Backport from upstream Libtool:

[pf3gnuchains/gcc-fork.git] / gcc / output.h

diff --git a/gcc/output.h b/gcc/output.h
index d4fad19..79b628f 100644 (file)
--- 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.
 /* 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 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
 
 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
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -16,9 +16,8 @@ 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
 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
+<http://www.gnu.org/licenses/>.  */

 
 #ifndef GCC_OUTPUT_H
 #define GCC_OUTPUT_H
 
 #ifndef GCC_OUTPUT_H
 #define GCC_OUTPUT_H


@@ -98,6 +97,9 @@ extern int label_to_alignment (rtx);
 /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol.  */
 extern void output_asm_label (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);
 /* Print a memory reference operand for address X
    using machine-dependent assembler syntax.  */
 extern void output_address (rtx);


@@ -145,9 +147,6 @@ extern void leaf_renumber_regs_insn (rtx);
 /* Locate the proper template for the given insn-code.  */
 extern const char *get_insn_template (int, rtx);
 
 /* 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.  */
 /* Functions in varasm.c.  */
 
 /* Declare DECL to be a weak symbol.  */


@@ -158,6 +157,9 @@ extern void merge_weak (tree, tree);
 /* Emit any pending weak declarations.  */
 extern void weak_finish (void);
 
 /* 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,
 /* 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,


@@ -167,10 +169,6 @@ extern void weak_finish (void);
    Prefixes such as % are optional.  */
 extern int decode_reg_name (const char *);
 
    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);
 extern void assemble_alias (tree, tree);
 
 extern void default_assemble_visibility (tree, int);


@@ -200,9 +198,13 @@ 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);
 
    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.  */
 extern void assemble_external (tree);
 
 /* Assemble code to leave SIZE bytes of zeros.  */


@@ -265,6 +267,9 @@ extern bool assemble_integer (rtx, unsigned, unsigned, int);
 extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned);
 #endif
 
 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);
 
 /* Return the size of the constant pool.  */
 extern int get_pool_size (void);
 


@@ -272,8 +277,16 @@ extern int get_pool_size (void);
 extern rtx peephole (rtx);
 #endif
 
 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
 
 /* Return nonzero if VALUE is a valid constant-valued expression
    for use in initializing a static variable; one that can be an


@@ -332,7 +345,7 @@ 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
 
 /* 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;
 
 
 extern int current_function_sp_is_unchanging;
 


@@ -368,8 +381,7 @@ 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.  */
 
 /* 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.  */
 
 /* This can be used to compute RELOC for the function above, when
    given a constant expression.  */


@@ -400,8 +412,22 @@ 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_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.  */
 
 /* A helper function for default_elf_select_section and
    default_elf_unique_section.  Categorizes the DECL.  */


@@ -437,7 +463,10 @@ enum section_category
 
   SECCAT_BSS,
   SECCAT_SBSS,
 
   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.  */
 };
 
 /* Information that is provided by all instances of the section type.  */


@@ -446,7 +475,7 @@ struct section_common GTY(()) {
   unsigned int flags;
 };
 
   unsigned int flags;
 };
 

-/* Information that is provided by named sections.  */
+/* Information about a SECTION_NAMED section.  */

 struct named_section GTY(()) {
   struct section_common common;
 
 struct named_section GTY(()) {
   struct section_common common;
 


@@ -462,7 +491,7 @@ struct named_section GTY(()) {
    section.  The argument provides callback-specific data.  */
 typedef void (*unnamed_section_callback) (const void *);
 
    section.  The argument provides callback-specific data.  */
 typedef void (*unnamed_section_callback) (const void *);
 

-/* Information that is provided by unnamed sections.  */
+/* Information about a SECTION_UNNAMED section.  */

 struct unnamed_section GTY(()) {
   struct section_common common;
 
 struct unnamed_section GTY(()) {
   struct section_common common;
 


@@ -475,14 +504,41 @@ struct unnamed_section GTY(()) {
   section *next;
 };
 
   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 noswitch_section GTY(()) {
+  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.  */
 /* Information about a section, which may be named or unnamed.  */

-union section GTY ((desc ("(%h).common.flags & SECTION_NAMED")))
+union section GTY ((desc ("SECTION_STYLE (&(%h))")))

 {
   struct section_common GTY ((skip)) common;
   struct named_section GTY ((tag ("SECTION_NAMED"))) named;
 {
   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;
 /* Special well-known sections.  */
 extern GTY(()) section *text_section;
 extern GTY(()) section *data_section;


@@ -494,6 +550,10 @@ extern GTY(()) section *bss_section;
 extern GTY(()) section *sbss_section;
 extern GTY(()) section *exception_section;
 extern GTY(()) section *eh_frame_section;
 extern GTY(()) section *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;
 
 extern GTY(()) section *in_section;
 extern GTY(()) bool in_cold_section_p;


@@ -502,6 +562,9 @@ 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);
                                     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);
 extern section *mergeable_constant_section (enum machine_mode,
                                            unsigned HOST_WIDE_INT,
                                            unsigned int);


@@ -509,16 +572,20 @@ extern section *function_section (tree);
 extern section *unlikely_text_section (void);
 extern section *current_function_section (void);
 
 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 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 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);
 
 extern void default_coff_asm_named_section (const char *, unsigned int, tree);
 extern void default_pe_asm_named_section (const char *, unsigned int, tree);
 


@@ -529,15 +596,9 @@ 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 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 (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,
 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,


@@ -546,9 +607,12 @@ 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 *);
                                                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_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_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);


@@ -556,7 +620,11 @@ extern void default_file_start (void);
 extern void file_end_indicate_exec_stack (void);
 extern bool default_valid_pointer_mode (enum machine_mode);
 
 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
 
 /* dbxout helper functions */
 #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO