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a161fe5320
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60 Commits

Author SHA1 Message Date
Alan Modra
a161fe5320 gas reloc rewrite. 2002-09-05 00:01:18 +00:00
Alan Modra
df44284ec4 * write.c (BFD_FAST_SECTION_FILL): Remove unused macro. 
(TC_ADJUST_RELOC_COUNT): Tweak param name.
	(TC_FORCE_RELOCATION, TC_FORCE_RELOCATION_SECTION): Likewise.
	(TC_FIX_ADJUSTABLE, MD_PCREL_FROM_SECTION): Likewise.
	(RELOC_ENUM): Define.
	(fix_new_internal): Use RELOC_ENUM.
	(fix_new, fix_new_exp): Likewise.
	(adjust_reloc_syms): Comment.  Remove unnecessary tests on sym != NULL.
	Replace gotos with continue.
	(write_relocs): Formatting.  Avoid symbol loops in
	RELOC_EXPANSION_POSSIBLE case too.  Report bfd_reloc_outofrange
	errors, and error number in other cases.
	(fixup_segment): Remove param names from prototype.  Rename
	"this_segment_type" to "this_segment".  Update linkrelax comment.
	Remove "size, "place" and "where" local vars.  Formatting.  Update
	"no symbol" comment.  Remove #if 0 and #if 1.
 2002-08-28 03:35:59 +00:00
Alan Modra
5a38dc70b4 * as.c: Replace CONST with const. 
* write.c: Likewise.
	* config/obj-coff.c: Likewise.
	* config/tc-a29k.c: Likewise.
	* config/tc-arm.c: Likewise.
	* config/tc-dlx.c: Likewise.
	* config/tc-h8300.c: Likewise.
	* config/tc-h8500.c: Likewise.
	* config/tc-i370.c: Likewise.
	* config/tc-i860.c: Likewise.
	* config/tc-i960.c: Likewise.
	* config/tc-m68hc11.c: Likewise.
	* config/tc-m68k.c: Likewise.
	* config/tc-m88k.c: Likewise.
	* config/tc-mcore.c: Likewise.
	* config/tc-mips.c: Likewise.
	* config/tc-ns32k.c: Likewise.
	* config/tc-pdp11.c: Likewise.
	* config/tc-pj.c: Likewise.
	* config/tc-s390.c: Likewise.
	* config/tc-sh.c: Likewise.
	* config/tc-sparc.c: Likewise.
	* config/tc-tahoe.c: Likewise.
	* config/tc-tic80.c: Likewise.
	* config/tc-v850.c: Likewise.
	* config/tc-vax.c: Likewise.
	* config/tc-w65.c: Likewise.
	* config/tc-z8k.c: Likewise.
 2002-06-08 07:37:16 +00:00
Jakub Jelinek
13ae64f3c7 * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_THREAD_LOCAL 
for symbols from SHF_TLS section.
	(_bfd_elf_print_private_bfd_data): Add PT_TLS.
	(elf_fake_sections): Set SHF_TLS for SEC_THREAD_LOCAL sections.
	(map_sections_to_segments): Build PT_TLS segment if necessary.
	(assign_file_positions_for_segments): Likewise.
	(get_program_header_size): Account for PT_TLS segment.
	(swap_out_syms): Set type of BSF_THREAD_LOCAL symbols and symbols from
	SEC_THREAD_LOCAL sections to STT_TLS.
	* reloc.c: Add 386 and IA-64 TLS relocs.
	* section.c (SEC_THREAD_LOCAL): Define.
	(SEC_CONSTRUCTOR_TEXT, SEC_CONSTRUCTOR_DATA, SEC_CONSTRUCTOR_BSS):
	Remove.
	* elflink.h (elf_link_add_object_symbols): Support .tcommon.
	(size_dynamic_sections): If DF_STATIC_TLS, set DF_FLAGS
	unconditionally.
	(struct elf_final_link_info): Add first_tls_sec.
	(elf_bfd_final_link): Set first_tls_sec.
	Compute elf_hash_table (info)->tls_segment.
	(elf_link_output_extsym): Handle STT_TLS symbols.
	(elf_link_input_bfd): Likewise.
	* syms.c (BSF_THREAD_LOCAL): Define.
	* bfd-in2.h: Rebuilt.
	* libbfd.h: Rebuilt.
	* elf32-i386.c (elf_i386_tls_transition, dtpoff_base, tpoff,
	elf_i386_mkobject, elf_i386_object_p): New functions.
	(elf_howto_table): Add TLS relocs.
	(elf_i386_reloc_type_lookup): Support TLS relocs.
	(elf_i386_info_to_howto_rel): Likewise.
	(struct elf_i386_link_hash_entry): Add tls_type.
	(struct elf_i386_obj_tdata): New.
	(elf_i386_hash_entry, elf_i386_tdata, elf_i386_local_got_tls_type):
	New macros.
	(struct elf_i386_link_hash_table): Add tls_ldm_got.
	(link_hash_newfunc): Clear tls_type.
	(elf_i386_check_relocs): Support TLS relocs.
	(elf_i386_gc_sweep_hook): Likewise.
	(allocate_dynrelocs): Likewise.
	(elf_i386_size_dynamic_sections): Likewise.
	(elf_i386_relocate_section): Likewise.
	(elf_i386_finish_dynamic_symbol): Likewise.
	(bfd_elf32_mkobject, elf_backend_object_p): Define.
	* elfxx-ia64.c (struct elfNN_ia64_dyn_sym_info): Add tprel_offset,
	dtpmod_offset, dtprel_offset, tprel_done, dtpmod_done, dtprel_done,
	want_tprel, want_dtpmod, want_dtprel.
	(elfNN_ia64_tprel_base, elfNN_ia64_dtprel_base): New functions.
	(ia64_howto_table): Add TLS relocs, rename R_IA64_LTOFF_TP22 to
	R_IA64_LTOFF_TPREL22.
	(elf_code_to_howto_index): Add TLS relocs.
	(elfNN_ia64_check_relocs): Support TLS relocs.
	(allocate_global_data_got): Account for TLS .got data.
	(allocate_dynrel_entries): Account for TLS dynamic relocations.
	(elfNN_ia64_install_value): Supprt TLS relocs.
	(set_got_entry): Support TLS relocs.
	(elfNN_ia64_relocate_section): Likewise.

	* config/obj-elf.c (elf_common): Renamed from obj_elf_common.
	(obj_elf_common): Call elf_common.
	(obj_elf_tls_common): New function.
	(elf_pseudo_tab): Support .tls_common.
	(special_sections): Add .tdata and .tbss.
	(obj_elf_change_section): Set SEC_THREAD_LOCAL for SHF_TLS
	sections.
	(obj_elf_parse_section_letters): Support T in section flags (SHF_TLS).
	(obj_elf_parse_section_letters): Include T in error message.
	* config/tc-ppc.c (ppc_section_letter): Likewise.
	* config/tc-alpha.c (alpha_elf_section_letter): Likewise.
	(tc_gen_reloc): Handle SEC_THREAD_LOCAL the same way as
	SEC_MERGE.
	* config/tc-sparc.c (md_apply_fix3): Likewise.
	* config/tc-i386.c (tc_i386_fix_adjustable): Add TLS relocs.
	Define them if not BFD_ASSEMBLER.
	(lex_got): Support @TLSGD, @TLSLDM, @GOTTPOFF, @TPOFF, @DTPOFF
	and @NTPOFF.
	(md_apply_fix3): Add TLS relocs.
	* config/tc-ia64.c (enum reloc_func): Add FUNC_DTP_MODULE,
	FUNC_DTP_RELATIVE, FUNC_TP_RELATIVE, FUNC_LT_DTP_MODULE,
	FUNC_LT_DTP_RELATIVE, FUNC_LT_TP_RELATIVE.
	(pseudo_func): Support @dtpmod(), @dtprel() and @tprel().
	(ia64_elf_section_letter): Include T in error message.
	(md_begin): Support TLS operators.
	(md_operand): Likewise.
	(ia64_gen_real_reloc_type): Support TLS relocs.
	* testsuite/gas/i386/tlspic.s: New file.
	* testsuite/gas/i386/tlsd.s: New file.
	* testsuite/gas/i386/tlsnopic.s: New file.
	* testsuite/gas/i386/tlsd.d: New file.
	* testsuite/gas/i386/tlsnopic.d: New file.
	* testsuite/gas/i386/tlspic.d: New file.
	* testsuite/gas/i386/i386.exp: Add tlsd, tlsnopic and tlspic tests.
	* testsuite/gas/ia64/tls.s: New file.
	* testsuite/gas/ia64/tls.d: New file.
	* testsuite/gas/ia64/ia64.exp: Add tls test.
	* write.c (adjust_reloc_syms): Don't change symbols in
	SEC_THREAD_LOCAL sections to STT_SECTION + addend.

	* elf/common.h (PT_TLS, SHF_TLS, STT_TLS, DF_STATIC_TLS): Define.
	* elf/ia64.h (R_IA64_LTOFF_TPREL22): Renamed from R_IA64_LTOFF_TP22.
	* elf/i386.h: Add TLS relocs.

	* scripttempl/elf.sc: Add .rel{,a}.t{bss,data}, .tdata and .tbss.
	* ldlang.c (lang_add_section): Set SEC_THREAD_LOCAL for
	output section if necessary.  Handle .tbss.
	(lang_size_sections): Clear _raw_size for .tbss section
	(it allocates space in PT_TLS segment only).
	* ldwrite.c (build_link_order): Build link order for .tbss too.

	* readelf.c (get_segment_type): Add PT_TLS.
	(get_elf_section_flags): Add SHF_TLS.
	(get_dynamic_flags): Optimize.  Add DF_STATIC_TLS.
	(process_dynamic_segment): Use puts instead of printf.
	(get_symbol_type): Support STT_TLS.
	* objdump.c (dump_section_header): Remove SEC_CONSTRUCTOR_TEXT,
	SEC_CONSTRUCTOR_DATA, SEC_CONSTRUCTOR_BSS.
	Add SEC_THREAD_LOCAL.
 2002-05-23 13:12:53 +00:00
Alan Modra
18e1d48773 * write.c (size_seg): Check adjustment to last frag. 
(SUB_SEGMENT_ALIGN): If HANDLE_ALIGN defined, pad out last frag to
	section alignment.
	* config/obj-coff.c (SUB_SEGMENT_ALIGN): Likewise.
	* config/obj-ieee.c (SUB_SEGMENT_ALIGN): Likewise.
	(write_object_file): Invoke md_do_align if available, and use
	frag_align_code on text sections.
	* config/obj-vms.h (SUB_SEGMENT_ALIGN): Now two args.
	* config/tc-m88k.h (SUB_SEGMENT_ALIGN): Likewise.
	* config/tc-ppc.h (SUB_SEGMENT_ALIGN): Likewise.
	* config/tc-sh.h (SUB_SEGMENT_ALIGN): Likewise.
	* config/tc-i386.h (SUB_SEGMENT_ALIGN): Likewise.  Define for
	BFD_ASSEMBLER too.
 2002-05-23 08:08:48 +00:00
Alan Modra
50b3122815 * write.c (subsegs_finish): Don't specially align last subseg. 2002-05-13 01:23:51 +00:00
Alan Modra
3f3cdb0302 * write.c (cvt_frag_to_fill): Set fr_offset to zero on .org 
backwards to prevent cascading errors.
 2002-05-01 00:33:09 +00:00
Alan Modra
937149dd3c * config/tc-i386.c (tc_gen_reloc): Don't attempt to handle 8 byte 
relocs except when BFD64.

	* write.c (number_to_chars_bigendian): Don't abort when N is
	larger than sizeof (VAL).
	(number_to_chars_littleendian): Likewise.
 2002-03-06 04:59:36 +00:00
Alan Modra
7c6beb6988 * write.c (write_object_file): Make use of bfd_section_list_remove. 
* config/obj-ecoff.c (ecoff_frob_file): Likewise.
	* config/tc-mmix.c (mmix_frob_file): Likewise.
 2002-01-05 13:13:18 +00:00
Jakub Jelinek
f7460f5f76 * elf64-alpha.c (ALPHA_ELF_GOT_ENTRY_RELOCS_XLATED): Defined. 
(elf64_alpha_relocate_section): Translate local_got_entries
	for STT_SECTION symbol to SHF_MERGE section the first time
	we see it.
	* elfxx-ia64.c (struct elfNN_ia64_local_hash_entry): Add
	sec_merge_done.
	(get_local_sym_hash): New, extracted from get_dyn_sym_info.
	(get_dyn_sym_info): Use it.
	(elfNN_ia64_relocate_section): Translate local dyn entries
	for STT_SECTION symbol to SHF_MERGE section the first time
	we see it.

        * write.c (adjust_reloc_syms): Mark SEC_MERGE symbols as used
        in reloc if it has non-zero addend.
        * config/tc-alpha.c (tc_gen_reloc): Reinstall SEC_MERGE check.
        * config/tc-sparc.c (md_apply_fix3): Likewise.
 2001-11-28 19:15:14 +00:00
Jakub Jelinek
f8df10f4f5 * elf.c (_bfd_elf_rela_local_sym): New. 
* elflink.h (elf_link_input_bfd): Don't consider empty
	merged sections as removed in relocation tests.
	* elf-bfd.h (_bfd_elf_rela_local_sym): Add prototype.
	* elf32-i386.c (elf_i386_relocate_section): Handle relocs
	against STT_SECTION symbol of SHF_MERGE section.
	* elf32-arm.h (elf32_arm_relocate_section): Likewise.
	* elf32-avr.c (elf32_avr_relocate_section): Call
	_bfd_elf_rela_local_sym.
	* elf32-cris.c (cris_elf_relocate_section): Likewise.
	* elf32-d10v.c (elf32_d10v_relocate_section): Likewise.
	* elf32-fr30.c (fr30_final_link_relocate): Likewise.
	* elf32-h8300.c (elf32_h8_relocate_section): Likewise.
	* elf32-hppa.c (elf32_hppa_relocate_section): Likewise.
	* elf32-i370.c (i370_elf_relocate_section): Likewise.
	* elf32-i860.c (elf32_i860_relocate_section): Likewise.
	* elf32-m32r.c (m32r_elf_relocate_section): Likewise.
	* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
	* elf32-mcore.c (mcore_elf_relocate_section): Likewise.
	* elf32-openrisc.c (openrisc_elf_relocate_section): Likewise.
	* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
	* elf32-s390.c (elf_s390_relocate_section): Likewise.
	* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
	* elf32-v850.c (v850_elf_relocate_section): Likewise.
	* elf64-alpha.c (elf64_alpha_relocate_section): Likewise.
	* elf64-mmix.c (mmix_elf_relocate_section): Likewise.
	* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
	* elf64-s390.c (elf_s390_relocate_section): Likewise.
	* elf64-sparc.c (sparc64_elf_relocate_section): Likewise.
	* elf64-x86-64.c (elf64_x86_64_relocate_section): Likewise.
	* elf-hppa.h (elf_hppa_relocate_section): Likewise.
	* elf-m10200.c (mn10200_elf_relocate_section): Likewise.
	* elf-m10300.c (mn10300_elf_relocate_section): Likewise.
	* elfxx-ia64.c (elfNN_ia64_relocate_section): Likewise.
	* elf32-sh.c (sh_elf_relocate_section): Likewise for
	!partial_inplace relocs. Handle relocs against STT_SECTION
	symbol of SHF_MERGE for partial_inplace relocs.

	* config/tc-alpha.c (tc_gen_reloc): Remove SEC_MERGE test.
	* write.c (adjust_reloc_syms): Don't handle relocs against
	SEC_MERGE section symbols specially.
	(fixup_segment): Likewise.
 2001-11-23 12:17:21 +00:00
Nick Clifton
94f592af1b Update all uses of md_apply_fix to use md_apply_fix3. Make it a void function. 2001-11-15 21:29:00 +00:00
Timothy Wall
6e91790347 Fix tic54x testsuite failures and Lmem disassembly bugs. 2001-11-13 14:22:53 +00:00
Hans-Peter Nilsson
7e9250a361 * write.c (fixup_segment): Handle fixups for SEC_MERGE sections as 
for undefined symbols.
 2001-10-18 17:38:53 +00:00
Alan Modra
0e1a166b28 * dwarf2dbg.c (dwarf2_directive_file): Avoid signed/unsigned warning. 
* write.c (set_symtab): Update bfd_alloc declaration.  Use a temp
	var to ensure bfd_alloc arg is the right type.
	(write_object_file): Cast args of bfd_seek.  Replace bfd_write with
	bfd_bwrite.

	* config/obj-coff.c: Replace calls to bfd_write with calls to
	bfd_bwrite.  Cast args of bfd_seek.

	* config/obj-elf.c (obj_elf_change_section): Avoid signed/unsigned
	warning.

	* config/tc-mn10300.c (set_arch_mach): Make param unsigned.

	* config/tc-tic54x.c (tic54x_mlib): Replace bfd_read call with
	call to bfd_bread.
 2001-09-18 10:08:15 +00:00
Alan Modra
e0890092b6 * expr.c (expr): Move code setting "retval" to the end of the loop, 
and rearrange for efficiency.  For "PIC code" subtraction, use
	"rightseg" rather than recalculating.  For "symbol OP symbol"
	subtract, set "retval" to absolute_section if symbols in same
	section.
	* symbols.c (resolve_symbol_value): Resolve "sym +/- expr" to an
	O_symbol.  Simplify a +/- b code.  Allow equality and non-equality
	comparisons on symbols from any section.  Allow other comparison
	operators as for subtraction.
	(symbol_equated_reloc_p): New predicate function.
	* symbols.h (symbol_equated_reloc_p): Declare.
	* write.c (adjust_reloc_syms): Use symbol_equated_reloc_p.
	(write_relocs): Likewise.
	(write_object_file): Likewise.
	(relax_segment <rs_machine_dependent>): Ensure segment for
	expression syms is set correctly.
	* config/tc-mips.c (md_estimate_size_before_relax): Likewise.
	* config/tc-i386.c (md_assemble <Output jumps>): Don't lose part
	of a complex expression when setting up frag_var.
 2001-09-09 14:01:17 +00:00
Alan Modra
0e389e770d * read.c: Standardize error/warning messages - don't capitalise, no 
final period or newline, don't say "ignored" or "zero assumed" for
	as_bad messages.  In some cases, change the wording to that used
	elsewhere for similar messages.
	* app.c, as.c, atof-generic.c, cgen.c, cond.c, depend.c, dwarf2dbg.c,
	  ecoff.c, expr.c, frags.c, input-file.c, input-scrub.c, listing.c,
	  output-file.c, stabs.c, subsegs.c, symbols.c, write.c: Likewise.
	* ecoff.c (ecoff_directive_end): Test for missing name by
	comparing input line pointers rather than reading string.
	(ecoff_directive_ent): Likewise.
	* read.c (s_set): Likewise.
	(s_align): Report a warning rather than an error for
	alignment too large.
	(s_comm): Check for missing symbol name.
	(s_lcomm_internal): Likewise.
	(s_lsym): Likewise.
	(s_globl): Use is_end_of_line instead of looking for '\n'.
	(s_lcomm_internal): Likewise.
	(ignore_rest_of_line): Report a warning rather than an error.
 2001-08-01 01:44:25 +00:00
Alan Modra
050be34e82 * write.c (relax_segment <rs_space>): Account for fr_fix. 2001-07-26 03:39:29 +00:00
Alan Modra
ac62c3468d * symbols.c (S_GET_VALUE): Don't treat O_constant and local 
symbols specially.  Always resolve, adding fr_address to value.
	* write.c (write_object_file): Don't add fr_address to sym values.
	(relax_frag): Likewise.
	(relax_segment): Likewise.
	* config/obj-ieee.c (do_symbols): Likewise.
	* config/tc-cris.c (md_convert_frag): Likewise.
	* config/tc-fr30.c (md_convert_frag): Likewise.
	* config/tc-i386.c (md_convert_frag): Likewise.
	* config/tc-m32r.c (md_convert_frag): Likewise.
	* config/tc-m68hc11.c (md_convert_frag): Likewise.
	* config/tc-mcore.c (md_convert_frag): Likewise.
	* config/tc-mips.c (mips16_extended_frag): Likewise.
	* config/tc-ns32k.c (md_convert_frag): Likewise.
	* config/tc-m68k.c (md_convert_frag_1): Likewise.
	(BRANCHBWL, BRABSJUNC, BRABSJCOND, BRANCHBW, FBRANCH, DBCCLBR,
	DBCCABSJ, PCREL1632, PCINDEX, ABSTOPCREL): Decrement.
	(md_relax_table): Remove first four entries.  Format.
	(md_estimate_size_before_relax): Remove old_fix.  Don't bother
	setting fr_var.  Simplify byte branch checks.
 2001-07-23 13:03:40 +00:00
Nick Clifton
8754881645 Fix mips16 testsuite failure by allowing finalize_syms to be set before 
size_segs is called.
 2001-07-03 15:04:19 +00:00
Nick Clifton
38b87a1b80 Do not set finalize_syms until after the segments have been sized. 
Some backends may still need to access the syms's frags in order to
adjust relaxed frags.
 2001-06-27 08:49:42 +00:00
Alan Modra
1a16aca4b4 * write.c (fixup_segment <Difference of 2 syms same seg>): Don't 
subtract MD_PCREL_FROM_SECTION for 68k.
	(fixup_segment <Difference of 2 syms different seg>): Only fudge
	by adding MD_PCREL_FROM_SECTION for 68k or if not already pcrel.
 2001-06-27 07:02:24 +00:00
Alan Modra
d48019e088 * write.c (fixup_segment <Difference of 2 syms same seg>): If 
pcrel, subtract MD_PCREL_FROM_SECTION value.
 2001-06-27 03:14:47 +00:00
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