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comparison gcc/config/pa/elf.h @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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children 04ced10e8804
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-1:000000000000 0:a06113de4d67
1 /* Definitions for ELF assembler support.
2 Copyright (C) 1999, 2003, 2005, 2007 Free Software Foundation, Inc.
3
4 This file is part of GCC.
5
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
10
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
19
20 /* So we can conditionalize small amounts of code in pa.c or pa.md. */
21 #define OBJ_ELF
22
23 #define ENDFILE_SPEC "crtend.o%s"
24
25 #define STARTFILE_SPEC "%{!shared: \
26 %{!symbolic: \
27 %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\
28 crtbegin.o%s"
29
30 #define TEXT_SECTION_ASM_OP "\t.text"
31 #define DATA_SECTION_ASM_OP "\t.data"
32 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
33
34 #define TARGET_ASM_FILE_START pa_elf_file_start
35
36 #undef ASM_DECLARE_FUNCTION_NAME
37 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
38 do { \
39 if (TREE_PUBLIC (DECL)) \
40 { \
41 fputs ("\t.EXPORT ", FILE); \
42 assemble_name (FILE, NAME); \
43 fputs (",ENTRY\n", FILE); \
44 } \
45 } while (0)
46
47 /* This is how to output a command to make the user-level label
48 named NAME defined for reference from other files. We use
49 assemble_name_raw instead of assemble_name since a symbol in
50 a .IMPORT directive that isn't otherwise referenced is not
51 placed in the symbol table of the assembled object.
52
53 Failure to import a function reference can cause the HP linker
54 to segmentation fault!
55
56 Note that the SOM based tools need the symbol imported as a
57 CODE symbol, while the ELF based tools require the symbol to
58 be imported as an ENTRY symbol. */
59
60 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
61 pa_hpux_asm_output_external ((FILE), (DECL), (NAME))
62 #define ASM_OUTPUT_EXTERNAL_REAL(FILE, DECL, NAME) \
63 do { fputs ("\t.IMPORT ", FILE); \
64 assemble_name_raw (FILE, NAME); \
65 if (FUNCTION_NAME_P (NAME)) \
66 fputs (",ENTRY\n", FILE); \
67 else \
68 fputs (",DATA\n", FILE); \
69 } while (0)
70
71 /* The bogus HP assembler requires ALL external references to be
72 "imported", even library calls. They look a bit different, so
73 here's this macro.
74
75 Also note not all libcall names are passed to
76 targetm.encode_section_info (__main for example). To make sure all
77 libcall names have section info recorded in them, we do it here. */
78
79 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
80 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, RTL) \
81 do { fputs ("\t.IMPORT ", FILE); \
82 if (!function_label_operand (RTL, VOIDmode)) \
83 hppa_encode_label (RTL); \
84 assemble_name (FILE, XSTR ((RTL), 0)); \
85 fputs (",ENTRY\n", FILE); \
86 } while (0)
87
88 /* Biggest alignment supported by the object file format of this
89 machine. Use this macro to limit the alignment which can be
90 specified using the `__attribute__ ((aligned (N)))' construct. If
91 not defined, the default value is `BIGGEST_ALIGNMENT'. */
92 #define MAX_OFILE_ALIGNMENT (32768 * 8)