The sim-basics.h is too big and includes too many things. This leads
to some arch's sim-main.h having circular loop issues with defs, and
makes it hard to separate out common objects from arch-specific defs.
By splitting up sim-basics.h and killing off sim-main.h, it'll make
it easier to separate out the two.
The defs.h header will take care of including the various config.h
headers. For now, it's just config.h, but we'll add more when we
integrate gnulib in.
This header should be used instead of config.h, and should be the
first include in every .c file. We won't rely on the old behavior
where we expected files to include the port's sim-main.h which then
includes the common sim-basics.h which then includes config.h. We
have a ton of code that includes things before sim-main.h, and it
sometimes needs to be that way. Creating a dedicated header avoids
the ordering mess and implicit inclusion that shows up otherwise.
Since we require C11 now, we can assume many headers exist, and
clean up all of the conditional includes. It's not like any of
this code actually accounted for the headers not existing, just
whether we could include them.
The strings.h cleanup is a little nuanced: it isn't in C11, but
every use of it in the codebase will include strings.h only if
string.h doesn't exist. Since we now assume the C11 string.h
exists, we'll never include strings.h, so we can delete it.
Now that we have access to the sim state everywhere, we can convert to
the common engine logic for overall processing. This frees us up from
tracking exception state ourselves.
By itself, this commit doesn't really change anything. It lays the
groundwork for using the cpu state in follow up commits, both for
engine state and for cpu state. Splitting things up this way so it
is easier to see how things have changed.
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.
This removes the last uses of PARAMS from sim.
2014-01-06 Tom Tromey <tromey@redhat.com>
* README-HACKING: Don't use PARAMS.
* arm/wrapper.c: Don't use PARAMS.
* bfin/sim-main.h: Don't use PARAMS.
* common/callback.c: Don't use PARAMS.
* common/cgen-trace.c: Don't use PARAMS.
* common/run-sim.h: Don't use PARAMS.
* common/run.c: Don't use PARAMS.
* common/sim-base.h: Don't use PARAMS.
* common/sim-load.c: Don't use PARAMS.
* common/sim-options.h: Don't use PARAMS.
* common/sim-trace.c: Don't use PARAMS.
* common/sim-trace.h: Don't use PARAMS.
* common/sim-utils.h: Don't use PARAMS.
* cr16/cr16_sim.h: Don't use PARAMS.
* cr16/gencode.c: Don't use PARAMS.
* cr16/interp.c: Don't use PARAMS.
* cr16/simops.c: Don't use PARAMS.
* d10v/d10v_sim.h: Don't use PARAMS.
* d10v/gencode.c: Don't use PARAMS.
* d10v/interp.c: Don't use PARAMS.
* d10v/simops.c: Don't use PARAMS.
* erc32/erc32.c: Don't use PARAMS.
* erc32/exec.c: Don't use PARAMS.
* erc32/float.c: Don't use PARAMS.
* erc32/func.c: Don't use PARAMS.
* erc32/sis.c: Don't use PARAMS.
* erc32/sis.h: Don't use PARAMS.
* mips/interp.c: Don't use PARAMS.
* mips/sim-main.h: Don't use PARAMS.
* sh/interp.c: Don't use PARAMS.
* v850/sim-main.h: Don't use PARAMS.
* v850/v850_sim.h: Don't use PARAMS.
* interp.c (sim_create_inferior): Add comment.
From Alan Matsuoka <alanm@redhat.com>:
From 2001-04-27 Jason Eckhardt <jle@cygnus.com>:
* simops.c (OP_4400): Output "mvf0f" instead of "mf0f".
(OP_4401): Output "mvf0t" instead of "mf0t".
(OP_460B): Do not output a flag register.
(OP_4609): Do not output a flag register.
* simops.c (OP_4201): For "rac", sign extend 56 bit value before
it is shifted.
* d10v_sim.h (MAX32, MIN32, MASK32, MASK40): Re-define using
SIGNED64 macro.
* 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.
