The verbose argument has always been an int treated as a bool, so
convert it to an explicit bool. Further, update the API docs to
match the reality that the verbose value is actually used by some
of the internal modules.
Clean up includes a bit by making ports include opcodes/ headers
explicitly. This matches other projects, and makes it more clear
where these headers are coming from.
This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
All the runtimes were only initializing a single CPU. When SMP is
enabled, things quickly crash as none of the other CPU structs are
setup. Change the default from 0 to the compile time value.
There's no need for these settings to be in sim-main.h which is shared
with common/ sim code, so move it all out to a new header which only
this port will include.
When reading/writing arbitrary data to the system's memory, the unsigned
char pointer type doesn't make that much sense. Switch it to void so we
align a bit with standard C library read/write functions, and to avoid
having to sprinkle casts everywhere.
This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
We use the program argv to both find the program to run (argv[0]) and
to hold the arguments to the program. Most of the time this is fine,
but if we want to let programs specify argv[0] independently (which is
possible in standard *NIX programs), this double duty doesn't work.
So let's split the path to the program to run out into a separate
field by itself. This simplifies the various sim_open funcs too.
By itself, this code is more of a logical cleanup than something that
is super useful. But it will open up customization of argv[0] in a
follow up commit. Split the changes to make it easier to review.
The basic "byte" type conflicts with Windows headers, and we already
have common types that provide the right sizes. So replace these with
the common ones to avoid issues.
CC dv-sockser.o
In file included from /usr/i686-w64-mingw32/usr/include/wtypes.h:8,
from /usr/i686-w64-mingw32/usr/include/winscard.h:10,
from /usr/i686-w64-mingw32/usr/include/windows.h:97,
from /usr/i686-w64-mingw32/usr/include/winsock2.h:23,
from ../../gnulib/import/sys/socket.h:684,
from ../../gnulib/import/netinet/in.h:43,
from .../build/sim/../../../sim/microblaze/../common/dv-sockser.c:39:
/usr/i686-w64-mingw32/usr/include/rpcndr.h:63:25: error: conflicting types for 'byte'; have 'unsigned char'
63 | typedef unsigned char byte;
| ^~~~
In file included from .../buildsim/../../../sim/microblaze/sim-main.h:21,
from .../buildsim/../../../sim/microblaze/../common/dv-sockser.c:24:
.../buildsim/../../../sim/microblaze/microblaze.h:94:25: note: previous declaration of 'byte' with type 'byte' {aka 'char'}
94 | typedef char byte;
| ^~~~
make: *** [Makefile:513: dv-sockser.o] Error 1
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.
The gdb/callback.h & gdb/remote-sim.h headers have nothing to do with
gdb and are really definitions for the libsim API under the sim/ tree.
While gdb uses those headers as a client, it's not specific to it. So
create a new sim/ namespace and move the headers there.
When in the virtual environment, have brki 8 trigger libgloss syscalls
like other ports. This also matches the ABI that Linux uses for its
syscalls (ignoring the syscall table differences).
I see the following error for --target=microblaze-elf:
../../../sim/microblaze/interp.c: In function 'sim_engine_run':
../../../sim/microblaze/interp.c:147:39: error: passing argument 2 of 'get_insn_microblaze' from incompatible pointer type [-Werror=incompatible-pointer-types]
147 | op = get_insn_microblaze (inst, &imm_unsigned, &insn_type,
| ^~~~~~~~~~~~~
| |
| int *
In file included from ../../bfd/bfd.h:45,
from ../../../sim/microblaze/interp.c:24:
../../../sim/microblaze/../../opcodes/microblaze-dis.h:34:57: note: expected '_Bool *' but argument is of type 'int *'
34 | extern enum microblaze_instr get_insn_microblaze (long, bool *,
| ^
sim/microblaze/ChangeLog:
* interp.c (sim_engine_run): Use bool instead of int.
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
Fix a long standing todo where we let getopt write directly to stderr
when an invalid option is passed. Use the sim io funcs instead as they
go through the filtered callbacks that gdb wants.
Other than the nice advantage of all sims having to declare one fewer
common function, this also fixes leakage in pretty much every sim.
Many were not freeing any resources, and a few were inconsistent as
to the ones they did. Now we have a single module that takes care of
all the logic for us.
Most of the non-cgen based ones could be deleted outright. The cgen
ones required adding a callback to the arch-specific cleanup func.
The few that still have close callbacks are to manage their internal
state.
We do not convert erc32, m32c, ppc, rl78, or rx as they do not use
the common sim core.
Re-use the existing memory core that handles reads/writes.
This drops support for the dumpmem command, but gdb itself has
support for dumping memory regions.
The verbose command is converted to the common --verbose flag
since only two call sites use it now.
Support for the clearstats command is dropped entirely, but no
other sim really does this, and the same thing can be done by
reloading. If it's important (clearing cycle stats) to someone,
we can add a common function for it.
This port already was storing its cpu state in the sim_cpu structure, so
converting it over was pretty easy. It is allocating memory itself still,
but we'll fix that up in the future at some point.
The mcore port had a few structs/defines that were never used.
Similarly, the microblaze port, because it was copied from mcore, has
that same dead code, and more. The watchpoint logic was never actually
used. Punt it all.
Since the sim doesn't have any debug support in it, we can only exit
cleanly. But this is still better than nothing.
Change the default microblaze sim to not dump the debug load output
when running. No other does this, and it breaks the testsuite.
These look like left over hacks from the days where we had to protect
ourselves from the compiler and C library. None of these checks are
relevant, and we have common configure logic to do header tests. Punt
them all now.
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.
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>
