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patches/gcc/4.4.6/280-freebsd.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508 9e2761e59a75
parent 2149 98b7806295cc
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 diff -durN gcc-4.4.5.orig/gcc/config/freebsd-spec.h gcc-4.4.5/gcc/config/freebsd-spec.h

     2 --- gcc-4.4.5.orig/gcc/config/freebsd-spec.h	2009-04-10 01:23:07.000000000 +0200

     3 +++ gcc-4.4.5/gcc/config/freebsd-spec.h	2010-10-09 23:09:53.000000000 +0200

     4 @@ -61,6 +61,8 @@

     5  	builtin_assert ("system=unix");					\

     6  	builtin_assert ("system=bsd");					\

     7  	builtin_assert ("system=FreeBSD");				\

     8 +	if(!(flag_iso && (c_dialect_cxx () ? cxx_dialect == cxx98 : !flag_isoc99)))	\

     9 +		builtin_define("_LONGLONG");				\

    10  	FBSD_TARGET_CPU_CPP_BUILTINS();					\

    11      }									\

    12    while (0)

    13 diff -durN gcc-4.4.5.orig/gcc/config/t-freebsd-eh gcc-4.4.5/gcc/config/t-freebsd-eh

    14 --- gcc-4.4.5.orig/gcc/config/t-freebsd-eh	1970-01-01 01:00:00.000000000 +0100

    15 +++ gcc-4.4.5/gcc/config/t-freebsd-eh	2010-10-09 23:09:53.000000000 +0200

    16 @@ -0,0 +1,4 @@

    17 +# Use unwind-dw2-fde-glibc

    18 +LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde-glibc.c \

    19 +  $(srcdir)/unwind-sjlj.c $(srcdir)/gthr-gnat.c $(srcdir)/unwind-c.c

    20 +LIB2ADDEHDEP = unwind.inc unwind-dw2-fde.h unwind-dw2-fde.c

    21 diff -durN gcc-4.4.5.orig/gcc/config.gcc gcc-4.4.5/gcc/config.gcc

    22 --- gcc-4.4.5.orig/gcc/config.gcc	2010-10-09 23:02:56.000000000 +0200

    23 +++ gcc-4.4.5/gcc/config.gcc	2010-10-09 23:09:53.000000000 +0200

    24 @@ -456,7 +456,7 @@

    25    # pleases around the provided core setting.

    26    gas=yes

    27    gnu_ld=yes

    28 -  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o"

    29 +  extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"

    30    fbsd_major=`echo ${target} | sed -e 's/.*freebsd//g' | sed -e 's/\..*//g'`

    31    tm_defines="${tm_defines} FBSD_MAJOR=${fbsd_major}"

    32    tmake_file="t-slibgcc-elf-ver t-freebsd"

    33 @@ -1048,6 +1048,10 @@

    34  	;;

    35  i[34567]86-*-freebsd*)

    36  	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ${fbsd_tm_file} i386/freebsd.h"

    37 +	fbsd_major=`echo ${target} | sed -e 's/.*freebsd//g' | sed -e 's/\..*//g'`

    38 +	if test ${fbsd_major} -ge 7; then

    39 +		tmake_file="${tmake_file} t-freebsd-eh"

    40 +	fi

    41  	;;

    42  x86_64-*-freebsd*)

    43  	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ${fbsd_tm_file} i386/x86-64.h i386/freebsd.h i386/freebsd64.h"

    44 diff -durN gcc-4.4.5.orig/gcc/crtstuff.c gcc-4.4.5/gcc/crtstuff.c

    45 --- gcc-4.4.5.orig/gcc/crtstuff.c	2009-04-10 01:23:07.000000000 +0200

    46 +++ gcc-4.4.5/gcc/crtstuff.c	2010-10-09 23:09:53.000000000 +0200

    47 @@ -85,13 +85,15 @@

    48      && !defined(OBJECT_FORMAT_FLAT) \

    49      && defined(HAVE_LD_EH_FRAME_HDR) \

    50      && !defined(inhibit_libc) && !defined(CRTSTUFFT_O) \

    51 -    && defined(__GLIBC__) && __GLIBC__ >= 2

    52 +    && ((defined(__GLIBC__) && __GLIBC__ >= 2) \

    53 +    || (defined(__FreeBSD_version) && __FreeBSD_version >= 700022))

    54  #include <link.h>

    55  /* uClibc pretends to be glibc 2.2 and DT_CONFIG is defined in its link.h.

    56     But it doesn't use PT_GNU_EH_FRAME ELF segment currently.  */

    57  # if !defined(__UCLIBC__) \

    58 -     && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \

    59 -     || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))

    60 +     || (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \

    61 +     || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG))) \

    62 +     || (__FreeBSD_version >= 700022)

    63  #  define USE_PT_GNU_EH_FRAME

    64  # endif

    65  #endif

    66 diff -durN gcc-4.4.5.orig/gcc/unwind-dw2-fde-glibc.c gcc-4.4.5/gcc/unwind-dw2-fde-glibc.c

    67 --- gcc-4.4.5.orig/gcc/unwind-dw2-fde-glibc.c	2009-04-10 01:23:07.000000000 +0200

    68 +++ gcc-4.4.5/gcc/unwind-dw2-fde-glibc.c	2010-10-09 23:09:53.000000000 +0200

    69 @@ -46,8 +46,9 @@

    70  #include "gthr.h"

    71  

    72  #if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \

    73 -    && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \

    74 -	|| (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))

    75 +    && ((__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \

    76 +	|| (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG))) \

    77 +    || (__FreeBSD_version >= 700022 ))

    78  

    79  #ifndef __RELOC_POINTER

    80  # define __RELOC_POINTER(ptr, base) ((ptr) + (base))

    81 @@ -63,6 +64,13 @@

    82  #define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550)

    83  #endif

    84  

    85 +/* Support FreeBSD */

    86 +#ifndef ElfW

    87 +# ifdef __ElfN

    88 +#  define ElfW __ElfN

    89 +# endif

    90 +#endif

    91 +

    92  struct unw_eh_callback_data

    93  {

    94    _Unwind_Ptr pc;
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