aboutsummaryrefslogtreecommitdiff
path: root/gas/symbols.c
AgeCommit message (Collapse)AuthorFilesLines
1995-10-28 * symbols.c (symbol_find_or_make): Change name to be const.Ian Lance Taylor1-1/+11
* symbols.h (symbol_find_or_make): Update declaration.
1995-09-27 * symbols.c (S_IS_LOCAL): All symbols in reg_section are local.Ian Lance Taylor1-1/+4
1995-08-09 * symbols.c (symbol_begin): Set sy_frag of abs_symbol toIan Lance Taylor1-0/+1
&zero_address_frag.
1995-08-08 * struc-symbol.h (struct symbol): Add sy_mri_common bit.Ian Lance Taylor1-8/+91
* read.h (mri_comon_symbol): Declare. (s_mri_common): Declare. * read.c (mri_line_label): New static variable. (mri_common_symbol): New global variable. (potable): Add "common" and "common.s". (read_a_source_file): In MRI mode, set mri_line_label for a label at the start of a line. (s_mri_common): New function. (s_space): Handle mri_common_symbol. * symbols.c (colon): Change return value from void to symbolS *, and return new symbol. If mri_common_symbol is set, attach the new symbol to it. (resolve_symbol_value): Handle an sy_mri_common symbol. * symbols.h (colon): Change return value in declaration. * subsegs.c (subseg_set_rest): Clear mri_common_symbol. (subseg_set (both versions)): Likewise. * frags.c (frag_more): Warn if mri_common_symbol is not NULL. * write.c (adjust_reloc_syms): Skip sy_mri_common symbols. (write_object_file): Discard sy_mri_common symbols. (fixup_segment): Change relocations against sy_mri_common symbols to be against the common symbol itself. * config/obj-coff.c (yank_symbols): Discard sy_mri_common symbols. (fixup_segment): Change relocations against sy_mri_common symbols to be against the common symbol itself. * config/obj-aout.c (obj_crawl_symbol_chain): Discard sy_mri_common symbols.
1995-07-05 * symbols.c (S_SET_EXTERNAL): Warn if symbol is weak.Ian Lance Taylor1-38/+24
(S_CLEAR_EXTERNAL): Likewise. (S_SET_WEAK): Warn if symbol is global. PR 6750.
1994-12-20* frags.c (frag_init): Call obstack_begin on `frags'.Ken Raeburn1-6/+16
* subsegs.c (subsegs_begin): Don't do it here. * as.c (main): Call frag_init before subsegs_begin. * frags.c (frag_append_1_char): New function. * frags.h (frag_append_1_char): Declare it. (FRAG_APPEND_1_CHAR): Call it. Old definition is commented out for now. * as.h (struct frag): Added (but commented out) new fields for tracking current alignment. (frag_now_fix): Changed macro to function declaration. * frags.c (frag_now_fix): Define function here. (frag_new): Use it instead of accessing `frags' directly. * frags.h (frags): Change comment to indicate it shouldn't be accessed directly. * subsegs.h (struct frchain): New field frch_obstack, intended to eventually replace global `frags' obstack. * subsegs.c (subseg_set_rest): Use frag_now_fix instead of accessing `frags' directly. Initialize fields of new frchainS explicitly instead of with memset. * config/obj-coff.c (obj_coff_ln) [!BFD_ASSEMBLER]: Use frag_now_fix. * config/tc-mips.c (s_loc), config/obj-vms.c (vms_resolve_symbol_redef), symbols.c (colon): Likewise.
1994-09-28forgot to hit ^x^s after deleting "#if 1" linesKen Raeburn1-2/+0
1994-09-28(resolve_symbol_value, case O_symbol): Don't do any processing if add_symbol isKen Raeburn1-23/+84
undefined or in expr_section. (resolve_symbol_value, case O_add): For symbol plus constant-valued symbol, convert to O_symbol and re-reduce. (S_GET_VALUE): If symbol needs resolving, resolve it. (indent_level): No longer static. (print_symbol_value_1): Don't print frag address if it matches zero_address_frag. Don't print "resolving" if already resolved. Print segment name. Don't call print_expr_1 on an undefined symbol. (print_expr_1): Fix whitespace before printing X_add_number.
1994-09-13* .gdbinit (pe, ps): Define new commands.Ken Raeburn1-44/+237
* symbols.c (indent_level): New static variable. (indent, print_expr_1, print_symbol_value_1, print_symbol_value, print_expr): New functions.
1994-01-28* symbols.c (dot_text_symbol, dot_data_symbol, dot_bss_symbol): Deleted.Ken Raeburn1-24/+20
(symbol_begin): Moved to end of file, so function inlining can work better. (fb_label_count, fb_label_max): Default C static initializers are sufficient. * symbols.h (dot_text_symbol, dot_data_symbol, dot_bss_symbol): Declarations deleted.
1994-01-25 * symbols.c (S_IS_COMMON): Use bfd_is_com_section rather thanIan Lance Taylor1-8/+31
comparing against bfd_com_section.
1993-09-13 * subsegs.c: Renamed non-BFD_ASSEMBLER subseg_new to subseg_set.Ian Lance Taylor1-8/+8
Wrote non-BFD_ASSEMBLER subseg_new. Now subseg_new always takes a section name, and subseg_set always takes a segT. Changed all callers as appropriate. * config/obj-coffbfd.c (change_to_section): Renamed to obj_coff_add_segment. Corrected. Made callers use subseg_new. * config/obj-coffbfd.h (obj_segment_name, obj_add_segment): Define. Also some more gcc warning removal.
1993-09-10gcc lint. See ChangeLog for details. Also:Ian Lance Taylor1-3/+3
* config/obj-elf.h (S_SET_SIZE): Actually set the size.
1993-09-01Deleted explicit "return" statements without values at the ends of functions.Ken Raeburn1-15/+20
1993-07-21 * Extensive changes to permit symbols to contain any expressionIan Lance Taylor1-21/+89
type and to delay the computation of the expression until the value is actually needed. This permits setting symbols to values calculated based on object code size. Expressions were changed to no longer be in a section, to stop the overloading of segment and expression type that previously occurred. * as.c (big_section, pass1_section, diff_section, absent_section): Removed. (expr_section): Added (used for dummy symbols which hold intermediate expression values). (perform_an_assembly_pass): Create expr_section, do not create the sections now removed. * as.h (segT): Removed SEG_ABSENT, SEG_PASS1, SEG_BIG, and SEG_DIFFERENCE. Added SEG_EXPR. (SEG_NORMAL): Corresponding changes. * subsegs.c (seg_name, subsegs_begin): Changed accordingly. * write.c (write_object_file): Ditto. * config/obj-aout.c (seg_N_TYPE): Ditto. * config/obj-bout.c (seg_N_TYPE): Ditto. * config/obj-coff.c (seg_N_TYPE): Ditto. * config/obj-coffbfd.c (seg_N_TYPE): Ditto. * config/obj-vms.c (seg_N_TYPE): Ditto. * expr.h (operatorT): Moved in from expr.c, added some values. (expressionS): Added X_op field, removed X_seg field; renamed X_subtract_symbol to X_op_symbol. * expr.c: Extensive changes to assign expression types rather than sections and to simplify the parsing. * write.c (fix_new_internal): New static function. (fix_new): Removed sub_symbol argument. (fix_new_exp): New function, takes expression argument. * write.h: Prototype changes for fix_new and fix_new_exp. * cond.c (s_if): Changed accordingly. * read.c (s_lsym, pseudo_set, emit_expr, parse_bitfield_cons, parse_repeat_cons, get_segmented_expression, get_known_segmented_expression, get_absolute_expression): Ditto. * symbols.c (resolve_symbol_value, S_GET_VALUE, S_SET_VALUE): Ditto. * write.c (write_object_file): Ditto. * config/obj-coff.c (obj_coff_def, obj_coff_val): Ditto. * config/obj-coffbfd.c (obj_coff_def, obj_coff_val, obj_coff_endef, yank_symbols): Ditto. * config/obj-elf.c (obj_elf_stab_generic, obj_elf_size): Ditto. * config/tc-a29k.c (md_assemble, parse_operand, machine_ip, print_insn, md_operand): Ditto. * config/tc-h8300.c (parse_exp, colonmod24, check_operand, do_a_fix_imm, build_bytes): Ditto. * config/tc-h8500.c (parse_exp, skip_colonthing, parse_reglist, get_specific, check, insert, md_convert_frag): Ditto. * config/tc-hppa.c (the_insn, fix_new_hppa, cons_fix_new_hppa, md_assemble, pa_ip, getExpression, getAbsoluteExpression, evaluateAbsolute, pa_build_unwind_subspace, pa_entry, process_exit): Ditto. * config/tc-hppa.h (STAB_FIXUP, is_DP_relative, is_PC_relative, is_complex): Ditto. * config/tc-i386.c (pe, md_assemble, i386_operand, md_estimate_size_before_relax, md_create_long_jump): Ditto. * config/tc-i860.c (md_assemble, getExpression, print_insn): Ditto. * config/tc-i960.c (parse_expr, subs, segs, md_convert_frag, get_cdisp, mem_fmt, parse_ldconst, relax_cobr, s_sysproc, i960_handle_align): Ditto. * config/tc-m68k.c (struct m68k_exp, struct m68k_it, seg, op, subs, add_fix, isvar, m68k_ip, md_assemble, md_convert_frag_1, md_estimate_size_before_relax, md_create_long_jump, get_num): Ditto. * config/tc-m88k.c (md_assemble, get_imm16, get_pcr, md_create_short_jump, md_create_long_jump): Ditto. * config/tc-mips.c (md_assemble, append_insn, gp_reference, macro_build, macro, my_getExpression): Ditto. Also removed get_optional_absolute_expression; just use get_absolute_expression instead. * config/tc-ns32k.c (get_addr_mode, evaluate_expr, convert_iif, fix_new_ns32k, fix_new_ns32k_exp, cons_fix_new_ns32k): Ditto. * config/tc-ns32k.h (fix_new_ns32k prototype): Ditto. * config/tc-sh.c (parse_exp, check, insert, md_convert_frag): Ditto. * config/tc-sparc.c (md_assemble, sparc_ip, getExpression, print_insn): Ditto. * config/tc-tahoe.c (struct top, md_estimate_size_before_relax, tip_op, md_assemble): Ditto. * config/tc-vax.c (seg_of_operand, md_assemble, md_estimate_size_before_relax, md_create_long_jump): Ditto. * config/tc-z8k.c (parse_exp, check_operand, newfix): Ditto.
1993-07-16 * read.c (float_cons): Simplified parsing logic. IfIan Lance Taylor1-2/+3
REPEAT_CONS_EXPRESSIONS is defined, accept a repeat count. * symbols.c (colon): Rather than a special case for TC_HPPA, use new macro tc_frob_label.
1993-07-15 * Preliminary support for m88k-coff.Ian Lance Taylor1-0/+15
* configure.in (m88k-*-coff*): New target. Use coffbfd and m88kcoff. * config/m88kcoff.mt: New file. * read.c (lex_type): New macro LEX_AT to set lex type of '@'. (pseudo_set): Handle difference of symbols in different fragments by saving the entire expression as the value of the symbol. * symbols.c (resolve_symbol_value): Resolve difference expressions. * config/obj-coffbfd.c (obj_pseudo_table): If TC_M88K, accept "sdef" as a synonym for "def". * config/obj-coffbfd.h: If TC_M88K, include coff/m88k.h and set TARGET_FORMAT. (S_IS_LOCAL): Any symbol which includes \001 in the name is local. * config/tc-m88k.c, config/tc-m88k.h: Numerous changes to bring m88k port up to date, and to add COFF support.
1993-07-14 * Removed sy_forward and replaced it with an undefined expressionIan Lance Taylor1-2/+48
as the value of a symbol. * struc-symbol.h (struct symbol): Removed sy_forward field. Added sy_resolved and sy_resolving single bit fields. * symbols.c (symbol_new): Don't initialize sy_forward field. (resolve_symbol_value): New function to adjust symbol value by fragment address, using recursion to resolve forward symbols. * symbols.h: Added prototype for new function. * read.c (pseudo_set): Set symbolP->sy_value to an undefined expression rather than setting symbolP->sy_forward. * write.c (write_object_file): Use resolve_symbol_value on symbols, keeping the common case (the old behaviour) inline. * config/obj-aout.c (obj_aout_frob_symbol): Removed sy_forward handling (subsumed by write.c change). * config/obj-coff.c, config/obj-coffbfd.c (obj_coff_val): Set sy_value rather than sy_forward. * config/obj-coffbfd.c (obj_coff_endef, yank_symbols): Check expression segment rather than sy_forward. (yank_symbols): Use resolve_symbol_value. (crawl_symbols): Removed extra pass over symbols. * config/obj-aout.c, config/obj-bout.c, config/obj-coff.c, config/obj-vms.c (obj_crawl_symbol_chain): Removed extra pass over symbols which handled sy_forward; use resolve_symbol_value instead. * config/obj-coff.h, config/obj-coffbfd.h (obj_frob_forward_symbol): Define. * config/obj-elf.c (obj_elf_stab_generic): Check expression segment rather than sy_forward. * config/obj-vms.c (VMS_Check_For_Main): Don't initialize sy_forward; do initialize sy_resolved and sy_resolving. * config/tc-hppa.h (STAB_FIXUP): Use sy_value, not sy_forward.
1993-07-14 * Changes to keep a full expression as the value of a symbol, notIan Lance Taylor1-15/+22
just a longword: * struc-symbol.h: New field sy_value. * as.h: Include expr.h before struc-symbol.h. * expr.h: Use struct symbol rather than symbolS. * symbols.c (S_GET_VALUE, S_SET_VALUE): Rewrote to retrieve value of sy_value field; compile unconditionally, not just if BFD_ASSEMBLER. * symbols.h: Compile S_{SG}ET_VALUE prototypes unconditionally. * write.c (write_object_file): Set BFD symbol value to gas symbol value. * config/obj-aout.h, config/obj-bout.h, config/obj-coff.h, config/obj-coffbfd.h, config/obj-generic.h, config/obj-vms.h (S_GET_VALUE, S_SET_VALUE): Removed macro definitions. * config/obj-ieee.c (S_GET_VALUE, S_SET_VALUE): Removed. * config/obj-coff.h, obj-coffbfd.h: Rewrote several macros to use S_GET_VALUE rather than ost_entry.n_value. * config/obj-aout.c (obj_symbol_to_chars), config/obj-bout.c (obj_symbol_to_chars), config/obj-coff.c (obj_symbol_to_chars), config/obj-coffbfd.c (symbol_to_chars): Get value to write out using S_GET_VALUE--don't assume it is already set. * config/obj-ieee.c (do_symbols): Set BFD symbol value to gas symbol value. * config/obj-vms.c (various): Don't assign directly to S_GET_VALUE; use S_SET_VALUE instead.
1993-07-07 * symbols.c (fb_label_instance, fb_label_instance_inc): Don't dumpIan Lance Taylor1-13/+22
core just because somebody uses a label before it is defined.
1993-07-07* symbols.c (symbol_new): Symbol value is type valueT.Ken Raeburn1-192/+293
(S_SET_VALUE, S_GET_VALUE): Likewise. (S_IS_*): Specify int return type explicitly. * symbols.h (symbol_new, S_GET_VALUE, S_SET_VALUE): Fixed prototypes.
1992-12-30Wed Dec 30 10:18:57 1992 Ian Lance Taylor (ian@cygnus.com)Ian Lance Taylor1-20/+3
* app.c, config/tc-*.c: Don't include read.h, since it is already included by as.h. * These are based on patches from Minh Tran-le <mtranle@paris.intellicorp.com>. * configure.in (i[34]86-ibm-aix*): Accept i486 for host. Use obj_format coffbfd and gas_target i386coff for target. (i[34]86-*-isc*): New host (uses sysv). * config/i386aix.mt: Removed (no longer used). * config/mh-i386aix (RANLIB): Use true rather than /bin/true. (MINUS_G): Removed. (LDFLAGS): Added, defined as -shlib. * config/te-i386aix.h (REVERSE_SORT_RELOCS): Undefine. * config/te-sco386.h (LOCAL_LABEL): Don't define. (DOT_LABEL_PREFIX): Define. * expr.c (operand): If DOT_LABEL_PREFIX, use .L0\001 as a label name rather than L0\001. * read.c (s_lcomm): Make a frag in SEG_BSS rather than using local_bss_counter. * symbols.c, symbols.h (local_bss_counter): Removed. * write.c (write_object_file): bss no longer uses local_bss_counter. Pass correct data and bss size to VMS_write_object_file. * config/obj-vms.c (VMS_write_object_file): Accept bss size as argument, rather than using local_bss_counter. * config/tc-m88k.c (s_bss): Don't use local_bss_counter. * config/tc-sparc.c (s_reserve): Don't use local_bss_counter. * config/obj-coffbfd.c (had_lineno, had_reloc): Removed. (size_section): Restored sanity check. (do_relocs_for): Base section address on s_paddr rather than computing it. Adjust a29k R_IHIHALF special case to account for section paddr (used to require paddr to be zero). If there are no reclos, set s_relptr to 0. Set relocation size in object_headers. (fill_section): Always set s_vaddr here, removing ZERO_BASED_SEGMENTS case. Force s_scnptr for bss to 0. Don't set NOLOAD for i386 .bss, because it confuses the SVR3 native linker. Set STYP_INFO for .comment. (coff_header_append): Use object headers and H_{SET,GET}_* macros. Make aouthdr writing depend on OBJ_COFF_OMIT_OPTIONAL_HEADER. (crawl_symbols): Handle 8 character section name correctly. Use H_{SET,GET}_* macros. (do_linenos_for): Set lineno size in object_headers. (write_object_file): Use H_{SET,GET}_* macros. Don't bother to set s_vaddr here. If string_byte_count remains 4, set it back to 0, and only write strings out if there are some. Call fill_section before do_relocs_for and do_linenos_for. (obj_coff_section): Handle optional quoted second argument giving section characteristics. (obj_coff_bss): Added to handle .bss. (obj_coff_ident): Added to handle .ident (puts string in .comment section). (obj_coff_lcomm): Put common symbols in .bss, not .data. (fixup_mdeps): Change to segment. Call frag_wane after md_convert_frag. (fixup_segment): Explicitly check S_IS_COMMON before making 386 adjustment (already happened only for common symbols, but this is clearer). * config/obj-coffbfd.h (OBJ_COFF_OMIT_OPTIONAL_HEADER): Define. * config/tc-i386.c (s_bss): Don't use if I386COFF. (md_pseudo_table): Ignore .optim and .noopt. (tc_coff_sizemachdep): New function. * config/tc-i386.h (REVERSE_SORT_RELOCS): Undef, for SVR3 compatibility. (LOCAL_LABEL): Removed definition. (DOT_LABEL_PREFIX): Defined.
1992-11-23Ran "indent", for GNU coding style; some code & comments still need fixup.Ken Raeburn1-442/+775
Removed some unneeded files. configure.in: Don't look for te-386bsd.h, which doesn't exist...
1992-02-13force all files to end in "/* end of filename"K. Richard Pixley1-1/+1
1992-02-13White space and comments only. The devo tree prior to this delta isK. Richard Pixley1-268/+266
tagged as "vanilla" for your convenience. There are also some comment changes.
1992-01-24 * symbols.c(colon): if a symbol is being multiply defined as exactlySteve Chamberlain1-4/+9
the same value, then don't cause a fatal error. This fixes P00000616 - where a def _foo= . followed by foo: is seen.
1991-11-06oops, syntax errorK. Richard Pixley1-1/+1
1991-11-06adjust STRIP_UNDERSCOREK. Richard Pixley1-33/+40
1991-09-01hack around memset().K. Richard Pixley1-1/+2
1991-08-28Better error reporting on missing local labels.K. Richard Pixley1-5/+35
1991-04-04Initial revisionK. Richard Pixley1-0/+614