src/third_party/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/postmortem/elf-core/main.c

static void bar(char *boom)
{
    char F = 'b';
    *boom = 47; // Frame bar
}

static void foo(char *boom, void (*boomer)(char *))
{
    char F = 'f';
    boomer(boom); // Frame foo
}

void _start(void)
{
    char F = '_';
    foo(0, bar); // Frame _start
}