Move all files into ports/ subdirectory in preparation for merge with glibc glibc-2.16-ports-before-merge

1 files changed, 120 insertions, 0 deletions

diff --git a/ports/sysdeps/arm/sysdep.h b/ports/sysdeps/arm/sysdep.h
new file mode 100644
index 0000000000..7800456f64
--- /dev/null
+++ b/ports/sysdeps/arm/sysdep.h
@@ -0,0 +1,120 @@
+/* Assembler macros for ARM.
+   Copyright (C) 1997, 1998, 2003, 2009, 2010, 2012
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdeps/generic/sysdep.h>
+#include <features.h>
+
+#if (!defined (__ARM_ARCH_2__) && !defined (__ARM_ARCH_3__) \
+     && !defined (__ARM_ARCH_3M__) && !defined (__ARM_ARCH_4__))
+# define __USE_BX__
+#endif
+
+#ifdef	__ASSEMBLER__
+
+/* Syntactic details of assembler.  */
+
+#define ALIGNARG(log2) log2
+/* For ELF we need the `.type' directive to make shared libs work right.  */
+#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,%##typearg;
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+#define PLTJMP(_x)	_x##(PLT)
+
+/* APCS-32 doesn't preserve the condition codes across function call. */
+#ifdef __APCS_32__
+#define LOADREGS(cond, base, reglist...)\
+	ldm##cond	base,reglist
+#ifdef __USE_BX__
+#define RETINSTR(cond, reg)	\
+	bx##cond	reg
+#define DO_RET(_reg)		\
+	bx _reg
+#else
+#define RETINSTR(cond, reg)	\
+	mov##cond	pc, reg
+#define DO_RET(_reg)		\
+	mov pc, _reg
+#endif
+#else  /* APCS-26 */
+#define LOADREGS(cond, base, reglist...)\
+	ldm##cond	base,reglist^
+#define RETINSTR(cond, reg)	\
+	mov##cond##s	pc, reg
+#define DO_RET(_reg)		\
+	movs pc, _reg
+#endif
+
+/* Define an entry point visible from C.  */
+#define	ENTRY(name)							      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),function)			      \
+  .align ALIGNARG(4);							      \
+  C_LABEL(name)								      \
+  .cfi_sections .debug_frame;						      \
+  cfi_startproc;							      \
+  CALL_MCOUNT
+
+#undef	END
+#define END(name)							      \
+  cfi_endproc;								      \
+  ASM_SIZE_DIRECTIVE(name)
+
+/* If compiled for profiling, call `mcount' at the start of each function.  */
+#ifdef	PROF
+/* Call __gnu_mcount_nc if GCC >= 4.4.  */
+#if __GNUC_PREREQ(4,4)
+#define CALL_MCOUNT \
+  str	lr,[sp, #-4]!; \
+  cfi_adjust_cfa_offset (4); \
+  cfi_rel_offset (lr, 0); \
+  bl PLTJMP(mcount); \
+  cfi_adjust_cfa_offset (-4); \
+  cfi_restore (lr)
+#else /* else call _mcount */
+#define CALL_MCOUNT \
+  str	lr,[sp, #-4]!; \
+  cfi_adjust_cfa_offset (4); \
+  cfi_rel_offset (lr, 0); \
+  bl PLTJMP(mcount); \
+  ldr lr, [sp], #4; \
+  cfi_adjust_cfa_offset (-4); \
+  cfi_restore (lr)
+#endif
+#else
+#define CALL_MCOUNT		/* Do nothing.  */
+#endif
+
+/* Since C identifiers are not normally prefixed with an underscore
+   on this system, the asm identifier `syscall_error' intrudes on the
+   C name space.  Make sure we use an innocuous name.  */
+#define	syscall_error	__syscall_error
+#if __GNUC_PREREQ(4,4)
+#define mcount		__gnu_mcount_nc
+#else
+#define mcount		_mcount
+#endif
+
+/* Tag_ABI_align8_preserved: This code preserves 8-byte
+   alignment in any callee.  */
+	.eabi_attribute 25, 1
+/* Tag_ABI_align8_needed: This code may require 8-byte alignment from
+   the caller.  */
+	.eabi_attribute 24, 1
+
+#endif	/* __ASSEMBLER__ */