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37 Commits

Author SHA1 Message Date
Alan Modra
9e40345d0e * write.c (relax_segment <rs_space>): Check the section of a 
symbol to determine whether it is absolute rather than comparing
	its frag against zero_address_frag as listings play tricks with
	frags.
 2001-05-27 12:17:38 +00:00
Alan Modra
54d3cad90d * write.c (relax_segment <rs_space>): Calculate growth using 
addresses before stretch.  Prevent repeated error messages.
	From Peter Jakubek  <pjak@snafu.de>
	Use as_bad_where and as_warn_where to pinpoint errors.
 2001-05-26 12:45:15 +00:00
Alan Modra
766c03c9fa * write.c (relax_segment): Don't zap fr_symbol when relaxing. 2001-05-24 23:33:00 +00:00
Alan Modra
e027f3e8a4 * write.c (write_object_file): Set finalize_syms = 1 before 
size_seg is called.
 2001-05-24 08:19:32 +00:00
Alan Modra
6386f3a767 * symbols.c (resolve_symbol_value): Remove "finalize" param, 
instead use finalize_syms directly.  Don't treat expressions
	specially with regard to finalize_syms.  Update calls to self.
	(resolve_local_symbol): Update call to resolve_symbol_value.
	(S_GET_VALUE): Likewise.  Return resolve_symbol_value if
	!finalize_syms.
	* symbols.h (resolve_symbol_value): Update prototype.
	* config/obj-aout.c (obj_crawl_symbol_chain): Update call
	to resolve_symbol_value.
	* config/obj-bout.c (obj_crawl_symbol_chain): Likewise.
	* config/obj-coff.c (do_relocs_for): Likewise.
	(yank_symbols): Likewise.
	(fixup_segment): Likewise.
	* config/obj-vms.c (obj_crawl_symbol_chain): Likewise.
	* config/tc-mips.c (md_convert_frag): Likewise.
	* config/tc-ppc.c (ppc_frob_symbol): Likewise.
	(ppc_fix_adjustable): Likewise.
	* dwarf2dbg.c (dwarf2dbg_estimate_size_before_relax): Likewise.
	(dwarf2dbg_convert_frag): Likewise.
	* ehopt.c (eh_frame_estimate_size_before_relax): Likewise.
	(eh_frame_convert_frag): Likewise.
	* expr.c (make_expr_symbol): Likewise.
	* write.c (adjust_reloc_syms): Likewise.
	(write_object_file): Likewise.
	(relax_segment): Likewise.
	(fixup_segment): Likewise.
	(finalize_syms): Init to zero, and update comment.
	(write_object_file): Set finalize_syms to 1 rather than 2.
	* doc/internals.texi (sy_value): Mention finalize_syms.
	(S_GET_VALUE): Remove restriction on when S_GET_VALUE can be called.
 2001-05-22 10:23:50 +00:00
Jakub Jelinek
f5fa8ca231 bfd/ 
* libbfd-in.h (_bfd_merge_section): New.
	(_bfd_write_merged_section): New.
	(_bfd_merged_section_offset): New.
	* libbfd.h: Rebuilt.
	* linker.c (_bfd_generic_link_output_symbols): Handle
	discard_sec_merge.
	* aoutx.h (aout_link_write_symbols): Likewise.
	* pdp11.c (aout_link_write_symbols): Likewise.
	* elflink.h (elf_link_add_object_symbols): Call _bfd_merge_section.
	(elf_bfd_final_link): Adjust global symbols pointing into SEC_MERGE
	sections.
	(elf_link_sec_merge_syms): New.
	(elf_link_input_bfd): Call _bfd_merged_section_offset
	and _bfd_write_merged_section.
	Handle discard_sec_merge.
	* elf-bfd.h (struct elf_link_hash_table): Add merge_info
	field.
	(struct bfd_elf_section_data): Likewise.
	* elf.c (_bfd_elf_make_section_from_shdr): Set SEC_MERGE and
	SEC_STRINGS section flags and entsize from their ELF counterparts.
	(_bfd_elf_link_hash_table_init): Initialize merge_info.
	(elf_fake_sections): Set SHF_MERGE, SHF_STRINGS and sh_entsize
	from their BFD counterparts.
	* merge.c: New file.
	* Makefile.am: Add strtab.lo.
	* Makefile.in: Rebuilt.
include/
	* bfdlink.h (bfd_link_discard): Add discard_sec_merge.
gas/
	* config/obj-elf.c (obj_elf_change_section): Add entsize argument,
	handle SHF_MERGE and SHF_STRINGS.
	(obj_elf_parse_section_letters): Set SHF_MERGE and SHF_STRINGS.
	(obj_elf_section): Allow additional argument specifying entity size.
	* write.c (adjust_reloc_syms): Keep relocations against local symbols
	in SEC_MERGE sections.
ld/
	* ldmain.c (main): Default to discard_sec_merge.
	* lexsup.c (OPTION_DISCARD_NONE): Define.
	(ld_options): Add --discard-none.
	(parse_args): Handle OPTION_DISCARD_NONE.
	* ldlang.c (wild_doit): SEC_MERGE should be set in the output
	section only if SEC_MERGE and SEC_STRINGS flags and entsize of
	all its input sections match.
 2001-04-13 00:34:36 +00:00
Hans-Peter Nilsson
aacb52510a * write.c (write_object_file): Reset broken word state before 
calling relax_seg.
 2001-04-04 03:05:47 +00:00
Alan Modra
e46d99eb07 Multi-pass relaxation machinery. 2001-03-30 02:19:36 +00:00
Nick Clifton
37006e4391 fix_new_exp: Print an error if passed a register. 2001-03-23 18:15:49 +00:00
Alan Modra
38686296b3 Use `relax_marker' instead of fragile address test code to determine 
whether a frag's fr_address has been updated.
 2001-03-20 03:12:01 +00:00
Nick Clifton
f7e42eb4af Fix copyright notices 2001-03-08 23:24:26 +00:00
Ian Lance Taylor
c842b53ae1 * write.c (is_dnrange): Stop as soon as the address becomes 
larger.
	(relax_frag): Add segment parameter.  Only call symbol_get_frag
	once.  Only call is_dnrange if the symbol is in the same segment,
	and the symbol address is larger.
	(relax_segment): Pass segment to md_relax_frag and relax_frag.
	* write.h (relax_frag): Update declaration.
	* config/tc-fr30.c (fr30_relax_frag): Add segment parameter.  Pass
	it to relax_frag.
	* config/tc-m32r.c (m32r_relax_frag): Likewise.
	* config/tc-m32r.h (md_relax_frag): Add segment parameter.
	(m32r_relax_frag): Update declaration.
	* config/tc-mips.h (md_relax_frag): Add segment parameter.
	* config/tc-tic54x.h (md_relax_frag): Likewise.
	* doc/internals.texi (CPU backend): Update documentation for
	md_relax_frag.
 2001-02-13 21:27:52 +00:00
Richard Henderson
799051fc87 * write.c (subsegs_finish): Fix thinko last change -- don't 
"optimize" the alignment == 0 case.
 2000-12-28 19:14:37 +00:00
Richard Henderson
0a9ef43907 * as.h (rs_align_test): New. 
* frags.c (NOP_OPCODE): Move default from read.c.
	(MAX_MEM_FOR_RS_ALIGN_CODE): New default.
	(frag_align_code): New.
	* frags.h (frag_align_code): Declare.
	* read.c (NOP_OPCODE): Remove.
	(do_align): Use frag_align_code.
	* write.c (NOP_OPCODE): Remove.
	(get_recorded_alignment): New.
	(cvt_frag_to_fill): Handle rs_align_test.
	(relax_segment): Likewise.
	(subsegs_finish): Align last subseg in section to the
	section alignment.  Use frag_align_code.
	* write.h (get_recorded_alignment): Declare.
	* config/obj-coff.c (size_section): Handle rs_align_test.
	(fill_section, fixup_mdeps): Likewise.
	(write_object_file): Use frag_align_code.

	* config/tc-alpha.c (alpha_align): Use frag_align_code.
	(alpha_handle_align): New.
	* config/tc-alpha.h (HANDLE_ALIGN): New.
	(MAX_MEM_FOR_RS_ALIGN_CODE): New.

	* config/tc-i386.h (md_do_align): Use frag_align_code.
	(MAX_MEM_FOR_RS_ALIGN_CODE): New.

	* config/tc-ia64.c (ia64_md_do_align): Don't do code alignment.
	(ia64_handle_align): New.
	* config/tc-ia64.h (HANDLE_ALIGN): New.
	(MAX_MEM_FOR_RS_ALIGN_CODE): New.

	* config/tc-m32r.c (m32r_do_align): Remove.
	(m32r_handle_align): New.
	(fill_insn): Use frag_align_code.
	* config/tc-m32r.h (md_do_align): Remove.
	(HANDLE_ALIGN, MAX_MEM_FOR_RS_ALIGN_CODE): New.
	* config/tc-m88k.c, config/tc-m88k.h: Similarly.
	* config/tc-mips.c, config/tc-mips.h: Similarly.

	* config/tc-sh.c (sh_cons_align): Use rs_align_test.
	(sh_handle_align): Likewise.  Handle rs_align_code.
	(sh_do_align): Remove.
	* config/tc-sh.h (md_do_align): Remove.
	(MAX_MEM_FOR_RS_ALIGN_CODE): New.

	* config/tc-sparc.c (sparc_cons_align): Use rs_align_test.
	(sparc_handle_align): Likewise.  Handle rs_align_code.
	* config/tc-sparc.h (md_do_align): Remove.
	(MAX_MEM_FOR_RS_ALIGN_CODE): New.
 2000-12-28 10:07:56 +00:00
Richard Henderson
220e750f6f * dwarf2dbg.c: Rewrite from scratch. Queue all debugging output 
until dwarf2_finish; use relaxation to get cross-fragment offsets;
        thread multiple subsegments properly; handle multiple code
        sections properly; emit proper compilation unit info for assembler
        generated debugging.

        * as.h (enum _relax_state): Add rs_dwarf2dbg.
        * dwarf2dbg.h (struct dwarf2_line_info): Remove filename.
        (dwarf2dbg_estimate_size_before_relax): Declare.
        (dwarf2dbg_relax_frag, dwarf2dbg_convert_frag): Declare.
        * write.c: Include dwarf2dbg.h.
        (cvt_frag_to_fill): Handle rs_dwarf2dbg.
        (relax_segment): Likewise.
 2000-11-29 21:42:41 +00:00
Kazu Hirata
ef99799a42 2000-11-06 Kazu Hirata <kazu@hxi.com> 
* as.c: Fix formatting.
	* dwarf2dbg.c: Likewise.
	* itbl-ops.c: Likewise.
	* listing.c: Likewise.
	* macro.h: Likewise.
	* messages.c: Likewise.
	* read.c: Likewise.
	* subsegs.c: Likewise.
	* subsegs.h: Likewise.
	* write.c: Likewise.
 2000-11-07 01:18:45 +00:00
Alan Modra
44852b190c Make elf section symbols global for link-once sections. 2000-10-07 12:52:15 +00:00
Alan Modra
927781e250 Miscellaneous tiny fixes. 2000-09-05 03:53:02 +00:00
Alexandre Oliva
aca719bf68 * write.c (TC_FIX_ADJUSTABLE): Remove the duplicate. 2000-08-23 18:20:44 +00:00
Alexandre Oliva
8f36cd18af * write.c (TC_FIX_ADJUSTABLE): Define to 1, if not defined. 
(fixup_segment) Use it instead of TC_DONT_FIX_NON_ADJUSTABLE.
* config/tc-i386.h (TC_DONT_FIX_NON_ADJUSTABLE): Remove.
<OBJ_ELF, OBJ_COFF, TE_PE> (TC_FIX_ADJUSTABLE): Define.
* config/tc-arm.h (TC_DONT_FIX_NON_ADJUSTABLE): Remove.
<OBJ_ELF> (TC_FIX_ADJUSTABLE): Define.
* config/tc-i960.h, config/tc-m68k.h, config/tc-v850.h:
Likewise.
 2000-08-22 04:52:40 +00:00
Eric Christopher
58a77e418b 2000-08-22 Eric Christopher <echristo@cygnus.com> 
* config/tc-mn10300.c: (md_apply_fix): New function.
	(mn10300_force_relocation): New function.
	(mn10300_fix_adjustable): New function.

	* config/tc-mn10300.h: (TC_FORCE_RELOCATION): Define.
	(TC_HANDLES_FX_DONE): Define.
	(obj_fix_adjustable): Define.
	(MD_APPLY_FIX3): Define.
	(TC_LINKRELAX_FIXUP): Define.

	* write.c: (TC_LINKRELAX_FIXUP):  Define if not
	previously defined.
	(fixup_segment): Use TC_LINKRELAX_FIXUP.

	* doc/internals.texi: Document TC_LINKRELAX_FIXUP.
 2000-08-22 01:20:41 +00:00
Alexandre Oliva
021986386e * write.c (fixup_segment) [TC_DONT_FIX_NON_ADJUSTABLE]: Use 
obj_fix_adjustable() and tc_fix_adjustable() to tell whether to
add a symbol's address.  Removed all target-specific #ifdefs that
used to accomplished the same.
* config/tc-v850.h (TC_DONT_FIX_NON_ADJUSTABLE): Define.
* config/tc-m68k.h (TC_DONT_FIX_NON_ADJUSTABLE): Define.
* config/tc-arm.h (TC_DONT_FIX_NON_ADJUSTABLE): Define.
* config/tc-i960.h (TC_DONT_FIX_NON_ADJUSTABLE): Define.
* config/tc-i386.h (TC_DONT_FIX_NON_ADJUSTABLE): Define.
 2000-08-18 18:45:05 +00:00
Nick Clifton
efaf0ba464 Fix formatting. 2000-07-20 20:07:09 +00:00
Nick Clifton
6aa4f5169f Fix previous delta so that it is only used for TE_GO32 and not !TE_PE. 2000-06-29 23:10:08 +00:00
Nick Clifton
dbddefbfe6 Set vma and lma for segment when using the BFD_ASSEMBLER for COFF format files. 2000-06-29 22:51:58 +00:00
Hans-Peter Nilsson
753f6b125b * write.c (write_object_file) [! WORKING_DOT_WORD]: If defined, 
call TC_CHECK_ADJUSTED_BROKEN_DOT_WORD for each word after
	adjustments.
 2000-04-03 12:05:31 +00:00
Ian Lance Taylor
945a1a6b98 * write.c (write_relocs): Call SET_SECTION_RELOCS if it is 
defined.
	* config/obj-coff.h (SET_SECTION_RELOCS): Define.
	* doc/internals.texi (Object format backend): Document
	SET_SECTION_RELOCS.
 1999-09-12 03:44:42 +00:00
Ian Lance Taylor
e723ef7c5f * write.c (dump_section_relocs): Call print_symbol_value_1 to 
print the symbol, rather than printing it here.

1999-09-11  Donn Terry  <donn@interix.com>

	* write.c (adjust_reloc_syms): Print adjusted fixup.
 1999-09-11 14:59:14 +00:00
Alan Modra
b77ad1d4c9 Fix an overflow checking bug uncovered when a 32 bit target is compiled 
with a 64 bit bfd.
 1999-07-28 23:19:26 +00:00
Ian Lance Taylor
14ad458a39 * write.c (cvt_frag_to_fill): Use frag file and line in rs_org 
error message.
	(relax_segment): Likewise.  After giving a rs_org error, convert
	the frag to rs_align to avoid cascading errors.
 1999-07-14 14:02:33 +00:00
Ian Lance Taylor
ab9da55419 * Many files: Changes to avoid gcc warnings: Add ATTRIBUTE_UNUSED 
as appropriate.  Fill in structure initializations.  Add variable
	initializations.  Add casts.
	* dwarf2dbg.c (print_stats): Change i to size_t.
	* listing.c (listing_listing): Change list_line to unsigned int.
 1999-07-11 20:20:04 +00:00
Ian Lance Taylor
7565ed77a1 * write.c (adjust_reloc_syms): Rather than never reducing reloc 
which refer to symbols in linkonce sections, permit reducing the
	relocs if the symbol is local.
 1999-06-12 22:15:51 +00:00
Ian Lance Taylor
b9e57a387a * subsegs.c (subseg_text_p): New function. 
* as.h (subseg_text_p): Declare.
	* read.c (do_align): Use subseg_text_p to set the default fill.
	* write.c (subsegs_finish): Likewise.
	* config/obj-coff.c (write_object_file): Likewise.
	* config/tc-i386.h (md_maybe_text): Don't define.
	(md_do_align): Use subseg_text_p to set the default fill.
	* config/tc-m32r.c (m32r_do_align): Likewise.
	* config/tc-sh.c (sh_do_align): Likewise.
	* config/tc-sparc.h (md_do_align): Likewise.
 1999-06-12 16:49:51 +00:00
Ian Lance Taylor
76171f81c7 1999-06-11 Martin Dorey <mdorey@madge.com> 
* write.c (fixup_segment): Don't add symbol value for i960 ELF.
	* config/tc-i960.c (s_leafproc): Don't call tc_set_bal_of_cal if
	OBJ_ELF.
	(md_apply_fix): Simplify BFD_ASSEMBLER handling.
 1999-06-11 19:03:06 +00:00
Ian Lance Taylor
49309057b4 Add support for storing local symbols in a small structure to save 
memory when assembling large files.
	* as.h: Don't include struc-symbol.h.
	(symbolS): Add typedef.
	* symbols.c: Include struc-symbol.h.
	(local_hash): New static variable.
	(save_symbol_name): New static function, from symbol_create.
	(symbol_create): Call save_symbol_name.
	(local_symbol_count): New static variable.
	(local_symbol_conversion_count): Likewise.
	(LOCAL_SYMBOL_CHECK): Define.
	(local_symbol_make): New static function.
	(local_symbol_convert): New static function.
	(colon): Handle local symbols.  Create local symbol for local
	label name.
	(symbol_table_insert): Handle local symbols.
	(symbol_find_or_make): Create local symbol for local label name.
	(symbol_find_base): Check for local symbol.
	(symbol_append, symbol_insert): Check for local symbols.
	(symbol_clear_list_pointers, symbol_remove): Likewise.
	(verify_symbol_chain): Likewise.
	(copy_symbol_attributes): Likewise.
	(resolve_symbol_value): Handle local symbols.
	(resolve_local_symbol): New static function.
	(resolve_local_symbol_values): New function.
	(S_GET_VALUE, S_SET_VALUE): Handle local symbols.
	(S_IS_FUNCTION, S_IS_EXTERNAL, S_IS_WEAK, S_IS_COMMON): Likewise.
	(S_IS_DEFINED, S_IS_DEBUG, S_IS_LOCAL, S_GET_NAME): Likewise.
	(S_GET_SEGMENT, S_SET_SEGMENT, S_SET_EXTERNAL): Likewise.
	(S_CLEAR_EXTERNAL, S_SET_WEAK, S_SET_NAME): Likewise.
	(symbol_previous, symbol_next): New functions.
	(symbol_get_value_expression): Likewise.
	(symbol_set_value_expression): Likewise.
	(symbol_set_frag, symbol_get_frag): Likewise.
	(symbol_mark_used, symbol_clear_used, symbol_used_p): Likewise.
	(symbol_mark_used_in_reloc): Likewise.
	(symbol_clear_used_in_reloc, symbol_used_in_reloc_p): Likewise.
	(symbol_mark_mri_common, symbol_clear_mri_common): Likewise.
	(symbol_mri_common_p): Likewise.
	(symbol_mark_written, symbol_clear_written): Likewise.
	(symbol_written_p): Likewise.
	(symbol_mark_resolved, symbol_resolved_p): Likewise.
	(symbol_section_p, symbol_equated_p): Likewise.
	(symbol_constant_p): Likewise.
	(symbol_get_bfdsym, symbol_set_bfdsym): Likewise.
	(symbol_get_obj, symbol_set_obj): Likewise.
	(symbol_get_tc, symbol_set_tc): Likewise.
	(symbol_begin): Initialize local_hash.
	(print_symbol_value_1): Handle local symbols.
	(symbol_print_statistics): Print local symbol statistics.
	* symbols.h: Include "struc-symbol.h" if not BFD_ASSEMBLER.
	Declare new symbols.c functions.  Move many declarations here from
	struc-symbol.h.
	(SYMBOLS_NEED_BACKPOINTERS): Define if needed.
	* struc-symbol.h (SYMBOLS_NEED_BACKPOINTERS): Don't set.
	(struct symbol): Move bsym to make it clearly the first field.
	Remove TARGET_SYMBOL_FIELDS.
	(symbolS): Don't typedef.
	(struct broken_word): Remove.
	(N_TYPE_seg, seg_N_TYPE): Move to symbol.h.
	(SEGMENT_TO_SYMBOL_TYPE, N_REGISTER): Likewise.
	(symbol_clear_list_pointers): Likewise.
	(symbol_insert, symbol_remove): Likewise.
	(symbol_previous, symbol_append): Likewise.
	(verify_symbol_chain, verify_symbol_chain_2): Likewise.
	(struct local_symbol): Define.
	(local_symbol_converted_p, local_symbol_mark_converted): Define.
	(local_symbol_resolved_p, local_symbol_mark_resolved): Define.
	(local_symbol_get_frag, local_symbol_set_frag): Define.
	(local_symbol_get_real_symbol): Define.
	(local_symbol_set_real_symbol): Define.
	Define.
	* write.c (write_object_file): Call resolve_local_symbol_values.
	* config/obj-ecoff.h (OBJ_SYMFIELD_TYPE): Define.
	(TARGET_SYMBOL_FIELDS): Don't define.
	* config/obj-elf.h (OBJ_SYMFIELD_TYPE): Add local field.  If
	ECOFF_DEBUGGING, add ECOFF fields.
	(ELF_TARGET_SYMBOL_FIELDS, TARGET_SYMBOL_FIELDS): Don't define.
	* config/obj-multi.h (struct elf_obj_sy): Add local field.  If
	ECOFF_DEBUGGING, add ECOFF fields.
	(ELF_TARGET_SYMBOL_FIELDS, TARGET_SYMBOL_FIELDS): Don't define.
	(ECOFF_DEBUG_TARGET_SYMBOL_FIELDS): Don't define.
	* config/tc-mcore.h: Don't include struc-symbol.h.
	(TARGET_SYMBOL_FIELDS): Don't define.
	(struct mcore_tc_sy): Define.
	(TC_SYMFIELD_TYPE): Define.
	* Many files: Use symbolS instead of struct symbol.  Use new
	accessor functions rather than referring to symbolS fields
	directly.
	* read.c (s_mri_common): Don't add in value of line_label.
	* config/tc-mips.c (md_apply_fix): Correct parenthesization when
	checking for SEC_LINK_ONCE.
	* config/tc-sh.h (sh_fix_adjustable): Declare.
 1999-06-03 00:29:48 +00:00
Alan Modra
6d4d30bb14 / 
Move bitfield overflow checks to after the md_apply_fix call in
fixup_segment so that md_apply_fix has a chance to modify value.
Handle 8 and 16-bit pcrel relocs for i386.
Prototypes and other minor code cleanups.
 1999-05-17 03:21:46 +00:00
Richard Henderson
252b5132c7 19990502 sourceware import 1999-05-03 07:29:11 +00:00