From a2fd65a1e9a711fae0734bdb539aae617115bd30 Mon Sep 17 00:00:00 2001
From: gcontini <1121667+gcontini@users.noreply.github.com>
Date: 周三, 14 10月 2020 22:31:25 +0800
Subject: [PATCH] add debug
---
src/library/os/linux/cpu_info.cpp | 38 +++++++++++++++++++++++++++++---------
1 files changed, 29 insertions(+), 9 deletions(-)
diff --git a/src/library/os/linux/cpu_info.cpp b/src/library/os/linux/cpu_info.cpp
index 4b5ff85..37620cb 100644
--- a/src/library/os/linux/cpu_info.cpp
+++ b/src/library/os/linux/cpu_info.cpp
@@ -8,9 +8,11 @@
#include <cpuid.h>
#include <string>
#include <unordered_set>
+#include <memory.h>
#include "../cpu_info.hpp"
namespace license {
+namespace os {
using namespace std;
struct CPUVendorID {
@@ -21,7 +23,32 @@
string toString() const { return string(reinterpret_cast<const char *>(this), 12); }
};
-CpuInfo::CpuInfo() {}
+static string get_cpu_vendor() {
+ unsigned int level = 0, eax = 0, ebx = 0, ecx = 0, edx = 0;
+ // hypervisor flag false, try to get the vendor name, see if it's a virtual cpu
+ __get_cpuid(level, &eax, &ebx, &ecx, &edx);
+ CPUVendorID vendorID{.ebx = ebx, .edx = edx, .ecx = ecx};
+ return vendorID.toString();
+}
+
+// https://en.wikipedia.org/wiki/CPUID
+static string get_cpu_brand() {
+ string result;
+ uint32_t brand[0x10];
+
+ if (!__get_cpuid_max(0x80000004, NULL)) {
+ result = "NA";
+ } else {
+ memset(brand, 0, sizeof(brand));
+ __get_cpuid(0x80000002, brand + 0x0, brand + 0x1, brand + 0x2, brand + 0x3);
+ __get_cpuid(0x80000003, brand + 0x4, brand + 0x5, brand + 0x6, brand + 0x7);
+ __get_cpuid(0x80000004, brand + 0x8, brand + 0x9, brand + 0xa, brand + 0xb);
+ result = string(reinterpret_cast<char *>(brand));
+ }
+ return result;
+}
+
+CpuInfo::CpuInfo() : m_vendor(get_cpu_vendor()), m_brand(get_cpu_brand()) {}
CpuInfo::~CpuInfo() {}
/**
@@ -45,12 +72,5 @@
return (eax & 0x3FFF) | (eax & 0x3FF8000) >> 2 | (ebx & 0xff) << 24;
}
-string CpuInfo::vendor() const {
- unsigned int level = 0, eax = 0, ebx = 0, ecx = 0, edx = 0;
- // hypervisor flag false, try to get the vendor name, see if it's a virtual cpu
- __get_cpuid(level, &eax, &ebx, &ecx, &edx);
- CPUVendorID vendorID{.ebx = ebx, .edx = edx, .ecx = ecx};
- return vendorID.toString();
-}
-
+} // namespace os
} /* namespace license */
--
Gitblit v1.9.1