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patches/glibc/2.9/550-2.9-elf-begin.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 [ALL  ]    powerpc-860-linux-gnu-gcc       -nostdlib -nostartfiles -shared                        -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs -Wl,--verbose 2>&1 |                    LC_ALL=C                sed -e '/^=========/,/^=========/!d;/^=========/d'                          -e 's/. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/'              > /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so.lds

     2 [ALL  ]    powerpc-860-linux-gnu-gcc       -nostdlib -nostartfiles -shared -o /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so                                         -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs                         /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/librtld.os -Wl,--version-script=/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/ld.map                                  -Wl,-soname=ld.so.1 -T /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so.lds

     3 [ALL  ]    /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/librtld.os: In function `_dl_start_final':

     4 [ALL  ]    rtld.c:(.text+0x2fe): undefined reference to `_begin'

     5 [ALL  ]    /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/gcc-core-shared/lib/gcc/powerpc-860-linux-gnu/4.3.3/../../../../powerpc-860-linux-gnu/bin/ld: /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so: hidden symbol `_begin' isn't defined

     6 [ALL  ]    /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/gcc-core-shared/lib/gcc/powerpc-860-linux-gnu/4.3.3/../../../../powerpc-860-linux-gnu/bin/ld: final link failed: Nonrepresentable section on output

     7 [ALL  ]    collect2: ld returned 1 exit status

     8 [ERROR]    make[3]: *** [/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so] Error 1

     9 [ALL  ]    make[3]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/src/glibc-2.9/elf'

    10 [ERROR]    make[2]: *** [elf/subdir_lib] Error 2

    11 [ALL  ]    make[2]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/src/glibc-2.9'

    12 [ERROR]    make[1]: *** [all] Error 2

    13 [ALL  ]    make[1]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc'

    14 [ERROR]    Build failed in step 'Installing C library'

    15 [ERROR]    Error happened in '/local/nyet-build/crosstool-ng-svn/scripts/functions' in function 'CT_DoExecLog' (line unknown, sorry)

    16 [ERROR]          called from '/local/nyet-build/crosstool-ng-svn/scripts/build/libc/glibc.sh' at line # 504 in function 'do_libc'

    17 [ERROR]          called from '/local/nyet-build/crosstool-ng-svn/scripts/crosstool-NG.sh' at line # 478 in function 'main'

    18 

    19 --- glibc-2.9_orig/elf/Makefile	2009-03-26 20:26:42.000000000 -0700

    20 +++ glibc-2.9/elf/Makefile	2009-03-26 20:14:11.000000000 -0700

    21 @@ -304,7 +304,7 @@

    22  		  $(LDFLAGS-rtld) -Wl,-z,defs -Wl,--verbose 2>&1 |	\

    23  		  LC_ALL=C \

    24  		  sed -e '/^=========/,/^=========/!d;/^=========/d'	\

    25 -		      -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \

    26 +		      -e 's/\. = .* + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \

    27  		  > $@.lds

    28  	$(LINK.o) -nostdlib -nostartfiles -shared -o $@			\

    29  		  $(LDFLAGS-rtld) -Wl,-z,defs $(z-now-$(bind-now))	\
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