X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Foutput.h;h=5d771d7d06f5e9044e858efce8941ec53610e5e7;hb=c8665f5923cd8c92e6c46a20d60b0d974f33d0f5;hp=38278b768adf6136509ed27d33e823f37f11f196;hpb=5fbee89dd6b86ae3be1c36fc6e0c361d0c85e9de;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/output.h b/gcc/output.h index 38278b768ad..5d771d7d06f 100644 --- a/gcc/output.h +++ b/gcc/output.h @@ -1,13 +1,13 @@ /* 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, 2005 Free Software Foundation, Inc. + Copyright (C) 1987, 1991, 1994, 1997, 1998, 1999, 2000, 2001, 2002, + 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free -Software Foundation; either version 2, or (at your option) any later +Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY @@ -16,16 +16,12 @@ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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, 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_OUTPUT_H #define GCC_OUTPUT_H -/* Compute branch alignments based on frequency information in the CFG. */ -extern void compute_alignments (void); - /* Initialize data in final at the beginning of a compilation. */ extern void init_final (const char *); @@ -98,9 +94,16 @@ extern int insn_current_reference_address (rtx); Defined in final.c. */ extern int label_to_alignment (rtx); +/* Find the alignment maximum skip associated with a CODE_LABEL. + Defined in final.c. */ +extern int label_to_max_skip (rtx); + /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */ extern void output_asm_label (rtx); +/* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */ +extern void mark_symbol_refs_as_used (rtx); + /* Print a memory reference operand for address X using machine-dependent assembler syntax. */ extern void output_address (rtx); @@ -148,9 +151,6 @@ extern void leaf_renumber_regs_insn (rtx); /* Locate the proper template for the given insn-code. */ extern const char *get_insn_template (int, rtx); -/* Functions in flow.c */ -extern int regno_clobbered_at_setjmp (int); - /* Functions in varasm.c. */ /* Declare DECL to be a weak symbol. */ @@ -161,6 +161,9 @@ extern void merge_weak (tree, tree); /* Emit any pending weak declarations. */ extern void weak_finish (void); +/* Emit any pending emutls declarations and initializations. */ +extern void emutls_finish (void); + /* Decode an `asm' spec for a declaration as a register name. Return the register number, or -1 if nothing specified, or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, @@ -170,10 +173,6 @@ extern void weak_finish (void); Prefixes such as % are optional. */ extern int decode_reg_name (const char *); -/* Make the rtl for variable VAR be volatile. - Use this only for static variables. */ -extern void make_var_volatile (tree); - extern void assemble_alias (tree, tree); extern void default_assemble_visibility (tree, int); @@ -203,9 +202,13 @@ extern void assemble_end_function (tree, const char *); initial value (that will be done by the caller). */ extern void assemble_variable (tree, int, int, int); -/* Output something to declare an external symbol to the assembler. - (Most assemblers don't need this, so we normally output nothing.) - Do nothing if DECL is not external. */ +/* Compute the alignment of variable specified by DECL. + DONT_OUTPUT_DATA is from assemble_variable. */ +extern void align_variable (tree decl, bool dont_output_data); + +/* Queue for outputting something to declare an external symbol to the + assembler. (Most assemblers don't need this, so we normally output + nothing.) Do nothing if DECL is not external. */ extern void assemble_external (tree); /* Assemble code to leave SIZE bytes of zeros. */ @@ -268,6 +271,9 @@ extern bool assemble_integer (rtx, unsigned, unsigned, int); extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned); #endif +/* Write the address of the entity given by SYMBOL to SEC. */ +extern void assemble_addr_to_section (rtx, section *); + /* Return the size of the constant pool. */ extern int get_pool_size (void); @@ -275,8 +281,16 @@ extern int get_pool_size (void); extern rtx peephole (rtx); #endif -/* Write all the constants in the constant pool. */ -extern void output_constant_pool (const char *, tree); +extern void output_shared_constant_pool (void); + +extern void output_object_blocks (void); + +/* Whether a constructor CTOR is a valid static constant initializer if all + its elements are. This used to be internal to initializer_constant_valid_p + and has been exposed to let other functions like categorize_ctor_elements + evaluate the property while walking a constructor for other purposes. */ + +extern bool constructor_static_from_elts_p (const_tree); /* Return nonzero if VALUE is a valid constant-valued expression for use in initializing a static variable; one that can be an @@ -289,6 +303,11 @@ extern void output_constant_pool (const char *, tree); arithmetic-combinations of integers. */ extern tree initializer_constant_valid_p (tree, tree); +/* Return true if VALUE is a valid constant-valued expression + for use in initializing a static bit-field; one that can be + an element of a "constant" initializer. */ +extern bool initializer_constant_valid_for_bitfield_p (tree); + /* Output assembler code for constant EXP to FILE, with no label. This includes the pseudo-op such as ".int" or ".byte", and a newline. Assumes output_addressed_constants has been done on EXP already. @@ -335,7 +354,7 @@ extern int current_function_is_leaf; /* 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. */ + pass_stack_ptr_mod has run. */ extern int current_function_sp_is_unchanging; @@ -371,8 +390,7 @@ 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); -extern bool decl_readonly_section_1 (tree, int, int); +extern bool decl_readonly_section (const_tree, int); /* This can be used to compute RELOC for the function above, when given a constant expression. */ @@ -403,8 +421,22 @@ extern void no_asm_to_stream (FILE *); #define SECTION_TLS 0x40000 /* contains thread-local storage */ #define SECTION_NOTYPE 0x80000 /* don't output @progbits */ #define SECTION_DECLARED 0x100000 /* section has been used */ -#define SECTION_NAMED 0x200000 /* section has a name */ -#define SECTION_MACH_DEP 0x400000 /* subsequent bits reserved for target */ +#define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */ +#define SECTION_COMMON 0x800000 /* contains common data */ +#define SECTION_MACH_DEP 0x1000000 /* subsequent bits reserved for target */ + +/* This SECTION_STYLE is used for unnamed sections that we can switch + to using a special assembler directive. */ +#define SECTION_UNNAMED 0x000000 + +/* This SECTION_STYLE is used for named sections that we can switch + to using a general section directive. */ +#define SECTION_NAMED 0x200000 + +/* This SECTION_STYLE is used for sections that we cannot switch to at + all. The choice of section is implied by the directive that we use + to declare the object. */ +#define SECTION_NOSWITCH 0x400000 /* A helper function for default_elf_select_section and default_elf_unique_section. Categorizes the DECL. */ @@ -440,17 +472,20 @@ enum section_category SECCAT_BSS, SECCAT_SBSS, - SECCAT_TBSS + SECCAT_TBSS, + + SECCAT_EMUTLS_VAR, + SECCAT_EMUTLS_TMPL }; /* Information that is provided by all instances of the section type. */ -struct section_common GTY(()) { +struct GTY(()) section_common { /* The set of SECTION_* flags that apply to this section. */ unsigned int flags; }; -/* Information that is provided by named sections. */ -struct named_section GTY(()) { +/* Information about a SECTION_NAMED section. */ +struct GTY(()) named_section { struct section_common common; /* The name of the section. */ @@ -465,8 +500,8 @@ struct named_section GTY(()) { section. The argument provides callback-specific data. */ typedef void (*unnamed_section_callback) (const void *); -/* Information that is provided by unnamed sections. */ -struct unnamed_section GTY(()) { +/* Information about a SECTION_UNNAMED section. */ +struct GTY(()) unnamed_section { struct section_common common; /* The callback used to switch to the section, and the data that @@ -478,14 +513,40 @@ struct unnamed_section GTY(()) { section *next; }; +/* A callback that writes the assembly code for a decl in a + SECTION_NOSWITCH section. DECL is the decl that should be assembled + and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl + in bytes and ROUNDED is that size rounded up to the next + BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary. + + Return true if the callback used DECL_ALIGN to set the object's + alignment. A false return value implies that we are relying + on the rounded size to align the decl. */ +typedef bool (*noswitch_section_callback) (tree decl, const char *name, + unsigned HOST_WIDE_INT size, + unsigned HOST_WIDE_INT rounded); + +/* Information about a SECTION_NOSWITCH section. */ +struct GTY(()) noswitch_section { + struct section_common common; + + /* The callback used to assemble decls in this section. */ + noswitch_section_callback GTY ((skip)) callback; +}; + /* Information about a section, which may be named or unnamed. */ -union section GTY ((desc ("(%h).common.flags & SECTION_NAMED"))) -{ +union GTY ((desc ("SECTION_STYLE (&(%h))"))) section { struct section_common GTY ((skip)) common; struct named_section GTY ((tag ("SECTION_NAMED"))) named; - struct unnamed_section GTY ((tag ("0"))) unnamed; + struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed; + struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch; }; +/* Return the style of section SECT. */ +#define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK) + +struct object_block; + /* Special well-known sections. */ extern GTY(()) section *text_section; extern GTY(()) section *data_section; @@ -497,6 +558,10 @@ extern GTY(()) section *bss_section; extern GTY(()) section *sbss_section; extern GTY(()) section *exception_section; extern GTY(()) section *eh_frame_section; +extern GTY(()) section *tls_comm_section; +extern GTY(()) section *comm_section; +extern GTY(()) section *lcomm_section; +extern GTY(()) section *bss_noswitch_section; extern GTY(()) section *in_section; extern GTY(()) bool in_cold_section_p; @@ -505,6 +570,9 @@ extern section *get_unnamed_section (unsigned int, void (*) (const void *), const void *); extern section *get_section (const char *, unsigned int, tree); extern section *get_named_section (tree, const char *, int); +extern void place_block_symbol (rtx); +extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT, + enum tls_model); extern section *mergeable_constant_section (enum machine_mode, unsigned HOST_WIDE_INT, unsigned int); @@ -512,16 +580,20 @@ extern section *function_section (tree); extern section *unlikely_text_section (void); extern section *current_function_section (void); +/* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if + not) section for PRIORITY. */ +extern section *get_cdtor_priority_section (int, bool); + extern bool unlikely_text_section_p (section *); extern void switch_to_section (section *); extern void output_section_asm_op (const void *); 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 bool have_global_bss_p (void); 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 enum section_category categorize_decl_for_section (const_tree, 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); @@ -532,15 +604,9 @@ extern void default_stabs_asm_out_constructor (rtx, int); extern void default_named_section_asm_out_constructor (rtx, int); extern void default_ctor_section_asm_out_constructor (rtx, int); -extern section *default_select_section (tree, int, - unsigned HOST_WIDE_INT); -extern section *default_elf_select_section (tree, int, - unsigned HOST_WIDE_INT); -extern section *default_elf_select_section_1 (tree, int, - unsigned HOST_WIDE_INT, - int); +extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT); +extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT); extern void default_unique_section (tree, int); -extern void default_unique_section_1 (tree, int, int); extern section *default_function_rodata_section (tree); extern section *default_no_function_rodata_section (tree); extern section *default_select_rtx_section (enum machine_mode, rtx, @@ -549,16 +615,23 @@ extern section *default_elf_select_rtx_section (enum machine_mode, rtx, unsigned HOST_WIDE_INT); extern void default_encode_section_info (tree, rtx, int); extern const char *default_strip_name_encoding (const char *); -extern bool default_binds_local_p (tree); -extern bool default_binds_local_p_1 (tree, int); +extern void default_asm_output_anchor (rtx); +extern bool default_use_anchors_for_symbol_p (const_rtx); +extern bool default_binds_local_p (const_tree); +extern bool default_binds_local_p_1 (const_tree, int); extern void default_globalize_label (FILE *, const char *); +extern void default_globalize_decl_name (FILE *, tree); extern void default_emit_unwind_label (FILE *, tree, int, int); +extern void default_emit_except_table_label (FILE *); 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 bool default_valid_pointer_mode (enum machine_mode); -extern int default_address_cost (rtx); +extern void default_elf_asm_output_external (FILE *file, tree, + const char *); +extern int maybe_assemble_visibility (tree); + +extern int default_address_cost (rtx, bool); /* dbxout helper functions */ #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO