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arch: fix alignment bug for archs that need stack alignment

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These archs only align the size of the stack, forgeting to do the
 stack start addr alignment, this patch fixes it.

Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
This commit is contained in:
wangchengdong
2025-09-18 17:31:43 +08:00
committed by Alan C. Assis
parent bd28635b68
commit b92e0b6730
17 changed files with 81 additions and 318 deletions
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arch/sparc/src/common/sparc_usestack.c
+4 -20
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@@ -85,27 +85,11 @@ int up_use_stack(struct tcb_s *tcb, void *stack, size_t stack_size)
/* Save the new stack allocation */
tcb->stack_alloc_ptr = stack;
tcb->stack_base_ptr = (void *)STACK_ALIGN_UP((uintptr_t)stack);
/* sparc uses a push-down stack: the stack grows toward loweraddresses in
* memory. The stack pointer register, points to the lowest, valid work
* address (the "top" of the stack). Items on the stack are referenced
* as positive word offsets from sp.
*/
top_of_stack = (uint32_t)tcb->stack_alloc_ptr + stack_size;
/* The sparc stack must be aligned at word (4 byte) or double word (8 byte)
* boundaries. If necessary top_of_stack must be rounded down to the
* next boundary
*/
top_of_stack = STACK_ALIGN_DOWN(top_of_stack);
size_of_stack = top_of_stack - (uint32_t)tcb->stack_alloc_ptr;
/* Save the adjusted stack values in the struct tcb_s */
tcb->stack_base_ptr = tcb->stack_alloc_ptr;
tcb->adj_stack_size = size_of_stack;
top_of_stack = STACK_ALIGN_DOWN((uintptr_t)stack + stack_size);
size_of_stack = top_of_stack - (uintptr_t)tcb->stack_base_ptr;
tcb->adj_stack_size = size_of_stack;
#ifdef CONFIG_STACK_COLORATION
/* If stack debug is enabled, then fill the stack with a