Cc: Greentime Hu <greent...@andestech.com> Signed-off-by: Alan Kao <alan...@andestech.com> --- arch/riscv/include/asm/ftrace.h | 1 + arch/riscv/kernel/mcount-dyn.S | 3 +++ 2 files changed, 4 insertions(+)
diff --git a/arch/riscv/include/asm/ftrace.h b/arch/riscv/include/asm/ftrace.h index acf0c7d001f3..429a6a156645 100644 --- a/arch/riscv/include/asm/ftrace.h +++ b/arch/riscv/include/asm/ftrace.h @@ -9,6 +9,7 @@ #define HAVE_FUNCTION_GRAPH_FP_TEST #endif +#define ARCH_SUPPORTS_FTRACE_OPS 1 #ifndef __ASSEMBLY__ void _mcount(void); static inline unsigned long ftrace_call_adjust(unsigned long addr) diff --git a/arch/riscv/kernel/mcount-dyn.S b/arch/riscv/kernel/mcount-dyn.S index 64e715d4e180..627478571c7a 100644 --- a/arch/riscv/kernel/mcount-dyn.S +++ b/arch/riscv/kernel/mcount-dyn.S @@ -75,9 +75,12 @@ ENTRY(ftrace_caller) /* * a0: the address in the caller when calling ftrace_caller * a1: the caller's return address + * a2: the address of global variable function_trace_op */ ld a1, -8(s0) addi a0, ra, -MCOUNT_INSN_SIZE + la t5, function_trace_op + ld a2, 0(t5) #ifdef CONFIG_FUNCTION_GRAPH_TRACER /* -- 2.15.1