2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Dumps global variables and constants as gas assembler.
23 * @author Christian Wuerdig, Matthias Braun
27 #ifndef FIRM_BE_BEGNUAS_H
28 #define FIRM_BE_BEGNUAS_H
32 #include "beemitter.h"
35 GAS_SECTION_TEXT, /**< text section - program code */
36 GAS_SECTION_DATA, /**< data section - arbitrary data */
37 GAS_SECTION_RODATA, /**< rodata section - read-only data */
38 GAS_SECTION_BSS, /**< bss section - zero initialized data */
39 GAS_SECTION_CONSTRUCTORS, /**< ctors section */
40 GAS_SECTION_DESTRUCTORS, /**< dtors section */
41 GAS_SECTION_CSTRING, /**< section for constant strings */
42 GAS_SECTION_PIC_TRAMPOLINES, /**< trampolines for pic codes */
43 GAS_SECTION_PIC_SYMBOLS, /**< contains resolved pic symbols */
44 GAS_SECTION_LAST = GAS_SECTION_PIC_SYMBOLS,
45 GAS_SECTION_TYPE_MASK = 0xFF,
47 GAS_SECTION_FLAG_TLS = 1 << 8, /**< thread local flag */
48 GAS_SECTION_FLAG_COMDAT = 1 << 9 /**< thread local version of _BSS */
51 typedef enum object_file_format_t {
52 OBJECT_FILE_FORMAT_ELF, /**< Executable and Linkable Format (unixes) */
53 OBJECT_FILE_FORMAT_COFF, /**< Common Object File Format (Windows) */
54 OBJECT_FILE_FORMAT_MACH_O, /**< Mach Object File Format (OS/X) */
55 OBJECT_FILE_FORMAT_ELF_SPARC, /**< Sparc variant of ELF */
56 OBJECT_FILE_FORMAT_LAST = OBJECT_FILE_FORMAT_ELF_SPARC
57 } object_file_format_t;
59 /** The variable where the GAS dialect is stored. */
60 extern object_file_format_t be_gas_object_file_format;
61 extern bool be_gas_emit_types;
64 * the .type directive needs to specify @function, #function or %function
65 * depending on the target architecture (yay)
67 extern char be_gas_elf_type_char;
70 * Generate all entities.
71 * @param main_env the main backend environment
73 void be_gas_emit_decls(const be_main_env_t *main_env);
76 * Switch the current output section to the given out.
78 * @param section the new output section
80 void be_gas_emit_switch_section(be_gas_section_t section);
83 * emit assembler instructions necessary before starting function code
85 void be_gas_emit_function_prolog(const ir_entity *entity,
86 unsigned po2alignment);
88 void be_gas_emit_function_epilog(const ir_entity *entity);
90 char const *be_gas_get_private_prefix(void);
93 * emit ld_ident of an entity and performs additional mangling if necessary.
94 * (mangling is necessary for ir_visibility_private for example).
95 * Emits a block label for type_code entities.
97 void be_gas_emit_entity(const ir_entity *entity);
100 * Emit (a private) symbol name for a firm block
102 void be_gas_emit_block_name(const ir_node *block);
105 * Return the label prefix for labeled instructions.
107 const char *be_gas_insn_label_prefix(void);