mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-06 18:00:17 +02:00
Ryan Houdek
bbb8e1ccab
With our flags being optimized, this does even less than when it was introduced. It's a hack, people are tinkering with it thinking it'll do something. Get rid of it.
562 lines
21 KiB
Plaintext
562 lines
21 KiB
Plaintext
{
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"Options": {
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"CPU": {
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"Multiblock": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"Controls multiblock code compilation",
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"Can cause long JIT compilation times and stutter"
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]
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},
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"MaxInst": {
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"Type": "int32",
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"Default": "5000",
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"Desc": [
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"Maximum number of instruction to store in a block"
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]
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},
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"HostFeatures": {
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"Type": "strenum",
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"Default": "FEXCore::Config::HostFeatures::OFF",
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"Enums": {
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"ENABLESVE": "enablesve",
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"DISABLESVE": "disablesve",
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"ENABLEAVX": "enableavx",
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"DISABLEAVX": "disableavx",
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"ENABLEAFP": "enableafp",
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"DISABLEAFP": "disableafp",
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"ENABLELRCPC": "enablelrcpc",
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"DISABLELRCPC": "disablelrcpc",
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"ENABLELRCPC2": "enablelrcpc2",
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"DISABLELRCPC2": "disablelrcpc2",
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"ENABLECSSC": "enablecssc",
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"DISABLECSSC": "disablecssc",
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"ENABLEPMULL128": "enablepmull128",
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"DISABLEPMULL128": "disablepmull128",
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"ENABLERNG": "enablerng",
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"DISABLERNG": "disablerng",
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"ENABLECLZERO": "enableclzero",
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"DISABLECLZERO": "disableclzero",
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"ENABLEATOMICS": "enableatomics",
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"DISABLEATOMICS": "disableatomics",
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"ENABLEFCMA": "enablefcma",
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"DISABLEFCMA": "disablefcma",
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"ENABLEFLAGM": "enableflagm",
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"DISABLEFLAGM": "disableflagm",
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"ENABLEFLAGM2": "enableflagm2",
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"DISABLEFLAGM2": "disableflagm2",
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"ENABLEFRINTTS": "enablefrintts",
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"DISABLEFRINTTS": "disablefrintts",
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"ENABLECRYPTO": "enablecrypto",
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"DISABLECRYPTO": "disablecrypto",
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"ENABLERPRES": "enablerpres",
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"DISABLERPRES": "disablerpres",
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"ENABLESVEBITPERM": "enablesvebitperm",
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"DISABLESVEBITPERM": "disablesvebitperm",
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"ENABLEPRESERVEALLABI": "enablepreserveallabi",
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"DISABLEPRESERVEALLABI": "disablepreserveallabi",
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"ENABLEWFXT": "enablewfxt",
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"DISABLEWFXT": "disablewfxt",
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"ENABLE3DNOW": "enable3dnow",
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"DISABLE3DNOW": "disable3dnow",
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"ENABLESSE4A": "enablesse4a",
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"DISABLESSE4A": "disablesse4a"
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},
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"Desc": [
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"Allows controlling of the CPU features in the JIT.",
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"\toff: Default CPU features queried from CPU features",
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"\t{enable,disable}sve: Will force enable or disable sve even if the host doesn't support it",
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"\t{enable,disable}avx: Will force enable or disable avx even if the host doesn't support it",
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"\t{enable,disable}afp: Will force enable or disable afp even if the host doesn't support it",
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"\t{enable,disable}lrcpc: Will force enable or disable lrcpc even if the host doesn't support it",
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"\t{enable,disable}lrcpc2: Will force enable or disable lrcpc2 even if the host doesn't support it",
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"\t{enable,disable}cssc: Will force enable or disable cssc even if the host doesn't support it",
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"\t{enable,disable}pmull128: Will force enable or disable pmull128 even if the host doesn't support it",
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"\t{enable,disable}rng: Will force enable or disable rng even if the host doesn't support it",
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"\t{enable,disable}clzero: Will force enable or disable clzero even if the host doesn't support it",
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"\t{enable,disable}atomics: Will force enable or disable ARMv8.1 LSE atomics even if the host doesn't support it",
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"\t{enable,disable}fcma: Will force enable or disable fcma even if the host doesn't support it",
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"\t{enable,disable}flagm: Will force enable or disable flagm even if the host doesn't support it",
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"\t{enable,disable}flagm2: Will force enable or disable flagm2 even if the host doesn't support it",
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"\t{enable,disable}crypto: Will force enable or disable crypto extensions even if the host doesn't support it",
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"\t{enable,disable}rpres: Will force enable or disable rpres even if the host doesn't support it",
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"\t{enable,disable}svebitperm: Will force enable or disable svebitperm even if the host doesn't support it",
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"\t{enable,disable}preserveallabi: Will force enable or disable preserve_all abi even if the host doesn't support it",
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"\t{enable,disable}wfxt: Will force enable or disable wfxt even if the host doesn't support it",
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"\t{enable,disable}3dnow: Will force enable or disable 3DNow! even if the host doesn't support it",
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"\t{enable,disable}sse4a: Will force enable or disable SSE4a even if the host doesn't support it"
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]
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},
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"SmallTSCScale": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"Scales the cycle counter on systems that have low frequencies."
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]
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}
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},
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"Emulation": {
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"RootFS": {
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"Type": "str",
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"Default": "",
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"Desc": [
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"Which Root filesystem prefix to use",
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"This can be a filesystem path",
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"\teg: ~/RootFS/Debian_x86_64",
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"Or this can be a name of a rootfs",
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"If the named rootfs exists in the FEX data folder then it will use that one",
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"\teg: $HOME/.fex-emu/RootFS/<RootFS name>/",
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"Or if you have XDG_DATA_HOME the config will search in that directory",
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"\teg: $XDG_DATA_HOME/.fex-emu/RootFS/<RootFS name>/"
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]
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},
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"ThunkHostLibs": {
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"Type": "str",
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"Default": "@CMAKE_INSTALL_FULL_LIBDIR@/fex-emu/HostThunks",
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"Desc": [
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"Folder to find the host-side thunking libraries."
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]
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},
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"ThunkGuestLibs": {
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"Type": "str",
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"Default": "@CMAKE_INSTALL_PREFIX@/share/fex-emu/GuestThunks",
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"Desc": [
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"Folder to find the guest-side thunking libraries."
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]
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},
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"ThunkConfig": {
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"Type": "str",
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"Default": "",
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"Desc": [
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"A json file specifying where to overlay the thunks.",
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"This can be a filesystem path",
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"\teg: ~/MyThunkConfig.json",
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"Or this can be a named of a Thunk config file",
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"If the named config file exists in the FEX data folder folder the it will use that one",
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"\teg: $HOME/.fex-emu/ThunkConfigs/<ThunkConfig name>",
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"Or if you have XDG_DATA_HOME the config will search in that directory",
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"\teg: $XDG_DATA_HOME/.fex-emu/ThunkConfigs/<ThunkConfig name>"
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]
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},
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"Env": {
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"Type": "strarray",
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"Default": "",
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"Desc": [
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"Adds an environment variable to the emulated environment."
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]
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},
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"HostEnv": {
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"Type": "strarray",
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"Default": "",
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"Desc": [
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"Adds an environment variable to the host environment.",
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"This can be useful for setting environment variables that thunks can pick up.",
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"Typically isn't necessary since the guest libc isn't thunked. But is possible."
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]
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},
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"AdditionalArguments": {
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"Type": "strarray",
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"Default": "",
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"Desc": [
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"Allows the user to pass additional arguments to the application"
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]
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},
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"DisableL2Cache": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Disables FEXCore's JIT L2 cache lookup. Saving memory.",
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"Can potentially introduce more stutters."
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]
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},
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"DynamicL1Cache": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Switches FEXCore's JIT L1 cache to be dynamically sized. Saving memory.",
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"Can potentially introduce more stutters."
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]
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},
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"DynamicL1CacheIncreaseCountHeuristic": {
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"Type": "uint64",
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"Default": "250",
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"Desc": [
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"Threshold of lookups per second that the L1 dynamic cache should increase its size.",
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"Lower numbers means more aggressive scaling upward to the maximum size.",
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"Higher numbers means more conservative scaling, using less memory.",
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"Can potentially introduce stutters, more likely the higher the number.",
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"Don't have this number smaller than the decrease count!"
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]
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},
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"DynamicL1CacheDecreaseCountHeuristic": {
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"Type": "uint64",
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"Default": "50",
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"Desc": [
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"Threshold of lookups per second that the L1 dynamic cache should decrease its size.",
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"The higher the number, the more aggressively it reduces the L1 cache size.",
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"Lower numbers means more conservative memory savings.",
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"Can potentially introduce more stutters, more likely the higher the number.",
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"Don't have this number larger than the increase count!"
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]
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}
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},
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"Debug": {
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"SingleStep": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Single stepping configuration."
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]
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},
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"GdbServer": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Enables the GDB server."
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]
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},
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"DumpIR": {
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"Type": "str",
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"Default": "no",
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"Desc": [
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"Folder to dump the IR in to.",
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"[no, stdout, stderr, server, <Folder>]"
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]
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},
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"PassManagerDumpIR": {
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"Type": "strenum",
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"Default": "FEXCore::Config::PassManagerDumpIR::OFF",
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"Enums": {
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"BEFOREOPT": "beforeopt",
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"AFTEROPT": "afteropt",
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"BEFOREPASS": "beforepass",
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"AFTERPASS": "afterpass"
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},
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"Desc": [
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"Allows controlling when FEX dumps its IR.",
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"\toff: IR dumping will be disabled",
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"\tbeforeopt: Dump IR before any optimizations",
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"\tafteropt: Dump IR after all optimizations",
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"\tbeforepass: Dump IR before every optimization pass",
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"\tafterpass: Dump IR after every optimization pass"
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]
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},
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"DumpGPRs": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"When the test harness ends, print the GPR state."
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]
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},
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"O0": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Disables optimizations passes for debugging."
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]
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},
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"GlobalJITNaming": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Uses JITSymbols to name all JIT state as one symbol",
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"Useful for querying how much time is spent inside of the JIT",
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"Profiling tools will show JIT time as FEXJIT"
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]
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},
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"LibraryJITNaming": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Uses JITSymbols to name JIT symbols grouped by library",
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"Useful for querying how much time is spent in each guest library",
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"Can be used to help guide thunk generation"
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]
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},
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"BlockJITNaming": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Uses JITSymbols to name JIT symbols",
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"Useful for determining hot blocks of code",
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"Has some file writing overhead per JIT block"
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]
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},
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"GDBSymbols": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Integrates with GDB using the JIT interface.",
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"Needs the fex jit loader in GDB, which can be loaded via `jit-reader-load libFEXGDBReader.so.`",
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"Also needs x86_64-linux-gnu-objdump in PATH.",
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"Can be very slow."
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]
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},
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"InjectLibSegFault": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Sets the environment variable LD_PRELOAD=libSegFault.so",
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"This allows the user to very easily enable libSegFault without dealing with environment variables",
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"Very useful for applications that have launch scripts that set the variable to nothing at launch",
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"Set this in an application configuration for injecting in to only specific applications.",
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"\tNote: If x86/x86_64 libSegFault.so isn't installed then this option won't work."
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]
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},
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"Disassemble": {
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"Type": "strenum",
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"Default": "FEXCore::Config::Disassemble::OFF",
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"Enums": {
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"DISPATCHER": "dispatcher",
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"BLOCKS": "blocks",
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"STATS": "stats"
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},
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"Desc": [
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"Allows controlling of the vixl disassembler.",
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"\toff: No disassembly will be output",
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"\tdispatcher: Will enable disassembly of the JIT dispatcher loop",
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"\tblocks: Will enable disassembly of the translated instruction code blocks",
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"\tstats: Will print stats when disassembling the code"
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]
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},
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"ForceSVEWidth": {
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"Type": "uint32",
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"Default": "0",
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"Desc": [
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"Allows overriding the SVE width in the vixl simulator.",
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"Useful as a debugging feature."
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]
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},
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"DisableTelemetry": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Disables telemetry at runtime.",
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"Useful for CI instcountCI mostly"
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]
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}
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},
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"Logging": {
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"SilentLog": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"Disables logging"
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]
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},
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"OutputLog": {
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"Type": "str",
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"Default": "server",
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"Desc": [
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"File to write FEX output to.",
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"[stdout, stderr, server, <Filename>]"
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]
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},
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"TelemetryDirectory": {
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"Type": "str",
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"Default": "",
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"Desc": [
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"Redirects the telemetry folder that FEX usually writes to.",
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"By default telemetry data is stored in {$FEX_APP_DATA_LOCATION,{$XDG_DATA_HOME,$HOME}/.fex-emu/Telemetry/}"
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]
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},
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"ProfileStats": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Enables FEX's low-overhead sampling profile statistics.",
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"Requires a supported version of Mangohud to see the results"
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]
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},
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"EnableGpuvisProfiling": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Enables profiling when FEX was built with the gpuvis profiler backend."
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]
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}
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},
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"Hacks": {
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"SMCChecks": {
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"Type": "uint8",
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"Default": "FEXCore::Config::CONFIG_SMC_MTRACK",
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"TextDefault": "mtrack",
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"ArgumentHandler": "SMCCheckHandler",
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"Desc": [
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"Checks code for modification before execution.",
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"\tnone: No checks",
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"\tmtrack: Page tracking based invalidation (default)",
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"\tfull: Validate code before every run (slow)"
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]
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},
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"TSOEnabled": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"Controls TSO IR ops.",
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"Highly likely to break any multithreaded application if disabled."
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]
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},
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"VectorTSOEnabled": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"When TSO emulation is enabled, controls if vector loadstores should also be atomic."
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]
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},
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"MemcpySetTSOEnabled": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"When TSO emulation is enabled, controls if memcpy and memset should also be atomic.",
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"Only affects REP MOVS and REP STOS instructions"
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]
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},
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"HalfBarrierTSOEnabled": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"When TSO emulation is enabled, controls if unaligned loads and stores should be backpatched to half-barrier atomics.",
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"Can be dangerous due to aligned loadstores through the same code now become non-atomic."
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]
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},
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"StrictInProcessSplitLocks": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Strict global lock when handling an unaligned atomic that crosses a 16-byte or cacheline granularity",
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"This is required to ensure a split-lock doesn't tear inside the process"
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]
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},
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"VolatileMetadata": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"Use volatile metadata in PE files to inform TSO instructions when available.",
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"When metadata is unavailable falls back to the currently enabled TSO options."
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]
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},
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"X87ReducedPrecision": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Emulates X87 floating point using 64-bit precision. This reduces emulation accuracy and may result in rendering bugs."
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]
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},
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"StallProcess": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Forces a process to stall out on initialization",
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"Useful for a process that keeps restarting and doesn't work"
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]
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},
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"HideHypervisorBit": {
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"Type": "bool",
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"Default": "false",
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"Desc": [
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"Hides the hypervisor CPUID bit when set.",
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"Should only be used for applications that have issues with this set."
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]
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},
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"StartupSleep": {
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"Type": "uint32",
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"Default": "0",
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"Desc": [
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"Sleeps the process at startup for a duration of seconds.",
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"Useful if an application crashes too quickly to attach a debugger."
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]
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},
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"StartupSleepProcName": {
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"Type": "str",
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"Default": "",
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"Desc": [
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"Contrains the startup sleep to only apply to processes that match this name."
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]
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},
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"MonoHacks": {
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"Type": "bool",
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"Default": "true",
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"Desc": [
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"Permits a hook-based SMC approach and smaller JIT blocks when mono is detected."
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]
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}
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},
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"Misc": {
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"ServerSocketPath": {
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"Type": "str",
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"Default": "",
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"Desc": [
|
|
"Override for a FEXServer socket path. Only useful for chroots."
|
|
]
|
|
},
|
|
"NeedsSeccomp": {
|
|
"Type": "bool",
|
|
"Default": "false",
|
|
"Desc": [
|
|
"Disables inline syscalls in order to support seccomp handling"
|
|
]
|
|
},
|
|
"ExtendedVolatileMetadata": {
|
|
"Type": "str",
|
|
"Default": "",
|
|
"Desc": [
|
|
"Configuration provided volatile metadata. Only implemented for WoW64/arm64ec.",
|
|
"Limited in its use but can be handy.",
|
|
"Extends on top of what Microsoft has for volatile metadata, but also supported for WoW64.",
|
|
"Colon delimited modules, then semi-colon delimited instructions, then comma delimited ranges",
|
|
"Default disables TSO in the module, unless instructions overlap the range",
|
|
"<module>;<offset begin>-<offset-end>,...;<instruction offset to force TSO>,...:<another>",
|
|
"examples:",
|
|
" * Disable TSO for a full module: Just provide the module name:",
|
|
" `hl2_linux`",
|
|
" * Disable TSO for a part of the module:",
|
|
" `hl2_linux;<offset begin>-<offset-end>`",
|
|
" * Disable TSO for a part of the module, but enable TSO for some instructions within the module",
|
|
" `hl2_linux;<offset begin>-<offset-end>;<instruction offset>,<instruction offset>`",
|
|
" * Disable TSO for multiple modules",
|
|
" `hl2_linux:libsdl2.so`"
|
|
]
|
|
}
|
|
}
|
|
},
|
|
"UnnamedOptions": {
|
|
"Misc": {
|
|
"INTERPRETER_INSTALLED": {
|
|
"Type": "bool",
|
|
"Default": "false"
|
|
},
|
|
"APP_FILENAME": {
|
|
"Type": "str",
|
|
"Default": ""
|
|
},
|
|
"APP_CONFIG_NAME": {
|
|
"Type": "str",
|
|
"Default": "",
|
|
"Desc": [
|
|
"This is the application config name that has been loaded.",
|
|
"This differs from APP_FILENAME in two ways",
|
|
"Where APP_FILENAME always points to the executable path that FEX-Emu is executing.",
|
|
"This matches what is used to load the AppLayer configuration name.",
|
|
"When running through a compatibility layer like wine, this will only be the exe name, instead of wine full path."
|
|
]
|
|
},
|
|
"IS64BIT_MODE": {
|
|
"Type": "bool",
|
|
"Default": "false"
|
|
},
|
|
"DISABLE_VIXL_INDIRECT_RUNTIME_CALLS": {
|
|
"Type": "bool",
|
|
"Default": "true",
|
|
"Desc": [
|
|
"This option is used for the InstructionCountCI so it can generate the same codegen between Arm64 hosts and vixl simulator hosts.",
|
|
"Vixl simulator indirect runtime calls are a special hlt instruction with metadata after it. Effectively making a custom call instruction.",
|
|
"With visual simulator calls disabled, the code generation would be the same as on a native Arm64 host, but running the code is broken."
|
|
]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|