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| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2023-10-30 12:34:16 +0100 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2023-11-01 15:24:56 +0100 |
| commit | 1bfaa37fd3486e66131de9cb87747c84b4c89a05 (patch) | |
| tree | 8400e8d7e5634d85bb6de2b9642181411b8008e7 | |
| parent | kbuild: Correct missing architecture-specific hyphens (diff) | |
| download | linux-1bfaa37fd3486e66131de9cb87747c84b4c89a05.tar.xz linux-1bfaa37fd3486e66131de9cb87747c84b4c89a05.zip | |
kbuild: dummy-tools: pretend we understand -fpatchable-function-entry
Commit 0f71dcfb4aef ("powerpc/ftrace: Add support for
-fpatchable-function-entry") added a script to check for
-fpatchable-function-entry compiler support. The script expects compiler
to emit the section __patchable_function_entries and few nops after a
function entry.
If the compiler understands and emits the above,
CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENTRY is set.
So teach dummy-tools' gcc about this.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
| -rwxr-xr-x | scripts/dummy-tools/gcc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc index 07f6dc4c5cf6..e6c41427c02f 100755 --- a/scripts/dummy-tools/gcc +++ b/scripts/dummy-tools/gcc @@ -91,6 +91,16 @@ if arg_contain -S "$@"; then fi exit 0 fi + + # For arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh + if arg_contain -m64 "$@" && arg_contain -fpatchable-function-entry=2 "$@"; then + echo "func:" + echo ".section __patchable_function_entries" + echo ".localentry" + echo " nop" + echo " nop" + exit 0 + fi fi # To set GCC_PLUGINS |