1 /* 2 +----------------------------------------------------------------------+ 3 | Zend Engine, Call Graph | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) The PHP Group | 6 +----------------------------------------------------------------------+ 7 | This source file is subject to version 3.01 of the PHP license, | 8 | that is bundled with this package in the file LICENSE, and is | 9 | available through the world-wide-web at the following url: | 10 | https://www.php.net/license/3_01.txt | 11 | If you did not receive a copy of the PHP license and are unable to | 12 | obtain it through the world-wide-web, please send a note to | 13 | license@php.net so we can mail you a copy immediately. | 14 +----------------------------------------------------------------------+ 15 | Authors: Dmitry Stogov <dmitry@php.net> | 16 +----------------------------------------------------------------------+ 17 */ 18 19 #ifndef ZEND_CALL_GRAPH_H 20 #define ZEND_CALL_GRAPH_H 21 22 #include "zend_ssa.h" 23 #include "zend_func_info.h" 24 #include "zend_optimizer.h" 25 26 typedef struct _zend_send_arg_info { 27 zend_op *opline; 28 } zend_send_arg_info; 29 30 struct _zend_call_info { 31 zend_op_array *caller_op_array; 32 zend_op *caller_init_opline; 33 zend_op *caller_call_opline; 34 zend_function *callee_func; 35 zend_call_info *next_caller; 36 zend_call_info *next_callee; 37 bool recursive; 38 bool send_unpack; /* Parameters passed by SEND_UNPACK or SEND_ARRAY */ 39 bool named_args; /* Function has named arguments */ 40 bool is_prototype; /* An overridden child method may be called */ 41 bool is_frameless; /* A frameless function sends arguments through operands */ 42 int num_args; /* Number of arguments, excluding named and variadic arguments */ 43 zend_send_arg_info arg_info[1]; 44 }; 45 46 struct _zend_func_info { 47 int num; 48 uint32_t flags; 49 zend_ssa ssa; /* Static Single Assignment Form */ 50 zend_call_info *caller_info; /* where this function is called from */ 51 zend_call_info *callee_info; /* which functions are called from this one */ 52 zend_call_info **call_map; /* Call info associated with init/call/send opnum */ 53 zend_ssa_var_info return_info; 54 }; 55 56 typedef struct _zend_call_graph { 57 int op_arrays_count; 58 zend_op_array **op_arrays; 59 zend_func_info *func_infos; 60 } zend_call_graph; 61 62 BEGIN_EXTERN_C() 63 64 ZEND_API void zend_build_call_graph(zend_arena **arena, zend_script *script, zend_call_graph *call_graph); 65 ZEND_API void zend_analyze_call_graph(zend_arena **arena, zend_script *script, zend_call_graph *call_graph); 66 ZEND_API zend_call_info **zend_build_call_map(zend_arena **arena, zend_func_info *info, const zend_op_array *op_array); 67 ZEND_API void zend_analyze_calls(zend_arena **arena, zend_script *script, uint32_t build_flags, zend_op_array *op_array, zend_func_info *func_info); 68 69 END_EXTERN_C() 70 71 #endif /* ZEND_CALL_GRAPH_H */ 72
