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binutils-gdb/gas/symbols.h
Alan Modra 8d1015a887 Move struc-symbol.h to symbols.c 
This file was never supposed to be widely used.  The fact that it has
found its way into many gas files led to bugs, typically when code
expecting a symbolS* to point at a struct symbol is presented with a
struct local_symbol.  Also, commit 158184ac9e changed these structs in
2012 but didn't catch all places where symbol bsym was being used to
test for a local_symbol.

	* Makefile.am (HFILES): Delete struc-symbol.h.
	* doc/internals.texi: Delete struc-symbol.h reference and out
	of date local symbol description.
	* struc-symbol.h: Delete.  Move contents to..
	* symbols.c: ..here.
	(symbol_on_chain, symbol_symbolS): New functions.
	* symbols.h (symbol_on_chain, symbol_symbolS): Declare.
	* cgen.c: Don't #include struc-symbol.h.
	(gas_cgen_parse_operand): Don't test for local_symbol using
	bsym, instead call symbol_symbolS.  Use symbol_get_bfdsym.
	(weak_operand_overflow_check, make_right_shifted_expr): Use
	symbol accessors.
	* config/obj-coff.c: Don't #include struc-symbol.h.
	(GET_FILENAME_STRING): Delete.
	* config/obj-elf.c: Don't #include struc-symbol.h.
	(elf_file_symbol): Use symbol accessors.
	(elf_adjust_symtab): Call symbol_on_chain.
	* config/obj-evax.c: Don't #include struc-symbol.h.
	* config/tc-nds32.c: Likewise.
	* config/tc-rl78.c: Likewise.
	* config/tc-rx.c: Likewise.
	* config/tc-alpha.c: Likewise.
	(add_to_link_pool, s_alpha_comm): Use symbol accessors.
	* config/tc-arc.c: Don't #include struc-symbol.h.
	(arc_check_relocs): Use symbol accessors, testing gas symbol
	section rather than bfd symbol section.
	* config/tc-avr.c: Don't #include struc-symbol.h.
	(avr_patch_gccisr_frag): Use symbol accessors.
	* config/tc-bfin.c: Don't #include struc-symbol.h.
	(bfin_loop_beginend): Use symbol accessors.
	* config/tc-csky.c: Don't #include struc-symbol.h.
	(v2_work_movih, v2_work_ori): Use symbol accessors.  Check for
	absolute symbol as well as O_constant.
	* config/tc-riscv.c: Don't #include struc-symbol.h.
	(riscv_pre_output_hook): Use symbol accessors.
	* config/tc-s390.c: Don't #include struc-symbol.h.
	(s390_literals): Use symbol accessors.
	* config/tc-score.c (s3_build_la_pic, s3_build_lwst_pic): Use
	symbol accessors.
	(s3_relax_branch_inst16, s3_relax_cmpbranch_inst32): Don't
	test symbol bsym.
	* config/tc-score7.c: Don't #include struc-symbol.h.
	(s7_build_la_pic, s7_build_lwst_pic): Use symbol accessors.
	(s7_b32_relax_to_b16): Don't test symbol bsym.
	* config/tc-sh.c: Don't #include struc-symbol.h.
	(insert_loop_bounds): Use symbol accessors.
	(sh_frob_section): Remove bogus symbol canonicalization.
	* config/tc-tic54x.c: Don't #include struc-symbol.h.
	(tic54x_bss): Use symbol accessors.
	* config/tc-tilegx.c: Don't #include struc-symbol.h.
	(emit_tilegx_instruction, tilegx_parse_name): Use symbol accessors.
	* config/tc-tilepro.c: Don't #include struc-symbol.h.
	(emit_tilepro_instruction, tilepro_parse_name): Use accessors.
	* config/tc-xtensa.c: Don't #include struc-symbol.h.
	(xg_assemble_vliw_tokens): Use symbol accessors.
	(xg_order_trampoline_chain): Likewise.
	* ehopt.c: Don't #include struc-symbol.h.
	(check_eh_frame): Correct local symbol test.  Use symbol accessors.
	* write.c: Don't #include struc-symbol.h.
	(create_note_reloc, maybe_generate_build_notes): Use symbol accessors.
	* Makefile.in: Regenerate.
	* po/POTFILES.in: Regenerate.
2018-10-29 18:20:48 +10:30

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/* symbols.h -
Copyright (C) 1987-2018 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or 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 GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
extern struct obstack notes; /* eg FixS live here. */
extern struct obstack cond_obstack; /* this is where we track .ifdef/.endif
(if we do that at all). */
extern symbolS *symbol_rootP; /* all the symbol nodes */
extern symbolS *symbol_lastP; /* last struct symbol we made, or NULL */
extern symbolS abs_symbol;
extern symbolS dot_symbol;
extern int symbol_table_frozen;
/* This is non-zero if symbols are case sensitive, which is the
default. */
extern int symbols_case_sensitive;
char * symbol_relc_make_expr (expressionS *);
char * symbol_relc_make_sym (symbolS *);
char * symbol_relc_make_value (offsetT);
char *decode_local_label_name (char *s);
symbolS *symbol_find (const char *name);
symbolS *symbol_find_noref (const char *name, int noref);
symbolS *symbol_find_exact (const char *name);
symbolS *symbol_find_exact_noref (const char *name, int noref);
symbolS *symbol_find_or_make (const char *name);
symbolS *symbol_make (const char *name);
symbolS *symbol_new (const char *name, segT segment, valueT value,
fragS * frag);
symbolS *symbol_create (const char *name, segT segment, valueT value,
fragS * frag);
struct local_symbol *local_symbol_make (const char *name, segT section,
valueT val, fragS *frag);
symbolS *symbol_clone (symbolS *, int);
#undef symbol_clone_if_forward_ref
symbolS *symbol_clone_if_forward_ref (symbolS *, int);
#define symbol_clone_if_forward_ref(s) symbol_clone_if_forward_ref (s, 0)
symbolS *symbol_temp_new (segT, valueT, fragS *);
symbolS *symbol_temp_new_now (void);
symbolS *symbol_temp_make (void);
symbolS *colon (const char *sym_name);
void local_colon (int n);
void symbol_begin (void);
void dot_symbol_init (void);
void symbol_print_statistics (FILE *);
void symbol_table_insert (symbolS * symbolP);
valueT resolve_symbol_value (symbolS *);
void resolve_local_symbol_values (void);
int snapshot_symbol (symbolS **, valueT *, segT *, fragS **);
void print_symbol_value (symbolS *);
void print_expr (expressionS *);
void print_expr_1 (FILE *, expressionS *);
void print_symbol_value_1 (FILE *, symbolS *);
int dollar_label_defined (long l);
void dollar_label_clear (void);
void define_dollar_label (long l);
char *dollar_label_name (long l, int augend);
void fb_label_instance_inc (long label);
char *fb_label_name (long n, long augend);
extern void copy_symbol_attributes (symbolS *, symbolS *);
/* Get and set the values of symbols. These used to be macros. */
extern valueT S_GET_VALUE (symbolS *);
extern void S_SET_VALUE (symbolS *, valueT);
extern int S_IS_FUNCTION (symbolS *);
extern int S_IS_EXTERNAL (symbolS *);
extern int S_IS_WEAK (symbolS *);
extern int S_IS_WEAKREFR (symbolS *);
extern int S_IS_WEAKREFD (symbolS *);
extern int S_IS_COMMON (symbolS *);
extern int S_IS_DEFINED (symbolS *);
extern int S_FORCE_RELOC (symbolS *, int);
extern int S_IS_DEBUG (symbolS *);
extern int S_IS_LOCAL (symbolS *);
extern int S_IS_STABD (symbolS *);
extern int S_CAN_BE_REDEFINED (const symbolS *);
extern int S_IS_VOLATILE (const symbolS *);
extern int S_IS_FORWARD_REF (const symbolS *);
extern const char *S_GET_NAME (symbolS *);
extern segT S_GET_SEGMENT (symbolS *);
extern void S_SET_SEGMENT (symbolS *, segT);
extern void S_SET_EXTERNAL (symbolS *);
extern void S_SET_NAME (symbolS *, const char *);
extern void S_CLEAR_EXTERNAL (symbolS *);
extern void S_SET_WEAK (symbolS *);
extern void S_SET_WEAKREFR (symbolS *);
extern void S_CLEAR_WEAKREFR (symbolS *);
extern void S_SET_WEAKREFD (symbolS *);
extern void S_CLEAR_WEAKREFD (symbolS *);
extern void S_SET_THREAD_LOCAL (symbolS *);
extern void S_SET_VOLATILE (symbolS *);
extern void S_CLEAR_VOLATILE (symbolS *);
extern void S_SET_FORWARD_REF (symbolS *);
#ifndef WORKING_DOT_WORD
struct broken_word
{
/* Linked list -- one of these structures per ".word x-y+C"
expression. */
struct broken_word *next_broken_word;
/* Segment and subsegment for broken word. */
segT seg;
subsegT subseg;
/* Which frag is this broken word in? */
fragS *frag;
/* Where in the frag is it? */
char *word_goes_here;
/* Where to add the break. */
fragS *dispfrag; /* where to add the break */
/* Operands of expression. */
symbolS *add;
symbolS *sub;
offsetT addnum;
int added; /* nasty thing happened yet? */
/* 1: added and has a long-jump */
/* 2: added but uses someone elses long-jump */
/* Pointer to broken_word with a similar long-jump. */
struct broken_word *use_jump;
};
extern struct broken_word *broken_words;
#endif /* ifdef WORKING_DOT_WORD */
/*
* Current means for getting from symbols to segments and vice verse.
* This will change for infinite-segments support (e.g. COFF).
*/
extern const segT N_TYPE_seg[]; /* subseg.c */
#define SEGMENT_TO_SYMBOL_TYPE(seg) ( seg_N_TYPE [(int) (seg)] )
extern const short seg_N_TYPE[];/* subseg.c */
#define N_REGISTER 30 /* Fake N_TYPE value for SEG_REGISTER */
void symbol_clear_list_pointers (symbolS * symbolP);
void symbol_insert (symbolS * addme, symbolS * target,
symbolS ** rootP, symbolS ** lastP);
void symbol_remove (symbolS * symbolP, symbolS ** rootP,
symbolS ** lastP);
extern symbolS *symbol_previous (symbolS *);
extern int symbol_on_chain (symbolS *s, symbolS *rootPP, symbolS *lastPP);
void verify_symbol_chain (symbolS * rootP, symbolS * lastP);
void symbol_append (symbolS * addme, symbolS * target,
symbolS ** rootP, symbolS ** lastP);
extern symbolS *symbol_next (symbolS *);
extern expressionS *symbol_get_value_expression (symbolS *);
extern void symbol_set_value_expression (symbolS *, const expressionS *);
extern offsetT *symbol_X_add_number (symbolS *);
extern void symbol_set_value_now (symbolS *);
extern void symbol_set_frag (symbolS *, fragS *);
extern fragS *symbol_get_frag (symbolS *);
extern void symbol_mark_used (symbolS *);
extern void symbol_clear_used (symbolS *);
extern int symbol_used_p (symbolS *);
extern void symbol_mark_used_in_reloc (symbolS *);
extern void symbol_clear_used_in_reloc (symbolS *);
extern int symbol_used_in_reloc_p (symbolS *);
extern void symbol_mark_mri_common (symbolS *);
extern void symbol_clear_mri_common (symbolS *);
extern int symbol_mri_common_p (symbolS *);
extern void symbol_mark_written (symbolS *);
extern void symbol_clear_written (symbolS *);
extern int symbol_written_p (symbolS *);
extern void symbol_mark_resolved (symbolS *);
extern int symbol_resolved_p (symbolS *);
extern int symbol_section_p (symbolS *);
extern int symbol_equated_p (symbolS *);
extern int symbol_equated_reloc_p (symbolS *);
extern int symbol_constant_p (symbolS *);
extern int symbol_shadow_p (symbolS *);
extern symbolS *symbol_symbolS (symbolS *);
extern asymbol *symbol_get_bfdsym (symbolS *);
extern void symbol_set_bfdsym (symbolS *, asymbol *);
extern int symbol_same_p (symbolS *, symbolS *);
#ifdef OBJ_SYMFIELD_TYPE
OBJ_SYMFIELD_TYPE *symbol_get_obj (symbolS *);
void symbol_set_obj (symbolS *, OBJ_SYMFIELD_TYPE *);
#endif
#ifdef TC_SYMFIELD_TYPE
TC_SYMFIELD_TYPE *symbol_get_tc (symbolS *);
void symbol_set_tc (symbolS *, TC_SYMFIELD_TYPE *);
#endif
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