These changes are related to Ian's gas/libgloss changes of Dec 13/Dec 18.
* tc-mips.c (mips_ip): If configured for an embedded ELF system,
don't set the section alignment to 2**4.
* mips/ddb.ld: Align the location counter before setting _gp, and
before setting edata. Remove ALIGN from _gp computation.
* mips/idt.ld, mips/pmon.ld: Before setting _gp, use ALIGN(8) instead
of ALIGN(16). Remove ALIGN from _gp computation.
(prev_nop_frag_holds): New static variable.
(prev_nop_frag_required): New static variable.
(prev_nop_frag_since): New static variable.
(append_insn): If we aren't reordering, and prev_nop_frag is not
NULL, and we don't need any nops, then decrease the size of
prev_nop_frag. Don't insert nops because of instructions in
noreorder sections. Remember whether the previous instructions
where in noreorder sections even when not reordering.
(mips_no_prev_insn): Add preserver parameter. Change all
callers. Refer prev_nop_frag variables when appropriate.
(mips_emit_delays): Set up prev_nop_frag.
(s_mipsset): Clear prev_nop_frag if reordering.
extended instruction in a delay slot when not reordering. Set
prev_insn_valid even if not reordering.
(md_convert_frag): Warn if an extended instruction appears in a
delay slot.
symbol table.
(mips16_ip): First parse the expression, and then see whether it
came up with a register, rather than trying to first see whether
we are looking at a register.
(md_apply_fix): Handle BFD_RELOC_MIPS16_GPREL.
* config/tc-mips.c (append_insn): Output jump instruction as a
pair of 2 byte instructions, rather than as a single 4 byte
instruction.
start-sanitize-r5900
* config/tc-mips.c (md_begin): Correct test of mips_5900.
(mips_ip): Don't check INSN_ISA for a macro.
end-sanitize-r5900
(struct insn_label_list): Define.
(insn_labels, free_insn_labels): New static variables.
(mips_clear_insn_labels): New static function.
(append_insn): Mark all mips16 text labels, and make them odd.
Handle all labels after emitting a nop, not just one. Call
mips_clear_insn_labels rather than just clearing insn_label.
(mips_emit_delays): Add insns parameter, and use it to decide
whether to mark mips16 labels. Handle all labels, not just one.
Force mips16 labels to be odd. Change all callers.
(mips16_immed): Don't check for an odd branch target.
(md_apply_fix): Don't check mips16 mode for a branch reloc.
(mips16_extended_frag): Ignore the low bit in a branch target.
(md_convert_frag): Likewise.
(mips_no_prev_insn): Call mips_clear_insn_labels rather than just
clearing insn_label.
(mips_align, mips_flush_pending_output, s_cons): Likewise.
(s_float_cons, s_gpword): Likewise.
(s_align): Use insn_labels rather than insn_label.
(s_cons, s_float_cons, s_gpword): Likewise.
(mips_frob_file_after_relocs): New function.
(mips_define_label): Rewrite to add to insn_labels list.
* config/tc-mips.h (tc_frob_file_after_relocs): Define.
* ecoff.c (ecoff_build_symbols): If the size of a function comes
out odd, increment it.
(RELAX_MIPS16_ENCODE): Add dslot and jal_dslot arguments, and
store them. Adjust other RELAX_MIPS16 macros.
(RELAX_MIPS16_DSLOT): Define.
(RELAX_MIPS16_JAL_DSLOT): Define.
(append_insn): Pass new arguments to RELAX_MIPS16_ENCODE. Correct
handling of whether previous instruction has a fixup. Set
prev_insn_reloc_type.
(mips_no_prev_insn): Clear prev_insn_reloc_type.
(mips16_extended_frag): Use the right base address for a PC
relative add or load.
(md_convert_frag): Likewise. If a PC relative add or load is
used, record the alignment for the section.
system, don't set the section alignment to 2**4.
(s_change_sec): Likewise.
(append_insn): Call record_alignment for the section.
(md_section_align): Don't align the section size for an embedded
ELF system.
arguments, and store them. Adjust other RELAX_MIPS16 macros.
(RELAX_MIPS16_USER_SMALL): Define.
(RELAX_MIPS16_USER_EXT): Define.
(mips16_small, mips16_ext): New static variables.
(append_insn): Pass mips16_small and mips16_ext to
RELAX_MIPS16_ENCODE.
(mips16_ip): Set mips16_small and mips16_ext.
(mips16_immed): Don't check mips16_autoextend.
(mips16_extended_frag): Check USER_SMALL and USER_EXT.
mips_cpu is 5000, set interlocks and cop_interlocks.
(mips_ip): Give a better error message if the ISA level is wrong.
(md_parse_option): Recognize -mcpu=[v][r]5000.
* config/tc-mips.c (load_register): Remove unnecessary code that
was causing the high 32bits of 64bit constants to be lost.
Fixes PR10503. The compiler was producing the assembler code:
dli $3,0xfffffffffffff
when constructing the softfloat library. Unfortunately it was being
incorrectly assembled.
