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patches/gcc/3.4.6/260-arm-softfloat.patch
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Mon Apr 16 15:25:36 2012 +0200 (2012-04-16)
changeset 2941 13e40098fffc
parent 402 197e1b49586e
permissions -rw-r--r--
cc/gcc: update Linaro GCC revisions to 2012.04

Update Linaro GCC with the latest available revisions.

The 4.7 revision is also released, but the infrastructure is not yet ready for
it in CT-NG.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com> 
     1 diff -durN gcc-3.4.6.orig/gcc/config/arm/coff.h gcc-3.4.6/gcc/config/arm/coff.h

     2 --- gcc-3.4.6.orig/gcc/config/arm/coff.h	2004-02-24 15:25:22.000000000 +0100

     3 +++ gcc-3.4.6/gcc/config/arm/coff.h	2007-08-15 23:10:54.000000000 +0200

     4 @@ -31,11 +31,16 @@

     5  #define TARGET_VERSION fputs (" (ARM/coff)", stderr)

     6  

     7  #undef  TARGET_DEFAULT

     8 -#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)

     9 +#define TARGET_DEFAULT		\

    10 +	( ARM_FLAG_SOFT_FLOAT	\

    11 +	| ARM_FLAG_VFP		\

    12 +	| ARM_FLAG_APCS_32	\

    13 +	| ARM_FLAG_APCS_FRAME	\

    14 +	| ARM_FLAG_MMU_TRAPS )

    15  

    16  #ifndef MULTILIB_DEFAULTS

    17  #define MULTILIB_DEFAULTS \

    18 -  { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork" }

    19 +  { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork" }

    20  #endif

    21  

    22  /* This is COFF, but prefer stabs.  */

    23 diff -durN gcc-3.4.6.orig/gcc/config/arm/elf.h gcc-3.4.6/gcc/config/arm/elf.h

    24 --- gcc-3.4.6.orig/gcc/config/arm/elf.h	2004-02-24 15:25:22.000000000 +0100

    25 +++ gcc-3.4.6/gcc/config/arm/elf.h	2007-08-15 23:10:54.000000000 +0200

    26 @@ -46,7 +46,9 @@

    27  

    28  #ifndef SUBTARGET_ASM_FLOAT_SPEC

    29  #define SUBTARGET_ASM_FLOAT_SPEC "\

    30 -%{mapcs-float:-mfloat} %{msoft-float:-mfpu=softfpa}"

    31 +%{mapcs-float:-mfloat} \

    32 +%{mhard-float:-mfpu=fpa} \

    33 +%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"

    34  #endif

    35  

    36  #ifndef ASM_SPEC

    37 @@ -106,12 +108,17 @@

    38  #endif

    39  

    40  #ifndef TARGET_DEFAULT

    41 -#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)

    42 +#define TARGET_DEFAULT		\

    43 +	( ARM_FLAG_SOFT_FLOAT	\

    44 +	| ARM_FLAG_VFP		\

    45 +	| ARM_FLAG_APCS_32	\

    46 +	| ARM_FLAG_APCS_FRAME	\

    47 +	| ARM_FLAG_MMU_TRAPS )

    48  #endif

    49  

    50  #ifndef MULTILIB_DEFAULTS

    51  #define MULTILIB_DEFAULTS \

    52 -  { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" }

    53 +  { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" }

    54  #endif

    55  

    56  #define TARGET_ASM_FILE_START_APP_OFF true

    57 diff -durN gcc-3.4.6.orig/gcc/config/arm/linux-elf.h gcc-3.4.6/gcc/config/arm/linux-elf.h

    58 --- gcc-3.4.6.orig/gcc/config/arm/linux-elf.h	2007-08-15 23:07:00.000000000 +0200

    59 +++ gcc-3.4.6/gcc/config/arm/linux-elf.h	2007-08-15 23:10:54.000000000 +0200

    60 @@ -44,12 +44,26 @@

    61  #define TARGET_LINKER_EMULATION "armelf_linux"

    62  #endif

    63  

    64 -/* Default is to use APCS-32 mode.  */

    65 +/*

    66 + * Default is to use APCS-32 mode with soft-vfp.

    67 + * The old Linux default for floats can be achieved with -mhard-float

    68 + * or with the configure --with-float=hard option.

    69 + * If -msoft-float or --with-float=soft is used then software float 

    70 + * support will be used just like the default but with the legacy

    71 + * big endian word ordering for double float representation instead.

    72 + */

    73  #undef  TARGET_DEFAULT

    74 -#define TARGET_DEFAULT \

    75 -		( ARM_FLAG_APCS_32 | \

    76 -		  ARM_FLAG_MMU_TRAPS | \

    77 -		  TARGET_ENDIAN_DEFAULT )

    78 +#define TARGET_DEFAULT		\

    79 +	( ARM_FLAG_APCS_32	\

    80 +	| ARM_FLAG_SOFT_FLOAT	\

    81 +	| TARGET_ENDIAN_DEFAULT	\

    82 +	| ARM_FLAG_VFP		\

    83 +	| ARM_FLAG_MMU_TRAPS )

    84 +

    85 +#undef  SUBTARGET_EXTRA_ASM_SPEC

    86 +#define SUBTARGET_EXTRA_ASM_SPEC "\

    87 +%{mhard-float:-mfpu=fpa} \

    88 +%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"

    89  

    90  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6

    91  

    92 @@ -57,7 +71,7 @@

    93  

    94  #undef  MULTILIB_DEFAULTS

    95  #define MULTILIB_DEFAULTS \

    96 -	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mapcs-32", "mno-thumb-interwork" }

    97 +	{ "marm", TARGET_ENDIAN_OPTION, "mapcs-32", "mno-thumb-interwork" }

    98  

    99  #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"

   100  

   101 @@ -72,7 +86,7 @@

   102     %{shared:-lc} \

   103     %{!shared:%{profile:-lc_p}%{!profile:-lc}}"

   104  

   105 -#define LIBGCC_SPEC "%{msoft-float:-lfloat} -lgcc"

   106 +#define LIBGCC_SPEC "-lgcc"

   107  

   108  /* Provide a STARTFILE_SPEC appropriate for GNU/Linux.  Here we add

   109     the GNU/Linux magical crtbegin.o file (see crtstuff.c) which

   110 diff -durN gcc-3.4.6.orig/gcc/config/arm/t-linux gcc-3.4.6/gcc/config/arm/t-linux

   111 --- gcc-3.4.6.orig/gcc/config/arm/t-linux	2003-09-20 23:09:07.000000000 +0200

   112 +++ gcc-3.4.6/gcc/config/arm/t-linux	2007-08-15 23:10:54.000000000 +0200

   113 @@ -4,7 +4,10 @@

   114  LIBGCC2_DEBUG_CFLAGS = -g0

   115  

   116  LIB1ASMSRC = arm/lib1funcs.asm

   117 -LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx

   118 +LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx \

   119 +	_negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \

   120 +	_truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \

   121 +	_fixsfsi _fixunssfsi

   122  

   123  # MULTILIB_OPTIONS = mhard-float/msoft-float

   124  # MULTILIB_DIRNAMES = hard-float soft-float

   125 diff -durN gcc-3.4.6.orig/gcc/config/arm/unknown-elf.h gcc-3.4.6/gcc/config/arm/unknown-elf.h

   126 --- gcc-3.4.6.orig/gcc/config/arm/unknown-elf.h	2004-02-24 15:25:22.000000000 +0100

   127 +++ gcc-3.4.6/gcc/config/arm/unknown-elf.h	2007-08-15 23:10:54.000000000 +0200

   128 @@ -30,7 +30,12 @@

   129  

   130  /* Default to using APCS-32 and software floating point.  */

   131  #ifndef TARGET_DEFAULT

   132 -#define TARGET_DEFAULT	(ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)

   133 +#define TARGET_DEFAULT		\

   134 +	( ARM_FLAG_SOFT_FLOAT	\

   135 +	| ARM_FLAG_VFP		\

   136 +	| ARM_FLAG_APCS_32	\

   137 +	| ARM_FLAG_APCS_FRAME	\

   138 +	| ARM_FLAG_MMU_TRAPS )

   139  #endif

   140  

   141  /* Now we define the strings used to build the spec file.  */

   142 diff -durN gcc-3.4.6.orig/gcc/config/arm/xscale-elf.h gcc-3.4.6/gcc/config/arm/xscale-elf.h

   143 --- gcc-3.4.6.orig/gcc/config/arm/xscale-elf.h	2003-07-02 01:26:43.000000000 +0200

   144 +++ gcc-3.4.6/gcc/config/arm/xscale-elf.h	2007-08-15 23:10:54.000000000 +0200

   145 @@ -49,11 +49,12 @@

   146  		     endian, regardless of the endian-ness of the memory

   147  		     system.  */

   148  		     

   149 -#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \

   150 -  %{mhard-float:-mfpu=fpa} \

   151 -  %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"

   152 +#define SUBTARGET_EXTRA_ASM_SPEC "\

   153 +%{!mcpu=*:-mcpu=xscale} \

   154 +%{mhard-float:-mfpu=fpa} \

   155 +%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"

   156  

   157  #ifndef MULTILIB_DEFAULTS

   158  #define MULTILIB_DEFAULTS \

   159 -  { "mlittle-endian", "mno-thumb-interwork", "marm", "msoft-float" }

   160 +  { "mlittle-endian", "mno-thumb-interwork", "marm" }

   161  #endif
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