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[DEBUG] Critical bug-fix for Bullseye Toolchains (Fixes #89)
- Added patched `Makfile.patch` file that contains critical bug-fix for Glibc `2.31`. - Bug can explained as follows: On platforms where long double has the same ABI as double, glibc-2.31 defines long double functions as aliases for the corresponding double functions. The declarations of those functions in <math.h> are disabled to avoid problems with aliases having incompatible types, but GCC 10 now gives errors for incompatible types when the long double function is known to GCC as a built-in function, not just when there is an incompatible header declaration. More info. on this patch: https://sourceware.org/git/?p=glibc.git;a=patch;h=49348beafe9ba150c9bd48595b3f372299bddbb0;hp=cbd156990489568eb8c1b97ace3ad24fc784e049 - Added missing docs files.
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‎build-scripts/CI/CIBB_32b

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@@ -189,6 +189,12 @@ if [ ! -d "glibc-$GLIBC_VERSION" ]; then
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tar xf glibc-$GLIBC_VERSION.tar.bz2
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cd glibc-$GLIBC_VERSION || exit
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mkdir -p build
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# apply critical patch if Glibc 2.31 and GCC 10 series are being built
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if [[ "$GCCBASE_VERSION" =~ ^10.* ]] && [ "$GLIBC_VERSION" = "2.31" ]; then
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echo "Applying patch!"
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curl -o Makefile.patch https://raw.githubusercontent.com/abhiTronix/raspberry-pi-cross-compilers/master/patches/Makefile.patch
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mv Makefile.patch math/Makefile
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fi
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cd "$DOWNLOADDIR" || exit
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rm ./*.tar.*
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fi

‎build-scripts/CI/CIBB_64b

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tar xf glibc-$GLIBC_VERSION.tar.bz2
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cd glibc-$GLIBC_VERSION || exit
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mkdir -p build
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# apply critical patch if Glibc 2.31 and GCC 10 series are being built
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if [[ "$GCCBASE_VERSION" =~ ^10.* ]] && [ "$GLIBC_VERSION" = "2.31" ]; then
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echo "Applying patch!"
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curl -o Makefile.patch https://raw.githubusercontent.com/abhiTronix/raspberry-pi-cross-compilers/master/patches/Makefile.patch
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mv Makefile.patch math/Makefile
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fi
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cd "$DOWNLOADDIR" || exit
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rm ./*.tar.*
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fi

‎build-scripts/RTBuilder_32b

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tar xf glibc-$GLIBC_VERSION.tar.bz2
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cd glibc-$GLIBC_VERSION || exit
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mkdir -p build
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# apply critical patch if Glibc 2.31 and GCC 10 series are being built
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if [[ "$GCCBASE_VERSION" =~ ^10.* ]] && [ "$GLIBC_VERSION" = "2.31" ]; then
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echo "Applying patch!"
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curl -o Makefile.patch https://raw.githubusercontent.com/abhiTronix/raspberry-pi-cross-compilers/master/patches/Makefile.patch
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mv Makefile.patch math/Makefile
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fi
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cd "$DOWNLOADDIR" || exit
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rm ./*.tar.*
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fi

‎build-scripts/RTBuilder_64b

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tar xf glibc-$GLIBC_VERSION.tar.bz2
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cd glibc-$GLIBC_VERSION || exit
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mkdir -p build
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# apply critical patch if Glibc 2.31 and GCC 10 series are being built
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if [[ "$GCCBASE_VERSION" =~ ^10.* ]] && [ "$GLIBC_VERSION" = "2.31" ]; then
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echo "Applying patch!"
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curl -o Makefile.patch https://raw.githubusercontent.com/abhiTronix/raspberry-pi-cross-compilers/master/patches/Makefile.patch
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mv Makefile.patch math/Makefile
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fi
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cd "$DOWNLOADDIR" || exit
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rm ./*.tar.*
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fi

‎docs/cross-gcc-bullseye.md

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<!--
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===============================================
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Raspberry Pi Toolchains(raspberry-pi-cross-compilers): This project
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provides latest automated GCC Cross Compiler & Native (ARM & ARM64)
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build-scripts and precompiled standalone toolchains for Raspberry Pi.
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Copyright (C) 2020 Abhishek Thakur(@abhiTronix) <[email protected]>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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===============================================
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-->
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<br>
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<h1 align=center><img alt="Description" title="Toolchain Description" src="https://raw.githubusercontent.com/abhiTronix/Imbakup/master/Images/gcc/cross-gcc-buster.png"></h1>
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### TL'DR
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**What is this project?**
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> This project provides the Latest, CI maintained, Precompiled [**Raspberry Pi CPU optimized**](#optimization-flags-involved) GCC Cross & Native (ARM & ARM64) Compressed Standalone Toolchains, that is [**fastest to setup**](#e-toolchain-setup-documentation) and saves you tons of time and helps you to get quickly started with software development on Pi.
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**Who will benefit from the project?**
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> This project benefits everyone, from Professional Devs to a college research Student, looking for latest easy-to-use precompiled GCC toolchains for their Hobby Raspberry Pi project(s).
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<br>
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-------------------------
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<br>
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This project now utilizes powerful [**Github Actions**][git-action] CI(Continuous Integration) to auto-compile Compressed GCC Cross & Native ARM/ARM64 Toolchain binaries and thereby auto-deploy them to SourceForge repository.
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<h3 align=center><img alt="Workflow" title="Toolchain Builder Workflow" src="https://raw.githubusercontent.com/abhiTronix/Imbakup/master/Images/gcc/workflow.png"></h3>
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<br>
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-------------------------
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<br>
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## Toolchain Binaries description table:
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**Here's a reference table for various CI generated OS targetted precompiled Toolchain Binaries available with this project:**
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* **References:**
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* **Host OS:** on which the toolchain is executed/used.
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* **Target OS:** for which the toolchain generates code.
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<br>
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| Toolchains | Host OS | Target OS | Current Status | Precompiled GCC versions available |
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| :---------- | :--------: | :-------: | :--------: | :------------------------: |
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| **Raspberry Pi GCC Cross-Compiler Toolchains (Stretch)** | any x64/x86 Linux machine | Stretch **32-bit OS** (Debian Version 9) only | Stable/Production | 6.3.0, 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC Cross-Compiler Toolchains (Buster)** | any x64/x86 Linux machine | Buster **32-bit OS** (Debian Version 10) only | Stable/Production | 8.3.0, 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC Cross-Compiler Toolchains (Bullseye)** | any x64/x86 Linux machine | Bullseye **32-bit OS** (Debian Version 11) only | Stable/Production | 10.2.0, 10.3.0 |
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| **Raspberry Pi GCC Native-Compiler Toolchains (Stretch)** | Stretch **32-bit OS** (Debian Version 9) only | Stretch **32-bit OS** (Debian Version 9) only | Stable/Production | 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC Native-Compiler Toolchains (Buster)** | Buster **32-bit OS** (Debian Version 10) only | Buster **32-bit OS** (Debian Version 10) only | Stable/Production | 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC Native-Compiler Toolchains (Bullseye)** | Bullseye **32-bit OS** (Debian Version 11) only | Bullseye **32-bit OS** (Debian Version 11) only | Stable/Production | 10.3.0 |
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| **Raspberry Pi GCC 64-Bit Cross-Compiler Toolchains (Stretch)** | any x64/x86 Linux machine | Stretch **64-bit OS** (Debian Version 9) only | Stable/Production | 6.3.0, 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC 64-Bit Cross-Compiler Toolchains (Buster)** | any x64/x86 Linux machine | Buster **64-bit OS** (Debian Version 10) only | Stable/Production | 8.3.0, 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC 64-Bit Cross-Compiler Toolchains (Bullseye)** | any x64/x86 Linux machine | Bullseye **64-bit OS** (Debian Version 11) only | Stable/Production | 10.2.0, 10.3.0 |
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| **Raspberry Pi GCC 64-Bit Native-Compiler Toolchains (Stretch)** | Stretch **64-bit OS** (Debian Version 9) only | Stretch **64-bit OS** (Debian Version 9) only | Stable/Production | 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC 64-Bit Native-Compiler Toolchains (Buster)** | Buster **64-bit OS** (Debian Version 10) only | Buster **64-bit OS** (Debian Version 10) only | Stable/Production | 9.4.0, 10.3.0 |
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| **Raspberry Pi GCC 64-Bit Native-Compiler Toolchains (Bullseye)** | Bullseye **64-bit OS** (Debian Version 11) only | Bullseye **64-bit OS** (Debian Version 11) only | Stable/Production | 10.3.0 |
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| **Exclusive/Experimental Toolchains** | x86/x86_64 Pi Desktop | x86/x86_64 Pi Desktop | Beta/Experimental | 10.3.0 (x86), 10.3.0 (x86_64) |
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**Tip:** _To get the location of each Binary of this project on SourceForge, you can also check out [this Reference Tree](https://github.com/abhiTronix/raspberry-pi-cross-compilers/wiki/Toolchain-Binaries-Reference-Tree#toolchain-binaries-reference-tree)._
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<br>
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-------------------------
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<br>
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## Toolchain Setup Documentation:
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These precompiled toolchains setup requires just three easy steps - **Downloading, Extracting and Linking**:
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* #### [WIKI-Documentation (en-English)](https://github.com/abhiTronix/raspberry-pi-cross-compilers/wiki)
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<br>
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-------------------------
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<br>
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## Supported Toolchains Programming Languages:
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- C++
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- Fortran
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- C
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- Any other language support can be easily [compiled](#scroll-build-scripts).
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<br>
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-------------------------
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<br>
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## Supporting this Project
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**If these binaries helped you big time, please consider supporting it through any size donations.**
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[![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg?logo=paypal&style=for-the-badge)](https://paypal.me/AbhiTronix)
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***You can also share your [**thoughts**](https://sourceforge.net/projects/raspberry-pi-cross-compilers/reviews) or just drop a [star](https://github.com/abhiTronix/raspberry-pi-cross-compilers/stargazers).***
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<br>
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-------------------------
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<br>
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# Additional Information
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### Supported ARM Devices:
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- All Raspberry Pi hardware/versions/models are currently supported.
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- Any other ARM Device(such as android, IoT) with similar Hardware architecture(see [Optimization Flags](#optimization-flags-involved)) should also work.
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### Optimization Flags Involved:
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**These toolchains are built with these following system-specific LTO _(Link Time Optimization)_ flags, therefore you can easily take advantage of your Raspberry Pi's CPU specific features with these Toolchains while compiling your programs:**
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**Important:** The latest Raspberry Pi 4 uses a Broadcom BCM2711 SoC with a 1.5 GHz 64-bit quad-core ARM Cortex-A72 processor, that also have armv8-a architecture similar to Raspberry Pi 3B+, therefore it is also officially supported!
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| Raspberry Pi Board | Link Time Optimization Flags |
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|---|---|
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| Raspberry Pi - *Zero/W/WH & 1 Model A/B/A+/B+* | `-march=armv6 -mfloat-abi=hard -mfpu=vfp` |
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| Raspberry Pi - *2 & 3 Model A/B* | `-march=armv7-a -mfloat-abi=hard -mfpu=neon-vfpv4` |
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| Raspberry Pi - *3 & 4 Model A+/B+ & Compute 3/3-lite/3+ (32-Bit)* | `-march=armv8-a -mfloat-abi=hard -mfpu=neon-fp-armv8` |
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| Raspberry Pi - *3 & 4 Model A+/B+ & Compute 3/3-lite/3+ (64-Bit)* | `-march=armv8-a+fp+simd` |
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<br>
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-------------------------
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<br>
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## Citing
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**Here is a Bibtex entry you can use to cite this project in a publication:**
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```BibTeX
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@misc{raspberry-pi-cross-compilers,
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Title = {Raspberry Pi Toolchains},
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Author = {Abhishek Thakur},
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howpublished = {\url{https://github.com/abhiTronix/raspberry-pi-cross-compilers}},
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year = {2020}
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}
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```
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<br>
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-------------------------
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<br>
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## Copyright License
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**Copyright © 2020 abhiTronix**
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This Project source-code and its precompiled binaries are licensed under the [**GPLv3**][license] license.
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<br>
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-------------------------
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<br>
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## Acknowledgments
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Thank you,
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- [GNU project][gnu] for providing the latest source code.
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- [Raspberry Pi project][pi-project] for providing the latest kernel and docs.
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- [GitHub Actions][git-action] for making it easier to automate Toolchain Builder workflows.
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- [Sourceforge project][sf-project] for allowing me to publish these binaries.
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[downloads-badge]:https://img.shields.io/sourceforge/dt/raspberry-pi-cross-compilers?style=for-the-badge&logo=data:image/png;base64,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[license-badge]:https://img.shields.io/github/license/abhiTronix/raspberry-pi-cross-compilers.svg?style=for-the-badge
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[kofi-badge]:https://www.ko-fi.com/img/githubbutton_sm.svg
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[downloads]:https://sourceforge.net/projects/raspberry-pi-cross-compilers
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[license]:https://github.com/abhiTronix/raspberry-pi-cross-compilers/blob/master/LICENSE
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[kofi]:https://ko-fi.com/W7W8WTYO
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[gnu]:https://gcc.gnu.org/
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[pi-project]:https://www.raspberrypi.org/
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[sf-project]:https://sourceforge.net
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[git-action]:https://github.com/features/actions
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[tar]:https://www.gnu.org/software/tar/
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[pigz]:https://zlib.net/pigz/
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[cc-stretch-630]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Raspberry%20Pi%20GCC%20Cross-Compiler%20Toolchains/Stretch/GCC%206.3.0/
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[cc-buster-830]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Raspberry%20Pi%20GCC%20Cross-Compiler%20Toolchains/Buster/GCC%208.3.0/
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[nc-stretch-920]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Raspberry%20Pi%20GCC%20Native-Compiler%20Toolchains/Stretch/
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[nc-buster-920]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Raspberry%20Pi%20GCC%20Native-Compiler%20Toolchains/Buster/
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[cc-64-630]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Bonus%20Raspberry%20Pi%20GCC%2064-Bit%20Toolchains/Raspberry%20Pi%20GCC%2064-Bit%20Cross-Compiler%20Toolchains/GCC%206.3.0/
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[cc-64-830]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Bonus%20Raspberry%20Pi%20GCC%2064-Bit%20Toolchains/Raspberry%20Pi%20GCC%2064-Bit%20Cross-Compiler%20Toolchains/GCC%208.3.0/
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[cc-64-920]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Bonus%20Raspberry%20Pi%20GCC%2064-Bit%20Toolchains/Raspberry%20Pi%20GCC%2064-Bit%20Cross-Compiler%20Toolchains/GCC%209.2.0/
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[nc-64-830]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Bonus%20Raspberry%20Pi%20GCC%2064-Bit%20Toolchains/Raspberry%20Pi%20GCC%2064-Bit%20Native-Compiler%20Toolchains/GCC%208.3.0/
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[nc-64-920]:https://sourceforge.net/projects/raspberry-pi-cross-compilers/files/Bonus%20Raspberry%20Pi%20GCC%2064-Bit%20Toolchains/Raspberry%20Pi%20GCC%2064-Bit%20Native-Compiler%20Toolchains/GCC%209.2.0/

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