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https://github.com/torvalds/linux
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ae460c0224
The following error was shown when a bpf program was compiled without vmlinux.h auto-generated from BTF: # clang -I./linux/tools/lib/ -I/lib/modules/$(uname -r)/build/include/ \ -O2 -Wall -target bpf -emit-llvm -c bpf_prog.c -o bpf_prog.bc ... In file included from linux/tools/lib/bpf/bpf_helpers.h:5: linux/tools/lib/bpf/bpf_helper_defs.h:56:82: error: unknown type name '__u64' ... It seems that bpf programs are intended for being built together with the vmlinux.h (which will have all the __u64 and other typedefs). But users may mistakenly think "include <linux/types.h>" is missing because the vmlinux.h is not common for non-bpf developers. IMO, an explicit comment therefore should be added to bpf_helpers.h as this patch shows. Signed-off-by: Yoshiki Komachi <komachi.yoshiki@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/1587427527-29399-1-git-send-email-komachi.yoshiki@gmail.com |
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| .. | ||
| api | ||
| bpf | ||
| lockdep | ||
| perf | ||
| subcmd | ||
| symbol | ||
| traceevent | ||
| argv_split.c | ||
| bitmap.c | ||
| ctype.c | ||
| find_bit.c | ||
| hweight.c | ||
| rbtree.c | ||
| str_error_r.c | ||
| string.c | ||
| vsprintf.c | ||
| zalloc.c | ||