[v1.02] Bump version

.gitignore

@@ -1 +1,2 @@
 cpufetch
+*.o

LICENSE

@@ -1,21 +1,339 @@
-MIT License
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
 
-Copyright (c) 2018 Dr-Noob
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
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-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+                            Preamble
 
-The above copyright notice and this permission notice shall be included in all
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+  The licenses for most software are designed to take away your
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+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
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+your programs, too.
 
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+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
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+
+You may charge a fee for the physical act of transferring a copy, and
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+These requirements apply to the modified work as a whole.  If
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+distribution of the source code, even though third parties are not
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+
+  4. You may not copy, modify, sublicense, or distribute the Program
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+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
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+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
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+prohibited by law if you do not accept this License.  Therefore, by
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+Program), you indicate your acceptance of this License to do so, and
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+the Program or works based on it.
+
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+this License.
+
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+infringement or for any other reason (not limited to patent issues),
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+all those who receive copies directly or indirectly through you, then
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+
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+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
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+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
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+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
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+be similar in spirit to the present version, but may differ in detail to
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+
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+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
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+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
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+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

Makefile

@@ -12,10 +12,17 @@ COMMON_HDR = $(SRC_COMMON)ascii.h $(SRC_COMMON)cpu.h $(SRC_COMMON)udev.h $(SRC_C
 
 ifneq ($(OS),Windows_NT)
 	arch := $(shell uname -m)
-	ifeq ($(arch), $(filter $(arch), x86_64 amd64 i686))
+	ifeq ($(arch), $(filter $(arch), x86_64 amd64 i386 i486 i586 i686))
 		SRC_DIR=src/x86/
 		SOURCE += $(COMMON_SRC) $(SRC_DIR)cpuid.c $(SRC_DIR)apic.c $(SRC_DIR)cpuid_asm.c $(SRC_DIR)uarch.c
-		HEADERS += $(COMMON_HDR) $(SRC_DIR)cpuid.h $(SRC_DIR)apic.h $(SRC_DIR)cpuid_asm.h $(SRC_DIR)uarch.h
+		HEADERS += $(COMMON_HDR) $(SRC_DIR)cpuid.h $(SRC_DIR)apic.h $(SRC_DIR)cpuid_asm.h $(SRC_DIR)uarch.h $(SRC_DIR)freq/freq.h
+
+                os := $(shell uname -s)
+                ifeq ($(os), Linux)
+			SOURCE += $(SRC_DIR)freq/freq.c freq_nov.o freq_avx.o freq_avx512.o
+			HEADERS += $(SRC_DIR)freq/freq.h
+			CFLAGS += -pthread
+                endif
 		CFLAGS += -DARCH_X86 -std=c99 -fstack-protector-all
 	else ifeq ($(arch), $(filter $(arch), ppc64le ppc64 ppcle ppc))
 		SRC_DIR=src/ppc/
@@ -51,18 +58,27 @@ else
 	OUTPUT=cpufetch.exe
 endif
 
-all: CFLAGS += -O3
+all: CFLAGS += -O2
 all: $(OUTPUT)
 
 debug: CFLAGS += -g -O0
 debug: $(OUTPUT)
 
-static: CFLAGS += -static -O3
+static: CFLAGS += -static -O2
 static: $(OUTPUT)
 
-strict: CFLAGS += -O3 -Werror -fsanitize=undefined -D_FORTIFY_SOURCE=2
+strict: CFLAGS += -O2 -Werror -fsanitize=undefined -D_FORTIFY_SOURCE=2
 strict: $(OUTPUT)
 
+freq_nov.o: Makefile $(SRC_DIR)freq/freq_nov.c $(SRC_DIR)freq/freq_nov.h $(SRC_DIR)freq/freq.h
+	$(CC) $(CFLAGS) $(SANITY_FLAGS) -c -pthread $(SRC_DIR)freq/freq_nov.c -o $@
+
+freq_avx.o: Makefile $(SRC_DIR)freq/freq_avx.c $(SRC_DIR)freq/freq_avx.h $(SRC_DIR)freq/freq.h
+	$(CC) $(CFLAGS) $(SANITY_FLAGS) -c -mavx -pthread $(SRC_DIR)freq/freq_avx.c -o $@
+
+freq_avx512.o: Makefile $(SRC_DIR)freq/freq_avx512.c $(SRC_DIR)freq/freq_avx512.h $(SRC_DIR)freq/freq.h
+	$(CC) $(CFLAGS) $(SANITY_FLAGS) -c -mavx512f -pthread $(SRC_DIR)freq/freq_avx512.c -o $@
+
 $(OUTPUT): Makefile $(SOURCE) $(HEADERS)
 	$(CC) $(CFLAGS) $(SANITY_FLAGS) $(SOURCE) -o $(OUTPUT)
 
@@ -70,7 +86,7 @@ run: $(OUTPUT)
 	./$(OUTPUT)
 
 clean:
-	@rm -f $(OUTPUT)
+	@rm -f $(OUTPUT) *.o
 
 install: $(OUTPUT)
 	install -Dm755 "cpufetch"   "$(DESTDIR)$(PREFIX)/bin/cpufetch"

README.md

@@ -1,20 +1,35 @@
 <p align="center"><img width=50% src="./pictures/cpufetch.png"></p>
 
-<div align="center">
-
-![GitHub tag (latest by date)](https://img.shields.io/github/v/tag/Dr-Noob/cpufetch?label=cpufetch)
-[![GitHub Repo stars](https://img.shields.io/github/stars/Dr-Noob/cpufetch?color=4CC61F)](https://github.com/Dr-Noob/cpufetch/stargazers)
-[![GitHub issues](https://img.shields.io/github/issues/Dr-Noob/cpufetch)](https://github.com/Dr-Noob/cpufetch/issues)
-[![Packaging status](https://repology.org/badge/tiny-repos/cpufetch.svg)](https://repology.org/project/cpufetch/versions)
-[![License](https://img.shields.io/github/license/Dr-Noob/cpufetch?color=orange)](https://github.com/Dr-Noob/cpufetch/blob/master/LICENSE)
-
 <h4 align="center">Simple yet fancy CPU architecture fetching tool</h4>
-&nbsp;
 
-![cpu1](pictures/i9.png)
+<p align="center"> </p>
 
+<div align="center">
+  <img height="22px" src="https://img.shields.io/github/v/tag/Dr-Noob/cpufetch?label=cpufetch&style=flat-square">
+  <a href="https://github.com/Dr-Noob/cpufetch/stargazers">
+    <img height="22px" src="https://img.shields.io/github/stars/Dr-Noob/cpufetch?color=4CC61F&style=flat-square">
+  </a>
+  <a href="https://github.com/Dr-Noob/cpufetch/issues">
+    <img height="22px" src="https://img.shields.io/github/issues/Dr-Noob/cpufetch?style=flat-square">
+  </a>
+  <a href="https://github.com/Dr-Noob/cpufetch/blob/master/README.md#1-support">
+    <img height="22px" src="pictures/os-shield.jpg">
+  </a>
+  <a href="https://github.com/Dr-Noob/cpufetch/blob/master/LICENSE">
+    <img height="22px" src="https://img.shields.io/github/license/Dr-Noob/cpufetch?color=orange&style=flat-square">
+  </a>
 </div>
 
+<p align="center"> </p>
+
+<p align="center">
+cpufetch is a command-line tool written in C that displays the CPU information in a clean and beautiful way
+</p>
+
+<p align="center">
+<img width=80% src="./pictures/examples.gif">
+</p>
+
 # Table of contents
 <!-- UPDATE with: doctoc --notitle README.md -->
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->
@@ -24,12 +39,15 @@
 - [1. Support](#1-support)
 - [2. Installation](#2-installation)
   - [2.1 Installing from a package](#21-installing-from-a-package)
-  - [2.2 Building from source (Linux/Windows/macOS)](#22-building-from-source-linuxwindowsmacos)
+  - [2.2 Building from source](#22-building-from-source)
   - [2.3 Android](#23-android)
 - [3. Examples](#3-examples)
-  - [3.1 x86_64 CPUs](#31-x86_64-cpus)
-  - [3.2 ARM CPUs](#32-arm-cpus)
-- [4. Colors and style](#4-colors-and-style)
+  - [3.1 x86_64](#31-x86_64)
+  - [3.2 ARM](#32-arm)
+  - [3.3 PowerPC](#33-powerpc)
+- [4. Colors](#4-colors)
+  - [4.1 Specifying a name](#41-specifying-a-name)
+  - [4.2 Specifying the colors in RGB format](#42-specifying-the-colors-in-rgb-format)
 - [5. Implementation](#5-implementation)
 - [6. Bugs or improvements](#6-bugs-or-improvements)
 - [7. Acknowledgements](#7-acknowledgements)
@@ -37,31 +55,30 @@
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
-# 1. Support
+## 1. Support
 
-cpufetch supports the following architectures:
-- x86 / x86_64
-- ARM
-- PowerPC
+| OS          | x86_64 / x86       | ARM                | PowerPC            |
+|:-----------:|:------------------:|:------------------:|:------------------:|
+| GNU / Linux | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
+| Windows     | :heavy_check_mark: | :x:                | :x:                |
+| Android     | :heavy_check_mark: | :heavy_check_mark: | :x:                |
+| macOS       | :heavy_check_mark: | :heavy_check_mark: | :x:                |
+| FreeBSD     | :heavy_check_mark: | :x:                | :x:                |
 
-| OS        | x86_64 / x86       | ARM                | PowerPC            | Notes             |
-|:---------:|:------------------:|:------------------:|:------------------:|:-----------------:|
-| GNU/Linux | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | Best support      |
-| Windows   | :heavy_check_mark: | :x:                | :x:                | Some information may be missing. <br> Colors will be used if supported |
-| Android   | :heavy_check_mark: | :heavy_check_mark: | :x:                | Some information may be missing |
-| macOS     | :heavy_check_mark: | :heavy_check_mark: | :x:                | Only the Apple M1 is supported in ARM |
-| FreeBSD   | :heavy_check_mark: | :x:                | :x:                | Some information may be missing. |
+**NOTES:**
+- Colors will be used in Windows only if the terminal supports it.
+- Support in macOS ARM is limited to Apple M1 only
 
-# 2. Installation
-## 2.1 Installing from a package
+## 2. Installation
+### 2.1 Installing from a package
 Choose the right package for your operating system:
 
 [![Packaging status](https://repology.org/badge/vertical-allrepos/cpufetch.svg)](https://repology.org/project/cpufetch/versions)
 
 If there is no available package for your OS, you can download the cpufetch binary from [the releases page](https://github.com/Dr-Noob/cpufetch/releases), or [build cpufetch from source](#22-building-from-source-linuxwindowsmacos) (see below).
 
-## 2.2 Building from source (Linux/Windows/macOS)
-You will need a C compiler (e.g, `gcc`), and `make` to compile `cpufetch`. To do so, just clone the repo and run `make`:
+### 2.2 Building from source
+You will need a C compiler (e.g, `gcc`) and `make` to compile `cpufetch`. Just clone the repo and run `make`:
 
 ```
 git clone https://github.com/Dr-Noob/cpufetch
@@ -70,9 +87,7 @@ make
 ./cpufetch
 ```
 
-The Makefile is designed to work on Linux, Windows and macOS.
-
-## 2.3 Android
+### 2.3 Android
 1. Install `termux` app (terminal emulator)
 2. Run `pkg install -y git make clang` inside termux.
 3. Build from source normally:
@@ -81,45 +96,65 @@ The Makefile is designed to work on Linux, Windows and macOS.
   - make
   - ./cpufetch
 
-# 3. Examples
-Here are more examples of how `cpufetch` looks on different CPUs.
+## 3. Examples
+### 3.1 x86_64
 
-## 3.1 x86_64 CPUs
+<p align="center"><img width=90% src="pictures/epyc.png"></p>
+<p align="center">AMD EPYC HPC server</p>
+<p align="center"><img width=90% src="pictures/cascade_lake.jpg"></p>
+<p align="center">Intel Xeon HPC server</p>
 
-![cpu2](pictures/epyc.png)
+### 3.2 ARM
 
-![cpu3](pictures/cascade_lake.png)
+<p align="center">
+<img width=45% src="pictures/exynos.jpg">
+&nbsp;
+<img width=45% src="pictures/snapd.png">
+</p>
+<p align="center">Samsung Galaxy S8 (left) Xiaomi Redmi Note 7 (right)</p>
 
-## 3.2 ARM CPUs
+### 3.3 PowerPC
 
-![cpu4](pictures/exynos.png)
+<p align="center"><img width=90% src="pictures/ibm.png"></p>
+<p align="center">Talos II</p>
 
-![cpu5](pictures/snapdragon.png)
+## 4. Colors
+By default, `cpufetch` will print the CPU logo with the system colorscheme. However, you can set a custom color scheme in two different ways:
 
-# 4. Colors and style
-By default, `cpufetch` will print the CPU art with the system colorscheme. However, you can always set a custom color scheme, either
-specifying Intel or AMD, or specifying the colors in RGB format:
+### 4.1 Specifying a name
+
+ By specifying a name, cpufetch will use the specific colors of each manufacture. Valid values are:
+
+- intel
+- intel-new
+- amd
+- ibm
+- arm
 
 ```
 ./cpufetch --color intel (default color for Intel)
-./cpufetch --color amd (default color for AMD)
-./cpufetch --color 239,90,45:210,200,200:100,200,45:0,200,200 (example)
 ```
 
-In the case of setting the colors using RGB, 4 colors must be given in with the format: ``[R,G,B:R,G,B:R,G,B:R,G,B]``. These colors correspond to CPU art color (2 colors) and for the text colors (following 2). Thus, you can customize all the colors.
+### 4.2 Specifying the colors in RGB format
 
-# 5. Implementation
-See [cpufetch programming documentation](https://github.com/Dr-Noob/cpufetch/doc/README.md).
+5 colors must be given in RGB with the format: ``[R,G,B:R,G,B:R,G,B:R,G,B:R,G,B]``. These colors correspond to the CPU logo color (first 3 colors) and for the text colors (following 2).
 
-# 6. Bugs or improvements
-See [cpufetch contributing guidelines](https://github.com/Dr-Noob/cpufetch/CONTRIBUTING.md)
+```
+./cpufetch --color 239,90,45:210,200,200:0,0,0:100,200,45:0,200,200
+```
 
-# 7. Acknowledgements
+## 5. Implementation
+See [cpufetch programming documentation](https://github.com/Dr-Noob/cpufetch/tree/master/doc).
+
+## 6. Bugs or improvements
+See [cpufetch contributing guidelines](https://github.com/Dr-Noob/cpufetch/blob/master/CONTRIBUTING.md).
+
+## 7. Acknowledgements
 Thanks to the fellow contributors and interested people in the project. Special thanks to:
 - [Gonzalocl](https://github.com/Gonzalocl), [OdnetninI](https://github.com/OdnetninI): Tested cpufetch in the earlier versions of the project in many different CPUs.
 - [Kyngo](https://github.com/Kyngo): Tested cpufetch in the Apple M1 CPU.
 - [avollmerhaus](https://github.com/avollmerhaus): Gave me ssh acess to a PowerPC machine, allowing me to develop the PowerPC port.
 - [bbonev](https://github.com/bbonev), [stephan-cr](https://github.com/stephan-cr): Reviewed the source code.
 
-# 8. cpufetch for GPUs (gpufetch)
+## 8. cpufetch for GPUs (gpufetch)
 See [gpufetch](https://github.com/Dr-Noob/gpufetch) project!

cpufetch.1

@@ -1,12 +1,13 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.48.3. It was also manually adapted to look correctly
-.TH CPUFETCH "1" "August 2021" "cpufetch v0.99 (Linux x86_64 build)" "User Commands"
+.\" help2man -N -n "Simple yet fancy CPU architecture fetching tool" ./cpufetch > cpufetch.1
+.TH CPUFETCH "1" "September 2021" "cpufetch v1.00 (Linux x86_64 build)" "User Commands"
 .SH NAME
-cpufetch \- manual page for cpufetch v0.99 (Linux x86_64 build)
+cpufetch \- Simple yet fancy CPU architecture fetching tool
 .SH SYNOPSIS
 .B cpufetch
 [\fI\,OPTION\/\fR]...
 .SH DESCRIPTION
-Simple yet fancy CPU architecture fetching tool
+cpufetch is a command-line tool written in C that displays the CPU information in a clean and beautiful way
 .SH OPTIONS
 .TP
 \fB\-c\fR, \fB\-\-color\fR

src/arm/midr.c

@@ -10,12 +10,6 @@
   #include <asm/hwcap.h>
 #elif defined __APPLE__ || __MACH__
   #include "sysctl.h"
-  // From Linux kernel: arch/arm64/include/asm/cputype.h
-  #define MIDR_APPLE_M1_ICESTORM  0x610F0220
-  #define MIDR_APPLE_M1_FIRESTORM 0x610F0230
-  #ifndef CPUFAMILY_ARM_FIRESTORM_ICESTORM
-    #define CPUFAMILY_ARM_FIRESTORM_ICESTORM 0x1B588BB3
-  #endif
 #endif
 
 #include "../common/global.h"
@@ -24,6 +18,10 @@
 #include "uarch.h"
 #include "soc.h"
 
+bool cores_are_equal(int c1pos, int c2pos, uint32_t* midr_array, int32_t* freq_array) {
+  return midr_array[c1pos] == midr_array[c2pos] && freq_array[c1pos] == freq_array[c2pos];
+}
+
 struct cache* get_cache_info(struct cpuInfo* cpu) {
   struct cache* cach = emalloc(sizeof(struct cache));
   init_cache_struct(cach);
@@ -41,13 +39,13 @@ struct cache* get_cache_info(struct cpuInfo* cpu) {
 struct frequency* get_frequency_info(uint32_t core) {
   struct frequency* freq = emalloc(sizeof(struct frequency));
 
-  freq->base = UNKNOWN_FREQ;
+  freq->base = UNKNOWN_DATA;
   freq->max = get_max_freq_from_file(core);
 
   return freq;
 }
 
-struct topology* get_topology_info(struct cpuInfo* cpu, struct cache* cach, uint32_t* midr_array, int socket_idx, int ncores) {
+struct topology* get_topology_info(struct cpuInfo* cpu, struct cache* cach, uint32_t* midr_array, int32_t* freq_array, int socket_idx, int ncores) {
   struct topology* topo = emalloc(sizeof(struct topology));
   init_topology_struct(topo, cach);
 
@@ -57,7 +55,7 @@ struct topology* get_topology_info(struct cpuInfo* cpu, struct cache* cach, uint
   int cores_in_socket = 0;
 
   while(socket_idx + 1 > sockets_seen) {
-    if(currrent_core_idx < ncores && midr_array[first_core_idx] == midr_array[currrent_core_idx]) {
+    if(currrent_core_idx < ncores && cores_are_equal(first_core_idx, currrent_core_idx, midr_array, freq_array)) {
       currrent_core_idx++;
       cores_in_socket++;
     }
@@ -77,7 +75,7 @@ int64_t get_peak_performance(struct cpuInfo* cpu) {
 
   //First check we have consistent data
   for(int i=0; i < cpu->num_cpus; ptr = ptr->next_cpu, i++) {
-    if(get_freq(ptr->freq) == UNKNOWN_FREQ) {
+    if(get_freq(ptr->freq) == UNKNOWN_DATA) {
       return -1;
     }
   }
@@ -93,10 +91,6 @@ int64_t get_peak_performance(struct cpuInfo* cpu) {
   return flops;
 }
 
-bool cores_are_equal(int c1pos, int c2pos, uint32_t* midr_array, int32_t* freq_array) {
-  return midr_array[c1pos] == midr_array[c2pos] && freq_array[c1pos] == freq_array[c2pos];
-}
-
 uint32_t fill_ids_from_midr(uint32_t* midr_array, int32_t* freq_array, uint32_t* ids_array, int len) {
   uint32_t latest_id = 0;
   bool found;
@@ -204,7 +198,7 @@ struct cpuInfo* get_cpu_info_linux(struct cpuInfo* cpu) {
     }
 
     freq_array[i] = get_max_freq_from_file(i);
-    if(freq_array[i] == UNKNOWN_FREQ) {
+    if(freq_array[i] == UNKNOWN_DATA) {
       printWarn("Unable to fetch max frequency for core %d. This is probably because the core is offline", i);
       freq_array[i] = freq_array[0];
     }
@@ -231,7 +225,7 @@ struct cpuInfo* get_cpu_info_linux(struct cpuInfo* cpu) {
     ptr->feat = get_features_info();
     ptr->freq = get_frequency_info(midr_idx);
     ptr->cach = get_cache_info(ptr);
-    ptr->topo = get_topology_info(ptr, ptr->cach, midr_array, i, ncores);
+    ptr->topo = get_topology_info(ptr, ptr->cach, midr_array, freq_array, i, ncores);
   }
 
   cpu->num_cpus = sockets;
@@ -244,7 +238,7 @@ struct cpuInfo* get_cpu_info_linux(struct cpuInfo* cpu) {
 }
 
 #elif defined __APPLE__ || __MACH__
-void fill_cpu_info_firestorm_icestorm(struct cpuInfo* cpu) {
+void fill_cpu_info_firestorm_icestorm(struct cpuInfo* cpu, uint32_t pcores, uint32_t ecores) {
   // 1. Fill ICESTORM
   struct cpuInfo* ice = cpu;
 
@@ -254,9 +248,9 @@ void fill_cpu_info_firestorm_icestorm(struct cpuInfo* cpu) {
   ice->feat = get_features_info();
   ice->topo = malloc(sizeof(struct topology));
   ice->topo->cach = ice->cach;
-  ice->topo->total_cores = 4;
+  ice->topo->total_cores = ecores;
   ice->freq = malloc(sizeof(struct frequency));
-  ice->freq->base = UNKNOWN_FREQ;
+  ice->freq->base = UNKNOWN_DATA;
   ice->freq->max = 2064;
   ice->hv = malloc(sizeof(struct hypervisor));
   ice->hv->present = false;
@@ -270,9 +264,9 @@ void fill_cpu_info_firestorm_icestorm(struct cpuInfo* cpu) {
   fire->feat = get_features_info();
   fire->topo = malloc(sizeof(struct topology));
   fire->topo->cach = fire->cach;
-  fire->topo->total_cores = 4;
+  fire->topo->total_cores = pcores;
   fire->freq = malloc(sizeof(struct frequency));
-  fire->freq->base = UNKNOWN_FREQ;
+  fire->freq->base = UNKNOWN_DATA;
   fire->freq->max = 3200;
   fire->hv = malloc(sizeof(struct hypervisor));
   fire->hv->present = false;
@@ -286,8 +280,26 @@ struct cpuInfo* get_cpu_info_mach(struct cpuInfo* cpu) {
   // is a ARM_FIRESTORM_ICESTORM (Apple M1)
   if(cpu_family == CPUFAMILY_ARM_FIRESTORM_ICESTORM) {
     cpu->num_cpus = 2;
+    // Now detect the M1 version
+    uint32_t cpu_subfamily = get_sys_info_by_name("hw.cpusubfamily");
+    if(cpu_subfamily == CPUSUBFAMILY_ARM_HG) {
+      // Apple M1
+      fill_cpu_info_firestorm_icestorm(cpu, 4, 4);
+    }
+    else if(cpu_subfamily == CPUSUBFAMILY_ARM_HS || cpu_subfamily == CPUSUBFAMILY_ARM_HC_HD) {
+      // Apple M1 Pro/Max. Detect number of cores
+      uint32_t physicalcpu = get_sys_info_by_name("hw.physicalcpu");
+      if(physicalcpu < 8 || physicalcpu > 10) {
+        printBug("Found invalid physicalcpu: 0x%.8X", physicalcpu);
+        return NULL;
+      }
+      fill_cpu_info_firestorm_icestorm(cpu, physicalcpu-2, 2);
+    }
+    else {
+      printBug("Found invalid cpu_subfamily: 0x%.8X", cpu_subfamily);
+      return NULL;
+    }
     cpu->soc = get_soc();
-    fill_cpu_info_firestorm_icestorm(cpu);
     cpu->peak_performance = get_peak_performance(cpu);
   }
   else {
@@ -368,7 +380,7 @@ void print_debug(struct cpuInfo* cpu) {
     else {
       printf("0x%.8X ", midr);
     }
-    if(freq == UNKNOWN_FREQ) {
+    if(freq == UNKNOWN_DATA) {
       printWarn("Unable to fetch max frequency for core %d. This is probably because the core is offline", i);
       printf("%ld MHz\n", get_max_freq_from_file(0));
     }

src/arm/soc.c

@@ -8,6 +8,10 @@
 #include "udev.h"
 #include "../common/global.h"
 
+#if defined(__APPLE__) || defined(__MACH__)
+  #include "sysctl.h"
+#endif
+
 #define min(a,b) (((a)<(b))?(a):(b))
 #define ARRAY_SIZE(arr)     (sizeof(arr) / sizeof((arr)[0]))
 
@@ -17,7 +21,8 @@ static char* soc_trademark_string[] = {
   [SOC_VENDOR_EXYNOS]     = "Exynos ",
   [SOC_VENDOR_KIRIN]      = "Kirin ",
   [SOC_VENDOR_BROADCOM]   = "Broadcom BCM",
-  [SOC_VENDOR_APPLE]      = "Apple "
+  [SOC_VENDOR_APPLE]      = "Apple ",
+  [SOC_VENDOR_ALLWINNER]  = "Allwinner "
 };
 
 static char* soc_rpi_string[] = {
@@ -38,10 +43,10 @@ void fill_soc(struct system_on_chip* soc, char* soc_name, SOC soc_model, int32_t
 }
 
 bool match_soc(struct system_on_chip* soc, char* raw_name, char* expected_name, char* soc_name, SOC soc_model, int32_t process) {
-  if(strlen(raw_name) > strlen(expected_name))
-    return false;
+  int len1 = strlen(raw_name);
+  int len2 = strlen(expected_name);
+  int len = min(len1, len2);
 
-  int len = strlen(raw_name);
   if(strncmp(raw_name, expected_name, len) != 0) {
     return false;
   }
@@ -197,12 +202,15 @@ bool match_exynos(char* soc_name, struct system_on_chip* soc) {
 
 bool match_mediatek(char* soc_name, struct system_on_chip* soc) {
   char* tmp;
+  char* soc_name_upper = toupperstr(soc_name);
 
-  if((tmp = strstr(soc_name, "MT")) == NULL)
+  if((tmp = strstr(soc_name_upper, "MT")) == NULL)
     return false;
 
   SOC_START
   // Dimensity //
+  SOC_EQ(tmp, "MT6893",   "Dimensity 1200",  SOC_MTK_MT6893,   soc, 6)
+  SOC_EQ(tmp, "MT6891",   "Dimensity 1100",  SOC_MTK_MT6891,   soc, 6)
   SOC_EQ(tmp, "MT6889",   "Dimensity 1000",  SOC_MTK_MT6889,   soc, 7)
   SOC_EQ(tmp, "MT6885Z",  "Dimensity 1000L", SOC_MTK_MT6885Z,  soc, 7)
   //SOC_EQ(tmp, "?",      "Dimensity 700",   SOC_MTK_,         soc, 7)
@@ -447,6 +455,50 @@ bool match_qualcomm(char* soc_name, struct system_on_chip* soc) {
   SOC_EQ(tmp, "SM8250",         "865",       SOC_SNAPD_SM8250,         soc,  7)
   SOC_EQ(tmp, "SM8250-AB",      "865+",      SOC_SNAPD_SM8250_AB,      soc,  7)
   SOC_EQ(tmp, "SM8350",         "888",       SOC_SNAPD_SM8350,         soc,  5)
+  SOC_EQ(tmp, "SM8350-AC",      "888+",      SOC_SNAPD_SM8350,         soc,  5)
+  SOC_END
+}
+
+// https://linux-sunxi.org/Allwinner_SoC_Family
+bool match_allwinner(char* soc_name, struct system_on_chip* soc) {
+  char* tmp;
+
+  if((tmp = strstr(soc_name, "sun")) == NULL)
+    return false;
+
+  SOC_START
+  // A series 32 bits
+  SOC_EQ(tmp, "sun4i", "A10",   SOC_ALLWINNER_A10,  soc, 55)
+  SOC_EQ(tmp, "sun5i", "A13",   SOC_ALLWINNER_A13,  soc, 55)
+  SOC_EQ(tmp, "sun5i", "A10s",  SOC_ALLWINNER_A10S, soc, 55)
+  SOC_EQ(tmp, "sun7i", "A20",   SOC_ALLWINNER_A20,  soc, 40)
+  SOC_EQ(tmp, "sun8i", "A23",   SOC_ALLWINNER_A23,  soc, 40)
+  SOC_EQ(tmp, "sun6i", "A31",   SOC_ALLWINNER_A31,  soc, 40)
+  SOC_EQ(tmp, "sun6i", "A31s",  SOC_ALLWINNER_A31S, soc, 40)
+  SOC_EQ(tmp, "sun8i", "A33",   SOC_ALLWINNER_A33,  soc, 40)
+  SOC_EQ(tmp, "sun8i", "A40",   SOC_ALLWINNER_A40,  soc, 40)
+  SOC_EQ(tmp, "sun8i", "A50",   SOC_ALLWINNER_A50,  soc, 28)
+  SOC_EQ(tmp, "sun9i", "A80",   SOC_ALLWINNER_A80,  soc, 28)
+  SOC_EQ(tmp, "sun8i", "A83T",  SOC_ALLWINNER_A83T, soc, 28)
+
+  // H series 32 bits
+  SOC_EQ(tmp, "sun8i", "H2+",   SOC_ALLWINNER_HZP,  soc, 40)
+  SOC_EQ(tmp, "sun8i", "H3",    SOC_ALLWINNER_H3,   soc, 40)
+  SOC_EQ(tmp, "sun8i", "H8",    SOC_ALLWINNER_H8,   soc, 28)
+
+  // H series 64 bits
+  SOC_EQ(tmp, "sun50i", "H5",   SOC_ALLWINNER_H5,   soc, 40)
+  SOC_EQ(tmp, "sun50i", "H6",   SOC_ALLWINNER_H6,   soc, 28)
+  SOC_EQ(tmp, "sun50i", "H616", SOC_ALLWINNER_H616, soc, 28)
+
+  // R series 32 bits
+  SOC_EQ(tmp, "sun5i", "R8",    SOC_ALLWINNER_R8,   soc, 55)
+  SOC_EQ(tmp, "sun8i", "R16",   SOC_ALLWINNER_R16,  soc, 40)
+  SOC_EQ(tmp, "sun8i", "R40",   SOC_ALLWINNER_R40,  soc, 40)
+  SOC_EQ(tmp, "sun8i", "R58",   SOC_ALLWINNER_R58,  soc, 28)
+
+  // R series  64 bits
+  SOC_EQ(tmp, "sun50i", "R329", SOC_ALLWINNER_R328, soc, 28)
   SOC_END
 }
 
@@ -486,8 +538,10 @@ struct system_on_chip* parse_soc_from_string(struct system_on_chip* soc) {
   if(match_hisilicon(raw_name, soc))
     return soc;
 
-  match_broadcom(raw_name, soc);
+  if(match_allwinner(raw_name, soc))
+    return soc;
 
+  match_broadcom(raw_name, soc);
   return soc;
 }
 
@@ -498,26 +552,37 @@ static inline int android_property_get(const char* key, char* value) {
   return __system_property_get(key, value);
 }
 
+void try_parse_soc_from_string(struct system_on_chip* soc, int soc_len, char* soc_str) {
+  soc->raw_name = emalloc(sizeof(char) * (soc_len + 1));
+  strncpy(soc->raw_name, soc_str, soc_len + 1);
+  soc->raw_name[soc_len] = '\0';
+  soc->soc_vendor = SOC_VENDOR_UNKNOWN;
+  parse_soc_from_string(soc);
+}
+
 struct system_on_chip* guess_soc_from_android(struct system_on_chip* soc) {
   char tmp[100];
   int property_len = 0;
 
   property_len = android_property_get("ro.mediatek.platform", (char *) &tmp);
   if(property_len > 0) {
-    soc->raw_name = emalloc(sizeof(char) * (property_len + 1));
-    strncpy(soc->raw_name, tmp, property_len + 1);
-    soc->raw_name[property_len] = '\0';
-    soc->soc_vendor = SOC_VENDOR_UNKNOWN;
-    return parse_soc_from_string(soc);
+    try_parse_soc_from_string(soc, property_len, tmp);
+    if(soc->soc_vendor == SOC_VENDOR_UNKNOWN) printWarn("SoC detection failed using Android property ro.mediatek.platform: %s", tmp);
+    else return soc;
   }
 
   property_len = android_property_get("ro.product.board", (char *) &tmp);
   if(property_len > 0) {
-    soc->raw_name = emalloc(sizeof(char) * (property_len + 1));
-    strncpy(soc->raw_name, tmp, property_len + 1);
-    soc->raw_name[property_len] = '\0';
-    soc->soc_vendor = SOC_VENDOR_UNKNOWN;
-    return parse_soc_from_string(soc);
+    try_parse_soc_from_string(soc, property_len, tmp);
+    if(soc->soc_vendor == SOC_VENDOR_UNKNOWN) printWarn("SoC detection failed using Android property ro.product.board: %s", tmp);
+    else return soc;
+  }
+
+  property_len = android_property_get("ro.board.platform", (char *) &tmp);
+  if(property_len > 0) {
+    try_parse_soc_from_string(soc, property_len, tmp);
+    if(soc->soc_vendor == SOC_VENDOR_UNKNOWN) printWarn("SoC detection failed using Android property ro.board.platform: %s", tmp);
+    else return soc;
   }
 
   return soc;
@@ -581,6 +646,22 @@ struct system_on_chip* guess_soc_raspbery_pi(struct system_on_chip* soc) {
   return soc;
 }
 
+#if defined(__APPLE__) || defined(__MACH__)
+struct system_on_chip* guess_soc_apple(struct system_on_chip* soc) {
+  uint32_t cpu_subfamily = get_sys_info_by_name("hw.cpusubfamily");
+  if(cpu_subfamily == CPUSUBFAMILY_ARM_HG) {
+    fill_soc(soc, "M1", SOC_APPLE_M1, 5);
+  }
+  else if(cpu_subfamily == CPUSUBFAMILY_ARM_HS) {
+    fill_soc(soc, "M1 Pro", SOC_APPLE_M1_PRO, 5);
+  }
+  else if(cpu_subfamily == CPUSUBFAMILY_ARM_HC_HD) {
+    fill_soc(soc, "M1 Max", SOC_APPLE_M1_MAX, 5);
+  }
+  return soc;
+}
+#endif
+
 struct system_on_chip* get_soc() {
   struct system_on_chip* soc = emalloc(sizeof(struct system_on_chip));
   soc->raw_name = NULL;
@@ -614,7 +695,13 @@ struct system_on_chip* get_soc() {
 #endif // ifdef __ANDROID__
   }
 #elif defined __APPLE__ || __MACH__
-    fill_soc(soc, "M1", SOC_APPLE_M1, 5);
+  soc = guess_soc_apple(soc);
+  if(soc->soc_vendor == SOC_VENDOR_UNKNOWN) {
+    printWarn("SoC detection failed using cpu_subfamily");
+  }
+  else {
+    return soc;
+  }
 #endif // ifdef __linux__
 
   if(soc->raw_name == NULL) {

src/arm/soc.h

@@ -13,7 +13,8 @@ enum {
   SOC_VENDOR_EXYNOS,
   SOC_VENDOR_KIRIN,
   SOC_VENDOR_BROADCOM,
-  SOC_VENDOR_APPLE
+  SOC_VENDOR_APPLE,
+  SOC_VENDOR_ALLWINNER
 };
 
 struct system_on_chip {

src/arm/socs.h

@@ -63,6 +63,8 @@ enum {
   SOC_EXYNOS_980,
   SOC_EXYNOS_880,
   // Mediatek //
+  SOC_MTK_MT6893,
+  SOC_MTK_MT6891,
   SOC_MTK_MT6889,
   SOC_MTK_MT6885Z,
   SOC_MTK_MT6853,
@@ -251,16 +253,43 @@ enum {
   SOC_SNAPD_SM8250_AB,
   SOC_SNAPD_SM8350,
   // APPLE
-  SOC_APPLE_M1
+  SOC_APPLE_M1,
+  SOC_APPLE_M1_PRO,
+  SOC_APPLE_M1_MAX,
+  // ALLWINNER
+  SOC_ALLWINNER_A10,
+  SOC_ALLWINNER_A13,
+  SOC_ALLWINNER_A10S,
+  SOC_ALLWINNER_A20,
+  SOC_ALLWINNER_A23,
+  SOC_ALLWINNER_A31,
+  SOC_ALLWINNER_A31S,
+  SOC_ALLWINNER_A33,
+  SOC_ALLWINNER_A40,
+  SOC_ALLWINNER_A50,
+  SOC_ALLWINNER_A80,
+  SOC_ALLWINNER_A83T,
+  SOC_ALLWINNER_HZP,
+  SOC_ALLWINNER_H3,
+  SOC_ALLWINNER_H8,
+  SOC_ALLWINNER_H5,
+  SOC_ALLWINNER_H6,
+  SOC_ALLWINNER_H616,
+  SOC_ALLWINNER_R8,
+  SOC_ALLWINNER_R16,
+  SOC_ALLWINNER_R40,
+  SOC_ALLWINNER_R58,
+  SOC_ALLWINNER_R328
 };
 
 inline static VENDOR get_soc_vendor_from_soc(SOC soc) {
   if(soc >= SOC_BCM_2835 && soc <= SOC_BCM_21654) return SOC_VENDOR_BROADCOM;
   else if(soc >= SOC_HISILICON_3620 && soc <= SOC_HISILICON_3690) return SOC_VENDOR_KIRIN;
   else if(soc >= SOC_EXYNOS_3475 && soc <= SOC_EXYNOS_880) return SOC_VENDOR_EXYNOS;
-  else if(soc >= SOC_MTK_MT6889 && soc <= SOC_MTK_MT8783) return SOC_VENDOR_MEDIATEK;
+  else if(soc >= SOC_MTK_MT6893 && soc <= SOC_MTK_MT8783) return SOC_VENDOR_MEDIATEK;
   else if(soc >= SOC_SNAPD_QSD8650 && soc <= SOC_SNAPD_SM8350) return SOC_VENDOR_SNAPDRAGON;
-  else if(soc >= SOC_APPLE_M1 && soc <= SOC_APPLE_M1) return SOC_VENDOR_APPLE;
+  else if(soc >= SOC_APPLE_M1 && soc <= SOC_APPLE_M1_MAX) return SOC_VENDOR_APPLE;
+  else if(soc >= SOC_ALLWINNER_A10 && soc <= SOC_ALLWINNER_R328) return SOC_VENDOR_ALLWINNER;
   return SOC_VENDOR_UNKNOWN;
 }
 

src/arm/sysctl.h

@@ -1,6 +1,22 @@
 #ifndef __SYSCTL__
 #define __SYSCTL__
 
+// From Linux kernel: arch/arm64/include/asm/cputype.h
+#define MIDR_APPLE_M1_ICESTORM  0x610F0220
+#define MIDR_APPLE_M1_FIRESTORM 0x610F0230
+#ifndef CPUFAMILY_ARM_FIRESTORM_ICESTORM
+  #define CPUFAMILY_ARM_FIRESTORM_ICESTORM 0x1B588BB3
+#endif
+#ifndef CPUSUBFAMILY_ARM_HG
+  #define CPUSUBFAMILY_ARM_HG 2
+#endif
+#ifndef CPUSUBFAMILY_ARM_HS
+  #define CPUSUBFAMILY_ARM_HS 4
+#endif
+#ifndef CPUSUBFAMILY_ARM_HC_HD
+  #define CPUSUBFAMILY_ARM_HC_HD 5
+#endif
+
 uint32_t get_sys_info_by_name(char* name);
 
 #endif

src/arm/uarch.c

@@ -64,6 +64,7 @@ enum {
   UARCH_CORTEX_A76,
   UARCH_CORTEX_A77,
   UARCH_CORTEX_A78,
+  UARCH_CORTEX_X1,
   UARCH_NEOVERSE_N1,
   UARCH_NEOVERSE_E1,
   UARCH_SCORPION,
@@ -102,7 +103,9 @@ enum {
   UARCH_BRAHMA_B15,
   UARCH_BRAHMA_B53,
   UARCH_XGENE,        // Applied Micro X-Gene.
-  UARCH_TAISHAN_V110  // HiSilicon TaiShan v110 (Huawei Kunpeng 920 series processors).
+  UARCH_TAISHAN_V110, // HiSilicon TaiShan v110 (Huawei Kunpeng 920 series processors).
+  // PHYTIUM
+  UARCH_XIAOMI,       // Not to be confused with Xiaomi Inc
 };
 
 static const ISA isas_uarch[] = {
@@ -130,6 +133,7 @@ static const ISA isas_uarch[] = {
   [UARCH_CORTEX_A76]   = ISA_ARMv8_2_A,
   [UARCH_CORTEX_A77]   = ISA_ARMv8_2_A,
   [UARCH_CORTEX_A78]   = ISA_ARMv8_2_A,
+  [UARCH_CORTEX_X1]    = ISA_ARMv8_2_A,
   [UARCH_NEOVERSE_N1]  = ISA_ARMv8_2_A,
   [UARCH_NEOVERSE_E1]  = ISA_ARMv8_2_A,
   [UARCH_BRAHMA_B15]   = ISA_ARMv7_A,   // Same as Cortex-A15
@@ -154,6 +158,7 @@ static const ISA isas_uarch[] = {
   [UARCH_ICESTORM]     = ISA_ARMv8_4_A,
   [UARCH_FIRESTORM]    = ISA_ARMv8_4_A,
   [UARCH_PJ4]          = ISA_ARMv7_A,
+  [UARCH_XIAOMI]       = ISA_ARMv8_A,
 };
 
 static char* isas_string[] = {
@@ -236,6 +241,7 @@ struct uarch* get_uarch_from_midr(uint32_t midr, struct cpuInfo* cpu) {
   CHECK_UARCH(arch, cpu, 'A', 0xD0D, NA, NA, "Cortex-A77",            UARCH_CORTEX_A77,   CPU_VENDOR_ARM)
   CHECK_UARCH(arch, cpu, 'A', 0xD0E, NA, NA, "Cortex-A76",            UARCH_CORTEX_A76,   CPU_VENDOR_ARM)
   CHECK_UARCH(arch, cpu, 'A', 0xD41, NA, NA, "Cortex-A78",            UARCH_CORTEX_A78,   CPU_VENDOR_ARM)
+  CHECK_UARCH(arch, cpu, 'A', 0xD44, NA, NA, "Cortex-X1",             UARCH_CORTEX_X1,    CPU_VENDOR_ARM)
   CHECK_UARCH(arch, cpu, 'A', 0xD4A, NA, NA, "Neoverse E1",           UARCH_NEOVERSE_E1,  CPU_VENDOR_ARM)
 
   CHECK_UARCH(arch, cpu, 'B', 0x00F, NA, NA, "Brahma B15",            UARCH_BRAHMA_B15,   CPU_VENDOR_BROADCOM)
@@ -286,6 +292,9 @@ struct uarch* get_uarch_from_midr(uint32_t midr, struct cpuInfo* cpu) {
   CHECK_UARCH(arch, cpu, 'S', 0x003, 1,  NA, "Exynos M4",             UARCH_EXYNOS_M4,    CPU_VENDOR_SAMSUNG)   // Exynos 9820
   CHECK_UARCH(arch, cpu, 'S', 0x004, 1,  NA, "Exynos M5",             UARCH_EXYNOS_M5,    CPU_VENDOR_SAMSUNG)   // Exynos 9820 (this one looks wrong at uarch.c ...)
 
+  CHECK_UARCH(arch, cpu, 'p', 0x663, 1,  NA, "Xiaomi",                UARCH_XIAOMI,       CPU_VENDOR_PHYTIUM)   // From a fellow contributor (https://github.com/Dr-Noob/cpufetch/issues/125)
+                                                                                                                // Also interesting: https://en.wikipedia.org/wiki/FeiTeng_(processor)
+
   CHECK_UARCH(arch, cpu, 'a', 0x022, NA, NA, "Icestorm",              UARCH_ICESTORM,     CPU_VENDOR_APPLE)
   CHECK_UARCH(arch, cpu, 'a', 0x023, NA, NA, "Firestorm",             UARCH_FIRESTORM,    CPU_VENDOR_APPLE)
 

src/arm/udev.c

@@ -3,7 +3,6 @@
 #include "midr.h"
 
 #define _PATH_DEVICETREE_MODEL       "/sys/firmware/devicetree/base/model"
-#define _PATH_CPUS_PRESENT           _PATH_SYS_SYSTEM _PATH_SYS_CPU "/present"
 #define _PATH_CPUINFO                "/proc/cpuinfo"
 //#define _PATH_CPUINFO                "cpuinfo_debug"
 
@@ -17,48 +16,6 @@
 
 #define CPUINFO_CPU_STRING "processor"
 
-// https://www.kernel.org/doc/html/latest/core-api/cpu_hotplug.html
-int get_ncores_from_cpuinfo() {
-  // Examples:
-  // 0-271
-  // 0-7
-  // 0
-
-  int filelen;
-  char* buf;
-  if((buf = read_file(_PATH_CPUS_PRESENT, &filelen)) == NULL) {
-    printWarn("read_file: %s: %s\n", _PATH_CPUS_PRESENT, strerror(errno));
-    return UNKNOWN;
-  }
-
-  int ncores;
-  char* tmp1;
-  if((tmp1 = strstr(buf, "-")) == NULL) {
-    // file contains no - character, we assume that it contains 0,
-    // which means that the CPU contains only one core
-    return 1;
-  }
-  else {
-    tmp1++;
-  }
-  char* tmp2 = strstr(buf, "\n");
-  char ncores_str[filelen];
-  memset(ncores_str, 0, sizeof(char) * filelen);
-  memcpy(ncores_str, tmp1, tmp2-tmp1);
-
-  char* end;
-  errno = 0;
-  ncores = strtol(ncores_str, &end, 10) + 1;
-  if(errno != 0) {
-    printWarn("strtol: %s:\n", strerror(errno));
-    return UNKNOWN;
-  }
-
-  free(buf);
-
-  return ncores;
-}
-
 long parse_cpuinfo_field(char* buf, char* field_str, int field_base) {
   char* tmp = strstr(buf, field_str);
   if(tmp == NULL) return -1;

src/common/args.c

@@ -25,6 +25,7 @@ struct args_struct {
   bool debug_flag;
   bool help_flag;
   bool raw_flag;
+  bool accurate_pp;
   bool full_cpu_name_flag;
   bool logo_long;
   bool logo_short;
@@ -46,6 +47,7 @@ const char args_chr[] = {
   /* [ARG_LOGO_SHORT]     = */ 2,
   /* [ARG_LOGO_INTEL_NEW] = */ 3,
   /* [ARG_LOGO_INTEL_OLD] = */ 4,
+  /* [ARG_ACCURATE_PP]    = */ 5,
   /* [ARG_DEBUG]          = */ 'd',
   /* [ARG_VERBOSE]        = */ 'v',
   /* [ARG_VERSION]        = */ 'V',
@@ -61,6 +63,7 @@ const char *args_str[] = {
   /* [ARG_LOGO_SHORT]     = */ "logo-short",
   /* [ARG_LOGO_INTEL_NEW] = */ "logo-intel-new",
   /* [ARG_LOGO_INTEL_OLD] = */ "logo-intel-old",
+  /* [ARG_ACCURATE_PP]    = */ "accurate-pp",
   /* [ARG_DEBUG]          = */ "debug",
   /* [ARG_VERBOSE]        = */ "verbose",
   /* [ARG_VERSION]        = */ "version",
@@ -92,6 +95,10 @@ bool show_raw() {
   return args.raw_flag;
 }
 
+bool accurate_pp() {
+  return args.accurate_pp;
+}
+
 bool show_full_cpu_name() {
   return args.full_cpu_name_flag;
 }
@@ -211,12 +218,13 @@ char* build_short_options() {
   memset(str, 0, sizeof(char) * (len*2 + 1));
 
 #ifdef ARCH_X86
-  sprintf(str, "%c:%c:%c%c%c%c%c%c%c%c%c%c",
+  sprintf(str, "%c:%c:%c%c%c%c%c%c%c%c%c%c%c",
   c[ARG_STYLE], c[ARG_COLOR], c[ARG_HELP],
   c[ARG_RAW], c[ARG_FULLCPUNAME],
   c[ARG_LOGO_SHORT], c[ARG_LOGO_LONG],
   c[ARG_LOGO_INTEL_NEW], c[ARG_LOGO_INTEL_OLD],
-  c[ARG_DEBUG], c[ARG_VERBOSE], c[ARG_VERSION]);
+  c[ARG_ACCURATE_PP], c[ARG_DEBUG], c[ARG_VERBOSE],
+  c[ARG_VERSION]);
 #else
   sprintf(str, "%c:%c:%c%c%c%c%c%c",
   c[ARG_STYLE], c[ARG_COLOR], c[ARG_HELP],
@@ -235,6 +243,7 @@ bool parse_args(int argc, char* argv[]) {
 
   bool color_flag = false;
   args.debug_flag = false;
+  args.accurate_pp = false;
   args.full_cpu_name_flag = false;
   args.raw_flag = false;
   args.verbose_flag = false;
@@ -256,6 +265,7 @@ bool parse_args(int argc, char* argv[]) {
 #ifdef ARCH_X86
     {args_str[ARG_LOGO_INTEL_NEW], no_argument,       0, args_chr[ARG_LOGO_INTEL_NEW] },
     {args_str[ARG_LOGO_INTEL_OLD], no_argument,       0, args_chr[ARG_LOGO_INTEL_OLD] },
+    {args_str[ARG_ACCURATE_PP],    no_argument,       0, args_chr[ARG_ACCURATE_PP]    },
     {args_str[ARG_FULLCPUNAME],    no_argument,       0, args_chr[ARG_FULLCPUNAME]    },
     {args_str[ARG_RAW],            no_argument,       0, args_chr[ARG_RAW]            },
 #endif
@@ -296,6 +306,9 @@ bool parse_args(int argc, char* argv[]) {
     else if(opt == args_chr[ARG_HELP]) {
       args.help_flag  = true;
     }
+    else if(opt == args_chr[ARG_ACCURATE_PP]) {
+       args.accurate_pp = true;
+    }
     else if(opt == args_chr[ARG_FULLCPUNAME]) {
        args.full_cpu_name_flag = true;
     }
@@ -349,6 +362,13 @@ bool parse_args(int argc, char* argv[]) {
     args.logo_long = false;
   }
 
+#if defined(ARCH_X86) && ! defined(__linux__)
+  if(args.accurate_pp) {
+    printWarn("%s option is valid only in Linux x86_64", args_str[ARG_ACCURATE_PP]);
+    args.help_flag  = true;
+  }
+#endif
+
   // Leave log level untouched after returning
   set_log_level(false);
 

src/common/args.h

@@ -28,6 +28,7 @@ enum {
   ARG_LOGO_SHORT,
   ARG_LOGO_INTEL_NEW,
   ARG_LOGO_INTEL_OLD,
+  ARG_ACCURATE_PP,
   ARG_DEBUG,
   ARG_VERBOSE,
   ARG_VERSION
@@ -41,6 +42,7 @@ extern const char *args_str[];
 int max_arg_str_length();
 bool parse_args(int argc, char* argv[]);
 bool show_help();
+bool accurate_pp();
 bool show_full_cpu_name();
 bool show_logo_long();
 bool show_logo_short();

src/common/ascii.h

@@ -218,6 +218,24 @@ $C1    kMMMMMMMMMMMMMMMMMMMMMMd    \
 $C1     'KMMMMMMMWXXWMMMMMMMk.     \
 $C1       \"cooc\"*    \"*coo'\"       "
 
+#define ASCII_ALLWINNER \
+"$C1                                               \
+$C1                #################              \
+$C1          .########             #####    ####  \
+$C1       ######                        #######   \
+$C1    #####.    ##             ..##     ####.    \
+$C1  .####      ####          #####     ####      \
+$C1 ####       ## ###          ###.   #####  .    \
+$C1####       ##   ## ####   .###### ####*   .    \
+$C1###       ##  ##.###  ## #### .######          \
+$C1###      #.##     ###  #####   #####    .      \
+$C1###     ###        ### .###     ###    .       \
+$C1 #### ###          ####             #.         \
+$C1   ####                          #*            \
+$C1      #####                 ##.                \
+$C1            ###########.                       \
+$C1                                               "
+
 // --------------------- LONG LOGOS ------------------------- //
 #define ASCII_AMD_L \
 "$C1                                                              \
@@ -317,7 +335,9 @@ asciiL logo_kirin       = { ASCII_KIRIN,       53, 12, false, {C_FG_RED},
 asciiL logo_broadcom    = { ASCII_BROADCOM,    44, 19, false, {C_FG_WHITE, C_FG_RED},             {C_FG_WHITE,   C_FG_RED}     };
 asciiL logo_arm         = { ASCII_ARM,         42,  5, false, {C_FG_CYAN},                        {C_FG_WHITE,   C_FG_CYAN}    };
 asciiL logo_ibm         = { ASCII_IBM,         42,  9, false, {C_FG_CYAN, C_FG_WHITE},            {C_FG_CYAN,    C_FG_WHITE}   };
-asciiL logo_apple       = { ASCII_APPLE,       32, 17, false, {C_FG_WHITE},                       {C_FG_B_BLACK, C_FG_B_WHITE} };
+asciiL logo_apple       = { ASCII_APPLE,       32, 17, false, {C_FG_WHITE},                       {C_FG_CYAN,    C_FG_B_WHITE} };
+asciiL logo_allwinner   = { ASCII_ALLWINNER,   47, 16, false, {C_FG_CYAN},                        {C_FG_B_BLACK, C_FG_B_CYAN } };
+
 // Long variants          | ----------------------------------------------------------------------------------------------------|
 asciiL logo_amd_l       = { ASCII_AMD_L,       62, 19, true,  {C_BG_WHITE, C_BG_GREEN},           {C_FG_WHITE, C_FG_GREEN}     };
 asciiL logo_intel_l     = { ASCII_INTEL_L,     62, 19, true,  {C_BG_CYAN, C_BG_WHITE},            {C_FG_CYAN,  C_FG_WHITE}     };

src/common/cpu.c

@@ -150,7 +150,7 @@ char* get_str_freq(struct frequency* freq) {
   char* string = emalloc(sizeof(char)*size);
   memset(string, 0, sizeof(char)*size);
 
-  if(freq->max == UNKNOWN_FREQ || freq->max < 0)
+  if(freq->max == UNKNOWN_DATA || freq->max < 0)
     snprintf(string,strlen(STRING_UNKNOWN)+1,STRING_UNKNOWN);
   else if(freq->max >= 1000)
     snprintf(string,size,"%.3f "STRING_GIGAHERZ,(float)(freq->max)/1000);

src/common/cpu.h

@@ -19,6 +19,7 @@ enum {
   CPU_VENDOR_HUAWUEI,
   CPU_VENDOR_SAMSUNG,
   CPU_VENDOR_MARVELL,
+  CPU_VENDOR_PHYTIUM,
 // OTHERS
   CPU_VENDOR_UNKNOWN,
   CPU_VENDOR_INVALID
@@ -34,7 +35,7 @@ enum {
   HV_VENDOR_INVALID
 };
 
-#define UNKNOWN_FREQ -1
+#define UNKNOWN_DATA -1
 #define CPU_NAME_MAX_LENGTH 64
 
 typedef int32_t VENDOR;
@@ -71,8 +72,8 @@ struct topology {
   int32_t total_cores;  
   struct cache* cach;
 #if defined(ARCH_X86) || defined(ARCH_PPC)
-  uint32_t physical_cores;
-  uint32_t logical_cores;
+  int32_t physical_cores;
+  int32_t logical_cores;
   uint32_t sockets;
   uint32_t smt_supported; // Number of SMT that CPU supports (equal to smt_available if SMT is enabled)
 #ifdef ARCH_X86

src/common/global.c

@@ -58,9 +58,9 @@ void printBug(const char *fmt, ...) {
   va_end(args);
   fprintf(stderr,RED "[ERROR]: "RESET "%s\n",buffer);
 #if defined(ARCH_X86) || defined(ARCH_PPC)
-  fprintf(stderr,"Please, create a new issue with this error message and the output of 'cpufetch --debug' on https://github.com/Dr-Noob/cpufetch/issues\n");
+  fprintf(stderr, "Please, create a new issue with this error message, the output of 'cpufetch' and 'cpufetch --debug' on https://github.com/Dr-Noob/cpufetch/issues\n");
 #elif ARCH_ARM
-  fprintf(stderr,"Please, create a new issue with this error message, your smartphone/computer model and the output of 'cpufetch --debug' on https://github.com/Dr-Noob/cpufetch/issues\n");
+  fprintf(stderr, "Please, create a new issue with this error message, your smartphone/computer model, the output of 'cpufetch --verbose' and 'cpufetch --debug' on https://github.com/Dr-Noob/cpufetch/issues\n");
 #endif
 }
 
@@ -111,3 +111,15 @@ void* ecalloc(size_t nmemb, size_t size) {
 
   return ptr;
 }
+
+void* erealloc(void *ptr, size_t size) {
+  void* newptr = realloc(ptr, size);
+
+  if(newptr == NULL) {
+    printErr("realloc failed: %s", strerror(errno));
+    exit(1);
+  }
+
+  return newptr;
+}
+

src/common/global.h

@@ -15,5 +15,6 @@ int max(int a, int b);
 char *strremove(char *str, const char *sub);
 void* emalloc(size_t size);
 void* ecalloc(size_t nmemb, size_t size);
+void* erealloc(void *ptr, size_t size);
 
 #endif

src/common/main.c

@@ -33,7 +33,7 @@
   static const char* OS_STR = "Unknown OS";
 #endif
 
-static const char* VERSION = "1.00";
+static const char* VERSION = "1.02";
 
 void print_help(char *argv[]) {
   const char **t = args_str;
@@ -57,6 +57,9 @@ void print_help(char *argv[]) {
   printf("      --%s %*s Show the long version of the logo\n", t[ARG_LOGO_LONG], (int) (max_len-strlen(t[ARG_LOGO_LONG])), "");
   printf("  -%c, --%s %*s Print extra information (if available) about how cpufetch tried fetching information\n", c[ARG_VERBOSE], t[ARG_VERBOSE], (int) (max_len-strlen(t[ARG_VERBOSE])), "");
 #ifdef ARCH_X86
+#ifdef __linux__
+  printf("      --%s %*s Compute the peak performance accurately (measure the CPU frequency instead of using the maximum)\n", t[ARG_ACCURATE_PP], (int) (max_len-strlen(t[ARG_ACCURATE_PP])), "");
+#endif
   printf("      --%s %*s Show the old Intel logo\n", t[ARG_LOGO_INTEL_OLD], (int) (max_len-strlen(t[ARG_LOGO_INTEL_OLD])), "");
   printf("      --%s %*s Show the new Intel logo\n", t[ARG_LOGO_INTEL_NEW], (int) (max_len-strlen(t[ARG_LOGO_INTEL_NEW])), "");
   printf("  -%c, --%s %*s Show the full CPU name (do not abbreviate it)\n", c[ARG_FULLCPUNAME], t[ARG_FULLCPUNAME], (int) (max_len-strlen(t[ARG_FULLCPUNAME])), "");
@@ -133,6 +136,7 @@ int main(int argc, char* argv[]) {
     return EXIT_SUCCESS;
   }
 
+  // TODO: This should be moved to the end of args.c
   if(show_raw()) {
   #ifdef ARCH_X86
     print_version();

src/common/printer.c

@@ -353,6 +353,8 @@ void choose_ascii_art(struct ascii* art, struct color** cs, struct terminal* ter
     art->art = &logo_broadcom;
   else if(art->vendor == SOC_VENDOR_APPLE)
     art->art = &logo_apple;
+  else if(art->vendor == SOC_VENDOR_ALLWINNER)
+    art->art = &logo_allwinner;
   else {
     art->art = choose_ascii_art_aux(&logo_arm_l, &logo_arm, term, lf);
   }
@@ -498,48 +500,62 @@ bool print_cpufetch_x86(struct cpuInfo* cpu, STYLE s, struct color** cs, struct
     return false;
 
   art->new_intel_logo = choose_new_intel_logo(cpu);
+
+  // Step 1. Retrieve attributes (if some structures are NULL, like topo
+  //         or cache, do not try to retrieve them)
+  uint32_t socket_num = 1;
+  char* l1i, *l1d, *l2, *l3, *n_cores, *n_cores_dual, *sockets;
+  l1i = l1d = l2 = l3 = n_cores = n_cores_dual = sockets = NULL;
+
   char* uarch = get_str_uarch(cpu);
   char* manufacturing_process = get_str_process(cpu);
-  char* sockets = get_str_sockets(cpu->topo);
   char* max_frequency = get_str_freq(cpu->freq);
-  char* n_cores = get_str_topology(cpu, cpu->topo, false);
-  char* n_cores_dual = get_str_topology(cpu, cpu->topo, true);
   char* cpu_name = get_str_cpu_name(cpu, fcpuname);
   char* avx = get_str_avx(cpu);
   char* fma = get_str_fma(cpu);
-
-  char* l1i = get_str_l1i(cpu->cach);
-  char* l1d = get_str_l1d(cpu->cach);
-  char* l2 = get_str_l2(cpu->cach);
-  char* l3 = get_str_l3(cpu->cach);
   char* pp = get_str_peak_performance(cpu->peak_performance);
 
-  setAttribute(art,ATTRIBUTE_NAME,cpu_name);
+  if(cpu->topo != NULL) {
+    sockets = get_str_sockets(cpu->topo);
+    n_cores = get_str_topology(cpu, cpu->topo, false);
+    n_cores_dual = get_str_topology(cpu, cpu->topo, true);
+  }
+
+  if(cpu->cach != NULL) {
+    l1i = get_str_l1i(cpu->cach);
+    l1d = get_str_l1d(cpu->cach);
+    l2 = get_str_l2(cpu->cach);
+    l3 = get_str_l3(cpu->cach);
+  }
+
+  // Step 2. Set attributes
+  setAttribute(art, ATTRIBUTE_NAME, cpu_name);
   if(cpu->hv->present) {
     setAttribute(art, ATTRIBUTE_HYPERVISOR, cpu->hv->hv_name);
   }
-  setAttribute(art,ATTRIBUTE_UARCH,uarch);
-  setAttribute(art,ATTRIBUTE_TECHNOLOGY,manufacturing_process);
-  setAttribute(art,ATTRIBUTE_FREQUENCY,max_frequency);
-  uint32_t socket_num = get_nsockets(cpu->topo);
+  setAttribute(art, ATTRIBUTE_UARCH, uarch);
+  setAttribute(art, ATTRIBUTE_TECHNOLOGY, manufacturing_process);
+  setAttribute(art, ATTRIBUTE_FREQUENCY, max_frequency);
+  if(cpu->topo != NULL) {
+    socket_num = get_nsockets(cpu->topo);
     if (socket_num > 1) {
       setAttribute(art, ATTRIBUTE_SOCKETS, sockets);
-    setAttribute(art, ATTRIBUTE_NCORES,n_cores);
+      setAttribute(art, ATTRIBUTE_NCORES, n_cores);
       setAttribute(art, ATTRIBUTE_NCORES_DUAL, n_cores_dual);
     }
     else {
-    setAttribute(art,ATTRIBUTE_NCORES,n_cores);
+      setAttribute(art, ATTRIBUTE_NCORES, n_cores);
     }
-  setAttribute(art,ATTRIBUTE_AVX,avx);
-  setAttribute(art,ATTRIBUTE_FMA,fma);
-  setAttribute(art,ATTRIBUTE_L1i,l1i);
-  setAttribute(art,ATTRIBUTE_L1d,l1d);
-  setAttribute(art,ATTRIBUTE_L2,l2);
-  if(l3 != NULL) {
-    setAttribute(art,ATTRIBUTE_L3,l3);
   }
-  setAttribute(art,ATTRIBUTE_PEAK,pp);
+  setAttribute(art, ATTRIBUTE_AVX, avx);
+  setAttribute(art, ATTRIBUTE_FMA, fma);
+  if(l1i != NULL) setAttribute(art, ATTRIBUTE_L1i, l1i);
+  if(l1d != NULL) setAttribute(art, ATTRIBUTE_L1d, l1d);
+  if(l2 != NULL) setAttribute(art, ATTRIBUTE_L2, l2);
+  if(l3 != NULL) setAttribute(art, ATTRIBUTE_L3, l3);
+  setAttribute(art, ATTRIBUTE_PEAK, pp);
 
+  // Step 3. Print output
   const char** attribute_fields = ATTRIBUTE_FIELDS;
   uint32_t longest_attribute = longest_attribute_length(art, attribute_fields);
   uint32_t longest_field = longest_field_length(art, longest_attribute);
@@ -571,8 +587,8 @@ bool print_cpufetch_x86(struct cpuInfo* cpu, STYLE s, struct color** cs, struct
   free(art);
 
   if(cs != NULL) free_colors_struct(cs);
-  free_cache_struct(cpu->cach);
-  free_topo_struct(cpu->topo);
+  if(cpu->cach != NULL) free_cache_struct(cpu->cach);
+  if(cpu->topo != NULL) free_topo_struct(cpu->topo);
   free_freq_struct(cpu->freq);
   free_cpuinfo_struct(cpu);
 
@@ -586,6 +602,7 @@ bool print_cpufetch_ppc(struct cpuInfo* cpu, STYLE s, struct color** cs, struct
   if(art == NULL)
     return false;
 
+  // Step 1. Retrieve attributes
   char* uarch = get_str_uarch(cpu);
   char* manufacturing_process = get_str_process(cpu);
   char* sockets = get_str_sockets(cpu->topo);
@@ -601,6 +618,7 @@ bool print_cpufetch_ppc(struct cpuInfo* cpu, STYLE s, struct color** cs, struct
   char* l3 = get_str_l3(cpu->cach);
   char* pp = get_str_peak_performance(cpu->peak_performance);
 
+  // Step 2. Set attributes
   if(cpu_name != NULL) {
     setAttribute(art,ATTRIBUTE_NAME,cpu_name);
   }
@@ -625,6 +643,7 @@ bool print_cpufetch_ppc(struct cpuInfo* cpu, STYLE s, struct color** cs, struct
   }
   setAttribute(art,ATTRIBUTE_PEAK,pp);
 
+  // Step 3. Print output
   const char** attribute_fields = ATTRIBUTE_FIELDS;
   uint32_t longest_attribute = longest_attribute_length(art, attribute_fields);
   uint32_t longest_field = longest_field_length(art, longest_attribute);

src/common/udev.c

@@ -2,6 +2,48 @@
 #include "global.h"
 #include "cpu.h"
 
+// https://www.kernel.org/doc/html/latest/core-api/cpu_hotplug.html
+int get_ncores_from_cpuinfo() {
+  // Examples:
+  // 0-271
+  // 0-7
+  // 0
+
+  int filelen;
+  char* buf;
+  if((buf = read_file(_PATH_CPUS_PRESENT, &filelen)) == NULL) {
+    printWarn("read_file: %s: %s\n", _PATH_CPUS_PRESENT, strerror(errno));
+    return -1;
+  }
+
+  int ncores;
+  char* tmp1;
+  if((tmp1 = strstr(buf, "-")) == NULL) {
+    // file contains no - character, we assume that it contains 0,
+    // which means that the CPU contains only one core
+    return 1;
+  }
+  else {
+    tmp1++;
+  }
+  char* tmp2 = strstr(buf, "\n");
+  char ncores_str[filelen];
+  memset(ncores_str, 0, sizeof(char) * filelen);
+  memcpy(ncores_str, tmp1, tmp2-tmp1);
+
+  char* end;
+  errno = 0;
+  ncores = strtol(ncores_str, &end, 10) + 1;
+  if(errno != 0) {
+    printWarn("strtol: %s:\n", strerror(errno));
+    return -1;
+  }
+
+  free(buf);
+
+  return ncores;
+}
+
 char* read_file(char* path, int* len) {
   int fd = open(path, O_RDONLY);
 
@@ -12,13 +54,18 @@ char* read_file(char* path, int* len) {
   //File exists, read it
   int bytes_read = 0;
   int offset = 0;
-  int block = 128;
-  char* buf = emalloc(sizeof(char)*DEFAULT_FILE_SIZE);
-  memset(buf, 0, sizeof(char)*DEFAULT_FILE_SIZE);
+  int block = 1024;
+  int buf_size = block * 4;
+  char* buf = emalloc(sizeof(char) * buf_size);
 
-  while (  (bytes_read = read(fd, buf+offset, block)) > 0 ) {
+  while ((bytes_read = read(fd, buf+offset, block)) > 0) {
     offset += bytes_read;
+    if(offset + block > buf_size) {
+      buf = erealloc(buf, sizeof(char) * (buf_size + block));
+      buf_size += block;
     }
+  }
+  buf[offset] = '\0';
 
   if (close(fd) == -1) {
     return NULL;
@@ -33,7 +80,7 @@ long get_freq_from_file(char* path) {
   char* buf;
   if((buf = read_file(path, &filelen)) == NULL) {
     printWarn("Could not open '%s'", path);
-    return UNKNOWN_FREQ;
+    return UNKNOWN_DATA;
   }
 
   char* end;
@@ -42,7 +89,7 @@ long get_freq_from_file(char* path) {
   if(errno != 0) {
     printBug("strtol: %s", strerror(errno));
     free(buf);
-    return UNKNOWN_FREQ;
+    return UNKNOWN_DATA;
   }
 
   // We will be getting the frequency in KHz
@@ -50,7 +97,7 @@ long get_freq_from_file(char* path) {
   // greater than 10 GHz or less than 100 MHz
   if(ret > 10000 * 1000 || ret <  100 * 1000) {
     printBug("Invalid data was read from file '%s': %ld\n", path, ret);
-    return UNKNOWN_FREQ;
+    return UNKNOWN_DATA;
   }
 
   free(buf);

src/common/udev.h

@@ -23,10 +23,10 @@
 #define _PATH_CACHE_L3          "/cache/index3"
 #define _PATH_CACHE_SIZE        "/size"
 #define _PATH_CACHE_SHARED_MAP  "/shared_cpu_map"
+#define _PATH_CPUS_PRESENT           _PATH_SYS_SYSTEM _PATH_SYS_CPU "/present"
 
 #define _PATH_FREQUENCY_MAX_LEN 100
 #define _PATH_CACHE_MAX_LEN     200
-#define DEFAULT_FILE_SIZE       4096
 
 char* read_file(char* path, int* len);
 long get_max_freq_from_file(uint32_t core);
@@ -36,5 +36,6 @@ long get_l1d_cache_size(uint32_t core);
 long get_l2_cache_size(uint32_t core);
 long get_l3_cache_size(uint32_t core);
 int get_num_caches_by_level(struct cpuInfo* cpu, uint32_t level);
+int get_ncores_from_cpuinfo();
 
 #endif

src/ppc/ppc.c

@@ -139,7 +139,7 @@ int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t
    */
 
   //First check we have consistent data
-  if(freq == UNKNOWN_FREQ) {
+  if(freq == UNKNOWN_DATA) {
     return -1;
   }
 
@@ -181,9 +181,6 @@ struct cpuInfo* get_cpu_info() {
   feat->altivec = has_altivec(cpu->arch);
   cpu->peak_performance = get_peak_performance(cpu, cpu->topo, get_freq(cpu->freq));
 
-  if(cpu->cach == NULL || cpu->topo == NULL) {
-    return NULL;
-  }
   return cpu;
 }
 

src/x86/apic.c

@@ -313,14 +313,32 @@ bool fill_apic_ids(uint32_t* apic_ids, int n, bool x2apic_id) {
     usleep(1000);
   }
 #else
+  #ifdef __linux__
+  // In Linux we reset the affinity; first we get the original mask
+  cpu_set_t original_mask;
+  if(sched_getaffinity(0, sizeof(original_mask), &original_mask) == -1) {
+    printWarn("sched_getaffinity: %s", strerror(errno));
+    return false;
+  }
+  #endif
+
   for(int i=0; i < n; i++) {
     if(!bind_to_cpu(i)) {
-      printErr("Failed binding to CPU %d", i);
+      printErr("Failed binding the process to CPU %d", i);
       return false;
     }
     apic_ids[i] = get_apic_id(x2apic_id);
   }
+
+  #ifdef __linux__
+  // With the original mask previosly retrieved, we reset the affinity
+  if (sched_setaffinity (0, sizeof(original_mask), &original_mask) == -1) {
+    printWarn("sched_setaffinity: %s", strerror(errno));
+    return false;
+  }
+  #endif
 #endif
+
   return true;
 }
 

src/x86/cpuid.c

@@ -15,8 +15,10 @@
 #include "cpuid.h"
 #include "cpuid_asm.h"
 #include "../common/global.h"
+#include "../common/args.h"
 #include "apic.h"
 #include "uarch.h"
+#include "freq/freq.h"
 
 #define CPU_VENDOR_INTEL_STRING "GenuineIntel"
 #define CPU_VENDOR_AMD_STRING   "AuthenticAMD"
@@ -174,10 +176,10 @@ struct uarch* get_cpu_uarch(struct cpuInfo* cpu) {
   uint32_t family = (eax >> 8) & 0xF;
   uint32_t efamily = (eax >> 20) & 0xFF;
 
-  return get_uarch_from_cpuid(cpu, efamily, family, emodel, model, (int)stepping);
+  return get_uarch_from_cpuid(cpu, eax, efamily, family, emodel, model, (int)stepping);
 }
 
-int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t freq) {
+int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t max_freq, bool accurate_pp) {
   /*
    * PP = PeakPerformance
    * SP = SinglePrecision
@@ -190,8 +192,20 @@ int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t
    * 16(If AVX512), 8(If AVX), 4(If SSE) *
    */
 
+  int64_t freq;
+#ifdef __linux__
+  if(accurate_pp)
+    freq = measure_frequency(cpu);
+  else
+    freq = max_freq;
+#else
+  // Silence compiler warning
+  (void)(accurate_pp);
+  freq = max_freq;
+#endif
+
   //First, check we have consistent data
-  if(freq == UNKNOWN_FREQ) {
+  if(freq == UNKNOWN_DATA || topo->logical_cores == UNKNOWN_DATA) {
     return -1;
   }
 
@@ -264,6 +278,9 @@ struct cpuInfo* get_cpu_info() {
   struct cpuInfo* cpu = emalloc(sizeof(struct cpuInfo));
   struct features* feat = emalloc(sizeof(struct features));
   cpu->feat = feat;
+  cpu->peak_performance = -1;
+  cpu->topo = NULL;
+  cpu->cach = NULL;
 
   bool *ptr = &(feat->AES);
   for(uint32_t i = 0; i < sizeof(struct features)/sizeof(bool); i++, ptr++) {
@@ -372,15 +389,20 @@ struct cpuInfo* get_cpu_info() {
     cpu->topology_extensions = (ecx >> 22) & 1;
   }
 
+  // If any field of the struct is NULL,
+  // return inmideately, as further functions
+  // require valid fields (cach, topo, etc)
   cpu->arch = get_cpu_uarch(cpu);
   cpu->freq = get_frequency_info(cpu);
-  cpu->cach = get_cache_info(cpu);
-  cpu->topo = get_topology_info(cpu, cpu->cach);
-  cpu->peak_performance = get_peak_performance(cpu, cpu->topo, get_freq(cpu->freq));
 
-  if(cpu->cach == NULL || cpu->topo == NULL) {
-    return NULL;
-  }
+  cpu->cach = get_cache_info(cpu);
+  if(cpu->cach == NULL) return cpu;
+
+  cpu->topo = get_topology_info(cpu, cpu->cach);
+  if(cpu->topo == NULL) return cpu;
+
+  cpu->peak_performance = get_peak_performance(cpu, cpu->topo, get_freq(cpu->freq), accurate_pp());
+
   return cpu;
 }
 
@@ -458,6 +480,16 @@ bool get_cache_topology_amd(struct cpuInfo* cpu, struct topology* topo) {
   return true;
 }
 
+void get_topology_from_udev(struct topology* topo) {
+  // TODO: To be improved in the future
+  topo->total_cores = get_ncores_from_cpuinfo();
+  topo->logical_cores = topo->total_cores;
+  topo->physical_cores = topo->total_cores;
+  topo->smt_available = 1;
+  topo->smt_supported = 1;
+  topo->sockets = 1;
+}
+
 // Main reference: https://software.intel.com/content/www/us/en/develop/articles/intel-64-architecture-processor-topology-enumeration.html
 // Very interesting resource: https://wiki.osdev.org/Detecting_CPU_Topology_(80x86)
 struct topology* get_topology_info(struct cpuInfo* cpu, struct cache* cach) {
@@ -487,7 +519,19 @@ struct topology* get_topology_info(struct cpuInfo* cpu, struct cache* cach) {
   switch(cpu->cpu_vendor) {
     case CPU_VENDOR_INTEL:
       if (cpu->maxLevels >= 0x00000004) {
-        get_topology_from_apic(cpu, topo);
+        bool toporet = get_topology_from_apic(cpu, topo);
+        if(!toporet) {
+          #ifdef __linux__
+            printWarn("Failed to retrieve topology from APIC, using udev...\n");
+            get_topology_from_udev(topo);
+          #else
+            printErr("Failed to retrieve topology from APIC, assumming default values...\n");
+            topo->logical_cores = UNKNOWN_DATA;
+            topo->physical_cores = UNKNOWN_DATA;
+            topo->smt_available = 1;
+            topo->smt_supported = 1;
+          #endif
+        }
       }
       else {
         printWarn("Can't read topology information from cpuid (needed level is 0x%.8X, max is 0x%.8X)", 0x00000001, cpu->maxLevels);
@@ -698,16 +742,16 @@ struct frequency* get_frequency_info(struct cpuInfo* cpu) {
   if(cpu->maxLevels < 0x00000016) {
     #if defined (_WIN32) || defined (__APPLE__)
       printWarn("Can't read frequency information from cpuid (needed level is 0x%.8X, max is 0x%.8X)", 0x00000016, cpu->maxLevels);
-      freq->base = UNKNOWN_FREQ;
-      freq->max = UNKNOWN_FREQ;
+      freq->base = UNKNOWN_DATA;
+      freq->max = UNKNOWN_DATA;
     #else
       printWarn("Can't read frequency information from cpuid (needed level is 0x%.8X, max is 0x%.8X). Using udev", 0x00000016, cpu->maxLevels);
-      freq->base = UNKNOWN_FREQ;
+      freq->base = UNKNOWN_DATA;
       freq->max = get_max_freq_from_file(0);
 
       if(freq->max == 0) {
         printWarn("Read max CPU frequency from udev and got 0 MHz");
-        freq->max = UNKNOWN_FREQ;
+        freq->max = UNKNOWN_DATA;
       }
     #endif
   }
@@ -724,7 +768,7 @@ struct frequency* get_frequency_info(struct cpuInfo* cpu) {
 
     if(freq->base == 0) {
       printWarn("Read base CPU frequency from CPUID and got 0 MHz");
-      freq->base = UNKNOWN_FREQ;
+      freq->base = UNKNOWN_DATA;
     }
     if(freq->max == 0) {
       printWarn("Read max CPU frequency from CPUID and got 0 MHz");
@@ -734,10 +778,10 @@ struct frequency* get_frequency_info(struct cpuInfo* cpu) {
 
         if(freq->max == 0) {
           printWarn("Read max CPU frequency from udev and got 0 MHz");
-          freq->max = UNKNOWN_FREQ;
+          freq->max = UNKNOWN_DATA;
         }
       #else
-        freq->max = UNKNOWN_FREQ;
+        freq->max = UNKNOWN_DATA;
       #endif
     }
   }
@@ -759,7 +803,11 @@ char* get_str_topology(struct cpuInfo* cpu, struct topology* topo, bool dual_soc
   int topo_sockets = dual_socket ? topo->sockets : 1;
   char* string;
 
-  if(topo->smt_supported > 1) {
+  if(topo->logical_cores == UNKNOWN_DATA) {
+    string = emalloc(sizeof(char) * (strlen(STRING_UNKNOWN) + 1));
+    strcpy(string, STRING_UNKNOWN);
+  }
+  else if(topo->smt_supported > 1) {
     // 4 for digits, 21 for ' cores (SMT disabled)' which is the longest possible output
     uint32_t max_size = 4+21+1;
     string = emalloc(sizeof(char) * max_size);

src/x86/freq/freq.c

@@ -0,0 +1,146 @@
+#define  _GNU_SOURCE
+#include <stdio.h>
+
+#include "../../common/global.h"
+#include "../uarch.h"
+#include "freq.h"
+#include "freq_nov.h"
+#include "freq_avx.h"
+#include "freq_avx512.h"
+
+#include <immintrin.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+
+#define MAX_NUMBER_THREADS         512
+#define FREQ_VECTOR_SIZE         1<<16
+
+struct freq_thread {
+  bool end;
+  bool measure;
+  double freq;
+};
+
+double vector_average_harmonic(double* v, int len) {
+  double acc = 0.0;
+  for(int i=0; i < len; i++) {
+    acc += 1 / v[i];
+  }
+  return len / acc;
+}
+
+void sleep_ms(int64_t ms) {
+  struct timespec ts;
+  ts.tv_sec = ms / 1000;
+  ts.tv_nsec = (ms % 1000) * 1000000;
+  nanosleep(&ts, &ts);
+}
+
+void* measure_freq(void *freq_ptr) {
+  struct freq_thread* freq = (struct freq_thread*) freq_ptr;
+
+  char* end = NULL;
+  char* line = NULL;
+  size_t len = 0;
+  ssize_t read;
+
+  int v = 0;
+  double* freq_vector = malloc(sizeof(double) * FREQ_VECTOR_SIZE);
+
+  while(!freq->end) {
+    if(!freq->measure) continue;
+
+    FILE* fp = fopen("/proc/cpuinfo", "r");
+    if(fp == NULL) return NULL;
+    while ((read = getline(&line, &len, fp)) != -1) {
+      if((line = strstr(line, "cpu MHz")) != NULL) {
+        line = strstr(line, "\t: ");
+        if(line == NULL) return NULL;
+        line += sizeof("\t: ") - 1;
+        double f = strtold(line, &end);
+        if(errno != 0) {
+          printf("strtol: %s", strerror(errno));
+          return NULL;
+        }
+
+        freq_vector[v] = f;
+        v++;
+      }
+    }
+    fclose(fp);
+    sleep_ms(500);
+  }
+
+  freq->freq = vector_average_harmonic(freq_vector, v);
+  printWarn("AVX2 measured freq=%f\n", freq->freq);
+
+  return NULL;
+}
+
+int64_t measure_frequency(struct cpuInfo* cpu) {
+  int ret;
+  int num_spaces;
+  struct freq_thread* freq_struct = malloc(sizeof(struct freq_thread));
+  freq_struct->end = false;
+  freq_struct->measure = false;
+
+  void* (*compute_function)(void*);
+
+  if(cpu->feat->AVX512 && vpus_are_AVX512(cpu)) {
+    printf("cpufetch is measuring the AVX512 frequency...");
+    compute_function = compute_avx512;
+    num_spaces = 45;
+  }
+  else if(cpu->feat->AVX || cpu->feat->AVX2) {
+    printf("cpufetch is measuring the AVX frequency...");
+    compute_function = compute_avx;
+    num_spaces = 42;
+  }
+  else {
+    printf("cpufetch is measuring the frequency (no vector instructions)...");
+    compute_function = compute_nov;
+    num_spaces = 63;
+  }
+
+  fflush(stdout);
+
+  pthread_t freq_t;
+  if(pthread_create(&freq_t, NULL, measure_freq, freq_struct)) {
+    fprintf(stderr, "Error creating thread\n");
+    return -1;
+  }
+
+  pthread_t* compute_th = malloc(sizeof(pthread_t) * cpu->topo->total_cores);
+  for(int i=0; i < cpu->topo->total_cores; i++) {
+    ret = pthread_create(&compute_th[i], NULL, compute_function, NULL);
+
+    if(ret != 0) {
+      fprintf(stderr, "Error creating thread\n");
+      return -1;
+    }
+  }
+
+  sleep_ms(500);
+  freq_struct->measure = true;
+
+  for(int i=0; i < cpu->topo->total_cores; i++) {
+    if(pthread_join(compute_th[i], NULL)) {
+      fprintf(stderr, "Error joining thread\n");
+      return -1;
+    }
+    freq_struct->end = true;
+  }
+
+  if(pthread_join(freq_t, NULL)) {
+    fprintf(stderr, "Error joining thread\n");
+    return -1;
+  }
+
+  printf("\r%*c", num_spaces, ' ');
+  return freq_struct->freq;
+}

src/x86/freq/freq.h

@@ -0,0 +1,12 @@
+#ifndef __FREQ__
+#define __FREQ__
+
+#include <stdint.h>
+#include "../../common/cpu.h"
+
+#define MEASURE_TIME_SECONDS         5
+#define LOOP_ITERS           100000000
+
+int64_t measure_frequency(struct cpuInfo* cpu);
+
+#endif

src/x86/freq/freq_avx.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <immintrin.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+#include <stdint.h>
+#include "freq.h"
+
+void* compute_avx() {
+  bool end = false;
+
+  struct timeval begin, now;
+
+  __m256 a[8];
+  __m256 b[8];
+
+  for(int i=0; i < 8; i++) {
+    a[i] = _mm256_set1_ps(1.5);
+    b[i] = _mm256_set1_ps(1.2);
+  }
+
+  gettimeofday(&begin, NULL);
+  while(!end) {
+    for(uint64_t i=0; i < LOOP_ITERS; i++) {
+      a[0] = _mm256_add_ps(a[0], b[0]);
+      a[1] = _mm256_add_ps(a[1], b[1]);
+      a[2] = _mm256_add_ps(a[2], b[2]);
+      a[3] = _mm256_add_ps(a[3], b[3]);
+      a[4] = _mm256_add_ps(a[4], b[4]);
+      a[5] = _mm256_add_ps(a[5], b[5]);
+      a[6] = _mm256_add_ps(a[6], b[6]);
+      a[7] = _mm256_add_ps(a[7], b[7]);
+    }
+
+    gettimeofday(&now, NULL);
+    double elapsed = (now.tv_sec - begin.tv_sec) + ((now.tv_usec - begin.tv_usec)/1000000.0);
+    end = elapsed >= (double) MEASURE_TIME_SECONDS;
+  }
+
+  FILE* fp = fopen("/dev/null", "w");
+  if(fp == NULL) {
+    printf("fopen: %s", strerror(errno));
+  }
+  else {
+    for(int i=0; i < 8; i++)
+      fprintf(fp, "%f", a[i][0]);
+    fclose(fp);
+  }
+
+  return NULL;
+}
+

src/x86/freq/freq_avx.h

@@ -0,0 +1,6 @@
+#ifndef __FREQ_AVX__
+#define __FREQ_AVX__
+
+void* compute_avx();
+
+#endif

src/x86/freq/freq_avx512.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <immintrin.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+#include <stdint.h>
+#include "freq.h"
+
+void* compute_avx512() {
+  bool end = false;
+
+  struct timeval begin, now;
+
+  __m512 a[8];
+  __m512 b[8];
+
+  for(int i=0; i < 8; i++) {
+    a[i] = _mm512_set1_ps(1.5);
+    b[i] = _mm512_set1_ps(1.2);
+  }
+
+  gettimeofday(&begin, NULL);
+  while(!end) {
+    for(uint64_t i=0; i < LOOP_ITERS; i++) {
+      a[0] = _mm512_add_ps(a[0], b[0]);
+      a[1] = _mm512_add_ps(a[1], b[1]);
+      a[2] = _mm512_add_ps(a[2], b[2]);
+      a[3] = _mm512_add_ps(a[3], b[3]);
+      a[4] = _mm512_add_ps(a[4], b[4]);
+      a[5] = _mm512_add_ps(a[5], b[5]);
+      a[6] = _mm512_add_ps(a[6], b[6]);
+      a[7] = _mm512_add_ps(a[7], b[7]);
+    }
+
+    gettimeofday(&now, NULL);
+    double elapsed = (now.tv_sec - begin.tv_sec) + ((now.tv_usec - begin.tv_usec)/1000000.0);
+    end = elapsed >= (double) MEASURE_TIME_SECONDS;
+  }
+
+  FILE* fp = fopen("/dev/null", "w");
+  if(fp == NULL) {
+    printf("fopen: %s", strerror(errno));
+  }
+  else {
+    for(int i=0; i < 8; i++)
+      fprintf(fp, "%f", a[i][0]);
+    fclose(fp);
+  }
+
+  return NULL;
+}
+

src/x86/freq/freq_avx512.h

@@ -0,0 +1,6 @@
+#ifndef __FREQ_AVX512__
+#define __FREQ_AVX512__
+
+void* compute_avx512();
+
+#endif

src/x86/freq/freq_nov.c

@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <immintrin.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+#include <stdint.h>
+#include "freq.h"
+
+void* compute_nov() {
+  bool end = false;
+
+  struct timeval begin, now;
+
+  float a = 1.5;
+  float b = 1.2;
+  float c = 0.0;
+
+  gettimeofday(&begin, NULL);
+  while(!end) {
+    for(uint64_t i=0; i < LOOP_ITERS; i++) {
+      c = a * b;
+    }
+
+    gettimeofday(&now, NULL);
+    double elapsed = (now.tv_sec - begin.tv_sec) + ((now.tv_usec - begin.tv_usec)/1000000.0);
+    end = elapsed >= (double) MEASURE_TIME_SECONDS;
+  }
+
+  FILE* fp = fopen("/dev/null", "w");
+  if(fp == NULL) {
+    printf("fopen: %s", strerror(errno));
+  }
+  else {
+    fprintf(fp, "%f", c);
+    fclose(fp);
+  }
+
+  return NULL;
+}
+

src/x86/freq/freq_nov.h

@@ -0,0 +1,6 @@
+#ifndef __FREQ_NO_VECTOR__
+#define __FREQ_NO_VECTOR__
+
+void* compute_nov();
+
+#endif

src/x86/uarch.c

@@ -78,7 +78,7 @@ enum {
   UARCH_SUNNY_COVE,
   UARCH_GOLDMONT_PLUS,
   UARCH_TREMONT,
-  UARCH_WILLOW_COVE,
+  UARCH_LAKEMONT,
   UARCH_COFFE_LAKE,
   UARCH_ITANIUM,
   UARCH_KNIGHTS_FERRY,
@@ -89,6 +89,8 @@ enum {
   UARCH_CEDAR_MILL,
   UARCH_ITANIUM2,
   UARCH_ICE_LAKE,
+  UARCH_TIGER_LAKE,
+  UARCH_ALDER_LAKE,
   // AMD //
   UARCH_AM486,
   UARCH_AM5X86,
@@ -147,7 +149,9 @@ struct uarch* get_uarch_from_cpuid_intel(uint32_t ef, uint32_t f, uint32_t em, u
   CHECK_UARCH(arch, 0,  5,  0,  4, NA, "P5 MMX",          UARCH_P5,              UNK)
   CHECK_UARCH(arch, 0,  5,  0,  7, NA, "P5 MMX",          UARCH_P5,              UNK)
   CHECK_UARCH(arch, 0,  5,  0,  8, NA, "P5 MMX",          UARCH_P5,              250)
+  CHECK_UARCH(arch, 0,  5,  0,  9,  0, "Lakemont",        UARCH_LAKEMONT,         32)
   CHECK_UARCH(arch, 0,  5,  0,  9, NA, "P5 MMX",          UARCH_P5,              UNK)
+  CHECK_UARCH(arch, 0,  5,  0, 10,  0, "Lakemont",        UARCH_LAKEMONT,         32)
   CHECK_UARCH(arch, 0,  6,  0,  0, NA, "P6 Pentium II",   UARCH_P6,              UNK)
   CHECK_UARCH(arch, 0,  6,  0,  1, NA, "P6 Pentium II",   UARCH_P6,              UNK) // process depends on core
   CHECK_UARCH(arch, 0,  6,  0,  2, NA, "P6 Pentium II",   UARCH_P6,              UNK)
@@ -218,13 +222,15 @@ struct uarch* get_uarch_from_cpuid_intel(uint32_t ef, uint32_t f, uint32_t em, u
   CHECK_UARCH(arch, 0,  6,  8,  5, NA, "Knights Mill",    UARCH_KNIGHTS_MILL,     14) // no spec update; only MSR_CPUID_table* so far
   CHECK_UARCH(arch, 0,  6,  8,  6, NA, "Tremont",         UARCH_TREMONT,          10) // LX*
   CHECK_UARCH(arch, 0,  6,  8, 10, NA, "Tremont",         UARCH_TREMONT,          10) // no spec update; only geekbench.com example
-  CHECK_UARCH(arch, 0,  6,  8, 12, NA, "Willow Cove",     UARCH_WILLOW_COVE,      10) // found only on en.wikichip.org
-  CHECK_UARCH(arch, 0,  6,  8, 13, NA, "Willow Cove",     UARCH_WILLOW_COVE,      10) // LX*
-  CHECK_UARCH(arch, 0,  6,  8, 14,  9, "Amber Lake",      UARCH_AMBER_LAKE,       14) // wikichip
+  CHECK_UARCH(arch, 0,  6,  8, 12, NA, "Tiger Lake",      UARCH_TIGER_LAKE,       10) // instlatx64
+  CHECK_UARCH(arch, 0,  6,  8, 13, NA, "Tiger Lake",      UARCH_TIGER_LAKE,       10) // instlatx64
+  // CHECK_UARCH(arch, 0,  6,  8, 14,  9, ...) It is not possible to determine uarch only from CPUID dump (can be Kaby Lake or Amber Lake)
   CHECK_UARCH(arch, 0,  6,  8, 14, 10, "Kaby Lake",       UARCH_KABY_LAKE,        14) // wikichip
   CHECK_UARCH(arch, 0,  6,  8, 14, 11, "Whiskey Lake",    UARCH_WHISKEY_LAKE,     14) // wikichip
   CHECK_UARCH(arch, 0,  6,  8, 14, 12, "Comet Lake",      UARCH_COMET_LAKE,       14) // wikichip
   CHECK_UARCH(arch, 0,  6,  9,  6, NA, "Tremont",         UARCH_TREMONT,          10) // LX*
+  CHECK_UARCH(arch, 0,  6,  9,  7, NA, "Alder Lake",      UARCH_ALDER_LAKE,       10) // wikichip
+  CHECK_UARCH(arch, 0,  6,  9, 10, NA, "Tremont",         UARCH_TREMONT,          10) // instlatx64
   CHECK_UARCH(arch, 0,  6,  9, 12, NA, "Tremont",         UARCH_TREMONT,          10) // LX*
   CHECK_UARCH(arch, 0,  6,  9, 13, NA, "Sunny Cove",      UARCH_SUNNY_COVE,       10) // LX*
   CHECK_UARCH(arch, 0,  6,  9, 14,  9, "Kaby Lake",       UARCH_KABY_LAKE,        14)
@@ -270,6 +276,7 @@ struct uarch* get_uarch_from_cpuid_amd(uint32_t ef, uint32_t f, uint32_t em, uin
   CHECK_UARCH(arch,  0,  4, NA, NA, NA, "Am5x86",      UARCH_AM5X86,     UNK)
   CHECK_UARCH(arch,  0,  5,  0,  6, NA, "K6",          UARCH_K6,         300)
   CHECK_UARCH(arch,  0,  5,  0,  7, NA, "K6",          UARCH_K6,         250) // *p from sandpile.org
+  CHECK_UARCH(arch,  0,  5,  0, 10, NA, "K7",          UARCH_K7,         130) // Geode NX
   CHECK_UARCH(arch,  0,  5,  0, 13, NA, "K6",          UARCH_K6,          80) // *p from sandpile.org
   CHECK_UARCH(arch,  0,  5, NA, NA, NA, "K6",          UARCH_K6,         UNK)
   CHECK_UARCH(arch,  0,  6,  0,  1, NA, "K7",          UARCH_K7,         250)
@@ -325,7 +332,7 @@ struct uarch* get_uarch_from_cpuid_amd(uint32_t ef, uint32_t f, uint32_t em, uin
   CHECK_UARCH(arch,  2, 15, NA, NA, NA, "Puma 2008",   UARCH_PUMA_2008,   65)
   CHECK_UARCH(arch,  3, 15, NA, NA, NA, "K10",         UARCH_K10,         32)
   CHECK_UARCH(arch,  5, 15, NA, NA, NA, "Bobcat",      UARCH_BOBCAT,      40)
-  CHECK_UARCH(arch,  6, 15,  0,  0, NA, "Bulldozer",   UARCH_BULLDOZER,   32) // iNAtlatx64 engr sample
+  CHECK_UARCH(arch,  6, 15,  0,  0, NA, "Bulldozer",   UARCH_BULLDOZER,   32) // instlatx64 engr sample
   CHECK_UARCH(arch,  6, 15,  0,  1, NA, "Bulldozer",   UARCH_BULLDOZER,   32)
   CHECK_UARCH(arch,  6, 15,  0,  2, NA, "Piledriver",  UARCH_PILEDRIVER,  32)
   CHECK_UARCH(arch,  6, 15,  1,  0, NA, "Piledriver",  UARCH_PILEDRIVER,  32)
@@ -333,20 +340,25 @@ struct uarch* get_uarch_from_cpuid_amd(uint32_t ef, uint32_t f, uint32_t em, uin
   CHECK_UARCH(arch,  6, 15,  3,  0, NA, "Steamroller", UARCH_STEAMROLLER, 28)
   CHECK_UARCH(arch,  6, 15,  3,  8, NA, "Steamroller", UARCH_STEAMROLLER, 28)
   CHECK_UARCH(arch,  6, 15,  4,  0, NA, "Steamroller", UARCH_STEAMROLLER, 28) // Software Optimization Guide (15h) says it has the same iNAt latencies as (6,15),(3,x).
-  CHECK_UARCH(arch,  6, 15,  6,  0, NA, "Excavator",   UARCH_EXCAVATOR,   28) // undocumented, but iNAtlatx64 samples
+  CHECK_UARCH(arch,  6, 15,  6,  0, NA, "Excavator",   UARCH_EXCAVATOR,   28) // undocumented, but instlatx64 samples
   CHECK_UARCH(arch,  6, 15,  6,  5, NA, "Excavator",   UARCH_EXCAVATOR,   28) // undocumented, but sample from Alexandros Couloumbis
   CHECK_UARCH(arch,  6, 15,  7,  0, NA, "Excavator",   UARCH_EXCAVATOR,   28)
   CHECK_UARCH(arch,  7, 15,  0,  0, NA, "Jaguar",      UARCH_JAGUAR,      28)
+  CHECK_UARCH(arch,  7, 15,  2,  6, NA, "Jaguar",      UARCH_JAGUAR,      28) // AMD Cato (Xbox One?)
   CHECK_UARCH(arch,  7, 15,  3,  0, NA, "Puma 2014",   UARCH_PUMA_2014,   28)
-  CHECK_UARCH(arch,  8, 15,  0,  0, NA, "Zen",         UARCH_ZEN,         14) // iNAtlatx64 engr sample
+  CHECK_UARCH(arch,  8, 15,  0,  0, NA, "Zen",         UARCH_ZEN,         14) // instlatx64 engr sample
   CHECK_UARCH(arch,  8, 15,  0,  1, NA, "Zen",         UARCH_ZEN,         14)
   CHECK_UARCH(arch,  8, 15,  0,  8, NA, "Zen+",        UARCH_ZEN_PLUS,    12)
-  CHECK_UARCH(arch,  8, 15,  1,  1, NA, "Zen",         UARCH_ZEN,         14) // found only on en.wikichip.org & iNAtlatx64 examples
+  CHECK_UARCH(arch,  8, 15,  1,  1, NA, "Zen",         UARCH_ZEN,         14) // found only on en.wikichip.org & instlatx64 examples
   CHECK_UARCH(arch,  8, 15,  1,  8, NA, "Zen+",        UARCH_ZEN_PLUS,    12) // found only on en.wikichip.org
+  CHECK_UARCH(arch,  8, 15,  2,  0, NA, "Zen",         UARCH_ZEN,         14) // Dali, found on instlatx64 and en.wikichip.org
   CHECK_UARCH(arch,  8, 15,  3,  1, NA, "Zen 2",       UARCH_ZEN2,         7) // found only on en.wikichip.org
+  CHECK_UARCH(arch,  8, 15,  4,  7, NA, "Zen 2",       UARCH_ZEN2,         7) // instlatx64 example (AMD 4700S)
+  CHECK_UARCH(arch,  8, 15,  5,  0, NA, "Zen",         UARCH_ZEN,         14) // instlatx64 example (Subor Z+)
   CHECK_UARCH(arch,  8, 15,  6,  0, NA, "Zen 2",       UARCH_ZEN2,         7) // undocumented, geekbench.com example
   CHECK_UARCH(arch,  8, 15,  6,  8, NA, "Zen 2",       UARCH_ZEN2,         7) // found on instlatx64
   CHECK_UARCH(arch,  8, 15,  7,  1, NA, "Zen 2",       UARCH_ZEN2,         7) // samples from Steven Noonan and instlatx64
+  CHECK_UARCH(arch, 10, 15,  0,  1, NA, "Zen 3",       UARCH_ZEN3,         7) // instlatx64
   CHECK_UARCH(arch, 10, 15,  2,  1, NA, "Zen 3",       UARCH_ZEN3,         7) // instlatx64
   CHECK_UARCH(arch, 10, 15,  5,  0, NA, "Zen 3",       UARCH_ZEN3,         7) // instlatx64
   UARCH_END
@@ -354,15 +366,29 @@ struct uarch* get_uarch_from_cpuid_amd(uint32_t ef, uint32_t f, uint32_t em, uin
   return arch;
 }
 
-struct uarch* get_uarch_from_cpuid(struct cpuInfo* cpu, uint32_t ef, uint32_t f, uint32_t em, uint32_t m, int s) {
-  if(cpu->cpu_vendor == CPU_VENDOR_INTEL)
+struct uarch* get_uarch_from_cpuid(struct cpuInfo* cpu, uint32_t dump, uint32_t ef, uint32_t f, uint32_t em, uint32_t m, int s) {
+  if(cpu->cpu_vendor == CPU_VENDOR_INTEL) {
+    if(dump == 0x000806E9) {
+      // It is not possible to determine uarch only from CPUID dump (can be Kaby Lake or Amber Lake)
+      struct uarch* arch = emalloc(sizeof(struct uarch));
+
+      if(strstr(cpu->cpu_name, "Y") != NULL) {
+        fill_uarch(arch, "Amber Lake", UARCH_AMBER_LAKE, 14);
+      }
+      else {
+        fill_uarch(arch, "Kaby Lake", UARCH_KABY_LAKE, 14);
+      }
+
+      return arch;
+    }
     return get_uarch_from_cpuid_intel(ef, f, em, m, s);
+  }
   else
     return get_uarch_from_cpuid_amd(ef, f, em, m, s);
 }
 
 bool vpus_are_AVX512(struct cpuInfo* cpu) {
-  return cpu->arch->uarch != UARCH_ICE_LAKE;
+  return cpu->arch->uarch != UARCH_ICE_LAKE && cpu->arch->uarch != UARCH_TIGER_LAKE;
 }
 
 bool is_knights_landing(struct cpuInfo* cpu) {
@@ -389,6 +415,7 @@ int get_number_of_vpus(struct cpuInfo* cpu) {
       case UARCH_KNIGHTS_MILL:
 
       case UARCH_ICE_LAKE:
+      case UARCH_TIGER_LAKE:
 
       // AMD
       case UARCH_ZEN2:
@@ -401,8 +428,9 @@ int get_number_of_vpus(struct cpuInfo* cpu) {
 
 bool choose_new_intel_logo_uarch(struct cpuInfo* cpu) {
   switch(cpu->arch->uarch) {
+    case UARCH_ALDER_LAKE:
     case UARCH_ROCKET_LAKE:
-    // TODO: case UARCH_TIGER_LAKE: missing?
+    case UARCH_TIGER_LAKE:
       return true;
     default:
       return false;

src/x86/uarch.h

@@ -7,7 +7,7 @@
 
 struct uarch;
 
-struct uarch* get_uarch_from_cpuid(struct cpuInfo* cpu, uint32_t ef, uint32_t f, uint32_t em, uint32_t m, int s);
+struct uarch* get_uarch_from_cpuid(struct cpuInfo* cpu, uint32_t dump, uint32_t ef, uint32_t f, uint32_t em, uint32_t m, int s);
 bool vpus_are_AVX512(struct cpuInfo* cpu);
 bool is_knights_landing(struct cpuInfo* cpu);
 int get_number_of_vpus(struct cpuInfo* cpu);