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| author | Chris Down <chris@chrisdown.name> | 2020-01-22 03:01:10 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-01-22 19:52:28 +0300 |
| commit | 2a67a6ccb01f21b854715d86ff6432a18b97adb3 (patch) | |
| tree | a973e74380a9631256c6cc0e6a15af350856f56e | |
| parent | 1222653cc0489fa9304a36f7d9593ecaeb51efe1 (diff) | |
| download | linux-2a67a6ccb01f21b854715d86ff6432a18b97adb3.tar.xz | |
bpf, btf: Always output invariant hit in pahole DWARF to BTF transform
When trying to compile with CONFIG_DEBUG_INFO_BTF enabled, I got this
error:
% make -s
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[3]: *** [vmlinux] Error 1
Compiling again without -s shows the true error (that pahole is
missing), but since this is fatal, we should show the error
unconditionally on stderr as well, not silence it using the `info`
function. With this patch:
% make -s
BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[3]: *** [vmlinux] Error 1
Signed-off-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200122000110.GA310073@chrisdown.name
| -rwxr-xr-x | scripts/link-vmlinux.sh | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 436379940356..408b5c0b99b1 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -108,13 +108,13 @@ gen_btf() local bin_arch if ! [ -x "$(command -v ${PAHOLE})" ]; then - info "BTF" "${1}: pahole (${PAHOLE}) is not available" + echo >&2 "BTF: ${1}: pahole (${PAHOLE}) is not available" return 1 fi pahole_ver=$(${PAHOLE} --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/') if [ "${pahole_ver}" -lt "113" ]; then - info "BTF" "${1}: pahole version $(${PAHOLE} --version) is too old, need at least v1.13" + echo >&2 "BTF: ${1}: pahole version $(${PAHOLE} --version) is too old, need at least v1.13" return 1 fi |