mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-30 07:42:13 +00:00
176 lines
7.3 KiB
C++
176 lines
7.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern::svc {
|
|
|
|
/* ============================= Common ============================= */
|
|
|
|
namespace {
|
|
|
|
Result GetLastThreadInfoImpl(ams::svc::LastThreadContext *out_context, uintptr_t *out_tls_address, uint32_t *out_flags) {
|
|
/* Disable interrupts. */
|
|
KScopedInterruptDisable di;
|
|
|
|
/* Get the previous thread. */
|
|
KThread *prev_thread = Kernel::GetScheduler().GetPreviousThread();
|
|
R_UNLESS(prev_thread != nullptr, svc::ResultNoThread());
|
|
|
|
/* Verify the last thread was owned by the current process. */
|
|
R_UNLESS(prev_thread->GetOwnerProcess() == GetCurrentProcessPointer(), svc::ResultUnknownThread());
|
|
|
|
/* Clear the output flags. */
|
|
*out_flags = 0;
|
|
|
|
/* Get the thread's exception context. */
|
|
GetExceptionContext(prev_thread)->GetSvcThreadContext(out_context);
|
|
|
|
/* Get the tls address. */
|
|
*out_tls_address = GetInteger(prev_thread->GetThreadLocalRegionAddress());
|
|
|
|
/* Set the syscall flag if appropriate. */
|
|
if (prev_thread->IsCallingSvc()) {
|
|
*out_flags |= ams::svc::LastThreadInfoFlag_ThreadInSystemCall;
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result SynchronizeCurrentProcessToFutureTime(int64_t ns) {
|
|
/* Get the wait object. */
|
|
KWaitObject *wait_object = GetCurrentProcess().GetWaitObjectPointer();
|
|
|
|
/* Convert the timeout from nanoseconds to ticks. */
|
|
s64 timeout;
|
|
if (ns > 0) {
|
|
u64 ticks = KHardwareTimer::GetTick();
|
|
ticks += ams::svc::Tick(TimeSpan::FromNanoSeconds(ns));
|
|
ticks += 2;
|
|
|
|
timeout = ticks;
|
|
} else {
|
|
timeout = ns;
|
|
}
|
|
|
|
/* Synchronize to the desired time. */
|
|
R_TRY(wait_object->Synchronize(timeout));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result GetDebugFutureThreadInfo(ams::svc::LastThreadContext *out_context, uint64_t *out_thread_id, ams::svc::Handle debug_handle, int64_t ns) {
|
|
/* Only allow invoking the svc on development hardware. */
|
|
R_UNLESS(KTargetSystem::IsDebugMode(), svc::ResultNoThread());
|
|
|
|
/* Get the debug object. */
|
|
KScopedAutoObject debug = GetCurrentProcess().GetHandleTable().GetObject<KDebug>(debug_handle);
|
|
R_UNLESS(debug.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Synchronize the current process to the desired time. */
|
|
R_TRY(SynchronizeCurrentProcessToFutureTime(ns));
|
|
|
|
/* Get the running thread info. */
|
|
R_TRY(debug->GetRunningThreadInfo(out_context, out_thread_id));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result LegacyGetFutureThreadInfo(ams::svc::LastThreadContext *out_context, uintptr_t *out_tls_address, uint32_t *out_flags, int64_t ns) {
|
|
/* Only allow invoking the svc on development hardware. */
|
|
R_UNLESS(KTargetSystem::IsDebugMode(), svc::ResultNoThread());
|
|
|
|
/* Synchronize the current process to the desired time. */
|
|
R_TRY(SynchronizeCurrentProcessToFutureTime(ns));
|
|
|
|
/* Get the thread info. */
|
|
R_TRY(GetLastThreadInfoImpl(out_context, out_tls_address, out_flags));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result GetLastThreadInfo(ams::svc::LastThreadContext *out_context, uintptr_t *out_tls_address, uint32_t *out_flags) {
|
|
/* Only allow invoking the svc on development hardware. */
|
|
R_UNLESS(KTargetSystem::IsDebugMode(), svc::ResultNoThread());
|
|
|
|
/* Get the thread info. */
|
|
R_TRY(GetLastThreadInfoImpl(out_context, out_tls_address, out_flags));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|
|
|
|
/* ============================= 64 ABI ============================= */
|
|
|
|
Result GetDebugFutureThreadInfo64(ams::svc::lp64::LastThreadContext *out_context, uint64_t *out_thread_id, ams::svc::Handle debug_handle, int64_t ns) {
|
|
return GetDebugFutureThreadInfo(out_context, out_thread_id, debug_handle, ns);
|
|
}
|
|
|
|
Result LegacyGetFutureThreadInfo64(ams::svc::lp64::LastThreadContext *out_context, ams::svc::Address *out_tls_address, uint32_t *out_flags, int64_t ns) {
|
|
return LegacyGetFutureThreadInfo(out_context, reinterpret_cast<uintptr_t *>(out_tls_address), out_flags, ns);
|
|
}
|
|
|
|
Result GetLastThreadInfo64(ams::svc::lp64::LastThreadContext *out_context, ams::svc::Address *out_tls_address, uint32_t *out_flags) {
|
|
static_assert(sizeof(*out_tls_address) == sizeof(uintptr_t));
|
|
return GetLastThreadInfo(out_context, reinterpret_cast<uintptr_t *>(out_tls_address), out_flags);
|
|
}
|
|
|
|
/* ============================= 64From32 ABI ============================= */
|
|
|
|
Result GetDebugFutureThreadInfo64From32(ams::svc::ilp32::LastThreadContext *out_context, uint64_t *out_thread_id, ams::svc::Handle debug_handle, int64_t ns) {
|
|
ams::svc::LastThreadContext context = {};
|
|
R_TRY(GetDebugFutureThreadInfo(std::addressof(context), out_thread_id, debug_handle, ns));
|
|
|
|
*out_context = {
|
|
.fp = static_cast<u32>(context.fp),
|
|
.sp = static_cast<u32>(context.sp),
|
|
.lr = static_cast<u32>(context.lr),
|
|
.pc = static_cast<u32>(context.pc),
|
|
};
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result LegacyGetFutureThreadInfo64From32(ams::svc::ilp32::LastThreadContext *out_context, ams::svc::Address *out_tls_address, uint32_t *out_flags, int64_t ns) {
|
|
static_assert(sizeof(*out_tls_address) == sizeof(uintptr_t));
|
|
|
|
ams::svc::LastThreadContext context = {};
|
|
R_TRY(LegacyGetFutureThreadInfo(std::addressof(context), reinterpret_cast<uintptr_t *>(out_tls_address), out_flags, ns));
|
|
|
|
*out_context = {
|
|
.fp = static_cast<u32>(context.fp),
|
|
.sp = static_cast<u32>(context.sp),
|
|
.lr = static_cast<u32>(context.lr),
|
|
.pc = static_cast<u32>(context.pc),
|
|
};
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result GetLastThreadInfo64From32(ams::svc::ilp32::LastThreadContext *out_context, ams::svc::Address *out_tls_address, uint32_t *out_flags) {
|
|
static_assert(sizeof(*out_tls_address) == sizeof(uintptr_t));
|
|
|
|
ams::svc::LastThreadContext context = {};
|
|
R_TRY(GetLastThreadInfo(std::addressof(context), reinterpret_cast<uintptr_t *>(out_tls_address), out_flags));
|
|
|
|
*out_context = {
|
|
.fp = static_cast<u32>(context.fp),
|
|
.sp = static_cast<u32>(context.sp),
|
|
.lr = static_cast<u32>(context.lr),
|
|
.pc = static_cast<u32>(context.pc),
|
|
};
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|