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Ian Lance Taylor 1993-11-18 19:10:20 +00:00
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Wed Nov 17 17:23:53 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* configure.in (mips-*-irix5*): New target. Use elf and mips-big.
* config/obj-elf.c: If ECOFF_DEBUGGING, include ecoff.h.
(obj_pseudo_table): If ECOFF_DEBUGGING, define ECOFF
pseudo-ops.
(obj_read_begin_hook): If ECOFF_DEBUGGING, call
ecoff_read_begin_hook.
(obj_symbol_new_hook): If ECOFF_DEBUGGING, call
ecoff_symbol_new_hook.
(obj_elf_init_stab_section): Cast alloca result.
(elf_frob_file): If ECOFF_DEBUGGING, finish up ECOFF debugging
information and write it out into .mdebug section.
* config/obj-elf.h (ELF_TARGET_SYMBOL_FIELDS): New macro.
(TARGET_SYMBOL_FIELDS): Use ELF_TARGET_SYMBOL_FIELDS.
(ECOFF_DEBUGGING): Define if TC_MIPS.
(TARGET_SYMBOL_FIELDS): If ECOFF_DEBUGGING, override to add
fields required by ECOFF.
* config/tc-mips.c: Check ECOFF_DEBUGGING rather than
OBJ_ECOFF in many cases.
(mips_any_noreorder): New variable.
(mips_cprestore_offset): Initialize to -1.
(mips_frame_reg): New variable.
(RELAX_ENCODE, RELAX_OLD, RELAX_NEW, RELAX_RELOC1,
RELAX_RELOC2, RELAX_RELOC3, RELAX_WARN): New macros.
(md_pseudo_table): Handle "gpword" and "cpadd".
(md_begin): Initialize ok to false. If OBJ_ELF, set alignment
of text, data and bss sections to 4. Set alignment of
.reginfo section to 2. If ECOFF_DEBUGGING, create .mdebug
section.
(ALIGN_ERR, ALIGN_ERR2): Removed unused and useless alignment
check.
(append_insn, macro_build, macro_build_lui): Take place
argument. Changed all callers.
(append_insn): If appending a nop, don't emit one.
(macro_build): Changed assertion for 'i', 'j', 'o' case.
(gp_reference): Removed.
(load_address): New function.
(macro): If mips_noreorder is used, set mips_any_noreorder.
Extensive changes to handle GP and PIC symbols differently.
Build both possible code choices using a variant frag, and
make a final decision at the end of assembly when all
information is known. Added PIC support for all symbol
references.
(mips_ip): Don't permit anything but a number after $ for a
coprocessor register. Don't use .lit4 or .lit8 sections when
generating PIC code. If OBJ_ELF, set alignment of .lit4 or
.lit8 section to 4.
(md_apply_fix): Accept and ignore GOT16 and GPREL32 relocs.
(s_change_sec): Set alignment of ELF .rodata or .sdata section
to 4.
(s_mipsset): If .set noreorder, set mips_any_noreorder.
(s_cpload): Ignore .cpload if not generating PIC code. Warn
if .cpload is not in noreorder section.
(s_cprestore): Ignore .cprestore if not generating PIC code.
(s_gpword, s_cpadd): New functions.
(tc_get_register): Added frame argument; if true, set
mips_frame_reg to return value. Changed all callers.
(md_estimate_size_before_relax): Don't error out, but instead
determine how much a frag should grow.
(tc_gen_reloc): Return multiple relocs if appropriate, as
determined by md_estimate_size_before_relax.
(md_convert_frag): New function.
(mips_elf_final_processing): Set ELF header flags based on
mips_any_noreorder and mips_pic.
* config/tc-mips.h (RELOC_EXPANSION_POSSIBLE): Define.
(MAX_RELOC_EXPANSION): Define to be 3.
(md_relax_frag): Define to be 0.
(md_convert_frag): Don't define.
(tc_get_register): Changed declaration.
* ecoff.h, ecoff.c: New files pulled out of config/obj-ecoff.c to
support generating ECOFF debugging information for MIPS ELF
targets. Compiled only if ECOFF_DEBUGGING is defined. Changed
handling of external symbols: it now always generates exactly
those external symbols that are defined in the global symbol list.
* Makefile.in (REAL_SOURCES): Added ecoff.c.
(REAL_HEADERS): Added ecoff.h.
(OBJS): Added ecoff.o.
(ecoff.o): New target.
* config/obj-ecoff.c: Almost entirely moved into ecoff.c.
Remaining code mostly just calls ecoff.c code.
* config/obj-ecoff.h: Define ECOFF_DEBUGGING.
(TARGET_SYMBOL_FIELDS): Make ecoff_symbol a pointer to a
struct localsym.
(obj_read_begin_hook, obj_symbol_new_hook): Define to call
functions in ecoff.c.
(ecoff_stab): Don't declare (now declared in ecoff.h).
(obj_set_sym_index): Define.
(obj_ecoff_set_sym_index): Declare.
* frags.h (frag_grow): Declare.
* frags.c (frag_grow): Made non-static.
* 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.
* read.c (read_a_source_file): If we find a bad pseudo-op,
do a continue to go on to the next line rather than a break.
Removed duplicate bad pseudo-op code which was never executed.
* read.c (s_lcomm): Do not require a comma after the name.
* subsegs.h (segment_info_type): Changed hadone field to bitfield.
Added bss bitfield.
* as.c (perform_an_assembly_pass): Set bss flag for bss_section.
* read.c (s_lcomm): Set bss flag for .sbss section if used.
* 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, base
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.
* app.c (do_scrub_next_char): Don't interpret a comment character
as starting a CPP line directive unless it is a '#' and is the
very first characters on the line (i.e., do not permit leading
whitespace).
* messages.c (identify): Make file argument non-const, to match
callers.
Tue Nov 16 20:38:21 1993 Jeffrey A. Law (law@snake.cs.utah.edu)
* config/tc-hppa.c (pa_ip): Fix thinko in 21bit range check.