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fix for find dwarf CU for function, fix for find library base address

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This commit is contained in:
nnosov
2020-01-16 16:51:36 +04:00
parent 18450ef1b2
commit 1e395e5cac
1 changed files with 11 additions and 4 deletions
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framework/sysutils.cpp
+11 -4
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@@ -723,10 +723,11 @@ bool __pst_handler::get_dwarf_function(pst_function* fun)
{
Dwarf_Addr mod_cu = 0;
// get CU(Compilation Unit) debug definition
Dwarf_Die* cdie = dwfl_module_addrdie(module, addr, &mod_cu);
module = dwfl_addrmodule(dwfl, fun->pc);
Dwarf_Die* cdie = dwfl_module_addrdie(module, fun->pc, &mod_cu);
//Dwarf_Die* cdie = dwfl_addrdie(dwfl, addr, &mod_bias);
if(!cdie) {
ctx.log(SEVERITY_INFO, "Failed to find DWARF DIE for address %X", addr);
ctx.log(SEVERITY_INFO, "Failed to find DWARF DIE for address %X", fun->pc);
return false;
}
@@ -746,6 +747,7 @@ bool __pst_handler::get_dwarf_function(pst_function* fun)
do {
int tag = dwarf_tag(&result);
if(tag == DW_TAG_subprogram || tag == DW_TAG_entry_point || tag == DW_TAG_inlined_subroutine) {
//ctx.log(SEVERITY_DEBUG, "function die name %s", dwarf_diename(&result));
if(!strcmp(fun->name.c_str(), dwarf_diename(&result))) {
return fun->handle_dwarf(&result);
}
@@ -791,7 +793,12 @@ pst_function* __pst_handler::next_function(pst_function* f)
bool __pst_handler::handle_dwarf()
{
Dl_info info;
for(pst_function* fun = next_function(NULL); fun; fun = next_function(fun)) {
dladdr((void*)(fun->pc), &info);
ctx.base_addr = (uint64_t)info.dli_fbase;
ctx.curr_frame = fun->cursor;
if(fun->parent) {
ctx.next_frame = fun->parent->cursor;
@@ -848,11 +855,11 @@ bool __pst_handler::unwind()
#endif
ctx.offset = 0;
handle = dlopen(NULL, RTLD_NOW);
//handle = dlopen(NULL, RTLD_NOW);
Dl_info info;
dladdr(caller, &info);
ctx.base_addr = (uint64_t)info.dli_fbase;
ctx.log(SEVERITY_INFO, "Process address information: base address: %p, object name: %s", info.dli_fbase, info.dli_fname);
ctx.log(SEVERITY_INFO, "Process address information: PC address: %p, base address: %p, object name: %s", caller, info.dli_fbase, info.dli_fname);
int skipped = 0;
#ifndef USE_LIBUNWIND