Commit Graph

86 Commits

Author SHA1 Message Date
Ian Lance Taylor 80aab57939 Changes to let cons handle bignums like general expressions.
* expr.h (expressionS): New field X_unsigned.
	* expr.c (operand): Initialize X_unsigned to 1.  Set it to 0 for
	unary minus case.
	(expr) Fix typo resultP to right if missing operand.  Set
	X_unsigned to 1 when building new expression.
	* read.c (potable): Make "octa" and "quad" call cons, not
	big_cons.
	(cons): Handle bignums.  If given an O_constant (small integer) to
	fill a big space, turn it into a bignum.
	(parse_bitfield_cons): Set X_unsigned field.
	(bignum_low, bignum_limit, bignum_high, grow_bignum, big_cons):
	Removed.
	* read.h (big_cons): Remove prototype.
	* symbols.c (resolve_symbol_value): Don't give a warning if a
	symbol in expr_section can not be resolved.
	(S_SET_VALUE): Clear X_unsigned.
	* write.c (write_object_file): If resolve_symbol_value failed on a
	symbol we are writing out, give a warning.
	* config/tc-h8500.c (parse_reglist): Set X_unsigned.
	* config/tc-hppa.c (md_pseudo_table): Change "octa" and "quad" to
	call pa_cons, not pa_big_cons.
	(pa_big_cons): Remove.
	* config/tc-hppa.h (pa_big_cons): Remove declaration.
	* config/tc-i960.c (md_pseudo_table): Change "quad" to call cons,
	not big_cons.
1993-10-06 17:31:31 +00:00
Ian Lance Taylor 604633aeca * subsegs.c: Renamed non-BFD_ASSEMBLER subseg_new to subseg_set.
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.
1993-09-13 21:32:07 +00:00
Ian Lance Taylor 58d4951d00 gcc lint. See ChangeLog for details. Also:
* config/obj-elf.h (S_SET_SIZE): Actually set the size.
1993-09-10 16:01:07 +00:00
Ian Lance Taylor abdd08c97c * read.c (get_stab_string_offset, s_stab_generic): If
BFD_ASSEMBLER, call subseg_set rather than subseg_new.
1993-09-09 19:09:23 +00:00
Stan Shebs 1531386bca Add missing ifdef to make m68k-aout targets happy. 1993-09-08 00:20:59 +00:00
Stan Shebs 4064305ec0 Changes to support stabs-in-coff 1993-09-07 17:39:56 +00:00
Ken Raeburn ba71c54da8 (potable): Treat "string" like "asciz". 1993-08-18 20:53:03 +00:00
Ken Raeburn b31f2abb70 (emit_expr): Use BFD_RELOC_64 fr 8-byte expressions. 1993-08-05 17:07:22 +00:00
Ian Lance Taylor cf897ce253 * read.c (read_a_source_file): In NO_PSEUDO_DOT case, if we find a
pseudo-op with a poc_handler field of NULL, ignore it and treat it
	as an instruction instead.
	* config/tc-m88k.c (md_pseudo_table): Add "set" with a NULL
	poc_handler field.
1993-07-23 02:55:25 +00:00
Ian Lance Taylor 8ff6f40e74 * read.c (read_a_source_file): If NO_PSEUDO_DOT is defined, look
up opcodes as pseudo-ops even if they don't start with '.'.
	* config/tc-m88k.h (NO_PSEUDO_DOT): Define.
	* config/tc-m88k.c (md_assemble): Removed special pseudo-op
	handling.
	(md_apply_fix): Set fx_offset to the upper 16 bits of the reloc.
	Output the low 16 bits for RELOC_HI16, not the high 16 bits.
	* config/obj-coffbfd.c (do_relocs_for): If TC_M88K, set the
	r_offset field of the reloc to the fixup offset.
	(fixup_segments): If TC_M88K, don't warn about fixup overflows.
	* doc/as.texinfo: Minor updates.
1993-07-21 17:19:33 +00:00
Ian Lance Taylor 5ac34ac37e * Extensive changes to permit symbols to contain any expression
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.
1993-07-21 00:41:42 +00:00
Ken Raeburn 4380166dfa (read_begin): Call obstack_begin with values closer to 1K multiples.
(read_a_source_file, big_cons, float_cons): Use memcpy instead of bcopy.
1993-07-19 20:04:25 +00:00
Ian Lance Taylor ffffc8fb5c * expr.c (clean_up_expression): Don't cancel the subtraction of
undefined symbols.

Fixes PR 2997.

	* read.c (s_data), config/obj-coffbfd.c (obj_coff_data): If -R,
	switch to text section rather than data section.

Fixes PR 2971.
1993-07-19 18:46:39 +00:00
Ian Lance Taylor 1e9cf56586 * read.c (float_cons): Simplified parsing logic. If
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.
1993-07-16 16:26:03 +00:00
Ian Lance Taylor c978e704a9 * Preliminary support for m88k-coff.
* 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.
1993-07-15 16:02:21 +00:00
Ian Lance Taylor 5868b1fe68 * Removed sy_forward and replaced it with an undefined expression
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 22:21:25 +00:00
Ken Raeburn 4032436291 (s_comm): Values read are type valueT. 1993-07-07 12:37:58 +00:00
Ken Raeburn 49864cfa6c read.c (s_align_bytes): Properly record alignment.
expr.c (__): Undefine before defining.
as.c (got_sig): Don't return anything; return type might be void.
Whitespace/comment cleanup in frags.c.
Some patches for `-pedantic' or `-fno-common' compilation.
(Some of these changes are from Michael Meissner; see change log.)
1993-05-27 19:42:23 +00:00
Ian Lance Taylor 9a7d824a26 * app.c (do_scrub_begin): Let line_comment_chars override
comment_chars.
	(do_scrub_next_char): If a line comment character is not at the
	start of a line, treat it as a comment character if it is one.
	For a CPP line comment use pseudo-op .appline rather than .line.
	* input-scrub.c (logical_input_line): Make int rather than
	unsigned.
	(input_scrub_push, input_scrub_begin): Initialize
	logical_input_line to -1 rather than 0.
	(bump_line_counters): Increment logical_input_line.
	(new_logical_line): If line_number is -2, decrement
	logical_input_line.
	(as_where): Use logical_input_line even if it is 0.
	* read.h (s_app_file prototype): Now takes an int argument.
	* read.c (potable): Make .appfile call s_app_file with 1.  New
	.appline pseudo-op calls s_app_line.
	(s_app_file): If .appfile, call new_logical_line with -2 to
	account for newline inserted by do_scrub_next_char.  If listing,
	call listing_source_file.
	(s_app_line): New function to handle fake pseudo-op .appline.
	* config/obj-coff.c (obj_pseudo_table): Make .appline call
	obj_coff_ln.
	(obj_coff_ln): Added argument to indicate whether .appline.
	* config/obj-coffbfd.c (obj_pseudo_table): Make .appline call
	obj_coff_ln.
	(obj_coff_ln): Added argument to indicate whether .appline.
	* config/tc-mips.c (s_file): Pass argument to s_app_file.
1993-05-27 19:29:38 +00:00
Ken Raeburn 9c6d3f660c (big_cons): If target_big_endian, reverse bytes being copied. (Temporary
fix -- should be cleaned up later.)
(s_ignore): Delete declaration of is_end_of_line.
(potable): Change .app-file to .appfile.
1993-03-29 21:20:04 +00:00
Steve Chamberlain bf44929331 * read.c (s_space): Multiply repeat count by mult, not fill. 1993-03-04 19:55:59 +00:00
Ken Raeburn 9471a360d7 read.c needs ctype.h 1993-03-04 13:21:19 +00:00
Ken Raeburn db81c5e7d5 fix goof from last change 1993-01-04 21:48:44 +00:00
Ken Raeburn c8863a58ef (s_data): Use "data_section"; it'll map to SEG_DATA or SEG_E1 if appropriate,
as soon as I check in as.h.
(s_lcomm): Likewise with bss_section.
(s_fill): Use memset, not bzero.
whitespace/comment changes.
deleted some "#ifdef DONTDEF" sections relating to GDB symtabs.
1993-01-04 13:24:39 +00:00
Ian Lance Taylor 85825401dc Wed Dec 30 10:18:57 1992 Ian Lance Taylor (ian@cygnus.com)
* 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.
1992-12-30 20:34:14 +00:00
Ian Lance Taylor 016e0d4207 Sat Dec 12 15:26:34 1992 Ian Lance Taylor (ian@cygnus.com)
* listing.c: Call xmalloc, not malloc; don't declare malloc.

	* Changes to support SCO 3.2v4:
	* read.c (s_align_bytes, s_align_ptwo): If not SEG_DATA or
	SEG_BSS, fill with NOP_OPCODE.
	* config/i386coff.mt: Add opcode/i386.h to TARG_CPU_DEPENDENTS.
	* config/obj-coffbfd.c (do_relocs_for): Increment addr even if not
	using ZERO_BASED_SEGMENTS.
	(fill_section): If ZERO_BASED_SEGMENTS, set segment addresses, but
	never set segment address for SEG_E2 (.bss) and don't write out
	SEG_E2 contents.  Set .init and .fini sections to STYP_TEXT.
	(obj_coff_endef): Don't merge labels or symbols awaiting forward
	definitions, and don't merge tags with non-tags.  Check for .bf
	rather than just checking whether the second character is b and
	the third character is f.
	(obj_coff_val): gcc can generate values which we don't handle
	correctly; discard information for now, since it only affects the
	debugging information.
	(tag_find_or_name): Don't insert tags in the symbol table.
	(yank_symbols): Don't merge labels.
	(write_object_file): Don't define SUB_SEGMENT_ALIGN if it is
	already defined.  Fill subsegments with NOP_OPCODE, not 0.  Don't
	set segment address if ZERO_BASED_SEGMENTS.
	(obj_coff_section): Accept and ignore a trailing quoted string, as
	used in AT&T i386 syntax.
	(fixup_segment): Take segment as argument.  On the i386, adjust PC
	relative addends by the segment vaddr.
	* tc-i386.h: Define SUB_SEGMENT_ALIGN.
	* tc-a29k.h: Define ZERO_BASED_SEGMENTS.
	* tc-i386.c: (i386_operand): If I386COFF, accept any segment type.
1992-12-13 00:56:14 +00:00
Ken Raeburn 6efd877de5 Ran "indent", for GNU coding style; some code & comments still need fixup.
Removed some unneeded files.

configure.in: Don't look for te-386bsd.h, which doesn't exist...
1992-11-23 20:39:57 +00:00
Ian Lance Taylor b53ccaacae Wed Sep 9 11:06:25 1992 Ian Lance Taylor (ian@cygnus.com)
* Makefile.in: use gas_target instead of modifying target_cpu.
	From Steve Chamberlain:
	Makefile.in: Handle m68*-*-coff*.
	read.c, read.h: add mult argument to s_space
1992-09-09 18:37:27 +00:00
Steve Chamberlain 7fd3560a6a * read.c (s_fill): make the .fill size clamped error a warn and
fix bug where 0's were always placed.
1992-08-06 19:11:19 +00:00
Steve Chamberlain 7c2d4011a4 Wed Jun 24 10:57:54 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* app.c (process_escape): new function to handle escapes the right
	way, (do_scrub_next_char): use new function
	* cond.c (s_ifdef): do ifdef/ifndef right
	* read.c (s_fill): make the , expressions optional like the doc
	says
	* config/tc-h8300.[ch]: better warnings
1992-06-24 18:02:38 +00:00
Steve Chamberlain f8701a3ff8 Thu Jun 4 11:59:13 1992 Steve Chamberlain (sac@thepub.cygnus.com)
* expr.c(expr): allow SEG_REGISTER in expressions.
	* read.c(pseudo_set): register expressions can be the source of a
	set.
	* subsegs.c (subseg_new): Now -R forces all changes to SEG_DATA to
	goto SEG_TEXT (if a.out)
	* write.c (write_object_file): If a.out don't use the old way for
	-R.
	* config/obj-a.out (s_sect): complain if the user tries to use a
	subsegment with a value which might interfere with out -R hackery.
	* config/tc-m68k.c (m68k_reg_parse): lookup names in symbol table
	rather than use ugly if tree. (init_regtable): insert register
	names into symbol table.
1992-06-04 19:21:58 +00:00
K. Richard Pixley 6d5460ab89 changes from Minh Tran-Le <TRANLE@INTELLICORP.COM> to support i386
coff as it appears to be used on aix386.
1992-02-21 11:04:51 +00:00
K. Richard Pixley 542e1629fd fighting bitrot in a major way 1992-02-17 15:54:49 +00:00
K. Richard Pixley 3340f7e5fd White space and comment changes. #ifdef __STDC__ becomes #if __STDC__
== 1.  Get the declarations right in listing.[hc].
1992-02-15 21:13:03 +00:00
K. Richard Pixley a39116f1c9 White space and comments only. The devo tree prior to this delta is
tagged as "vanilla" for your convenience.

There are also some comment changes.
1992-02-13 08:33:54 +00:00
K. Richard Pixley fecd2382e7 Initial revision 1991-04-04 18:19:53 +00:00