[Buildroot] [PATCH] ipkg: fix ARM MMU-less build

Khem Raj raj.khem at gmail.com
Tue Jul 26 18:14:16 UTC 2016


> On Jul 26, 2016, at 5:27 AM, Baruch Siach <baruch at tkos.co.il> wrote:
> 
> The code incorrectly tests for __ARCH_HAS_MMU__ which is true for the ARM
> architecture, instead of __ARCH_USE_MMU__ which applies to this specific
> build. Add a patch making direct use of HAVE_FORK that configure defines when
> fork() is detected.
> 
> Fixes:
> http://autobuild.buildroot.net/results/6cf/6cf75e08795d9ab194ce4e882c0f4858bad979c3/
> http://autobuild.buildroot.net/results/964/964d8f694bc7d05b35411eabfbadf40bbf6337ae/
> http://autobuild.buildroot.net/results/0f2/0f2cddf89af3ad4330556acd04ab6cb080370e24/
> 
> Signed-off-by: Baruch Siach <baruch at tkos.co.il>
> ---
> package/ipkg/0002-fix-arm-nommu.patch | 22 ++++++++++++++++++++++


ipkg has been superceded by opkg. May be it should just be removed?


> 1 file changed, 22 insertions(+)
> create mode 100644 package/ipkg/0002-fix-arm-nommu.patch
> 
> diff --git a/package/ipkg/0002-fix-arm-nommu.patch b/package/ipkg/0002-fix-arm-nommu.patch
> new file mode 100644
> index 000000000000..42279a958cc1
> --- /dev/null
> +++ b/package/ipkg/0002-fix-arm-nommu.patch
> @@ -0,0 +1,22 @@
> +libbb: fix ARM no MMU build
> +
> +uClibc-ng defines __ARCH_HAS_MMU__ for ARM because the architecture may
> +potentially have MMU. The code should test for __ARCH_USE_MMU__. But since
> +configure detects the presence of fork(), use HAVE_FORK directly.
> +
> +Signed-off-by: Baruch Siach <baruch at tkos.co.il>
> +---
> +Patch status: no active upstream
> +
> +diff -Nuar ipkg-0.99.163-orig/libbb/libbb.h ipkg-0.99.163/libbb/libbb.h
> +--- ipkg-0.99.163-orig/libbb/libbb.h	2006-02-06 10:13:02.000000000 +0200
> ++++ ipkg-0.99.163/libbb/libbb.h	2016-07-26 13:50:09.296988855 +0300
> +@@ -341,7 +341,7 @@
> + #define CONSOLE_DEV "/dev/console"
> +
> + /* Cope with mmu-less systems somewhat gracefully */
> +-#if defined(__UCLIBC__) && !defined(__ARCH_HAS_MMU__)
> ++#if !defined(HAVE_FORK)
> + #define fork	vfork
> + #endif
> +
> --
> 2.8.1
> 
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