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This old port setup its own uintXX types, but since we require C11
now, we can assume the standard uintXX_t types exist and use them.
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Avoid use of TARGET_<syscall> defines and rely on the callback layers
to resolve these dynamically so we can support multiple syscall layers
instead of assuming the newlib/libgloss numbers all the time.
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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.
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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.
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The v850 port used this, and then it got copied to other ports even
though it wasn't needed. Clean it up to avoid portability issues on
platforms not providing this (e.g. mingw64 for Windows).
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These appear to have been blindly copied from the v850 port many years
ago as the code has never been used. Just delete it all and be done.
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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.
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Many ports have the same sim syscall logic, so add some helpers to handle
all the common details. The arches still have to deal with the unpacking
and packing of the syscall arguments, but the rest of the sim<->callback
glue is now shared.
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Almost every port implements these two callbacks in the same way, so
unify them in the common layer.
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Only one place used get_word/put_word, so inline the usage there.
All the rest is dead code so trim it.
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The syscall path was the only code checking the custom exception state
after recent cleanups. Once we change that to the common engine halt
function, we can delete that state entirely.
This also helps highlight some other dead code that we can cull.
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and definitions to ISO C.
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genericXor, genericBtst): Use `unsigned32'.
* op_utils.c: Likewise.
* mn10300.igen, am33.igen: Use `unsigned32', `signed32',
`unsigned64' or `signed64' where type width is relevant.
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