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patches/binutils/2.20.1a/280-unexport_LD_LIBRARY_PATH.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 2088 4f21ba5f8e91
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Description:

     2 

     3 This patch is needed in situations where build system is running same version of

     4 binutils that is intended to be built  cross-native ( build != host = target)

     5  and has shared libraries enabled. binutils/binutils

     6 Makefile has some tools which are built to run on build system. Toplevel makefile

     7 for binutils passes HOST_EXPORTS to sub-makefiles which also include RPATH_ENVVARS

     8 containing LD_LIBRARY_PATH which is modified so that it also includes host libraries

     9 like opcodes and libbfd which are just built for the host system. 

    10 

    11 Now the problem is that same LD_LIBRARY_PATH value gets set in environment even

    12 for the tools that are being built for build system using CC_FOR_BUILD and the tools

    13 like as,ld it invokes from build machine get the LD_LIBRARY_PATH set to search

    14 the newly build host libraries like opcodes and bfd and if host is like a big endian

    15 system say (mips-linux) the build system linker and assembler do not run because

    16 ld.so tries to load these shared libraries instead of the ones from /usr/lib for 

    17 the build tools. 

    18 

    19 This patch fixes the issue by clearing LD_LIBRARY_PATH for BUILD tools

    20 

    21 This patch would be needed on other versions of binutils. I just cared about 2.20

    22 May be upstream is also interested in such a patch.

    23 

    24 -Khem

    25 

    26 Index: binutils-2.20/binutils/Makefile.am

    27 ===================================================================

    28 

    29 diff -durN binutils-2.20.1.orig/binutils/Makefile.am binutils-2.20.1/binutils/Makefile.am

    30 --- binutils-2.20.1.orig/binutils/Makefile.am	2010-01-14 11:48:22.000000000 +0100

    31 +++ binutils-2.20.1/binutils/Makefile.am	2010-08-17 19:32:24.000000000 +0200

    32 @@ -251,24 +251,24 @@

    33  	./sysinfo$(EXEEXT_FOR_BUILD) -d <$(srcdir)/sysroff.info >sysroff.h

    34  

    35  sysinfo$(EXEEXT_FOR_BUILD): sysinfo.o syslex.o

    36 -	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@ sysinfo.o syslex.o

    37 +	LD_LIBRARY_PATH= $(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@ sysinfo.o syslex.o

    38  

    39  syslex.o: syslex.c sysinfo.h config.h

    40  	if [ -r syslex.c ]; then \

    41 -	  $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) syslex.c ; \

    42 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) syslex.c ; \

    43  	else \

    44 -	  $(CC_FOR_BUILD) -c -I. -I$(srcdir) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/syslex.c ;\

    45 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. -I$(srcdir) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/syslex.c ;\

    46  	fi

    47  

    48  sysinfo.o: sysinfo.c

    49  	if [ -r sysinfo.c ]; then \

    50 -	  $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) sysinfo.c ; \

    51 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) sysinfo.c ; \

    52  	else \

    53 -	  $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/sysinfo.c ; \

    54 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/sysinfo.c ; \

    55  	fi

    56  

    57  bin2c$(EXEEXT_FOR_BUILD):

    58 -	$(CC_FOR_BUILD) -o $@ $(AM_CPPFLAGS) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) $(srcdir)/bin2c.c $(srcdir)/version.c

    59 +	LD_LIBRARY_PATH= $(CC_FOR_BUILD) -o $@ $(AM_CPPFLAGS) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) $(srcdir)/bin2c.c $(srcdir)/version.c

    60  

    61  embedspu: embedspu.sh

    62  	sed "s@^program_transform_name=@program_transform_name=$(program_transform_name)@" < $< > $@

    63 diff -durN binutils-2.20.1.orig/binutils/Makefile.in binutils-2.20.1/binutils/Makefile.in

    64 --- binutils-2.20.1.orig/binutils/Makefile.in	2010-03-03 14:59:46.000000000 +0100

    65 +++ binutils-2.20.1/binutils/Makefile.in	2010-08-17 19:32:24.000000000 +0200

    66 @@ -1193,24 +1193,24 @@

    67  	./sysinfo$(EXEEXT_FOR_BUILD) -d <$(srcdir)/sysroff.info >sysroff.h

    68  

    69  sysinfo$(EXEEXT_FOR_BUILD): sysinfo.o syslex.o

    70 -	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@ sysinfo.o syslex.o

    71 +	LD_LIBRARY_PATH= $(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@ sysinfo.o syslex.o

    72  

    73  syslex.o: syslex.c sysinfo.h config.h

    74  	if [ -r syslex.c ]; then \

    75 -	  $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) syslex.c ; \

    76 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) syslex.c ; \

    77  	else \

    78 -	  $(CC_FOR_BUILD) -c -I. -I$(srcdir) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/syslex.c ;\

    79 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. -I$(srcdir) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/syslex.c ;\

    80  	fi

    81  

    82  sysinfo.o: sysinfo.c

    83  	if [ -r sysinfo.c ]; then \

    84 -	  $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) sysinfo.c ; \

    85 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) sysinfo.c ; \

    86  	else \

    87 -	  $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/sysinfo.c ; \

    88 +	  LD_LIBRARY_PATH= $(CC_FOR_BUILD) -c -I. $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(NO_WERROR) $(srcdir)/sysinfo.c ; \

    89  	fi

    90  

    91  bin2c$(EXEEXT_FOR_BUILD):

    92 -	$(CC_FOR_BUILD) -o $@ $(AM_CPPFLAGS) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) $(srcdir)/bin2c.c $(srcdir)/version.c

    93 +	LD_LIBRARY_PATH= $(CC_FOR_BUILD) -o $@ $(AM_CPPFLAGS) $(AM_CFLAGS) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) $(srcdir)/bin2c.c $(srcdir)/version.c

    94  

    95  embedspu: embedspu.sh

    96  	sed "s@^program_transform_name=@program_transform_name=$(program_transform_name)@" < $< > $@
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