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| H A D | thread_arch.c | cd7384a0a94b2eba741a797f27974338b063f391 Wed Aug 14 16:05:12 UTC 2024 Alvin Chang <alvinga@andestech.com> core: riscv: Simplify SP setup in setup_unwind_user_mode()
The parameter "regs" is the stack pointer which is allocated to store
system call registers when calling thread_scall_handler(). Thus, we can
simply get the original stack pointer by "regs + 1" equation, and use it
to exit user mode.
The code is referenced from ARM's setup_unwind_user_mode().
Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com>
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