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From: Lucas Stach <l.stach@pengutronix.de>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 2/5] efi: fix lds for secure boot support
Date: Thu, 09 Mar 2017 18:24:53 +0100	[thread overview]
Message-ID: <1489080293.24921.0.camel@pengutronix.de> (raw)
In-Reply-To: <1489070050-16024-2-git-send-email-plagnioj@jcrosoft.com>

Am Donnerstag, den 09.03.2017, 15:34 +0100 schrieb Jean-Christophe
PLAGNIOL-VILLARD:
> everythink need to be aligned to 4096

Why? The commit message isn't really telling anything.

Regards,
Lucas 

> 
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
> ---
>  arch/x86/mach-efi/elf_ia32_efi.lds.S         | 10 +++++++---
>  arch/x86/mach-efi/elf_x86_64_efi.lds.S       | 10 ++++++----
>  arch/x86/mach-efi/include/mach/barebox.lds.h | 14 +++++++++++++-
>  include/asm-generic/barebox.lds.h            |  8 +++++---
>  4 files changed, 31 insertions(+), 11 deletions(-)
> 
> diff --git a/arch/x86/mach-efi/elf_ia32_efi.lds.S b/arch/x86/mach-efi/elf_ia32_efi.lds.S
> index 69f43f554..6d9cb973c 100644
> --- a/arch/x86/mach-efi/elf_ia32_efi.lds.S
> +++ b/arch/x86/mach-efi/elf_ia32_efi.lds.S
> @@ -50,22 +50,23 @@ SECTIONS
>  		*(COMMON)
>  	}
>  
> -	. = ALIGN(64);
> +	. = ALIGN(4096);
>  
>  	__barebox_initcalls_start = .;
>  	__barebox_initcalls : { INITCALLS }
>  	__barebox_initcalls_end = .;
> +	. = ALIGN(4096);
>  
>  	__barebox_exitcalls_start = .;
>  	__barebox_exitcalls : { EXITCALLS }
>  	__barebox_exitcalls_end = .;
>  
> -	. = ALIGN(64);
> +	. = ALIGN(4096);
>  	__barebox_magicvar_start = .;
>  	.barebox_magicvar : { BAREBOX_MAGICVARS }
>  	__barebox_magicvar_end = .;
>  
> -	. = ALIGN(64);
> +	. = ALIGN(4096);
>  	__barebox_cmd_start = .;
>  	__barebox_cmd : { BAREBOX_CMDS }
>  	__barebox_cmd_end = .;
> @@ -76,6 +77,9 @@ SECTIONS
>  	.rel : {
>  		*(.rel.data)
>  		*(.rel.data.*)
> +		*(.rela.barebox*)
> +		*(.rela.initcall*)
> +		*(.rela.exitcall*)
>  		*(.rel.got)
>  		*(.rel.stab)
>  		*(.data.rel.ro.local)
> diff --git a/arch/x86/mach-efi/elf_x86_64_efi.lds.S b/arch/x86/mach-efi/elf_x86_64_efi.lds.S
> index 93d34d17a..8216d1d70 100644
> --- a/arch/x86/mach-efi/elf_x86_64_efi.lds.S
> +++ b/arch/x86/mach-efi/elf_x86_64_efi.lds.S
> @@ -23,6 +23,7 @@ SECTIONS
>  		*(.text)
>  		*(.text.*)
>  		*(.gnu.linkonce.t.*)
> +		. = ALIGN(16);
>  	}
>  
>  	_etext = .;
> @@ -33,8 +34,8 @@ SECTIONS
>  		*(.reloc)
>  	}
>  
> -	. = ALIGN(4096);
>  	_sdata = .;
> +	. = ALIGN(4096);
>  
>  	.data : {
>  		*(.rodata*)
> @@ -52,22 +53,23 @@ SECTIONS
>  		*(.rel.local)
>  	}
>  
> -	. = ALIGN(64);
> +	. = ALIGN(4096);
>  
>  	__barebox_initcalls_start = .;
>  	__barebox_initcalls : { INITCALLS }
>  	__barebox_initcalls_end = .;
> +	. = ALIGN(4096);
>  
>  	__barebox_exitcalls_start = .;
>  	__barebox_exitcalls : { EXITCALLS }
>  	__barebox_exitcalls_end = .;
>  
> -	. = ALIGN(64);
> +	. = ALIGN(4096);
>  	__barebox_magicvar_start = .;
>  	.barebox_magicvar : { BAREBOX_MAGICVARS }
>  	__barebox_magicvar_end = .;
>  
> -	. = ALIGN(64);
> +	. = ALIGN(4096);
>  	__barebox_cmd_start = .;
>  	__barebox_cmd : { BAREBOX_CMDS }
>  	__barebox_cmd_end = .;
> diff --git a/arch/x86/mach-efi/include/mach/barebox.lds.h b/arch/x86/mach-efi/include/mach/barebox.lds.h
> index 40a8c178f..e7a3bb9cd 100644
> --- a/arch/x86/mach-efi/include/mach/barebox.lds.h
> +++ b/arch/x86/mach-efi/include/mach/barebox.lds.h
> @@ -1 +1,13 @@
> -/* empty */
> +/*
> + * Copyright (C) 2017 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
> + *
> + * Under GPL v2
> + */
> +
> +#ifndef __EFI_MACH_BAREBOX_LDS_H__
> +#define __EFI_MACH_BAREBOX_LDS_H__
> +
> +/* For secure boot we need all the section to be 4096 alligned */
> +#define STRUCT_ALIGNMENT 4096
> +
> +#endif /* __EFI_MACH_BAREBOX_LDS_H__ */
> diff --git a/include/asm-generic/barebox.lds.h b/include/asm-generic/barebox.lds.h
> index c8a919b92..6c37751b3 100644
> --- a/include/asm-generic/barebox.lds.h
> +++ b/include/asm-generic/barebox.lds.h
> @@ -3,15 +3,17 @@
>   * Align to a 32 byte boundary equal to the
>   * alignment gcc 4.5 uses for a struct
>   */
> -#define STRUCT_ALIGNMENT 32
> -#define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT)
> -
>  #if defined CONFIG_X86 || \
>  	defined CONFIG_ARCH_EP93XX || \
>  	defined CONFIG_ARCH_ZYNQ
>  #include <mach/barebox.lds.h>
>  #endif
>  
> +#ifndef STRUCT_ALIGNMENT
> +#define STRUCT_ALIGNMENT 32
> +#endif
> +#define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT)
> +
>  #ifndef PRE_IMAGE
>  #define PRE_IMAGE
>  #endif



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  reply	other threads:[~2017-03-09 17:25 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-09 14:31 [PATCH 0/5] EFI Secure " Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 14:34 ` [PATCH 1/5] efi: add more security related guid for the efivars Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 14:34   ` [PATCH 2/5] efi: fix lds for secure boot support Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 17:24     ` Lucas Stach [this message]
2017-03-10 10:17       ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-10 11:05         ` Lucas Stach
2017-03-10 13:54           ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-10 13:57             ` Lucas Stach
2017-03-10 14:13             ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 14:34   ` [PATCH 3/5] efi: fix secure and setup mode report Jean-Christophe PLAGNIOL-VILLARD
2017-03-13  7:34     ` Sascha Hauer
2017-03-14  8:15       ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-09 14:34   ` [PATCH 4/5] boot: if we are in secure boot mode Jean-Christophe PLAGNIOL-VILLARD
2017-03-13  7:50     ` Sascha Hauer
2017-03-14  8:14       ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-13  7:55     ` Sascha Hauer
2017-03-14  8:07       ` Jean-Christophe PLAGNIOL-VILLARD
2017-03-14  9:48         ` Sascha Hauer
2017-03-09 14:34   ` [PATCH 5/5] efi: enable sercure boot support Jean-Christophe PLAGNIOL-VILLARD

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