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The m32r Linux syscall emulation logic assumes the host environment
directly matches -- it's being run on 32-bit little endian Linux.
This breaks building for non-Linux systems, so put all the code in
__linux__ ifdef checks. This code needs a lot of love to make it
work everywhere, but let's at least unbreak it for non-Linux hosts.
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In preparation for this script generating more files, change the output
argument to specify a directory. This drops the stdout behavior, but
since no one really runs this tool directly, it's not a big deal.
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Code should not be using these directly, instead they should be
resolving these dynamically via cb_host_to_target_errno maps.
Fix the Blackfin code and remove the defines out of the header
so no new code can rely on them.
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Now that ChangeLog entries are no longer used for sim patches,
this commit renames all relevant sim ChangeLog to ChangeLog-2021,
similar to what we would do in the context of the "Start of New
Year" procedure.
The purpose of this change is to avoid people merging ChangeLog
entries by mistake when applying existing commits that they are
currently working on.
Also throw in a .gitignore entry to keep people from adding new
ChangeLog files anywhere in the sim tree.
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We're starting to move more objects to the common build that sis did
not need before, so linking them is causing problems (when common
objects end up needing symbols from non-common objects). Switch it
to the libsim.a archive which will allow the link to pull out only
what it needs.
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These are copied from sim/common/Make-common.in.
On ppc the build fails without at least the 'info' target, e.g.:
Making info in ppc
make[4]: Entering directory '/<<BUILDDIR>>/gdb-10.2.2974.g5b45e89f56d+21.10.20210510155809/build/default/sim/ppc'
make[4]: *** No rule to make target 'info'. Stop.
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Move these options up to the common dir so we only test & export
them once across all ports.
The setting only affects igen based ports, and they were turning
this on by default, so keep the default in place.
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Now that the traps code has been unified, the configure script has no
unique logic in it, so it can be merged into the single common one.
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Do this as a sep commit to try and make the history easier to review.
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This makes the simulator work the same regardless of the target (bare
metal m32r-elf or Linux m32r-linux-gnu) by unifying the traps code.
It was mostly already the same with the only difference being support
for trap #2 reserved for Linux syscalls. We can move that logic to
runtime by checking the current environment operating mode instead.
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This improves the logic a bit by making the host<->target translations
a bit more clear. The structs still bleed way too much between the two
worlds, but let's fix one thing at a time.
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We don't want to handle Linux syscalls when in the virtual environment,
just the user environment, so adjust the Linux traps logic to check for
that specifically (instead of just skipping the operating environment).
Also tweak some testcases to explicitly specify the environment they run
under rather than relying on the default matching their needs. This gets
the tests passing for all m32r targets.
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The use of __NR_ defines in here conflicts a lot with the standard
host syscalls, sometimes leading to build errors (when the numbers
happen to be the same we get duplicate case handlers), and other
times leading to misbehavior (where the m32r syscall # is not what
is actually checked).
Namespace these using the standard that we already use: change the
__NR_ to TARGET_LINUX_SYS_ with a simple `sed`.
Also add a few missing includes so the code at least compiles.
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This makes it easier to override to point to an older version of guile.
The current cgen code doesn't work with guile-2, so need to point to an
older guile-1.8.
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Copy most of the common build warning logic over from the common
code to help keep code behavior a bit consistent, and turn them
on by default. We disable a few flags for now until we can clean
the code up.
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Now that the scache logic has been migrated into the common code,
there's nothing specific in these configure scripts, so merge them
into the common one.
The frv unique logic can be moved to a dedicated include and merged
in the common configure since the flag has been scoped to the arch.
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The cgen scache module is enabled by every cgen port, and with the
same default value of 16k (which matches the common default value).
Let's pull this option out of the individual ports (via CPPFLAGS)
and into the common code (via config.h).
The object itself is compiled only for cgen ports atm, so that part
doesn't change. The scache code is initialized dynamically via the
modules.c logic. That's why the profile code needs an additional
CGEN_ARCH check.
This will allow us to collapse arch configure files more. Merging
the source files will require more future work, but integrating the
cgen & non-cgen worlds itself will take a lot.
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This will make it possible to merge into the common configure by
making sure we never collide with other arches.
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Use the new modules.c framework to find & initialize this module.
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Use the new modules.c framework to find & initialize this module.
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Use the new modules.c framework to find & initialize this module.
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Use the new modules.c framework to find & initialize this module.
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Now that the model logic has been migrated into the runtime, there's
nothing specific in the bfin configure code, so merge it into the
common one.
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These were never fully migrated from the psim to common code, and since
we've finished moving the logic into the runtime sim state, we won't ever
need these. So punt them.
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This kills off another compile-time option by moving the setting to
the individual arch runtimes. This will allow dynamic selection by
the arch when doing a single build with multiple arches.
The sim_model_init rework is a little funky. In the past it was
disabled entirely if no default model was set. We maintain the
spirit of the logic by gating the fallback logic on whether the
port has defined any models.
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We want to do a single build with all arches in one binary which means
we need to namespace sim_machs on a per-arch basis. Move it from a
global variable to the sim description structure so it can be setup at
runtime.
Changing the SIM_MODEL->num from an enum to an int is unfortunate, but
we specifically don't want to maintain a centralized list anymore, and
this was never used directly in common code, just passed to per-arch
callbacks.
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This code hits some format-zero-length warnings, so hack the code
like we did in the common layers.
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The code is already clean, so sync this over from gdb warning.m4.
Also shuffle the order of the flags a bit to match the current gdb
warning.m4 code.
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The $(arch) variable is only setup for cgen ports, so calculate this
value dynamically. We also need to generate multiple inputs in order
to properly recreate the subdir Makefile, so list them all.
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We have some code tripping this warning, but it depends on the gcc
version & optimization levels. We've added some hints to the code
so some versions of gcc work better, but still not all. Let's just
disable the warning like gdb does.
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Fix building on systems w/out a kill function (e.g. Windows).
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This has been upstreamed into cgen itself.
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The array of pointers is never modified, so mark it const so it ends
up in the read-only data section.
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The compiler can still do basic format checks with vprintf style
funcs, so add the printf attribute to these.
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This helps these funcs get printf format checking coverage.
The sim-io.c hack as a result is a bit unfortunate, but the compiler
throws warnings when printing with empty strings. In this one case,
we actually want that due to the side-effect of the callback halting
execution for us.
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These cover functions aren't used anywhere, so drop them. There was
one caller, but it's old DOS code that most likely hasn't been tested
in years, so just delete that too.
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We require C11 now, so we can assume & require long long exists.
Drop this old code that hasn't been used for a long long time.
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Now that all bpf warnings have been cleaned up, turn on -Werror.
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Use PRI macros to display 64-bit types instead of assuming long is
a 64-bit type itself.
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Since there are no callers of this anywhere, nor is the function
implemented by anyone, drop it across the board to cleanup warnings.
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This hook doesn't return a value, so don't define it to 0 to avoid
the compiler warning about it not being used.
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Some of these were missing includes, some were unused funcs we can
cleanup, and some were missing prototypes for use in other files.
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The %p usage was a real bug that would probably cause a crash.
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This variable isn't set anywhere, so pass down NULL_CIA to indicate
we don't have a pc to pass.
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These functions never return anything, so change the int return type
to void to fix a bunch of compiler warnings about missing return.
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Add explicit braces to if bodies when the body is another if/else
to fix a bunch of compiler warnings.
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These arches use cgen memory functions, so make sure to include the
header in the modules.
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Various files were not including the relevant headers, or some funcs
were missing prototypes entirely, leading to mismatch between the
actual definition of the functions. Add includes to a few places and
fix the broken functions that are uncovered as a result. Fixing some
compile warnings (e.g. missing prototypes) often find real bugs.
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The cgen trace macros are a bit ugly in that they specify a series of
format strings & arguments in a single call. This means we pass a
non-literal string to printf and the compiler warns about it. Use
the diagnostic macros to suppress that in this one place.
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