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jeremybenn |
/* Declarations for insn-output.c. These functions are defined in recog.c,
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final.c, and varasm.c.
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Copyright (C) 1987, 1991, 1994, 1997, 1998, 1999, 2000, 2001, 2002,
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2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_OUTPUT_H
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#define GCC_OUTPUT_H
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/* Initialize data in final at the beginning of a compilation. */
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extern void init_final (const char *);
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/* Enable APP processing of subsequent output.
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Used before the output from an `asm' statement. */
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extern void app_enable (void);
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/* Disable APP processing of subsequent output.
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Called from varasm.c before most kinds of output. */
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extern void app_disable (void);
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/* Return the number of slots filled in the current
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delayed branch sequence (we don't count the insn needing the
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delay slot). Zero if not in a delayed branch sequence. */
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extern int dbr_sequence_length (void);
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/* Indicate that branch shortening hasn't yet been done. */
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extern void init_insn_lengths (void);
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/* Obtain the current length of an insn. If branch shortening has been done,
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get its actual length. Otherwise, get its maximum length. */
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extern int get_attr_length (rtx);
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/* Obtain the current length of an insn. If branch shortening has been done,
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get its actual length. Otherwise, get its minimum length. */
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extern int get_attr_min_length (rtx);
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/* Make a pass over all insns and compute their actual lengths by shortening
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any branches of variable length if possible. */
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extern void shorten_branches (rtx);
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/* Output assembler code for the start of a function,
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and initialize some of the variables in this file
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for the new function. The label for the function and associated
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assembler pseudo-ops have already been output in
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`assemble_start_function'. */
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extern void final_start_function (rtx, FILE *, int);
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/* Output assembler code for the end of a function.
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For clarity, args are same as those of `final_start_function'
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even though not all of them are needed. */
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extern void final_end_function (void);
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/* Output assembler code for some insns: all or part of a function. */
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extern void final (rtx, FILE *, int);
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/* The final scan for one insn, INSN. Args are same as in `final', except
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that INSN is the insn being scanned. Value returned is the next insn to
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be scanned. */
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extern rtx final_scan_insn (rtx, FILE *, int, int, int *);
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/* Replace a SUBREG with a REG or a MEM, based on the thing it is a
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subreg of. */
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extern rtx alter_subreg (rtx *);
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/* Report inconsistency between the assembler template and the operands.
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In an `asm', it's the user's fault; otherwise, the compiler's fault. */
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extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1;
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/* Output a string of assembler code, substituting insn operands.
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Defined in final.c. */
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extern void output_asm_insn (const char *, rtx *);
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/* Compute a worst-case reference address of a branch so that it
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can be safely used in the presence of aligned labels.
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Defined in final.c. */
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extern int insn_current_reference_address (rtx);
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/* Find the alignment associated with a CODE_LABEL.
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Defined in final.c. */
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extern int label_to_alignment (rtx);
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/* Find the alignment maximum skip associated with a CODE_LABEL.
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Defined in final.c. */
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extern int label_to_max_skip (rtx);
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/* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */
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extern void output_asm_label (rtx);
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/* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */
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extern void mark_symbol_refs_as_used (rtx);
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/* Print a memory reference operand for address X
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using machine-dependent assembler syntax. */
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extern void output_address (rtx);
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/* Print an integer constant expression in assembler syntax.
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Addition and subtraction are the only arithmetic
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that may appear in these expressions. */
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extern void output_addr_const (FILE *, rtx);
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/* Output a string of assembler code, substituting numbers, strings
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and fixed syntactic prefixes. */
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#if GCC_VERSION >= 3004
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#define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m)
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/* This is a magic identifier which allows GCC to figure out the type
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of HOST_WIDE_INT for %wd specifier checks. You must issue this
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typedef before using the __asm_fprintf__ format attribute. */
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typedef HOST_WIDE_INT __gcc_host_wide_int__;
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#else
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#define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m)
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#endif
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extern void asm_fprintf (FILE *file, const char *p, ...)
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ATTRIBUTE_ASM_FPRINTF(2, 3);
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/* Split up a CONST_DOUBLE or integer constant rtx into two rtx's for single
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words. */
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extern void split_double (rtx, rtx *, rtx *);
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/* Return nonzero if this function has no function calls. */
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extern int leaf_function_p (void);
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/* Return 1 if branch is a forward branch.
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Uses insn_shuid array, so it works only in the final pass. May be used by
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output templates to add branch prediction hints, for example. */
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extern int final_forward_branch_p (rtx);
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/* Return 1 if this function uses only the registers that can be
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safely renumbered. */
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extern int only_leaf_regs_used (void);
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/* Scan IN_RTX and its subexpressions, and renumber all regs into those
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available in leaf functions. */
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extern void leaf_renumber_regs_insn (rtx);
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/* Locate the proper template for the given insn-code. */
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extern const char *get_insn_template (int, rtx);
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/* Functions in varasm.c. */
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/* Declare DECL to be a weak symbol. */
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extern void declare_weak (tree);
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/* Merge weak status. */
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extern void merge_weak (tree, tree);
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/* Emit any pending weak declarations. */
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extern void weak_finish (void);
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/* Emit any pending emutls declarations and initializations. */
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extern void emutls_finish (void);
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/* Decode an `asm' spec for a declaration as a register name.
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Return the register number, or -1 if nothing specified,
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or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized,
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or -3 if ASMSPEC is `cc' and is not recognized,
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or -4 if ASMSPEC is `memory' and is not recognized.
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Accept an exact spelling or a decimal number.
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Prefixes such as % are optional. */
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extern int decode_reg_name (const char *);
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extern void assemble_alias (tree, tree);
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extern void default_assemble_visibility (tree, int);
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/* Output a string of literal assembler code
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for an `asm' keyword used between functions. */
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extern void assemble_asm (tree);
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/* Output assembler code for the constant pool of a function and associated
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with defining the name of the function. DECL describes the function.
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NAME is the function's name. For the constant pool, we use the current
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constant pool data. */
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extern void assemble_start_function (tree, const char *);
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/* Output assembler code associated with defining the size of the
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function. DECL describes the function. NAME is the function's name. */
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extern void assemble_end_function (tree, const char *);
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/* Assemble everything that is needed for a variable or function declaration.
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Not used for automatic variables, and not used for function definitions.
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Should not be called for variables of incomplete structure type.
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TOP_LEVEL is nonzero if this variable has file scope.
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AT_END is nonzero if this is the special handling, at end of compilation,
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to define things that have had only tentative definitions.
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DONT_OUTPUT_DATA if nonzero means don't actually output the
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initial value (that will be done by the caller). */
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extern void assemble_variable (tree, int, int, int);
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/* Compute the alignment of variable specified by DECL.
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DONT_OUTPUT_DATA is from assemble_variable. */
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extern void align_variable (tree decl, bool dont_output_data);
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/* Queue for outputting something to declare an external symbol to the
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assembler. (Most assemblers don't need this, so we normally output
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nothing.) Do nothing if DECL is not external. */
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extern void assemble_external (tree);
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/* Assemble code to leave SIZE bytes of zeros. */
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extern void assemble_zeros (unsigned HOST_WIDE_INT);
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/* Assemble an alignment pseudo op for an ALIGN-bit boundary. */
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extern void assemble_align (int);
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/* Assemble a string constant with the specified C string as contents. */
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extern void assemble_string (const char *, int);
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/* Similar, for calling a library function FUN. */
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extern void assemble_external_libcall (rtx);
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/* Assemble a label named NAME. */
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extern void assemble_label (const char *);
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/* Output to FILE (an assembly file) a reference to NAME. If NAME
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starts with a *, the rest of NAME is output verbatim. Otherwise
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NAME is transformed in a target-specific way (usually by the
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addition of an underscore). */
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extern void assemble_name_raw (FILE *, const char *);
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/* Like assemble_name_raw, but should be used when NAME might refer to
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an entity that is also represented as a tree (like a function or
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variable). If NAME does refer to such an entity, that entity will
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be marked as referenced. */
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extern void assemble_name (FILE *, const char *);
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/* Return the assembler directive for creating a given kind of integer
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object. SIZE is the number of bytes in the object and ALIGNED_P
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indicates whether it is known to be aligned. Return NULL if the
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assembly dialect has no such directive.
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The returned string should be printed at the start of a new line and
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be followed immediately by the object's initial value. */
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extern const char *integer_asm_op (int, int);
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/* Use directive OP to assemble an integer object X. Print OP at the
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start of the line, followed immediately by the value of X. */
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extern void assemble_integer_with_op (const char *, rtx);
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/* The default implementation of the asm_out.integer target hook. */
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extern bool default_assemble_integer (rtx, unsigned int, int);
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/* Assemble the integer constant X into an object of SIZE bytes. ALIGN is
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the alignment of the integer in bits. Return 1 if we were able to output
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the constant, otherwise 0. If FORCE is nonzero the constant must
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be outputable. */
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extern bool assemble_integer (rtx, unsigned, unsigned, int);
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/* An interface to assemble_integer for the common case in which a value is
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fully aligned and must be printed. VALUE is the value of the integer
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object and SIZE is the number of bytes it contains. */
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#define assemble_aligned_integer(SIZE, VALUE) \
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assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1)
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#ifdef REAL_VALUE_TYPE_SIZE
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/* Assemble the floating-point constant D into an object of size MODE. */
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extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned);
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#endif
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/* Write the address of the entity given by SYMBOL to SEC. */
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extern void assemble_addr_to_section (rtx, section *);
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/* Return the size of the constant pool. */
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extern int get_pool_size (void);
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#ifdef HAVE_peephole
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extern rtx peephole (rtx);
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#endif
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extern void output_shared_constant_pool (void);
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extern void output_object_blocks (void);
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/* Whether a constructor CTOR is a valid static constant initializer if all
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its elements are. This used to be internal to initializer_constant_valid_p
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and has been exposed to let other functions like categorize_ctor_elements
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evaluate the property while walking a constructor for other purposes. */
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extern bool constructor_static_from_elts_p (const_tree);
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/* Return nonzero if VALUE is a valid constant-valued expression
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for use in initializing a static variable; one that can be an
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element of a "constant" initializer.
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Return null_pointer_node if the value is absolute;
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if it is relocatable, return the variable that determines the relocation.
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We assume that VALUE has been folded as much as possible;
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therefore, we do not need to check for such things as
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arithmetic-combinations of integers. */
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extern tree initializer_constant_valid_p (tree, tree);
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/* Return true if VALUE is a valid constant-valued expression
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for use in initializing a static bit-field; one that can be
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an element of a "constant" initializer. */
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extern bool initializer_constant_valid_for_bitfield_p (tree);
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/* Output assembler code for constant EXP to FILE, with no label.
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This includes the pseudo-op such as ".int" or ".byte", and a newline.
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Assumes output_addressed_constants has been done on EXP already.
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Generate exactly SIZE bytes of assembler data, padding at the end
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with zeros if necessary. SIZE must always be specified.
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ALIGN is the alignment in bits that may be assumed for the data. */
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extern void output_constant (tree, unsigned HOST_WIDE_INT, unsigned int);
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/* When outputting delayed branch sequences, this rtx holds the
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sequence being output. It is null when no delayed branch
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sequence is being output, so it can be used as a test in the
|
| 324 |
|
|
insn output code.
|
| 325 |
|
|
|
| 326 |
|
|
This variable is defined in final.c. */
|
| 327 |
|
|
extern rtx final_sequence;
|
| 328 |
|
|
|
| 329 |
|
|
/* The line number of the beginning of the current function. Various
|
| 330 |
|
|
md code needs this so that it can output relative linenumbers. */
|
| 331 |
|
|
|
| 332 |
|
|
#ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */
|
| 333 |
|
|
extern int sdb_begin_function_line;
|
| 334 |
|
|
#endif
|
| 335 |
|
|
|
| 336 |
|
|
/* File in which assembler code is being written. */
|
| 337 |
|
|
|
| 338 |
|
|
#ifdef BUFSIZ
|
| 339 |
|
|
extern FILE *asm_out_file;
|
| 340 |
|
|
#endif
|
| 341 |
|
|
|
| 342 |
|
|
/* The first global object in the file. */
|
| 343 |
|
|
extern const char *first_global_object_name;
|
| 344 |
|
|
|
| 345 |
|
|
/* The first weak object in the file. */
|
| 346 |
|
|
extern const char *weak_global_object_name;
|
| 347 |
|
|
|
| 348 |
|
|
/* Nonzero if function being compiled doesn't contain any calls
|
| 349 |
|
|
(ignoring the prologue and epilogue). This is set prior to
|
| 350 |
|
|
local register allocation and is valid for the remaining
|
| 351 |
|
|
compiler passes. */
|
| 352 |
|
|
|
| 353 |
|
|
extern int current_function_is_leaf;
|
| 354 |
|
|
|
| 355 |
|
|
/* Nonzero if function being compiled doesn't modify the stack pointer
|
| 356 |
|
|
(ignoring the prologue and epilogue). This is only valid after
|
| 357 |
|
|
pass_stack_ptr_mod has run. */
|
| 358 |
|
|
|
| 359 |
|
|
extern int current_function_sp_is_unchanging;
|
| 360 |
|
|
|
| 361 |
|
|
/* Nonzero if the function being compiled is a leaf function which only
|
| 362 |
|
|
uses leaf registers. This is valid after reload (specifically after
|
| 363 |
|
|
sched2) and is useful only if the port defines LEAF_REGISTERS. */
|
| 364 |
|
|
|
| 365 |
|
|
extern int current_function_uses_only_leaf_regs;
|
| 366 |
|
|
|
| 367 |
|
|
/* Default file in which to dump debug output. */
|
| 368 |
|
|
|
| 369 |
|
|
#ifdef BUFSIZ
|
| 370 |
|
|
extern FILE *dump_file;
|
| 371 |
|
|
#endif
|
| 372 |
|
|
|
| 373 |
|
|
/* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */
|
| 374 |
|
|
extern rtx current_insn_predicate;
|
| 375 |
|
|
|
| 376 |
|
|
/* Last insn processed by final_scan_insn. */
|
| 377 |
|
|
extern rtx current_output_insn;
|
| 378 |
|
|
|
| 379 |
|
|
/* Nonzero while outputting an `asm' with operands.
|
| 380 |
|
|
This means that inconsistencies are the user's fault, so don't die.
|
| 381 |
|
|
The precise value is the insn being output, to pass to error_for_asm. */
|
| 382 |
|
|
extern rtx this_is_asm_operands;
|
| 383 |
|
|
|
| 384 |
|
|
/* Carry information from ASM_DECLARE_OBJECT_NAME
|
| 385 |
|
|
to ASM_FINISH_DECLARE_OBJECT. */
|
| 386 |
|
|
extern int size_directive_output;
|
| 387 |
|
|
extern tree last_assemble_variable_decl;
|
| 388 |
|
|
|
| 389 |
|
|
extern bool first_function_block_is_cold;
|
| 390 |
|
|
|
| 391 |
|
|
/* Decide whether DECL needs to be in a writable section.
|
| 392 |
|
|
RELOC is the same as for SELECT_SECTION. */
|
| 393 |
|
|
extern bool decl_readonly_section (const_tree, int);
|
| 394 |
|
|
|
| 395 |
|
|
/* This can be used to compute RELOC for the function above, when
|
| 396 |
|
|
given a constant expression. */
|
| 397 |
|
|
extern int compute_reloc_for_constant (tree);
|
| 398 |
|
|
|
| 399 |
|
|
/* User label prefix in effect for this compilation. */
|
| 400 |
|
|
extern const char *user_label_prefix;
|
| 401 |
|
|
|
| 402 |
|
|
/* Default target function prologue and epilogue assembler output. */
|
| 403 |
|
|
extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT);
|
| 404 |
|
|
|
| 405 |
|
|
/* Default target hook that outputs nothing to a stream. */
|
| 406 |
|
|
extern void no_asm_to_stream (FILE *);
|
| 407 |
|
|
|
| 408 |
|
|
/* Flags controlling properties of a section. */
|
| 409 |
|
|
#define SECTION_ENTSIZE 0x000ff /* entity size in section */
|
| 410 |
|
|
#define SECTION_CODE 0x00100 /* contains code */
|
| 411 |
|
|
#define SECTION_WRITE 0x00200 /* data is writable */
|
| 412 |
|
|
#define SECTION_DEBUG 0x00400 /* contains debug data */
|
| 413 |
|
|
#define SECTION_LINKONCE 0x00800 /* is linkonce */
|
| 414 |
|
|
#define SECTION_SMALL 0x01000 /* contains "small data" */
|
| 415 |
|
|
#define SECTION_BSS 0x02000 /* contains zeros only */
|
| 416 |
|
|
#define SECTION_FORGET 0x04000 /* forget that we've entered the section */
|
| 417 |
|
|
#define SECTION_MERGE 0x08000 /* contains mergeable data */
|
| 418 |
|
|
#define SECTION_STRINGS 0x10000 /* contains zero terminated strings without
|
| 419 |
|
|
embedded zeros */
|
| 420 |
|
|
#define SECTION_OVERRIDE 0x20000 /* allow override of default flags */
|
| 421 |
|
|
#define SECTION_TLS 0x40000 /* contains thread-local storage */
|
| 422 |
|
|
#define SECTION_NOTYPE 0x80000 /* don't output @progbits */
|
| 423 |
|
|
#define SECTION_DECLARED 0x100000 /* section has been used */
|
| 424 |
|
|
#define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */
|
| 425 |
|
|
#define SECTION_COMMON 0x800000 /* contains common data */
|
| 426 |
|
|
#define SECTION_MACH_DEP 0x1000000 /* subsequent bits reserved for target */
|
| 427 |
|
|
|
| 428 |
|
|
/* This SECTION_STYLE is used for unnamed sections that we can switch
|
| 429 |
|
|
to using a special assembler directive. */
|
| 430 |
|
|
#define SECTION_UNNAMED 0x000000
|
| 431 |
|
|
|
| 432 |
|
|
/* This SECTION_STYLE is used for named sections that we can switch
|
| 433 |
|
|
to using a general section directive. */
|
| 434 |
|
|
#define SECTION_NAMED 0x200000
|
| 435 |
|
|
|
| 436 |
|
|
/* This SECTION_STYLE is used for sections that we cannot switch to at
|
| 437 |
|
|
all. The choice of section is implied by the directive that we use
|
| 438 |
|
|
to declare the object. */
|
| 439 |
|
|
#define SECTION_NOSWITCH 0x400000
|
| 440 |
|
|
|
| 441 |
|
|
/* A helper function for default_elf_select_section and
|
| 442 |
|
|
default_elf_unique_section. Categorizes the DECL. */
|
| 443 |
|
|
|
| 444 |
|
|
enum section_category
|
| 445 |
|
|
{
|
| 446 |
|
|
SECCAT_TEXT,
|
| 447 |
|
|
|
| 448 |
|
|
SECCAT_RODATA,
|
| 449 |
|
|
SECCAT_RODATA_MERGE_STR,
|
| 450 |
|
|
SECCAT_RODATA_MERGE_STR_INIT,
|
| 451 |
|
|
SECCAT_RODATA_MERGE_CONST,
|
| 452 |
|
|
SECCAT_SRODATA,
|
| 453 |
|
|
|
| 454 |
|
|
SECCAT_DATA,
|
| 455 |
|
|
|
| 456 |
|
|
/* To optimize loading of shared programs, define following subsections
|
| 457 |
|
|
of data section:
|
| 458 |
|
|
_REL Contains data that has relocations, so they get grouped
|
| 459 |
|
|
together and dynamic linker will visit fewer pages in memory.
|
| 460 |
|
|
_RO Contains data that is otherwise read-only. This is useful
|
| 461 |
|
|
with prelinking as most relocations won't be dynamically
|
| 462 |
|
|
linked and thus stay read only.
|
| 463 |
|
|
_LOCAL Marks data containing relocations only to local objects.
|
| 464 |
|
|
These relocations will get fully resolved by prelinking. */
|
| 465 |
|
|
SECCAT_DATA_REL,
|
| 466 |
|
|
SECCAT_DATA_REL_LOCAL,
|
| 467 |
|
|
SECCAT_DATA_REL_RO,
|
| 468 |
|
|
SECCAT_DATA_REL_RO_LOCAL,
|
| 469 |
|
|
|
| 470 |
|
|
SECCAT_SDATA,
|
| 471 |
|
|
SECCAT_TDATA,
|
| 472 |
|
|
|
| 473 |
|
|
SECCAT_BSS,
|
| 474 |
|
|
SECCAT_SBSS,
|
| 475 |
|
|
SECCAT_TBSS,
|
| 476 |
|
|
|
| 477 |
|
|
SECCAT_EMUTLS_VAR,
|
| 478 |
|
|
SECCAT_EMUTLS_TMPL
|
| 479 |
|
|
};
|
| 480 |
|
|
|
| 481 |
|
|
/* Information that is provided by all instances of the section type. */
|
| 482 |
|
|
struct GTY(()) section_common {
|
| 483 |
|
|
/* The set of SECTION_* flags that apply to this section. */
|
| 484 |
|
|
unsigned int flags;
|
| 485 |
|
|
};
|
| 486 |
|
|
|
| 487 |
|
|
/* Information about a SECTION_NAMED section. */
|
| 488 |
|
|
struct GTY(()) named_section {
|
| 489 |
|
|
struct section_common common;
|
| 490 |
|
|
|
| 491 |
|
|
/* The name of the section. */
|
| 492 |
|
|
const char *name;
|
| 493 |
|
|
|
| 494 |
|
|
/* If nonnull, the VAR_DECL or FUNCTION_DECL with which the
|
| 495 |
|
|
section is associated. */
|
| 496 |
|
|
tree decl;
|
| 497 |
|
|
};
|
| 498 |
|
|
|
| 499 |
|
|
/* A callback that writes the assembly code for switching to an unnamed
|
| 500 |
|
|
section. The argument provides callback-specific data. */
|
| 501 |
|
|
typedef void (*unnamed_section_callback) (const void *);
|
| 502 |
|
|
|
| 503 |
|
|
/* Information about a SECTION_UNNAMED section. */
|
| 504 |
|
|
struct GTY(()) unnamed_section {
|
| 505 |
|
|
struct section_common common;
|
| 506 |
|
|
|
| 507 |
|
|
/* The callback used to switch to the section, and the data that
|
| 508 |
|
|
should be passed to the callback. */
|
| 509 |
|
|
unnamed_section_callback GTY ((skip)) callback;
|
| 510 |
|
|
const void *GTY ((skip)) data;
|
| 511 |
|
|
|
| 512 |
|
|
/* The next entry in the chain of unnamed sections. */
|
| 513 |
|
|
section *next;
|
| 514 |
|
|
};
|
| 515 |
|
|
|
| 516 |
|
|
/* A callback that writes the assembly code for a decl in a
|
| 517 |
|
|
SECTION_NOSWITCH section. DECL is the decl that should be assembled
|
| 518 |
|
|
and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl
|
| 519 |
|
|
in bytes and ROUNDED is that size rounded up to the next
|
| 520 |
|
|
BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary.
|
| 521 |
|
|
|
| 522 |
|
|
Return true if the callback used DECL_ALIGN to set the object's
|
| 523 |
|
|
alignment. A false return value implies that we are relying
|
| 524 |
|
|
on the rounded size to align the decl. */
|
| 525 |
|
|
typedef bool (*noswitch_section_callback) (tree decl, const char *name,
|
| 526 |
|
|
unsigned HOST_WIDE_INT size,
|
| 527 |
|
|
unsigned HOST_WIDE_INT rounded);
|
| 528 |
|
|
|
| 529 |
|
|
/* Information about a SECTION_NOSWITCH section. */
|
| 530 |
|
|
struct GTY(()) noswitch_section {
|
| 531 |
|
|
struct section_common common;
|
| 532 |
|
|
|
| 533 |
|
|
/* The callback used to assemble decls in this section. */
|
| 534 |
|
|
noswitch_section_callback GTY ((skip)) callback;
|
| 535 |
|
|
};
|
| 536 |
|
|
|
| 537 |
|
|
/* Information about a section, which may be named or unnamed. */
|
| 538 |
|
|
union GTY ((desc ("SECTION_STYLE (&(%h))"))) section {
|
| 539 |
|
|
struct section_common GTY ((skip)) common;
|
| 540 |
|
|
struct named_section GTY ((tag ("SECTION_NAMED"))) named;
|
| 541 |
|
|
struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed;
|
| 542 |
|
|
struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch;
|
| 543 |
|
|
};
|
| 544 |
|
|
|
| 545 |
|
|
/* Return the style of section SECT. */
|
| 546 |
|
|
#define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK)
|
| 547 |
|
|
|
| 548 |
|
|
struct object_block;
|
| 549 |
|
|
|
| 550 |
|
|
/* Special well-known sections. */
|
| 551 |
|
|
extern GTY(()) section *text_section;
|
| 552 |
|
|
extern GTY(()) section *data_section;
|
| 553 |
|
|
extern GTY(()) section *readonly_data_section;
|
| 554 |
|
|
extern GTY(()) section *sdata_section;
|
| 555 |
|
|
extern GTY(()) section *ctors_section;
|
| 556 |
|
|
extern GTY(()) section *dtors_section;
|
| 557 |
|
|
extern GTY(()) section *bss_section;
|
| 558 |
|
|
extern GTY(()) section *sbss_section;
|
| 559 |
|
|
extern GTY(()) section *exception_section;
|
| 560 |
|
|
extern GTY(()) section *eh_frame_section;
|
| 561 |
|
|
extern GTY(()) section *tls_comm_section;
|
| 562 |
|
|
extern GTY(()) section *comm_section;
|
| 563 |
|
|
extern GTY(()) section *lcomm_section;
|
| 564 |
|
|
extern GTY(()) section *bss_noswitch_section;
|
| 565 |
|
|
|
| 566 |
|
|
extern GTY(()) section *in_section;
|
| 567 |
|
|
extern GTY(()) bool in_cold_section_p;
|
| 568 |
|
|
|
| 569 |
|
|
extern section *get_unnamed_section (unsigned int, void (*) (const void *),
|
| 570 |
|
|
const void *);
|
| 571 |
|
|
extern section *get_section (const char *, unsigned int, tree);
|
| 572 |
|
|
extern section *get_named_section (tree, const char *, int);
|
| 573 |
|
|
extern void place_block_symbol (rtx);
|
| 574 |
|
|
extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT,
|
| 575 |
|
|
enum tls_model);
|
| 576 |
|
|
extern section *mergeable_constant_section (enum machine_mode,
|
| 577 |
|
|
unsigned HOST_WIDE_INT,
|
| 578 |
|
|
unsigned int);
|
| 579 |
|
|
extern section *function_section (tree);
|
| 580 |
|
|
extern section *unlikely_text_section (void);
|
| 581 |
|
|
extern section *current_function_section (void);
|
| 582 |
|
|
|
| 583 |
|
|
/* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if
|
| 584 |
|
|
not) section for PRIORITY. */
|
| 585 |
|
|
extern section *get_cdtor_priority_section (int, bool);
|
| 586 |
|
|
|
| 587 |
|
|
extern bool unlikely_text_section_p (section *);
|
| 588 |
|
|
extern void switch_to_section (section *);
|
| 589 |
|
|
extern void output_section_asm_op (const void *);
|
| 590 |
|
|
|
| 591 |
|
|
extern unsigned int default_section_type_flags (tree, const char *, int);
|
| 592 |
|
|
|
| 593 |
|
|
extern bool have_global_bss_p (void);
|
| 594 |
|
|
extern void default_no_named_section (const char *, unsigned int, tree);
|
| 595 |
|
|
extern void default_elf_asm_named_section (const char *, unsigned int, tree);
|
| 596 |
|
|
extern enum section_category categorize_decl_for_section (const_tree, int);
|
| 597 |
|
|
extern void default_coff_asm_named_section (const char *, unsigned int, tree);
|
| 598 |
|
|
extern void default_pe_asm_named_section (const char *, unsigned int, tree);
|
| 599 |
|
|
|
| 600 |
|
|
extern void default_stabs_asm_out_destructor (rtx, int);
|
| 601 |
|
|
extern void default_named_section_asm_out_destructor (rtx, int);
|
| 602 |
|
|
extern void default_dtor_section_asm_out_destructor (rtx, int);
|
| 603 |
|
|
extern void default_stabs_asm_out_constructor (rtx, int);
|
| 604 |
|
|
extern void default_named_section_asm_out_constructor (rtx, int);
|
| 605 |
|
|
extern void default_ctor_section_asm_out_constructor (rtx, int);
|
| 606 |
|
|
|
| 607 |
|
|
extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT);
|
| 608 |
|
|
extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT);
|
| 609 |
|
|
extern void default_unique_section (tree, int);
|
| 610 |
|
|
extern section *default_function_rodata_section (tree);
|
| 611 |
|
|
extern section *default_no_function_rodata_section (tree);
|
| 612 |
|
|
extern section *default_select_rtx_section (enum machine_mode, rtx,
|
| 613 |
|
|
unsigned HOST_WIDE_INT);
|
| 614 |
|
|
extern section *default_elf_select_rtx_section (enum machine_mode, rtx,
|
| 615 |
|
|
unsigned HOST_WIDE_INT);
|
| 616 |
|
|
extern void default_encode_section_info (tree, rtx, int);
|
| 617 |
|
|
extern const char *default_strip_name_encoding (const char *);
|
| 618 |
|
|
extern void default_asm_output_anchor (rtx);
|
| 619 |
|
|
extern bool default_use_anchors_for_symbol_p (const_rtx);
|
| 620 |
|
|
extern bool default_binds_local_p (const_tree);
|
| 621 |
|
|
extern bool default_binds_local_p_1 (const_tree, int);
|
| 622 |
|
|
extern void default_globalize_label (FILE *, const char *);
|
| 623 |
|
|
extern void default_globalize_decl_name (FILE *, tree);
|
| 624 |
|
|
extern void default_emit_unwind_label (FILE *, tree, int, int);
|
| 625 |
|
|
extern void default_emit_except_table_label (FILE *);
|
| 626 |
|
|
extern void default_internal_label (FILE *, const char *, unsigned long);
|
| 627 |
|
|
extern void default_file_start (void);
|
| 628 |
|
|
extern void file_end_indicate_exec_stack (void);
|
| 629 |
|
|
|
| 630 |
|
|
extern void default_elf_asm_output_external (FILE *file, tree,
|
| 631 |
|
|
const char *);
|
| 632 |
|
|
extern int maybe_assemble_visibility (tree);
|
| 633 |
|
|
|
| 634 |
|
|
extern int default_address_cost (rtx, bool);
|
| 635 |
|
|
|
| 636 |
|
|
/* dbxout helper functions */
|
| 637 |
|
|
#if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO
|
| 638 |
|
|
|
| 639 |
|
|
extern void dbxout_int (int);
|
| 640 |
|
|
extern void dbxout_stabd (int, int);
|
| 641 |
|
|
extern void dbxout_begin_stabn (int);
|
| 642 |
|
|
extern void dbxout_begin_stabn_sline (int);
|
| 643 |
|
|
extern void dbxout_begin_empty_stabs (int);
|
| 644 |
|
|
extern void dbxout_begin_simple_stabs (const char *, int);
|
| 645 |
|
|
extern void dbxout_begin_simple_stabs_desc (const char *, int, int);
|
| 646 |
|
|
|
| 647 |
|
|
extern void dbxout_stab_value_zero (void);
|
| 648 |
|
|
extern void dbxout_stab_value_label (const char *);
|
| 649 |
|
|
extern void dbxout_stab_value_label_diff (const char *, const char *);
|
| 650 |
|
|
extern void dbxout_stab_value_internal_label (const char *, int *);
|
| 651 |
|
|
extern void dbxout_stab_value_internal_label_diff (const char *, int *,
|
| 652 |
|
|
const char *);
|
| 653 |
|
|
|
| 654 |
|
|
#endif
|
| 655 |
|
|
|
| 656 |
|
|
#endif /* ! GCC_OUTPUT_H */
|