tests/stack_unwind: Avoid inlining and tail-calls (df1cd1b0) · Commits · Wenxi XU / zephyr

We want the stack trace to show the correct nesting of functions, so we need to prevent the compiler from in-lining functions or performing tail-call optimizations. Add __noinline to prevent inlining. Add another printf in each function to avoid tail calls. Signed-off-by:

Keith Packard <keithp@keithp.com>

tests/arch/common/stack_unwind/src/main.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -12,7 +12,7 @@
		static void func1(int a);
		static void func2(int a);

		static void func2(int a)
		static void __noinline func2(int a)
		{
		printf("%d: %s\n", a, __func__);

		@@ -21,12 +21,14 @@ static void func2(int a)
		}

		func1(a + 1);
		printf("bottom %d: %s\n", a, __func__);
		}

		static void func1(int a)
		static void __noinline func1(int a)
		{
		printf("%d: %s\n", a, __func__);
		func2(a + 1);
		printf("bottom %d: %s\n", a, __func__);
		}

		int main(void)

Admin message