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patches/uClibc/0.9.29/120-fix-internal_function-definition.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508 9e2761e59a75
parent 281 7039139a912a
permissions -rw-r--r--
debug/cross-gdb: check host dependencies

Cross-gdb depends on expat and python. If either is missing, cross-gdb will
build successfully, but lacking some features.

Especially, if expat is missing, cross-gdb will be unable to parse the target
description, which may lead to runtime malfunctions and the following GDB
warning:
"Can not parse XML target description; XML support was disabled at compile time"

Hence, expat should be considered mandatory.

On the other hand, the features missing without python are not critical, so
python should not be considered mandatory.

This patch does the following:
- At configure time, warn the user if either expat or python is missing.
- In menuconfig, disable the static build options regarding cross-gdb if no
static version of expat is available, and disable cross-gdb if expat is
missing.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
[yann.morin.1998@anciens.enib.fr: add comment for impossible static cross-gdb]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Index: uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h

     2 ===================================================================

     3 --- uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h	(revision 18898)

     4 +++ uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h	(working copy)

     5 @@ -42,6 +42,8 @@

     6  /* define if target supports IEEE signed zero floats */

     7  #define __UCLIBC_HAVE_SIGNED_ZERO__

     8  

     9 +#if defined _LIBC

    10  #define internal_function __attribute__ ((regparm (3), stdcall))

    11 +#endif

    12  

    13  #endif /* _BITS_UCLIBC_ARCH_FEATURES_H */

    14 Index: uClibc/include/libc-symbols.h

    15 ===================================================================

    16 --- uClibc/include/libc-symbols.h	(revision 18898)

    17 +++ uClibc/include/libc-symbols.h	(working copy)

    18 @@ -22,6 +22,16 @@

    19  #ifndef _LIBC_SYMBOLS_H

    20  #define _LIBC_SYMBOLS_H	1

    21  

    22 +/* This is defined for the compilation of all C library code.  features.h

    23 +   tests this to avoid inclusion of stubs.h while compiling the library,

    24 +   before stubs.h has been generated.  Some library code that is shared

    25 +   with other packages also tests this symbol to see if it is being

    26 +   compiled as part of the C library.  We must define this before including

    27 +   config.h, because it makes some definitions conditional on whether libc

    28 +   itself is being compiled, or just some generator program.  */

    29 +#define _LIBC	1

    30 +

    31 +

    32  /* This file's macros are included implicitly in the compilation of every

    33     file in the C library by -imacros.

    34  

    35 @@ -40,16 +50,6 @@

    36  

    37  #include <bits/uClibc_arch_features.h>

    38  

    39 -

    40 -/* This is defined for the compilation of all C library code.  features.h

    41 -   tests this to avoid inclusion of stubs.h while compiling the library,

    42 -   before stubs.h has been generated.  Some library code that is shared

    43 -   with other packages also tests this symbol to see if it is being

    44 -   compiled as part of the C library.  We must define this before including

    45 -   config.h, because it makes some definitions conditional on whether libc

    46 -   itself is being compiled, or just some generator program.  */

    47 -#define _LIBC	1

    48 -

    49  /* Enable declarations of GNU extensions, since we are compiling them.  */

    50  #define _GNU_SOURCE	1

    51
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