| author | Anthony Foiani <anthony.foiani@gmail.com> |
| Thu May 19 23:06:16 2011 +0200 (2011-05-19) | |
| changeset 2461 | ec30b191f0e3 |
| parent 111 | 2e16b9fc302d |
| permissions | -rw-r--r-- |
| yann@111 | 1 |
By Lennert Buytenhek <buytenh@wantstofly.org> |
| yann@111 | 2 |
Adds support for arm*b-linux* big-endian ARM targets |
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|
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See http://gcc.gnu.org/PR16350 |
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|
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--- gcc-4.2.0/gcc/config/arm/linux-elf.h |
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+++ gcc-4.2.0/gcc/config/arm/linux-elf.h |
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@@ -28,19 +28,33 @@ |
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#undef TARGET_VERSION |
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#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
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|
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+/* |
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+ * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-* |
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+ * (big endian) configurations. |
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+ */ |
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+#if TARGET_BIG_ENDIAN_DEFAULT |
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+#define TARGET_ENDIAN_DEFAULT MASK_BIG_END |
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+#define TARGET_ENDIAN_OPTION "mbig-endian" |
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+#define TARGET_LINKER_EMULATION "armelfb_linux" |
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+#else |
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+#define TARGET_ENDIAN_DEFAULT 0 |
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+#define TARGET_ENDIAN_OPTION "mlittle-endian" |
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+#define TARGET_LINKER_EMULATION "armelf_linux" |
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+#endif |
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+ |
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#undef TARGET_DEFAULT_FLOAT_ABI |
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#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD |
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|
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#undef TARGET_DEFAULT |
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-#define TARGET_DEFAULT (0) |
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+#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT) |
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|
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6 |
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|
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-#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p" |
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+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p" |
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|
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#undef MULTILIB_DEFAULTS |
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#define MULTILIB_DEFAULTS \ |
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- { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
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+ { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
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|
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/* Now we define the strings used to build the spec file. */ |
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#undef LIB_SPEC |
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@@ -61,7 +75,7 @@ |
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
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-X \ |
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- %{mbig-endian:-EB}" \
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+ %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
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SUBTARGET_EXTRA_LINK_SPEC |
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|
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#undef LINK_SPEC |
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--- gcc-4.2.0/gcc/config.gcc.orig 2006-09-22 14:53:41.000000000 +0200 |
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+++ gcc-4.2.0/gcc/config.gcc 2006-09-25 10:45:21.000000000 +0200 |
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@@ -696,6 +696,11 @@ |
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tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h" |
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tmake_file="${tmake_file} t-linux arm/t-arm"
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case ${target} in
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+ arm*b-*) |
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+ tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
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+ ;; |
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+ esac |
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+ case ${target} in
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arm*-*-linux-*eabi) |
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tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h" |
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tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi" |