-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#else
-# include "php_config.h"
-#endif
-
+/*******************************************************************************
+ Copyright (c) 2016, Michael Wallner <mike@php.net>.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#include "php_psi_stdinc.h"
+#include "context.h"
+#include "call.h"
#include "php.h"
#ifdef HAVE_LIBFFI
-#include "php_psi.h"
-#include "engine.h"
-
#undef PACKAGE
#undef PACKAGE_BUGREPORT
#undef PACKAGE_NAME
#else
# error "Neither ffi_prep_closure() nor ffi_prep_closure_loc() is available"
#endif
-
}
static void psi_ffi_closure_free(void *c)
#endif
}
-static void psi_ffi_handler(ffi_cif *_sig, void *_result, void **_args, void *_data)
-{
- psi_call(*(zend_execute_data **)_args[0], *(zval **)_args[1], _data);
-}
+static void psi_ffi_prep_va(ffi_cif *base, ffi_cif *signature, size_t argc, size_t va_count,
+ ffi_type **param_types) {
+ ffi_status rc;
-static void psi_ffi_callback(ffi_cif *_sig, void *_result, void **_args, void *_data)
-{
- psi_callback(_data, _result, _sig->nargs, _args);
+#ifdef PSI_HAVE_FFI_PREP_CIF_VAR
+ rc = ffi_prep_cif_var(signature, base->abi, argc, argc + va_count,
+ base->rtype, param_types);
+#else
+ /* FIXME: test in config.m4; assume we can just call anyway */
+ rc = ffi_prep_cif(signature, base->abi, argc + va_count, base->rtype, param_types);
+#endif
+
+ ZEND_ASSERT(FFI_OK == rc);
}
-static inline ffi_type *psi_ffi_decl_arg_type(decl_arg *darg);
+static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg);
struct psi_ffi_context {
ffi_cif signature;
};
struct psi_ffi_call {
+ struct psi_context *context;
+ union {
+ struct {
+ struct psi_impl *impl;
+ struct psi_call_frame *frame;
+ } fn;
+ struct {
+ struct psi_let_exp *let_exp;
+ struct psi_ffi_call *impl_call;
+ } cb;
+ } impl;
void *code;
ffi_closure *closure;
ffi_cif signature;
- void *params[1]; /* [type1, type2, NULL, arg1, arg2] ... */
+ ffi_type *params[1]; /* [type1, type2, ... ] */
};
+static void psi_ffi_handler(ffi_cif *sig, void *result, void **args, void *data)
+{
+ struct psi_ffi_call *call = data;
+
+ psi_context_call(call->context, *(zend_execute_data **)args[0], *(zval **)args[1], call->impl.fn.impl);
+}
+
+static void psi_ffi_callback(ffi_cif *sig, void *result, void **args, void *data)
+{
+ struct psi_ffi_call *call = data, *impl_call = call->impl.cb.impl_call;
+
+ if (impl_call->impl.fn.frame) {
+ struct psi_call_frame_callback cbdata;
+
+ cbdata.cb = call->impl.cb.let_exp;
+ cbdata.argc = sig->nargs;
+ cbdata.argv = args;
+ cbdata.rval = result;
+
+ psi_call_frame_do_callback(impl_call->impl.fn.frame, &cbdata);
+ } else {
+ assert(0);
+ }
+}
+
static inline ffi_abi psi_ffi_abi(const char *convention) {
return FFI_DEFAULT_ABI;
}
-static inline struct psi_ffi_call *psi_ffi_call_alloc(struct psi_context *C, decl *decl) {
+static inline struct psi_ffi_call *psi_ffi_call_alloc(struct psi_context *C, struct psi_decl *decl) {
int rc;
- size_t i, c = decl->args ? decl->args->count : 0;
+ size_t i, c = psi_plist_count(decl->args);
struct psi_ffi_call *call = calloc(1, sizeof(*call) + 2 * c * sizeof(void *));
+ struct psi_decl_arg *arg;
- for (i = 0; i < c; ++i) {
- call->params[i] = psi_ffi_decl_arg_type(decl->args->args[i]);
+ decl->info = call;
+ call->context = C;
+
+ for (i = 0; psi_plist_get(decl->args, i, &arg); ++i) {
+ call->params[i] = psi_ffi_decl_arg_type(arg);
}
call->params[c] = NULL;
- decl->call.info = call;
- decl->call.rval = &decl->func->ptr;
- decl->call.argc = c;
- decl->call.args = (void **) &call->params[c+1];
-
rc = ffi_prep_cif(&call->signature, psi_ffi_abi(decl->abi->convention),
- c, psi_ffi_decl_arg_type(decl->func), (ffi_type **) call->params);
+ c, psi_ffi_decl_arg_type(decl->func), call->params);
ZEND_ASSERT(FFI_OK == rc);
return call;
}
-static inline ffi_status psi_ffi_call_init_closure(struct psi_context *C, struct psi_ffi_call *call, impl *impl) {
+static inline ffi_status psi_ffi_call_init_closure(struct psi_context *C, struct psi_ffi_call *call, struct psi_impl *impl) {
struct psi_ffi_context *context = C->context;
- return psi_ffi_prep_closure(&call->closure, &call->code, &context->signature, psi_ffi_handler, impl);
+ call->impl.fn.impl = impl;
+ return psi_ffi_prep_closure(&call->closure, &call->code, &context->signature, psi_ffi_handler, call);
}
-static inline ffi_status psi_ffi_call_init_callback_closure(struct psi_context *C, struct psi_ffi_call *call, let_callback *cb) {
- return psi_ffi_prep_closure(&call->closure, &call->code, &call->signature, psi_ffi_callback, cb);
+static inline ffi_status psi_ffi_call_init_callback_closure(struct psi_context *C,
+ struct psi_ffi_call *call, struct psi_ffi_call *impl_call,
+ struct psi_let_exp *cb) {
+ call->impl.cb.let_exp = cb;
+ call->impl.cb.impl_call = impl_call;
+ return psi_ffi_prep_closure(&call->closure, &call->code, &call->signature, psi_ffi_callback, call);
}
static inline void psi_ffi_call_free(struct psi_ffi_call *call) {
return padding;
}
-static ffi_type **psi_ffi_struct_type_elements(decl_struct *strct) {
- size_t i, argc = strct->args->count, nels = 0, offset = 0, maxalign = 0;
+static ffi_type **psi_ffi_struct_type_elements(struct psi_decl_struct *strct) {
+ size_t i = 0, argc = psi_plist_count(strct->args), nels = 0, offset = 0, maxalign = 0;
ffi_type **els = calloc(argc + 1, sizeof(*els));
+ struct psi_decl_arg *darg;
- for (i = 0; i < strct->args->count; ++i) {
- decl_arg *darg = strct->args->args[i];
+ while (psi_plist_get(strct->args, i++, &darg)) {
ffi_type *type = malloc(sizeof(*type));
size_t padding;
- memcpy(type, psi_ffi_decl_arg_type(darg), sizeof(*type));
-
- ZEND_ASSERT(type->size == darg->layout->len);
+ *type = *psi_ffi_decl_arg_type(darg);
if (type->alignment > maxalign) {
maxalign = type->alignment;
}
+ assert(type->size == darg->layout->len);
if ((padding = psi_offset_padding(darg->layout->pos - offset, type->alignment))) {
if (nels + padding + 1 > argc) {
argc += padding;
nels += padding;
offset += padding;
}
- ZEND_ASSERT(offset == darg->layout->pos);
+ assert(offset == darg->layout->pos);
offset = (offset + darg->layout->len + type->alignment - 1) & ~(type->alignment - 1);
els[nels++] = type;
/* apply struct alignment padding */
offset = (offset + maxalign - 1) & ~(maxalign - 1);
- ZEND_ASSERT(offset <= strct->size);
+ assert(offset <= strct->size);
if (offset < strct->size) {
psi_ffi_struct_type_pad(&els[nels], strct->size - offset);
}
return els;
}
-static inline ffi_type *psi_ffi_decl_type(decl_type *type) {
- decl_type *real = real_decl_type(type);
+static inline ffi_type *psi_ffi_decl_type(struct psi_decl_type *type) {
+ struct psi_decl_type *real = psi_decl_type_get_real(type);
switch (real->type) {
case PSI_T_STRUCT:
return real->real.strct->engine.type;
case PSI_T_UNION:
- return psi_ffi_decl_arg_type(real->real.unn->args->args[0]);
+ {
+ struct psi_decl_arg *arg;
+ psi_plist_get(real->real.unn->args, 0, &arg);
+ return psi_ffi_decl_arg_type(arg);
+ }
default:
return psi_ffi_token_type(real->type);
}
}
-static inline ffi_type *psi_ffi_decl_arg_type(decl_arg *darg) {
+static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg) {
if (darg->var->pointer_level) {
return &ffi_type_pointer;
} else {
C->context = psi_ffi_context_init(NULL);
}
-static inline void psi_ffi_destroy_callbacks(struct psi_context *C, let_val *let_val) {
- let_callback *cb;
- let_func *fn = NULL;
+static inline void psi_ffi_destroy_callbacks(struct psi_context *C, struct psi_let_exp *let_exp) {
+ struct psi_let_callback *cb;
+ struct psi_let_func *fn = NULL;
- switch (let_val->kind) {
+ switch (let_exp->kind) {
case PSI_LET_CALLBACK:
- cb = let_val->data.callback;
+ cb = let_exp->data.callback;
- if (cb->decl && cb->decl->call.info) {
- psi_ffi_call_free(cb->decl->call.info);
+ if (cb->decl && cb->decl->info) {
+ psi_ffi_call_free(cb->decl->info);
}
fn = cb->func;
/* no break */
case PSI_LET_FUNC:
if (!fn) {
- fn = let_val->data.func;
+ fn = let_exp->data.func;
}
if (fn->inner) {
- size_t i;
+ size_t i = 0;
+ struct psi_let_exp *cb;
- for (i = 0; i < fn->inner->count; ++i) {
- psi_ffi_destroy_callbacks(C, fn->inner->vals[i]);
+ while (psi_plist_get(fn->inner, i++, &cb)) {
+ psi_ffi_destroy_callbacks(C, cb);
}
}
break;
static void psi_ffi_dtor(struct psi_context *C)
{
if (C->decls) {
- size_t i;
-
- for (i = 0; i < C->decls->count; ++i) {
- decl *decl = C->decls->list[i];
+ size_t i = 0;
+ struct psi_decl *decl;
- if (decl->call.info) {
- psi_ffi_call_free(decl->call.info);
+ while (psi_plist_get(C->decls, i++, &decl)) {
+ if (decl->info) {
+ psi_ffi_call_free(decl->info);
}
}
}
if (C->impls) {
- size_t i, j;
-
- for (i = 0; i < C->impls->count; ++i) {
- impl *impl = C->impls->list[i];
+ size_t i = 0;
+ struct psi_impl *impl;
- for (j = 0; j < impl->stmts->let.count; ++j) {
- let_stmt *let = impl->stmts->let.list[j];
+ while (psi_plist_get(C->impls, i++, &impl)) {
+ size_t j = 0;
+ struct psi_let_stmt *let;
- if (let->val && let->val->kind == PSI_LET_CALLBACK) {
- let_callback *cb = let->val->data.callback;
-
- if (cb->decl && cb->decl->call.info) {
- psi_ffi_call_free(cb->decl->call.info);
- }
- }
+ while (psi_plist_get(impl->stmts.let, j++, &let)) {
+ psi_ffi_destroy_callbacks(C, let->exp);
}
}
}
psi_ffi_context_free((void *) &C->context);
}
-static inline void psi_ffi_compile_callbacks(struct psi_context *C, let_val *let_val) {
+static inline void psi_ffi_compile_callbacks(struct psi_context *C,
+ struct psi_ffi_call *impl_call, struct psi_let_exp *let_exp) {
struct psi_ffi_call *call;
- let_callback *cb;
- let_func *fn = NULL;
+ struct psi_let_callback *cb;
+ struct psi_let_func *fn = NULL;
- switch (let_val->kind) {
+ switch (let_exp->kind) {
case PSI_LET_CALLBACK:
- cb = let_val->data.callback;
+ cb = let_exp->data.callback;
if ((call = psi_ffi_call_alloc(C, cb->decl))) {
- if (FFI_OK != psi_ffi_call_init_callback_closure(C, call, cb)) {
+ if (FFI_OK != psi_ffi_call_init_callback_closure(C, call, impl_call, let_exp)) {
psi_ffi_call_free(call);
break;
}
- cb->decl->call.sym = call->code;
+ cb->decl->sym = call->code;
}
fn = cb->func;
/* no break */
case PSI_LET_FUNC:
if (!fn) {
- fn = let_val->data.func;
+ fn = let_exp->data.func;
}
if (fn->inner) {
- size_t i;
+ size_t i = 0;
+ struct psi_let_exp *inner_let;
- for (i = 0; i < fn->inner->count; ++i) {
- psi_ffi_compile_callbacks(C, fn->inner->vals[i]);
+ while (psi_plist_get(fn->inner, i++, &inner_let)) {
+ psi_ffi_compile_callbacks(C, impl_call, inner_let);
}
}
break;
static zend_function_entry *psi_ffi_compile(struct psi_context *C)
{
- size_t c, i, j = 0;
+ size_t i = 0, d = 0, nf = 0;
+ struct psi_impl *impl;
+ struct psi_decl *decl;
zend_function_entry *zfe;
if (!C->impls) {
return NULL;
}
- zfe = calloc(C->impls->count + 1, sizeof(*zfe));
- for (i = 0; i < C->impls->count; ++i) {
- zend_function_entry *zf = &zfe[j];
+ zfe = calloc(psi_plist_count(C->impls) + 1, sizeof(*zfe));
+
+ while (psi_plist_get(C->impls, i++, &impl)) {
+ size_t l = 0;
+ struct psi_let_stmt *let;
struct psi_ffi_call *call;
- impl *impl = C->impls->list[i];
+ zend_function_entry *zf = &zfe[nf];
if (!impl->decl) {
continue;
}
zf->fname = impl->func->name + (impl->func->name[0] == '\\');
- zf->num_args = impl->func->args->count;
zf->handler = call->code;
+ zf->num_args = psi_plist_count(impl->func->args);
zf->arg_info = psi_internal_arginfo(impl);
- ++j;
+ ++nf;
- for (c = 0; c < impl->stmts->let.count; ++c) {
- psi_ffi_compile_callbacks(C, impl->stmts->let.list[c]->val);
+ while (psi_plist_get(impl->stmts.let, l++, &let)) {
+ psi_ffi_compile_callbacks(C, call, let->exp);
}
}
- for (i = 0; i < C->decls->count; ++i) {
- decl *decl = C->decls->list[i];
-
- if (decl->call.info) {
+ while (psi_plist_get(C->decls, d++, &decl)) {
+ if (decl->info) {
continue;
}
return zfe;
}
-static void psi_ffi_call(struct psi_context *C, decl_callinfo *decl_call, impl_vararg *va) {
- struct psi_ffi_call *call = decl_call->info;
+static void psi_ffi_call(struct psi_context *C, struct psi_call_frame *frame, struct psi_decl *decl, void *rval, void **args) {
+ struct psi_ffi_call *info = decl->info;
+ struct psi_call_frame *prev = info->impl.fn.frame;
- if (va) {
- ffi_status rc;
- ffi_cif signature;
- size_t i, nfixedargs = decl_call->argc, ntotalargs = nfixedargs + va->args->count;
- void **params = calloc(2 * ntotalargs + 2, sizeof(void *));
+ info->impl.fn.frame = frame;
+ ffi_call(&info->signature, FFI_FN(decl->sym), rval, args);
+ info->impl.fn.frame = prev;
+}
- for (i = 0; i < nfixedargs; ++i) {
- params[i] = call->params[i];
- params[i + ntotalargs + 1] = call->params[i + nfixedargs + 1];
- }
- for (i = 0; i < va->args->count; ++i) {
- params[nfixedargs + i] = psi_ffi_impl_type(va->types[i]);
- params[nfixedargs + i + ntotalargs + 1] = &va->values[i];
- }
-#ifdef PSI_HAVE_FFI_PREP_CIF_VAR
- rc = ffi_prep_cif_var(&signature, call->signature.abi,
- nfixedargs, ntotalargs,
- call->signature.rtype, (ffi_type **) params);
-#else
- /* FIXME: test in config.m4; assume we can just call anyway */
- rc = ffi_prep_cif(&signature, call->signature.abi, ntotalargs,
- call->signature.rtype, (ffi_type **) params);
-#endif
- ZEND_ASSERT(FFI_OK == rc);
- ffi_call(&signature, FFI_FN(decl_call->sym), *decl_call->rval, ¶ms[ntotalargs + 1]);
- free(params);
- } else {
- ffi_call(&call->signature, FFI_FN(decl_call->sym), *decl_call->rval, decl_call->args);
+static void psi_ffi_call_va(struct psi_context *C, struct psi_call_frame *frame, struct psi_decl *decl, void *rval, void **args,
+ size_t va_count, void **va_types) {
+ ffi_cif signature;
+ struct psi_ffi_call *info = decl->info;
+ struct psi_call_frame *prev = info->impl.fn.frame;
+ size_t argc = psi_plist_count(decl->args);
+ ffi_type **param_types = ecalloc(argc + va_count + 1, sizeof(ffi_type *));
+
+ memcpy(param_types, info->params, argc * sizeof(ffi_type *));
+ memcpy(param_types + argc, va_types, va_count * sizeof(ffi_type *));
+
+ psi_ffi_prep_va(&info->signature, &signature, argc, va_count, param_types);
+ info->impl.fn.frame = frame;
+ ffi_call(&signature, FFI_FN(decl->sym), rval, args);
+ info->impl.fn.frame = prev;
+ efree(param_types);
+}
+
+static void *psi_ffi_query(struct psi_context *C, enum psi_context_query q, void *arg) {
+ switch (q) {
+ case PSI_CONTEXT_QUERY_SELF:
+ return "ffi";
+ case PSI_CONTEXT_QUERY_TYPE:
+ return psi_ffi_impl_type(*(token_t *) arg);
}
+ return NULL;
}
static struct psi_context_ops ops = {
psi_ffi_dtor,
psi_ffi_compile,
psi_ffi_call,
+ psi_ffi_call_va,
+ psi_ffi_query,
};
struct psi_context_ops *psi_libffi_ops(void)
projects / m6w6 / ext-psi / blobdiff