patches/glibc/2.9/550-2.9-elf-begin.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed May 25 20:23:48 2011 +0200 (2011-05-25)
branch1.11
changeset 2552 cc285cc98e65
permissions -rw-r--r--
debug/gdb: fix runtime sysroot

This patch sets the runtime sysroot to fix the following GDB warning:
"Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code."

The sysroot can later be changed within gdb with the `set sysroot`
command if necessary.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
(transplanted from 7690196856ce4a4700d1887cc3adf80acc627c52)
     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))	\