PR sim/8388
* armemu.c (WriteR15Load): New function. Determines if the state
can be changed upon a write to R15.
(LoadMult): Use WriteR15Load.
* armemu.h (WRITEDESTB): Use WriteR15Load.
This fix is simple:
msp430-sim.c: In function 'maybe_perform_syscall':
msp430-sim.c:898:10: warning: format '%d' expects argument of type 'int',
but argument 5 has type 'long int' [-Wformat]
This one we change to use casts like everyone else does in the code base:
msp430-sim.c: In function 'msp430_step_once':
msp430-sim.c:985:7: warning: passing argument 3 of 'init_disassemble_info'
from incompatible pointer type [enabled by default]
include/dis-asm.h:368:13: note: expected 'fprintf_ftype' but argument is
of type 'int (*)(struct FILE * __restrict__, const char * __restrict__)'
It is rare for people to want to modify the cmd arg. In general, they
really shouldn't be, but a few still do. For those who misbehave, dupe
the string locally so they can bang on it.
sim/rx/gdb-if.c had a function named `rx_signal_to_host'. This
function mapped signal numbers used by the BSP to host signal
numbers which, at one time a while back, were used by GDB
as target signal numbers. This change updates the signal
numbers returned to be those names prefixed with "GDB_SIGNAL_"
as defined in include/gdb/signals.h.
It also changes the name of the function somewhat to better
match what the function currently does. I noticed that this
function is not static - and there's no reason for it not
to be - so I made it static too.
* gdb-if.c (rx_signal_to_host): Rename to
`rx_signal_to_gdb_signal'. Make static. Update all callers
to use new name. Use signal names from include/gdb/signals.h.
Many of the simulators change the SIGINT handler.
E.g., moxie/interp.c:
sigsave = signal (SIGINT, interrupt);
However, this is unnecessary.
remote-sim.h already provides an API for asynchronously stopping
a sim; and both gdb and the drivers (run.c and nrun.c at least,
I didn't check the others) install a SIGINT handler which
calls this method.
URL: https://sourceware.org/bugzilla/show_bug.cgi?id=16450
Reported-by: Tom Tromey <tromey@redhat.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When cross-compiling GDB for PPC, there's a prerequisite "-lz" for psim
that results in a build failure. With such prerequisite, GNU Make will
try to search the library from build machine's /usr/lib which is wrong.
On 64-bit Linux build machines the compilation will fail because of this.
URL: https://sourceware.org/bugzilla/show_bug.cgi?id=12202
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.
I meant for this script to be +x, but missed when doing the initial CVS
commit. It wasn't possible to fix w/CVS, but it is w/git, so do it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-12-03 Mike Frysinger <vapier@gentoo.org>
* run-tests.sh: Add +x file mode.
These files are source files and have no business being +x. We couldn't
easily fix it in CVS (you need login+write access to the raw rcs files),
but we can fix this w/git.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This reverts part of the earlier version.in change. It moves
version.in back to the gdb directory. This works around the CVS bug
we've found.
gdb
* Makefile.in (version.c): Use version.in, not
common/version.in.
* common/create-version.sh: Likewise.
* common/version.in: Move...
* version.in: ...here.
gdb/doc
* Makefile.in (version.subst): Use version.in, not
common/version.in.
* gdbint.texinfo (Versions and Branches, Releasing GDB):
Likewise.
gdb/gdbserver
* Makefile.in (version.c): Use version.in, not
common/version.in.
sim/common
* Make-common.in (version.c): Use version.in, not
common/version.in.
* create-version.sh: Likewise.
sim/ppc:
* Make-common.in (version.c): Use version.in, not
common/version.in.
This change is required now that gdb/version.in has been moved to
gdb/common/version.in and now that the date needs to be fetched
from bfd/version.h.
sim/common/ChangeLog:
* create-version.sh: New script. Adapted from
gdb/commong/create-version.sh.
* Make-common.in (version.c): Update rule dependencies,
and re-implement using create-version.sh.
sim/ppc/ChangeLog:
* Makefile.in (srccom): New variable.
(version.c): Update rule dependencies, and re-implement using
sim/common/create-version.sh.
The SEARCH insn is an oddball when it comes to parallel usage. It places a
big limit on what other insns it can run in parallel with, but we don't
currently track the amount of state needed to verify this (since no other insn
really requires this). Add a note for now in case we get around to it.
For many of the 32bit dsp shift related insns, we were just ignoring the HLs
field. The hardware does not though and will reject the insn if it's set
incorrectly. Update the sim to match.
Since the sim has a few fake debug insns that the hardware does not, we
need to check for those before attempting to run them. Otherwise we'll
randomly trigger the sim debug asserts/aborts/halts insns. On the
hardware, these are proper invalid insns, and the table catches that.
The main body of the "all insn" test is executed once per tested insn, and
we test millions of insns here. Any shrinkage we can do in this loop will
speed things up nicely (since it's multiplied per tested insn).
To that end, simplify the end-of-table test into one less insn, and omit
the SSYNC when we build for the sim. When we build to run on the hardware,
this insn matters, but the sim doesn't have write store buffers in the chip
that might get in the way (memory writes are atomic).
We wrote a test case that tries every single 32bit opcode on the hardware
and compared it to the sim. There were a bunch of places in the sim where
we weren't strict enough (requiring certain parts of the opcode be set) so
we were treating a lot of invalid opcodes as valid ones. This sprinkles
out a lot additional checks in the dsp32alu class.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since these insns run in usermode, there should be no need to setup
RET[ENI] to safe values. They won't be dereferenced, and any insn
that returns via them are valid only in supervisor mode. Since this
is in the main exception code path, saving any insn at all is good
as it gets multiplied quickly (as in O(n^2) times).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since many people don't have a Blackfin toolchain available, only try to
regenerate the header file when in maintainer mode. This file rarely changes,
and when it does, we commit the generated output, so there's almost never a
need to run directly on an end system.
I noticed the sim code is using an old implementation of the maintainer logic.
I cut it over to the new macro (like gdb has been doing). In practice, it
makes no difference currently as nothing in the sim tree uses it, but I have a
follow up commit for the Blackfin tree that needs it.
From: Jayant R. Sonar <Jayant.Sonar@kpitcummins.com>
This patch adds simulator support for handling the armv7 instructions
'movw (immediate)' and 'movt'.
Compiler frequently use these instructions to load the 32bit addresses of
global variables, string pointers etc. into the general registers.
In absence of support of these instructions:
1. GDB run simulator fails to print even simple "hello world" string
on console.
2. Loading of global variable addresses into the registers fail causing
arithmetic operation failures.
Patch has been regression tested for arm-none-eabi (-march=armv7-a).
These sims have optional support for the dv-sockser model, so do not make
them hard failures. The Makefile made it seem like they didn't actually
support things dynamically, but a further code dive into the source and
the Makefile shows that things work out.
There's no need to put the majority of the logic into the 3rd arg of the
AC_ARG_ENABLE. Coupled with the lack of indentation, it makes it hard to
follow, error prone to update, and duplicates code (with the 4th arg).
So pull the logic out of the 3rd arg and outside of the AC_ARG_ENABLE
macro. This allows us to gut the 4th arg entirely, merge with the code
that followed the macro, and fix bugs related to the new dv-sockser in
the process.
Hopefully building the various sims with the default sim-hardware
settings, as well as with explicit --{dis,en}able-sim-hardware flags,
should all just work now.
* configure.ac: Fail if dv-sockser.o not available.
Error when --disable-sim-hardware is specified.
* tconfig.in: Conditionalize use of dv_sockser_install.
* configure: Regenerated.
* config.in: Regenerated.
* configure.ac: Address use of dv-sockser.o.
* tconfig.in: Conditionalize use of dv_sockser_install.
* configure: Regenerated.
* config.in: Regenerated.
* acinclude.m4: Add SIM_DV_SOCKSER_O which is empty on hosts
which do not support dv-sockser.o. Add always as option to
first argument to SIM_AC_OPTION_HARDWARE. Fail if hardware
is always required to be enabled by simulator.
(v850_bins): New function.
* simops.h: Add prototypes fir v850_rotl and v850_bins.
* v850-dc: Add entries for V850e3v5.
* v850.igen: Add support for v850e3v5.
(ld.dw, st.dw, rotl, bins): New patterns.
architecture type. Add support for bfd_mach_v850e2 and
bfd_mach_v850e2v3 machine numbers.
* v850.igen (dbtrap): Add support for SIM_OPEN_DEBUG.
(cmpf.d): Correct order of operands.
(cmpf.s): Likewise.
(trncf.dul): New pattern.
(trncf.duw): New pattern.
(trncf.sul): New pattern.
(trncf.suw): New pattern.
* v850-dc: Correct bitfield selection for TRNCF.SW and CVTF.SW.
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.
When the sim is built w/out the bfroms, we end up passing a length of 0 when
mapping the rom region which the core sim code rejects. So add an alias field
equal to the length to avoid that error.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The latest gdb sim-remote.c really wants a return value from the fetch/store
register functions, so update the Blackfin sim to avoid the warnings/errors.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The change of include file introduces some new warnings about functions
being used without a prototype. So a few more system includes have been
added to compensate for that.
sim/d10v/ChangeLog:
* interp.c: #include "config.h" instead of "sysdep.h".
Add conditional include of string.h or strings.h, as well as
conditional include of stdlib.h.
This file includes "gdb/callback.h", which includes "bfd.h", which
itself verifies that "config.h" was included earlier.
sim/erc32/ChangeLog:
* sys.h: Include "config.h".
* wrapper.c: Include config.h before system header files.
* callback.c: Include config.h before system header files.
* cgen-trace.c: Likewise.
* cgen-utils.c: Likewise.
* gentmap.c: Likewise.
* sim-if.c: Include config.h before system header files.
* compile.c: Include config.h before system header files.
* sim-main.h: Likewise.
* gdb-if.c: Include config.h before system header files.
* load.c: Likewise.
* syscalls.c: Likewise.
* trace.c: Likewise.
* interp.c: Include config.h before system header files.
Newer BF54x parts feature an updated GPIO block where all the interrupt
handling is split off, so create a new model for the pin interrupts.
This is missing the port forwarding aspects, but at least the register
interface should be there.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
These are randomly generated tests to track down issues in ASTAT
handling with shift insns.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
More ASTAT directed fixes, but this time at the dsp32shift insns.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This improves some of the arithmetic shifts to better match the
hardware (especially wrt ASTAT behavior). We hit areas where
the published documentation is thin so we have to rely on tests
run on the hardware to figure out how things should behave.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that we check for valid sub-insns in parallel insns, we can
enable the tests that explicitly validate those code paths.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that we keep track of the exact parallel insn slot we're in, we can
make sure that the current insn being decoded is valid for that slot.
This brings us much closer to the hardware in flagging invalid parallel
insn combinations.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Some insns need to know which slot they're in to determine whether they
are valid. So add an enum for each slot, and check that rather than the
overall insn len. This makes tracking things in the code much clearer.
However, this code is functionally the same, so a follow up patch will
leverage this more to properly flag invalid parallel insn combos.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that we have the se_all helpers together and working, we can see
what pieces are duplicated in each test and unify them in the common
header file.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The amod1 helper includes a leading space so it can expand into the empty
string when need be, which means the caller need not add spacing itself.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Parallel insns can only do one 32bit, then two 16bits. So if we see
a 2nd 32bit insn after the first 32bit in a parallel insn, abort.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This fix the build time warning:
warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
machs.c: In function 'bfin_model_cpu_init':
machs.c:1657:1: warning: 'bfrom' may be used uninitialized
in this function [-Wuninitialized]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Fix warning about mixing decls and code by moving auxvt_size decl
down to the scope where it is used.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current code triggers a warning:
dv-bfin_sic.c: In function 'bfin_sic_finish':
dv-bfin_sic.c:930:41: warning: operation on 'sic-><U78e8>.bf54x.iwr1'
may be undefined [-Wsequence-point]
This points out the IWR2 register was not being setup because of a typo.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The place where these funcs get defined do not include the header that
declares their prototypes. Add that to fix -Wmissing-prototypes:
devices.c:59:1: warning: no previous prototype for 'dv_bfin_mmr_invalid'
devices.c:66:1: warning: no previous prototype for 'dv_bfin_mmr_require'
devices.c:99:1: warning: no previous prototype for 'dv_bfin_mmr_check'
devices.c:159:14: warning: no previous prototype for 'dv_get_bus_num'
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The common code has a sim_core_trans_addr() helper that only the m32r code
uses. Move the inline extern in the m32r code to the proper common header.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Similar to logic in the cris exp, attempt a simple compile and if it fails
(presumably due to the compiler being broken), skip all the related tests.
Fortunately, most tests (~600 out of ~800) are pure assembly, so people should
still get pretty good coverage.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Before POSIX standardized strsignal(), old systems would hide the
prototype unless the normal extension defines were enabled. So use
the AC_USE_SYSTEM_EXTENSIONS helper for that.
Then make sure we include string.h ourselves in nrun.c rather than
relying on implicit includes via other sim headers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The sim code gets the logic for SIM_AC_OPTION_WARNINGS from gdb, but
it hasn't been updated in a good long while. Sync with the latest
gdb code.
There is a sim specific change in here: we disable -Werror for now.
This is because all sim code atm contains warnings. Will probably
have to slowly add a white list of targets which can tolerate this
until everyone is updated.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current se_all*opcodes tests are very similar in how they work.
In preparation for adding more tests along these lines, unify the
common bits into a framework that others can include and build off
of easily.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
From: Robin Getz <robin.getz@analog.com>
Overflow with shift operations happens independently of saturation, but
we have the logic merged. Extend the lshift function so that callers
can tell it when to handle each independently, and then do so when it's
needed.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This isn't entirely correct in that it assumes the signal numbering of
the target and host match, but seeing as we already make that assumption
in a few places, this patch doesn't make the situation any worse.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
To make it easier to support ebiu banks at other addresses, move the base to
a runtime parameter rather than structure. Future work will make this more
dynamic, but I'm waiting for more details first.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The 32bit allopcodes test had quite a bit of optimization added to it
so that it ran in a reasonable amount of time out of uncached memory.
Port those changes over to the 16bit test so the two share common code.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
AIX 7.1 defines st_pad[123] to st_[amc]tim.tv_pad, respectively,
breaking declaration of st_pad[123] members in struct solaris_stat.
Undefine them as this is no less terrible than other solutions (like
renaming the fields and losing the binding to Solaris' names).
From: Michael Haubenwallner <haubi@s01en24.gentoo.org>
We had some workarounds for old linux/mii.h headers, but it breaks with
newer ones. So tweak the checks a bit to work with newer ones. We'll
worry about older systems once someone complains.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Trying to run `headers` in an out-of-tree build fails atm due to the
relative srcdir paths being used in a location other than where they
were setup to be used from. Get abs_srcdir from configure and use
that instead where applicable.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current erc32 configure script only searches for -ltermcap to provide
any termcap funcs (which readlines needs). When building against a local
readline (which is static), we hit link failures like so:
gcc ...-I/-D flags... -o sis \
sis.o exec.o erc32.o func.o help.o float.o \
../../bfd/libbfd.a ../../opcodes/libopcodes.a \
../../libiberty/libiberty.a -lz -lnsl \
../../readline/libreadline.a -lm
../../readline/libreadline.a(display.o): In function 'cr':
.../readline/display.c:2486: undefined reference to 'tputs'
collect2: ld returned 1 exit status
make[2]: *** [sis] Error 1
Use AC_SEARCH_LIBS from gdb's configure.ac as suggested by Joel Brobecker
to check for additional termcap providers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The cr16 libgloss port does not define these syscall numbers, so trying
to use them results in build failures [1]. The cr16 code already uses
ifdefs around a bunch of syscalls, so extend that style to cover the
ones that are currently missing. Now we can at least compile.
[1] http://sourceware.org/ml/gdb-patches/2011-06/msg00118.html
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Building the sim on a sparc-solaris 2.8 machine fails when configured
with no extra sim hardware:
> for hw in ; do \
> echo "extern const struct hw_descriptor
> dv_${hw}_descriptor[];" ; \
> done >> tmp-hw.h
> echo 'const char version[] = "'"`sed q
> /[...]/../../gdb/version.in`"'";'
> >> version.c-tmp
> /bin/sh: -c: line 1: syntax error near unexpected token `;'
> /bin/sh: -c: line 1: `for hw in ; do \'
> make[3]: *** [hw-config.h] Error 2
The same thing happens with the version of bash that we got from
Sun as well (which is very old: 2.03.0(1)-release).
The problems comes from the fact that both shells are buggy, and
reject the following script:
for hw in ; do
[...]
done
The above is what sim/common/Makefile.in tries to execute when
generating hw-config.h.
In order to allow users to build out of the box on these machines,
this patch works around this bug. It does rely on the fact that
none of the tokens in SIM_HW contain whitespaces.
sim/common/ChangeLog:
* Make-common.in (hw-config.h): Work around bug in Solaris 2.8
system bourne shell.
Parsing target addresses is hard if not generally useless, so use the new
cb_get_string function to lookup the associated strings as well. Now the
trace output is quickly useful instead of just marginally so.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The common sim code provides a useful "get_string" function which reads
a C string out of the target's memory space. So rename and export it
for other people to use.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Lift the code that GDB is using to generate dependencies on the fly and
port it over to the sim. Now people shouldn't have to manually maintain
these in their Makefile's.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Some systems (like OS X) do not have posix_fallocate. Add a configure
check for it before we try to use it. This is less work than trying
to support old systems.
URL: http://sourceware.org/bugzilla/show_bug.cgi?id=13161
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Automake likes to dump macros automatically used into the aclocal.m4
file, but the common/aclocal.m4 naming prevents that. So rename it
to the more normal "acinclude.m4" so the aclocal tool can work.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that the sourceware tree generally requires autoconf-2.64, update
the sim tree to require that too.
This allows us to drop the long standing SIM_AC_COMMON/common.m4
workaround as autoconf 2.64+ seems to work for me.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The dv-cfi code uses the bool type but doesn't include the stdbool.h
header. I didn't notice for Blackfin targets as the core Blackfin
header will include stdbool.h, but most targets don't do this.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The "devices.h" header is Blackfin-specific, so trying to build dv-cfi
for any other target fails. Include the specific hw headers this file
needs directly.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Seems some fixes were added to the common.m4 file but not the
SIM_AC_COMMON macro. Keep the two in sync since they're supposed
to be the same thing.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The VIT_MAX insns can be used in parallel, so we need to use the store
buffer so we don't clobber the output register before we get a chance
to do a memory store with it.
Reported-by: Kai Iskratsch <kai@stella.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The sim_args_command prototype is in sim-options.h, so pull it in
directly rather than assuming a common header does it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Shell code before AC_INIT will be silently culled, and since the common
aclocal.m4 includes inline shell code, the file cannot be included before
AC_INIT. So update the example to show people including the file after
that rather than before to avoid random breakage.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The autoconf guys point out that our usage of AC_PROG_CC in the
SIM_AC_COMMON does not jive with their intended use.
http://www.gnu.org/software/autoconf/manual/autoconf.html#Expanded-Before-Required
So utilize AC_REQUIRE to make the warnings go away and generate
the correct code with different autoconf versions.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The sim dir has 30 configure.ac files and 2 configure.in files.
So rename the minority to be consistent.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* gen.c (insn_field_cmp): Tweak comment about neither field
being an insn_field_string with a cond_eq-to-value condition.
(insns_bit_useless) <case insn_field_string, case
decode_find_mixed>: Handle cond_eq-to-value fields as
insn_field_int.
* gen-idecode.c (print_idecode_validate): Handle
insn_field_string cond-equal-to-value fields as insn_field_int.
* gen-icache.c (print_icache_body): Add comment why constant
string fields are handled.
Since sim_do_command for many people simply calls sim_args_command, start
a unified version of it. For people who handle their own options, they
could switch to this by using sim_add_option_table instead.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The stat syscalls cannot work without a stat map, so declare one that
matches libgloss for virtual environments.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* iwmmxt.c (WCMPGT): Sign extend 32-bit values before performing a
signed compare.
(WMAC): Extend computed result before adding to result register.
(WRSA): Sign extend 32-bit values before shifting.
Now that the Blackfin libgloss code extracts the 2nd result and the
error code from the R1/R2 registers, have the sim fill them up.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The LSHIFT/ASHIFT insns that work with accumulators lacked AV/AVS
handling in the ASTAT register, so add it to match the hardware.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
If we're shifting accumulators, we don't want to touch the V bit in
ASTAT, so add size checks to the ashiftrt/lshiftrt helpers.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The logical shift insn does not sign extend before shifting, so
we shouldn't either.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This too should have been squashed into an earlier change. It covers
a few more cases in the V/VS saturation patch when working with TFU
and FU modes of dsp insns.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When the shift magnitude exceeds 32 bits, the values rotate around (since
the hardware is actually a barrel shifter). So handle this edge case,
update the corresponding AV bit in ASTAT which was missing previously,
and tweak the AZ setting based on how the hardware behaves.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The shift magnitude is a 5-bit signed value. When it is between 0 and
15, then we do the requested shift, but when it is outside of that, we
have to do the opposite.
That means we flip between lshift and ashiftrt to match the hardware.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This reverts the previous commit and does it right. This change got
lost in the shuffle of patches I have pending.
Basically the logic is to change the 32bit saturation (and then masked
to 16bits) to a proper 16bit saturation.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Some saturation cases with dsp mac insns were not setting the V flag.
So implement that part and split up the logic between the dual macs.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Our handling of the M_IU/M_TFU modes are missing signed saturation when
the MM flag is set, so add it to match the hardware behavior.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
After testing the hardware with all the different dsp flags, the MM flag
triggers sign extension in all modes. So drop the limited use of it, and
the local custom helper that was also extending unsigned values. We also
can see that the flag checks in the mult/mac insns have the same behavior
with sign extending, so add a helper func to keep the logic the same in
both places.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When using the IH modifier, we need to first saturate the value before
rounding it, and then further saturate it a bit more. This makes the
sim match the hardware behavior with these insns.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When the accumulator saturates, it needs to be greater than, but not
equal to, the largest unsigned value as this is what the hardware does.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Fixes an error reported by Tristan and which can be evidenced by
doing:
% powerpc-elf-gdb
(gdb) target sim --sysroot=var
Invalid option: --sysroot=/var
[...]
sim/ppc/ChangeLog:
* psim.c (psim_options): Fix length of comparison when checking
for --sysroot= option.
This patch improves the error message when an invalid option is
detected, by also printing the option that actually caused the error.
For instance, from GDB:
(gdb) target sim --hello
Invalid option: --hello
Usage:
[...]
We also added the usage after an invalid long-name option (Eg: --hello)
to be in line with what's being done for all other invalid options
being detected.
sim/ppc/ChangeLog:
* psim.c (psim_options): Add option that cause the error
in invalid-option error messages. Print the usage when
detecting an invalid long-name option.
There was a recent change that cuased the "target sim" command
to add a --sysroot option to the argument vector passed down to
the simulator. This caused a failure in the powerpc simulator,
as it did not recognize it. This patch fixes the problem by adding
support for the --sysroot option (it ignores it).
sim/ppc/ChangeLog:
* psim.c (psim_options): Accept and ignore `--sysroot=...'.
Now that the common sim testsuite code supports .S and .c files, we
can import the Blackfin testsuite. There are about ~800 tests here,
so I'm only attaching a compressed patch of them. Other than adding
files to sim/testsuite/sim/bfin/, the sim/configure.tgt file was
updated to mark Blackfin as having a testsuite, and sim/configure
regenerated.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The BF537 family glues a bunch of peripherals into single interrupt lines
that run into the SIC. To model this same behavior in the sim, we need to
use the glue-or device, and in order to use that, we need to tweak things
a bit in the mach code to allow declaring of these new devices.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The machs.c file is the best place for holding cpu-specific details, so
restructure the way the SIC manages its ports to do just that. Now the
SIC's have a standard set of input pins and the different line routing
from peripherals is kept in the device tree only. This better models
the hardware where the SIC doesn't care about the exact peripheral that
is sending it stuff, just which input pin it gets it on.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This patch fixes a build failure at link time due to
sim_complete_command being undefined. There was a recent change
that added this function to all the ports that do not use the
common/ subdir. But somehow, the erc32 port got missed.
sim/erc32/ChangeLog:
* interf.c (sim_complete_command): New stub function.
The current --sysroot parsing attempts to keep from leaking memory by
treating the empty string specially (sine this is the initial value),
but it ends up leaking memory when the arg is an empty string. So if
someone uses --sysroot "", the old value is leaked, as is the new one.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
A semi-recent change which regenerated nltvals.def somehow missed all of
the Blackfin syscalls. So regenerate against the latest tree to get them
back.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that the common code supports the syscall trace level, change the
Blackfin code from using the event level to the syscall level.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
It's useful to be able to trace just the system calls the simulated
program is calling, so add a new --trace-syscall option for ports to
leverage if they choose.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Pull the model data (register addresses/sizes) out of the different model
files and into the machs.h header. The models themselves don't care about
where they're mapped, only the mach code does. This allows us to keep the
model headers from being included in the mach code which can cause issues
with model-specific names colliding. Such as when a newer device model is
created, but with incompatible register names/layouts.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Some Blackfin parts tie a bunch of interrupt lines into a single OR
gate before feeding the result into the SIC. The glue-or device in
the sim provides a nice way of modeling this exact behavior. At the
moment though, it requires the device to be mapped into the address
space so that things could write to it directly. This is not needed
for the Blackfin usage, so make it optional. Now the glue devices
can be used to simply tie interrupt lines together.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The glue device has a bunch of "todos" for the misc bitwise devices.
So implement two for fun -- the glue-or and glue-xor.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Rather than requiring all sim tests to be preprocessed .s files, add
support for .S and .c files so we can easily write code using a higher
level language like C.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The UART has a LOOP_ENA bit in its MCR register where writes to the THR
go to the RBR. Implement support for this mode.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
A few bits in the newer UART LSR register are not sticky, so make sure
we clear them when returning updated status rather than leaving them
always set.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Make all of the pins bidirectional, and support sending signals when
software drives the pins as outputs.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When the mask a/b MMRs are written, the output signal might change levels
(as pins are [un]masked), so make sure we update the output level.
Further, make sure we handle edge ints correctly by first sending a high
signal followed by a low signal.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
For the ports that don't use the common/ subdir, we need to add stub funcs
to them to avoid build failures with gdb and command completion. These do
not implement the actual completion functionality ... any port that wants
that can either convert to the common/ subdir, or fill out the function on
their own time.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
A bunch of 32bit insns were not using the store buffer, so when they were
used in parallel insns, they would incorrectly clobber a register early.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
For now, only the sub-command name is completed. No support yet for
completing options to that command. But even this is a huge step as
currently, nothing is completed, and the basic "help sim" is fairly
obtuse as to what exactly the "sim" command accepts.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When most video related insns are used in parallel with Ireg loads, the
DISALGNEXCPT insn behavior is implicitly in effect.
Reported-by: Anton Shokurov <shokurov.anton.v@yandex.ru>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The SIC latches ints from peripherals to the CEC, but the peripherals
need to be able to tell the SIC when to stop. So use the incoming level
to figure out when to set the int bits and when to clear it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This doesn't currently generate any interrupts (as there doesn't appear
to be any documentation to *when* it would even do so), but since the
HRM does say an interrupt line exists between the OTP and the SIC, add
one for completeness sake. This will make a follow up patch easier.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
