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allow baremetal detector (#40)

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nihui 2024-02-24 13:26:28 +08:00 committed by GitHub
parent f45b1549e3
commit 3062efed38
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1 changed files with 52 additions and 49 deletions
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ruapu.h
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@ -70,37 +70,6 @@ static int ruapu_detect_isa(const void* some_inst)
} }
#endif // WINAPI_FAMILY == WINAPI_FAMILY_APP #endif // WINAPI_FAMILY == WINAPI_FAMILY_APP
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned char ruapu_some_##isa[] = { __VA_ARGS__, 0xc3 };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned char ruapu_some_##isa[] = { __VA_ARGS__, 0xc3 };
#endif
#elif __aarch64__ || defined(_M_ARM64)
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xd65f03c0 };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xd65f03c0 };
#endif
#elif __arm__ || defined(_M_ARM)
#if __thumb__
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0x4770 };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0x4770 };
#endif
#else
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xe12fff1e };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xe12fff1e };
#endif
#endif
#endif
#elif defined __ANDROID__ || defined __linux__ || defined __APPLE__ #elif defined __ANDROID__ || defined __linux__ || defined __APPLE__
#include <signal.h> #include <signal.h>
@ -139,6 +108,43 @@ static int ruapu_detect_isa(ruapu_some_inst some_inst)
return g_ruapu_sigill_caught ? 0 : 1; return g_ruapu_sigill_caught ? 0 : 1;
} }
#endif // defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__
#if defined _WIN32
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned char ruapu_some_##isa[] = { __VA_ARGS__, 0xc3 };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned char ruapu_some_##isa[] = { __VA_ARGS__, 0xc3 };
#endif
#elif __aarch64__ || defined(_M_ARM64)
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xd65f03c0 };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xd65f03c0 };
#endif
#elif __arm__ || defined(_M_ARM)
#if __thumb__
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0x4770 };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0x4770 };
#endif
#else
#ifdef _MSC_VER
#define RUAPU_INSTCODE(isa, ...) __pragma(section(".text")) __declspec(allocate(".text")) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xe12fff1e };
#else
#define RUAPU_INSTCODE(isa, ...) __attribute__((section(".text"))) static unsigned int ruapu_some_##isa[] = { __VA_ARGS__, 0xe12fff1e };
#endif
#endif
#endif
#else // defined _WIN32
#if defined(__i386__) || defined(__x86_64__) || __s390x__ #if defined(__i386__) || defined(__x86_64__) || __s390x__
#define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".byte " #__VA_ARGS__ : : : ); } #define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".byte " #__VA_ARGS__ : : : ); }
#elif __aarch64__ || __arm__ || __mips__ || __riscv || __loongarch__ #elif __aarch64__ || __arm__ || __mips__ || __riscv || __loongarch__
@ -147,24 +153,7 @@ static int ruapu_detect_isa(ruapu_some_inst some_inst)
#define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".long " #__VA_ARGS__ : : : ); } #define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".long " #__VA_ARGS__ : : : ); }
#endif #endif
#else // defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__ #endif // defined _WIN32
typedef const void* ruapu_some_inst;
static int ruapu_detect_isa(const void* some_inst)
{
// unknown platform, bare metal os ?
(void)some_inst;
return 0;
}
#define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { }
#endif // defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__
struct ruapu_isa_entry
{
const char* isa;
ruapu_some_inst inst;
int capable;
};
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64) #if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
RUAPU_INSTCODE(mmx, 0x0f, 0xdb, 0xc0) // pand mm0,mm0 RUAPU_INSTCODE(mmx, 0x0f, 0xdb, 0xc0) // pand mm0,mm0
@ -263,6 +252,13 @@ RUAPU_INSTCODE(zmmul, 0x02a50533) // mul a0,a0,a0
#undef RUAPU_INSTCODE #undef RUAPU_INSTCODE
struct ruapu_isa_entry
{
const char* isa;
ruapu_some_inst inst;
int capable;
};
#define RUAPU_ISAENTRY(isa) { #isa, (ruapu_some_inst)ruapu_some_##isa, 0 }, #define RUAPU_ISAENTRY(isa) { #isa, (ruapu_some_inst)ruapu_some_##isa, 0 },
struct ruapu_isa_entry g_ruapu_isa_map[] = { struct ruapu_isa_entry g_ruapu_isa_map[] = {
@ -359,10 +355,17 @@ RUAPU_ISAENTRY(zmmul)
void ruapu_init() void ruapu_init()
{ {
#if defined _WIN32 || defined __ANDROID__ || defined __linux__ || defined __APPLE__
for (size_t i = 0; i < sizeof(g_ruapu_isa_map) / sizeof(g_ruapu_isa_map[0]); i++) for (size_t i = 0; i < sizeof(g_ruapu_isa_map) / sizeof(g_ruapu_isa_map[0]); i++)
{ {
g_ruapu_isa_map[i].capable = ruapu_detect_isa(g_ruapu_isa_map[i].inst); g_ruapu_isa_map[i].capable = ruapu_detect_isa(g_ruapu_isa_map[i].inst);
} }
#else
// initialize g_ruapu_isa_map for baremetal here, default all zero
// there is still ruapu_some_XYZ() functions available
// but you have to work out your own signal handling
#warning ruapu does not support your baremetal os yet
#endif
} }
int ruapu_supports(const char* isa) int ruapu_supports(const char* isa)