In the origin call case, if BPF_TRAMP_F_SKIP_FRAME is not set, it means
that the trampoline is not called, but "jmp".

Introduce the function bpf_trampoline_need_jmp() to check if the
trampoline is in "jmp" mode.

Do some adjustment on the "jmp" mode for the x86_64. The main adjustment
that we make is for the stack parameter passing case, as the stack
alignment logic changes in the "jmp" mode without the "rip". What's more,
the location of the parameters on the stack also changes.

Signed-off-by: Menglong Dong <redacted>
---
 arch/x86/net/bpf_jit_comp.c | 15 ++++++++++-----
 include/linux/bpf.h         | 12 ++++++++++++
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 2d300ab37cdd..21ce2b8457ec 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c

@@ -2830,7 +2830,7 @@ static int get_nr_used_regs(const struct btf_func_model *m)
 }

 static void save_args(const struct btf_func_model *m, u8 **prog,
-                     int stack_size, bool for_call_origin)
+                     int stack_size, bool for_call_origin, bool jmp)