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kern: implement SvcDebugActiveProcess, svcGetDebugEvent, SvcWaitProcessWideKeyAtomic

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This commit is contained in:
Michael Scire
2020-07-18 20:03:27 -07:00
committed by SciresM
parent 1c5b58ce66
commit 36eb78a3ce
17 changed files with 728 additions and 24 deletions
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34
libraries/libmesosphere/source/svc/kern_svc_condition_variable.cpp
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@@ -21,7 +21,37 @@ namespace ams::kern::svc {
namespace {
constexpr bool IsKernelAddress(uintptr_t address) {
return KernelVirtualAddressSpaceBase <= address && address < KernelVirtualAddressSpaceEnd;
}
Result WaitProcessWideKeyAtomic(uintptr_t address, uintptr_t cv_key, uint32_t tag, int64_t timeout_ns) {
/* Validate input. */
R_UNLESS(AMS_LIKELY(!IsKernelAddress(address)), svc::ResultInvalidCurrentMemory());
R_UNLESS(util::IsAligned(address, sizeof(int32_t)), svc::ResultInvalidAddress());
/* Convert timeout from nanoseconds to ticks. */
s64 timeout;
if (timeout_ns > 0) {
const ams::svc::Tick offset_tick(TimeSpan::FromNanoSeconds(timeout_ns));
if (AMS_LIKELY(offset_tick > 0)) {
timeout = KHardwareTimer::GetTick() + offset_tick + 2;
if (AMS_UNLIKELY(timeout <= 0)) {
timeout = std::numeric_limits<s64>::max();
}
} else {
timeout = std::numeric_limits<s64>::max();
}
} else {
timeout = timeout_ns;
}
/* Wait on the condition variable. */
return GetCurrentProcess().WaitConditionVariable(address, util::AlignDown(cv_key, sizeof(u32)), tag, timeout);
}
void SignalProcessWideKey(uintptr_t cv_key, int32_t count) {
/* Signal the condition variable. */
return GetCurrentProcess().SignalConditionVariable(util::AlignDown(cv_key, sizeof(u32)), count);
}
@@ -30,7 +60,7 @@ namespace ams::kern::svc {
/* ============================= 64 ABI ============================= */
Result WaitProcessWideKeyAtomic64(ams::svc::Address address, ams::svc::Address cv_key, uint32_t tag, int64_t timeout_ns) {
MESOSPHERE_PANIC("Stubbed SvcWaitProcessWideKeyAtomic64 was called.");
return WaitProcessWideKeyAtomic(address, cv_key, tag, timeout_ns);
}
void SignalProcessWideKey64(ams::svc::Address cv_key, int32_t count) {
@@ -40,7 +70,7 @@ namespace ams::kern::svc {
/* ============================= 64From32 ABI ============================= */
Result WaitProcessWideKeyAtomic64From32(ams::svc::Address address, ams::svc::Address cv_key, uint32_t tag, int64_t timeout_ns) {
MESOSPHERE_PANIC("Stubbed SvcWaitProcessWideKeyAtomic64From32 was called.");
return WaitProcessWideKeyAtomic(address, cv_key, tag, timeout_ns);
}
void SignalProcessWideKey64From32(ams::svc::Address cv_key, int32_t count) {