/*
* Copyright (c) 2016-2020, Intel Corporation
- * Copyright (c) 2024, VectorCamp PC
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
#include "hs_common.h"
#include "hs_runtime.h"
#include "ue2common.h"
-
-/* streamlining the dispatch to eliminate runtime checking/branching:
- * what we want to do is, first call to the function will run the resolve
- * code and set the static resolved/dispatch pointer to point to the
- * correct function. Subsequent calls to the function will go directly to
- * the resolved ptr. The simplest way to accomplish this is, to
- * initially set the pointer to the resolve function.
- * To accomplish this in a manner invisible to the user,
- * we do involve some rather ugly/confusing macros in here.
- * There are four macros that assemble the code for each function
- * we want to dispatch in this manner:
- * CREATE_DISPATCH
- * this generates the declarations for the candidate target functions,
- * for the fat_dispatch function pointer, for the resolve_ function,
- * points the function pointer to the resolve function, and contains
- * most of the definition of the resolve function. The very end of the
- * resolve function is completed by the next macro, because in the
- * CREATE_DISPATCH macro we have the argument list with the arg declarations,
- * which is needed to generate correct function signatures, but we
- * can't generate from this, in a macro, a _call_ to one of those functions.
- * CONNECT_ARGS_1
- * this macro fills in the actual call at the end of the resolve function,
- * with the correct arg list. hence the name connect args.
- * CONNECT_DISPATCH_2
- * this macro likewise gives up the beginning of the definition of the
- * actual entry point function (the 'real name' that's called by the user)
- * but again in the pass-through call, cannot invoke the target without
- * getting the arg list , which is supplied by the final macro,
- * CONNECT_ARGS_3
- *
- */
-
-
#if defined(ARCH_IA32) || defined(ARCH_X86_64)
#include "util/arch/x86/cpuid_inline.h"
#include "util/join.h"
return (RTYPE)HS_ARCH_ERROR; \
} \
\
- /* dispatch routing pointer for this function */ \
- /* initially point it at the resolve function */ \
- static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__); \
- static RTYPE (* JOIN(fat_dispatch_, NAME))(__VA_ARGS__) = \
- &JOIN(resolve_, NAME); \
- \
/* resolver */ \
- static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__) { \
+ static RTYPE (*JOIN(resolve_, NAME)(void))(__VA_ARGS__) { \
if (check_avx512vbmi()) { \
- fat_dispatch_ ## NAME = &JOIN(avx512vbmi_, NAME); \
+ return JOIN(avx512vbmi_, NAME); \
} \
- else if (check_avx512()) { \
- fat_dispatch_ ## NAME = &JOIN(avx512_, NAME); \
+ if (check_avx512()) { \
+ return JOIN(avx512_, NAME); \
} \
- else if (check_avx2()) { \
- fat_dispatch_ ## NAME = &JOIN(avx2_, NAME); \
+ if (check_avx2()) { \
+ return JOIN(avx2_, NAME); \
} \
- else if (check_sse42() && check_popcnt()) { \
- fat_dispatch_ ## NAME = &JOIN(corei7_, NAME); \
+ if (check_sse42() && check_popcnt()) { \
+ return JOIN(corei7_, NAME); \
} \
- else if (check_ssse3()) { \
- fat_dispatch_ ## NAME = &JOIN(core2_, NAME); \
- } else { \
- /* anything else is fail */ \
- fat_dispatch_ ## NAME = &JOIN(error_, NAME); \
+ if (check_ssse3()) { \
+ return JOIN(core2_, NAME); \
} \
-
-
-
-/* the rest of the function is completed in the CONNECT_ARGS_1 macro. */
-
-
+ /* anything else is fail */ \
+ return JOIN(error_, NAME); \
+ } \
+ \
+ /* function */ \
+ HS_PUBLIC_API \
+ RTYPE NAME(__VA_ARGS__) __attribute__((ifunc("resolve_" #NAME)))
#elif defined(ARCH_AARCH64)
#include "util/arch/arm/cpuid_inline.h"
return (RTYPE)HS_ARCH_ERROR; \
} \
\
- /* dispatch routing pointer for this function */ \
- /* initially point it at the resolve function */ \
- static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__); \
- static RTYPE (* JOIN(fat_dispatch_, NAME))(__VA_ARGS__) = \
- &JOIN(resolve_, NAME); \
- \
/* resolver */ \
- static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__) { \
+ static RTYPE (*JOIN(resolve_, NAME)(void))(__VA_ARGS__) { \
if (check_sve2()) { \
- fat_dispatch_ ## NAME = &JOIN(sve2_, NAME); \
+ return JOIN(sve2_, NAME); \
} \
- else if (check_sve()) { \
- fat_dispatch_ ## NAME = &JOIN(sve_, NAME); \
+ if (check_sve()) { \
+ return JOIN(sve_, NAME); \
} \
- else if (check_neon()) { \
- fat_dispatch_ ## NAME = &JOIN(neon_, NAME); \
- } else { \
- /* anything else is fail */ \
- fat_dispatch_ ## NAME = &JOIN(error_, NAME); \
+ if (check_neon()) { \
+ return JOIN(neon_, NAME); \
} \
-
-
-/* the rest of the function is completed in the CONNECT_ARGS_1 macro. */
-
-
-#endif
-
-
-#define CONNECT_ARGS_1(RTYPE, NAME, ...) \
- return (*fat_dispatch_ ## NAME)(__VA_ARGS__); \
+ /* anything else is fail */ \
+ return JOIN(error_, NAME); \
} \
-
-
-#define CONNECT_DISPATCH_2(RTYPE, NAME, ...) \
- /* new function */ \
+ \
+ /* function */ \
HS_PUBLIC_API \
- RTYPE NAME(__VA_ARGS__) { \
-
-
-#define CONNECT_ARGS_3(RTYPE, NAME, ...) \
- return (*fat_dispatch_ ## NAME)(__VA_ARGS__); \
- } \
+ RTYPE NAME(__VA_ARGS__) __attribute__((ifunc("resolve_" #NAME)))
+#endif
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
-
-/* this gets a bit ugly to compose the static redirect functions,
- * as we necessarily need first the typed arg list and then just the arg
- * names, twice in a row, to define the redirect function and the
- * dispatch function call */
-
CREATE_DISPATCH(hs_error_t, hs_scan, const hs_database_t *db, const char *data,
unsigned length, unsigned flags, hs_scratch_t *scratch,
match_event_handler onEvent, void *userCtx);
-CONNECT_ARGS_1(hs_error_t, hs_scan, db, data, length, flags, scratch, onEvent, userCtx);
-CONNECT_DISPATCH_2(hs_error_t, hs_scan, const hs_database_t *db, const char *data,
- unsigned length, unsigned flags, hs_scratch_t *scratch,
- match_event_handler onEvent, void *userCtx);
-CONNECT_ARGS_3(hs_error_t, hs_scan, db, data, length, flags, scratch, onEvent, userCtx);
CREATE_DISPATCH(hs_error_t, hs_stream_size, const hs_database_t *database,
size_t *stream_size);
-CONNECT_ARGS_1(hs_error_t, hs_stream_size, database, stream_size);
-CONNECT_DISPATCH_2(hs_error_t, hs_stream_size, const hs_database_t *database,
- size_t *stream_size);
-CONNECT_ARGS_3(hs_error_t, hs_stream_size, database, stream_size);
CREATE_DISPATCH(hs_error_t, hs_database_size, const hs_database_t *db,
size_t *size);
-CONNECT_ARGS_1(hs_error_t, hs_database_size, db, size);
-CONNECT_DISPATCH_2(hs_error_t, hs_database_size, const hs_database_t *db,
- size_t *size);
-CONNECT_ARGS_3(hs_error_t, hs_database_size, db, size);
-
CREATE_DISPATCH(hs_error_t, dbIsValid, const hs_database_t *db);
-CONNECT_ARGS_1(hs_error_t, dbIsValid, db);
-CONNECT_DISPATCH_2(hs_error_t, dbIsValid, const hs_database_t *db);
-CONNECT_ARGS_3(hs_error_t, dbIsValid, db);
-
CREATE_DISPATCH(hs_error_t, hs_free_database, hs_database_t *db);
-CONNECT_ARGS_1(hs_error_t, hs_free_database, db);
-CONNECT_DISPATCH_2(hs_error_t, hs_free_database, hs_database_t *db);
-CONNECT_ARGS_3(hs_error_t, hs_free_database, db);
CREATE_DISPATCH(hs_error_t, hs_open_stream, const hs_database_t *db,
unsigned int flags, hs_stream_t **stream);
-CONNECT_ARGS_1(hs_error_t, hs_open_stream, db, flags, stream);
-CONNECT_DISPATCH_2(hs_error_t, hs_open_stream, const hs_database_t *db,
- unsigned int flags, hs_stream_t **stream);
-CONNECT_ARGS_3(hs_error_t, hs_open_stream, db, flags, stream);
CREATE_DISPATCH(hs_error_t, hs_scan_stream, hs_stream_t *id, const char *data,
unsigned int length, unsigned int flags, hs_scratch_t *scratch,
match_event_handler onEvent, void *ctxt);
-CONNECT_ARGS_1(hs_error_t, hs_scan_stream, id, data, length, flags, scratch, onEvent, ctxt);
-CONNECT_DISPATCH_2(hs_error_t, hs_scan_stream, hs_stream_t *id, const char *data,
- unsigned int length, unsigned int flags, hs_scratch_t *scratch,
- match_event_handler onEvent, void *ctxt);
-CONNECT_ARGS_3(hs_error_t, hs_scan_stream, id, data, length, flags, scratch, onEvent, ctxt);
CREATE_DISPATCH(hs_error_t, hs_close_stream, hs_stream_t *id,
hs_scratch_t *scratch, match_event_handler onEvent, void *ctxt);
-CONNECT_ARGS_1(hs_error_t, hs_close_stream, id, scratch, onEvent, ctxt);
-CONNECT_DISPATCH_2(hs_error_t, hs_close_stream, hs_stream_t *id,
- hs_scratch_t *scratch, match_event_handler onEvent, void *ctxt);
-CONNECT_ARGS_3(hs_error_t, hs_close_stream, id, scratch, onEvent, ctxt);
CREATE_DISPATCH(hs_error_t, hs_scan_vector, const hs_database_t *db,
const char *const *data, const unsigned int *length,
unsigned int count, unsigned int flags, hs_scratch_t *scratch,
match_event_handler onevent, void *context);
-CONNECT_ARGS_1(hs_error_t, hs_scan_vector, db, data, length, count, flags, scratch, onevent, context);
-CONNECT_DISPATCH_2(hs_error_t, hs_scan_vector, const hs_database_t *db,
- const char *const *data, const unsigned int *length,
- unsigned int count, unsigned int flags, hs_scratch_t *scratch,
- match_event_handler onevent, void *context);
-CONNECT_ARGS_3(hs_error_t, hs_scan_vector, db, data, length, count, flags, scratch, onevent, context);
CREATE_DISPATCH(hs_error_t, hs_database_info, const hs_database_t *db, char **info);
-CONNECT_ARGS_1(hs_error_t, hs_database_info, db, info);
-CONNECT_DISPATCH_2(hs_error_t, hs_database_info, const hs_database_t *db, char **info);
-CONNECT_ARGS_3(hs_error_t, hs_database_info, db, info);
CREATE_DISPATCH(hs_error_t, hs_copy_stream, hs_stream_t **to_id,
const hs_stream_t *from_id);
-CONNECT_ARGS_1(hs_error_t, hs_copy_stream, to_id, from_id);
-CONNECT_DISPATCH_2(hs_error_t, hs_copy_stream, hs_stream_t **to_id,
- const hs_stream_t *from_id);
-CONNECT_ARGS_3(hs_error_t, hs_copy_stream, to_id, from_id);
CREATE_DISPATCH(hs_error_t, hs_reset_stream, hs_stream_t *id,
unsigned int flags, hs_scratch_t *scratch,
match_event_handler onEvent, void *context);
-CONNECT_ARGS_1(hs_error_t, hs_reset_stream, id, flags, scratch, onEvent, context);
-CONNECT_DISPATCH_2(hs_error_t, hs_reset_stream, hs_stream_t *id,
- unsigned int flags, hs_scratch_t *scratch,
- match_event_handler onEvent, void *context);
-CONNECT_ARGS_3(hs_error_t, hs_reset_stream, id, flags, scratch, onEvent, context);
CREATE_DISPATCH(hs_error_t, hs_reset_and_copy_stream, hs_stream_t *to_id,
const hs_stream_t *from_id, hs_scratch_t *scratch,
match_event_handler onEvent, void *context);
-CONNECT_ARGS_1(hs_error_t, hs_reset_and_copy_stream, to_id, from_id, scratch, onEvent, context);
-CONNECT_DISPATCH_2(hs_error_t, hs_reset_and_copy_stream, hs_stream_t *to_id,
- const hs_stream_t *from_id, hs_scratch_t *scratch,
- match_event_handler onEvent, void *context);
-CONNECT_ARGS_3(hs_error_t, hs_reset_and_copy_stream, to_id, from_id, scratch, onEvent, context);
CREATE_DISPATCH(hs_error_t, hs_serialize_database, const hs_database_t *db,
char **bytes, size_t *length);
-CONNECT_ARGS_1(hs_error_t, hs_serialize_database, db, bytes, length);
-CONNECT_DISPATCH_2(hs_error_t, hs_serialize_database, const hs_database_t *db,
- char **bytes, size_t *length);
-CONNECT_ARGS_3(hs_error_t, hs_serialize_database, db, bytes, length);
CREATE_DISPATCH(hs_error_t, hs_deserialize_database, const char *bytes,
const size_t length, hs_database_t **db);
-CONNECT_ARGS_1(hs_error_t, hs_deserialize_database, bytes, length, db);
-CONNECT_DISPATCH_2(hs_error_t, hs_deserialize_database, const char *bytes,
- const size_t length, hs_database_t **db);
-CONNECT_ARGS_3(hs_error_t, hs_deserialize_database, bytes, length, db);
CREATE_DISPATCH(hs_error_t, hs_deserialize_database_at, const char *bytes,
const size_t length, hs_database_t *db);
-CONNECT_ARGS_1(hs_error_t, hs_deserialize_database_at, bytes, length, db);
-CONNECT_DISPATCH_2(hs_error_t, hs_deserialize_database_at, const char *bytes,
- const size_t length, hs_database_t *db);
-CONNECT_ARGS_3(hs_error_t, hs_deserialize_database_at, bytes, length, db);
CREATE_DISPATCH(hs_error_t, hs_serialized_database_info, const char *bytes,
size_t length, char **info);
-CONNECT_ARGS_1(hs_error_t, hs_serialized_database_info, bytes, length, info);
-CONNECT_DISPATCH_2(hs_error_t, hs_serialized_database_info, const char *bytes,
- size_t length, char **info);
-CONNECT_ARGS_3(hs_error_t, hs_serialized_database_info, bytes, length, info);
CREATE_DISPATCH(hs_error_t, hs_serialized_database_size, const char *bytes,
const size_t length, size_t *deserialized_size);
-CONNECT_ARGS_1(hs_error_t, hs_serialized_database_size, bytes, length, deserialized_size);
-CONNECT_DISPATCH_2(hs_error_t, hs_serialized_database_size, const char *bytes,
- const size_t length, size_t *deserialized_size);
-CONNECT_ARGS_3(hs_error_t, hs_serialized_database_size, bytes, length, deserialized_size);
CREATE_DISPATCH(hs_error_t, hs_compress_stream, const hs_stream_t *stream,
char *buf, size_t buf_space, size_t *used_space);
-CONNECT_ARGS_1(hs_error_t, hs_compress_stream, stream,
- buf, buf_space, used_space);
-CONNECT_DISPATCH_2(hs_error_t, hs_compress_stream, const hs_stream_t *stream,
- char *buf, size_t buf_space, size_t *used_space);
-CONNECT_ARGS_3(hs_error_t, hs_compress_stream, stream,
- buf, buf_space, used_space);
CREATE_DISPATCH(hs_error_t, hs_expand_stream, const hs_database_t *db,
hs_stream_t **stream, const char *buf,size_t buf_size);
-CONNECT_ARGS_1(hs_error_t, hs_expand_stream, db, stream, buf,buf_size);
-CONNECT_DISPATCH_2(hs_error_t, hs_expand_stream, const hs_database_t *db,
- hs_stream_t **stream, const char *buf,size_t buf_size);
-CONNECT_ARGS_3(hs_error_t, hs_expand_stream, db, stream, buf,buf_size);
CREATE_DISPATCH(hs_error_t, hs_reset_and_expand_stream, hs_stream_t *to_stream,
const char *buf, size_t buf_size, hs_scratch_t *scratch,
match_event_handler onEvent, void *context);
-CONNECT_ARGS_1(hs_error_t, hs_reset_and_expand_stream, to_stream,
- buf, buf_size, scratch, onEvent, context);
-CONNECT_DISPATCH_2(hs_error_t, hs_reset_and_expand_stream, hs_stream_t *to_stream,
- const char *buf, size_t buf_size, hs_scratch_t *scratch,
- match_event_handler onEvent, void *context);
-CONNECT_ARGS_3(hs_error_t, hs_reset_and_expand_stream, to_stream,
- buf, buf_size, scratch, onEvent, context);
/** INTERNALS **/
CREATE_DISPATCH(u32, Crc32c_ComputeBuf, u32 inCrc32, const void *buf, size_t bufLen);
-CONNECT_ARGS_1(u32, Crc32c_ComputeBuf, inCrc32, buf, bufLen);
-CONNECT_DISPATCH_2(u32, Crc32c_ComputeBuf, u32 inCrc32, const void *buf, size_t bufLen);
-CONNECT_ARGS_3(u32, Crc32c_ComputeBuf, inCrc32, buf, bufLen);
#pragma GCC diagnostic pop
#pragma GCC diagnostic pop
-
projects / thirdparty / vectorscan.git / commitdiff
