patches/gcc/4.0.4/190-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 17:54:21 2011 +0200 (2011-07-17)
changeset 2888 dd71df95903a
parent 1 eeea35fbf182
permissions -rw-r--r--
cc/gcc: pass the companion libs prefix to cc_core

In case of canadian-cross, the companion libraries are not the same for
the core cc (they run on 'build') as they are for the final cc (they run
on 'host').

Prepare for this differentiation (coming later), while retaining the
current behavior (to use the same compblibs).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
yann@1
     1
diff -dur gcc-4.0.4.orig/gcc/config/arm/linux-elf.h gcc-4.0.4/gcc/config/arm/linux-elf.h
yann@1
     2
--- gcc-4.0.4.orig/gcc/config/arm/linux-elf.h	2007-02-02 19:24:50.000000000 +0100
yann@1
     3
+++ gcc-4.0.4/gcc/config/arm/linux-elf.h	2007-02-02 19:26:12.000000000 +0100
yann@1
     4
@@ -31,19 +31,33 @@
yann@1
     5
 /* Do not assume anything about header files.  */
yann@1
     6
 #define NO_IMPLICIT_EXTERN_C
yann@1
     7
 
yann@1
     8
+/*
yann@1
     9
+ * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*
yann@1
    10
+ * (big endian) configurations.
yann@1
    11
+ */
yann@1
    12
+#if TARGET_BIG_ENDIAN_DEFAULT
yann@1
    13
+#define TARGET_ENDIAN_DEFAULT ARM_FLAG_BIG_END
yann@1
    14
+#define TARGET_ENDIAN_OPTION "mbig-endian"
yann@1
    15
+#define TARGET_LINKER_EMULATION "armelfb_linux"
yann@1
    16
+#else
yann@1
    17
+#define TARGET_ENDIAN_DEFAULT 0
yann@1
    18
+#define TARGET_ENDIAN_OPTION "mlittle-endian"
yann@1
    19
+#define TARGET_LINKER_EMULATION "armelf_linux"
yann@1
    20
+#endif
yann@1
    21
+
yann@1
    22
 #undef  TARGET_DEFAULT_FLOAT_ABI
yann@1
    23
 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
yann@1
    24
 
yann@1
    25
 #undef  TARGET_DEFAULT
yann@1
    26
-#define TARGET_DEFAULT (0)
yann@1
    27
+#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
yann@1
    28
 
yann@1
    29
 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
yann@1
    30
 
yann@1
    31
-#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
yann@1
    32
+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
yann@1
    33
 
yann@1
    34
 #undef  MULTILIB_DEFAULTS
yann@1
    35
 #define MULTILIB_DEFAULTS \
yann@1
    36
-	{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
yann@1
    37
+	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
yann@1
    38
 
yann@1
    39
 /* The GNU C++ standard library requires that these macros be defined.  */
yann@1
    40
 #undef CPLUSPLUS_CPP_SPEC
yann@1
    41
@@ -95,7 +109,7 @@
yann@1
    42
    %{rdynamic:-export-dynamic} \
yann@1
    43
    %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "} \
yann@1
    44
    -X \
yann@1
    45
-   %{mbig-endian:-EB}" \
yann@1
    46
+   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
yann@1
    47
    SUBTARGET_EXTRA_LINK_SPEC
yann@1
    48
 
yann@1
    49
 #define TARGET_OS_CPP_BUILTINS()		\
yann@1
    50
Only in gcc-4.0.4/gcc/config/arm: linux-elf.h.orig
yann@1
    51
diff -dur gcc-4.0.4.orig/gcc/config.gcc gcc-4.0.4/gcc/config.gcc
yann@1
    52
--- gcc-4.0.4.orig/gcc/config.gcc	2007-02-02 19:24:50.000000000 +0100
yann@1
    53
+++ gcc-4.0.4/gcc/config.gcc	2007-02-02 19:26:12.000000000 +0100
yann@1
    54
@@ -672,6 +672,11 @@
yann@1
    55
 	;;
yann@1
    56
 arm*-*-linux*)			# ARM GNU/Linux with ELF
yann@1
    57
 	tm_file="dbxelf.h elfos.h linux.h arm/elf.h  arm/linux-gas.h arm/linux-elf.h arm/aout.h arm/arm.h"
yann@1
    58
+	case $target in
yann@1
    59
+	arm*b-*)
yann@1
    60
+		tm_defines="TARGET_BIG_ENDIAN_DEFAULT=1 $tm_defines"
yann@1
    61
+		;;
yann@1
    62
+	esac
yann@1
    63
 	tmake_file="${tmake_file} arm/t-arm arm/t-linux"
yann@1
    64
 	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
yann@1
    65
 	gnu_ld=yes