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// Copyright 2020 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/Debug/OSThread.h"
#include <algorithm>
#include <fmt/format.h>
#include "Core/PowerPC/MMU.h"
// Context offsets based on the following functions:
// - OSSaveContext
// - OSSaveFPUContext
// - OSDumpContext
// - OSClearContext
// - OSExceptionVector
void Common::Debug::OSContext::Read(u32 addr)
{
for (std::size_t i = 0; i < gpr.size(); i++)
gpr[i] = PowerPC::HostRead_U32(addr + u32(i * sizeof(int)));
cr = PowerPC::HostRead_U32(addr + 0x80);
lr = PowerPC::HostRead_U32(addr + 0x84);
ctr = PowerPC::HostRead_U32(addr + 0x88);
xer = PowerPC::HostRead_U32(addr + 0x8C);
for (std::size_t i = 0; i < fpr.size(); i++)
fpr[i] = PowerPC::HostRead_F64(addr + 0x90 + u32(i * sizeof(double)));
fpscr = PowerPC::HostRead_U64(addr + 0x190);
srr0 = PowerPC::HostRead_U32(addr + 0x198);
srr1 = PowerPC::HostRead_U32(addr + 0x19c);
dummy = PowerPC::HostRead_U16(addr + 0x1a0);
state = static_cast<OSContext::State>(PowerPC::HostRead_U16(addr + 0x1a2));
for (std::size_t i = 0; i < gqr.size(); i++)
gqr[i] = PowerPC::HostRead_U32(addr + 0x1a4 + u32(i * sizeof(int)));
psf_padding = 0;
for (std::size_t i = 0; i < psf.size(); i++)
psf[i] = PowerPC::HostRead_F64(addr + 0x1c8 + u32(i * sizeof(double)));
}
// Mutex offsets based on the following functions:
// - OSInitMutex
// - OSLockMutex
// - __OSUnlockAllMutex
void Common::Debug::OSMutex::Read(u32 addr)
{
thread_queue.head = PowerPC::HostRead_U32(addr);
thread_queue.tail = PowerPC::HostRead_U32(addr + 0x4);
owner_addr = PowerPC::HostRead_U32(addr + 0x8);
lock_count = PowerPC::HostRead_U32(addr + 0xc);
link.next = PowerPC::HostRead_U32(addr + 0x10);
link.prev = PowerPC::HostRead_U32(addr + 0x14);
}
// Thread offsets based on the following functions:
// - OSCreateThread
// - OSIsThreadTerminated
// - OSJoinThread
// - OSSuspendThread
// - OSSetPriority
// - OSExitThread
// - OSLockMutex
// - __OSUnlockAllMutex
// - __OSThreadInit
// - OSSetThreadSpecific
// - SOInit (for errno)
void Common::Debug::OSThread::Read(u32 addr)
{
context.Read(addr);
state = PowerPC::HostRead_U16(addr + 0x2c8);
is_detached = PowerPC::HostRead_U16(addr + 0x2ca);
suspend = PowerPC::HostRead_U32(addr + 0x2cc);
effective_priority = PowerPC::HostRead_U32(addr + 0x2d0);
base_priority = PowerPC::HostRead_U32(addr + 0x2d4);
exit_code_addr = PowerPC::HostRead_U32(addr + 0x2d8);
queue_addr = PowerPC::HostRead_U32(addr + 0x2dc);
queue_link.next = PowerPC::HostRead_U32(addr + 0x2e0);
queue_link.prev = PowerPC::HostRead_U32(addr + 0x2e4);
join_queue.head = PowerPC::HostRead_U32(addr + 0x2e8);
join_queue.tail = PowerPC::HostRead_U32(addr + 0x2ec);
mutex_addr = PowerPC::HostRead_U32(addr + 0x2f0);
mutex_queue.head = PowerPC::HostRead_U32(addr + 0x2f4);
mutex_queue.tail = PowerPC::HostRead_U32(addr + 0x2f8);
thread_link.next = PowerPC::HostRead_U32(addr + 0x2fc);
thread_link.prev = PowerPC::HostRead_U32(addr + 0x300);
stack_addr = PowerPC::HostRead_U32(addr + 0x304);
stack_end = PowerPC::HostRead_U32(addr + 0x308);
error = PowerPC::HostRead_U32(addr + 0x30c);
specific[0] = PowerPC::HostRead_U32(addr + 0x310);
specific[1] = PowerPC::HostRead_U32(addr + 0x314);
}
bool Common::Debug::OSThread::IsValid() const
{
return PowerPC::HostIsRAMAddress(stack_end) && PowerPC::HostRead_U32(stack_end) == STACK_MAGIC;
}
Common::Debug::OSThreadView::OSThreadView(u32 addr)
{
m_address = addr;
m_thread.Read(addr);
}
const Common::Debug::OSThread& Common::Debug::OSThreadView::Data() const
{
return m_thread;
}
Common::Debug::PartialContext Common::Debug::OSThreadView::GetContext() const
{
PartialContext context;
if (!IsValid())
return context;
context.gpr = m_thread.context.gpr;
context.cr = m_thread.context.cr;
context.lr = m_thread.context.lr;
context.ctr = m_thread.context.ctr;
context.xer = m_thread.context.xer;
context.fpr = m_thread.context.fpr;
context.fpscr = m_thread.context.fpscr;
context.srr0 = m_thread.context.srr0;
context.srr1 = m_thread.context.srr1;
context.dummy = m_thread.context.dummy;
context.state = static_cast<u16>(m_thread.context.state);
context.gqr = m_thread.context.gqr;
context.psf = m_thread.context.psf;
return context;
}
u32 Common::Debug::OSThreadView::GetAddress() const
{
return m_address;
}
u16 Common::Debug::OSThreadView::GetState() const
{
return m_thread.state;
}
bool Common::Debug::OSThreadView::IsSuspended() const
{
return m_thread.suspend > 0;
}
bool Common::Debug::OSThreadView::IsDetached() const
{
return m_thread.is_detached != 0;
}
s32 Common::Debug::OSThreadView::GetBasePriority() const
{
return m_thread.base_priority;
}
s32 Common::Debug::OSThreadView::GetEffectivePriority() const
{
return m_thread.effective_priority;
}
u32 Common::Debug::OSThreadView::GetStackStart() const
{
return m_thread.stack_addr;
}
u32 Common::Debug::OSThreadView::GetStackEnd() const
{
return m_thread.stack_end;
}
std::size_t Common::Debug::OSThreadView::GetStackSize() const
{
return GetStackStart() - GetStackEnd();
}
s32 Common::Debug::OSThreadView::GetErrno() const
{
return m_thread.error;
}
std::string Common::Debug::OSThreadView::GetSpecific() const
{
std::string specific;
for (u32 addr : m_thread.specific)
{
if (!PowerPC::HostIsRAMAddress(addr))
break;
specific += fmt::format("{:08x} \"{}\"\n", addr, PowerPC::HostGetString(addr));
}
return specific;
}
bool Common::Debug::OSThreadView::IsValid() const
{
return m_thread.IsValid();
}
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