move pst_call_site & pst_parameter to C language and separate them

2020-02-01 17:09:12 +04:00
parent 8251ba526f
commit e27f0c5c18
11 changed files with 978 additions and 804 deletions
@@ -29,125 +29,8 @@
 #include "list_head.h"
 #include "dwarf_expression.h"
 #include "dwarf_parameter.h"
-
-
-// DW_TAG_call_site_parameter
-typedef struct __pst_call_site_param : public SC_ListNode {
-    __pst_call_site_param(pst_context* ctx) {
-        param = NULL; name = NULL; value = 0;
-        pst_dwarf_expr_init(&location, ctx->alloc);
-    }
-
-    ~__pst_call_site_param() {
-        if(name) {
-            free(name); name = NULL;
-        }
-    }
-
-    void set_location(Dwarf_Op* expr, size_t exprlen);
-
-    Dwarf_Die*                  param;      // reference to parameter DIE in callee (DW_AT_call_parameter)
-    char*                       name;       // name of parameter if present (DW_AT_name)
-    pst_dwarf_expr              location;   // DWARF stack containing location expression
-    uint64_t                    value;      // parameter's value
-} pst_call_site_param;
-
-// DW_TAG_call_site
-typedef struct __pst_call_site : public SC_ListNode {
-    __pst_call_site(pst_context* c, uint64_t tgt, const char* orn) {
-        target = tgt;
-        if(orn) {
-            origin = strdup(orn);
-        } else {
-            origin = NULL;
-        }
-        die = NULL;
-        ctx = c;
-    }
-
-    ~__pst_call_site() {
-        if(origin) {
-            free(origin);
-            origin = NULL;
-        }
-    }
-
-    pst_call_site_param* add_param();
-    void del_param(pst_call_site_param* p);
-    pst_call_site_param* next_param(pst_call_site_param* p);
-    pst_call_site_param* find_param(pst_dwarf_expr& expr);
-
-    bool handle_dwarf(Dwarf_Die* die);
-
-    uint64_t                    target;     // pointer to callee function's (it's Low PC + base address)
-    char*                       origin;     // name of callee function
-    Dwarf_Die*                  die;        // DIE of function for which this call site has parameters
-    SC_ListHead                 params;     // list of parameters and their values
-    pst_context*                ctx;
-} pst_call_site;
-
-typedef struct __pst_function : public SC_ListNode {
-	__pst_function(pst_context* _ctx, __pst_function* _parent) : ctx(_ctx) {
-		pc = 0;
-		line = -1;
-		die = NULL;
-		lowpc = 0;
-		highpc = 0;
-		memcpy(&cursor, _ctx->curr_frame, sizeof(cursor));
-		parent = _parent;
-		sp = 0;
-		cfa = 0;
-		frame = NULL;
-	}
-
-	~__pst_function() {
-	    clear();
-	    if(frame) {
-	        free(frame);
-	    }
-	}
-
-    void clear();
-    pst_parameter* add_param();
-    void del_param(pst_parameter* p);
-    pst_parameter* next_param(pst_parameter* p);
-
-    pst_call_site* add_call_site(uint64_t target, const char* origin);
-    void del_call_site(pst_call_site* st);
-    pst_call_site* next_call_site(pst_call_site* st);
-    pst_call_site* call_site_by_origin(const char* origin);
-    pst_call_site* call_site_by_target(uint64_t target);
-
-	bool unwind(Dwarf_Addr addr);
-	bool handle_dwarf(Dwarf_Die* d);
-	bool print_dwarf();
-	bool handle_lexical_block(Dwarf_Die* result);
-	bool handle_call_site(Dwarf_Die* result);
-	pst_call_site* find_call_site(__pst_function* callee);
-
-	bool get_frame();
-
-	Dwarf_Addr					lowpc;  // offset to start of the function against base address
-	Dwarf_Addr					highpc; // offset to the next address after the end of the function against base address
-	Dwarf_Die*					die; 	// DWARF DIE containing definition of the function
-	std::string					name;	// function's name
-	SC_ListHead	                params;	// function's parameters
-
-	// call-site
-	SC_ListHead                 call_sites;     // Call-Site definitions
-	SC_Dict                     mCallStToTarget; // map pointer to caller to call-site
-	SC_Dict                     mCallStToOrigin; // map caller name to call-site
-
-	unw_word_t  				pc;		// address between lowpc & highpc (plus base address offset). actually, currently executed command
-	unw_word_t                  sp;     // SP register in function's frame
-	unw_word_t                  cfa;    // CFA (Canonical Frame Adress) of the function
-	unw_cursor_t                cursor; // copy of stack state of the function
-	int							line;	// line in code where function is defined
-	std::string					file;	// file name (DWARF Compilation Unit) where function is defined
-	__pst_function*             parent; // parent function in call trace (caller)
-    Dwarf_Frame*                frame;  // function's stack frame
-	pst_context*				ctx;    // context of unwinding
-} pst_function;
+#include "dwarf_utils.h"
+#include "dwarf_function.h"

 typedef struct __pst_handler {
 	__pst_handler(ucontext_t* hctx)
@@ -170,7 +53,7 @@ typedef struct __pst_handler {
 	}

    void clear();
-    pst_function* add_function(__pst_function* fun);
+    pst_function* add_function(pst_function* fun);
    void del_function(pst_function* f);
    pst_function* next_function(pst_function* f);
    pst_function* last_function();