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
@@ -0,0 +1,63 @@
+/*
+ * dwarf_call_site.h
+ *
+ *  Created on: Feb 1, 2020
+ *      Author: nnosov
+ */
+
+#ifndef FRAMEWORK_DWARF_CALL_SITE_H_
+#define FRAMEWORK_DWARF_CALL_SITE_H_
+
+#include <inttypes.h>
+#include <elfutils/libdw.h>
+
+#include "list_head.h"
+#include "context.h"
+#include "dwarf_expression.h"
+
+
+// -----------------------------------------------------------------------------------
+// DW_TAG_call_site_parameter
+// -----------------------------------------------------------------------------------
+typedef struct pst_call_site_param {
+    list_node           node;   // uplink. !!! must be first !!!
+
+    // methods
+    void (*set_location) (pst_call_site_param* param, Dwarf_Op* expr, size_t exprlen);
+
+    // fields
+    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
+    bool                        allocated;  // whether this object was allocated or not
+} pst_call_site_param;
+
+void pst_call_site_param_init(pst_call_site_param* param);
+pst_call_site_param* pst_call_site_param_new();
+void pst_call_site_param_fini(pst_call_site_param* param);
+
+// -----------------------------------------------------------------------------------
+// DW_TAG_call_site
+// -----------------------------------------------------------------------------------
+typedef struct pst_call_site {
+    list_node       node;   // uplink. !!! must be first !!!
+
+    // methods
+    pst_call_site_param*    (*add_param)    (pst_call_site* site);
+    void                    (*del_param)    (pst_call_site* site, pst_call_site_param* p);
+    pst_call_site_param*    (*next_param)   (pst_call_site* site, pst_call_site_param* p);
+    pst_call_site_param*    (*find_param)   (pst_call_site* site, pst_dwarf_expr& expr);
+    bool                    (*handle_dwarf) (pst_call_site* site, Dwarf_Die* die);
+
+    // fields
+    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
+    list_head       params;     // list of parameters and their values
+    pst_context*    ctx;        // execution context
+    bool            allocated;  // whether this object was allocated or not
+} pst_call_site;
+
+
+#endif /* FRAMEWORK_DWARF_CALL_SITE_H_ */