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Porting into OpenBSD (#582)

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This commit is contained in:
Nan Xiao 2018-05-02 18:26:43 +08:00 committed by Dominic Hamon
parent 62a9d756ea
commit ea5551e7b3
2 changed files with 30 additions and 2 deletions
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2
src/internal_macros.h
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@ -51,6 +51,8 @@
#define BENCHMARK_OS_FREEBSD 1 #define BENCHMARK_OS_FREEBSD 1
#elif defined(__NetBSD__) #elif defined(__NetBSD__)
#define BENCHMARK_OS_NETBSD 1 #define BENCHMARK_OS_NETBSD 1
#elif defined(__OpenBSD__)
#define BENCHMARK_OS_OPENBSD 1
#elif defined(__linux__) #elif defined(__linux__)
#define BENCHMARK_OS_LINUX 1 #define BENCHMARK_OS_LINUX 1
#elif defined(__native_client__) #elif defined(__native_client__)

30
src/sysinfo.cc
View File

@ -28,7 +28,7 @@
#include <sys/types.h> // this header must be included before 'sys/sysctl.h' to avoid compilation error on FreeBSD #include <sys/types.h> // this header must be included before 'sys/sysctl.h' to avoid compilation error on FreeBSD
#include <unistd.h> #include <unistd.h>
#if defined BENCHMARK_OS_FREEBSD || defined BENCHMARK_OS_MACOSX || \ #if defined BENCHMARK_OS_FREEBSD || defined BENCHMARK_OS_MACOSX || \
defined BENCHMARK_OS_NETBSD defined BENCHMARK_OS_NETBSD || defined BENCHMARK_OS_OPENBSD
#define BENCHMARK_HAS_SYSCTL #define BENCHMARK_HAS_SYSCTL
#include <sys/sysctl.h> #include <sys/sysctl.h>
#endif #endif
@ -136,6 +136,26 @@ struct ValueUnion {
}; };
ValueUnion GetSysctlImp(std::string const& Name) { ValueUnion GetSysctlImp(std::string const& Name) {
#if defined BENCHMARK_OS_OPENBSD
int mib[2];
mib[0] = CTL_HW;
if ((Name == "hw.ncpu") || (Name == "hw.cpuspeed")){
ValueUnion buff(sizeof(int));
if (Name == "hw.ncpu") {
mib[1] = HW_NCPU;
} else {
mib[1] = HW_CPUSPEED;
}
if (sysctl(mib, 2, buff.data(), &buff.Size, nullptr, 0) == -1) {
return ValueUnion();
}
return buff;
}
return ValueUnion();
#else
size_t CurBuffSize = 0; size_t CurBuffSize = 0;
if (sysctlbyname(Name.c_str(), nullptr, &CurBuffSize, nullptr, 0) == -1) if (sysctlbyname(Name.c_str(), nullptr, &CurBuffSize, nullptr, 0) == -1)
return ValueUnion(); return ValueUnion();
@ -144,6 +164,7 @@ ValueUnion GetSysctlImp(std::string const& Name) {
if (sysctlbyname(Name.c_str(), buff.data(), &buff.Size, nullptr, 0) == 0) if (sysctlbyname(Name.c_str(), buff.data(), &buff.Size, nullptr, 0) == 0)
return buff; return buff;
return ValueUnion(); return ValueUnion();
#endif
} }
BENCHMARK_MAYBE_UNUSED BENCHMARK_MAYBE_UNUSED
@ -488,12 +509,17 @@ double GetCPUCyclesPerSecond() {
constexpr auto* FreqStr = constexpr auto* FreqStr =
#if defined(BENCHMARK_OS_FREEBSD) || defined(BENCHMARK_OS_NETBSD) #if defined(BENCHMARK_OS_FREEBSD) || defined(BENCHMARK_OS_NETBSD)
"machdep.tsc_freq"; "machdep.tsc_freq";
#elif defined BENCHMARK_OS_OPENBSD
"hw.cpuspeed";
#else #else
"hw.cpufrequency"; "hw.cpufrequency";
#endif #endif
unsigned long long hz = 0; unsigned long long hz = 0;
#if defined BENCHMARK_OS_OPENBSD
if (GetSysctl(FreqStr, &hz)) return hz * 1000000;
#else
if (GetSysctl(FreqStr, &hz)) return hz; if (GetSysctl(FreqStr, &hz)) return hz;
#endif
fprintf(stderr, "Unable to determine clock rate from sysctl: %s: %s\n", fprintf(stderr, "Unable to determine clock rate from sysctl: %s: %s\n",
FreqStr, strerror(errno)); FreqStr, strerror(errno));