Why do I need a Cross Compiler?: Difference between revisions
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Later still, when you're confident that you can both develop and use your kernel, from within your kernel, you'll want to stop building all your programs on a separate "development" machine. More specifically, at this point, you want to have your "build" machine be the same as your test machine such that you build programs that run on your OS, from within your OS. At this point, it's time to take the final step, and, from your separate "development" machine, build a compiler that will run on your OS (host = yourOsTargetArch-yourChosenFormat-yourOs), and target your OS (target = yourOsTargetArch-yourChosenFormat-yourOs). This cross compiler, the canadian cross, will allow you to natively compile other programs while running on your own OS's userspace. It is essentially a "distribution native compiler", like the one that comes with your distro. From that point on, having a compiler that runs on and targets your OS, you can essentially more freely port programs, and allow people to do the same while running your OS, assuming you package that native compiler with your OS. |
Later still, when you're confident that you can both develop and use your kernel, from within your kernel, you'll want to stop building all your programs on a separate "development" machine. More specifically, at this point, you want to have your "build" machine be the same as your test machine such that you build programs that run on your OS, from within your OS. At this point, it's time to take the final step, and, from your separate "development" machine, build a compiler that will run on your OS (host = yourOsTargetArch-yourChosenFormat-yourOs), and target your OS (target = yourOsTargetArch-yourChosenFormat-yourOs). This cross compiler, the canadian cross, will allow you to natively compile other programs while running on your own OS's userspace. It is essentially a "distribution native compiler", like the one that comes with your distro. From that point on, having a compiler that runs on and targets your OS, you can essentially more freely port programs, and allow people to do the same while running your OS, assuming you package that native compiler with your OS. |
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So yes, it is advised, for sanity's sake, to use a cross compiler even when your distro's native compiler targets almost the same machine as your standalone environment. |
<b>So yes, it is advised, for sanity's sake, to use a cross compiler even when your distro's native compiler targets almost the same machine as your standalone environment.</b> |
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=== A further concretion example === |
=== A further concretion example === |
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