On Fri, Jul 25, 2025 at 05:43:13PM -0700, Nathan Chancellor wrote: > ld.lld: error: undefined symbol: __sanitizer_cov_stack_depth > >>> referenced by atags_to_fdt.c Proposed fix: https://lore.kernel.org/lkml/20250726212945.work.975-kees@xxxxxxxxxx/ > kernel/kstack_erase.c:168:2: warning: function with attribute 'no_caller_saved_registers' should only call a function with attribute 'no_caller_saved_registers' or be compiled with '-mgeneral-regs-only' [-Wexcessive-regsave] Proposed fix: https://lore.kernel.org/lkml/20250726212615.work.800-kees@xxxxxxxxxx/ > In file included from kernel/fork.c:96: > include/linux/kstack_erase.h:29:37: error: passing 'const struct task_struct *' to parameter of type 'struct task_struct *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] > 29 | return (unsigned long)end_of_stack(tsk) + sizeof(unsigned long); > | ^~~ > include/linux/sched/task_stack.h:56:63: note: passing argument to parameter 'p' here > 56 | static inline unsigned long *end_of_stack(struct task_struct *p) > | ^ Proposed fix: https://lore.kernel.org/lkml/20250726210641.work.114-kees@xxxxxxxxxx/ Thanks for the reports! :) -Kees -- Kees Cook
