diff options
Diffstat (limited to 'arch/blackfin/kernel/entry.S')
| -rw-r--r-- | arch/blackfin/kernel/entry.S | 55 |
1 files changed, 8 insertions, 47 deletions
diff --git a/arch/blackfin/kernel/entry.S b/arch/blackfin/kernel/entry.S index f33792cc1a0..4071265fc4f 100644 --- a/arch/blackfin/kernel/entry.S +++ b/arch/blackfin/kernel/entry.S @@ -46,53 +46,14 @@ ENTRY(_ret_from_fork) SP += -12; pseudo_long_call _schedule_tail, p5; SP += 12; - r0 = [sp + PT_IPEND]; - cc = bittst(r0,1); - if cc jump .Lin_kernel; + p1 = [sp++]; + r0 = [sp++]; + cc = p1 == 0; + if cc jump .Lfork; + sp += -12; + call (p1); + sp += 12; +.Lfork: RESTORE_CONTEXT rti; -.Lin_kernel: - bitclr(r0,1); - [sp + PT_IPEND] = r0; - /* do a 'fake' RTI by jumping to [RETI] - * to avoid clearing supervisor mode in child - */ - r0 = [sp + PT_PC]; - [sp + PT_P0] = r0; - - RESTORE_ALL_SYS - jump (p0); ENDPROC(_ret_from_fork) - -ENTRY(_sys_vfork) - r0 = sp; - r0 += 24; - [--sp] = rets; - SP += -12; - pseudo_long_call _bfin_vfork, p2; - SP += 12; - rets = [sp++]; - rts; -ENDPROC(_sys_vfork) - -ENTRY(_sys_clone) - r0 = sp; - r0 += 24; - [--sp] = rets; - SP += -12; - pseudo_long_call _bfin_clone, p2; - SP += 12; - rets = [sp++]; - rts; -ENDPROC(_sys_clone) - -ENTRY(_sys_rt_sigreturn) - r0 = sp; - r0 += 24; - [--sp] = rets; - SP += -12; - pseudo_long_call _do_rt_sigreturn, p2; - SP += 12; - rets = [sp++]; - rts; -ENDPROC(_sys_rt_sigreturn) |