Commit graph

77 commits

Author SHA1 Message Date
Ian Lance Taylor
a043f579df Mon Feb 12 15:16:29 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
Support for OBJ_ELF on m68k, mostly inside #ifdef OBJ_ELF:
	* config/m68k-parse.h (enum pic_relocation): Define.
	(struct m68k_exp): Add pic_reloc field.
	* config/tc-m68k.h (TC_RELOC_RTSYM_LOC_FIXUP): Define.
	(tc_fix_adjustable): Define to call tc_m68k_fix_adjustable.
	(NO_RELOC): Define to BFD_RELOC_NONE if BFD_ASSEMBLER, to zero
	otherwise.
	* config/tc-m68k.c: Delete definition of NO_RELOC.
 	(struct m68k_it): Add pic_reloc field.
	(add_fix): Copy over pic_reloc field.
	(md_pseudo_table): Interpret .align parameter as byte count.
	(mote_pseudo_table): Likewise.
	(tc_m68k_fix_adjustable): New function.
	(get_reloc_code): New function.
	(md_assemble): Use it as last argument to fix_new_exp.
	(md_apply_fix_2): For a relocation against a symbol don't put the
	addend into the data.
	(tc_gen_reloc): Different addend computation for OBJ_ELF.
	(m68k_ip): Don't relax an operand that requires pic relocation.
	(md_begin): Align .text, .data and .bss on 4 byte boundary by
	default.
	* write.c (fixup_segment): Don't add symbol value to addend if
 	TC_M68K and OBJ_ELF.
	* config/m68k-parse.y (yylex): Handle @PLTPC, etc.
	(motorola_operand): Add rule for `(zapc, EXPR)'.
1996-02-12 20:33:06 +00:00
Michael Meissner
96fe71e1d5 Fix PR 8255 1995-10-24 18:59:05 +00:00
Ian Lance Taylor
f00f5ecd1d * write.c (relax_and_size_seg): Change to the segment we are
relaxing, in case md_convert_frag, called by cvt_frag_to_fill,
	wants to call fix_new.
	* config/tc-m68k.c (m68k_ip): Permit PC relative code if the
	segment of the symbol is the current segment, not just in
	text_section.
	(md_convert_frag_1): Don't call subseg_change.
	(md_estimate_size_before_relax): Likewise.
1995-09-13 17:19:27 +00:00
Steve Chamberlain
305a3af6e3 Thu Aug 31 16:41:06 1995 steve chamberlain <sac@slash.cygnus.com>
* write.c (fixup_segment): Remove change of 29th.
	* config/tc-{i386,arm}.h (TC_FORCE_RELOCATION): Keep RVA relocs.
1995-08-31 23:46:47 +00:00
Ian Lance Taylor
5c800455bf * frags.c (frag_align): Handle absolute_section.
* write.c (record_alignment): Likewise.
1995-08-13 21:19:00 +00:00
Michael Meissner
c7d7eed0a8 Allow large addends for BFD_RELOC_{LO16,HI16,HI16_S} relocs. 1995-08-11 17:36:54 +00:00
Ian Lance Taylor
e120d9fbcd * write.c (adjust_reloc_syms): Check that symbol is not NULL
before checking sy_mri_common.
	(fixup_segment): Likewise.
	* config/obj-coff.c (fixup_segment): Likewise.
1995-08-09 19:34:00 +00:00
Ian Lance Taylor
1356d77df3 * struc-symbol.h (struct symbol): Add sy_mri_common bit.
* 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.
1995-08-08 21:41:30 +00:00
Ken Raeburn
d4083e293a * write.c (relax_align): Add extra padding for linkrelax only if
LINKER_RELAXING_SHRINKS_ONLY is defined.
* config/tc-i960.h (LINKER_RELAXING_SHRINKS_ONLY): Define it.
* doc/internals.texi (Relaxation): Write up some stuff on linker relaxing and
LINKER_RELAXING_SHRINKS_ONLY.
1995-08-08 06:54:30 +00:00
Ken Raeburn
f7da4a99d4 fix more compilation bugs 1995-07-12 20:45:57 +00:00
Ian Lance Taylor
5767cfb748 Add SPARC ELF PIC support.
* write.c (fixup_segment): Pass fixP to TC_RELOC_RTSYM_LOC_FIXUP,
	not fixP->fx_r_type.
	* config/tc-sparc.c (sparc_pic_code): New global variable.
	(md_apply_fix): If generating PIC, adjust fx_addnumber for any non
	PC relative reloc.
	(tc_gen_reloc): If generating PIC, adjust various reloc types.
	Remove fx_pcrel assert, since it is no longer true.
	(md_parse_option): Handle -K PIC.
	* config/tc-sparc.h (sparc_pic_code): Declare if OBJ_ELF.
	(TC_RELOC_RTSYM_LOC_FIXUP): Define if OBJ_ELF.
	(tc_fix_adjustable): Don't adjust PC relative relocs if PIC.
	* config/tc-i386.h (TC_RELOC_RTSYM_LOC_FIXUP): Take a fixp, not a
	reloc type.
PR 7131.
1995-07-07 17:03:21 +00:00
Ken Raeburn
a2a5a4fa41 fsf address update 1995-07-06 21:18:08 +00:00
Ken Raeburn
c151fd1e13 m68k fixes from Andreas Schwab, with minor changes 1995-06-21 22:43:13 +00:00
Michael Meissner
3f81f3cfe4 If -mrelocatable, warn about relocs that are incompatible. 1995-03-03 21:34:36 +00:00
Ian Lance Taylor
b04bc42379 tipo 1995-01-21 23:19:17 +00:00
Ken Raeburn
8e86815b1c Cleanup of VAX and VMS code, from Pat Rankin:
* config/obj-vms.c: Changed exported function names to lower case.  (Changed
call sites in write.c.)  Declare VMS system function names used, conditional on
actually being on VMS.  Changed many functions that returned no useful value to
now be declared to return void.  Removed many unused variables.  Supply missing
return statements or values.  Supply `default' case in switch statements.
Ensure local variables get initialized.
* config/tc-vax.c: Minor changes to silence "gcc -Wall".
* config/obj-vms.h, config/tc-vax.h: Added some missing declarations.
1995-01-19 20:01:07 +00:00
Ian Lance Taylor
6ece68f0b3 * write.c (fix_new_internal): Clear fx_bsr on those targets which
use it.
1995-01-19 00:17:57 +00:00
Ken Raeburn
cd3b81bd4c Handle .space directive with non-constant operand:
* read.c (s_space): Rewrite to handle general expressions.  Generate rs_space
frags for non-constant values.
* write.c (cvt_frag_to_fill): Treat rs_align_code and rs_space like rs_align
and rs_org.  Verify that fr_offset is non-negative, and force frag type to
rs_fill only after assertion checks.
(relax_segment): Treat rs_align_code like rs_align.  Treat rs_space like rs_org
in the first switch; in the second, force the operand to a constant, and use it
for the growth size.
1994-12-31 00:08:40 +00:00
Ken Raeburn
a55774a124 * write.c (write_relocs) [RELOC_EXPANSION_POSSIBLE]: Use bfd_install_relocation. 1994-12-10 02:10:44 +00:00
Ken Raeburn
9dc6c00f8d * write.c (print_fixup): Print source location on first line. Show fx_r_type
and fx_addsy fields.
1994-09-29 23:00:45 +00:00
Ken Raeburn
4acf8c78e6 (fix_new_exp): Handle O_add by creating an expression-valued symbol, and
calling fix_new_exp recursively.
(adjust_reloc_syms): If a fixup's symbol value is a sum of an undefined symbol
and a constant, fold the constant into the fixup, and refer to the undefined
symbol directly.  Then process the fixup again from scratch.
(write_object_file): Before calling adjust_reloc_syms, make a pass through the
symbol list trying to resolve values.

(print_fixup): New routine, for debugging.
(write_relocs): Call bfd_install_relocation.  Deleted various hacks for working
around problems with bfd_perform_relocation.
1994-09-28 19:20:11 +00:00
Ken Raeburn
d9d6f09465 * write.c (fixup_segment): Test TC_RELOC_RTSYM_LOC_FIXUP on fixup before
processing same-section pcrel relocations.
(TC_RELOC_RTSYM_LOC_FIXUP): Default to 1.
1994-09-13 02:11:25 +00:00
David MacKenzie
def66e248c * as.h: Replace flagseen with separate variables.
* as.c (parse_args): Set them.  Don't accept -1 option, or -v
	explicitly (it's a synonym for --version).
	* as.c, input-scrub.c, messages.c, read.c, symbols.c, write.c,
	config/obj-aout.c, config/obj-aout.h, config/obj-bout.c,
	config/obj-bout.h, config/obj-coff.c, config/obj-coff.h,
	config/obj-vms.c, config/tc-hppa.c, config/tc-i386.c,
	config/tc-i960.c, config/tc-m68k.c, config/tc-mips.c,
	config/tc-vax.c: Use the new flag variables instead of flagseen.
	* config/tc-vax.c [OBJ_VMS]: Recognize -+, -1, -v, and document in
	usage.
1994-06-03 20:59:20 +00:00
Ian Lance Taylor
1b96bdce15 * subsegs.h (segment_info_type): Use fix_tail field even if
BFD_ASSEMBLER.
	* subsegs.c (subseg_change): Initialize fix_tail field.
	(subseg_get): Likewise.
	* write.c (frags_chained): New static variable.
	(fix_new_internal): If frags_chained is set, use fix_root and
	fix_tail from seg_info (now_seg), rather than frchain_now.
	(chain_frchains_together_1): Set fix_tail field.
	(chain_frchains_together): Set frags_chained.
1994-05-02 21:26:55 +00:00
Ken Raeburn
1cf7548efc * write.c (symbol_table_frozen): New variable, to be set after bfd_set_symtab
is called.
(dump_section_relocs): Note whether a symbol is a section symbol or not.
(adjust_reloc_syms): For now, always supply an absolute symbol for fixups
without symbols but not yet `done'.  Use section_symbol to get the symbol,
instead of going directly for abs_symbol.
(write_relocs) [DEBUG4]: Abort if any symbol referred to by a reloc is not a
section symbol and is not in the symbol table.
(set_symtab): New function, broken out from write_object_file.  Counts symbol
table instead of relying on an earlier count.
(write_object_file): Call set_symtab, but do it after potentially invoking the
*_frob_file macros.  Don't bother counting symbols.  Call symbol_remove,
instead of expanding it in place.  Moved the conditionalized `object_file_size'
declaration down to conditionalized block where it's used.  When using the
absolute symbol for a fixup without a symbol, set sy_used_in_reloc.
(write_object_file) [BFD_ASSEMBLER]: Call section_symbol to get the correct
symbol for the absolute section.
1994-03-19 02:36:09 +00:00
Ken Raeburn
741f4d6676 write.c (write_object_file): Removed register declarations. 1994-02-18 19:53:26 +00:00
Ken Raeburn
e8501a72ce (adjust_reloc_syms): Use abs_symbol instead of calling section_symbol. 1994-02-09 00:04:43 +00:00
Ken Raeburn
df44a8523f * write.c (write_relocs): Print some sensible error message if
bfd_perform_relocation returns bfd_reloc_overflow.
1994-02-08 21:02:35 +00:00
Ian Lance Taylor
3a0e38ee59 Don't refer to new fields unless BFD_ASSEMBLER (from sac). 1994-02-05 22:17:20 +00:00
Ian Lance Taylor
262b22cd10 Changed relocs to be based on subsegments (when BFD_ASSEMBLER).
* subsegs.h (struct frchain): If BFD_ASSEMBLER, added new fields
	fix_root and fix_tail.
	(segment_info_type): If BFD_ASSEMBLER, don't define fix_tail
	field.
	* write.c (fix_new_internal): If BFD_ASSEMBLER, set fix_rootP and
	fix_tailP based on frchain_now, not seg_info (now_seg).
	(chain_frchains_together_1): Chain the subsegment relocs together.
	* subsegs.c (subseg_change): Don't clear fix_tail field.
	(subseg_get): Likewise.
	* literal.c (add_to_literal_pool): Look through the relocs via
	frchain_now, not seginfo.

	* write.c (write_object_file): Simplified usage of obj_frob_symbol
	and tc_frob_symbol.  Always call both if the symbol is going to be
	output.

	* write.c (relax_segment): Use %ld rather than %d when printing
	fragP->fr_var, and cast it to long.
1994-02-05 05:29:42 +00:00
Ken Raeburn
c79e67a3b7 * write.c (write_object_file): If tc_frob_file is defined, call it
just before calling obj_frob_file.
* config/tc-alpha.c (alpha_gp_value): Renamed from gp_value (refs changed), made
non-static.
(getExpression): Return void.
(select_gp_value): Abort if gp_value is non-zero.  Delete call to non-existent
bfd_set_gp_value.
(alpha_validate_fix): Function deleted.
(alpha_frob_symbol): Function deleted.
(alpha_local_label): Function deleted.
(alpha_frob_file): Renamed from alpha_end.
* config/tc-alpha.h (alpha_frob_symbol, alpha_validate_fix, alpha_local_label,
alpha_end): Declarations deleted.
(alpha_gp_value, alpha_frob_file): Declare.
(tc_frob_symbol, TC_VALIDATE_FIX, md_end): Macros deleted.
(LOCAL_LABEL): Move code here from tc-alpha.c:alpha_local_label.
(md_convert_frag): Simplified slightly.
(tc_frob_file): New macro.
1994-01-30 23:21:55 +00:00
Ken Raeburn
98c6bbbe43 * as.h: If __GNUC__ and inline are both undefined, define inline away.
* write.c (cvt_frag_to_fill): Don't assume that fr_var for rs_align or rs_org
frags will be 1.
(relax_segment): For rs_align, if fr_var is not 1, complain if
required padding is not a multiple of the size of the pad pattern.
(fixup_segment): Leave gp-relative relocations alone.  For pcrel relocations
referring to the same segment, clear fx_pcrel when clearing fx_addsy.
* as.h: Adjust comments on rs_align.

* write.c, config/obj-{aout,bout,coff*}.c, config/tc-sparc.c: Query the fx_done
field instead of fx_addsy to see if the fixup still needs to be applied.  Set
fx_done and clear fx_addsy both, for now.  If TC_HANDLES_FX_DONE isn't defined,
assume md_apply_fix will only clear fx_addsy, and set fx_done accordingly after
returning.
* config/tc-sparc.h (TC_HANDLES_FX_DONE): Define.

* config/obj-coff.c (dot_text_symbol, dot_data_symbol, dot_bss_symbol): Defined
here, static.

* config/obj-aout.c [BFD_ASSEMBLER]: Undef NO_RELOC before including aout/aout64.h.

* write.c (write_object_file): If EMIT_SECTION_SYMBOLS is false, don't write
out a section symbol even if it's used in a relocation; assume relocations will
handle section numbers somehow.  Rename "punt_it" label to "punt_it_if_unused"
to reflect it's true use.
(EMIT_SECTION_SYMBOLS): Default to 1.
(adjust_reloc_syms): Don't create a new symbol for an absolute
reference; just use the absolute section symbol.
(write_relocs): Make printout of reloc values dependent on flag DEBUG3, not
DEBUG2.
* config/obj-aout.h (EMIT_SECTION_SYMBOLS): Define as 0.
* config/obj-ecoff.h (EMIT_SECTION_SYMBOLS): Ditto.
1994-01-28 01:21:53 +00:00
Ken Raeburn
e67a0640a0 * write.c (adjust_reloc_syms) [RELOC_REQUIRES_SYMBOL]: If no symbol is present
(i.e., relocation against absolute), create a phony local symbol, and use it in
the reloc.
(fixup_segment): When adjusting a reloc with an absolute symbol, have
TC_FORCE_RELOCATION control clearing add_symbolP too.

* config/tc-sparc.h (RELOC_REQUIRES_SYMBOL): Define.
1993-12-20 21:53:01 +00:00
Ken Raeburn
6868afe647 * as.c (main): Only invoke md_end if it's defined as a macro.
* tc.h (md_end): Don't declare it.
* config/tc-*.[ch] (md_end): Deleted, in cases where it doesn't do anything.
* config/tc-vax.c (vip_end): Deleted null function.
* config/tc-mips.c (md_mips_end): Renamed from md_end.
* config/tc-mips.h (md_mips_end): Declare.
(md_end): New macro, calls md_mips_end.

* write.c (write_object_file): Don't close output file.
* as.c (main): Close output file (if needed) after calling listing_print, which
should be after calling write_object_file, which sets the frag addresses.
1993-12-20 16:48:00 +00:00
Ken Raeburn
f5c324244d (number_to_chars_*): Delete bogus range checks. 1993-12-09 01:08:37 +00:00
Jeff Law
335d35c8bc * write.c (TC_FORCE_RELOCATION): Provide a default definition.
(fixup_segment): Allow the target machine to specify that a
        relocation must be generated for a particular fixup.  Remove
        #ifndef TC_HPPA hack.

        * config/tc-hppa.h (TC_FORCE_RELOCATION): Define.

        * config/tc-hppa.c (md_apply_fix_1): Never change fx_addsy to
        be NULL.  Only fixup_segment is supposed to do that.
        (hppa_force_relocation): New function.
1993-11-30 21:43:15 +00:00
Ian Lance Taylor
5f6efd5a5e Get ECOFF gas to work again after this morning's checkins. 1993-11-18 21:00:19 +00:00
Ian Lance Taylor
a58374d72a * write.c (is_dnrange): Do not define if md_relax_frag is defined.
(relax_segment): If md_relax_frag is defined, use it to handle a
	frag of type rs_machine_dependent rather than looking through
	md_relax_table.

	* write.c (relax_and_size_seg): Don't set SEC_HAS_CONTENTS for a
	bss section.  Set SEC_RELOC if there are any relocations, even for
	a zero size section.

	* write.c (write_relocs): In RELOC_EXPANSION_POSSIBLE case, based
	data offset on reloc[0]->address rather than reloc[j]->address, so
	that multiple relocs can affect different memory locations.

	* write.c (chain_frchains_together, relax_and_size_seg,
	adjust_reloc_syms, write_relocs): Make third argument PTR, not
	char *, to match definition of bfd_map_over_sections.
1993-11-17 23:06:12 +00:00
Jeff Law
0f894895a1 * write.c (chain_frchains_together): Update pointer to last
frag for a segment in the seginfo structure.
1993-11-05 01:01:18 +00:00
Jeff Law
c43d56f78c * Add support for marker type relocations. These mark areas
of interest to the linker.  ENTRY/EXIT relocations for SOM are
	an example of marker relocations.
	* write.c (write_relocs): Instead of assuming size of a relocation
	is 4 bytes, pick up the size from relocation itself.
	(fixup_segment): Do not complain that a value is too small for
	marker relocations.
1993-11-02 06:31:36 +00:00
Jeff Law
20b39b6f05 * write.c (relax_and_size_seg): Correct test to determine
if the section's size was rounded up.
1993-10-31 08:06:11 +00:00
Ken Raeburn
84fa9814e9 * write.c (write_relocs): For relocs that are pc_relative and
pcrel_offset and not partial_inplace, adjust reloc->addend to
	compensate for a bfd_perform_relocation bug.
1993-10-25 17:49:24 +00:00
Ken Raeburn
efa0c22e67 Various arious PA changes from Utah.
V9 bugfix.
See changelog...
1993-10-21 20:03:19 +00:00
Ian Lance Taylor
f37449aaf3 * write.c (write_contents): Don't crash if seginfo is NULL.
* config/obj-ecoff.c (ecoff_frob_file): Write out register masks
	by modifying .reginfo section, not by directly modifying BFD
	backend data.
1993-10-11 21:40:10 +00:00
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
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
Stan Shebs
4064305ec0 Changes to support stabs-in-coff 1993-09-07 17:39:56 +00:00
Ken Raeburn
13e9182dd6 (write_relocs) [RELOC_EXPANSION_POSSIBLE]: Declare tc_gen_reloc correctly. 1993-09-01 19:32:36 +00:00
Ken Raeburn
b23f674392 (write_object_file): Test DEBUG_SYMS instead of DEBUG for verifying sym chain.
(merge_data_into_text, relax_and_size_all_segments): New fns, split out from
write_object_file.
1993-08-05 21:21:30 +00:00
Ian Lance Taylor
7a0405b989 Don't use #ifdef inside macro arguments. 1993-07-22 04:44:54 +00:00