/* Declarations for insn-output.c. These functions are defined in recog.c,
final.c, and varasm.c.
Copyright (C) 1987, 1991, 1994, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#ifndef GCC_OUTPUT_H
#define GCC_OUTPUT_H
get its actual length. Otherwise, get its maximum length. */
extern int get_attr_length (rtx);
+/* Obtain the current length of an insn. If branch shortening has been done,
+ get its actual length. Otherwise, get its minimum length. */
+extern int get_attr_min_length (rtx);
+
/* Make a pass over all insns and compute their actual lengths by shortening
any branches of variable length if possible. */
extern void shorten_branches (rtx);
extern void final_end_function (void);
/* Output assembler code for some insns: all or part of a function. */
-extern void final (rtx, FILE *, int, int);
+extern void final (rtx, FILE *, int);
+
+/* The final scan for one insn, INSN. Args are same as in `final', except
+ that INSN is the insn being scanned. Value returned is the next insn to
+ be scanned. */
+extern rtx final_scan_insn (rtx, FILE *, int, int, int *);
/* Replace a SUBREG with a REG or a MEM, based on the thing it is a
subreg of. */
/* Locate the proper template for the given insn-code. */
extern const char *get_insn_template (int, rtx);
-/* Add function NAME to the weak symbols list. VALUE is a weak alias
- associated with NAME. */
-extern int add_weak (tree, const char *, const char *);
-
/* Functions in flow.c */
-extern void allocate_for_life_analysis (void);
-extern int regno_uninitialized (unsigned int);
extern int regno_clobbered_at_setjmp (int);
-extern void find_basic_blocks (rtx, int, FILE *);
-extern bool cleanup_cfg (int);
-extern bool delete_unreachable_blocks (void);
-extern void check_function_return_warnings (void);
/* Functions in varasm.c. */
/* Tell assembler to switch to text section. */
extern void text_section (void);
+/* Tell assembler to switch to unlikely-to-be-executed text section. */
+extern void unlikely_text_section (void);
+
/* Tell assembler to switch to data section. */
extern void data_section (void);
/* Determine if we're in the text section. */
extern int in_text_section (void);
+/* Determine if we're in the unlikely-to-be-executed text section. */
+extern int in_unlikely_text_section (void);
+
#ifdef CTORS_SECTION_ASM_OP
extern void ctors_section (void);
#endif
/* Tell assembler to switch to the section for function DECL. */
extern void function_section (tree);
+/* Tell assembler to switch to the most recently used text section. */
+extern void current_function_section (tree);
+
/* Tell assembler to switch to the section for string merging. */
extern void mergeable_string_section (tree, unsigned HOST_WIDE_INT,
unsigned int);
/* Assemble an alignment pseudo op for an ALIGN-bit boundary. */
extern void assemble_align (int);
-extern void assemble_eh_align (int);
/* Assemble a string constant with the specified C string as contents. */
extern void assemble_string (const char *, int);
/* Assemble a label named NAME. */
extern void assemble_label (const char *);
-extern void assemble_eh_label (const char *);
-/* Output to FILE a reference to the assembler name of a C-level name NAME.
- If NAME starts with a *, the rest of NAME is output verbatim.
- Otherwise NAME is transformed in an implementation-defined way
- (usually by the addition of an underscore).
- Many macros in the tm file are defined to call this function. */
+/* Output to FILE (an assembly file) a reference to NAME. If NAME
+ starts with a *, the rest of NAME is output verbatim. Otherwise
+ NAME is transformed in a target-specific way (usually by the
+ addition of an underscore). */
+extern void assemble_name_raw (FILE *, const char *);
+
+/* Like assemble_name_raw, but should be used when NAME might refer to
+ an entity that is also represented as a tree (like a function or
+ variable). If NAME does refer to such an entity, that entity will
+ be marked as referenced. */
extern void assemble_name (FILE *, const char *);
/* Return the assembler directive for creating a given kind of integer
/* Assemble the integer constant X into an object of SIZE bytes. ALIGN is
the alignment of the integer in bits. Return 1 if we were able to output
- the constant, otherwise 0. If FORCE is nonzero, abort if we can't output
- the constant. */
+ the constant, otherwise 0. If FORCE is nonzero the constant must
+ be outputable. */
extern bool assemble_integer (rtx, unsigned, unsigned, int);
/* An interface to assemble_integer for the common case in which a value is
extern int current_function_is_leaf;
-/* Nonzero if function being compiled doesn't contain any instructions
- that can throw an exception. This is set prior to final. */
-
-extern int current_function_nothrow;
-
/* Nonzero if function being compiled doesn't modify the stack pointer
(ignoring the prologue and epilogue). This is only valid after
life_analysis has run. */
/* Default file in which to dump debug output. */
#ifdef BUFSIZ
-extern FILE *rtl_dump_file;
+extern FILE *dump_file;
#endif
/* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */
extern rtx current_output_insn;
/* Nonzero while outputting an `asm' with operands.
- This means that inconsistencies are the user's fault, so don't abort.
+ This means that inconsistencies are the user's fault, so don't die.
The precise value is the insn being output, to pass to error_for_asm. */
extern rtx this_is_asm_operands;
+/* Carry information from ASM_DECLARE_OBJECT_NAME
+ to ASM_FINISH_DECLARE_OBJECT. */
+extern int size_directive_output;
+extern tree last_assemble_variable_decl;
+
+enum in_section { no_section, in_text, in_unlikely_executed_text, in_data,
+ in_named
+#ifdef BSS_SECTION_ASM_OP
+ , in_bss
+#endif
+#ifdef CTORS_SECTION_ASM_OP
+ , in_ctors
+#endif
+#ifdef DTORS_SECTION_ASM_OP
+ , in_dtors
+#endif
+#ifdef READONLY_DATA_SECTION_ASM_OP
+ , in_readonly_data
+#endif
+#ifdef EXTRA_SECTIONS
+ , EXTRA_SECTIONS
+#endif
+};
+
+extern const char *last_text_section_name;
+extern enum in_section last_text_section;
+extern bool first_function_block_is_cold;
+
/* Decide whether DECL needs to be in a writable section.
RELOC is the same as for SELECT_SECTION. */
extern bool decl_readonly_section (tree, int);
#define SECTION_NOTYPE 0x80000 /* don't output @progbits */
#define SECTION_MACH_DEP 0x100000 /* subsequent bits reserved for target */
-extern unsigned int get_named_section_flags (const char *);
+/* A helper function for default_elf_select_section and
+ default_elf_unique_section. Categorizes the DECL. */
+
+enum section_category
+{
+ SECCAT_TEXT,
+
+ SECCAT_RODATA,
+ SECCAT_RODATA_MERGE_STR,
+ SECCAT_RODATA_MERGE_STR_INIT,
+ SECCAT_RODATA_MERGE_CONST,
+ SECCAT_SRODATA,
+
+ SECCAT_DATA,
+
+ /* To optimize loading of shared programs, define following subsections
+ of data section:
+ _REL Contains data that has relocations, so they get grouped
+ together and dynamic linker will visit fewer pages in memory.
+ _RO Contains data that is otherwise read-only. This is useful
+ with prelinking as most relocations won't be dynamically
+ linked and thus stay read only.
+ _LOCAL Marks data containing relocations only to local objects.
+ These relocations will get fully resolved by prelinking. */
+ SECCAT_DATA_REL,
+ SECCAT_DATA_REL_LOCAL,
+ SECCAT_DATA_REL_RO,
+ SECCAT_DATA_REL_RO_LOCAL,
+
+ SECCAT_SDATA,
+ SECCAT_TDATA,
+
+ SECCAT_BSS,
+ SECCAT_SBSS,
+ SECCAT_TBSS
+};
+
+
extern bool set_named_section_flags (const char *, unsigned int);
-extern void named_section_flags (const char *, unsigned int);
+#define named_section_flags(NAME, FLAGS) \
+ named_section_real((NAME), (FLAGS), /*decl=*/NULL_TREE)
+extern void named_section_real (const char *, unsigned int, tree);
extern bool named_section_first_declaration (const char *);
extern unsigned int default_section_type_flags (tree, const char *, int);
extern unsigned int default_section_type_flags_1 (tree, const char *, int, int);
-extern void default_no_named_section (const char *, unsigned int);
-extern void default_elf_asm_named_section (const char *, unsigned int);
-extern void default_coff_asm_named_section (const char *, unsigned int);
-extern void default_pe_asm_named_section (const char *, unsigned int);
+extern void default_no_named_section (const char *, unsigned int, tree);
+extern void default_elf_asm_named_section (const char *, unsigned int, tree);
+extern enum section_category categorize_decl_for_section (tree, int, int);
+extern void default_coff_asm_named_section (const char *, unsigned int, tree);
+extern void default_pe_asm_named_section (const char *, unsigned int, tree);
extern void default_stabs_asm_out_destructor (rtx, int);
extern void default_named_section_asm_out_destructor (rtx, int);
unsigned HOST_WIDE_INT, int);
extern void default_unique_section (tree, int);
extern void default_unique_section_1 (tree, int, int);
+extern void default_function_rodata_section (tree);
+extern void default_no_function_rodata_section (tree);
extern void default_select_rtx_section (enum machine_mode, rtx,
unsigned HOST_WIDE_INT);
extern void default_elf_select_rtx_section (enum machine_mode, rtx,
extern bool default_binds_local_p (tree);
extern bool default_binds_local_p_1 (tree, int);
extern void default_globalize_label (FILE *, const char *);
+extern void default_emit_unwind_label (FILE *, tree, int, int);
extern void default_internal_label (FILE *, const char *, unsigned long);
extern void default_file_start (void);
extern void file_end_indicate_exec_stack (void);
extern int default_address_cost (rtx);
+/* When performing hot/cold basic block partitioning, insert note in
+ instruction stream indicating boundary between hot and cold sections. */
+extern void insert_section_boundary_note (void);
+
+/* dbxout helper functions */
+#if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO
+
+extern void dbxout_int (int);
+extern void dbxout_stabd (int, int);
+extern void dbxout_begin_stabn (int);
+extern void dbxout_begin_stabn_sline (int);
+extern void dbxout_begin_empty_stabs (int);
+extern void dbxout_begin_simple_stabs (const char *, int);
+extern void dbxout_begin_simple_stabs_desc (const char *, int, int);
+
+extern void dbxout_stab_value_zero (void);
+extern void dbxout_stab_value_label (const char *);
+extern void dbxout_stab_value_label_diff (const char *, const char *);
+extern void dbxout_stab_value_internal_label (const char *, int *);
+extern void dbxout_stab_value_internal_label_diff (const char *, int *,
+ const char *);
+
+#endif
+
#endif /* ! GCC_OUTPUT_H */
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