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We're now able to detect all the regular CPUID feature flags from
ECX/EDX for EAX=1 :^)
None of the new ones are being used for anything yet, but they will show
up in /proc/cpuinfo and subsequently lscpu and SystemMonitor.
Note that I replaced the periods from the SSE 4.1 and 4.2 instructions
with underscores, which matches the internal enum names, Linux's
/proc/cpuinfo and the general pattern of replacing special characters
with underscores to limit feature names to [a-z0-9_].
The enum member stringification has been moved to a new function for
better re-usability and to avoid cluttering up Processor.cpp.
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grep -E and -F are POSIX standard, and meets all our matching needs.
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This helper is used by libgcc_s to figure out where the .eh_frame sections
are located for all loaded shared objects.
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Detection broke when we moved from '#ifdef DEBUG_FOO dbgln()' to 'dbgln<DEBUG_FOO>()'.
This patch makes detection more general, which sadly runs into more false-positives.
No rotten code was found, hooray! :^)
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Problem:
- These utility functions are only used in `AK`, but are being defined
in the top-level. This clutters the top-level.
Solution:
- Move the utility functions to `Meta/CMake/utils.cmake` and include
where needed.
- Also, move `all_the_debug_macros.cmake` into `Meta/CMake` directory
to consolidate the location of `*.cmake` script files.
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Problem:
- Modifying CXXFLAGS directly is an old CMake style.
- The giant and ever-growing list of `*_DEBUG` macros clutters the
top-level CMakeLists.txt.
Solution:
- Use the more current `add_compile_definitions` function.
- Sort all the debug options so that they are easy to view.
- Move the `*_DEBUG` macros to their own file which can be included
directly.
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