aboutsummaryrefslogtreecommitdiff
path: root/gas/symbols.h
diff options
context:
space:
mode:
authorIan Lance Taylor <ian@airs.com>1999-06-03 00:29:48 +0000
committerIan Lance Taylor <ian@airs.com>1999-06-03 00:29:48 +0000
commit49309057b4c45a2586735182830793c77633f51d (patch)
tree1aaca2ad34e77400fd91047b31afce59afa71426 /gas/symbols.h
parent2b47531bf9ef778773831ecb1b43186e95ffe8d7 (diff)
downloadgdb-49309057b4c45a2586735182830793c77633f51d.zip
gdb-49309057b4c45a2586735182830793c77633f51d.tar.gz
gdb-49309057b4c45a2586735182830793c77633f51d.tar.bz2
Add support for storing local symbols in a small structure to save
memory when assembling large files. * as.h: Don't include struc-symbol.h. (symbolS): Add typedef. * symbols.c: Include struc-symbol.h. (local_hash): New static variable. (save_symbol_name): New static function, from symbol_create. (symbol_create): Call save_symbol_name. (local_symbol_count): New static variable. (local_symbol_conversion_count): Likewise. (LOCAL_SYMBOL_CHECK): Define. (local_symbol_make): New static function. (local_symbol_convert): New static function. (colon): Handle local symbols. Create local symbol for local label name. (symbol_table_insert): Handle local symbols. (symbol_find_or_make): Create local symbol for local label name. (symbol_find_base): Check for local symbol. (symbol_append, symbol_insert): Check for local symbols. (symbol_clear_list_pointers, symbol_remove): Likewise. (verify_symbol_chain): Likewise. (copy_symbol_attributes): Likewise. (resolve_symbol_value): Handle local symbols. (resolve_local_symbol): New static function. (resolve_local_symbol_values): New function. (S_GET_VALUE, S_SET_VALUE): Handle local symbols. (S_IS_FUNCTION, S_IS_EXTERNAL, S_IS_WEAK, S_IS_COMMON): Likewise. (S_IS_DEFINED, S_IS_DEBUG, S_IS_LOCAL, S_GET_NAME): Likewise. (S_GET_SEGMENT, S_SET_SEGMENT, S_SET_EXTERNAL): Likewise. (S_CLEAR_EXTERNAL, S_SET_WEAK, S_SET_NAME): Likewise. (symbol_previous, symbol_next): New functions. (symbol_get_value_expression): Likewise. (symbol_set_value_expression): Likewise. (symbol_set_frag, symbol_get_frag): Likewise. (symbol_mark_used, symbol_clear_used, symbol_used_p): Likewise. (symbol_mark_used_in_reloc): Likewise. (symbol_clear_used_in_reloc, symbol_used_in_reloc_p): Likewise. (symbol_mark_mri_common, symbol_clear_mri_common): Likewise. (symbol_mri_common_p): Likewise. (symbol_mark_written, symbol_clear_written): Likewise. (symbol_written_p): Likewise. (symbol_mark_resolved, symbol_resolved_p): Likewise. (symbol_section_p, symbol_equated_p): Likewise. (symbol_constant_p): Likewise. (symbol_get_bfdsym, symbol_set_bfdsym): Likewise. (symbol_get_obj, symbol_set_obj): Likewise. (symbol_get_tc, symbol_set_tc): Likewise. (symbol_begin): Initialize local_hash. (print_symbol_value_1): Handle local symbols. (symbol_print_statistics): Print local symbol statistics. * symbols.h: Include "struc-symbol.h" if not BFD_ASSEMBLER. Declare new symbols.c functions. Move many declarations here from struc-symbol.h. (SYMBOLS_NEED_BACKPOINTERS): Define if needed. * struc-symbol.h (SYMBOLS_NEED_BACKPOINTERS): Don't set. (struct symbol): Move bsym to make it clearly the first field. Remove TARGET_SYMBOL_FIELDS. (symbolS): Don't typedef. (struct broken_word): Remove. (N_TYPE_seg, seg_N_TYPE): Move to symbol.h. (SEGMENT_TO_SYMBOL_TYPE, N_REGISTER): Likewise. (symbol_clear_list_pointers): Likewise. (symbol_insert, symbol_remove): Likewise. (symbol_previous, symbol_append): Likewise. (verify_symbol_chain, verify_symbol_chain_2): Likewise. (struct local_symbol): Define. (local_symbol_converted_p, local_symbol_mark_converted): Define. (local_symbol_resolved_p, local_symbol_mark_resolved): Define. (local_symbol_get_frag, local_symbol_set_frag): Define. (local_symbol_get_real_symbol): Define. (local_symbol_set_real_symbol): Define. Define. * write.c (write_object_file): Call resolve_local_symbol_values. * config/obj-ecoff.h (OBJ_SYMFIELD_TYPE): Define. (TARGET_SYMBOL_FIELDS): Don't define. * config/obj-elf.h (OBJ_SYMFIELD_TYPE): Add local field. If ECOFF_DEBUGGING, add ECOFF fields. (ELF_TARGET_SYMBOL_FIELDS, TARGET_SYMBOL_FIELDS): Don't define. * config/obj-multi.h (struct elf_obj_sy): Add local field. If ECOFF_DEBUGGING, add ECOFF fields. (ELF_TARGET_SYMBOL_FIELDS, TARGET_SYMBOL_FIELDS): Don't define. (ECOFF_DEBUG_TARGET_SYMBOL_FIELDS): Don't define. * config/tc-mcore.h: Don't include struc-symbol.h. (TARGET_SYMBOL_FIELDS): Don't define. (struct mcore_tc_sy): Define. (TC_SYMFIELD_TYPE): Define. * Many files: Use symbolS instead of struct symbol. Use new accessor functions rather than referring to symbolS fields directly. * read.c (s_mri_common): Don't add in value of line_label. * config/tc-mips.c (md_apply_fix): Correct parenthesization when checking for SEC_LINK_ONCE. * config/tc-sh.h (sh_fix_adjustable): Declare.
Diffstat (limited to 'gas/symbols.h')
-rw-r--r--gas/symbols.h116
1 files changed, 115 insertions, 1 deletions
diff --git a/gas/symbols.h b/gas/symbols.h
index c6efbdb..bd7604e 100644
--- a/gas/symbols.h
+++ b/gas/symbols.h
@@ -1,5 +1,6 @@
/* symbols.h -
- Copyright (C) 1987, 90, 92, 93, 94, 95, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1987, 90, 92, 93, 94, 95, 97, 1999
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
@@ -18,6 +19,18 @@
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
+#ifdef BFD_ASSEMBLER
+/* The BFD code wants to walk the list in both directions. */
+#undef SYMBOLS_NEED_BACKPOINTERS
+#define SYMBOLS_NEED_BACKPOINTERS
+#endif
+
+#ifndef BFD_ASSEMBLER
+/* The non-BFD code expects to be able to manipulate the symbol fields
+ directly. */
+#include "struc-symbol.h"
+#endif
+
extern struct obstack notes; /* eg FixS live here. */
extern struct obstack cond_obstack; /* this is where we track .ifdef/.endif
@@ -49,6 +62,7 @@ void symbol_begin PARAMS ((void));
void symbol_print_statistics PARAMS ((FILE *));
void symbol_table_insert PARAMS ((symbolS * symbolP));
valueT resolve_symbol_value PARAMS ((symbolS *, int));
+void resolve_local_symbol_values PARAMS ((void));
void print_symbol_value PARAMS ((symbolS *));
void print_expr PARAMS ((expressionS *));
@@ -87,4 +101,104 @@ extern void S_CLEAR_EXTERNAL PARAMS ((symbolS *));
extern void S_SET_WEAK PARAMS ((symbolS *));
#endif
+#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 happend 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 /* ndef 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 PARAMS ((symbolS * symbolP));
+
+#ifdef SYMBOLS_NEED_BACKPOINTERS
+
+void symbol_insert PARAMS ((symbolS * addme, symbolS * target,
+ symbolS ** rootP, symbolS ** lastP));
+void symbol_remove PARAMS ((symbolS * symbolP, symbolS ** rootP,
+ symbolS ** lastP));
+
+extern symbolS *symbol_previous PARAMS ((symbolS *));
+
+#endif /* SYMBOLS_NEED_BACKPOINTERS */
+
+void verify_symbol_chain PARAMS ((symbolS * rootP, symbolS * lastP));
+void verify_symbol_chain_2 PARAMS ((symbolS * symP));
+
+void symbol_append PARAMS ((symbolS * addme, symbolS * target,
+ symbolS ** rootP, symbolS ** lastP));
+
+extern symbolS *symbol_next PARAMS ((symbolS *));
+
+extern expressionS *symbol_get_value_expression PARAMS ((symbolS *));
+extern void symbol_set_value_expression PARAMS ((symbolS *,
+ const expressionS *));
+extern void symbol_set_frag PARAMS ((symbolS *, fragS *));
+extern fragS *symbol_get_frag PARAMS ((symbolS *));
+extern void symbol_mark_used PARAMS ((symbolS *));
+extern void symbol_clear_used PARAMS ((symbolS *));
+extern int symbol_used_p PARAMS ((symbolS *));
+extern void symbol_mark_used_in_reloc PARAMS ((symbolS *));
+extern void symbol_clear_used_in_reloc PARAMS ((symbolS *));
+extern int symbol_used_in_reloc_p PARAMS ((symbolS *));
+extern void symbol_mark_mri_common PARAMS ((symbolS *));
+extern void symbol_clear_mri_common PARAMS ((symbolS *));
+extern int symbol_mri_common_p PARAMS ((symbolS *));
+extern void symbol_mark_written PARAMS ((symbolS *));
+extern void symbol_clear_written PARAMS ((symbolS *));
+extern int symbol_written_p PARAMS ((symbolS *));
+extern void symbol_mark_resolved PARAMS ((symbolS *));
+extern int symbol_resolved_p PARAMS ((symbolS *));
+extern int symbol_section_p PARAMS ((symbolS *));
+extern int symbol_equated_p PARAMS ((symbolS *));
+extern int symbol_constant_p PARAMS ((symbolS *));
+
+#ifdef BFD_ASSEMBLER
+extern asymbol *symbol_get_bfdsym PARAMS ((symbolS *));
+extern void symbol_set_bfdsym PARAMS ((symbolS *, asymbol *));
+#endif
+
+#ifdef OBJ_SYMFIELD_TYPE
+OBJ_SYMFIELD_TYPE *symbol_get_obj PARAMS ((symbolS *));
+void symbol_set_obj PARAMS ((symbolS *, OBJ_SYMFIELD_TYPE *));
+#endif
+
+#ifdef TC_SYMFIELD_TYPE
+TC_SYMFIELD_TYPE *symbol_get_tc PARAMS ((symbolS *));
+void symbol_set_tc PARAMS ((symbolS *, TC_SYMFIELD_TYPE *));
+#endif
+
/* end of symbols.h */