add isa check

2026-01-04 07:56:37 +08:00
parent 53085d35d2
commit e1d2a8707d
13 changed files with 123 additions and 533 deletions
@@ -0,0 +1,61 @@
+#ifndef SN_TARGET
+#define SN_TARGET
+
+typedef enum SN_OS_T {
+        SN_OS_WINDOWS,
+        SN_OS_LINUX,
+        SN_OS_MACOS,
+        SN_OS_IOS,
+        SN_OS_ANDROID,
+        SN_OS_UNKNOWN
+} SN_OS_T;
+
+typedef enum SN_ARCH_T {
+        SN_ARCH_X86_64,
+        SN_ARCH_ARM64,
+        SN_ARCH_RISCV64,
+        SN_ARCH_PPC64le,
+} SN_ARCH_T;
+
+/*
+ * Target selection policy:
+ * - Default (no SN_EXTERN_TARGET): fixed Windows + x86_64.
+ * - External (SN_EXTERN_TARGET): build system must provide SN_OS and SN_ARCH.
+ */
+#ifndef SN_EXTERN_TARGET
+
+#define SN_OS_TARGET SN_OS_WINDOWS
+#define SN_ARCH_TARGET SN_ARCH_X86_64
+
+#else
+
+#ifndef SN_OS_TARGET
+#error "SN_EXTERN_TARGET is defined but SN_OS is not provided."
+#endif
+
+#ifndef SN_ARCH_TARGET
+#error "SN_EXTERN_TARGET is defined but SN_ARCH is not provided."
+#endif
+
+/* Validate externally supplied values are within known enum constants. */
+#if (SN_OS_TARGET != SN_OS_WINDOWS) && (SN_OS_TARGET != SN_OS_LINUX) && (SN_OS_TARGET != SN_OS_MACOS) && \
+        (SN_OS_TARGET != SN_OS_IOS) && (SN_OS_TARGET != SN_OS_ANDROID) && (SN_OS_TARGET != SN_OS_UNKNOWN)
+#error "SN_OS has an invalid value. Use SN_OS_<...> enum constants."
+#endif
+
+#if (SN_ARCH_TARGET != SN_ARCH_X86_64) && (SN_ARCH_TARGET != SN_ARCH_ARM64) && (SN_ARCH_TARGET != SN_ARCH_RISCV64) && \
+        (SN_ARCH_TARGET != SN_ARCH_PPC64le)
+#error "SN_ARCH has an invalid value. Use SN_ARCH_<...> enum constants."
+#endif
+
+#endif
+
+#ifndef SN_IS_OS
+#define SN_IS_OS(os) ((SN_OS_TARGET) == (os))
+#endif
+
+#ifndef SN_IS_ARCH
+#define SN_IS_ARCH(arch) ((SN_ARCH_TARGET) == (arch))
+#endif
+
+#endif // SN_TARGET