On Tue, Sep 28, 2021 at 6:47 AM Toke Høiland-Jørgensen <toke@xxxxxxxxxx> wrote: > > Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> writes: > > > Generate vmlinux.h only from the in-tree vmlinux, and remove enum > > declarations that would cause a build failure in case of version > > mismatches. > > > > There are now two options when building the samples: > > 1. Compile the kernel to use in-tree vmlinux for vmlinux.h > > 2. Override VMLINUX_BTF for samples using something like this: > > make VMLINUX_BTF=/sys/kernel/btf/vmlinux -C samples/bpf > > > > This change was tested with relative builds, e.g. cases like: > > * make O=build -C samples/bpf > > * make KBUILD_OUTPUT=build -C samples/bpf > > * make -C samples/bpf > > * cd samples/bpf && make > > > > When a suitable VMLINUX_BTF is not found, the following message is > > printed: > > /home/kkd/src/linux/samples/bpf/Makefile:333: *** Cannot find a vmlinux > > for VMLINUX_BTF at any of " ./vmlinux", build the kernel or set > > VMLINUX_BTF variable. Stop. > > > > Cc: Toke Høiland-Jørgensen <toke@xxxxxxxxxx> > > Fixes: 384b6b3bbf0d (samples: bpf: Add vmlinux.h generation support) > > Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> > > Acked-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx> > Applied to bpf, thanks.
