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TLS for ARMv7 threads

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This commit is contained in:
Nekotekina 2015-01-31 19:44:26 +03:00
parent 12d1f8202d
commit 61a5459ccb
9 changed files with 115 additions and 64 deletions
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28
rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
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@ -23,12 +23,10 @@
Module *sysPrxForUser = nullptr;
u32 g_tls_size; // size of every thread's storage
u32 g_tls_start; // start of TLS memory area
u32 g_tls_image_addr; // address of TLS initialization area
u32 g_tls_image_size; // size of TLS initialization area
#define TLS_MAX 128
u32 g_tls_start; // start of TLS memory area
const u32 TLS_MAX = 256;
std::array<std::atomic<u32>, TLS_MAX> g_tls_owners;
void sys_initialize_tls()
@ -40,19 +38,16 @@ u32 ppu_get_tls(u32 thread)
{
if (!g_tls_start)
{
g_tls_size = vm::cast(Emu.GetTLSMemsz(), "Emu.GetTLSMemsz"); // (not an address for vm::cast, but fine)
g_tls_start = vm::cast(Memory.Alloc(g_tls_size * TLS_MAX, 4096)); // memory for up to TLS_MAX threads
g_tls_image_addr = vm::cast(Emu.GetTLSAddr(), "Emu.GetTLSAddr");
g_tls_image_size = vm::cast(Emu.GetTLSFilesz(), "Emu.GetTLSFilesz");
sysPrxForUser->Warning("TLS initialized (g_tls_size=0x%x, g_tls_start=0x%x, g_tls_image_addr=0x%x, g_tls_image_size=0x%x)", g_tls_size, g_tls_start, g_tls_image_addr, g_tls_image_size);
g_tls_start = vm::cast(Memory.MainMem.AllocAlign(Emu.GetTLSMemsz() * TLS_MAX, 4096)); // memory for up to TLS_MAX threads
sysPrxForUser->Notice("Thread Local Storage initialized (g_tls_start=0x%x, size = 0x%x)\n*** TLS segment addr: 0x%08x\n*** TLS segment size: 0x%08x",
g_tls_start, Emu.GetTLSMemsz(), Emu.GetTLSAddr(), Emu.GetTLSFilesz());
}
for (u32 i = 0; i < TLS_MAX; i++)
{
if (g_tls_owners[i] == thread)
{
return g_tls_start + i * g_tls_size; // if already initialized, return TLS address
return g_tls_start + i * Emu.GetTLSMemsz(); // if already initialized, return TLS address
}
}
@ -61,9 +56,9 @@ u32 ppu_get_tls(u32 thread)
u32 old = 0;
if (g_tls_owners[i].compare_exchange_strong(old, thread))
{
const u32 addr = g_tls_start + i * g_tls_size; // get TLS address
memset(vm::get_ptr(addr), 0, g_tls_size); // fill TLS area with zeros
memcpy(vm::get_ptr(addr), vm::get_ptr(g_tls_image_addr), g_tls_image_size); // initialize from TLS image
const u32 addr = g_tls_start + i * Emu.GetTLSMemsz(); // get TLS address
memset(vm::get_ptr(addr), 0, Emu.GetTLSMemsz()); // fill TLS area with zeros
memcpy(vm::get_ptr(addr), vm::get_ptr(Emu.GetTLSAddr()), Emu.GetTLSFilesz()); // initialize from TLS image
return addr;
}
}
@ -420,10 +415,7 @@ void sysPrxForUser_init(Module *pxThis)
{
sysPrxForUser = pxThis;
g_tls_size = 0;
g_tls_start = 0;
g_tls_image_addr = 0;
g_tls_image_size = 0;
for (auto& v : g_tls_owners)
{
v.store(0, std::memory_order_relaxed);