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Issue in building the libgcc-Os-4-200.a library for SH target
- From: "Cecilia Rodrigues" <Cecilia dot Rodrigues at kpitcummins dot com>
- To: <gcc at gcc dot gnu dot org>
- Cc: "Prafulla Thakare" <Prafulla dot Thakare at kpitcummins dot com>
- Date: Tue, 7 Oct 2008 16:38:38 +0530
- Subject: Issue in building the libgcc-Os-4-200.a library for SH target
Hi,
We have built a cross compiled toolchain for SH target using the
following sources,
gcc-4.3.1 [released],
newlib-1.16.0 [released]
binutils-2.18.50 [snapshot dated 30th July 2008],
We have experienced following error, when building a C++ application
using a toolchain built with the above mentioned sources,
////////////////////////////////////////////////////////////////////////
/////
"sh-elf-ld.exe: sh-elf\lib\gcc\sh-elf\4.3.1\ml\m2\libgcc-Os-4-200.a
(unwind-dw2-Os-4-200.o): compiled for a big endian system and target is
little endian
sh-elf-ld.exe: \sh-elf\lib\gcc\sh-elf\4.3.1\ml\m2\libgcc-Os-4-200.a
(unwind-dw2-Os-4-200.o): uses instructions which are incompatible with
instructions used in previous modules
sh-elf-ld.exe: failed to merge target specific data of file
sh-elf\lib\gcc\sh-elf\4.3.1\ml\m2\libgcc-Os-4-200.a(unwind-dw2-Os-4-200.
o)"
////////////////////////////////////////////////////////////////////////
/////
The libgcc-Os-4-200.a archive built for SH target consists of the
following object files, udivsi3_i4i-Os-4-200.o sdivsi3_i4i-Os-4-200.o
unwind-dw2-Os-4-200.o
It has been observed that the object file "unwind-dw2-Os-4-200.o" gets
built for big endian instead of little endian target.Whereas the other
two object files, "udivsi3_i4i-Os-4-200.o" and "sdivsi3_i4i-Os-4-200.o"
from the same archive are successfully built for little endian target of
SH.
The libraries built for little endian SH-2/SH-3 target series resides at
the following path,
sh-elf/lib/gcc/sh-elf/4.3.1/ml/m2
We have also observed that the target specific options such as ml, m2,
ml m2 etc are not passed to the compiler while building the
"unwind-dw2-Os-4-200" object.
It appears that, somewhere in the GCC makefiles, the required options
have been missed while building the "unwind-dw2-Os-4-200.o" component.
Has anyone faced a similar problem? Any possible workaround?
Regards,
Cecilia Rodrigues
KPIT Cummins Infosystems Ltd.
Pune, India