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[nix] add local debug override in run-emulator.nix #1001

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[nix] add local debug override in run-emulator.nix #1001

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15 changes: 13 additions & 2 deletions nix/t1/run/run-emulator.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -15,12 +15,23 @@
, ...
}@args:

let
DEFAULT = {
dramsim3_config = ../../../difftest/config/dramsim3-config.ini;
};

# The OVERRIDE mechanism is only used for local development
OVERRIDE = DEFAULT // {
# uncomment to disable dramsim
# dramsim3_config = "no";
};
in
assert if emulator.enableTrace
then (lib.assertMsg (waveFileName != null) "waveFileName shall be set for trace build")
else (lib.assertMsg (waveFileName == null) "waveFileName must not be set for non-trace build");
let
overrides = builtins.removeAttrs args [ "emulator" "emuExtraArgs" "testCase" "waveFileName" ];
dramsim3_config = ../../../difftest/config/dramsim3-config.ini;

plusargs = [
"+t1_elf_file=${testCase}/bin/${testCase.pname}.elf"
"+t1_rtl_event_path=rtl-event.jsonl"
Expand All @@ -29,7 +40,7 @@ let
"+t1_wave_path=${waveFileName}"
]
++ lib.optionals (topName == "t1rocketemu") [
"+t1_dramsim3_cfg=${dramsim3_config}"
"+t1_dramsim3_cfg=${OVERRIDE.dramsim3_config}"
"+t1_dramsim3_path=dramsim3_out"
];
emuDriverWithArgs = emulator.driverWithArgs ++ plusargs ++ emuExtraArgs;
Expand Down