From: Yann E. MORIN <yann.morin.1998@free.fr>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH] duma: not available on non-MMU platforms
Date: Sun, 18 May 2014 23:36:14 +0200 [thread overview]
Message-ID: <20140518213614.GE3631@free.fr> (raw)
In-Reply-To: <1400435100-10211-1-git-send-email-thomas.petazzoni@free-electrons.com>
Thomas, All,
On 2014-05-18 19:45 +0200, Thomas Petazzoni spake thusly:
> By design, building duma on Blackfin and other non-MMU platforms is
> quite useless: it uses page mappings to detect buffer overrun and
> use-after-free programming errors. Therefore, this commit simply marks
> duma as not available on non-MMU platforms.
>
> Fixes:
>
> http://autobuild.buildroot.org/results/951/9519d7abb45c6a789874ec6bb84418c31a98916b/
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Regards,
Yann E. MORIN.
> ---
> package/duma/Config.in | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/package/duma/Config.in b/package/duma/Config.in
> index e9cc9b2..7679e64 100644
> --- a/package/duma/Config.in
> +++ b/package/duma/Config.in
> @@ -2,6 +2,10 @@ config BR2_PACKAGE_DUMA
> bool "duma"
> depends on BR2_INSTALL_LIBSTDCPP
> depends on BR2_TOOLCHAIN_HAS_THREADS
> + # By design, duma uses page mapping to isolate
> + # allocations. Non-MMU platforms cannot perform such
> + # things.
> + depends on BR2_USE_MMU
> help
> D.U.M.A. - Detect Unintended Memory Access. A fork of the
> Electric Fence library. Detects buffer overflow and
> @@ -17,4 +21,5 @@ config BR2_PACKAGE_DUMA_NO_LEAKDETECTION
> endif # BR2_PACKAGE_DUMA
>
> comment "duma needs a toolchain w/ C++, threads"
> + depends on BR2_USE_MMU
> depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS
> --
> 1.9.3
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
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prev parent reply other threads:[~2014-05-18 21:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-18 17:45 [Buildroot] [PATCH] duma: not available on non-MMU platforms Thomas Petazzoni
2014-05-18 21:35 ` Peter Korsgaard
2014-05-18 21:36 ` Yann E. MORIN [this message]
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