#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 *);
initial value (that will be done by the caller). */
extern void assemble_variable (tree, int, int, int);
+/* 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);
+
/* 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. */
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 (tree);
/* Return nonzero if VALUE is a valid constant-valued expression
for use in initializing a static variable; one that can be an
#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. */
unsigned int flags;
};
-/* Information that is provided by named sections. */
+/* Information about a SECTION_NAMED section. */
struct named_section GTY(()) {
struct section_common common;
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;
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. */
-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 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;
extern GTY(()) section *dtors_section;
extern GTY(()) section *bss_section;
extern GTY(()) section *sbss_section;
-extern GTY(()) section *init_section;
-extern GTY(()) section *fini_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(()) section *last_text_section;
+extern GTY(()) bool in_cold_section_p;
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);
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);
unsigned HOST_WIDE_INT);
extern void default_encode_section_info (tree, rtx, int);
extern const char *default_strip_name_encoding (const char *);
+extern void default_asm_output_anchor (rtx);
+extern bool default_use_anchors_for_symbol_p (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_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);
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