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patches/gcc/4.4.2/280-freebsd.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 23:38:18 2010 +0200 (2010-09-12)
changeset 2120 48de021b3a9e
parent 1544 2228ea3f6b79
permissions -rw-r--r--
arch/mips: add experimental mips64 samples

Both toolchains were tested to successfully:
- _build_ busybox, giving respectively an n32 and an n64 binary
although it has not been run-tested.
- build linux-2.6.36-rc3 for Loongson, giving an n64 vmlinux
(which is expected, due to the way the kernel is built),
and the kernel properly boots!

Credits are due to Julien MOUTHINO (julm on freenode#uClibc) for
testing that the kernel boots on his hardware! Cheers! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 diff -durN gcc-4.4.0.orig/gcc/config/freebsd-spec.h gcc-4.4.0/gcc/config/freebsd-spec.h

     2 --- gcc-4.4.0.orig/gcc/config/freebsd-spec.h	2009-04-10 01:23:07.000000000 +0200

     3 +++ gcc-4.4.0/gcc/config/freebsd-spec.h	2009-05-27 21:38:45.000000000 +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-4.4.0.orig/gcc/config/t-freebsd-eh gcc-4.4.0/gcc/config/t-freebsd-eh

    14 --- gcc-4.4.0.orig/gcc/config/t-freebsd-eh	1970-01-01 01:00:00.000000000 +0100

    15 +++ gcc-4.4.0/gcc/config/t-freebsd-eh	2009-05-27 21:38:45.000000000 +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-4.4.0.orig/gcc/config.gcc gcc-4.4.0/gcc/config.gcc

    22 --- gcc-4.4.0.orig/gcc/config.gcc	2009-05-27 21:38:34.000000000 +0200

    23 +++ gcc-4.4.0/gcc/config.gcc	2009-05-27 21:38:45.000000000 +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 @@ -1042,6 +1042,10 @@

    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-4.4.0.orig/gcc/crtstuff.c gcc-4.4.0/gcc/crtstuff.c

    45 --- gcc-4.4.0.orig/gcc/crtstuff.c	2009-04-10 01:23:07.000000000 +0200

    46 +++ gcc-4.4.0/gcc/crtstuff.c	2009-05-27 21:38:45.000000000 +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-4.4.0.orig/gcc/unwind-dw2-fde-glibc.c gcc-4.4.0/gcc/unwind-dw2-fde-glibc.c

    67 --- gcc-4.4.0.orig/gcc/unwind-dw2-fde-glibc.c	2009-04-10 01:23:07.000000000 +0200

    68 +++ gcc-4.4.0/gcc/unwind-dw2-fde-glibc.c	2009-05-27 21:38:45.000000000 +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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