Add file sim-hload.c - generic load for hardware only simulators.
Review each simulators sim_open, sim_load, sim_create_inferior so that
they more closely match required behavour.
that image properties such as endianness can be checked.
More strongly document the expected behavour of each of the sim_*
interfaces.
Add default endian argument to simulator config macro
SIM_AC_OPTION_ENDIAN. Use in sim_config.
o Provide poll_quit callback to simulators
so that they can poll for SIGINT on
clueless OS's.
o Add sim_stop to simulators so that clients
can request a halt (eg gdbtk's STOP button)
Works for PPC!
o Re-arange remote-sim.c so that the
hard work is moved from gdbsim_resume()
to gdbsim_wait() (where it should be).
* d10v_sim.h (exec_bfd): Rename to prog_bfd.
* interp.c: #include bfd.h.
(myname, sim_kind, start_address): New static locals.
(prog_bfd_was_opened_p, prog_bfd): New static locals.
(decode_pc): Update to use prog_bfd.
(sim_open): Set sim_kind, myname. Ignore -E arg.
(sim_close): Close prog_bfd if simulator opened it.
(sim_create_inferior): Return SIM_RC. Delete arg start_address.
(sim_load): Return SIM_RC. New arg abfd. Set start address from bfd.
Call sim_load_file to load file into simulator.
* simops.c (trace_input_func): exec_bfd renamed to prog_bfd.
* Make-common.in (CSEARCH): Do not include the gdb directory in
the search path.
* Make-common.in (SIM_ENDIAN, SIM_HOSTENDIAN, SIM_INLINE,
SIM_WARNING): Drop, requiring the simulator specific Makefile.in
to explicitly incorporate these.
* aclocal.m4 (--enable-sim-alignment); New option. Strongly
specify the alignment restrictions of the target architecture -
without this option all alignment restrictions are accomodated.
(--enable-sim-assert): New option. Conditionally compile in
assertion statements.
(--enable-sim-float): New option. Strongly specify the target's
floating point support.
(--enable-sim-hardware): New option. Specify the hardware devices
included in the simulation.
(--enable-sim-packages): New option. Specify the hardware
packages included in the simulation.
(--enable-sim-regparm): New option. Specify that parameters be
passed in registers instead of on the stack.
(--enable-sim-reserved-bits): New option. Specify that reserved
bits within an instruction are are correctly set.
(--enable-sim-smp): New option. Specify the level of SMP support
to be included in the simulator.
(--enable-sim-stdcall): New option. Specify an alternative
function call convention.
(--enable-sim-xor-endian): New option. Configure xor-endian
support used by some targets to implement bi-endian support.
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.
* d10v-sim.h (simops): Add flag is_long.
(State): Add pc_changed. Instructions which update the PC should
use the JMP macro which sets this.
(JMP): New macro. Sets the PC and the pc_changed flag.
* gencode.c (write_opcodes): Add is_long field.
* interp.c (lookup_hash): If we blindly apply a short opcode's mask
to a long opcode we could get a false match. Check the opcode size.
(hash): Add a size field to the hash table.
(sim_open): Initialize size field in hash table.
(sim_resume): Change to logic for setting the PC. Used to increment the
PC if it had not been changed. This didn't allow single-instruction loops.
Now checks the flag State.pc_changed. Also now stops when ^C is received.
(dmem_addr): Fix translation of data segments to unified memory.
(sim_ctrl_c): New function. When ^C is received, set stop_simulator flag.
* simops.c: Changed all branch and jump instructions to use new JMP macro.
(OP_20000000): Corrected trace information to show this is a ldi.l, not
a ldi.s instruction.
* interp.c (sim_size): Now allocates unified memory for imap segments
0,1,2, and 127. Initializes imap0 and imap1 to 0x1000. Initializes dmap to 0.
(sim_write): Just call xfer_mem().
(sim_read): Just call xfer_mem().
(xfer_mem): New function. Does appropriate memory mapping and copies bytes.
(dmem_addr): New function. Reads dmap register and translates data
addresses to local addresses.
(pc_addr): New function. Reads imap register and computes local address
corresponding to contents of the PC.
(sim_resume): Change to use pc_addr().
(sim_create_inferior): Change reinitialization code. Also reinitializes
imap[01] and dmap.
(sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
(sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
* simops.c (MEMPTR): Redefine to use dmem_addr().
(OP_5F00): Replace references to STate.imem with dmem_addr().
* d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128].
(RB,SW,RW,SLW,RLW): Redefine to use dmem_addr().
(IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define.
Andrew Cagney