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Merge pull request #5240 from sepalani/find_handlers 

PPCAnalyst: Find interrupt/exception handlers
This commit is contained in:
Anthony 2017-04-29 12:44:41 -07:00 committed by GitHub
parent 4d3a794942 e8f52e467b
commit cb2e7a6cac
1 changed files with 35 additions and 0 deletions
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35
Source/Core/Core/PowerPC/PPCAnalyst.cpp
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@ -300,6 +300,40 @@ static void FindFunctionsFromBranches(u32 startAddr, u32 endAddr, SymbolDB* func
}
}
static void FindFunctionsFromHandlers(PPCSymbolDB* func_db)
{
static const std::map<u32, const char* const> handlers = {
{0x80000100, "system_reset_exception_handler"},
{0x80000200, "machine_check_exception_handler"},
{0x80000300, "dsi_exception_handler"},
{0x80000400, "isi_exception_handler"},
{0x80000500, "external_interrupt_exception_handler"},
{0x80000600, "alignment_exception_handler"},
{0x80000700, "program_exception_handler"},
{0x80000800, "floating_point_unavailable_exception_handler"},
{0x80000900, "decrementer_exception_handler"},
{0x80000C00, "system_call_exception_handler"},
{0x80000D00, "trace_exception_handler"},
{0x80000E00, "floating_point_assist_exception_handler"},
{0x80000F00, "performance_monitor_interrupt_handler"},
{0x80001300, "instruction_address_breakpoint_exception_handler"},
{0x80001400, "system_management_interrupt_handler"},
{0x80001700, "thermal_management_interrupt_exception_handler"}};
for (const auto& entry : handlers)
{
const PowerPC::TryReadInstResult read_result = PowerPC::TryReadInstruction(entry.first);
if (read_result.valid && PPCTables::IsValidInstruction(read_result.hex))
{
// Check if this function is already mapped
Symbol* f = func_db->AddFunction(entry.first);
if (!f)
continue;
f->name = entry.second;
}
}
}
static void FindFunctionsAfterReturnInstruction(PPCSymbolDB* func_db)
{
std::vector<u32> funcAddrs;
@ -340,6 +374,7 @@ void FindFunctions(u32 startAddr, u32 endAddr, PPCSymbolDB* func_db)
{
// Step 1: Find all functions
FindFunctionsFromBranches(startAddr, endAddr, func_db);
FindFunctionsFromHandlers(func_db);
FindFunctionsAfterReturnInstruction(func_db);
// Step 2: