diff mbox series

scripts/mksysmap: Ignore __pi_ local arm64 symbols

Message ID 20230606181936.bw62oyqswo7jomra@google.com (mailing list archive)
State New, archived
Headers show
Series scripts/mksysmap: Ignore __pi_ local arm64 symbols | expand

Commit Message

Pierre-Clément Tosi June 6, 2023, 6:19 p.m. UTC
Similarly to "__kvm_nvhe_", filter out any local symbol that was
prefixed with "__pi_" (generated when CONFIG_RANDOMIZE_BASE=y) when
compiling System.map and in kallsyms.

Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
---
 scripts/mksysmap | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Ard Biesheuvel June 7, 2023, 8:49 a.m. UTC | #1
On Tue, 6 Jun 2023 at 20:19, Pierre-Clément Tosi <ptosi@google.com> wrote:
>
> Similarly to "__kvm_nvhe_", filter out any local symbol that was
> prefixed with "__pi_" (generated when CONFIG_RANDOMIZE_BASE=y) when
> compiling System.map and in kallsyms.
>
> Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>

Acked-by: Ard Biesheuvel <ardb@kernel.org>

> ---
>  scripts/mksysmap | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/scripts/mksysmap b/scripts/mksysmap
> index cb3b1fff3eee..a7de0f637cc7 100755
> --- a/scripts/mksysmap
> +++ b/scripts/mksysmap
> @@ -40,6 +40,10 @@ ${NM} -n ${1} | sed >${2} -e "
>  # arm64 EFI stub namespace
>  / __efistub_/d
>
> +# arm64 local symbols in PIE namespace
> +/ __pi_\\$/d
> +/ __pi_\.L/d
> +
>  # arm64 local symbols in non-VHE KVM namespace
>  / __kvm_nvhe_\$/d
>  / __kvm_nvhe_\.L/d
> --
> 2.41.0.rc0.172.g3f132b7071-goog
>
>
> --
> Pierre
Masahiro Yamada June 7, 2023, 12:27 p.m. UTC | #2
On Wed, Jun 7, 2023 at 3:19 AM Pierre-Clément Tosi <ptosi@google.com> wrote:
>
> Similarly to "__kvm_nvhe_", filter out any local symbol that was
> prefixed with "__pi_" (generated when CONFIG_RANDOMIZE_BASE=y) when
> compiling System.map and in kallsyms.
>
> Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
> ---


Applied to linux-kbuild. Thanks.



>  scripts/mksysmap | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/scripts/mksysmap b/scripts/mksysmap
> index cb3b1fff3eee..a7de0f637cc7 100755
> --- a/scripts/mksysmap
> +++ b/scripts/mksysmap
> @@ -40,6 +40,10 @@ ${NM} -n ${1} | sed >${2} -e "
>  # arm64 EFI stub namespace
>  / __efistub_/d
>
> +# arm64 local symbols in PIE namespace
> +/ __pi_\\$/d
> +/ __pi_\.L/d
> +
>  # arm64 local symbols in non-VHE KVM namespace
>  / __kvm_nvhe_\$/d
>  / __kvm_nvhe_\.L/d
> --
> 2.41.0.rc0.172.g3f132b7071-goog
>
>
> --
> Pierre
diff mbox series

Patch

diff --git a/scripts/mksysmap b/scripts/mksysmap
index cb3b1fff3eee..a7de0f637cc7 100755
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -40,6 +40,10 @@  ${NM} -n ${1} | sed >${2} -e "
 # arm64 EFI stub namespace
 / __efistub_/d
 
+# arm64 local symbols in PIE namespace
+/ __pi_\\$/d
+/ __pi_\.L/d
+
 # arm64 local symbols in non-VHE KVM namespace
 / __kvm_nvhe_\$/d
 / __kvm_nvhe_\.L/d