1 /*******************************************************************************
2 Copyright (c) 2016, 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 *******************************************************************************/
26 #include "php_psi_stdinc.h"
31 struct psi_decl_struct
* psi_decl_struct_init(const char *name
,
32 struct psi_plist
*args
)
34 struct psi_decl_struct
*s
= calloc(1, sizeof(*s
));
35 s
->name
= strdup(name
);
40 void psi_decl_struct_free(struct psi_decl_struct
**s_ptr
)
43 struct psi_decl_struct
*s
= *s_ptr
;
50 psi_plist_free(s
->args
);
52 if (s
->engine
.type
&& s
->engine
.dtor
) {
53 s
->engine
.dtor(s
->engine
.type
);
60 void psi_decl_struct_dump(int fd
, struct psi_decl_struct
*strct
)
62 dprintf(fd
, "struct %s::(%zu, %zu)", strct
->name
, strct
->align
,
64 if (psi_plist_count(strct
->args
)) {
65 psi_decl_type_dump_args_with_layout(fd
, strct
->args
, 0);
71 struct psi_decl_arg
*psi_decl_struct_get_arg(struct psi_decl_struct
*s
,
72 struct psi_decl_var
*var
)
75 return psi_decl_arg_get_by_var(var
, s
->args
, NULL
);
81 bool psi_decl_struct_validate(struct psi_data
*data
, struct psi_decl_struct
*s
,
82 struct psi_validate_scope
*scope
)
84 size_t i
, pos
, len
, size
, align
;
85 struct psi_decl_arg
*darg
, *prev_arg
;
90 if (psi_validate_scope_has_struct(scope
, s
->name
)) {
94 if (!s
->size
&& !psi_plist_count(s
->args
)) {
98 psi_validate_scope_add_struct(scope
, s
->name
, s
);
100 for (i
= 0; psi_plist_get(s
->args
, i
, &darg
); ++i
) {
101 darg
->var
->arg
= darg
;
103 if (!psi_decl_arg_validate(data
, darg
, scope
)) {
104 psi_validate_scope_del_struct(scope
, s
->name
);
108 if (darg
->layout
&& darg
->layout
->len
) {
109 pos
= darg
->layout
->pos
;
110 align
= psi_decl_arg_align(darg
, &pos
, &len
);
113 data
->error(data
, darg
->token
, PSI_WARNING
,
114 "Computed zero alignment of %s.%s of type '%s'",
115 len
, s
->name
, darg
->var
->name
, darg
->type
->name
);
116 psi_validate_scope_del_struct(scope
, s
->name
);
120 if (darg
->layout
->len
!= len
) {
121 data
->error(data
, darg
->token
, PSI_WARNING
,
122 "Computed size %zu of %s.%s does not match"
123 " pre-defined size %zu of type '%s'",
124 len
, s
->name
, darg
->var
->name
, darg
->layout
->len
,
127 if (darg
->layout
->pos
!= pos
) {
128 data
->error(data
, darg
->token
, PSI_WARNING
,
129 "Computed offset %zu of %s.%s does not match"
130 " pre-defined offset %zu",
131 pos
, s
->name
, darg
->var
->name
, darg
->layout
->pos
);
135 if (prev_arg
->layout
&& prev_arg
->layout
->bfw
&& darg
->layout
&& darg
->layout
->bfw
) {
136 struct psi_decl_type
*real
= NULL
;
137 size_t max_bfw
= 8 * psi_decl_type_get_size(prev_arg
->type
, &real
);
139 switch (real
->type
) {
150 data
->error(data
, darg
->token
, PSI_WARNING
,
151 "Unsupported type for bit field: %s", real
->name
);
152 psi_validate_scope_del_struct(scope
, s
->name
);
155 darg
->layout
->bfw
->pos
= prev_arg
->layout
->bfw
->pos
+ prev_arg
->layout
->bfw
->len
;
156 if (max_bfw
>= darg
->layout
->bfw
->pos
+ darg
->layout
->bfw
->len
) {
157 pos
= prev_arg
->layout
->pos
;
159 darg
->layout
->bfw
->pos
= 0;
160 pos
= prev_arg
->layout
->pos
+ prev_arg
->layout
->len
;
163 pos
= prev_arg
->layout
->pos
+ prev_arg
->layout
->len
;
169 align
= psi_decl_arg_align(darg
, &pos
, &len
);
172 if (darg
->layout
->pos
!= pos
) {
173 data
->error(data
, darg
->token
, PSI_WARNING
,
174 "Computed offset %zu of %s.%s does not match"
175 " pre-defined offset %zu",
176 pos
, s
->name
, darg
->var
->name
, darg
->layout
->pos
);
178 darg
->layout
->pos
= pos
;
179 darg
->layout
->len
= len
;
181 darg
->layout
= psi_layout_init(pos
, len
, NULL
);
185 if (align
> s
->align
) {
191 if (psi_plist_count(s
->args
)) {
192 psi_plist_sort(s
->args
, psi_layout_sort_cmp
, NULL
);
193 psi_plist_get(s
->args
, psi_plist_count(s
->args
) - 1, &darg
);
195 size
= darg
->layout
->pos
+ darg
->layout
->len
;
196 if (s
->size
< size
) {
197 s
->size
= psi_align(size
, s
->align
);
206 size_t psi_decl_struct_get_align(struct psi_decl_struct
*s
)
212 s
->align
= psi_decl_type_get_args_align(s
->args
);