[LTP] Problems with cross-compiling

[LTP] Problems with cross-compiling

[Mats Liljegren]

I've been using Yocto, which does cross-compiling. It has support for
compiling LTP, but I've noticed it has a couple of patches. I found
that one patch was needed for actually compile LTP, which applies to
the file utils/Makefile.

The patch is for an older version of LTP, but I re-implemented it for
the new version. Looking at the following rule:

$(FFSB): $(abs_srcdir)/$(FFSBDIR)
        mkdir -p $(FFSBDIR)
        cd $(FFSBDIR) && "$^/configure" && $(MAKE) top_srcdir="$^" all

This calls configure without parameters, which is most likely wrong for
a cross-compile environment. It is this configure that fails. By simple
removing it, everything works within Yocto.

Is there any reason for keeping this configure here? Or should I make
a patch for removing it?

Regards
Mats Liljegren

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Re: [LTP] Problems with cross-compiling

[chrubis]

Hi!
> I've been using Yocto, which does cross-compiling. It has support for
> compiling LTP, but I've noticed it has a couple of patches. I found
> that one patch was needed for actually compile LTP, which applies to
> the file utils/Makefile.
> 
> The patch is for an older version of LTP, but I re-implemented it for
> the new version. Looking at the following rule:
> 
> $(FFSB): $(abs_srcdir)/$(FFSBDIR)
>         mkdir -p $(FFSBDIR)
>         cd $(FFSBDIR) && "$^/configure" && $(MAKE) top_srcdir="$^" all
> 
> This calls configure without parameters, which is most likely wrong for
> a cross-compile environment. It is this configure that fails. By simple
> removing it, everything works within Yocto.
> 
> Is there any reason for keeping this configure here? Or should I make
> a patch for removing it?

The ffsb configure should be called from the top-level configure the
same way it's done for the realtime directory.

Does following work for cross-compilation?

1. Remove the configure from the Makefile
2. Add AC_CONFIG_SUBDIRS([utils/ffsb-6.0-rc2]) into the configure.ac
3. Regenerate top level configure by make autotools
4. ./configure && make

-- 
Cyril Hrubis
chrubis@suse.cz

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[LTP] [PATCH] utils/Makefile: Move ffsb configure to configure.ac

[Mats Liljegren]

I have now tried moving configure call from utils/Makefile to configure.ac, and
it compiles both natively as well as a cross-compile. I also managed to start
the fs_ext4 test case. Not sure whether this tells anything about ffsb since
I'm not sure what it is, but it looked like it was related to ext4.

/Mats

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[LTP] [PATCH] utils/Makefile: Move ffsb configure to configure.ac

[Mats Liljegren]

The configure call was done from make file without appropriate parameters,
which breaks cross-compiling. Include ffsb into configure.ac so that it is
included in the main configure call.

This fix is based on a patch by Fathi Boudra <fathi.boudra@linaro.org> for an
earlier version of LTP.

CC: Fathi Boudra <fathi.boudra@linaro.org>
Signed-off-by: Mats Liljegren <mats.liljegren@enea.com>
---
 configure.ac   |    2 ++
 utils/Makefile |    2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 4ea5868..9f397e7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -142,6 +142,8 @@ else
     AC_SUBST([WITH_REALTIME_TESTSUITE],["no"])
 fi
 
+AC_CONFIG_SUBDIRS([utils/ffsb-6.0-rc2])
+
 # END testsuites knobs
 LTP_CHECK_FORTIFY_SOURCE
 LTP_CHECK_CC_WARN_OLDSTYLE
diff --git a/utils/Makefile b/utils/Makefile
index 923bb2d..1508b35 100644
--- a/utils/Makefile
+++ b/utils/Makefile
@@ -30,7 +30,7 @@ FFSB			:= $(FFSBDIR)/ffsb
 
 $(FFSB): $(abs_srcdir)/$(FFSBDIR)
 	mkdir -p $(FFSBDIR)
-	cd $(FFSBDIR) && "$^/configure" && $(MAKE) top_srcdir="$^" all
+	cd $(FFSBDIR) && $(MAKE) top_srcdir="$^" all
 
 ffsb: $(FFSB)
 	cp $(FFSB) ffsb
-- 
1.7.10.4


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Re: [LTP] [PATCH] utils/Makefile: Move ffsb configure to configure.ac

[chrubis]

Hi!
> The configure call was done from make file without appropriate parameters,
> which breaks cross-compiling. Include ffsb into configure.ac so that it is
> included in the main configure call.
> 
> This fix is based on a patch by Fathi Boudra <fathi.boudra@linaro.org> for an
> earlier version of LTP.

Tested with out-of-tree build and pushed.

-- 
Cyril Hrubis
chrubis@suse.cz

------------------------------------------------------------------------------
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