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The --enable-sim-hostendian flag was purely so people had an escape route
for when cross-compiling. This is because historically, AC_C_BIGENDIAN
did not work in those cases. That was fixed a while ago though, so we can
require that macro everywhere now and simplify a good bit of code.
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Rather than re-invent endian defines, as well as maintain our own list
of OS & arch-specific includes, punt all that logic in favor of the bfd
ones already set up and maintained elsewhere. We already rely on the
bfd library, so leveraging the endian aspect should be fine.
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gdb/ChangeLog:
Update year range in copyright notice of all files.
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The disasm framework reserves the private_data field for the disassemblers
themselves, not for people who use the disassembler. Instead, there is an
application_data field for callers such as the sim. Switch to it to avoid
random corruption/crashes when the disassemblers use private_data.
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Pretty much all targets are using this module already, so add it to the
common list of objects. The only oddball out here is cris and that's
because it supports loading via an offset for all the phdrs. We drop
support for that.
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No arch is using this anymore, and we want all new ports using the
hardware framework instead. Punt WITH_DEVICES and the two callbacks
device_io_{read,write}_buffer.
We can also punt the tconfig.h file as no port is using it anymore.
This fixes in-tree builds that get confused by picking up the wrong
one (common/ vs <port>/) caused by commit ae7d0cac8ce971f7108d270c.
Any port that needs to set up a global define can use their own
sim-main.h file that they must provide regardless.
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For targets that process argv in sim_create_inferior, improve the code:
- provide more details in the comment
- make the check for when to re-init more robust
- clean out legacy sim_copy_argv code
This will be cleaned up more in the future when we have a common inferior
creation function, but at least help new ports get it right until then.
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* aarch64/simulator.c (system_get): New function. Provides read
access to the dczid system register.
(do_mrs): New function - implements the MRS instruction.
(dexSystem): Call do_mrs for the MRS instruction. Halt on
unimplemented system instructions.
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sim * configure.tgt: Add aarch64 entry.
* configure: Regenerate.
* sim/aarch64/configure.ac: New configure template.
* sim/aarch64/aclocal.m4: Generate.
* sim/aarch64/config.in: Generate.
* sim/aarch64/configure: Generate.
* sim/aarch64/cpustate.c: New file - functions for accessing
AArch64 registers.
* sim/aarch64/cpustate.h: New header.
* sim/aarch64/decode.h: New header.
* sim/aarch64/interp.c: New file - interface between GDB and
simulator.
* sim/aarch64/Makefile.in: New makefile template.
* sim/aarch64/memory.c: New file - functions for simulating
aarch64 memory accesses.
* sim/aarch64/memory.h: New header.
* sim/aarch64/sim-main.h: New header.
* sim/aarch64/simulator.c: New file - aarch64 simulator
functions.
* sim/aarch64/simulator.h: New header.
include/gdb * sim-aarch64.h: New file.
sim/test * configure: Regenerate.
* sim/aarch64: New directory.
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