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I have tried to understand the naming conventions behind the gcc cross-compilers, but there seems to be conflicting answers. I have the following three cross-compilers in my system:
When reading through the GNU libtool manual, it specifies the cross-compiler naming convention as:
cpu-vendor-os (os = system / kernel-system)
This does not seem completely accurate with the compilers in my system. Is the information in the GNU manual old, or have the compiler distributors simply stopped following it?
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Generally speaking, a cross-compiler is a compiler that runs on platform A (the host), but generates executables for platform B (the target). These two platforms may (but do not need to) differ in CPU, operating system, and/or executable format.
A cross compiler is a compiler capable of creating executable code for a platform other than the one on which the compiler is running. For example, a compiler that runs on a PC but generates code that runs on an Android smartphone is a cross compiler.
For instance when installing GCC, the GNU Compiler Collection, we can use --target= target to specify that we want to build GCC as a cross-compiler for target . Mixing --build and --target , we can cross-compile a cross-compiler; such a three-way cross-compilation is known as a Canadian cross.
The naming comes down to this:
arch-vendor-(os-)abi
So for example:
x86_64-w64-mingw32 = x86_64 architecture (=AMD64), w64 (=mingw-w64 as "vendor"), mingw32 (=win32 API as seen by GCC)
i686-pc-msys = 32-bit (pc=generic name) msys binary
i686-unknown-linux-gnu = 32-bit GNU/linux
And your example specifically:
arm-none-linux-gnueabi = ARM architecture, no vendor, linux OS, and the gnueabi ABI.
The arm-eabi is alike you say, used for Android native apps.
One caveat: Debian uses a different naming, just to be difficult, so be careful if you're on a Debian-based system, as they have different names for eg. i686-pc-mingw32.
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