patches/glibc/2.9/550-2.9-elf-begin.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 23:38:18 2010 +0200 (2010-09-12)
changeset 2120 48de021b3a9e
permissions -rw-r--r--
arch/mips: add experimental mips64 samples

Both toolchains were tested to successfully:
- _build_ busybox, giving respectively an n32 and an n64 binary
although it has not been run-tested.
- build linux-2.6.36-rc3 for Loongson, giving an n64 vmlinux
(which is expected, due to the way the kernel is built),
and the kernel properly boots!

Credits are due to Julien MOUTHINO (julm on freenode#uClibc) for
testing that the kernel boots on his hardware! Cheers! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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[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
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[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
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[ALL  ]    /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/librtld.os: In function `_dl_start_final':
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[ALL  ]    rtld.c:(.text+0x2fe): undefined reference to `_begin'
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[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
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[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
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[ALL  ]    collect2: ld returned 1 exit status
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[ERROR]    make[3]: *** [/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so] Error 1
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[ALL  ]    make[3]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/src/glibc-2.9/elf'
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[ERROR]    make[2]: *** [elf/subdir_lib] Error 2
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[ALL  ]    make[2]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/src/glibc-2.9'
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[ERROR]    make[1]: *** [all] Error 2
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[ALL  ]    make[1]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc'
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[ERROR]    Build failed in step 'Installing C library'
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[ERROR]    Error happened in '/local/nyet-build/crosstool-ng-svn/scripts/functions' in function 'CT_DoExecLog' (line unknown, sorry)
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[ERROR]          called from '/local/nyet-build/crosstool-ng-svn/scripts/build/libc/glibc.sh' at line # 504 in function 'do_libc'
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[ERROR]          called from '/local/nyet-build/crosstool-ng-svn/scripts/crosstool-NG.sh' at line # 478 in function 'main'
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--- glibc-2.9_orig/elf/Makefile	2009-03-26 20:26:42.000000000 -0700
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+++ glibc-2.9/elf/Makefile	2009-03-26 20:14:11.000000000 -0700
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@@ -304,7 +304,7 @@
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 		  $(LDFLAGS-rtld) -Wl,-z,defs -Wl,--verbose 2>&1 |	\
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 		  LC_ALL=C \
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 		  sed -e '/^=========/,/^=========/!d;/^=========/d'	\
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-		      -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
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+		      -e 's/\. = .* + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
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 		  > $@.lds
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 	$(LINK.o) -nostdlib -nostartfiles -shared -o $@			\
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 		  $(LDFLAGS-rtld) -Wl,-z,defs $(z-now-$(bind-now))	\