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Merge pull request #8432 from liamwhite/watchpoint

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core/debugger: memory breakpoint support
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bunnei 2022-06-21 16:04:57 -07:00 • committed by GitHub
commit 737c446fc1
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19 changed files with 520 additions and 64 deletions
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46
src/core/hle/kernel/k_process.cpp
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@ -579,6 +579,52 @@ ResultCode KProcess::DeleteThreadLocalRegion(VAddr addr) {
return ResultSuccess;
}
bool KProcess::InsertWatchpoint(Core::System& system, VAddr addr, u64 size,
DebugWatchpointType type) {
const auto watch{std::find_if(watchpoints.begin(), watchpoints.end(), [&](const auto& wp) {
return wp.type == DebugWatchpointType::None;
})};
if (watch == watchpoints.end()) {
return false;
}
watch->start_address = addr;
watch->end_address = addr + size;
watch->type = type;
for (VAddr page = Common::AlignDown(addr, PageSize); page < addr + size; page += PageSize) {
debug_page_refcounts[page]++;
system.Memory().MarkRegionDebug(page, PageSize, true);
}
return true;
}
bool KProcess::RemoveWatchpoint(Core::System& system, VAddr addr, u64 size,
DebugWatchpointType type) {
const auto watch{std::find_if(watchpoints.begin(), watchpoints.end(), [&](const auto& wp) {
return wp.start_address == addr && wp.end_address == addr + size && wp.type == type;
})};
if (watch == watchpoints.end()) {
return false;
}
watch->start_address = 0;
watch->end_address = 0;
watch->type = DebugWatchpointType::None;
for (VAddr page = Common::AlignDown(addr, PageSize); page < addr + size; page += PageSize) {
debug_page_refcounts[page]--;
if (!debug_page_refcounts[page]) {
system.Memory().MarkRegionDebug(page, PageSize, false);
}
}
return true;
}
void KProcess::LoadModule(CodeSet code_set, VAddr base_addr) {
const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
Svc::MemoryPermission permission) {