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Diffstat (limited to 'ext/ffi/php_ffi.h')
| -rw-r--r-- | ext/ffi/php_ffi.h | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/ext/ffi/php_ffi.h b/ext/ffi/php_ffi.h new file mode 100644 index 0000000000..35b5127875 --- /dev/null +++ b/ext/ffi/php_ffi.h @@ -0,0 +1,277 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 7 | + +----------------------------------------------------------------------+ + | 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: | + | http://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; + zend_bool is_cli; + + /* predefined ffi_types */ + HashTable types; + + /* preloading */ + 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; + zend_bool allow_vla; + zend_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_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_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; + char ch; + struct { + const char *str; + size_t len; + }; + }; +} zend_ffi_val; + +int zend_ffi_parse_decl(const char *str, size_t len); +int zend_ffi_parse_type(const char *str, size_t len, zend_ffi_dcl *dcl); + +/* parser callbacks */ +void ZEND_NORETURN zend_ffi_parser_error(const char *msg, ...); +int 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, zend_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, 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, 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, zend_ffi_val *len); +void zend_ffi_make_func_type(zend_ffi_dcl *dcl, HashTable *args); +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, zend_ffi_val *val); +void zend_ffi_add_msvc_attribute_value(zend_ffi_dcl *dcl, const char *name, size_t name_len, 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, zend_ffi_val *align_val); +void zend_ffi_validate_type_name(zend_ffi_dcl *dcl); + +void zend_ffi_expr_conditional(zend_ffi_val *val, zend_ffi_val *op2, 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, zend_ffi_val *op2); +void zend_ffi_expr_bw_xor(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_bw_and(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_is_equal(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_is_not_equal(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_is_less(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_is_greater(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_is_less_or_equal(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_is_greater_or_equal(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_shift_left(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_shift_right(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_add(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_sub(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_mul(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_div(zend_ffi_val *val, zend_ffi_val *op2); +void zend_ffi_expr_mod(zend_ffi_val *val, 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 */ |