mu/subx/039debug.cc
Kartik Agaram 8950915a00 4678
A debugging aid: 'subx --map translate' dumps a mapping from functions
to addresses to a file called "map", and 'subx --map run' loads the mapping
in "map", augmenting debug traces.

Let's see how much this helps. Debugging machine code has been pretty painful
lately.
2018-10-10 20:54:15 -07:00

26 lines
701 B
C++

//: Some helpers for debugging.
// Load the 'map' file generated during 'subx --map translate' when running 'subx --map --dump run'.
// (It'll only affect the trace.)
:(before "End Globals")
map</*address*/uint32_t, string> Symbol_name; // used only by 'subx run'
:(before "End --map Settings")
load_map("map");
:(code)
void load_map(const string& map_filename) {
ifstream fin(map_filename.c_str());
fin >> std::hex;
while (has_data(fin)) {
uint32_t addr = 0;
fin >> addr;
string name;
fin >> name;
put(Symbol_name, addr, name);
}
}
:(after "Run One Instruction")
if (contains_key(Symbol_name, EIP))
trace(90, "run") << "== label " << get(Symbol_name, EIP) << end();