diff options
Diffstat (limited to 'llvm/lib/Support/Host.cpp')
| -rw-r--r-- | llvm/lib/Support/Host.cpp | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp index 1ca8eac..5962e5e 100644 --- a/llvm/lib/Support/Host.cpp +++ b/llvm/lib/Support/Host.cpp @@ -19,8 +19,8 @@ #include "llvm/Config/config.h" #include "llvm/Support/Debug.h" #include "llvm/Support/FileSystem.h" -#include "llvm/Support/raw_ostream.h" -#include <string.h> +#include <cstring> +#include <string> // Include the platform-specific parts of this class. #ifdef LLVM_ON_UNIX @@ -49,8 +49,10 @@ using namespace llvm; +namespace { + #if defined(__linux__) -static ssize_t LLVM_ATTRIBUTE_UNUSED readCpuInfo(void *Buf, size_t Size) { +ssize_t LLVM_ATTRIBUTE_UNUSED readCpuInfo(void *Buf, size_t Size) { // Note: We cannot mmap /proc/cpuinfo here and then process the resulting // memory buffer because the 'file' has 0 size (it can be read from only // as a stream). @@ -74,8 +76,8 @@ static ssize_t LLVM_ATTRIBUTE_UNUSED readCpuInfo(void *Buf, size_t Size) { /// GetX86CpuIDAndInfo - Execute the specified cpuid and return the 4 values in the /// specified arguments. If we can't run cpuid on the host, return true. -static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX, - unsigned *rECX, unsigned *rEDX) { +bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX, + unsigned *rECX, unsigned *rEDX) { #if defined(__GNUC__) || defined(__clang__) #if defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64) // gcc doesn't know cpuid would clobber ebx/rbx. Preseve it manually. @@ -120,9 +122,8 @@ static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX, /// GetX86CpuIDAndInfoEx - Execute the specified cpuid with subleaf and return the /// 4 values in the specified arguments. If we can't run cpuid on the host, /// return true. -static bool GetX86CpuIDAndInfoEx(unsigned value, unsigned subleaf, - unsigned *rEAX, unsigned *rEBX, unsigned *rECX, - unsigned *rEDX) { +bool GetX86CpuIDAndInfoEx(unsigned value, unsigned subleaf, unsigned *rEAX, + unsigned *rEBX, unsigned *rECX, unsigned *rEDX) { #if defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64) #if defined(__GNUC__) // gcc doesn't know cpuid would clobber ebx/rbx. Preseve it manually. @@ -182,7 +183,7 @@ static bool GetX86CpuIDAndInfoEx(unsigned value, unsigned subleaf, #endif } -static bool GetX86XCR0(unsigned *rEAX, unsigned *rEDX) { +bool GetX86XCR0(unsigned *rEAX, unsigned *rEDX) { #if defined(__GNUC__) // Check xgetbv; this uses a .byte sequence instead of the instruction // directly because older assemblers do not include support for xgetbv and @@ -199,8 +200,7 @@ static bool GetX86XCR0(unsigned *rEAX, unsigned *rEDX) { #endif } -static void DetectX86FamilyModel(unsigned EAX, unsigned &Family, - unsigned &Model) { +void DetectX86FamilyModel(unsigned EAX, unsigned &Family, unsigned &Model) { Family = (EAX >> 8) & 0xf; // Bits 8 - 11 Model = (EAX >> 4) & 0xf; // Bits 4 - 7 if (Family == 6 || Family == 0xf) { @@ -212,6 +212,8 @@ static void DetectX86FamilyModel(unsigned EAX, unsigned &Family, } } +} // end anonymous namespace + StringRef sys::getHostCPUName() { unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0; if (GetX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX)) |