Merge pull request #455 from lioncash/arm-cpudetect-fix
Stringify ArmCPUDetect.cpp.
This commit is contained in:
Ryan Houdek
commit
3a06907653
|
|
@ -2,34 +2,37 @@
|
|||
// Licensed under GPLv2
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#include <fstream>
|
||||
#include <sstream>
|
||||
#include <string>
|
||||
|
||||
#include "Common/Common.h"
|
||||
#include "Common/CPUDetect.h"
|
||||
#include "Common/FileUtil.h"
|
||||
#include "Common/StringUtil.h"
|
||||
|
||||
// Only Linux platforms have /proc/cpuinfo
|
||||
#if !defined(BLACKBERRY) && !defined(IOS) && !defined(__SYMBIAN32__)
|
||||
const char procfile[] = "/proc/cpuinfo";
|
||||
|
||||
char *GetCPUString()
|
||||
std::string GetCPUString()
|
||||
{
|
||||
const char marker[] = "Hardware\t: ";
|
||||
char *cpu_string = nullptr;
|
||||
// Count the number of processor lines in /proc/cpuinfo
|
||||
char buf[1024];
|
||||
const std::string marker = "Hardware\t: ";
|
||||
std::string cpu_string = "Unknown";
|
||||
|
||||
File::IOFile file(procfile, "r");
|
||||
auto const fp = file.GetHandle();
|
||||
if (!fp)
|
||||
return 0;
|
||||
std::string line;
|
||||
std::ifstream file(procfile);
|
||||
|
||||
while (fgets(buf, sizeof(buf), fp))
|
||||
if (!file)
|
||||
return cpu_string;
|
||||
|
||||
while (std::getline(file, line))
|
||||
{
|
||||
if (strncmp(buf, marker, sizeof(marker) - 1))
|
||||
continue;
|
||||
cpu_string = buf + sizeof(marker) - 1;
|
||||
cpu_string = strndup(cpu_string, strlen(cpu_string) - 1); // Strip the newline
|
||||
break;
|
||||
if (line.find(marker) != std::string::npos)
|
||||
{
|
||||
cpu_string = line.substr(marker.length());
|
||||
cpu_string.pop_back(); // Drop the new-line character
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return cpu_string;
|
||||
|
|
@ -37,79 +40,74 @@ char *GetCPUString()
|
|||
|
||||
unsigned char GetCPUImplementer()
|
||||
{
|
||||
const char marker[] = "CPU implementer\t: ";
|
||||
char *implementer_string = nullptr;
|
||||
const std::string marker = "CPU implementer\t: ";
|
||||
unsigned char implementer = 0;
|
||||
char buf[1024];
|
||||
|
||||
File::IOFile file(procfile, "r");
|
||||
auto const fp = file.GetHandle();
|
||||
if (!fp)
|
||||
std::string line;
|
||||
std::ifstream file(procfile);
|
||||
|
||||
if (!file)
|
||||
return 0;
|
||||
|
||||
while (fgets(buf, sizeof(buf), fp))
|
||||
while (std::getline(file, line))
|
||||
{
|
||||
if (strncmp(buf, marker, sizeof(marker) - 1))
|
||||
continue;
|
||||
implementer_string = buf + sizeof(marker) - 1;
|
||||
implementer_string = strndup(implementer_string, strlen(implementer_string) - 1); // Strip the newline
|
||||
sscanf(implementer_string, "0x%02hhx", &implementer);
|
||||
break;
|
||||
if (line.find(marker) != std::string::npos)
|
||||
{
|
||||
line = line.substr(marker.length());
|
||||
sscanf(line.c_str(), "0x%02hhx", &implementer);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
free(implementer_string);
|
||||
|
||||
return implementer;
|
||||
}
|
||||
|
||||
unsigned short GetCPUPart()
|
||||
{
|
||||
const char marker[] = "CPU part\t: ";
|
||||
char *part_string = nullptr;
|
||||
const std::string marker = "CPU part\t: ";
|
||||
unsigned short part = 0;
|
||||
char buf[1024];
|
||||
|
||||
File::IOFile file(procfile, "r");
|
||||
auto const fp = file.GetHandle();
|
||||
if (!fp)
|
||||
std::string line;
|
||||
std::ifstream file(procfile);
|
||||
|
||||
if (!file)
|
||||
return 0;
|
||||
|
||||
while (fgets(buf, sizeof(buf), fp))
|
||||
while (std::getline(file, line))
|
||||
{
|
||||
if (strncmp(buf, marker, sizeof(marker) - 1))
|
||||
continue;
|
||||
part_string = buf + sizeof(marker) - 1;
|
||||
part_string = strndup(part_string, strlen(part_string) - 1); // Strip the newline
|
||||
sscanf(part_string, "0x%03hx", &part);
|
||||
break;
|
||||
if (line.find(marker) != std::string::npos)
|
||||
{
|
||||
line = line.substr(marker.length());
|
||||
sscanf(line.c_str(), "0x%03hx", &part);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
free(part_string);
|
||||
|
||||
return part;
|
||||
}
|
||||
|
||||
bool CheckCPUFeature(const char *feature)
|
||||
bool CheckCPUFeature(const std::string& feature)
|
||||
{
|
||||
const char marker[] = "Features\t: ";
|
||||
char buf[1024];
|
||||
const std::string marker = "Features\t: ";
|
||||
|
||||
File::IOFile file(procfile, "r");
|
||||
auto const fp = file.GetHandle();
|
||||
if (!fp)
|
||||
std::string line;
|
||||
std::ifstream file(procfile);
|
||||
|
||||
if (!file)
|
||||
return 0;
|
||||
|
||||
while (fgets(buf, sizeof(buf), fp))
|
||||
while (std::getline(file, line))
|
||||
{
|
||||
if (strncmp(buf, marker, sizeof(marker) - 1))
|
||||
continue;
|
||||
char *featurestring = buf + sizeof(marker) - 1;
|
||||
char *token = strtok(featurestring, " ");
|
||||
while (token != nullptr)
|
||||
if (line.find(marker) != std::string::npos)
|
||||
{
|
||||
if (strstr(token, feature))
|
||||
return true;
|
||||
token = strtok(nullptr, " ");
|
||||
std::stringstream line_stream(line);
|
||||
std::string token;
|
||||
|
||||
while (std::getline(line_stream, token, ' '))
|
||||
{
|
||||
if (token == feature)
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -124,20 +122,21 @@ int GetCoreCount()
|
|||
#elif defined(BLACKBERRY) || defined(IOS)
|
||||
return 2;
|
||||
#else
|
||||
const char marker[] = "processor\t: ";
|
||||
const std::string marker = "processor\t: ";
|
||||
int cores = 0;
|
||||
char buf[1024];
|
||||
|
||||
File::IOFile file(procfile, "r");
|
||||
auto const fp = file.GetHandle();
|
||||
if (!fp)
|
||||
std::string line;
|
||||
std::ifstream file(procfile);
|
||||
|
||||
if (!file)
|
||||
return 0;
|
||||
|
||||
while (fgets(buf, sizeof(buf), fp))
|
||||
while (std::getline(file, line))
|
||||
{
|
||||
if (strncmp(buf, marker, sizeof(marker) - 1))
|
||||
continue;
|
||||
++cores;
|
||||
if (line.find(marker) != std::string::npos)
|
||||
{
|
||||
++cores;
|
||||
}
|
||||
}
|
||||
|
||||
return cores;
|
||||
|
|
@ -146,7 +145,8 @@ int GetCoreCount()
|
|||
|
||||
CPUInfo cpu_info;
|
||||
|
||||
CPUInfo::CPUInfo() {
|
||||
CPUInfo::CPUInfo()
|
||||
{
|
||||
Detect();
|
||||
}
|
||||
|
||||
|
|
@ -156,9 +156,15 @@ void CPUInfo::Detect()
|
|||
// Set some defaults here
|
||||
// When ARMv8 cpus come out, these need to be updated.
|
||||
HTT = false;
|
||||
#ifdef _M_ARM_64
|
||||
OS64bit = true;
|
||||
CPU64bit = true;
|
||||
Mode64bit = true;
|
||||
#else
|
||||
OS64bit = false;
|
||||
CPU64bit = false;
|
||||
Mode64bit = false;
|
||||
#endif
|
||||
vendor = VENDOR_ARM;
|
||||
|
||||
// Get the information about the CPU
|
||||
|
|
@ -168,28 +174,35 @@ void CPUInfo::Detect()
|
|||
bool isVFP4 = false;
|
||||
#ifdef IOS
|
||||
isVFP3 = true;
|
||||
// Check for swift arch (VFP4`)
|
||||
#ifdef __ARM_ARCH_7S__
|
||||
isVFP4 = true;
|
||||
#endif // #ifdef __ARM_ARCH_7S__
|
||||
// Check for swift arch (VFP4`)
|
||||
#ifdef __ARM_ARCH_7S__
|
||||
isVFP4 = true;
|
||||
#endif // #ifdef __ARM_ARCH_7S__
|
||||
#elif defined(BLACKBERRY)
|
||||
isVFP3 = true;
|
||||
const char cpuInfoPath[] = "/pps/services/hw_info/inventory";
|
||||
const char marker[] = "Processor_Name::";
|
||||
const char qcCPU[] = "MSM";
|
||||
char buf[1024];
|
||||
FILE* fp;
|
||||
if (fp = fopen(cpuInfoPath, "r"))
|
||||
const std::string marker = "Processor_Name::";
|
||||
const std::string qcCPU = "MSM";
|
||||
|
||||
std::string line;
|
||||
std::ifstream file(cpuInfoPath);
|
||||
|
||||
if (file)
|
||||
{
|
||||
while (fgets(buf, sizeof(buf), fp))
|
||||
while (std::getline(file, line))
|
||||
{
|
||||
if (strncmp(buf, marker, sizeof(marker) - 1))
|
||||
continue;
|
||||
if (strncmp(buf + sizeof(marker) - 1, qcCPU, sizeof(qcCPU) - 1) == 0)
|
||||
isVFP4 = true;
|
||||
break;
|
||||
if (line.find(marker) != std::string::npos)
|
||||
{
|
||||
std::string first_three_chars = line.substr(marker.length(), qcCPU.length());
|
||||
|
||||
if (first_three_chars == qcCPU)
|
||||
{
|
||||
isVFP4 = true;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
}
|
||||
#endif
|
||||
// Hardcode this for now
|
||||
|
|
@ -209,7 +222,7 @@ void CPUInfo::Detect()
|
|||
bFP = false;
|
||||
bASIMD = false;
|
||||
#else
|
||||
strncpy(cpu_string, GetCPUString(), sizeof(cpu_string));
|
||||
strncpy(cpu_string, GetCPUString().c_str(), sizeof(cpu_string));
|
||||
bSwp = CheckCPUFeature("swp");
|
||||
bHalf = CheckCPUFeature("half");
|
||||
bThumb = CheckCPUFeature("thumb");
|
||||
|
|
@ -230,8 +243,8 @@ void CPUInfo::Detect()
|
|||
bFP = CheckCPUFeature("fp");
|
||||
bASIMD = CheckCPUFeature("asimd");
|
||||
#endif
|
||||
// On android, we build a separate library for ARMv7 so this is fine.
|
||||
// TODO: Check for ARMv7 on other platforms.
|
||||
// On android, we build a separate library for ARMv7 so this is fine.
|
||||
// TODO: Check for ARMv7 on other platforms.
|
||||
#if defined(__ARM_ARCH_7A__)
|
||||
bArmV7 = true;
|
||||
#else
|
||||
|
|
@ -264,6 +277,7 @@ std::string CPUInfo::Summarize()
|
|||
if (bVFPv4) sum += ", VFPv4";
|
||||
if (bIDIVa) sum += ", IDIVa";
|
||||
if (bIDIVt) sum += ", IDIVt";
|
||||
if (CPU64bit) sum += ", 64-bit";
|
||||
|
||||
return sum;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue