Commit graph

27 commits

Author SHA1 Message Date
Ian Lance Taylor
fb50cd4ef2 Fri Jan 31 13:15:05 1997 Alan Modra <alan@spri.levels.unisa.edu.au>
* config/tc-i386.c (i386_align_code): Add comments explaining the
	nop instructions.
1997-01-31 18:16:15 +00:00
Ian Lance Taylor
0b476c533b Thu Jan 30 12:28:18 1997 Alan Modra <alan@spri.levels.unisa.edu.au>
* config/tc-i386.c (i386_align_code): Improve the nop patterns.
1997-01-30 17:29:28 +00:00
Ian Lance Taylor
e592f0e63d * config/tc-i386.c (tc_gen_reloc): Accept all relocs; remove
#ifndef OBJ_ELF lines.  From Eric Valette <valette@crf.canon.fr>.
	(tc_gen_reloc): If out of memory call as_fatal rather than
	assert.  If no howto found, call as_bad_where rather than
	as_fatal.  Change the error message slightly.  Set howto to a
	non-NULL value in order to keep going.
1996-08-07 15:54:33 +00:00
Ian Lance Taylor
3ea36b5319 * config/tc-i386.c (md_assemble): Make sure the opcode suffix
matches the register size.
PR 9700.
1996-05-15 16:26:20 +00:00
Ken Raeburn
a2a5a4fa41 fsf address update 1995-07-06 21:18:08 +00:00
Steve Chamberlain
30355216bd * config/obj-coff.c (fixup_segment): PE doens't use
the strange common symbol format that other 386s formats
	do.
	* config/tc-i386.c (md_begin): If LEX_AT defined then
	'@' is in the set of identifiers.
	(i386_operand): If LEX_AT, then don't look for @goto stuff.
	* config/te-pe.h: Define LEX_AT.
1995-06-29 00:41:02 +00:00
Ian Lance Taylor
0877841d73 * config/tc-i386.c (tc_i386_fix_adjustable): Don't adjust PLT or
GOT relocs either.
1995-02-28 20:35:41 +00:00
Ken Raeburn
c54c7aaca3 Bryan Ford's changes for 16-bit i386 support, and i386-msdos support. 1995-02-06 08:53:05 +00:00
Ken Raeburn
f0b37b4ad6 * tc-i386.c (TC_RELOC): New macro.
(struct _i386_insn): New field disp_reloc.
(GOT_symbol): New variable.
(operand_special_chars): Added square-brackets and at-sign.
(reloc) [BFD_ASSEMBLER]: Added new argument OTHER; if it is not NO_RELOC, just
return it.
(reloc) [! BFD_ASSEMBLER]: Add third argument to dummy macro.
(BFD_RELOC_386_PLT32, _GOT32, _GOTOFF) [! BFD_ASSEMBLER]: More dummy macros.
(tc_i386_fix_adjustable): New function.  Returns zero if symbol in fixup is not
local, to prevent relocations against externals from being dropped.
(md_assemble): Initialize disp_reloc field to NO_RELOC.  Pass disp_reloc field
to reloc() function, and use TC_RELOC to generate value to pass to fix_new_exp.
(md_assemble): Change 32-bit reloc against GOT_symbol into a GOTPC reloc.
(i386_operand): Initialize disp_reloc field to NO_RELOC.  Handle @GOTOFF, @PLT,
@GOT operands.  For GOTOFF relocations with local symbols, force generation of
the section symbol.
(md_estimate_size_before_relax): If GOT_symbol exists, decide we're generating
PIC code, and convert relocations against undefined symbols from PCREL to
PLT32.
(md_apply_fix_1) [OBJ_ELF]: Fix up values for dynamic-linking relocs.
(md_undefined_symbol): Notice GLOBAL_OFFSET_TABLE_NAME and set and return
GOT_symbol if it matches.
(F, MAP): Move macro definitions outside function.
(tc_gen_reloc): Only switch on size and pcrel if code wasn't already supplied
as PLT32. GOT32, GOTOFF, or GOTPC.  Convert BFD_RELOC_32 using GOT_symbol into
GOTPC.

* tc-i386.h (TC_RELOC, tc_fix_adjustable, TC_RELOC_GLOBAL_OFFSET_TABLE,
TC_RELOC_RTSYM_LOC_FIXUP): New macros.
(NEED_FX_R_TYPE): Define.
(LOCAL_LABEL): Accept ".X" prefix too.
(GLOBAL_OFFSET_TABLE_NAME): Default to "_GLOBAL_OFFSET_TABLE_".
1994-09-13 02:15:23 +00:00
Ken Raeburn
ade614d507 (tc_gen_reloc): Use bfd_get_reloc_code_name in error message. 1994-09-07 23:58:32 +00:00
David MacKenzie
f3d817d8b7 * as.c (show_usage): Remove target specific messages;
instead, call md_show_usage.
	(parse_args): Use getopt_long_only.  Take pointers to argc and
	argv.
	(main): Pass parse_args pointers.
	* as.h: Remove 3 variables that are redundant with flagseen.
	* as.c, messages.c: Change their users to use flagseen.
	Define getopt stuff.
	* tc.h: Update md_parse_option decl.  Add md_show_usage decl.
	* config/tc-*.c: Add md_shortopts, md_longopts,
	md_longopts_size, md_show_usage.  Change calling convention for
	md_parse_option.  Remove md_parse_long_option.
	* config/tc-ns32k.c: Rename `struct option' to `struct ns32k_option'.
	* config/tc-i386.h: Don't define md_parse_option.
1994-06-03 17:42:27 +00:00
Ian Lance Taylor
ad660eb164 Thu Oct 14 11:33:25 1993 Michael Meissner (meissner@osf.org)
* config/tc-i386.c: (md_begin): Do not zero static arrays.  Don't
	call strchr for each character to see if it is a special char,
	instead add a second loop over special_chars.  Set alignment
	of text, data and bss sections to 4.
	(pi, te, pt, pe, ps): Add declarations so that DEBUG386 can be
	used again.
	(reloc): Don't return 8 and 16 bit non-PC relative relocations on
	ELF, since the ELF object format does not have these type of
	relocations.  Change the abort into as as_bad and return
	BFD_RELOC_NONE to silence compiler warnings.
	(md_assemble): Keep track of the instruction size.  Allow white
	space between the $ and the constant for compatibility with older
	gases and other assemblers.
	(i386_operand): Skip spaces between $ and expression.
	(tc_gen_reloc): Don't allow anything but 32 bit relocations on
	ELF.  Convert abort into an as_bad and assert into as_fatal.
1993-10-14 15:41:52 +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
Ken Raeburn
7b23213f31 * tc-i386.h (NO_RELOC) [BFD_ASSEMBLER]: Define as BFD_RELOC_NONE.
(md_parse_option): New macro, converted from function.

* tc-i386.c (md_parse_option): Function deleted.
(comment_chars) [OBJ_ELF]: Include "/".
(line_comment_chars) [OBJ_ELF || TE_I386AIX]: Don't include "/".
(md_assemble): Cast 0xe9 to char explicitly, to avoid compiler warning.
(md_assemble, md_estimate_size_before_relax, md_create_long_jump): Call reloc
for fix_new type, or use correct enumerator, instead of always using NO_RELOC.
(i386_operand): Change "ifndef I386COFF" to "ifdef OBJ_AOUT" for
tests for valid section.
(md_convert_frag) [BFD_ASSEMBLER]: Compensate for frag start address.
(md_apply_fix_1) [BFD_ASSEMBLER]: For pc-relative reloc with
symbol, compensate for location of reloc.
(reloc, BFD_RELOC_32, BFD_RELOC_32_PCREL) [!BFD_ASSEMBLER]: Define to return
zero.
1993-08-19 17:45:03 +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
Mark Eichin
025b030243 fix definitions of md_create_long_jump, md_create_short_jump,
md_number_to_chars, and md_section_align to correctly use valueT and addressT
1993-07-12 19:42:32 +00:00
Ken Raeburn
3c8df4ba76 (md_create_short_jump, md_create_long_jump,
md_number_to_chars, md_section_align): Adjusted for new interface.
1993-07-07 16:56:24 +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
Ken Raeburn
c5dd66a13a mostly whitespace/comment changes 1992-12-03 23:52:26 +00:00
Ken Raeburn
355afbcd8b Ran "indent", for GNU coding style; some code & comments still need fixup.
Removed some unneeded files.

obj-coff.c (obj_coff_endef): Use as_warn, not fprintf.
tc-m68k.c (md_assemble): 68000+68881 is okay -- could be emulating.
1992-11-23 20:42:33 +00:00
Ian Lance Taylor
4b77b129c6 Added #include <ctype.h> to several files. It's often more efficient,
and on some systems it's required.
1992-10-14 20:20:03 +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
a87b326934 White space and comment changes, and #ifdef __STDC__ becomes #if
__STDC__ == 1.
1992-02-15 21:09:34 +00:00
K. Richard Pixley
1d63ba3ba0 remove all rcs keywords 1992-02-13 08:39:15 +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