2007-02-13 Paul Brook <paul@codesourcery.com>

	gcc/
	* config.gcc: Add arm*-*-uclinux-*eabi.
	* config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
	(SUBTARGET_EXTRA_LINK_SPEC): Define.
	(STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
	(LINK_GCC_C_SEQUENCE_SPEC): Undef.
	(LINK_SPEC): Define.
	(LIB_SPEC): Define.
	* config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
	register.
	* config/arm/uclinux-eabi.h: New file.
	* config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
	* config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
	based targets.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121902 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 66 insertions, 0 deletions

diff --git a/gcc/config/arm/uclinux-eabi.h b/gcc/config/arm/uclinux-eabi.h
new file mode 100644
index 00000000000..3806bf9bac5
--- /dev/null
+++ b/gcc/config/arm/uclinux-eabi.h
@@ -0,0 +1,66 @@
+/* Definitions for ARM EABI ucLinux
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@codesourcery.com>
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 2, or (at your
+   option) any later version.
+
+   GCC is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* Override settings that are different to the uclinux-elf or
+   bpabi defaults.  */
+
+#undef  TARGET_DEFAULT
+#define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE | MASK_INTERWORK)
+
+/* On EABI GNU/Linux, we want both the BPABI builtins and the
+   GNU/Linux builtins.  */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() 		\
+  do 						\
+    {						\
+      TARGET_BPABI_CPP_BUILTINS();		\
+      builtin_define ("__uClinux__");		\
+      builtin_define ("__gnu_linux__");         \
+      builtin_define_std ("linux");             \
+      builtin_define_std ("unix");              \
+      builtin_assert ("system=linux");          \
+      builtin_assert ("system=unix");           \
+      builtin_assert ("system=posix");          \
+    }						\
+  while (false)
+
+#undef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"
+
+/* We default to the "aapcs-linux" ABI so that enums are int-sized by
+   default.  */
+#undef ARM_DEFAULT_ABI
+#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
+
+/* Clear the instruction cache from `beg' to `end'.  This makes an
+   inline system call to SYS_cacheflush.  */
+#undef CLEAR_INSN_CACHE
+#define CLEAR_INSN_CACHE(BEG, END)					\
+{									\
+  register unsigned long _beg __asm ("a1") = (unsigned long) (BEG);	\
+  register unsigned long _end __asm ("a2") = (unsigned long) (END);	\
+  register unsigned long _flg __asm ("a3") = 0;				\
+  register unsigned long _scno __asm ("r7") = 0xf0002;			\
+  __asm __volatile ("swi 0x0		@ sys_cacheflush"		\
+		    : "=r" (_beg)					\
+		    : "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno));	\
+}
+