diff options
Diffstat (limited to 'src/lib/thread.c')
| -rw-r--r-- | src/lib/thread.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/lib/thread.c b/src/lib/thread.c index 262cfa53bd..413e5b4bec 100644 --- a/src/lib/thread.c +++ b/src/lib/thread.c @@ -15,6 +15,12 @@ _Static_assert((CONFIG_STACK_SIZE & (CONFIG_STACK_SIZE - 1)) == 0, "`cpu_info()` requires the stack size to be a power of 2"); +/* + * struct cpu_info lives at the top of each thread's stack. `cpu_info()` locates this struct by + * taking the current stack pointer and masking off CONFIG_STACK_SIZE. This requires the stack + * to be STACK_SIZE aligned. + */ +static u8 thread_stacks[CONFIG_STACK_SIZE * CONFIG_NUM_THREADS] __aligned(CONFIG_STACK_SIZE); static bool initialized; static void idle_thread_init(void); @@ -257,9 +263,6 @@ void threads_initialize(void) struct thread *t; u8 *stack_top; struct cpu_info *ci; - u8 *thread_stacks; - - thread_stacks = arch_get_thread_stackbase(); /* `cpu_info()` requires the stacks to be STACK_SIZE aligned */ assert(IS_ALIGNED((uintptr_t)thread_stacks, CONFIG_STACK_SIZE)); |