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patches/glibc/2.9/430-2.7-cross-compile-nptl.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Dec 31 18:47:37 2011 +0100 (2011-12-31)
changeset 2829 0c3c95f911ec
parent 1201 c9967a6e3b25
permissions -rw-r--r--
docs: credit Konrad EISELE for the initial multilib support

Konrad submitted an initial patch adding multlib support:
http://sourceware.org/ml/crossgcc/2011-11/msg00040.html

The patch was full of good ideas, but had a few issues, so
I (Yann E. MORIN) started it all from scatch, re-using part
of the original patch. This got implemented in this series:
hg log -r 446a17b5dd1e:e47d17391ae3

As I forgot to credit Konrad in these changelogs, update the
docs so that the work by Konrad gets credited. Without his
initial effort, we would probably not have had multlib support
so soon. Thank you Konrad!

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/5070_all_glibc-2.7-cross-compile-nptl.patch

     2 

     3 -= BEGIN original header =-

     4 A little hack for cross-compiling NPTL

     5 

     6 http://sourceware.org/ml/libc-alpha/2005-02/msg00043.html

     7 

     8 -= END original header =-

     9 

    10 diff -durN glibc-2_9.orig/nptl/sysdeps/pthread/configure glibc-2_9/nptl/sysdeps/pthread/configure

    11 --- glibc-2_9.orig/nptl/sysdeps/pthread/configure	2007-10-17 00:24:30.000000000 +0200

    12 +++ glibc-2_9/nptl/sysdeps/pthread/configure	2009-02-02 22:01:28.000000000 +0100

    13 @@ -78,6 +78,10 @@

    14  fi

    15  { echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5

    16  echo "${ECHO_T}$libc_cv_forced_unwind" >&6; }

    17 +if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then

    18 +  echo "$as_me:$LINENO: forcing libc_cv_forced_unwind = yes for cross-compile"

    19 +  libc_cv_forced_unwind=yes

    20 +fi

    21  if test $libc_cv_forced_unwind = yes; then

    22    cat >>confdefs.h <<\_ACEOF

    23  #define HAVE_FORCED_UNWIND 1

    24 @@ -141,6 +145,10 @@

    25  { echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5

    26  echo "${ECHO_T}$libc_cv_c_cleanup" >&6; }

    27    CFLAGS="$old_CFLAGS"

    28 +  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then

    29 +    echo "$as_me:$LINENO: result: forcing libc_cv_c_cleanup = yes for cross-compile"

    30 +    libc_cv_c_cleanup=yes

    31 +  fi

    32    if test $libc_cv_c_cleanup = no; then

    33      { { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5

    34  echo "$as_me: error: the compiler must support C cleanup handling" >&2;}

    35 diff -durN glibc-2_9.orig/nptl/sysdeps/pthread/configure.in glibc-2_9/nptl/sysdeps/pthread/configure.in

    36 --- glibc-2_9.orig/nptl/sysdeps/pthread/configure.in	2003-12-03 07:50:01.000000000 +0100

    37 +++ glibc-2_9/nptl/sysdeps/pthread/configure.in	2009-02-02 22:01:28.000000000 +0100

    38 @@ -28,6 +28,9 @@

    39  struct _Unwind_Context *context;

    40  _Unwind_GetCFA (context)],

    41  libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)])

    42 +if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then

    43 +  libc_cv_forced_unwind=yes

    44 +fi

    45  if test $libc_cv_forced_unwind = yes; then

    46    AC_DEFINE(HAVE_FORCED_UNWIND)

    47  dnl Check for C cleanup handling.

    48 @@ -41,6 +44,9 @@

    49    puts ("test")],

    50  libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)])

    51    CFLAGS="$old_CFLAGS"

    52 +  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then

    53 +    libc_cv_c_cleanup=yes

    54 +  fi

    55    if test $libc_cv_c_cleanup = no; then

    56      AC_MSG_ERROR([the compiler must support C cleanup handling])

    57    fi
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