diff options
| author | Slava Bacherikov <[email protected]> | 2020-04-02 23:41:39 +0300 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2020-04-03 00:27:36 +0200 |
| commit | 7d32e69310d67e6b04af04f26193f79dfc2f05c7 (patch) | |
| tree | 0373a81cc322aed49517e4a2873f80c06711c9db | |
| parent | 21f64e72e7073199a6f8d7d8efe52cd814d7d665 (diff) | |
kbuild, btf: Fix dependencies for DEBUG_INFO_BTF
Currently turning on DEBUG_INFO_SPLIT when DEBUG_INFO_BTF is also
enabled will produce invalid btf file, since gen_btf function in
link-vmlinux.sh script doesn't handle *.dwo files.
Enabling DEBUG_INFO_REDUCED will also produce invalid btf file,
and using GCC_PLUGIN_RANDSTRUCT with BTF makes no sense.
Fixes: e83b9f55448a ("kbuild: add ability to generate BTF type info for vmlinux")
Reported-by: Jann Horn <[email protected]>
Reported-by: Liu Yiding <[email protected]>
Signed-off-by: Slava Bacherikov <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Acked-by: KP Singh <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
| -rw-r--r-- | lib/Kconfig.debug | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index a85a6a423bf4..4cb4671b1d9e 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -241,6 +241,8 @@ config DEBUG_INFO_DWARF4 config DEBUG_INFO_BTF bool "Generate BTF typeinfo" depends on DEBUG_INFO + depends on !DEBUG_INFO_SPLIT && !DEBUG_INFO_REDUCED + depends on !GCC_PLUGIN_RANDSTRUCT || COMPILE_TEST help Generate deduplicated BTF type information from DWARF debug info. Turning this on expects presence of pahole tool, which will convert |