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--trace_functions and --trace_function_coverage

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This commit is contained in:
Ben Vanik
2015-05-05 22:44:36 -07:00
parent ade5388728
commit 94c62b91d0
24 changed files with 365 additions and 82 deletions
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13
src/xenia/cpu/frontend/ppc_scanner.cc
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@@ -53,6 +53,10 @@ bool PPCScanner::Scan(FunctionInfo* symbol_info, DebugInfo* debug_info) {
LOGPPC("Analyzing function %.8X...", symbol_info->address());
// For debug info, only if needed.
uint32_t address_reference_count = 0;
uint32_t instruction_result_count = 0;
uint32_t start_address = static_cast<uint32_t>(symbol_info->address());
uint32_t end_address = static_cast<uint32_t>(symbol_info->end_address());
uint32_t address = start_address;
@@ -78,6 +82,10 @@ bool PPCScanner::Scan(FunctionInfo* symbol_info, DebugInfo* debug_info) {
// This lookup is *expensive* and should be avoided when scanning.
i.type = GetInstrType(i.code);
// TODO(benvanik): switch on instruction metadata.
++address_reference_count;
++instruction_result_count;
// Check if the function starts with a mfspr lr, as that's a good indication
// of whether or not this is a normal function with a prolog/epilog.
// Some valid leaf functions won't have this, but most will.
@@ -274,6 +282,11 @@ bool PPCScanner::Scan(FunctionInfo* symbol_info, DebugInfo* debug_info) {
// - if present, flag function as needing a stack
// - record prolog/epilog lengths/stack size/etc
if (debug_info) {
debug_info->set_address_reference_count(address_reference_count);
debug_info->set_instruction_result_count(instruction_result_count);
}
LOGPPC("Finished analyzing %.8X", start_address);
return true;
}