[kservice] Enhance support for backtrace service (#9037)

[feat] Enhance support for backtrace service

rt_backtrace_formatted_print() and rt_backtrace_to_buffer() to help
debug routines.

Also, following modification are included:
- make rt_backtrace_frame patchable with weak attr
- replace lwp backtrace with sync output

Signed-off-by: Shell <[email protected]>

2 files changed, 2 insertions, 2 deletions

diff --git a/libcpu/aarch64/common/trap.c b/libcpu/aarch64/common/trap.c
index 3be1578eb4..ca6ad1761f 100644
--- a/libcpu/aarch64/common/trap.c
+++ b/libcpu/aarch64/common/trap.c
@@ -370,7 +370,7 @@ void rt_hw_trap_exception(struct rt_hw_exp_stack *regs)
 #endif
 
     struct rt_hw_backtrace_frame frame = {.fp = regs->x29, .pc = regs->pc};
-    rt_backtrace_frame(&frame);
+    rt_backtrace_frame(rt_thread_self(), &frame);
     rt_hw_cpu_shutdown();
 }
 
diff --git a/libcpu/risc-v/virt64/trap.c b/libcpu/risc-v/virt64/trap.c
index f34f46c9e9..4366a5b2c0 100644
--- a/libcpu/risc-v/virt64/trap.c
+++ b/libcpu/risc-v/virt64/trap.c
@@ -366,7 +366,7 @@ void handle_trap(rt_size_t scause, rt_size_t stval, rt_size_t sepc, struct rt_hw
             .pc = sepc
         };
         rt_kprintf("fp = %p", frame.fp);
-        rt_backtrace_frame(&frame);
+        rt_backtrace_frame(rt_thread_self(), &frame);
 
         RT_ASSERT(0);
     }