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dmnt2: fix module name detection, add auto-break on hb nro launch

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This commit is contained in:
Michael Scire
2021-11-01 21:43:29 -07:00
committed by SciresM
parent c17ad1e0e3
commit e3d2af6b3f
3 changed files with 50 additions and 13 deletions
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45
stratosphere/dmnt.gen2/source/dmnt2_gdb_server_impl.cpp
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@@ -947,6 +947,9 @@ namespace ams::dmnt {
void GdbServerImpl::ProcessDebugEvents() {
AMS_DMNT2_GDB_LOG_DEBUG("Processing debug events for %016lx\n", m_process_id.value);
u64 new_hb_nro_addr = 0;
u32 new_hb_nro_insn = 0;
while (true) {
/* Wait for an event to come in. */
const Result wait_result = [&] ALWAYS_INLINE_LAMBDA {
@@ -1028,6 +1031,25 @@ namespace ams::dmnt {
/* Re-collect the process's modules. */
m_debug_process.CollectModules();
}
if (m_debug_process.GetOverrideStatus().IsHbl() && reason == svc::BreakReason_PostLoadDll) {
if (R_SUCCEEDED(m_debug_process.ReadMemory(std::addressof(new_hb_nro_insn), info.address, sizeof(new_hb_nro_insn)))) {
const u32 break_insn = SdkBreakPoint;
if (R_SUCCEEDED(m_debug_process.WriteMemory(std::addressof(break_insn), info.address, sizeof(break_insn)))) {
AMS_DMNT2_GDB_LOG_DEBUG("Set automatic break on new homebrew NRO (%lx, %lx)\n", info.address, info.size);
new_hb_nro_addr = info.address;
} else {
AMS_DMNT2_GDB_LOG_DEBUG("Failed to set automatic break on new homebrew NRO (%lx, %lx)\n", info.address, info.size);
}
} else {
AMS_DMNT2_GDB_LOG_DEBUG("Failed to read first insn on new homebrew NRO (%lx, %lx)\n", info.address, info.size);
}
}
/* This was just a notification, so we should continue. */
m_debug_process.Continue();
continue;
}
/* Check if we should automatically continue. */
@@ -1074,6 +1096,8 @@ namespace ams::dmnt {
const u32 insn = d.info.exception.specific.undefined_instruction.insn;
u32 new_insn = 0;
bool is_new_hb_nro = false;
svc::ThreadContext ctx;
if (R_SUCCEEDED(m_debug_process.GetThreadContext(std::addressof(ctx), thread_id, svc::ThreadContextFlag_Control))) {
bool insn_changed = false;
@@ -1115,6 +1139,19 @@ namespace ams::dmnt {
{
signal = GdbSignal_BreakpointTrap;
}
if (m_debug_process.GetOverrideStatus().IsHbl() && address == new_hb_nro_addr && insn == SdkBreakPoint) {
if (R_SUCCEEDED(m_debug_process.WriteMemory(std::addressof(new_hb_nro_insn), new_hb_nro_addr, sizeof(new_hb_nro_insn)))) {
AMS_DMNT2_GDB_LOG_DEBUG("Did automatic break on new homebrew NRO (%lx)\n", address);
new_hb_nro_addr = 0;
new_hb_nro_insn = 0;
is_new_hb_nro = true;
} else {
AMS_DMNT2_GDB_LOG_ERROR("Failed to restore instruction for new homebrew NRO (%lx)!\n", address);
}
}
}
if (insn_changed) {
@@ -1128,7 +1165,7 @@ namespace ams::dmnt {
AMS_DMNT2_GDB_LOG_DEBUG("Non-SDK BreakPoint %lx, address=%p, insn=%08x\n", thread_id, reinterpret_cast<void *>(address), insn);
}
if (signal == GdbSignal_BreakpointTrap) {
if (signal == GdbSignal_BreakpointTrap && !is_new_hb_nro) {
SetReply(send_buffer, "T%02Xthread:p%lx.%lx;swbreak:;", static_cast<u32>(signal), m_process_id.value, thread_id);
reply = true;
}
@@ -2049,8 +2086,6 @@ namespace ams::dmnt {
/* Note that we're attaching. */
SetReply(m_buffer, "Attach to 0x%lx.\n", m_wait_process_id.value);
} else if (ParsePrefix(command, "wait homebrew") || ParsePrefix(command, "wait hb")) {
SetReply(m_buffer, "[TODO] wait for next homebrew\n");
} else if (ParsePrefix(command, "wait ")) {
/* Allow optional "0x" prefix. */
ParsePrefix(command, "0x");
@@ -2074,8 +2109,8 @@ namespace ams::dmnt {
AppendReply(m_reply_packet, ";qXfer:osdata:read+");
AppendReply(m_reply_packet, ";qXfer:features:read+");
AppendReply(m_reply_packet, ";qXfer:libraries:read+");
AppendReply(m_reply_packet, ";qXfer:libraries-svr4:read+");
AppendReply(m_reply_packet, ";augmented-libraries-svr4-read+");
// TODO: AppendReply(m_reply_packet, ";qXfer:libraries-svr4:read+");
// TODO: AppendReply(m_reply_packet, ";augmented-libraries-svr4-read+");
AppendReply(m_reply_packet, ";qXfer:threads:read+");
AppendReply(m_reply_packet, ";qXfer:exec-file:read+");
AppendReply(m_reply_packet, ";swbreak+");