changelog

这个是LINUX下的GDB调度工具的源码

2004-08-27  Richard Sandiford  <[e-mail]>

	* cpu.[ch], arch.[ch], decode.[ch]: Regenerated.
	* cpuall.h, model.c, sem.c: Regenerated.

2004-03-01  Richard Sandiford  <[e-mail]>

	* Makefile.in (SIM_OBJS): Add profile-fr450.o.
	(profile-fr450.o): New dependency.
	(stamp-cpu): Add fr450 to the list of machs.
	* sim-frv.h (SPR_IS_ACC): New macro.
	(H_SPR_ACC4, H_SPR_ACC63, H_SPR_ACCG4, H_SPR_ACCG63): Delete.
	* cache.c (frv_cache_init, non_cache_access): Handle bfd_mach_fr450.
	* frv.c (check_register_alignment, check_fr_register_alignment)
	(check_memory_alignment, do_media_average): Likewise.
	(frvbf_clear_accumulators): Likewise.  Use a mask of valid registers
	rather than a consecutive range.
	* interrupts.c (frv_queue_illegal_instruction_interrupt)
	(frv_queue_non_implemented_instruction_interrupt): Handle
	bfd_mach_fr450.
	* memory.c (check_data_read_address, check_readwrite_address)
	(check_insn_read_address, check_write_address): Likewise.
	* mloop.in (@cpu@_simulate_insn_prefetch): Likewise.
	* profile.c (reset_gr_flags, reset_fr_flags, reset_acc_flags)
	(frvbf_model_insn_before, frvbf_model_insn_after): Likewise.
	* profile-fr450.c: New file.
	* registers.c (fr450_spr): New array.
	(frv_register_control_init): Check its size.  Use it for fr450.
	(frv_check_register_access): Handle bfd_mach_fr450.
	(frv_check_spr_read_access): Likewise. Generalize accumulator check.
	* traps.c (frv_core_signal, frvbf_media_cr_not_aligned): Likewise.
	(frvbf_media_acc_not_aligned): Likewise.
	(frvbf_media_register_not_aligned): Likewise.
	* arch.c: Regenerate.
	* arch.h: Regenerate.
	* cpu.h: Regenerate.
	* cpuall.h: Regenerate.
	* decode.h: Regenerate.
	* model.c: Regenerate.

2004-03-01  Richard Sandiford  <[e-mail]>

	* cache.c (frv_cache_init): Change fr400 cache statistics to match
	the fr405.
	(non_cache_access): Add missing breaks.
	* interrupts.c (set_exception_status_registers): Always set EAR15
	for data_access_errors.
	* memory.c (fr400_check_write_address): Remove redundant alignment
	check.
	* model.c: Regenerate.

2004-03-01  Richard Sandiford  <[e-mail]>

	* frv.c (frvbf_iacc_cut): Rework, taking rounding into account.

2004-03-01  Richard Sandiford  <[e-mail]>

	* decode.c, decode.h, model.c, sem.c: Regenerate.

2003-11-24  Kevin Buettner  <[e-mail]>

	* frv-sim.h (GR_REGNUM_MAX, FR_REGNUM_MAX, PC_REGNUM, SPR_REGNUM_MIN)
	(SPR_REGNUM_MAX): Delete.
	* frv.c (gdb/sim-frv.h): Include.
	(frvbf_fetch_register, frvbf_store_register): Use register number
	constants from gdb/sim-frv.h.  Check availability of general
	purpose and float registers.

2003-11-03  Dave Brolley  <[e-mail]>

	* cache.c (address_interference): Check for higher priority requests
	in the same pipeline.

2003-10-31  Dave Brolley  <[e-mail]>

	* frv-sim.h (LR_REGNUM): Removed.
	(SPR_REGNUM_MIN,SPR_REGNUM_MAX): New macros.
	* frv.c (frvbf_fetch_register): Fetch SPR registers based on
	SPR_REGNUM_MIN and SPR_REGNUM_MAX. Check whether SPRs are implemented.
	Return 0 for an unimplemented register. Return the length of the data
	for an implemented register.
	(frvbf_store_register): Ditto.

2003-10-30  Andrew Cagney  <[e-mail]>

	* traps.c: Replace "struct symbol_cache_entry" with "struct
	bfd_symbol".

2003-10-10  Dave Brolley  <[e-mail]>

	* cpu.h, sem.c: Regenerate.

2003-10-06  Dave Brolley  <[e-mail]>

	* profile-fr550.[ch]: New files.
	* configure.in: Move frv handling to alphabetically correct placement.
	* Makefile.in: Add fr550 support.
	* frv-sim.h,frv.c,interrups.c,memory.c,mloop.in,pipeline.c,
	profile.[ch],registers.c,traps.c: Add fr550 support.
	* arch.c,arch.h,cpu.c,cpu.h,cpuall.h,model.h,decode.c,decode.h,sem.c:
	Regenerate.

2003-09-25  Dave Brolley  <[e-mail]>

	* reset.c (frv_initialize): Call frv_register_control_init first.

2003-09-24  Dave Brolley  <[e-mail]>

	* profile.h (update_FR_ptime): New prototype.
	(update_FRdouble_ptime): Ditto.
	(update_SPR_ptime): Ditto.
	(increase_ACC_busy): Ditto.
	(enforce_full_acc_latency): Ditto.
	(post_wait_for_SPR): Ditto.
	* profile.c (update_FR_ptime): Moved here from profile-fr500.c.
	(update_FRdouble_ptime): Ditto.
	(update_SPR_ptime): New function.
	(increase_ACC_busy): Ditto.
	(enforce_full_acc_latency): Ditto.
	(vliw_wait_for_fdiv_resource): Correct resource name.
	(vliw_wait_for_fsqrt_resource): Ditto.
	(post_wait_for_SPR): New function.
	* profile-fr500.c (frvbf_model_fr500_u_commit): New function.
	(frvbf_model_fr500_u_gr2fr): Pass out_FRk as output register to
	adjust_float_register_busy.
	(frvbf_model_fr500_u_gr_load): Record latency of SPR registers.
	(frvbf_model_fr500_u_fr_load): Wait for and record latency of SPR
	registers.
	(frvbf_model_fr500_u_float_arith): Ditto.
	(frvbf_model_fr500_u_float_dual_arith): Ditto.
	(frvbf_model_fr500_u_float_div): Ditto.
	(frvbf_model_fr500_u_float_sqrt): Ditto.
	(frvbf_model_fr500_u_float_convert): Ditto.
	(update_FR_ptime): Moved to profile.c
	(update_FRdouble_ptime): Moved to profile.c
	* profile-fr400.c (update_FR_ptime): Removed. Identical to functions
	for other machines.
	(update_FRdouble_ptime): Ditto.
	* arch.h,cpu.h,sem.c,decode.[ch],model.c,sem.c: Regenerated.

2003-09-12  Dave Brolley  <[e-mail]>

	* registers.c (frv_check_spr_read_access): Check for access to
	ACC4-ACC63 and ACCG4-ACCG63.
	* profile.h (frv-desc.h): #include it.
	(spr_busy): New member of FRV_PROFILE_STATE.
	(spr_latency): Ditto.
	(GNER_FOR_GR): New macro.
	(FNER_FOR_FR): New maccro.
	(update_SPR_latency): New function.
	(vliw_wait_for_SPR): New function.
	* profile.c (update_latencies): Update SPR latencies.
	(update_target_latencies): Ditto.
	(update_SPR_latency): New function.
	(vliw_wait_for_SPR): New function.
	* profile-fr500.c (frvbf_model_fr500_u_idiv): Record GNER latency.
	(frvbf_model_fr500_u_trap): Removed unused variable, ps.
	(frvbf_model_fr500_u_check): Ditto.
	(frvbf_model_fr500_u_clrgr): New unit modeller for fr500.
	(frvbf_model_fr500_u_clrfr): Ditto.
	(frvbf_model_fr500_u_spr2gr): Wait for SPR.
	(frvbf_model_fr500_u_gr2spr): Ditto.
	* frv-sim.h (H_SPR_ACC4): New macro.
	(H_SPR_ACCG4): New macro;
	(H_SPR_ACC0): Removed.
	(H_SPR_ACCG0): Removed.
	* arch.h,model.c,sem[ch],decode.[ch]: Regenerated.

2003-09-10  Dave Brolley  <[e-mail]>

	* profile.c (slot_names): FM1 was listed twice. Changed first
	instance to FM0. Added IALL, FMALL and FMLOW.
	(print_parallel): Don't examine slots with no insns.

2003-09-09  Dave Brolley  <[e-mail]>

	* frv.c (do_media_average): Select machine using a switch.

2003-09-08  Dave Brolley  <[e-mail]>

	On behalf of Doug Evans <[e-mail]>
	* Makefile.in (stamp-arch,stamp-cpu): Pass archfile to cgen.
	Remove copying of .cpu file to cgen/cpu, no longer needed.

2003-09-03  Dave Brolley  <[e-mail]>

	* cpu.h, model.c, sem.c, decode.h, decode.c: Regenerated.

2003-08-29  Dave Brolley  <[e-mail]>

	* Makefile.in (stamp-arch): Copy frv.cpu from $(srcdir)../../cpu
	temporarily when regenerating files.
	(stamp-cpu): Ditto.

2003-08-20  Micheal Snyder  <[e-mail]>

	* All generated files: Regenerate.

2001-10-11  Dave Brolley  <[e-mail]>

	* cpu.h,decode.c,decode.h,sem.c: Regenerate.

2001-10-09  Dave Brolley  <[e-mail]>

	* traps.c (frv_rett): Halt if PSR.S and PSR.ET are both set or both
	not set.
	* reset.c (frv_hardware_reset): Invalidate both caches.
	* registers.c: Update init, reset and read-only masks for all registers
	on all machines.
	* profile.h (cur_gr_complex): New field of FRV_PROFILE_STATE
	(prev_gr_complex): New field of FRV_PROFILE_STATE
	(set_use_is_gr_complex): New function.
	(set_use_not_gr_complex): New function.
	(use_is_gr_complex): New function.
	(decrease_GR_busy): New function.
	* profile.c (reset_gr_flags): New function.
	(reset_cc_flags): New function.
	(set_use_is_gr_complex): New function.
	(set_use_not_gr_complex): New function.
	(use_is_gr_complex): New function.
	(update_latencies): Reset gr and cc flags when latency reaches 0.
	(decrease_GR_busy): New function.
	* profile-fr400.h (fr500_reset_acc_flags): Removed.
	(fr500_reset_cc_flags): New function.
	* profile-fr500.c (frvbf_model_fr400_u_*): Reflect latencies from fr500
	LSI version 1.41.
	* profile-fr400.h (fr400_reset_gr_flags): New function.
	(fr400_reset_fr_flags): New function.
	(fr400_reset_acc_flags): New function.
	* profile-fr400.c (set_use_not_media_p4): New function.
	(set_use_not_media_p6): New function.
	(set_acc_use_not_media_p2): New function.
	(set_acc_use_not_media_p4): New function.
	(fr400_reset_gr_flags): New function.
	(fr400_reset_fr_flags): New function.
	(fr400_reset_acc_flags): New function.
	(frvbf_model_fr400_u_*): Reflect latencies from fr400 LSI version 1.1.
	(frvbf_model_fr400_u_media_hilo): New function.
	* pipeline.c (frv_vliw_setup_insn): Don't clear MSR0.MTT.
	* memory.c (fr400_check_data_read_address): Check address range only
	for double word loads. Don't check alignment here.
	(fr400_check_readwrite_address): New function.
	(fr500_check_readwrite_address): New function.
	(check_readwrite_address): New function.
	(fr500_check_insn_read_address): Correct address ranges.
	(frvbf_read_mem_*): Check address range here.
	(frv_address_forbidden): Removed.
	(fr400_check_write_address): New function.
	(check_write_address): New function.
	(frvbf_write_mem_*): Don't check address range here.
	(frvbf_mem_set_*): Check address range here.
	* interrupts.c (frv_queue_data_access_error_interrupt): Now takes an
	address as second argument.
	(frv_queue_data_access_exception_interrupt): New function.
	(frv_queue_illegal_instruction_interrupt): Generate fp_exception for
	media insns on fr400.
	(frv_queue_non_implemented_instruction_interrupt): Generate mp_exception
	for media insns on fr400.
	(frv_detect_insn_access_interrupts): Don't check for illegal addresses
	of insns here.  Check for MTRAP insn if PSR.EM is not set.
	(frv_set_mp_exception_registers): Only set MSR0.MTT if it is not already
	set.
	(set_exception_status_registers): Do not always set EPCR. Set EAR for
	data_acess_error only if not fr400.
	* frv.c (do_media_average): New function.
	(frvbf_media_average): New function.
	(frvbf_insn_cache_invalidate): Check for illegal invocation.
	(frvbf_data_cache_invalidate): Ditto.
	(frvbf_data_cache_flush): Ditto.
	* frv-sim.h (GET_FSR_QNE): New macro.
	(frv_msr_mtt): Remove MTT_SEQUENCE_ERROR.
	(GET_MSR_SRDAV): New macro.
	(GET_MSR_RDAV): New macro.
	(GET_MSR_RD): New macro.
	(frv_queue_data_access_error_interrupt): Now takes an address as second
	argument.
	(frv_address_forbidden): Removed.
	* cache.c (non_cache_access): Correct address ranges. Now takes cache
	as first argument.
	* arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-08-20  Dave Brolley  <[e-mail]>

	* sim-main.h (_sim_cpu): New field 'elf_flags'.
	* sim-if.c (sim_open): Extract the elf_flags from the input file and
	save them with each cpu.
	* mloop.in (main loop): Pass elf flags to frv_vliw_reset.  Set
	last_insn_p before executing the insn.
	* cache.c (frv_cache_invalidate): Flush scache if this is the cpu's
	insn cache.
	(frv_cache_invalidate_all): Ditto.

2001-08-20  Richard Sandiford  <[e-mail]>

	* traps.c (syscall_read_mem): Flush the data cache before reading.
	(syscall_write_mem): Flush the data cache before writing.
	Invalidate both caches.

2001-07-05  Ben Elliston  <[e-mail]>

	* Makefile.in (stamp-arch): Use $(CGEN_CPU_DIR).
	(stamp-cpu): Likewise.

2001-05-23  Dave Brolley  <[e-mail]>

	* profile-fr400.c (acc_use_is_media_p2): New function.
	(frvbf_model_fr400_u_media_2): Account for latency of output
	accumulators.
	(frvbf_model_fr400_u_media_2_quad): Ditto.
	(frvbf_model_fr400_u_media_2_acc): New function.
	(frvbf_model_fr400_u_media_2_acc_dual): New function.
	(frvbf_model_fr400_u_media_2_add_sub): New function.
	(frvbf_model_fr400_u_media_2_add_sub_dual): New function.
	(frvbf_model_fr400_u_media_3_dual): New function.
	(frvbf_model_fr400_u_media_4_acc_dual): New function.
	* arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-05-15  Dave Brolley  <[e-mail]>