diff options
Diffstat (limited to 'arch/alpha/kernel/entry.S')
| -rw-r--r-- | arch/alpha/kernel/entry.S | 51 |
1 files changed, 12 insertions, 39 deletions
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index a7607832dd4..f62a994ef12 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -612,47 +612,24 @@ ret_from_kernel_thread: * Special system calls. Most of these are special in that they either * have to play switch_stack games or in some way use the pt_regs struct. */ - .align 4 - .globl sys_fork - .ent sys_fork -sys_fork: - .prologue 0 - mov $sp, $21 - bsr $1, do_switch_stack - bis $31, SIGCHLD, $16 - mov $31, $17 - mov $31, $18 - mov $31, $19 - mov $31, $20 - jsr $26, alpha_clone - bsr $1, undo_switch_stack - ret -.end sys_fork +.macro fork_like name .align 4 - .globl sys_clone - .ent sys_clone -sys_clone: + .globl alpha_\name + .ent alpha_\name +alpha_\name: .prologue 0 - mov $sp, $21 bsr $1, do_switch_stack - /* $16, $17, $18, $19, $20 come from the user. */ - jsr $26, alpha_clone - bsr $1, undo_switch_stack + jsr $26, sys_\name + ldq $26, 56($sp) + lda $sp, SWITCH_STACK_SIZE($sp) ret -.end sys_clone +.end alpha_\name +.endm - .align 4 - .globl sys_vfork - .ent sys_vfork -sys_vfork: - .prologue 0 - mov $sp, $16 - bsr $1, do_switch_stack - jsr $26, alpha_vfork - bsr $1, undo_switch_stack - ret -.end sys_vfork +fork_like fork +fork_like vfork +fork_like clone .align 4 .globl sys_sigreturn @@ -661,8 +638,6 @@ sys_sigreturn: .prologue 0 lda $9, ret_from_straced cmpult $26, $9, $9 - mov $sp, $17 - lda $18, -SWITCH_STACK_SIZE($sp) lda $sp, -SWITCH_STACK_SIZE($sp) jsr $26, do_sigreturn bne $9, 1f @@ -678,8 +653,6 @@ sys_rt_sigreturn: .prologue 0 lda $9, ret_from_straced cmpult $26, $9, $9 - mov $sp, $17 - lda $18, -SWITCH_STACK_SIZE($sp) lda $sp, -SWITCH_STACK_SIZE($sp) jsr $26, do_rt_sigreturn bne $9, 1f |