inline bool sect_empty(const Elf_Shdr *sect)
>  {
> +#if defined(CONFIG_PARISC)
>  	return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
> +#else
> +	return !(sect->sh_flags & SHF_ALLOC);
> +#endif
>  }
>  
>  struct module_sect_attr
> -- 
> 1.7.10.4
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