057e6f2fa7f9407d16deb16af6843934d05ba396
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 BASE_FILE__(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
47 static bool COUNTER__(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
48 static bool INCLUDE_LEVEL__(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
49 static bool TIMESTAMP__(struct psi_cpp
*cpp
, struct psi_token
*target
, struct psi_plist
**args
, struct psi_plist
**res
);
51 static inline struct psi_plist
*builtin_sig(token_t typ
, ...)
53 struct psi_plist
*sig
;
57 if (typ
== (token_t
) - 1) {
61 sig
= psi_plist_init((psi_plist_dtor
) psi_token_free
);
65 struct psi_token
*arg
;
67 arg
= psi_token_init(typ
, &a
, 1, 0, 0, zend_empty_string
);
68 sig
= psi_plist_add(sig
, &arg
);
69 typ
= va_arg(args
, token_t
);
76 static void free_builtin(zval
*p
)
78 struct psi_builtin
*b
= Z_PTR_P(p
);
81 zend_string_release(b
->name
);
82 psi_cpp_macro_decl_free(&b
->decl
);
87 PHP_MINIT_FUNCTION(psi_builtin
);
88 PHP_MINIT_FUNCTION(psi_builtin
)
90 #define PSI_BUILTIN(builtin, ...) do { \
91 struct psi_builtin entry; \
92 struct psi_plist *sig = builtin_sig(__VA_ARGS__, 0); \
93 struct psi_cpp_macro_decl *decl = psi_cpp_macro_decl_init(sig, NULL, NULL); \
94 decl->token = psi_token_init(PSI_T_NAME, "__" #builtin, sizeof("__" #builtin)-1, \
95 0, 0, zend_empty_string); \
96 entry.name = zend_string_copy(decl->token->text); \
97 entry.func = &builtin; \
99 zend_hash_add_mem(&psi_builtins, entry.name, &entry, sizeof(entry)); \
102 zend_hash_init(&psi_builtins
, 0, NULL
, free_builtin
, 1);
103 PSI_BUILTIN(has_include
, PSI_T_CPP_HEADER
);
104 PSI_BUILTIN(has_include_next
, PSI_T_CPP_HEADER
);
105 PSI_BUILTIN(has_feature
, PSI_T_NAME
);
106 PSI_BUILTIN(builtin_constant_p
, PSI_T_NAME
);
108 PSI_BUILTIN(BASE_FILE__
, -1);
109 PSI_BUILTIN(COUNTER__
, -1);
110 PSI_BUILTIN(INCLUDE_LEVEL__
, -1);
111 PSI_BUILTIN(TIMESTAMP__
, -1);
116 PHP_MSHUTDOWN_FUNCTION(psi_builtin
);
117 PHP_MSHUTDOWN_FUNCTION(psi_builtin
)
119 zend_hash_destroy(&psi_builtins
);
123 bool psi_builtin_exists(zend_string
*name
)
125 return zend_hash_exists(&psi_builtins
, name
);
128 struct psi_builtin
*psi_builtin_get(zend_string
*name
)
130 return zend_hash_find_ptr(&psi_builtins
, name
);
133 static bool has_include(struct psi_cpp
*cpp
, struct psi_token
*target
,
134 struct psi_plist
**args
, struct psi_plist
**res
)
136 struct psi_plist
*arg
= args
[0];
137 struct psi_token
*tok
;
139 switch (psi_plist_count(arg
)) {
141 if (psi_plist_get(arg
, 0, &tok
)) {
142 const char *cpp_search
= cpp
->search
;
143 bool has
= psi_cpp_has_include(cpp
, tok
, 0, NULL
);
144 cpp
->search
= cpp_search
;
149 cpp
->parser
->error(PSI_DATA(cpp
->parser
), target
, PSI_WARNING
,
150 "Erroneous usage of builtin __%s", __FUNCTION__
);
155 static bool has_include_next(struct psi_cpp
*cpp
, struct psi_token
*target
,
156 struct psi_plist
**args
, struct psi_plist
**res
)
158 struct psi_plist
*arg
= args
[0];
159 struct psi_token
*tok
;
161 switch (psi_plist_count(arg
)) {
163 if (psi_plist_get(arg
, 0, &tok
)) {
164 const char *cpp_search
= cpp
->search
;
165 bool has
= psi_cpp_has_include(cpp
, tok
, PSI_CPP_INCLUDE_NEXT
, NULL
);
166 cpp
->search
= cpp_search
;
171 cpp
->parser
->error(PSI_DATA(cpp
->parser
), target
, PSI_WARNING
,
172 "Erroneous usage of builtin __%s", __FUNCTION__
);
177 static bool has_feature(struct psi_cpp
*cpp
, struct psi_token
*target
,
178 struct psi_plist
**args
, struct psi_plist
**res_ptr
)
183 static bool builtin_constant_p(struct psi_cpp
*cpp
, struct psi_token
*target
,
184 struct psi_plist
**args
, struct psi_plist
**res_ptr
)
186 /* we want functions, not macros for e.g. htonl() */
190 #define NEW_TOKEN(typ, str, len) \
191 psi_token_init((typ), (str), (len), (target)->col, (target)->line, (target)->file)
193 #define ADD_TOKEN(tok) do { \
194 struct psi_token *tok__ = tok; \
196 *res = psi_plist_init((psi_plist_dtor) psi_token_free); \
198 *res = psi_plist_add(*res, &tok__); \
201 #define ADD_QUOTED_STRING(buf, len) do { \
202 ADD_TOKEN(NEW_TOKEN(PSI_T_QUOTED_STRING, buf, len)); \
205 #define ADD_QUOTED_ZSTRING(zs) do { \
206 zend_string *zs_ = zs; \
207 ADD_QUOTED_STRING(zs_->val, zs_->len); \
210 #define ADD_UNSIGNED_NUMBER(u) do { \
213 size_t len = sprintf(buf, "%u", u_); \
214 struct psi_token *tok_ = NEW_TOKEN(PSI_T_NUMBER, buf, len); \
215 tok_->flags |= PSI_NUMBER_INT | PSI_NUMBER_U; \
219 static bool BASE_FILE__(struct psi_cpp
*cpp
, struct psi_token
*target
,
220 struct psi_plist
**args
, struct psi_plist
**res
)
222 ADD_QUOTED_ZSTRING(cpp
->parser
->input
->file
);
226 static bool COUNTER__(struct psi_cpp
*cpp
, struct psi_token
*target
,
227 struct psi_plist
**args
, struct psi_plist
**res
)
229 ADD_UNSIGNED_NUMBER(cpp
->counter
++);
233 static bool INCLUDE_LEVEL__(struct psi_cpp
*cpp
, struct psi_token
*target
,
234 struct psi_plist
**args
, struct psi_plist
**res
)
236 ADD_UNSIGNED_NUMBER(cpp
->include_level
);
240 static bool TIMESTAMP__(struct psi_cpp
*cpp
, struct psi_token
*target
,
241 struct psi_plist
**args
, struct psi_plist
**res
)
246 str
= ctime_r(&cpp
->parser
->input
->lmod
, buf
);
248 str
= ctime(&cpp
->parser
->input
->lmod
);
252 ADD_QUOTED_STRING(str
, 24);
258 #include <libkern/OSByteOrder.h>
259 # define bswap_16(u) _OSSwapInt16(u)
260 # define bswap_32(u) _OSSwapInt32(u)
261 # define bswap_64(u) _OSSwapInt64(u)
262 #elif defined(__FreeBSD__)
263 # include <sys/endian.h>
264 # define bswap_16(u) bswap16(u)
265 # define bswap_32(u) bswap32(u)
266 # define bswap_64(u) bswap64(u)
267 #elif defined(__OpenBSD__)
268 # include <sys/types.h>
269 # define bswap_16(u) swap16(u)
270 # define bswap_32(u) swap32(u)
271 # define bswap_64(u) swap64(u)
272 #elif defined(__NetBSD__)
273 # include <sys/types.h>
274 # include <machine/bswap.h>
275 # define bswap_16(u) bswap16(u)
276 # define bswap_32(u) bswap32(u)
277 # define bswap_64(u) bswap64(u)
279 # include <byteswap.h>
282 uint16_t psi_swap16(uint16_t u
)
287 uint32_t psi_swap32(uint32_t u
)
292 uint64_t psi_swap64(uint64_t u
)