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bunch of changes. mainly is: got right CFA from both libunwind & libdw

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This commit is contained in:
nnosov
2020-01-23 19:49:51 +04:00
parent 6e6e0c22ed
commit 952b71d9d3
5 changed files with 294 additions and 185 deletions
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framework/sysutils.h
+8 -8
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@@ -23,8 +23,6 @@
#include "common.h"
char* GetExecutableName(char* path, uint32_t size);
typedef struct __pst_function pst_function;
typedef struct __pst_type : public SC_ListNode {
@@ -43,7 +41,7 @@ typedef struct __pst_parameter : public SC_ListNode {
die = NULL;
size = 0;
type = 0;
loc = NULL;
enc_type = 0;
is_return = false;
is_variable = false;
has_value = false;
@@ -68,9 +66,9 @@ typedef struct __pst_parameter : public SC_ListNode {
std::string name; // parameter's name
uint32_t line; // line of parameter definition
Dwarf_Word size; // size of parameter in bytes
int type; // base type of parameter in DW_TAG_XXX types enumeration
int type; // type of parameter in DW_TAG_XXX types enumeration
Dwarf_Word enc_type; // if 'type' is DW_TAG_Base_type, then 'base_type' holds DW_AT_ATE_XXX base type encoding type
SC_ListHead types; // list of parameter's definitions i.e. 'typedef', 'uint32_t'
void* loc; // pointer to location of parameter's value
bool is_return; // whether this parameter is return value of the function
bool is_variable;// whether this parameter is function variable or argument of function
bool has_value; // whether we got value of parameter or not
@@ -87,9 +85,9 @@ typedef struct __pst_function : public SC_ListNode {
die = NULL;
lowpc = 0;
highpc = 0;
parent = NULL;
cursor = _ctx->curr_frame;
memcpy(&cursor, _ctx->curr_frame, sizeof(cursor));
parent = _parent;
sp = 0;
}
~__pst_function() {
@@ -113,6 +111,7 @@ typedef struct __pst_function : public SC_ListNode {
std::string name; // function's name
SC_ListHead params; // function's parameters
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_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
@@ -144,11 +143,12 @@ typedef struct __pst_handler {
pst_function* add_function(__pst_function* fun);
void del_function(pst_function* f);
pst_function* next_function(pst_function* f);
pst_function* last_function();
bool handle_dwarf();
void print_dwarf();
bool unwind();
bool get_frame();
bool get_frame(pst_function* fun);
bool get_dwarf_function(pst_function* fun);
pst_context ctx; // context of unwinding