diff options
Diffstat (limited to 'lib/Support/Host.cpp')
| -rw-r--r-- | lib/Support/Host.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/lib/Support/Host.cpp b/lib/Support/Host.cpp index 1ad7852dd9..f1073ab9b5 100644 --- a/lib/Support/Host.cpp +++ b/lib/Support/Host.cpp @@ -11,7 +11,12 @@ // //===----------------------------------------------------------------------===// +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Support/DataStream.h" +#include "llvm/Support/Debug.h" #include "llvm/Support/Host.h" +#include "llvm/Support/raw_ostream.h" #include "llvm/Config/config.h" #include <string.h> @@ -25,6 +30,12 @@ #ifdef _MSC_VER #include <intrin.h> #endif +#ifdef __APPLE__ +#include <mach/mach.h> +#include <mach/mach_host.h> +#include <mach/host_info.h> +#include <mach/machine.h> +#endif //===----------------------------------------------------------------------===// // @@ -320,6 +331,125 @@ std::string sys::getHostCPUName() { } return "generic"; } +#elif defined(__APPLE__) +std::string sys::getHostCPUName() { + host_basic_info_data_t hostInfo; + mach_msg_type_number_t infoCount; + + infoCount = HOST_BASIC_INFO_COUNT; + host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, + &infoCount); + + if (hostInfo.cpu_type != CPU_TYPE_POWERPC) return "generic"; + + switch(hostInfo.cpu_subtype) { + case CPU_SUBTYPE_POWERPC_601: return "601"; + case CPU_SUBTYPE_POWERPC_602: return "602"; + case CPU_SUBTYPE_POWERPC_603: return "603"; + case CPU_SUBTYPE_POWERPC_603e: return "603e"; + case CPU_SUBTYPE_POWERPC_603ev: return "603ev"; + case CPU_SUBTYPE_POWERPC_604: return "604"; + case CPU_SUBTYPE_POWERPC_604e: return "604e"; + case CPU_SUBTYPE_POWERPC_620: return "620"; + case CPU_SUBTYPE_POWERPC_750: return "750"; + case CPU_SUBTYPE_POWERPC_7400: return "7400"; + case CPU_SUBTYPE_POWERPC_7450: return "7450"; + case CPU_SUBTYPE_POWERPC_970: return "970"; + default: ; + } + + return "generic"; +} +#elif defined(__linux__) && (defined(__ppc__) || defined(__powerpc__)) +std::string sys::getHostCPUName() { + // Access to the Processor Version Register (PVR) on PowerPC is privileged, + // and so we must use an operating-system interface to determine the current + // processor type. On Linux, this is exposed through the /proc/cpuinfo file. + const char *generic = "generic"; + + // 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). + + std::string Err; + DataStreamer *DS = getDataFileStreamer("/proc/cpuinfo", &Err); + if (!DS) { + DEBUG(dbgs() << "Unable to open /proc/cpuinfo: " << Err << "\n"); + return generic; + } + + // The cpu line is second (after the 'processor: 0' line), so if this + // buffer is too small then something has changed (or is wrong). + char buffer[1024]; + size_t CPUInfoSize = DS->GetBytes((unsigned char*) buffer, sizeof(buffer)); + delete DS; + + const char *CPUInfoStart = buffer; + const char *CPUInfoEnd = buffer + CPUInfoSize; + + const char *CIP = CPUInfoStart; + + const char *CPUStart = 0; + size_t CPULen = 0; + + // We need to find the first line which starts with cpu, spaces, and a colon. + // After the colon, there may be some additional spaces and then the cpu type. + while (CIP < CPUInfoEnd && CPUStart == 0) { + if (CIP < CPUInfoEnd && *CIP == '\n') + ++CIP; + + if (CIP < CPUInfoEnd && *CIP == 'c') { + ++CIP; + if (CIP < CPUInfoEnd && *CIP == 'p') { + ++CIP; + if (CIP < CPUInfoEnd && *CIP == 'u') { + ++CIP; + while (CIP < CPUInfoEnd && (*CIP == ' ' || *CIP == '\t')) + ++CIP; + + if (CIP < CPUInfoEnd && *CIP == ':') { + ++CIP; + while (CIP < CPUInfoEnd && (*CIP == ' ' || *CIP == '\t')) + ++CIP; + + if (CIP < CPUInfoEnd) { + CPUStart = CIP; + while (CIP < CPUInfoEnd && (*CIP != ' ' && *CIP != '\t' && + *CIP != ',' && *CIP != '\n')) + ++CIP; + CPULen = CIP - CPUStart; + } + } + } + } + } + + if (CPUStart == 0) + while (CIP < CPUInfoEnd && *CIP != '\n') + ++CIP; + } + + if (CPUStart == 0) + return generic; + + return StringSwitch<const char *>(StringRef(CPUStart, CPULen)) + .Case("604e", "604e") + .Case("604", "604") + .Case("7400", "7400") + .Case("7410", "7400") + .Case("7447", "7400") + .Case("7455", "7450") + .Case("G4", "g4") + .Case("POWER4", "g4") + .Case("PPC970FX", "970") + .Case("PPC970MP", "970") + .Case("G5", "g5") + .Case("POWER5", "g5") + .Case("A2", "a2") + .Case("POWER6", "pwr6") + .Case("POWER7", "pwr7") + .Default(generic); +} #else std::string sys::getHostCPUName() { return "generic"; |