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/*
+----------------------------------------------------------------------+
| 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Dmitry Stogov <[email protected]> |
+----------------------------------------------------------------------+
*/
#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 */
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;
zend_bool allow_vla;
zend_bool attribute_parsing;
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_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;
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, 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, 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 */