mirror of
https://github.com/jart/cosmopolitan.git
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129 lines
3.9 KiB
C
129 lines
3.9 KiB
C
#ifndef COSMOPOLITAN_LIBC_DCE_H_
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#define COSMOPOLITAN_LIBC_DCE_H_
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#ifdef _COSMO_SOURCE
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/*─────────────────────────────────────────────────────────────────────────────╗
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│ cosmopolitan § autotune » dead code elimination │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#ifndef SUPPORT_VECTOR
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#ifdef __x86_64__
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/**
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* Supported Platforms Tuning Knob (Runtime & Compile-Time)
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* Tuning this bitmask will remove platform polyfills at compile-time.
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*/
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#define SUPPORT_VECTOR 255
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#else
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#define SUPPORT_VECTOR (_HOSTLINUX | _HOSTXNU | _HOSTFREEBSD)
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#endif
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#endif
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#define _HOSTLINUX 1
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#define _HOSTMETAL 2
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#define _HOSTWINDOWS 4
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#define _HOSTXNU 8
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#define _HOSTOPENBSD 16
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#define _HOSTFREEBSD 32
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#define _HOSTNETBSD 64
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#ifdef NDEBUG
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#define NoDebug() 1
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#else
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#define NoDebug() 0
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#endif
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#ifdef MODE_DBG
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#define IsModeDbg() 1
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#else
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#define IsModeDbg() 0
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#endif
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#ifdef TRUSTWORTHY
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#define IsTrustworthy() 1
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#else
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#define IsTrustworthy() 0
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#endif
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#ifdef TINY
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#define IsTiny() 1
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#else
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#define IsTiny() 0
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#endif
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#ifdef __OPTIMIZE__
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#define IsOptimized() 1
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#else
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#define IsOptimized() 0
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#endif
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#ifdef __SANITIZE_ADDRESS__
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#define IsAsan() 1
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#else
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#define IsAsan() 0
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#endif
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#ifdef __aarch64__
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#define IsAarch64() 1
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#define IsXnuSilicon() IsXnu()
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#else
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#define IsAarch64() 0
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#define IsXnuSilicon() 0
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#endif
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#if defined(__x86_64__)
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#define _ARCH_NAME "amd64"
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#elif defined(__aarch64__)
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#define _ARCH_NAME "arm64"
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#elif defined(__powerpc64__)
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#define _ARCH_NAME "ppc64"
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#elif defined(__s390x__)
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#define _ARCH_NAME "s390x"
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#elif defined(__riscv)
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#define _ARCH_NAME "riscv"
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#endif
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#define SupportsLinux() ((SUPPORT_VECTOR & _HOSTLINUX) == _HOSTLINUX)
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#define SupportsMetal() ((SUPPORT_VECTOR & _HOSTMETAL) == _HOSTMETAL)
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#define SupportsWindows() ((SUPPORT_VECTOR & _HOSTWINDOWS) == _HOSTWINDOWS)
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#define SupportsXnu() ((SUPPORT_VECTOR & _HOSTXNU) == _HOSTXNU)
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#define SupportsFreebsd() ((SUPPORT_VECTOR & _HOSTFREEBSD) == _HOSTFREEBSD)
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#define SupportsOpenbsd() ((SUPPORT_VECTOR & _HOSTOPENBSD) == _HOSTOPENBSD)
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#define SupportsNetbsd() ((SUPPORT_VECTOR & _HOSTNETBSD) == _HOSTNETBSD)
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#define SupportsBsd() \
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(!!(SUPPORT_VECTOR & (_HOSTXNU | _HOSTFREEBSD | _HOSTOPENBSD | _HOSTNETBSD)))
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#define SupportsSystemv() \
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(!!(SUPPORT_VECTOR & \
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(_HOSTLINUX | _HOSTXNU | _HOSTOPENBSD | _HOSTFREEBSD | _HOSTNETBSD)))
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#ifndef __ASSEMBLER__
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#define IsLinux() (SupportsLinux() && (__hostos & _HOSTLINUX))
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#define IsMetal() (SupportsMetal() && (__hostos & _HOSTMETAL))
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#define IsWindows() (SupportsWindows() && (__hostos & _HOSTWINDOWS))
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#define IsXnu() (SupportsXnu() && (__hostos & _HOSTXNU))
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#define IsFreebsd() (SupportsFreebsd() && (__hostos & _HOSTFREEBSD))
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#define IsOpenbsd() (SupportsOpenbsd() && (__hostos & _HOSTOPENBSD))
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#define IsNetbsd() (SupportsNetbsd() && (__hostos & _HOSTNETBSD))
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#define IsBsd() (IsXnu() || IsFreebsd() || IsOpenbsd() || IsNetbsd())
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#else
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/* clang-format off */
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#define IsLinux() $_HOSTLINUX,__hostos(%rip)
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#define IsMetal() $_HOSTMETAL,__hostos(%rip)
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#define IsWindows() $_HOSTWINDOWS,__hostos(%rip)
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#define IsBsd() $_HOSTXNU|_HOSTFREEBSD|_HOSTOPENBSD|_HOSTNETBSD,__hostos(%rip)
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#define IsXnu() $_HOSTXNU,__hostos(%rip)
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#define IsFreebsd() $_HOSTFREEBSD,__hostos(%rip)
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#define IsOpenbsd() $_HOSTOPENBSD,__hostos(%rip)
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#define IsNetbsd() $_HOSTNETBSD,__hostos(%rip)
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/* clang-format on */
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#endif
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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extern const int __hostos;
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int IsQemu(void);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* _COSMO_SOURCE */
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#endif /* COSMOPOLITAN_LIBC_DCE_H_ */
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