1 /*******************************************************************************
2 Copyright (c) 2018, Michael Wallner <mike@php.net>.
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *******************************************************************************/
29 # include "php_config.h"
40 HashTable psi_builtins
;
42 static bool has_include(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
43 static bool has_include_next(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
44 static bool has_feature(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
45 static bool builtin_constant_p(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
46 static bool COUNTER__(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
48 static inline struct psi_plist
*builtin_sig(token_t typ
, ...)
50 struct psi_plist
*sig
;
54 if (typ
== (token_t
) - 1) {
58 sig
= psi_plist_init((psi_plist_dtor
) psi_token_free
);
62 struct psi_token
*arg
;
64 arg
= psi_token_init(typ
, &a
, 1, 0, 0, zend_empty_string
);
65 sig
= psi_plist_add(sig
, &arg
);
66 typ
= va_arg(args
, token_t
);
73 static void free_builtin(zval
*p
)
75 struct psi_builtin
*b
= Z_PTR_P(p
);
78 zend_string_release(b
->name
);
79 psi_cpp_macro_decl_free(&b
->decl
);
84 PHP_MINIT_FUNCTION(psi_builtin
);
85 PHP_MINIT_FUNCTION(psi_builtin
)
87 #define PSI_BUILTIN(builtin, ...) do { \
88 struct psi_builtin entry; \
89 struct psi_plist *sig = builtin_sig(__VA_ARGS__, 0); \
90 struct psi_cpp_macro_decl *decl = psi_cpp_macro_decl_init(sig, NULL, NULL); \
91 decl->token = psi_token_init(PSI_T_NAME, "__" #builtin, sizeof("__" #builtin)-1, \
92 0, 0, zend_empty_string); \
93 entry.name = zend_string_copy(decl->token->text); \
94 entry.func = &builtin; \
96 zend_hash_add_mem(&psi_builtins, entry.name, &entry, sizeof(entry)); \
99 zend_hash_init(&psi_builtins
, 0, NULL
, free_builtin
, 1);
100 PSI_BUILTIN(has_include
, PSI_T_CPP_HEADER
);
101 PSI_BUILTIN(has_include_next
, PSI_T_CPP_HEADER
);
102 PSI_BUILTIN(has_feature
, PSI_T_NAME
);
103 PSI_BUILTIN(builtin_constant_p
, PSI_T_NAME
);
105 PSI_BUILTIN(COUNTER__
, -1);
110 PHP_MSHUTDOWN_FUNCTION(psi_builtin
);
111 PHP_MSHUTDOWN_FUNCTION(psi_builtin
)
113 zend_hash_destroy(&psi_builtins
);
117 bool psi_builtin_exists(zend_string
*name
)
119 return zend_hash_exists(&psi_builtins
, name
);
122 struct psi_builtin
*psi_builtin_get(zend_string
*name
)
124 return zend_hash_find_ptr(&psi_builtins
, name
);
127 static bool has_include(struct psi_cpp
*cpp
, struct psi_token
*target
,
128 struct psi_plist
**args
, struct psi_plist
**res
)
130 struct psi_plist
*arg
= args
[0];
131 struct psi_token
*tok
;
133 switch (psi_plist_count(arg
)) {
135 if (psi_plist_get(arg
, 0, &tok
)) {
136 const char *cpp_search
= cpp
->search
;
137 bool has
= psi_cpp_has_include(cpp
, tok
, 0, NULL
);
138 cpp
->search
= cpp_search
;
143 cpp
->parser
->error(PSI_DATA(cpp
->parser
), target
, PSI_WARNING
,
144 "Erroneous usage of builtin __%s", __FUNCTION__
);
149 static bool has_include_next(struct psi_cpp
*cpp
, struct psi_token
*target
,
150 struct psi_plist
**args
, struct psi_plist
**res
)
152 struct psi_plist
*arg
= args
[0];
153 struct psi_token
*tok
;
155 switch (psi_plist_count(arg
)) {
157 if (psi_plist_get(arg
, 0, &tok
)) {
158 const char *cpp_search
= cpp
->search
;
159 bool has
= psi_cpp_has_include(cpp
, tok
, PSI_CPP_INCLUDE_NEXT
, NULL
);
160 cpp
->search
= cpp_search
;
165 cpp
->parser
->error(PSI_DATA(cpp
->parser
), target
, PSI_WARNING
,
166 "Erroneous usage of builtin __%s", __FUNCTION__
);
171 static bool has_feature(struct psi_cpp
*cpp
, struct psi_token
*target
,
172 struct psi_plist
**args
, struct psi_plist
**res_ptr
)
177 static bool builtin_constant_p(struct psi_cpp
*cpp
, struct psi_token
*target
,
178 struct psi_plist
**args
, struct psi_plist
**res_ptr
)
180 /* we want functions, not macros for e.g. htonl() */
184 static bool COUNTER__(struct psi_cpp
*cpp
, struct psi_token
*target
,
185 struct psi_plist
**args
, struct psi_plist
**res
)
187 struct psi_token
*tok
;
189 size_t len
= sprintf(buf
, "%u", cpp
->counter
++);
191 tok
= psi_token_init(PSI_T_NUMBER
, buf
, len
, target
->col
, target
->line
, target
->file
);
192 *res
= psi_plist_init((psi_plist_dtor
) psi_token_free
);
193 *res
= psi_plist_add(*res
, &tok
);
199 #include <libkern/OSByteOrder.h>
200 # define bswap_16(u) _OSSwapInt16(u)
201 # define bswap_32(u) _OSSwapInt32(u)
202 # define bswap_64(u) _OSSwapInt64(u)
203 #elif defined(__FreeBSD__)
204 # include <sys/endian.h>
205 # define bswap_16(u) bswap16(u)
206 # define bswap_32(u) bswap32(u)
207 # define bswap_64(u) bswap64(u)
208 #elif defined(__OpenBSD__)
209 # include <sys/types.h>
210 # define bswap_16(u) swap16(u)
211 # define bswap_32(u) swap32(u)
212 # define bswap_64(u) swap64(u)
213 #elif defined(__NetBSD__)
214 # include <sys/types.h>
215 # include <machine/bswap.h>
216 # define bswap_16(u) bswap16(u)
217 # define bswap_32(u) bswap32(u)
218 # define bswap_64(u) bswap64(u)
220 # include <byteswap.h>
223 uint16_t psi_swap16(uint16_t u
)
228 uint32_t psi_swap32(uint32_t u
)
233 uint64_t psi_swap64(uint64_t u
)