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ext/ffi/php_ffi.h
280 строк
11 KB
Gina Peter Banyard
ext/ffi: Add const specifiers
31 мар 2025, 19:03
31 мар 2025, 19:03
f7a7e1c
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/* +----------------------------------------------------------------------+ | Copyright (c) The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 3.01 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | https://www.php.net/license/3_01.txt | | If you did not receive a copy of the PHP license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@php.net so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Author: Dmitry Stogov <dmitry@zend.com> | +----------------------------------------------------------------------+ */ #ifndef PHP_FFI_H #define PHP_FFI_H extern zend_module_entry ffi_module_entry; #define phpext_ffi_ptr &ffi_module_entry typedef enum _zend_ffi_api_restriction { ZEND_FFI_DISABLED = 0, /* completely disabled */ ZEND_FFI_ENABLED = 1, /* enabled everywhere */ ZEND_FFI_PRELOAD = 2, /* enabled only in preloaded scripts and CLI */ } zend_ffi_api_restriction; typedef struct _zend_ffi_type zend_ffi_type; ZEND_BEGIN_MODULE_GLOBALS(ffi) zend_ffi_api_restriction restriction; bool is_cli; /* predefined ffi_types */ HashTable types; /* preloading */ char *preload; HashTable *scopes; /* list of preloaded scopes */ /* callbacks */ HashTable *callbacks; /* weak type references */ HashTable *weak_types; /* ffi_parser */ JMP_BUF bailout; unsigned const char *buf; unsigned const char *end; unsigned const char *pos; unsigned const char *text; int line; HashTable *symbols; HashTable *tags; bool allow_vla; bool attribute_parsing; bool persistent; uint32_t default_type_attr; ZEND_END_MODULE_GLOBALS(ffi) ZEND_EXTERN_MODULE_GLOBALS(ffi) #ifdef PHP_WIN32 # define PHP_FFI_API __declspec(dllexport) #elif defined(__GNUC__) && __GNUC__ >= 4 # define PHP_FFI_API __attribute__ ((visibility("default"))) #else # define PHP_FFI_API #endif #define FFI_G(v) ZEND_MODULE_GLOBALS_ACCESSOR(ffi, v) #define ZEND_FFI_DCL_VOID (1<<0) #define ZEND_FFI_DCL_CHAR (1<<1) #define ZEND_FFI_DCL_SHORT (1<<2) #define ZEND_FFI_DCL_INT (1<<3) #define ZEND_FFI_DCL_LONG (1<<4) #define ZEND_FFI_DCL_LONG_LONG (1<<5) #define ZEND_FFI_DCL_FLOAT (1<<6) #define ZEND_FFI_DCL_DOUBLE (1<<7) #define ZEND_FFI_DCL_SIGNED (1<<8) #define ZEND_FFI_DCL_UNSIGNED (1<<9) #define ZEND_FFI_DCL_BOOL (1<<10) #define ZEND_FFI_DCL_COMPLEX (1<<11) #define ZEND_FFI_DCL_STRUCT (1<<12) #define ZEND_FFI_DCL_UNION (1<<13) #define ZEND_FFI_DCL_ENUM (1<<14) #define ZEND_FFI_DCL_TYPEDEF_NAME (1<<15) #define ZEND_FFI_DCL_TYPE_SPECIFIERS \ (ZEND_FFI_DCL_VOID|ZEND_FFI_DCL_CHAR|ZEND_FFI_DCL_SHORT \ |ZEND_FFI_DCL_INT|ZEND_FFI_DCL_LONG|ZEND_FFI_DCL_LONG_LONG \ |ZEND_FFI_DCL_FLOAT|ZEND_FFI_DCL_DOUBLE|ZEND_FFI_DCL_SIGNED \ |ZEND_FFI_DCL_UNSIGNED|ZEND_FFI_DCL_BOOL|ZEND_FFI_DCL_COMPLEX \ |ZEND_FFI_DCL_STRUCT|ZEND_FFI_DCL_UNION|ZEND_FFI_DCL_ENUM \ |ZEND_FFI_DCL_TYPEDEF_NAME) #define ZEND_FFI_DCL_TYPEDEF (1<<16) #define ZEND_FFI_DCL_EXTERN (1<<17) #define ZEND_FFI_DCL_STATIC (1<<18) #define ZEND_FFI_DCL_AUTO (1<<19) #define ZEND_FFI_DCL_REGISTER (1<<20) #define ZEND_FFI_DCL_STORAGE_CLASS \ (ZEND_FFI_DCL_TYPEDEF|ZEND_FFI_DCL_EXTERN|ZEND_FFI_DCL_STATIC \ |ZEND_FFI_DCL_AUTO|ZEND_FFI_DCL_REGISTER) #define ZEND_FFI_DCL_CONST (1<<21) #define ZEND_FFI_DCL_RESTRICT (1<<22) #define ZEND_FFI_DCL_VOLATILE (1<<23) #define ZEND_FFI_DCL_ATOMIC (1<<24) #define ZEND_FFI_DCL_TYPE_QUALIFIERS \ (ZEND_FFI_DCL_CONST|ZEND_FFI_DCL_RESTRICT|ZEND_FFI_DCL_VOLATILE \ |ZEND_FFI_DCL_ATOMIC) #define ZEND_FFI_DCL_INLINE (1<<25) #define ZEND_FFI_DCL_NO_RETURN (1<<26) #define ZEND_FFI_ABI_DEFAULT 0 #define ZEND_FFI_ABI_CDECL 1 // FFI_DEFAULT_ABI #define ZEND_FFI_ABI_FASTCALL 2 // FFI_FASTCALL #define ZEND_FFI_ABI_THISCALL 3 // FFI_THISCALL #define ZEND_FFI_ABI_STDCALL 4 // FFI_STDCALL #define ZEND_FFI_ABI_PASCAL 5 // FFI_PASCAL #define ZEND_FFI_ABI_REGISTER 6 // FFI_REGISTER #define ZEND_FFI_ABI_MS 7 // FFI_MS_CDECL #define ZEND_FFI_ABI_SYSV 8 // FFI_SYSV #define ZEND_FFI_ABI_VECTORCALL 9 // FFI_VECTORCALL #define ZEND_FFI_ATTR_CONST (1<<0) #define ZEND_FFI_ATTR_INCOMPLETE_TAG (1<<1) #define ZEND_FFI_ATTR_VARIADIC (1<<2) #define ZEND_FFI_ATTR_INCOMPLETE_ARRAY (1<<3) #define ZEND_FFI_ATTR_VLA (1<<4) #define ZEND_FFI_ATTR_UNION (1<<5) #define ZEND_FFI_ATTR_PACKED (1<<6) #define ZEND_FFI_ATTR_MS_STRUCT (1<<7) #define ZEND_FFI_ATTR_GCC_STRUCT (1<<8) #define ZEND_FFI_ATTR_PERSISTENT (1<<9) #define ZEND_FFI_ATTR_STORED (1<<10) #define ZEND_FFI_STRUCT_ATTRS \ (ZEND_FFI_ATTR_UNION|ZEND_FFI_ATTR_PACKED|ZEND_FFI_ATTR_MS_STRUCT \ |ZEND_FFI_ATTR_GCC_STRUCT) #define ZEND_FFI_ENUM_ATTRS \ (ZEND_FFI_ATTR_PACKED) #define ZEND_FFI_ARRAY_ATTRS \ (ZEND_FFI_ATTR_CONST|ZEND_FFI_ATTR_VLA|ZEND_FFI_ATTR_INCOMPLETE_ARRAY) #define ZEND_FFI_FUNC_ATTRS \ (ZEND_FFI_ATTR_VARIADIC) #define ZEND_FFI_POINTER_ATTRS \ (ZEND_FFI_ATTR_CONST) typedef struct _zend_ffi_dcl { uint32_t flags; uint32_t align; uint16_t attr; uint16_t abi; zend_ffi_type *type; } zend_ffi_dcl; #define ZEND_FFI_ATTR_INIT {0, 0, 0, 0, NULL} typedef enum _zend_ffi_val_kind { ZEND_FFI_VAL_EMPTY, ZEND_FFI_VAL_ERROR, ZEND_FFI_VAL_INT32, ZEND_FFI_VAL_INT64, ZEND_FFI_VAL_UINT32, ZEND_FFI_VAL_UINT64, ZEND_FFI_VAL_FLOAT, ZEND_FFI_VAL_DOUBLE, ZEND_FFI_VAL_LONG_DOUBLE, ZEND_FFI_VAL_CHAR, ZEND_FFI_VAL_STRING, ZEND_FFI_VAL_NAME, /* attribute value */ } zend_ffi_val_kind; #ifdef HAVE_LONG_DOUBLE typedef long double zend_ffi_double; #else typedef double zend_ffi_double; #endif typedef struct _zend_ffi_val { zend_ffi_val_kind kind; union { uint64_t u64; int64_t i64; zend_ffi_double d; signed char ch; struct { const char *str; size_t len; }; }; } zend_ffi_val; zend_result zend_ffi_parse_decl(const char *str, size_t len); zend_result zend_ffi_parse_type(const char *str, size_t len, zend_ffi_dcl *dcl); void zend_ffi_cleanup_dcl(zend_ffi_dcl *dcl); /* parser callbacks */ void ZEND_NORETURN zend_ffi_parser_error(const char *msg, ...); bool zend_ffi_is_typedef_name(const char *name, size_t name_len); void zend_ffi_resolve_typedef(const char *name, size_t name_len, zend_ffi_dcl *dcl); void zend_ffi_resolve_const(const char *name, size_t name_len, zend_ffi_val *val); void zend_ffi_declare_tag(const char *name, size_t name_len, zend_ffi_dcl *dcl, bool incomplete); void zend_ffi_make_enum_type(zend_ffi_dcl *dcl); void zend_ffi_add_enum_val(zend_ffi_dcl *enum_dcl, const char *name, size_t name_len, const zend_ffi_val *val, int64_t *min, int64_t *max, int64_t *last); void zend_ffi_make_struct_type(zend_ffi_dcl *dcl); void zend_ffi_add_field(zend_ffi_dcl *struct_dcl, const char *name, size_t name_len, zend_ffi_dcl *field_dcl); void zend_ffi_add_anonymous_field(zend_ffi_dcl *struct_dcl, zend_ffi_dcl *field_dcl); void zend_ffi_add_bit_field(zend_ffi_dcl *struct_dcl, const char *name, size_t name_len, zend_ffi_dcl *field_dcl, const zend_ffi_val *bits); void zend_ffi_adjust_struct_size(zend_ffi_dcl *dcl); void zend_ffi_make_pointer_type(zend_ffi_dcl *dcl); void zend_ffi_make_array_type(zend_ffi_dcl *dcl, const zend_ffi_val *len); void zend_ffi_make_func_type(zend_ffi_dcl *dcl, HashTable *args, zend_ffi_dcl *nested_dcl); void zend_ffi_add_arg(HashTable **args, const char *name, size_t name_len, zend_ffi_dcl *arg_dcl); void zend_ffi_declare(const char *name, size_t name_len, zend_ffi_dcl *dcl); void zend_ffi_add_attribute(zend_ffi_dcl *dcl, const char *name, size_t name_len); void zend_ffi_add_attribute_value(zend_ffi_dcl *dcl, const char *name, size_t name_len, int n, const zend_ffi_val *val); void zend_ffi_add_msvc_attribute_value(zend_ffi_dcl *dcl, const char *name, size_t name_len, const zend_ffi_val *val); void zend_ffi_set_abi(zend_ffi_dcl *dcl, uint16_t abi); void zend_ffi_nested_declaration(zend_ffi_dcl *dcl, zend_ffi_dcl *nested_dcl); void zend_ffi_align_as_type(zend_ffi_dcl *dcl, zend_ffi_dcl *align_dcl); void zend_ffi_align_as_val(zend_ffi_dcl *dcl, const zend_ffi_val *align_val); void zend_ffi_validate_type_name(zend_ffi_dcl *dcl); void zend_ffi_expr_conditional(zend_ffi_val *val, const zend_ffi_val *op2, const zend_ffi_val *op3); void zend_ffi_expr_bool_or(zend_ffi_val *val, zend_ffi_val *op2); void zend_ffi_expr_bool_and(zend_ffi_val *val, zend_ffi_val *op2); void zend_ffi_expr_bw_or(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_bw_xor(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_bw_and(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_is_equal(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_is_not_equal(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_is_less(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_is_greater(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_is_less_or_equal(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_is_greater_or_equal(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_shift_left(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_shift_right(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_add(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_sub(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_mul(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_div(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_mod(zend_ffi_val *val, const zend_ffi_val *op2); void zend_ffi_expr_cast(zend_ffi_val *val, zend_ffi_dcl *dcl); void zend_ffi_expr_plus(zend_ffi_val *val); void zend_ffi_expr_neg(zend_ffi_val *val); void zend_ffi_expr_bw_not(zend_ffi_val *val); void zend_ffi_expr_bool_not(zend_ffi_val *val); void zend_ffi_expr_sizeof_val(zend_ffi_val *val); void zend_ffi_expr_sizeof_type(zend_ffi_val *val, zend_ffi_dcl *dcl); void zend_ffi_expr_alignof_val(zend_ffi_val *val); void zend_ffi_expr_alignof_type(zend_ffi_val *val, zend_ffi_dcl *dcl); static zend_always_inline void zend_ffi_val_error(zend_ffi_val *val) /* {{{ */ { val->kind = ZEND_FFI_VAL_ERROR; } /* }}} */ void zend_ffi_val_number(zend_ffi_val *val, int base, const char *str, size_t str_len); void zend_ffi_val_float_number(zend_ffi_val *val, const char *str, size_t str_len); void zend_ffi_val_string(zend_ffi_val *val, const char *str, size_t str_len); void zend_ffi_val_character(zend_ffi_val *val, const char *str, size_t str_len); #endif /* PHP_FFI_H */