pe.h revision 169689 
1/* Definitions of target machine for GNU compiler, for ARM with PE obj format.
2   Copyright (C) 1995, 1996, 1999, 2000, 2002, 2003, 2004, 2005
3   Free Software Foundation, Inc.
4   Contributed by Doug Evans (dje@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 GCC; 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/* Enable PE specific code.  */
24#define ARM_PE		1
25
26#define ARM_PE_FLAG_CHAR '@'
27
28/* Ensure that @x. will be stripped from the function name.  */
29#undef SUBTARGET_NAME_ENCODING_LENGTHS
30#define SUBTARGET_NAME_ENCODING_LENGTHS  \
31  case ARM_PE_FLAG_CHAR: return 3;
32
33#undef  USER_LABEL_PREFIX
34#define USER_LABEL_PREFIX "_"
35
36
37/* Run-time Target Specification.  */
38#undef  TARGET_VERSION
39#define TARGET_VERSION fputs (" (ARM/pe)", stderr)
40
41/* Get tree.c to declare a target-specific specialization of
42   merge_decl_attributes.  */
43#define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1
44
45#undef  SUBTARGET_CPP_SPEC
46#define SUBTARGET_CPP_SPEC "-D__pe__"
47
48#undef  TARGET_DEFAULT
49#define TARGET_DEFAULT	(MASK_NOP_FUN_DLLIMPORT)
50
51#undef  MULTILIB_DEFAULTS
52#define MULTILIB_DEFAULTS \
53  { "marm", "mlittle-endian", "msoft-float", "mno-thumb-interwork" }
54
55#undef  WCHAR_TYPE
56#define WCHAR_TYPE 	"short unsigned int"
57#undef  WCHAR_TYPE_SIZE
58#define WCHAR_TYPE_SIZE 16
59
60/* r11 is fixed.  */
61#undef  SUBTARGET_CONDITIONAL_REGISTER_USAGE
62#define SUBTARGET_CONDITIONAL_REGISTER_USAGE \
63  fixed_regs [11] = 1; \
64  call_used_regs [11] = 1;
65
66
67/* PE/COFF uses explicit import from shared libraries.  */
68#define MULTIPLE_SYMBOL_SPACES 1
69
70#define TARGET_ASM_UNIQUE_SECTION arm_pe_unique_section
71#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
72
73#define SUPPORTS_ONE_ONLY 1
74
75/* Switch into a generic section.  */
76#undef  TARGET_ASM_NAMED_SECTION
77#define TARGET_ASM_NAMED_SECTION  default_pe_asm_named_section
78
79#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
80
81/* Output a reference to a label.  */
82#undef  ASM_OUTPUT_LABELREF
83#define ASM_OUTPUT_LABELREF(STREAM, NAME)  \
84  asm_fprintf (STREAM, "%U%s", arm_strip_name_encoding (NAME))
85
86/* Output a function definition label.  */
87#undef  ASM_DECLARE_FUNCTION_NAME
88#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL)   	\
89  do								\
90    {								\
91      if (arm_dllexport_name_p (NAME))				\
92	{							\
93	  drectve_section ();					\
94	  fprintf (STREAM, "\t.ascii \" -export:%s\"\n",	\
95		   arm_strip_name_encoding (NAME));		\
96	  switch_to_section (function_section (DECL));		\
97	}							\
98      ARM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL);		\
99      if (TARGET_THUMB)						\
100	fprintf (STREAM, "\t.code 16\n");			\
101      ASM_OUTPUT_LABEL (STREAM, NAME);				\
102    }								\
103  while (0)
104
105/* Output a common block.  */
106#undef  ASM_OUTPUT_COMMON
107#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)	\
108  do							\
109    {							\
110      if (arm_dllexport_name_p (NAME))			\
111	{						\
112	  drectve_section ();				\
113	  fprintf ((STREAM), "\t.ascii \" -export:%s\"\n",\
114		   arm_strip_name_encoding (NAME));	\
115	}						\
116      if (! arm_dllimport_name_p (NAME))		\
117	{						\
118	  fprintf ((STREAM), "\t.comm\t"); 		\
119	  assemble_name ((STREAM), (NAME));		\
120	  asm_fprintf ((STREAM), ", %d\t%@ %d\n",	\
121 		   (int)(ROUNDED), (int)(SIZE));	\
122	}						\
123    }							\
124  while (0)
125
126/* Output the label for an initialized variable.  */
127#undef  ASM_DECLARE_OBJECT_NAME
128#define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) 	\
129  do							\
130    {							\
131      if (arm_dllexport_name_p (NAME))			\
132	{						\
133	  section *save_section = in_section;		\
134	  drectve_section ();				\
135	  fprintf (STREAM, "\t.ascii \" -export:%s\"\n",\
136		   arm_strip_name_encoding (NAME));	\
137	  switch_to_section (save_section);		\
138	}						\
139      ASM_OUTPUT_LABEL ((STREAM), (NAME));		\
140    }							\
141  while (0)
142
143/* Support the ctors/dtors and other sections.  */
144
145#define DRECTVE_SECTION_ASM_OP	"\t.section .drectve"
146
147#define drectve_section() \
148  (fprintf (asm_out_file, "%s\n", DRECTVE_SECTION_ASM_OP), \
149   in_section = NULL)
150