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Show more information about module in Windows #342

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11899ae
If we call SymInitialize in TraceResolverImpl constructor then it is …
peter23 Sep 13, 2024
319a3e3
1. We can provide some additional info about module in cases when Sym…
peter23 Sep 13, 2024
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15 changes: 14 additions & 1 deletion backward.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3633,6 +3633,10 @@ template <> class TraceResolverImpl<system_tag::windows_tag>
image_type = h->FileHeader.Machine;
}

~TraceResolverImpl() {
SymCleanup(GetCurrentProcess());
}

static const int max_sym_len = 255;
struct symbol_t {
SYMBOL_INFO sym;
Expand All @@ -3644,6 +3648,15 @@ template <> class TraceResolverImpl<system_tag::windows_tag>
ResolvedTrace resolve(ResolvedTrace t) override {
HANDLE process = GetCurrentProcess();

std::string mod_info_str = "";
HMODULE hmod = (HMODULE)SymGetModuleBase64(process, (DWORD64)t.addr);
if(hmod) {
const auto mod_info = get_mod_info(process)(hmod);
std::stringstream stream;
stream << mod_info.module_name << " (base 0x" << std::hex << (DWORD64)mod_info.base_address << ")";
mod_info_str = stream.str();
}

char name[256];

memset(&sym, 0, sizeof(sym));
Expand Down Expand Up @@ -3678,7 +3691,7 @@ template <> class TraceResolverImpl<system_tag::windows_tag>
}

t.source.function = name;
t.object_filename = "";
t.object_filename = mod_info_str;
t.object_function = name;

return t;
Expand Down