Emulation/Mephisto
1
0
Fork 0
mirror of https://github.com/reswitched/Mephisto.git synced 2024-06-16 03:16:50 -04:00
Code Issues Packages Projects Releases Wiki Activity

initial nro support

Browse source
This commit is contained in:
misson20000 2017-10-01 17:48:51 -07:00
parent ef50b7ded1
commit 2a6e8b5447
3 changed files with 68 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
Nxo.cpp
View file

@ -52,3 +52,30 @@ guint Nso::load(Ctu &ctu, gptr base, bool relocate) {
return tsize;
}
typedef struct {
uint32_t unk0, moduleHeaderOff, unk2, unk3;
uint32_t magic, unk5, fileSize, unk7;
uint32_t textOff, textSize, roOff, roSize;
uint32_t dataOff, dataSize, bssSize, unk15;
uint8_t restOfTheHeader[0x80]; // bunch of hashes and stuff
} NroHeader;
guint Nro::load(Ctu &ctu, gptr base, bool relocate) {
NroHeader hdr;
fp.read((char *) &hdr, sizeof(NroHeader));
if(hdr.magic != FOURCC('N', 'R', 'O', '0')) {
return 0;
}
gptr tsize = hdr.fileSize + hdr.bssSize;
ctu.cpu.map(base, tsize);
char *image = new char[hdr.fileSize];
fp.seekg(0);
fp.read(image, hdr.fileSize);
ctu.cpu.writemem(base, image, hdr.fileSize);
delete[] image;
return tsize;
}

8
Nxo.h
View file

@ -21,3 +21,11 @@ public:
guint load(Ctu &ctu, gptr base, bool relocate=false) override;
};
class Nro : Nxo {
public:
Nro(string fn) : Nxo(fn) {}
virtual ~Nro() override {}
guint load(Ctu &ctu, gptr base, bool reloacte=false) override;
};

39
main.cpp
View file

@ -38,7 +38,7 @@ struct Arg: public option::Arg
}
};
enum optionIndex { UNKNOWN, HELP, ENABLE_GDB, PORT, NSO };
enum optionIndex { UNKNOWN, HELP, ENABLE_GDB, PORT, NSO, NRO };
const option::Descriptor usage[] =
{
{UNKNOWN, 0, "", "",Arg::None, "USAGE: ctu [options] <load-directory>\n\n"
@ -46,7 +46,8 @@ const option::Descriptor usage[] =
{HELP, 0,"","help",Arg::None, " --help \tUnsurprisingly, print this message." },
{ENABLE_GDB, 0,"g","enable-gdb",Arg::None, " --enable-gdb, -g \tEnable GDB stub." },
{PORT, 0,"p","gdb-port",Arg::Numeric, " --gdb-port, -p \tSet port for GDB; default 24689." },
{NSO, 0,"","load-nso",Arg::NonEmpty, " --load-nso \tLoad an NSO without load directory"},
{NSO, 0,"","load-nso",Arg::NonEmpty, " --load-nso \tLoad an NSO without load directory"},
{NRO, 0,"","load-nro",Arg::NonEmpty, " --load-nro \tLoad an NRO without load directory (entry point .text+0x80)"},
{0,0,nullptr,nullptr,nullptr,nullptr}
};
@ -64,6 +65,15 @@ void loadNso(Ctu &ctu, const string &lfn, gptr raddr) {
ctu.loadsize = max(top - ctu.loadbase, ctu.loadsize);
}
void loadNro(Ctu &ctu, const string &lfn, gptr raddr) {
assert(exists(lfn));
Nro file(lfn);
file.load(ctu, raddr, false);
ctu.loadbase = min(raddr, ctu.loadbase);
auto top = raddr + 0x100000000;
ctu.loadsize = max(top - ctu.loadbase, ctu.loadsize);
}
void runLisp(Ctu &ctu, const string &dir, shared_ptr<Atom> code) {
assert(code->type == List && code->children.size() >= 1);
auto head = code->children[0];
@ -91,11 +101,25 @@ int main(int argc, char **argv) {
vector<option::Option> buffer(stats.buffer_max);
option::Parser parse(usage, argc, argv, &options[0], &buffer[0]);
if(parse.error())
if(parse.error()) {
return 1;
else if(options[HELP].count() || options[UNKNOWN].count() || (options[NSO].count() == 0 && parse.nonOptionsCount() != 1) || (options[NSO].count() == 1 && parse.nonOptionsCount() != 0)) {
option::printUsage(cout, usage);
return 0;
} else {
if(options[HELP].count() || options[UNKNOWN].count()) {
printUsage:
option::printUsage(cout, usage);
return 0;
}
if(options[NSO].count() > 0) {
if(options[NSO].count() != 1) { goto printUsage; }
if(options[NRO].count() != 0) { goto printUsage; }
if(parse.nonOptionsCount() != 0) { goto printUsage; }
} else if(options[NRO].count() > 0) {
if(options[NRO].count() != 1) { goto printUsage; }
if(options[NSO].count() != 0) { goto printUsage; }
if(parse.nonOptionsCount() != 0) { goto printUsage; }
} else {
if(parse.nonOptionsCount() != 1) { goto printUsage; }
}
}
Ctu ctu;
@ -110,6 +134,9 @@ int main(int argc, char **argv) {
if(options[NSO].count()) {
loadNso(ctu, options[NSO][0].arg, 0x7100000000);
ctu.execProgram(0x7100000000);
} else if(options[NRO].count()) {
loadNro(ctu, options[NRO][0].arg, 0x7100000000);
ctu.execProgram(0x7100000080);
} else {
string dir = parse.nonOption(0);
auto lfn = dir + "/load.meph";