diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-10-19 11:56:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-28 13:55:17 +0300 |
| commit | bbaea0f1cd33d702d053d5bdaf6d6dec3932894c (patch) | |
| tree | 4791aa03e06d73d8b4b389ce76575aac412a363c /scripts/link-vmlinux.sh | |
| parent | a10a57a224f32035b58ef68b069f5b7491dd13e2 (diff) | |
| download | linux-bbaea0f1cd33d702d053d5bdaf6d6dec3932894c.tar.xz | |
bpf: Generate BTF_KIND_FLOAT when linking vmlinux
commit db16c1fe92d7ba7d39061faef897842baee2c887 upstream.
[backported for dependency only extra_paholeopt variable setup and
usage, we don't want floats generated in 5.10]
pahole v1.21 supports the --btf_gen_floats flag, which makes it
generate the information about the floating-point types [1].
Adjust link-vmlinux.sh to pass this flag to pahole in case it's
supported, which is determined using a simple version check.
[1] https://lore.kernel.org/dwarves/YHRiXNX1JUF2Az0A@kernel.org/
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210413190043.21918-1-iii@linux.ibm.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/link-vmlinux.sh')
| -rwxr-xr-x | scripts/link-vmlinux.sh | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index d0b44bee9286..cdfccbfed452 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -146,6 +146,7 @@ vmlinux_link() gen_btf() { local pahole_ver + local extra_paholeopt= if ! [ -x "$(command -v ${PAHOLE})" ]; then echo >&2 "BTF: ${1}: pahole (${PAHOLE}) is not available" @@ -161,7 +162,7 @@ gen_btf() vmlinux_link ${1} info "BTF" ${2} - LLVM_OBJCOPY=${OBJCOPY} ${PAHOLE} -J ${1} + LLVM_OBJCOPY=${OBJCOPY} ${PAHOLE} -J ${extra_paholeopt} ${1} # Create ${2} which contains just .BTF section but no symbols. Add # SHF_ALLOC because .BTF will be part of the vmlinux image. --strip-all |