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Date: Mon, 2 Nov 2020 15:44:38 +0800
From: "Chen Wang" <>
To: musl <>
Cc: unicorn_wang <>
Subject: [Question] some questions about kernel header files for musl?

hi, I'm a newbie learning msul, I have some questions about kernel header files for musl. Appreciated if anybody can answer my quesitons, thanks in adv.

Q1) What's the rule to pick up kernel header files for musl? Do we need to catch up the latest kernel when the kernel is upgraded? What version of kernel is musl currently in usage?
Q2) I see duplicated headers files in different folders, for example: unistd.h, I see it under both "include/unistd.h" and "src/include/unistd.h". Why we need multiple copies? Are they used for different purpose?
Q3) For different arch, such as arm/x86/riscv, do they share the same kernel header files? I double checked android bionic and found it has different kernel header files for differnet arch.

Best Regards

Wang Chen

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