diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2024-04-15 09:42:42 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-04-18 12:12:18 +0100 |
| commit | a9a058031cfb7e1fcd7a03a4f7228179a0426cb4 (patch) | |
| tree | f83fa1c598ee029c402ca1bf0b63c5309db52a09 | |
| parent | 7af5b901e84743c608aae90cb0e429702812c324 (diff) | |
ARM: 9382/1: ftrace: Define ftrace_stub_graph
Several architectures defines this stub for the graph tracer,
and it is needed for CFI, as it needs a separate symbol for it.
The trick from include/asm-generic/vmlinux.lds.h to define
ftrace_stub_graph to ftrace_stub isn't working when using CFI.
Commit 883bbbffa5a4 contains the details.
Tested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm/kernel/entry-ftrace.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-ftrace.S b/arch/arm/kernel/entry-ftrace.S index 3e7bcaca5e07..bc598e3d8dd2 100644 --- a/arch/arm/kernel/entry-ftrace.S +++ b/arch/arm/kernel/entry-ftrace.S @@ -271,6 +271,10 @@ ENTRY(ftrace_stub) ret lr ENDPROC(ftrace_stub) +ENTRY(ftrace_stub_graph) + ret lr +ENDPROC(ftrace_stub_graph) + #ifdef CONFIG_DYNAMIC_FTRACE __INIT |