contrib/gcc/varasm.c

145 section *text_section;
146 section *data_section;
147 section *readonly_data_section;
148 section *sdata_section;
149 section *ctors_section;
150 section *dtors_section;
151 section *bss_section;
152 section *sbss_section;
154 /* Various forms of common section.  All are guaranteed to be nonnull.  */
155 section *tls_comm_section;
156 section *comm_section;
157 section *lcomm_section;
159 /* A SECTION_NOSWITCH section used for declaring global BSS variables.
161 section *bss_noswitch_section;
163 /* The section that holds the main exception table, when known.  The section
166 section *exception_section;
168 /* The section that holds the DWARF2 frame unwind information, when known.
169    The section is set either by the target's init_sections hook or by the
171 section *eh_frame_section;
173 /* asm_out_file's current section.  This is NULL if no section has yet
174    been selected or if we lose track of what the current section is.  */
175 section *in_section;
178    at the cold section.  */
182 static GTY(()) section *unnamed_sections;
184 /* Return a nonzero value if DECL has a section attribute.  */
192 static GTY((param_is (section))) htab_t section_htab;
194 /* A table of object_blocks, indexed by section.  */
208   const section *old = p1;
217   const section *old = p;
221 /* Return a hash value for section SECT.  */
224 hash_section (section *sect)
237   const section *new = p2;
249 /* Return a new unnamed section with the given fields.  */
251 section *
255   section *sect;
267 /* Return a SECTION_NOSWITCH section with the given fields.  */
269 static section *
272   section *sect;
281 /* Return the named section structure associated with NAME.  Create
282    a new section with the given fields if no such structure exists.  */
284 section *
287   section *sect, **slot;
289   slot = (section **)
311 	  error ("%+D causes a section type conflict", decl);
326 /* Return the object_block structure for section SECT.  Create a new
331 get_block_for_section (section *sect)
407 /* Tell assembler to switch to unlikely-to-be-executed text section.  */
409 section *
424    has been assigned a cold text section and if SECT is that section.
426    default cold section.  */
429 unlikely_text_section_p (section *sect)
444 /* Return a section with a particular name and with whatever SECTION_*
445    flags section_type_flags deems appropriate.  The name of the section
447    DECL_SECTION_NAME.  DECL is the decl associated with the section
448    (see the section comment for details) and RELOC is as for
451 section *
536 /* Return the hot section for function DECL.  Return text_section for
539 static section *
551 /* Return the section for function DECL.
553    If DECL is NULL_TREE, return the text section.  We can be passed
556 section *
576 section *
596 /* Return the read-only data section associated with function DECL.  */
598 section *
641 /* Return the read-only data section associated with function DECL
642    for targets where that section should be always the single
643    readonly data section.  */
645 section *
651 /* Return the section to use for string merging.  */
653 static section *
707 /* Return the section to use for constant merging.  */
709 section *
824 /* Return true if DECL's initializer is suitable for a BSS section.  */
880 /* Return the section into which the given VAR_DECL or CONST_DECL
882    section should be used wherever possible.  */
884 static section *
889   /* If the decl has been given an explicit section name, then it
928   section *sect;
949   /* Find out which section should contain DECL.  We cannot put it into
1121 	  /* As a register variable, it has no section.  */
1139   /* Specifying a section attribute on a variable forces it into a
1140      non-.bss section, and thus it cannot be common.  */
1211   const char *section = ".dtors";
1222       section = buf;
1225   switch_to_section (get_section (section, SECTION_WRITE, NULL));
1261   const char *section = ".ctors";
1272       section = buf;
1275   switch_to_section (get_section (section, SECTION_WRITE, NULL));
1388      the alignment when the section switch happens mid-function.  */
1396       /* When the function starts with a cold section, we need to explicitly
1397 	 align the hot section and write out the hot section label.
1426   /* Switch to the correct text section for the start of the function.  */
1491   /* We could have switched section in the middle of the function.  */
1505       section *save_text_section;
1530   /* The `space' pseudo in the text section outputs nop insns rather than 0s,
1531      so we must output 0s explicitly in the text section.  */
1658 /* Assemble DECL given that it belongs in SECTION_NOSWITCH section SECT.
1662 assemble_noswitch_variable (tree decl, const char *name, section *sect)
1734   section *sect;
2154   /* By default, put trampoline templates in read-only data section.  */
2777 /* Return the section into which constant EXP should be placed.  */
2779 static section *
2833       section *sect = get_constant_section (exp);
3269       section *sect = targetm.asm_out.select_rtx_section (mode, x, align);
5245 /* Select a set of attributes for section NAME based on the properties
5249    We make the section read-only and executable for a function decl,
5299      want to print a section type (@progbits or @nobits).  If someone
5313    section in TARGET_ASM_SELECT_SECTION.  */
5321 /* Output assembly to switch to section NAME with attribute FLAGS.
5340   /* If we have already declared this section, we can use an
5341      abbreviated form to switch back to it -- unless this section is
5347       fprintf (asm_out_file, "\t.section\t%s\n", name);
5369   fprintf (asm_out_file, "\t.section\t%s,\"%s\"", name, flagchars);
5412   fprintf (asm_out_file, "\t.section\t%s,\"%s\"\n", name, flagchars);
5432 /* The lame default section selector.  */
5434 section *
5481 	  /* Here the reloc_rw_mask is not testing whether the section should
5518 	 no concept of a read-only thread-local-data section.  */
5559 /* Select a section based on the above categorization.  */
5561 section *
5622 /* Construct a unique section name based on the decl name and the
5739 section *
5750 section *
5813    anchor relative to ".", the current section position.  */
5831   section *sect;
5848       /* Don't use section anchors for decls that might be defined by
5853       /* Don't use section anchors for decls that will be placed in a
5854 	 small data section.  */
5857 	 sections that should be marked as small in the section directive.  */
5988    which emits a special section directive used to indicate whether or
6013 /* Emit assembly code to switch to section NEW_SECTION.  Do nothing if
6014    the current section is NEW_SECTION.  */
6017 switch_to_section (section *new_section)
6200   /* Switch to the section and make sure that the first byte is
6205   /* Define the values of all anchors relative to the current section