1/* Definitions for non-Linux based ARM systems using ELF
2   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
3   Free Software Foundation, Inc.
4   Contributed by Catherine Moore <clm@cygnus.com>
5
6   This file is part of GCC.
7
8   GCC is free software; you can redistribute it and/or modify it
9   under the terms of the GNU General Public License as published
10   by the Free Software Foundation; either version 2, or (at your
11   option) any later version.
12
13   GCC is distributed in the hope that it will be useful, but WITHOUT
14   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16   License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program; see the file COPYING.  If not, write to
20   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21   Boston, MA 02110-1301, USA.  */
22
23/* elfos.h should have already been included.  Now just override
24   any conflicting definitions and add any extras.  */
25
26/* Run-time Target Specification.  */
27#ifndef TARGET_VERSION
28#define TARGET_VERSION	fputs (" (ARM/ELF)", stderr);
29#endif
30
31/* Default to using software floating point.  */
32#ifndef TARGET_DEFAULT
33#define TARGET_DEFAULT	(0)
34#endif
35
36/* Now we define the strings used to build the spec file.  */
37#undef  STARTFILE_SPEC
38#define STARTFILE_SPEC	" crti%O%s crtbegin%O%s crt0%O%s"
39
40#undef  ENDFILE_SPEC
41#define ENDFILE_SPEC	"crtend%O%s crtn%O%s"
42
43/* The __USES_INITFINI__ define is tested in newlib/libc/sys/arm/crt0.S
44   to see if it needs to invoked _init() and _fini().  */
45#undef  SUBTARGET_CPP_SPEC
46#define SUBTARGET_CPP_SPEC  "-D__USES_INITFINI__"
47
48#undef  PREFERRED_DEBUGGING_TYPE
49#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
50
51/* Return a nonzero value if DECL has a section attribute.  */
52#define IN_NAMED_SECTION(DECL)						\
53  ((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL)	\
54   && DECL_SECTION_NAME (DECL) != NULL_TREE)
55
56#undef  ASM_OUTPUT_ALIGNED_BSS
57#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN)   	\
58  do									\
59    {									\
60      if (IN_NAMED_SECTION (DECL))					\
61	switch_to_section (get_named_section (DECL, NULL, 0));		\
62      else								\
63	switch_to_section (bss_section);				\
64      									\
65      ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT));	\
66									\
67      last_assemble_variable_decl = DECL;				\
68      ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL);			\
69      ASM_OUTPUT_SKIP (FILE, SIZE ? (int)(SIZE) : 1);			\
70    } 									\
71  while (0)
72
73#undef  ASM_OUTPUT_ALIGNED_DECL_LOCAL
74#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)	\
75  do									\
76    {									\
77      if ((DECL) != NULL && IN_NAMED_SECTION (DECL))			\
78	switch_to_section (get_named_section (DECL, NULL, 0));		\
79      else								\
80	switch_to_section (bss_section);				\
81									\
82      ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT));	\
83      ASM_OUTPUT_LABEL (FILE, NAME);					\
84      fprintf (FILE, "\t.space\t%d\n", SIZE ? (int)(SIZE) : 1);		\
85    }									\
86  while (0)
87
88#ifndef SUBTARGET_CPU_DEFAULT
89#define SUBTARGET_CPU_DEFAULT 		TARGET_CPU_arm7tdmi
90#endif
91
92/* The libgcc udivmod functions may throw exceptions.  If newlib is
93   configured to support long longs in I/O, then printf will depend on
94   udivmoddi4, which will depend on the exception unwind routines,
95   which will depend on abort, which is defined in libc.  */
96#undef LINK_GCC_C_SEQUENCE_SPEC
97#define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L --end-group"
98