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patches/glibc/2.9/430-2.7-cross-compile-nptl.patch
author Cody Schafer <dev@codyps.com>
Fri May 09 19:13:49 2014 -0700 (2014-05-09)
changeset 3312 4876ff97e039
parent 1201 c9967a6e3b25
permissions -rw-r--r--
cc/gcc: allow CC_EXTRA_CONFIG_ARRAY on baremetal

The final bare-metal compiler is built using the core backend.
Currently the core uses the CC_CORE_EXTRA_CONFIG_ARRAY variable.

While this works as supposed to, this can leave the user puzzled
in the menuconfig, since all he can see is the core options, not
the final options.

Only show the core options if any of the core passes are needed,
and use the final options in the core-backend if we're issuing
the bare-metal compiler.

Signed-off-by: Cody P Schafer <dev@codyps.com>
[yann.morin.1998@free.fr: hide core options if no core pass needed;
use final option in core backend if issuing the bare-metal compiler]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <22181e546ba746202489.1399688067@localhost>
Patchwork-Id: 347586 
     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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