Do not save return registers before rt_sigreturn is called.
_user_exception(syscall handler) already setup return address
that's why it is removed from rt_sigreturn_wrapper.
Signed-off-by: Michal Simek <monstr@monstr.eu>
addik r8, r1, PTO; /* add user context as 4th arg */
C_ENTRY(sys_rt_sigreturn_wrapper):
addik r8, r1, PTO; /* add user context as 4th arg */
C_ENTRY(sys_rt_sigreturn_wrapper):
- swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
- swi r4, r1, PTO+PT_R4;
- brlid r15, sys_rt_sigreturn /* Do real work */
+ brid sys_rt_sigreturn /* Do real work */
addik r5, r1, PTO; /* add user context as 1st arg */
addik r5, r1, PTO; /* add user context as 1st arg */
- lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
- lwi r4, r1, PTO+PT_R4;
- bri ret_from_trap /* fall through will not work here due to align */
- nop;
/*
* HW EXCEPTION rutine start
/*
* HW EXCEPTION rutine start