diff options
Diffstat (limited to 'arch/m68k/kernel/entry.S')
| -rw-r--r-- | arch/m68k/kernel/entry.S | 70 |
1 files changed, 13 insertions, 57 deletions
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 946cb018775..b54ac7aba85 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -44,34 +44,29 @@ .globl system_call, buserr, trap, resume .globl sys_call_table -.globl sys_fork, sys_clone, sys_vfork -.globl ret_from_interrupt, bad_interrupt +.globl __sys_fork, __sys_clone, __sys_vfork +.globl bad_interrupt .globl auto_irqhandler_fixup .globl user_irqvec_fixup .text -ENTRY(sys_fork) +ENTRY(__sys_fork) SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_fork - addql #4,%sp - RESTORE_SWITCH_STACK + jbsr sys_fork + lea %sp@(24),%sp rts -ENTRY(sys_clone) +ENTRY(__sys_clone) SAVE_SWITCH_STACK pea %sp@(SWITCH_STACK_SIZE) jbsr m68k_clone - addql #4,%sp - RESTORE_SWITCH_STACK + lea %sp@(28),%sp rts -ENTRY(sys_vfork) +ENTRY(__sys_vfork) SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr m68k_vfork - addql #4,%sp - RESTORE_SWITCH_STACK + jbsr sys_vfork + lea %sp@(24),%sp rts ENTRY(sys_sigreturn) @@ -115,16 +110,9 @@ ENTRY(ret_from_kernel_thread) | a3 contains the kernel thread payload, d7 - its argument movel %d1,%sp@- jsr schedule_tail - GET_CURRENT(%d0) movel %d7,(%sp) jsr %a3@ addql #4,%sp - movel %d0,(%sp) - jra sys_exit - -ENTRY(ret_from_kernel_execve) - movel 4(%sp), %sp - GET_CURRENT(%d0) jra ret_from_exception #if defined(CONFIG_COLDFIRE) || !defined(CONFIG_MMU) @@ -287,8 +275,6 @@ do_delayed_trace: ENTRY(auto_inthandler) SAVE_ALL_INT GET_CURRENT(%d0) - movel %d0,%a1 - addqb #1,%a1@(TINFO_PREEMPT+1) | put exception # in d0 bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 subw #VEC_SPUR,%d0 @@ -298,32 +284,13 @@ ENTRY(auto_inthandler) auto_irqhandler_fixup = . + 2 jsr do_IRQ | process the IRQ addql #8,%sp | pop parameters off stack - -ret_from_interrupt: - movel %curptr@(TASK_STACK),%a1 - subqb #1,%a1@(TINFO_PREEMPT+1) - jeq ret_from_last_interrupt -2: RESTORE_ALL - - ALIGN -ret_from_last_interrupt: - moveq #(~ALLOWINT>>8)&0xff,%d0 - andb %sp@(PT_OFF_SR),%d0 - jne 2b - - /* check if we need to do software interrupts */ - tstl irq_stat+CPUSTAT_SOFTIRQ_PENDING - jeq .Lret_from_exception - pea ret_from_exception - jra do_softirq + jra ret_from_exception /* Handler for user defined interrupt vectors */ ENTRY(user_inthandler) SAVE_ALL_INT GET_CURRENT(%d0) - movel %d0,%a1 - addqb #1,%a1@(TINFO_PREEMPT+1) | put exception # in d0 bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0 user_irqvec_fixup = . + 2 @@ -333,29 +300,18 @@ user_irqvec_fixup = . + 2 movel %d0,%sp@- | put vector # on stack jsr do_IRQ | process the IRQ addql #8,%sp | pop parameters off stack - - movel %curptr@(TASK_STACK),%a1 - subqb #1,%a1@(TINFO_PREEMPT+1) - jeq ret_from_last_interrupt - RESTORE_ALL + jra ret_from_exception /* Handler for uninitialized and spurious interrupts */ ENTRY(bad_inthandler) SAVE_ALL_INT GET_CURRENT(%d0) - movel %d0,%a1 - addqb #1,%a1@(TINFO_PREEMPT+1) movel %sp,%sp@- jsr handle_badint addql #4,%sp - - movel %curptr@(TASK_STACK),%a1 - subqb #1,%a1@(TINFO_PREEMPT+1) - jeq ret_from_last_interrupt - RESTORE_ALL - + jra ret_from_exception resume: /* |