* config/tc-i386.h: Change Data16 to Size16, Data32 to Size32,
IgnoreDataSize to IgnoreSize as they are used for address size as
well as data size.
* config/tc-i386.c: Likewise. Add code to reject addr32/data32 in
32-bit mode, similarly addr16/data16 and variants.
* config/tc-i386.c: REPNE renamed to REPNE_PREFIX_OPCODE, and
likewise for REPE.
* config/tc-i386.c (reloc): Add braces.
* config/tc-i386.c (struct _i386_insn): Rename bi to sib to be
consistent with Intel naming.
* config/tc-i386.h (base_index_byte): Rename to sib_byte. Don't
use bitfields in sib_byte.
(modrm_byte): Don't use bitfields here either.
* config/tc-i386.c (current_templates): Add const.
(parse_register): Add const to return, param, and char *s.
(i386_operand): Add const to reg_entry *r.
* config/tc-i386.h (templates): Add const to start, end.
Inspired by code for 16 bit gas support from Martynas Kunigelis
<martynas@nm3.ktu.lt>:
* config/tc-i386.c (md_assemble): Add full support for 16 bit
modrm, and Jump, JumpByte, JumpDword, JumpInterSegment insns.
(uses_mem_addrmode): Remove.
(md_estimate_size_before_relax): Add support here too.
(md_relax_table): Rewrite interface to md_relax for 16 bit
support.
(BYTE, WORD, DWORD, UNKNOWN_SIZE): Remove.
(opcode_suffix_to_type): Remove.
(CODE16, SMALL, SMALL16, BIG, BIG16): Define.
(SIZE_FROM_RELAX_STATE): Modify to suit above.
(md_convert_frag): Likewise.
(i386_operand): Add support for 16 bit base/index regs,
immediates, and displacements. Remove some unnecessary casts, and
localise end_of_operand_string, displacement_string_start,
displacement_string_end variables. Add GCC_ASM_O_HACK.
* config/tc-i386.h (NO_BASE_REGISTER_16): Define.
* config/tc-i386.c (prefix_hash): Remove.
(md_begin): Rewrite without obstacks. Remove prefix hash table
handling. Rewrite lexical table handling.
(i386_print_statistics): Don't print prefix statistics.
(md_assemble): Rewrite instruction parser so that line is not
converted to lower case. Don't do a hash_find for prefixes,
instead recognise them via opcode modifier.
(expecting_operand, paren_not_balanced): Localise variables.
* config/tc-i386.h (IsPrefix): Define.
(prefix_entry): Remove.
* config/tc-i386.h (PREFIX_SEPERATOR): Don't define.
* config/tc-i386.c (PREFIX_SEPARATOR): Define here instead, using
'\\' in case where comment_chars contains '/'.
* config/tc-i386.c (MATCH): Ensure given operand and template
match for JumpAbsolute. Makes e.g. `ljmp table(%ebx)' invalid;
you must write `ljmp *table(%ebx)'.
From H.J. Lu <hjl@gnu.org>:
* config/tc-i386.c (BFD_RELOC_16, BFD_RELOC_16_PCREL): Define
as 0 ifndef BFD_ASSEMBLER.
(md_assemble): Allow immediate operands without suffix or
other reg operand to default in size to the current code size.
* config/tc-i386.c (mode_from_disp_size): Disp16 is mode 2.
(i386_operand): Simplify checks for valid base/index combinations.
Disallow `in 4(%dx),%al'.
* config/tc-i386.c (struct _i386_insn): Make regs, base_reg, and
index_reg const.
(add_prefix): Change parameter from char to int.
* config/tc-i386.h (Ugh): Define opcode modifier.
* config/tc-i386.c (md_assemble): Print warnings for Ugh insns.
* config/tc-i386.c (md_assemble): Rewrite MATCH and
CONSISTENT_REGISTER_MATCH macros to check register types more
thoroughly. Check for illegal suffix/operand combinations
when matching insns with operands. Handle new `s' suffix, and
associated FloatMF opcode modifier for float insns with memory
operands.
* config/tc-i386.h (FloatMF): Define new opcode modifier.
(No_sSuf, No_bSuf, No_wSuf, No_lSuf): Likewise.
(SHORT_OPCODE_SUFFIX, LONG_OPCODE_SUFFIX): Define.
* config/tc-i386.c: Rename WORD_PREFIX_OPCODE to
DATA_PREFIX_OPCODE throughout.
* config/tc-i386.c (REGISTER_WARNINGS): Define.
(md_assemble): Rewrite suffix/register operand checking code to be
more thorough. Remove Abs8,16,32. Change occurrences of Mem to
AnyMem, the better to grep.
(pi): Remove Abs.
(i386_operand): Don't set Mem bits in i.types[this_operand] when
given a memory operand. Don't set Abs bits either.
(type_names): Remove Mem*, Abs*.
* config/tc-i386.h (Mem8, Mem16, Mem32, Abs8, Abs16, Abs32): Don't
define opcode_modifiers as these cases are handled by Disp8,
Disp16, Disp32 and suffix checks.
(COMES_IN_BOTH_DIRECTIONS): Remove.
(FloatR): Define. It's OK to share the bit with ReverseRegRegmem.
* config/tc-i386.c (md_assemble): Don't emit operand size prefix
if IgnoreDataSize modifier given. Remove ShortformW modifier
test. Add test for ShortForm in W base_opcode modification.
Merge Seg2ShortForm and Seg3ShortForm code.
* config/tc-i386.h (ShortFormW): Remove.
(IgnoreDataSize): Define.
* config/tc-i386.c (END_STRING_AND_SAVE): Protect arguments of
macros and enclose in do while(0).
(RESTORE_END_STRING): Likewise.
(md_assemble): Add one to printed operand number so we start
from 1 not 0. Add some more gettext invocations.
(i386_operand): Fix `%%s' -> `%%%s'. Inc printed operand
number here too.
* config/tc-i386.h (WAIT_PREFIX, LOCKREP_PREFIX, ADDR_PREFIX,
DATA_PREFIX, SEG_PREFIX): Define.
* config/tc-i386.c (struct _i386_insn): Remove wait_prefix field.
(check_prefix): Remove function.
(add_prefix): New function. Add prefix to i.prefix as well as
doing checks.
(md_assemble): Changes for add_prefix. Remove hack for wait
prefix, instead always output prefixes in fixed order. Test
for jcxz/loop when selecting between word & dword operations,
and add address size prefix rather than operand size prefix.
Remove operand -> address size hack when emitting jcxz/loop.
(i386_operand): Remove O_Absent check as it's done in expr.
* config/tc-i386.c (check_prefix): New static function, split out
from md_assemble.
(struct _i386_insn): Add wait_prefix field.
(md_assemble): Remove wait_prefix local variable. Use
check_prefix when adding a prefix.
* config/tc-i386.c (current_templates): New static variable.
(md_assemble): Remove current_templates local variable.
(md_assemble, i386_operand): Improve error and warning messages in
many places. Add RESTORE_END_STRING in many places before error
return. Clarify some comments.
* config/tc-i386.c (struct _i386_insn): Change seg field to a two
element array.
(md_assemble): Parse string instruction operands, looking for
segment override prefixes. Check for invalid segment prefixes on
string instruction.
(i386_operand): i.seg[] and max mem_operand changes for string
insns.
* config/tc-i386.h (EsSeg): Define.
* config/tc-i386.h (regKludge): Define.
(iclrKludge, imulKludge): Don't define.
* config/tc-i386.c (md_assemble): Merge imulKludge and iclrKludge
code. Move ReverseRegRegmem fudges into Modrm case. Reorder
opcode_modifier checks to look for more common cases first. Add
default_seg for IsString case.
* config/tc-i386.c (md_assemble): Swap template arguments to
CONSISTENT_REGISTER_MATCH macro in reverse direction test.
This macro is currently symmetric, so passing them the wrong
way didn't cause any problem, but may if the macro is changed
in the future.
After copying template to i.tm, use i.tm. rather than t-> to
access fields, and make t a const*
Move i.tm.operand_types[] swap to immediately after the copy.
* config/tc-i386.h (LinearAddress): Define.
* config/tc-i386.c (md_assemble): If LinearAddress is set for the
instruction, don't use a default segment.
OBJ_AOUT to ifdef OBJ_ELF.
(md_apply_fix3): When mangling 32 bit PC relative reloc for
BFD_ASSEMBLER, handle one ELF case for COFF as well, and add a PE
case.
* write.c (fixup_segment): Change special case for i386-coff to
not apply for i386-pe.
* config/obj-coff.c (coff_adjust_section_syms): Only count fixups
which were not done.
(coff_frob_file_after_relocs): Rename from coff_frob_file.
(coff_format_ops): Initialize frob_file_after_relocs field rather
than frob_file field.
* config/obj-coff.h (coff_frob_file): Don't declare.
(coff_frob_file_after_relocs): Declare.
(obj_frob_file): Don't define.
(obj_frob_file_after_relocs): Define.
* configure.in: Set bfd_gas to yes for i386-*-cygwin32.
* configure: Rebuild.
* frags.c (frag_var): Change offset parameter to offsetT.
(frag_variant): Likewise.
* frags.h (frag_variant, frag_var): Update declarations.
* config/tc-m68k.c (struct m68k_it): Change foff field to
offsetT.
(add_frag): Change off parameter to offsetT.
* Several files: Add casts to calls to frag_var.
#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.
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.
(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_".
* 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.
(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.
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.)
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.
