build failure with VDSO on non-glibc based systems

Szabolcs Nagy szabolcs.nagy at
Tue Jun 23 03:35:05 PDT 2015

if the host toolchain is not glibc based then the arm kernel build fails with

 arch/arm/vdso/vdsomunge.c:53:19: fatal error: error.h: No such file or directory

error.h is a glibc only header (ie not available in musl, newlib and bsd libcs).

i attached a patch that fixes the build failure for me.
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