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doc: update minimum glibc requirements for Linux #42659

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doc: update minimum glibc requirements for Linux #42659

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59 changes: 24 additions & 35 deletions BUILDING.md
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Expand Up @@ -100,57 +100,48 @@ for it. In other words, Node.js does not support running on End-of-Life (EoL)
platforms. This is true regardless of entries in the table below. platforms. This is true regardless of entries in the table below.


| Operating System | Architectures | Versions | Support Type | Notes | | Operating System | Architectures | Versions | Support Type | Notes |
| ---------------- | ---------------- | ------------------------------- | ------------------------------------------- | ----------------------------------------- | | ---------------- | ---------------- | --------------------------------- | ------------------------------------------- | ------------------------------------ |
| GNU/Linux | x64 | kernel >= 3.10, glibc >= 2.17 | Tier 1 | e.g. Ubuntu 16.04[^1], Debian 9, EL 7[^2] | | GNU/Linux | x64 | kernel >= 4.18[^1], glibc >= 2.28 | Tier 1 | e.g. Ubuntu 20.04, Debian 10, RHEL 8 |
| GNU/Linux | x64 | kernel >= 3.10, musl >= 1.1.19 | Experimental | e.g. Alpine 3.8 | | GNU/Linux | x64 | kernel >= 3.10, musl >= 1.1.19 | Experimental | e.g. Alpine 3.8 |
| GNU/Linux | x86 | kernel >= 3.10, glibc >= 2.17 | Experimental | Downgraded as of Node.js 10 | | GNU/Linux | x86 | kernel >= 3.10, glibc >= 2.17 | Experimental | Downgraded as of Node.js 10 |
| GNU/Linux | arm64 | kernel >= 4.5, glibc >= 2.17 | Tier 1 | e.g. Ubuntu 16.04, Debian 9, EL 7[^3] | | GNU/Linux | arm64 | kernel >= 4.18[^1], glibc >= 2.28 | Tier 1 | e.g. Ubuntu 20.04, Debian 10, RHEL 8 |
| GNU/Linux | armv7 | kernel >= 4.14, glibc >= 2.24 | Tier 1 | e.g. Ubuntu 18.04, Debian 9 | | GNU/Linux | armv7 | kernel >= 4.18[^1], glibc >= 2.28 | Tier 1 | e.g. Ubuntu 20.04, Debian 10 |
| GNU/Linux | armv6 | kernel >= 4.14, glibc >= 2.24 | Experimental | Downgraded as of Node.js 12 | | GNU/Linux | armv6 | kernel >= 4.14, glibc >= 2.24 | Experimental | Downgraded as of Node.js 12 |
| GNU/Linux | ppc64le >=power8 | kernel >= 3.10.0, glibc >= 2.17 | Tier 2 | e.g. Ubuntu 16.04[^1], EL 7[^2] | | GNU/Linux | ppc64le >=power8 | kernel >= 4.18[^1], glibc >= 2.28 | Tier 2 | e.g. Ubuntu 20.04, RHEL 8 |
| GNU/Linux | s390x | kernel >= 3.10.0, glibc >= 2.17 | Tier 2 | e.g. EL 7[^2] | | GNU/Linux | s390x | kernel >= 4.18[^1], glibc >= 2.28 | Tier 2 | e.g. RHEL 8 |
| Windows | x64 | >= Windows 10/Server 2016 | Tier 1 | [^4],[^5] | | Windows | x64 | >= Windows 10/Server 2016 | Tier 1 | [^2],[^3] |
| Windows | x86 | >= Windows 10/Server 2016 | Experimental | [^6] | | Windows | x86 | >= Windows 10/Server 2016 | Experimental | [^4] |
| Windows | x64, x86 | Windows 8.1/Server 2012 | Experimental | | | Windows | x64, x86 | Windows 8.1/Server 2012 | Experimental | |
| Windows | arm64 | >= Windows 10 | Tier 2 (compiling) / Experimental (running) | | | Windows | arm64 | >= Windows 10 | Tier 2 (compiling) / Experimental (running) | |
| macOS | x64 | >= 10.15 | Tier 1 | For notes about compilation see [^7] | | macOS | x64 | >= 10.15 | Tier 1 | For notes about compilation see [^5] |
| macOS | arm64 | >= 11 | Tier 1 | | | macOS | arm64 | >= 11 | Tier 1 | |
| SmartOS | x64 | >= 18 | Tier 2 | | | SmartOS | x64 | >= 18 | Tier 2 | |
| AIX | ppc64be >=power8 | >= 7.2 TL04 | Tier 2 | | | AIX | ppc64be >=power8 | >= 7.2 TL04 | Tier 2 | |
| FreeBSD | x64 | >= 12.2 | Experimental | | | FreeBSD | x64 | >= 12.2 | Experimental | |


[^1]: GCC 8 is not provided on the base platform. Users will [^1]: Older kernel versions may work. However official Node.js release
need the binaries are [built on RHEL 8 systems](#official-binary-platforms-and-toolchains)
[Toolchain test builds PPA](https://launchpad.net/\~ubuntu-toolchain-r/+archive/ubuntu/test?field.series_filter=xenial) with kernel 4.18.
or similar to source a newer compiler.


[^2]: GCC 8 is not provided on the base platform. Users will [^2]: On Windows, running Node.js in Windows terminal emulators
need the
[devtoolset-8](https://www.softwarecollections.org/en/scls/rhscl/devtoolset-8/)
or later to source a newer compiler.

[^3]: Older kernel versions may work for ARM64. However the
Node.js test infrastructure only tests >= 4.5.

[^4]: On Windows, running Node.js in Windows terminal emulators
like `mintty` requires the usage of [winpty](https://github.com/rprichard/winpty) like `mintty` requires the usage of [winpty](https://github.com/rprichard/winpty)
for the tty channels to work (e.g. `winpty node.exe script.js`). for the tty channels to work (e.g. `winpty node.exe script.js`).
In "Git bash" if you call the node shell alias (`node` without the `.exe` In "Git bash" if you call the node shell alias (`node` without the `.exe`
extension), `winpty` is used automatically. extension), `winpty` is used automatically.


[^5]: The Windows Subsystem for Linux (WSL) is not [^3]: The Windows Subsystem for Linux (WSL) is not
supported, but the GNU/Linux build process and binaries should work. The supported, but the GNU/Linux build process and binaries should work. The
community will only address issues that reproduce on native GNU/Linux community will only address issues that reproduce on native GNU/Linux
systems. Issues that only reproduce on WSL should be reported in the systems. Issues that only reproduce on WSL should be reported in the
[WSL issue tracker](https://github.com/Microsoft/WSL/issues). Running the [WSL issue tracker](https://github.com/Microsoft/WSL/issues). Running the
Windows binary (`node.exe`) in WSL will not work without workarounds such as Windows binary (`node.exe`) in WSL will not work without workarounds such as
stdio redirection. stdio redirection.


[^6]: Compiling Node.js for x86 Windows is currently impossible due to [^4]: Compiling Node.js for x86 Windows is currently impossible due to
issues with version 10.1 of the V8 engine. Support will come back to its issues with version 10.1 of the V8 engine. Support will come back to its
previous status as soon as possible. previous status as soon as possible.


[^7]: Our macOS x64 Binaries are compiled with 10.15 as a target. Xcode11 is [^5]: Our macOS x64 Binaries are compiled with 10.15 as a target. Xcode11 is
required to compile. required to compile.


### Supported toolchains ### Supported toolchains
Expand All @@ -172,19 +163,17 @@ Binaries at <https://nodejs.org/download/release/> are produced on:
| aix-ppc64 | AIX 7.2 TL04 on PPC64BE with GCC 8 | | aix-ppc64 | AIX 7.2 TL04 on PPC64BE with GCC 8 |
| darwin-x64 | macOS 10.15, Xcode Command Line Tools 11 with -mmacosx-version-min=10.15 | | darwin-x64 | macOS 10.15, Xcode Command Line Tools 11 with -mmacosx-version-min=10.15 |
| darwin-arm64 (and .pkg) | macOS 11 (arm64), Xcode Command Line Tools 12 with -mmacosx-version-min=10.15 | | darwin-arm64 (and .pkg) | macOS 11 (arm64), Xcode Command Line Tools 12 with -mmacosx-version-min=10.15 |
| linux-arm64 | CentOS 7 with devtoolset-8 / GCC 8[^8] | | linux-arm64 | RHEL 8 with GCC 8[^6] |
| linux-armv7l | Cross-compiled on Ubuntu 18.04 x64 with [custom GCC toolchain](https://github.com/rvagg/rpi-newer-crosstools) | | linux-armv7l | Cross-compiled on Ubuntu 18.04 x64 with [custom GCC toolchain](https://github.com/rvagg/rpi-newer-crosstools) |
| linux-ppc64le | CentOS 7 with devtoolset-8 / GCC 8[^8] | | linux-ppc64le | RHEL 8 with GCC 8[^6] |
| linux-s390x | RHEL 7 with devtoolset-8 / GCC 8[^8] | | linux-s390x | RHEL 8 with GCC 8[^6] |
| linux-x64 | CentOS 7 with devtoolset-8 / GCC 8[^8] | | linux-x64 | RHEL 8 with GCC 8[^6] |
| win-x64 and win-x86 | Windows 2012 R2 (x64) with Visual Studio 2019 | | win-x64 and win-x86 | Windows 2012 R2 (x64) with Visual Studio 2019 |


[^8]: The Enterprise Linux devtoolset-8 allows us to compile binaries with GCC 8 [^6]: Binaries produced on these systems are compatible with glibc >= 2.28
but linked to the glibc and libstdc++ versions of the host platforms and libstdc++ >= 6.0.25 (`GLIBCXX_3.4.25`). These are available on
(CentOS 7 / RHEL 7). Therefore, binaries produced on these systems are distributions natively supporting GCC 8.1 or higher, such as Debian 10,
compatible with glibc >= 2.17 and libstdc++ >= 6.0.20 (`GLIBCXX_3.4.20`). RHEL 8 and Ubuntu 20.04.
These are available on distributions natively supporting GCC 4.9, such as
Ubuntu 14.04 and Debian 8.


#### OpenSSL asm support #### OpenSSL asm support


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