Now that all the targets are utilizing CPU_PC_{FETCH,STORE}, and the
cpu state is multicore, and the STATE_CPU defines match, we can move
it all to the common code.
A lot of cpu state is stored in global variables, as is memory handling.
The sim_size support needs unwinding at some point. But at least this
is an improvement on the status quo.
The build line was missing the normal BUILD_xxx flags. Once we added
that, we get warnings that weren't shown before. As we fix those, we
notice that the -d option segfaults because it tries to write readonly
memory. Fix that too as part of the const/prototype clean up.
We want people to stop using the run.c frontend, but it's hard to notice
when it's still set as the default. Lets flip things so nrun.c is the
default, and users of run.c will get an error by default. We turn that
error into a warning for existing sims so we don't break them -- this is
mostly meant for people starting new ports.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* sim-sh.h: Add enum constants for sh[1-4], sh3e, sh3?-dsp,
renumbering the sh-dsp registers to use distinct numbers.
sim/sh:
* Makefile.in (interp.o): Depend on $(srcroot)/include/gdb/sim-sh.h.
* interp.c: Include "gdb/sim-sh.h".
(sim_store_register, sim_fetch_register): Use constants defined there.
gdb:
* sh-tdep.c (sh_dsp_register_sim_regno): New function.
(sh_gdbarch_init): Use it for sh-dsp.
* Makefile.in (interp.o): Depends on ppi.c .
(ppi.c): New rule.
* gencode.c (printonmatch, think, genopc): Deleted.
(MAX_NR_STUFF): Now 42.
(tab): Add SH-DSP CPU instructions.
Amalgamate ldc / stc / lds / sts instructions with similar
bit patterns. Fix opcodes of stc Rm_BANK,@-<REG_N>.
Fix semantics of lds.l @<REG_N>+,MACH (no sign extend).
(movsxy_tab): New array.
For movs, change MMMM field to GGGG, and mmmm field to MMMM.
Added entries for movx, movy and parallel processing insns.
(ppi_tab): New array.
(qfunc): Stabilize sort.
(expand_opcode): Handle [01][01]NN, [01][01]xx and [01][01]yy.
Handle 'M', 'G' 's' 'X', 'a', 'Y' and 'A'.
(dumptable): Now takes three arguments. Changed all callers.
Emit just one contigous jump table.
(filltable): Now takes an argument. Changed all callers.
Make index static.
(ppi_moves, expand_ppi_code, ppi_filltable, ppi_gensim): New functions.
(gensim_caselist): New function, broken out of gensim.
Handle opcode fields 'x', 'y', 's', 'M', 'G', 'X', 'a', and 'Y'.
Handle ref '9'.
(gensim): Handle 'N' in code field and '8' in refs field.
Call gensim_caselist - twice.
(ppi_index): New static variable.
(main): Unsupport default action.
Add dsp support for -x / -s option. Add -p option.
* interp.c (sh_jump_table, sh_dsp_table, ppi_table): Declare.
(saved_state_type): Rearrange to allow amalgamated ldc / stc /
lds / sts to work efficiently.
(target_dsp): New static variable.
(GBR, VBR, SSR, SPC, MACH, MACL): Reflect saved_state_type change.
(FPUL, Rn_BANK, SET_Rn_BANK, M, Q, S, T, SR_BL, SR_RB): Likewise.
(SR_MD, SR_RC, SET_SR_BIT, GET_SR, SET_RC, GET_FPSCR): Likewise.
(RS, RE, MOD, MOD_ME, DSP_R): Likewise.
(set_fpscr1): Likewise. Use target_dsp to check for dsp.
(MOD_MSi, SIG_BUS_FETCH): Deleted.
(CREG, SREG, PR, SR_MASK_DMY, SR_MASK_DMX, SR_DMY): New macros.
(SR_DMX, DSR, MOD_DELTA, GET_DSP_GRD): Likewise.
(SET_MOD): Reflect saved_state_type change. Set MOD_DELTA instead
of MOD_MS, and encode SR_DMY / SR_DMX into high word of MOD_ME.
(set_sr): Reflect saved_state_type change. Fix SR_RB handling.
Use SET_MOD.
(MA, L, TL, TB): Now controlled by ACE_FAST.
(SEXT32): Just cast to int.
(SIGN32): Fixed to only shift by 31.
(CHECK_INSN_PTR): SIGBUS at insn fetch now represented by insn_end 0.
(ppi_insn): Declare.
(ppi.c): Include.
(init_dsp): Set target_dsp. When it changes, switch end of
sh_jump_table with sh_dsp_table.
(sim_resume) Don't declare sh_jump_table0. Use sh_jump_table instead.
Don't Declare PR if it's #defined.
Fix single-stepping (Was broken in Mar 6 16:59:10 patch).
(sim_store_register, sim_read_register): Translate accesses to
reflect saved_state_type change.
* interp.c (set_sr): Set sr.
(SET_RC, MOD, MOD_MS, MOD_ME, SET_MOD, MOD_MS, MOD_ME): New macros.
(set_fpscr1): Don't bank-switch fpu registers when simulating sh-dsp.
(DSP_R): Fix definition.
(sim_resume): Remove outdated SET_SR use.
* interp.c (saved_state): New members for struct member asregs:
rs, re, insn_end, xram_start, yram_start.
(struct loop_bounds): New struct.
(SKIP_INSN): New macro.
(get_loop_bounds): New function.
(endianw): Renamed to global_endianw.
(maskw): negated bits.
(PC): Now insn_ptr.
(SR_MASK_RC, SR_RC_INCREMENT, SR_RC, RAISE_EXCEPTION): New macros.
(RS, RE, DSP_R, DSP_GRD, A1, A0, X0, X1, Y0, Y1, M0, A1G): Likewise.
(M1, A0G, RIAT, PT2H, PH2T, SET_NIP, CHECK_INSN_PTR): Likewise.
(SIG_BUS_FETCH): Likewise
(raise_exception, riat_fast): New functions.
(raise_buserror, sim_stop): Use raise_exception.
(PROCESS_SPECIAL_ADDRESS): Use xram_start / yram_start.
(BUSERROR, WRITE_BUSERROR, READ_BUSERROR):
Reverse sense of mask argument.
(FP_OP, set_dr): Use RAISE_EXCEPTION.
(wlat_fast, wwat_fast, wbat_fast, rlat_fast, rwat_fast, rbat_fast):
Declare. Remove redundant masking.
(wwat_fast, rwat_fast): Add argument endianw. Changed callers.
(MA): Updated for change pc -> PC.
(Delay_Slot): Use RIAT.
(empty): Deleted.
(trap): Remove argument little_endian. Add argument endianw.
Changed all callers. Use raise_exception.
(macw): Add argument endainw. Changed all callers.
(init_dsp): New function, extended after broken out of init_pointers.
(sim_resume): Replace pc with insn_ptr. Replace little_endian with
endianw. Replace nia with nip. Reverse sense of maskb / maskw /
maskl. Implement logic for zero-overhead loops. Don't try to
interpret garbage when getting a SIGBUS at insn fetch.
(sim_open): Call init_dsp.
* gencode.c (tab): Use SET_NIP instead of nia = . Use PH2T / PT2H /
RAISE_EXCEPTION where appropriate.
Add extra cycles for brai, braf , bsr, bsrf, jmp, jsr.
* interp.c (sim_store_register, sim_fetch_register):
Do proper endianness switch.
* interp.c (saved_state_type): New members for struct member asregs:
xymem_select, xmem, ymem, xmem_offset, ymem_offset.
(special_address): Delete.
(BUSERROR): Now a two-argument predicate.
(PROCESS_SPECIAL_ADDRESS, WRITE_BUSERROR, READ_BUSERROR): New macros.
(wlat_little, wwat_little, wbat_any, wlat_big, wwat_big): Delete.
(process_wlat_addr, process_wwat_addr): New functions.
(process_wbat_addr, process_rlat_addr, process_rwat_addr): Likewise.
(process_rbat_addr): Likewise.
(wlat_fast, wwat_fast, wbat_fast): Use WRITE_BUSERROR.
(rlat_little, rwat_little, rbat_any, rlat_big, rwat_big): Delete.
(rlat_fast, rwat_fast, rbat_fast): Use READ_BUSERROR.
(RWAT, RLAT, RBAT, WWAT, WLAT, WBAT): Delete SLOW versions.
(do_rdat, trap): Delete SLOW code.
(SEXT32, SIGN32): New macros.
(swap, swap16): Now integer in - integer out. Changed all callers.
(strswaplen, strnswap): Delete SLOW versions.
(init_pointers): Initialize dsp memory selection (preliminary).
(sim_store_register, sim_fetch_register): Use swap instead of
big / little endian read / write functions.
* interp.c (maskl): Deleted.
(endianw, endianb): New variables.
(special_address): Now inline.
(bp_holder): Put raising of buserror there, rename to:
(raise_buserror).
(BUSERROR): Now yields a value. Changed all users.
(wbat_big): Delete.
(wlat_fast, wwat_fast, wbat_fast): New functions.
(rlat_fast, rwat_fast, rbat_fast): Likewise.
(RWAT, RLAT, RBAT, WWAT, WLAT, WBAT): Use new functions.
(do_rdat, do_wdat): Likewise. Take maskl argument instead of
little_endian one. Changed caller macros.
(swap, swap16): Use w[rw]lat_big / w[rw]lat_little directly.
(strswaplen, strnswap): New functions.
(trap): Use them to fix up endian mismatches;
disable SYS_execve and SYS_execv; fix double address translation for
SYS_pipe and SYS_stat.
(sym_write, sym_read): Add endianness translation.
(sym_store_register, sym_fetch_register): Add maskl local variable.
(sim_open): Set endianw and endianb.
* interp.c (target_byte_order): Delete.
(sim_kind, myname, little_endian_p): New static locals.
(init_pointers): Use little_endian_p instead of target_byte_order.
(sim_resume): Likewise.
(sim_open): Set sim_kind, myname. Set little_endian_p from -E arg.
(sim_load): Return SIM_RC. New arg abfd. Call sim_load_file to
load file into simulator. Set start address from bfd.
(sim_create_inferior): Return SIM_RC. Delete arg start_address.
scheme which is more compatible with WinGDB builds.
* configure.in: Improve comment on how to run autoconf.
* configure: Re-run autoconf to get new ../common/aclocal.m4.
* Makefile.in: Use autoconf substitution to install common
makefile fragment.
* configure: Rebuild.
* Makefile.in (INSTALL): Revert to using install.sh.
(INSTALL_PROGRAM, INSTALL_DATA): Set to $(INSTALL).
(INSTALL_XFORM, INSTALL_XFORM1): Restore.
(CC_FOR_BUILD): Restore.
(gencode): Build using $(CC_FOR_BUILD).
(install): Don't install in $(tooldir).
