diff options
Diffstat (limited to 'src/vm/i386/cgenx86.cpp')
| -rw-r--r-- | src/vm/i386/cgenx86.cpp | 79 |
1 files changed, 76 insertions, 3 deletions
diff --git a/src/vm/i386/cgenx86.cpp b/src/vm/i386/cgenx86.cpp index ff2f2df5a3..08ccd01086 100644 --- a/src/vm/i386/cgenx86.cpp +++ b/src/vm/i386/cgenx86.cpp @@ -760,6 +760,7 @@ WORD GetUnpatchedCodeData(LPCBYTE pAddr) #ifndef DACCESS_COMPILE +#if defined(_TARGET_X86_) && !defined(FEATURE_STUBS_AS_IL) //------------------------------------------------------------------------- // One-time creation of special prestub to initialize UMEntryThunks. //------------------------------------------------------------------------- @@ -809,6 +810,7 @@ Stub *GenerateUMThunkPrestub() RETURN psl->Link(SystemDomain::GetGlobalLoaderAllocator()->GetExecutableHeap()); } +#endif // _TARGET_X86_ && !FEATURE_STUBS_AS_IL Stub *GenerateInitPInvokeFrameHelper() { @@ -1593,6 +1595,7 @@ extern "C" VOID STDCALL StubRareDisableTHROWWorker(Thread *pThread) pThread->HandleThreadAbort(); } +#ifndef FEATURE_PAL // Note that this logic is copied below, in PopSEHRecords __declspec(naked) VOID __cdecl PopSEHRecords(LPVOID pTargetSP) @@ -1614,6 +1617,7 @@ VOID __cdecl PopSEHRecords(LPVOID pTargetSP) retn } } +#endif // FEATURE_PAL ////////////////////////////////////////////////////////////////////////////// // @@ -1680,9 +1684,10 @@ void ResumeAtJit(PCONTEXT pContext, LPVOID oldESP) #endif // !EnC_SUPPORTED +#ifndef FEATURE_PAL #pragma warning(push) #pragma warning(disable: 4035) -DWORD getcpuid(DWORD arg, unsigned char result[16]) +extern "C" DWORD __stdcall getcpuid(DWORD arg, unsigned char result[16]) { LIMITED_METHOD_CONTRACT @@ -1709,7 +1714,7 @@ DWORD getcpuid(DWORD arg, unsigned char result[16]) // Arg3 is a pointer to the return buffer // No need to check whether or not CPUID is supported because we have already called CPUID with success to come here. -DWORD getextcpuid(DWORD arg1, DWORD arg2, unsigned char result[16]) +extern "C" DWORD __stdcall getextcpuid(DWORD arg1, DWORD arg2, unsigned char result[16]) { LIMITED_METHOD_CONTRACT @@ -1730,8 +1735,75 @@ DWORD getextcpuid(DWORD arg1, DWORD arg2, unsigned char result[16]) } } +extern "C" DWORD __stdcall xmmYmmStateSupport() +{ + // No CONTRACT + STATIC_CONTRACT_NOTHROW; + STATIC_CONTRACT_GC_NOTRIGGER; + + __asm + { + mov ecx, 0 ; Specify xcr0 + xgetbv ; result in EDX:EAX + and eax, 06H + cmp eax, 06H ; check OS has enabled both XMM and YMM state support + jne not_supported + mov eax, 1 + jmp done + not_supported: + mov eax, 0 + done: + } +} + #pragma warning(pop) +#else // !FEATURE_PAL + +extern "C" DWORD __stdcall getcpuid(DWORD arg, unsigned char result[16]) +{ + DWORD eax; + __asm(" xor %%ecx, %%ecx\n" \ + " cpuid\n" \ + " mov %%eax, 0(%[result])\n" \ + " mov %%ebx, 4(%[result])\n" \ + " mov %%ecx, 8(%[result])\n" \ + " mov %%edx, 12(%[result])\n" \ + : "=a"(eax) /*output in eax*/\ + : "a"(arg), [result]"r"(result) /*inputs - arg in eax, result in any register*/\ + : "eax", "rbx", "ecx", "edx", "memory" /* registers that are clobbered, *result is clobbered */ + ); + return eax; +} + +extern "C" DWORD __stdcall getextcpuid(DWORD arg1, DWORD arg2, unsigned char result[16]) +{ + DWORD eax; + __asm(" cpuid\n" \ + " mov %%eax, 0(%[result])\n" \ + " mov %%ebx, 4(%[result])\n" \ + " mov %%ecx, 8(%[result])\n" \ + " mov %%edx, 12(%[result])\n" \ + : "=a"(eax) /*output in eax*/\ + : "c"(arg1), "a"(arg2), [result]"r"(result) /*inputs - arg1 in ecx, arg2 in eax, result in any register*/\ + : "eax", "rbx", "ecx", "edx", "memory" /* registers that are clobbered, *result is clobbered */ + ); + return eax; +} + +extern "C" DWORD __stdcall xmmYmmStateSupport() +{ + DWORD eax; + __asm(" xgetbv\n" \ + : "=a"(eax) /*output in eax*/\ + : "c"(0) /*inputs - 0 in ecx*/\ + : "eax", "edx" /* registers that are clobbered*/ + ); + // check OS has enabled both XMM and YMM state support + return ((eax & 0x06) == 0x06) ? 1 : 0; +} + +#endif // !FEATURE_PAL // This function returns the number of logical processors on a given physical chip. If it cannot // determine the number of logical cpus, or the machine is not populated uniformly with the same @@ -1761,13 +1833,14 @@ DWORD GetLogicalCpuCount() PAL_TRY(Param *, pParam, ¶m) { unsigned char buffer[16]; + DWORD* dwBuffer = NULL; DWORD maxCpuId = getcpuid(0, buffer); if (maxCpuId < 1) goto lDone; - DWORD* dwBuffer = (DWORD*)buffer; + dwBuffer = (DWORD*)buffer; if (dwBuffer[1] == 'uneG') { if (dwBuffer[3] == 'Ieni') { |