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1275 |
phoenix |
/*
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* ia64/kernel/entry.S
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*
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* Kernel entry points.
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*
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* Copyright (C) 2002-2003
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* Suresh Siddha
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* Fenghua Yu
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* Copyright (C) 1998-2002 Hewlett-Packard Co
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* David Mosberger-Tang
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* Copyright (C) 1999 VA Linux Systems
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* Copyright (C) 1999 Walt Drummond
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* Copyright (C) 1999 Asit Mallick
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* Copyright (C) 1999 Don Dugger
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*/
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/*
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* ia64_switch_to now places correct virtual mapping in in TR2 for
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* kernel stack. This allows us to handle interrupts without changing
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* to physical mode.
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*
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* Jonathan Nicklin
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* Patrick O'Rourke
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* 11/07/2000
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/
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/*
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* Global (preserved) predicate usage on syscall entry/exit path:
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*
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* pKern: See entry.h.
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* pUser: See entry.h.
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* pSys: See entry.h.
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* pNonSys: !pSys
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*/
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include "minstate.h"
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/*
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* execve() is special because in case of success, we need to
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* setup a null register window frame.
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*/
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ENTRY(ia64_execve)
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.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(3)
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alloc loc1=ar.pfs,3,2,4,0
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/* Leave from kernel and restore all pt_regs to correspending registers. This is special
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* because ia32 application needs scratch registers after return from execve.
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*/
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movl loc0=ia64_ret_from_execve_syscall
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.body
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mov out0=in0 // filename
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;; // stop bit between alloc and call
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mov out1=in1 // argv
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mov out2=in2 // envp
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add out3=16,sp // regs
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br.call.sptk.many rp=sys_execve
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.ret0: cmp4.ge p6,p7=r8,r0
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mov ar.pfs=loc1 // restore ar.pfs
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sxt4 r8=r8 // return 64-bit result
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;;
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stf.spill [sp]=f0
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(p6) cmp.ne pKern,pUser=r0,r0 // a successful execve() lands us in user-mode...
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mov rp=loc0
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(p6) mov ar.pfs=r0 // clear ar.pfs on success
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(p7) br.ret.sptk.many rp
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/*
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* In theory, we'd have to zap this state only to prevent leaking of
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* security sensitive state (e.g., if current->mm->dumpable is zero). However,
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* this executes in less than 20 cycles even on Itanium, so it's not worth
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* optimizing for...).
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*/
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mov ar.unat=0; mov ar.lc=0;
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mov r4=0; mov f2=f0; mov b1=r0
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mov r5=0; mov f3=f0; mov b2=r0
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mov r6=0; mov f4=f0; mov b3=r0
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mov r7=0; mov f5=f0; mov b4=r0
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ldf.fill f12=[sp]; mov f13=f0; mov b5=r0
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ldf.fill f14=[sp]; ldf.fill f15=[sp]; mov f16=f0
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ldf.fill f17=[sp]; ldf.fill f18=[sp]; mov f19=f0
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ldf.fill f20=[sp]; ldf.fill f21=[sp]; mov f22=f0
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ldf.fill f23=[sp]; ldf.fill f24=[sp]; mov f25=f0
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ldf.fill f26=[sp]; ldf.fill f27=[sp]; mov f28=f0
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ldf.fill f29=[sp]; ldf.fill f30=[sp]; mov f31=f0
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br.ret.sptk.many rp
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END(ia64_execve)
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GLOBAL_ENTRY(sys_clone2)
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.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
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alloc r16=ar.pfs,3,2,4,0
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DO_SAVE_SWITCH_STACK
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mov loc0=rp
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mov loc1=r16 // save ar.pfs across do_fork
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.body
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mov out1=in1
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mov out3=in2
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adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s
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mov out0=in0 // out0 = clone_flags
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br.call.sptk.many rp=do_fork
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.ret1: .restore sp
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adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack
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mov ar.pfs=loc1
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mov rp=loc0
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br.ret.sptk.many rp
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END(sys_clone2)
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GLOBAL_ENTRY(sys_clone)
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.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
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alloc r16=ar.pfs,2,2,4,0
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DO_SAVE_SWITCH_STACK
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mov loc0=rp
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mov loc1=r16 // save ar.pfs across do_fork
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.body
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mov out1=in1
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mov out3=16 // stacksize (compensates for 16-byte scratch area)
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adds out2=IA64_SWITCH_STACK_SIZE+16,sp // out2 = ®s
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mov out0=in0 // out0 = clone_flags
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br.call.sptk.many rp=do_fork
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.ret2: .restore sp
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adds sp=IA64_SWITCH_STACK_SIZE,sp // pop the switch stack
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mov ar.pfs=loc1
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mov rp=loc0
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br.ret.sptk.many rp
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END(sys_clone)
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/*
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* prev_task <- ia64_switch_to(struct task_struct *next)
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*/
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GLOBAL_ENTRY(ia64_switch_to)
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.prologue
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alloc r16=ar.pfs,1,0,0,0
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DO_SAVE_SWITCH_STACK
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.body
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adds r22=IA64_TASK_THREAD_KSP_OFFSET,r13
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mov r27=IA64_KR(CURRENT_STACK)
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dep r20=0,in0,61,3 // physical address of "current"
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;;
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st8 [r22]=sp // save kernel stack pointer of old task
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shr.u r26=r20,IA64_GRANULE_SHIFT
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shr.u r17=r20,KERNEL_TR_PAGE_SHIFT
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;;
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cmp.ne p6,p7=KERNEL_TR_PAGE_NUM,r17
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adds r21=IA64_TASK_THREAD_KSP_OFFSET,in0
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;;
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/*
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* If we've already mapped this task's page, we can skip doing it again.
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*/
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(p6) cmp.eq p7,p6=r26,r27
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(p6) br.cond.dpnt .map
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;;
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.done:
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(p6) ssm psr.ic // if we we had to map, renable the psr.ic bit FIRST!!!
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;;
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(p6) srlz.d
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ld8 sp=[r21] // load kernel stack pointer of new task
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mov IA64_KR(CURRENT)=r20 // update "current" application register
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mov r8=r13 // return pointer to previously running task
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mov r13=in0 // set "current" pointer
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;;
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ssm psr.i // renable psr.i AFTER the ic bit is serialized
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DO_LOAD_SWITCH_STACK
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#ifdef CONFIG_SMP
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sync.i // ensure "fc"s done by this CPU are visible on other CPUs
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#endif
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br.ret.sptk.many rp // boogie on out in new context
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.map:
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rsm psr.i | psr.ic
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movl r25=PAGE_KERNEL
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;;
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srlz.d
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or r23=r25,r20 // construct PA | page properties
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mov r25=IA64_GRANULE_SHIFT<<2
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;;
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mov cr.itir=r25
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mov cr.ifa=in0 // VA of next task...
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;;
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mov r25=IA64_TR_CURRENT_STACK
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mov IA64_KR(CURRENT_STACK)=r26 // remember last page we mapped...
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;;
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itr.d dtr[r25]=r23 // wire in new mapping...
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br.cond.sptk .done
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END(ia64_switch_to)
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/*
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* Note that interrupts are enabled during save_switch_stack and
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* load_switch_stack. This means that we may get an interrupt with
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* "sp" pointing to the new kernel stack while ar.bspstore is still
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* pointing to the old kernel backing store area. Since ar.rsc,
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* ar.rnat, ar.bsp, and ar.bspstore are all preserved by interrupts,
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* this is not a problem. Also, we don't need to specify unwind
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* information for preserved registers that are not modified in
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* save_switch_stack as the right unwind information is already
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* specified at the call-site of save_switch_stack.
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*/
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/*
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* save_switch_stack:
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* - r16 holds ar.pfs
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* - b7 holds address to return to
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* - rp (b0) holds return address to save
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*/
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GLOBAL_ENTRY(save_switch_stack)
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.prologue
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.altrp b7
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flushrs // flush dirty regs to backing store (must be first in insn group)
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.save @priunat,r17
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mov r17=ar.unat // preserve caller's
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.body
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adds r3=80,sp
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;;
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lfetch.fault.excl.nt1 [r3],128
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mov ar.rsc=0 // put RSE in mode: enforced lazy, little endian, pl 0
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adds r2=16+128,sp
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;;
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lfetch.fault.excl.nt1 [r2],128
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lfetch.fault.excl.nt1 [r3],128
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adds r14=SW(R4)+16,sp
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;;
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lfetch.fault.excl [r2]
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lfetch.fault.excl [r3]
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adds r15=SW(R5)+16,sp
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;;
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mov r18=ar.fpsr // preserve fpsr
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mov r19=ar.rnat
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add r2=SW(F2)+16,sp // r2 = &sw->f2
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.mem.offset 0,0; st8.spill [r14]=r4,16 // spill r4
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.mem.offset 8,0; st8.spill [r15]=r5,16 // spill r5
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add r3=SW(F3)+16,sp // r3 = &sw->f3
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;;
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stf.spill [r2]=f2,32
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stf.spill [r3]=f3,32
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mov r21=b0
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.mem.offset 0,0; st8.spill [r14]=r6,16 // spill r6
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.mem.offset 8,0; st8.spill [r15]=r7,16 // spill r7
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mov r22=b1
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;;
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// since we're done with the spills, read and save ar.unat:
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mov r29=ar.unat // M-unit
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| 250 |
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mov r20=ar.bspstore // M-unit
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mov r23=b2
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stf.spill [r2]=f4,32
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stf.spill [r3]=f5,32
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| 254 |
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mov r24=b3
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;;
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st8 [r14]=r21,16 // save b0
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st8 [r15]=r22,16 // save b1
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mov r25=b4
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mov r26=b5
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;;
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st8 [r14]=r23,16 // save b2
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st8 [r15]=r24,16 // save b3
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mov r21=ar.lc // I-unit
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stf.spill [r2]=f12,32
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stf.spill [r3]=f13,32
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;;
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| 267 |
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st8 [r14]=r25,16 // save b4
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| 268 |
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st8 [r15]=r26,16 // save b5
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stf.spill [r2]=f14,32
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stf.spill [r3]=f15,32
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;;
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| 272 |
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st8 [r14]=r16 // save ar.pfs
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| 273 |
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st8 [r15]=r21 // save ar.lc
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| 274 |
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stf.spill [r2]=f16,32
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| 275 |
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stf.spill [r3]=f17,32
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| 276 |
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;;
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| 277 |
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stf.spill [r2]=f18,32
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| 278 |
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stf.spill [r3]=f19,32
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| 279 |
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;;
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| 280 |
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stf.spill [r2]=f20,32
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| 281 |
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stf.spill [r3]=f21,32
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| 282 |
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;;
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| 283 |
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stf.spill [r2]=f22,32
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| 284 |
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stf.spill [r3]=f23,32
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| 285 |
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;;
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| 286 |
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stf.spill [r2]=f24,32
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| 287 |
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stf.spill [r3]=f25,32
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| 288 |
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add r14=SW(CALLER_UNAT)+16,sp
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| 289 |
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;;
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| 290 |
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stf.spill [r2]=f26,32
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| 291 |
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stf.spill [r3]=f27,32
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| 292 |
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add r15=SW(AR_FPSR)+16,sp
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| 293 |
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;;
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| 294 |
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stf.spill [r2]=f28,32
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| 295 |
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stf.spill [r3]=f29,32
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| 296 |
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st8 [r14]=r17 // save caller_unat
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| 297 |
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st8 [r15]=r18 // save fpsr
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| 298 |
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mov r21=pr
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| 299 |
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;;
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| 300 |
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stf.spill [r2]=f30,(SW(AR_UNAT)-SW(F30))
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| 301 |
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stf.spill [r3]=f31,(SW(AR_RNAT)-SW(F31))
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| 302 |
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;;
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| 303 |
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st8 [r2]=r29,16 // save ar.unat
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| 304 |
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st8 [r3]=r19,16 // save ar.rnat
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| 305 |
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;;
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| 306 |
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st8 [r2]=r20 // save ar.bspstore
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| 307 |
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st8 [r3]=r21 // save predicate registers
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| 308 |
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mov ar.rsc=3 // put RSE back into eager mode, pl 0
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| 309 |
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br.cond.sptk.many b7
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| 310 |
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END(save_switch_stack)
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| 311 |
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| 312 |
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/*
|
| 313 |
|
|
* load_switch_stack:
|
| 314 |
|
|
* - "invala" MUST be done at call site (normally in DO_LOAD_SWITCH_STACK)
|
| 315 |
|
|
* - b7 holds address to return to
|
| 316 |
|
|
* - must not touch r8-r11
|
| 317 |
|
|
*/
|
| 318 |
|
|
ENTRY(load_switch_stack)
|
| 319 |
|
|
.prologue
|
| 320 |
|
|
.altrp b7
|
| 321 |
|
|
|
| 322 |
|
|
.body
|
| 323 |
|
|
lfetch.fault.nt1 [sp]
|
| 324 |
|
|
adds r2=SW(AR_BSPSTORE)+16,sp
|
| 325 |
|
|
adds r3=SW(AR_UNAT)+16,sp
|
| 326 |
|
|
mov ar.rsc=0 // put RSE into enforced lazy mode
|
| 327 |
|
|
adds r14=SW(CALLER_UNAT)+16,sp
|
| 328 |
|
|
adds r15=SW(AR_FPSR)+16,sp
|
| 329 |
|
|
;;
|
| 330 |
|
|
ld8 r27=[r2],(SW(B0)-SW(AR_BSPSTORE)) // bspstore
|
| 331 |
|
|
ld8 r29=[r3],(SW(B1)-SW(AR_UNAT)) // unat
|
| 332 |
|
|
;;
|
| 333 |
|
|
ld8 r21=[r2],16 // restore b0
|
| 334 |
|
|
ld8 r22=[r3],16 // restore b1
|
| 335 |
|
|
;;
|
| 336 |
|
|
ld8 r23=[r2],16 // restore b2
|
| 337 |
|
|
ld8 r24=[r3],16 // restore b3
|
| 338 |
|
|
;;
|
| 339 |
|
|
ld8 r25=[r2],16 // restore b4
|
| 340 |
|
|
ld8 r26=[r3],16 // restore b5
|
| 341 |
|
|
;;
|
| 342 |
|
|
ld8 r16=[r2],(SW(PR)-SW(AR_PFS)) // ar.pfs
|
| 343 |
|
|
ld8 r17=[r3],(SW(AR_RNAT)-SW(AR_LC)) // ar.lc
|
| 344 |
|
|
;;
|
| 345 |
|
|
ld8 r28=[r2] // restore pr
|
| 346 |
|
|
ld8 r30=[r3] // restore rnat
|
| 347 |
|
|
;;
|
| 348 |
|
|
ld8 r18=[r14],16 // restore caller's unat
|
| 349 |
|
|
ld8 r19=[r15],24 // restore fpsr
|
| 350 |
|
|
;;
|
| 351 |
|
|
ldf.fill f2=[r14],32
|
| 352 |
|
|
ldf.fill f3=[r15],32
|
| 353 |
|
|
;;
|
| 354 |
|
|
ldf.fill f4=[r14],32
|
| 355 |
|
|
ldf.fill f5=[r15],32
|
| 356 |
|
|
;;
|
| 357 |
|
|
ldf.fill f12=[r14],32
|
| 358 |
|
|
ldf.fill f13=[r15],32
|
| 359 |
|
|
;;
|
| 360 |
|
|
ldf.fill f14=[r14],32
|
| 361 |
|
|
ldf.fill f15=[r15],32
|
| 362 |
|
|
;;
|
| 363 |
|
|
ldf.fill f16=[r14],32
|
| 364 |
|
|
ldf.fill f17=[r15],32
|
| 365 |
|
|
;;
|
| 366 |
|
|
ldf.fill f18=[r14],32
|
| 367 |
|
|
ldf.fill f19=[r15],32
|
| 368 |
|
|
mov b0=r21
|
| 369 |
|
|
;;
|
| 370 |
|
|
ldf.fill f20=[r14],32
|
| 371 |
|
|
ldf.fill f21=[r15],32
|
| 372 |
|
|
mov b1=r22
|
| 373 |
|
|
;;
|
| 374 |
|
|
ldf.fill f22=[r14],32
|
| 375 |
|
|
ldf.fill f23=[r15],32
|
| 376 |
|
|
mov b2=r23
|
| 377 |
|
|
;;
|
| 378 |
|
|
mov ar.bspstore=r27
|
| 379 |
|
|
mov ar.unat=r29 // establish unat holding the NaT bits for r4-r7
|
| 380 |
|
|
mov b3=r24
|
| 381 |
|
|
;;
|
| 382 |
|
|
ldf.fill f24=[r14],32
|
| 383 |
|
|
ldf.fill f25=[r15],32
|
| 384 |
|
|
mov b4=r25
|
| 385 |
|
|
;;
|
| 386 |
|
|
ldf.fill f26=[r14],32
|
| 387 |
|
|
ldf.fill f27=[r15],32
|
| 388 |
|
|
mov b5=r26
|
| 389 |
|
|
;;
|
| 390 |
|
|
ldf.fill f28=[r14],32
|
| 391 |
|
|
ldf.fill f29=[r15],32
|
| 392 |
|
|
mov ar.pfs=r16
|
| 393 |
|
|
;;
|
| 394 |
|
|
ldf.fill f30=[r14],32
|
| 395 |
|
|
ldf.fill f31=[r15],24
|
| 396 |
|
|
mov ar.lc=r17
|
| 397 |
|
|
;;
|
| 398 |
|
|
ld8.fill r4=[r14],16
|
| 399 |
|
|
ld8.fill r5=[r15],16
|
| 400 |
|
|
mov pr=r28,-1
|
| 401 |
|
|
;;
|
| 402 |
|
|
ld8.fill r6=[r14],16
|
| 403 |
|
|
ld8.fill r7=[r15],16
|
| 404 |
|
|
|
| 405 |
|
|
mov ar.unat=r18 // restore caller's unat
|
| 406 |
|
|
mov ar.rnat=r30 // must restore after bspstore but before rsc!
|
| 407 |
|
|
mov ar.fpsr=r19 // restore fpsr
|
| 408 |
|
|
mov ar.rsc=3 // put RSE back into eager mode, pl 0
|
| 409 |
|
|
br.cond.sptk.many b7
|
| 410 |
|
|
END(load_switch_stack)
|
| 411 |
|
|
|
| 412 |
|
|
GLOBAL_ENTRY(__ia64_syscall)
|
| 413 |
|
|
.regstk 6,0,0,0
|
| 414 |
|
|
mov r15=in5 // put syscall number in place
|
| 415 |
|
|
break __BREAK_SYSCALL
|
| 416 |
|
|
movl r2=errno
|
| 417 |
|
|
cmp.eq p6,p7=-1,r10
|
| 418 |
|
|
;;
|
| 419 |
|
|
(p6) st4 [r2]=r8
|
| 420 |
|
|
(p6) mov r8=-1
|
| 421 |
|
|
br.ret.sptk.many rp
|
| 422 |
|
|
END(__ia64_syscall)
|
| 423 |
|
|
|
| 424 |
|
|
/*
|
| 425 |
|
|
* We invoke syscall_trace through this intermediate function to
|
| 426 |
|
|
* ensure that the syscall input arguments are not clobbered. We
|
| 427 |
|
|
* also use it to preserve b6, which contains the syscall entry point.
|
| 428 |
|
|
*/
|
| 429 |
|
|
GLOBAL_ENTRY(invoke_syscall_trace)
|
| 430 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
|
| 431 |
|
|
alloc loc1=ar.pfs,8,3,0,0
|
| 432 |
|
|
mov loc0=rp
|
| 433 |
|
|
.body
|
| 434 |
|
|
mov loc2=b6
|
| 435 |
|
|
;;
|
| 436 |
|
|
br.call.sptk.many rp=syscall_trace
|
| 437 |
|
|
.ret3: mov rp=loc0
|
| 438 |
|
|
mov ar.pfs=loc1
|
| 439 |
|
|
mov b6=loc2
|
| 440 |
|
|
br.ret.sptk.many rp
|
| 441 |
|
|
END(invoke_syscall_trace)
|
| 442 |
|
|
|
| 443 |
|
|
/*
|
| 444 |
|
|
* Invoke a system call, but do some tracing before and after the call.
|
| 445 |
|
|
* We MUST preserve the current register frame throughout this routine
|
| 446 |
|
|
* because some system calls (such as ia64_execve) directly
|
| 447 |
|
|
* manipulate ar.pfs.
|
| 448 |
|
|
*
|
| 449 |
|
|
* Input:
|
| 450 |
|
|
* r15 = syscall number
|
| 451 |
|
|
* b6 = syscall entry point
|
| 452 |
|
|
*/
|
| 453 |
|
|
.global ia64_strace_leave_kernel
|
| 454 |
|
|
|
| 455 |
|
|
GLOBAL_ENTRY(ia64_trace_syscall)
|
| 456 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 457 |
|
|
{ /*
|
| 458 |
|
|
* Some versions of gas generate bad unwind info if the first instruction of a
|
| 459 |
|
|
* procedure doesn't go into the first slot of a bundle. This is a workaround.
|
| 460 |
|
|
*/
|
| 461 |
|
|
nop.m 0
|
| 462 |
|
|
nop.i 0
|
| 463 |
|
|
br.call.sptk.many rp=invoke_syscall_trace // give parent a chance to catch syscall args
|
| 464 |
|
|
}
|
| 465 |
|
|
.ret6: br.call.sptk.many rp=b6 // do the syscall
|
| 466 |
|
|
strace_check_retval:
|
| 467 |
|
|
cmp.lt p6,p0=r8,r0 // syscall failed?
|
| 468 |
|
|
adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8
|
| 469 |
|
|
adds r3=PT(R10)+16,sp // r3 = &pt_regs.r10
|
| 470 |
|
|
mov r10=0
|
| 471 |
|
|
(p6) br.cond.sptk strace_error // syscall failed ->
|
| 472 |
|
|
;; // avoid RAW on r10
|
| 473 |
|
|
strace_save_retval:
|
| 474 |
|
|
.mem.offset 0,0; st8.spill [r2]=r8 // store return value in slot for r8
|
| 475 |
|
|
.mem.offset 8,0; st8.spill [r3]=r10 // clear error indication in slot for r10
|
| 476 |
|
|
ia64_strace_leave_kernel:
|
| 477 |
|
|
br.call.sptk.many rp=invoke_syscall_trace // give parent a chance to catch return value
|
| 478 |
|
|
.rety: br.cond.sptk ia64_leave_syscall
|
| 479 |
|
|
|
| 480 |
|
|
strace_error:
|
| 481 |
|
|
ld8 r3=[r2] // load pt_regs.r8
|
| 482 |
|
|
sub r9=0,r8 // negate return value to get errno value
|
| 483 |
|
|
;;
|
| 484 |
|
|
cmp.ne p6,p0=r3,r0 // is pt_regs.r8!=0?
|
| 485 |
|
|
adds r3=16,r2 // r3=&pt_regs.r10
|
| 486 |
|
|
;;
|
| 487 |
|
|
(p6) mov r10=-1
|
| 488 |
|
|
(p6) mov r8=r9
|
| 489 |
|
|
br.cond.sptk strace_save_retval
|
| 490 |
|
|
END(ia64_trace_syscall)
|
| 491 |
|
|
|
| 492 |
|
|
GLOBAL_ENTRY(ia64_ret_from_clone)
|
| 493 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 494 |
|
|
{ /*
|
| 495 |
|
|
* Some versions of gas generate bad unwind info if the first instruction of a
|
| 496 |
|
|
* procedure doesn't go into the first slot of a bundle. This is a workaround.
|
| 497 |
|
|
*/
|
| 498 |
|
|
nop.m 0
|
| 499 |
|
|
nop.i 0
|
| 500 |
|
|
/*
|
| 501 |
|
|
* We need to call schedule_tail() to complete the scheduling process.
|
| 502 |
|
|
* Called by ia64_switch_to after do_fork()->copy_thread(). r8 contains the
|
| 503 |
|
|
* address of the previously executing task.
|
| 504 |
|
|
*/
|
| 505 |
|
|
br.call.sptk.many rp=ia64_invoke_schedule_tail
|
| 506 |
|
|
}
|
| 507 |
|
|
.ret8:
|
| 508 |
|
|
adds r2=IA64_TASK_PTRACE_OFFSET,r13
|
| 509 |
|
|
;;
|
| 510 |
|
|
ld8 r2=[r2]
|
| 511 |
|
|
;;
|
| 512 |
|
|
mov r8=0
|
| 513 |
|
|
tbit.nz p6,p0=r2,PT_TRACESYS_BIT
|
| 514 |
|
|
(p6) br.cond.spnt strace_check_retval
|
| 515 |
|
|
;; // added stop bits to prevent r8 dependency
|
| 516 |
|
|
END(ia64_ret_from_clone)
|
| 517 |
|
|
// fall through
|
| 518 |
|
|
GLOBAL_ENTRY(ia64_ret_from_syscall)
|
| 519 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 520 |
|
|
cmp.ge p6,p7=r8,r0 // syscall executed successfully?
|
| 521 |
|
|
adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8
|
| 522 |
|
|
adds r3=PT(R10)+16,sp // r3 = &pt_regs.r10
|
| 523 |
|
|
;;
|
| 524 |
|
|
.mem.offset 0,0
|
| 525 |
|
|
(p6) st8.spill [r2]=r8 // store return value in slot for r8 and set unat bit
|
| 526 |
|
|
.mem.offset 8,0
|
| 527 |
|
|
(p6) st8.spill [r3]=r0 // clear error indication in slot for r10 and set unat bit
|
| 528 |
|
|
(p7) br.cond.spnt handle_syscall_error // handle potential syscall failure
|
| 529 |
|
|
END(ia64_ret_from_syscall)
|
| 530 |
|
|
// fall through
|
| 531 |
|
|
/*
|
| 532 |
|
|
* ia64_leave_syscall(): Same as ia64_leave_kernel, except that it doesn't
|
| 533 |
|
|
* need to switch to bank 0 and doesn't restore the scratch registers.
|
| 534 |
|
|
* To avoid leaking kernel bits, the scratch registers are set to
|
| 535 |
|
|
* the following known-to-be-safe values:
|
| 536 |
|
|
*
|
| 537 |
|
|
* r1: restored (global pointer)
|
| 538 |
|
|
* r2: cleared
|
| 539 |
|
|
* r3: cleared
|
| 540 |
|
|
* r8-r11: restored (syscall return value(s))
|
| 541 |
|
|
* r12: restored (user-level stack pointer)
|
| 542 |
|
|
* r13: restored (user-level thread pointer)
|
| 543 |
|
|
* r14: cleared
|
| 544 |
|
|
* r15: restored (syscall #)
|
| 545 |
|
|
* r16-r19: cleared
|
| 546 |
|
|
* r20: user-level ar.fpsr
|
| 547 |
|
|
* r21: user-level b0
|
| 548 |
|
|
* r22: cleared
|
| 549 |
|
|
* r23: user-level ar.bspstore
|
| 550 |
|
|
* r24: user-level ar.rnat
|
| 551 |
|
|
* r25: user-level ar.unat
|
| 552 |
|
|
* r26: user-level ar.pfs
|
| 553 |
|
|
* r27: user-level ar.rsc
|
| 554 |
|
|
* r28: user-level ip
|
| 555 |
|
|
* r29: user-level psr
|
| 556 |
|
|
* r30: user-level cfm
|
| 557 |
|
|
* r31: user-level pr
|
| 558 |
|
|
* f6-f11: cleared
|
| 559 |
|
|
* pr: restored (user-level pr)
|
| 560 |
|
|
* b0: restored (user-level rp)
|
| 561 |
|
|
* b6: cleared
|
| 562 |
|
|
* b7: cleared
|
| 563 |
|
|
* ar.unat: restored (user-level ar.unat)
|
| 564 |
|
|
* ar.pfs: restored (user-level ar.pfs)
|
| 565 |
|
|
* ar.rsc: restored (user-level ar.rsc)
|
| 566 |
|
|
* ar.rnat: restored (user-level ar.rnat)
|
| 567 |
|
|
* ar.bspstore: restored (user-level ar.bspstore)
|
| 568 |
|
|
* ar.fpsr: restored (user-level ar.fpsr)
|
| 569 |
|
|
* ar.ccv: cleared
|
| 570 |
|
|
* ar.csd: cleared
|
| 571 |
|
|
* ar.ssd: cleared
|
| 572 |
|
|
*/
|
| 573 |
|
|
GLOBAL_ENTRY(ia64_leave_syscall)
|
| 574 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 575 |
|
|
lfetch.fault [sp]
|
| 576 |
|
|
movl r14=.restart1
|
| 577 |
|
|
;;
|
| 578 |
|
|
mov.ret.sptk rp=r14,.restart1
|
| 579 |
|
|
cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall
|
| 580 |
|
|
.restart1:
|
| 581 |
|
|
// need_resched and signals atomic test
|
| 582 |
|
|
(pUser) rsm psr.i
|
| 583 |
|
|
adds r17=IA64_TASK_NEED_RESCHED_OFFSET,r13
|
| 584 |
|
|
adds r18=IA64_TASK_SIGPENDING_OFFSET,r13
|
| 585 |
|
|
#ifdef CONFIG_PERFMON
|
| 586 |
|
|
adds r19=IA64_TASK_PFM_OVFL_BLOCK_RESET_OFFSET,r13
|
| 587 |
|
|
#endif
|
| 588 |
|
|
;;
|
| 589 |
|
|
#ifdef CONFIG_PERFMON
|
| 590 |
|
|
(pUser) ld8 r19=[r19] // load current->thread.pfm_ovfl_block_reset
|
| 591 |
|
|
#endif
|
| 592 |
|
|
(pUser) ld8 r17=[r17] // load current->need_resched
|
| 593 |
|
|
(pUser) ld4 r18=[r18] // load current->sigpending
|
| 594 |
|
|
;;
|
| 595 |
|
|
#ifdef CONFIG_PERFMON
|
| 596 |
|
|
(pUser) cmp.ne.unc p9,p0=r19,r0 // current->thread.pfm_ovfl_block_reset != 0?
|
| 597 |
|
|
#endif
|
| 598 |
|
|
(pUser) cmp.ne.unc p7,p0=r17,r0 // current->need_resched != 0?
|
| 599 |
|
|
(pUser) cmp.ne.unc p8,p0=r18,r0 // current->sigpending != 0?
|
| 600 |
|
|
;;
|
| 601 |
|
|
#ifdef CONFIG_PERFMON
|
| 602 |
|
|
(p9) br.call.spnt.many b7=pfm_ovfl_block_reset
|
| 603 |
|
|
#endif
|
| 604 |
|
|
#if __GNUC__ < 3
|
| 605 |
|
|
(p7) br.call.spnt.many b7=invoke_schedule
|
| 606 |
|
|
#else
|
| 607 |
|
|
(p7) br.call.spnt.many b7=schedule
|
| 608 |
|
|
#endif
|
| 609 |
|
|
(p8) br.call.spnt.many rp=handle_signal_delivery // check & deliver pending signals (once)
|
| 610 |
|
|
|
| 611 |
|
|
mov ar.csd=r0
|
| 612 |
|
|
mov ar.ssd=r0
|
| 613 |
|
|
adds r16=PT(LOADRS)+16,r12
|
| 614 |
|
|
adds r17=PT(AR_BSPSTORE)+16, r12
|
| 615 |
|
|
mov f6=f0 // clear f6
|
| 616 |
|
|
;;
|
| 617 |
|
|
ld8 r19=[r16],PT(R8)-PT(LOADRS) // load ar.rsc value for "loadrs"
|
| 618 |
|
|
ld8 r23=[r17],PT(R9)-PT(AR_BSPSTORE) // load ar.bspstore (may be garbage)
|
| 619 |
|
|
mov r22=r0 // clear r22
|
| 620 |
|
|
;;
|
| 621 |
|
|
// start restoring the state saved on the kernel stack (struct pt_regs):
|
| 622 |
|
|
ld8.fill r8=[r16],16
|
| 623 |
|
|
ld8.fill r9=[r17],16
|
| 624 |
|
|
mov f7=f0 // clear f7
|
| 625 |
|
|
;;
|
| 626 |
|
|
ld8.fill r10=[r16],16
|
| 627 |
|
|
ld8.fill r11=[r17],16
|
| 628 |
|
|
mov f8=f0 // clear f8
|
| 629 |
|
|
;;
|
| 630 |
|
|
ld8 r29=[r16],16 // load cr.ipsr
|
| 631 |
|
|
ld8 r28=[r17],16 // load cr.iip
|
| 632 |
|
|
mov b7=r0 // clear b7
|
| 633 |
|
|
;;
|
| 634 |
|
|
ld8 r30=[r16],16 // load cr.ifs
|
| 635 |
|
|
ld8 r25=[r17],16 // load ar.unat
|
| 636 |
|
|
cmp.eq p9,p0=r0,r0 // set p9 to indicate that we should restore cr.ifs
|
| 637 |
|
|
;;
|
| 638 |
|
|
rsm psr.i | psr.ic // initiate turning off of interrupt and interruption collection
|
| 639 |
|
|
invala // invalidate ALAT
|
| 640 |
|
|
mov f9=f0 // clear f9
|
| 641 |
|
|
;;
|
| 642 |
|
|
ld8 r26=[r16],16 // load ar.pfs
|
| 643 |
|
|
ld8 r27=[r17],PT(PR)-PT(AR_RSC)// load ar.rsc
|
| 644 |
|
|
mov f10=f0 // clear f10
|
| 645 |
|
|
;;
|
| 646 |
|
|
ld8 r24=[r16],PT(B0)-PT(AR_RNAT)// load ar.rnat (may be garbage)
|
| 647 |
|
|
ld8 r31=[r17],PT(R1)-PT(PR) // load predicates
|
| 648 |
|
|
mov f11=f0 // clear f11
|
| 649 |
|
|
;;
|
| 650 |
|
|
ld8 r21=[r16],PT(R12)-PT(B0)// load b0
|
| 651 |
|
|
ld8.fill r1=[r17],16 // load r1
|
| 652 |
|
|
mov r3=r0 // clear r3
|
| 653 |
|
|
;;
|
| 654 |
|
|
ld8.fill r12=[r16],16
|
| 655 |
|
|
ld8.fill r13=[r17],16
|
| 656 |
|
|
mov r2=r0 // clear r2
|
| 657 |
|
|
;;
|
| 658 |
|
|
ld8 r20=[r16] // ar.fpsr
|
| 659 |
|
|
ld8.fill r15=[r17] // load r15
|
| 660 |
|
|
adds r18=16,r16
|
| 661 |
|
|
;;
|
| 662 |
|
|
mov r16=ar.bsp // get existing backing store pointer
|
| 663 |
|
|
movl r17=PERCPU_ADDR+IA64_CPU_PHYS_STACKED_SIZE_P8_OFFSET
|
| 664 |
|
|
srlz.i // ensure interruption collection is off
|
| 665 |
|
|
mov ar.ccv=r0 // clear ar.ccv
|
| 666 |
|
|
mov b6=r0 // clear b6
|
| 667 |
|
|
;;
|
| 668 |
|
|
ld4 r17=[r17] // r17 = cpu_data->phys_stacked_size_p8
|
| 669 |
|
|
mov r14=r0 // clear r14
|
| 670 |
|
|
(pKern) br.cond.dpnt skip_rbs_switch
|
| 671 |
|
|
/*
|
| 672 |
|
|
* Restore user backing store.
|
| 673 |
|
|
*
|
| 674 |
|
|
* NOTE: alloc, loadrs, and cover can't be predicated.
|
| 675 |
|
|
*/
|
| 676 |
|
|
cover // add current frame into dirty partition
|
| 677 |
|
|
shr.u r18=r19,16 // get byte size of existing "dirty" partition
|
| 678 |
|
|
;;
|
| 679 |
|
|
mov r19=ar.bsp // get new backing store pointer
|
| 680 |
|
|
sub r16=r16,r18 // krbs = old bsp - size of dirty partition
|
| 681 |
|
|
cmp.ne p9,p0=r0,r0 // clear p9 to skip restore of cr.ifs
|
| 682 |
|
|
;;
|
| 683 |
|
|
sub r19=r19,r16 // calculate total byte size of dirty partition
|
| 684 |
|
|
add r18=64,r18 // don't force in0-in7 into memory...
|
| 685 |
|
|
;;
|
| 686 |
|
|
shl r19=r19,16 // shift size of dirty partition into loadrs position
|
| 687 |
|
|
br.few dont_preserve_current_frame
|
| 688 |
|
|
;;
|
| 689 |
|
|
END(ia64_leave_syscall)
|
| 690 |
|
|
|
| 691 |
|
|
GLOBAL_ENTRY(ia64_ret_from_execve_syscall)
|
| 692 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 693 |
|
|
cmp.ge p6,p7=r8,r0 // syscall executed successfully?
|
| 694 |
|
|
adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8
|
| 695 |
|
|
adds r3=PT(R10)+16,sp // r3 = &pt_regs.r10
|
| 696 |
|
|
;;
|
| 697 |
|
|
.mem.offset 0,0
|
| 698 |
|
|
(p6) st8.spill [r2]=r8 // store return value in slot for r8 and set unat bit
|
| 699 |
|
|
.mem.offset 8,0
|
| 700 |
|
|
(p6) st8.spill [r3]=r0 // clear error indication in slot for r10 and set unat bit
|
| 701 |
|
|
(p7) br.cond.spnt handle_syscall_error // handle potential syscall failure
|
| 702 |
|
|
END(ia64_ret_from_execve_syscall)
|
| 703 |
|
|
// fall through
|
| 704 |
|
|
GLOBAL_ENTRY(ia64_leave_kernel)
|
| 705 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 706 |
|
|
lfetch.fault [sp]
|
| 707 |
|
|
movl r14=.restart
|
| 708 |
|
|
;;
|
| 709 |
|
|
mov.ret.sptk rp=r14,.restart
|
| 710 |
|
|
cmp.eq p0,pLvSys=r0,r0 // pLvSys=0: leave from kernel
|
| 711 |
|
|
.restart:
|
| 712 |
|
|
// need_resched and signals atomic test
|
| 713 |
|
|
(pUser) rsm psr.i
|
| 714 |
|
|
adds r17=IA64_TASK_NEED_RESCHED_OFFSET,r13
|
| 715 |
|
|
adds r18=IA64_TASK_SIGPENDING_OFFSET,r13
|
| 716 |
|
|
#ifdef CONFIG_PERFMON
|
| 717 |
|
|
adds r19=IA64_TASK_PFM_OVFL_BLOCK_RESET_OFFSET,r13
|
| 718 |
|
|
#endif
|
| 719 |
|
|
;;
|
| 720 |
|
|
#ifdef CONFIG_PERFMON
|
| 721 |
|
|
(pUser) ld8 r19=[r19] // load current->thread.pfm_ovfl_block_reset
|
| 722 |
|
|
#endif
|
| 723 |
|
|
(pUser) ld8 r17=[r17] // load current->need_resched
|
| 724 |
|
|
(pUser) ld4 r18=[r18] // load current->sigpending
|
| 725 |
|
|
;;
|
| 726 |
|
|
#ifdef CONFIG_PERFMON
|
| 727 |
|
|
(pUser) cmp.ne.unc p9,p0=r19,r0 // current->thread.pfm_ovfl_block_reset != 0?
|
| 728 |
|
|
#endif
|
| 729 |
|
|
(pUser) cmp.ne.unc p7,p0=r17,r0 // current->need_resched != 0?
|
| 730 |
|
|
(pUser) cmp.ne.unc p8,p0=r18,r0 // current->sigpending != 0?
|
| 731 |
|
|
;;
|
| 732 |
|
|
#ifdef CONFIG_PERFMON
|
| 733 |
|
|
(p9) br.call.spnt.many b7=pfm_ovfl_block_reset
|
| 734 |
|
|
#endif
|
| 735 |
|
|
#if __GNUC__ < 3
|
| 736 |
|
|
(p7) br.call.spnt.many b7=invoke_schedule
|
| 737 |
|
|
#else
|
| 738 |
|
|
(p7) br.call.spnt.many b7=schedule
|
| 739 |
|
|
#endif
|
| 740 |
|
|
(p8) br.call.spnt.many rp=handle_signal_delivery // check & deliver pending signals (once)
|
| 741 |
|
|
|
| 742 |
|
|
adds r20=PT(CR_IPSR)+16,r12
|
| 743 |
|
|
adds r21=PT(PR)+16,r12
|
| 744 |
|
|
;;
|
| 745 |
|
|
lfetch.fault.excl [r20]
|
| 746 |
|
|
lfetch.fault.excl [r21]
|
| 747 |
|
|
adds r2=PT(B6)+16,r12
|
| 748 |
|
|
adds r3=PT(R16)+16,r12
|
| 749 |
|
|
mov r29=PT(R24)-PT(B6)
|
| 750 |
|
|
mov r30=PT(B7)-PT(R24)
|
| 751 |
|
|
;;
|
| 752 |
|
|
// start restoring the state saved on the kernel stack (struct pt_regs):
|
| 753 |
|
|
ld8 r28=[r2],r29 // b6
|
| 754 |
|
|
ld8.fill r16=[r3],128
|
| 755 |
|
|
mov r31=PT(AR_CSD)-PT(AR_CCV)
|
| 756 |
|
|
;;
|
| 757 |
|
|
ld8.fill r24=[r2],r30
|
| 758 |
|
|
ld8 r15=[r3],r31
|
| 759 |
|
|
;;
|
| 760 |
|
|
ld8 r29=[r2],16 // b7
|
| 761 |
|
|
ld8 r30=[r3],16 // ar.csd
|
| 762 |
|
|
;;
|
| 763 |
|
|
ld8 r31=[r2],16 // ar.ssd
|
| 764 |
|
|
ld8.fill r8=[r3],16
|
| 765 |
|
|
;;
|
| 766 |
|
|
ld8.fill r9=[r2],16
|
| 767 |
|
|
ld8.fill r10=[r3],PT(R17)-PT(R10)
|
| 768 |
|
|
;;
|
| 769 |
|
|
ld8.fill r11=[r2],PT(R18)-PT(R11)
|
| 770 |
|
|
ld8.fill r17=[r3],16
|
| 771 |
|
|
;;
|
| 772 |
|
|
ld8.fill r18=[r2],16
|
| 773 |
|
|
ld8.fill r19=[r3],16
|
| 774 |
|
|
;;
|
| 775 |
|
|
ld8.fill r20=[r2],16
|
| 776 |
|
|
ld8.fill r21=[r3],16
|
| 777 |
|
|
mov ar.csd=r30
|
| 778 |
|
|
mov ar.ssd=r31
|
| 779 |
|
|
;;
|
| 780 |
|
|
rsm psr.i | psr.ic // initiate turning off of interrupt and interruption collection
|
| 781 |
|
|
invala // invalidate ALAT
|
| 782 |
|
|
;;
|
| 783 |
|
|
ld8.fill r22=[r2],24
|
| 784 |
|
|
ld8.fill r23=[r3],24
|
| 785 |
|
|
mov b6=r28
|
| 786 |
|
|
;;
|
| 787 |
|
|
ld8.fill r25=[r2],16
|
| 788 |
|
|
ld8.fill r26=[r3],16
|
| 789 |
|
|
mov b7=r29
|
| 790 |
|
|
;;
|
| 791 |
|
|
ld8.fill r27=[r2],16
|
| 792 |
|
|
ld8.fill r28=[r3],16
|
| 793 |
|
|
;;
|
| 794 |
|
|
ld8.fill r29=[r2],16
|
| 795 |
|
|
ld8.fill r30=[r3],24
|
| 796 |
|
|
;;
|
| 797 |
|
|
ld8.fill r31=[r2],32
|
| 798 |
|
|
ldf.fill f6=[r3],32
|
| 799 |
|
|
;;
|
| 800 |
|
|
ldf.fill f7=[r2],32
|
| 801 |
|
|
ldf.fill f8=[r3],32
|
| 802 |
|
|
;;
|
| 803 |
|
|
srlz.i // ensure interruption collection is off
|
| 804 |
|
|
mov ar.ccv=r15
|
| 805 |
|
|
;;
|
| 806 |
|
|
ldf.fill f9=[r2],32
|
| 807 |
|
|
ldf.fill f10=[r3],32
|
| 808 |
|
|
bsw.0 // switch back to bank 0
|
| 809 |
|
|
;;
|
| 810 |
|
|
ldf.fill f11=[r2]
|
| 811 |
|
|
adds r16=PT(CR_IPSR)+16,r12
|
| 812 |
|
|
adds r17=PT(CR_IIP)+16,r12
|
| 813 |
|
|
;;
|
| 814 |
|
|
ld8 r29=[r16],16 // load cr.ipsr
|
| 815 |
|
|
ld8 r28=[r17],16 // load cr.iip
|
| 816 |
|
|
;;
|
| 817 |
|
|
ld8 r30=[r16],16 // load cr.ifs
|
| 818 |
|
|
ld8 r25=[r17],16 // load ar.unat
|
| 819 |
|
|
cmp.eq p9,p0=r0,r0 // set p9 to indicate that we should restore cr.ifs
|
| 820 |
|
|
;;
|
| 821 |
|
|
ld8 r26=[r16],16 // load ar.pfs
|
| 822 |
|
|
ld8 r27=[r17],16 // load ar.rsc
|
| 823 |
|
|
;;
|
| 824 |
|
|
ld8 r24=[r16],16 // load ar.rnat (may be garbage)
|
| 825 |
|
|
ld8 r23=[r17],16 // load ar.bspstore (may be garbage)
|
| 826 |
|
|
;;
|
| 827 |
|
|
ld8 r31=[r16],16 // load predicates
|
| 828 |
|
|
ld8 r21=[r17],16 // load b0
|
| 829 |
|
|
;;
|
| 830 |
|
|
ld8 r19=[r16],16 // load ar.rsc value for "loadrs"
|
| 831 |
|
|
ld8.fill r1=[r17],16 // load r1
|
| 832 |
|
|
;;
|
| 833 |
|
|
ld8.fill r12=[r16],16
|
| 834 |
|
|
ld8.fill r13=[r17],16
|
| 835 |
|
|
;;
|
| 836 |
|
|
ld8 r20=[r16],16
|
| 837 |
|
|
ld8.fill r15=[r17],16
|
| 838 |
|
|
;;
|
| 839 |
|
|
ld8.fill r14=[r16]
|
| 840 |
|
|
ld8.fill r2=[r17],16
|
| 841 |
|
|
adds r18=16,r16
|
| 842 |
|
|
;;
|
| 843 |
|
|
mov r16=ar.bsp // get existing backing store pointer
|
| 844 |
|
|
movl r17=PERCPU_ADDR+IA64_CPU_PHYS_STACKED_SIZE_P8_OFFSET
|
| 845 |
|
|
;;
|
| 846 |
|
|
ld8.fill r3=[r18]
|
| 847 |
|
|
ld4 r17=[r17] // r17 = cpu_data->phys_stacked_size_p8
|
| 848 |
|
|
shr.u r18=r19,16 // get byte size of existing "dirty" partition
|
| 849 |
|
|
(pKern) br.cond.dpnt skip_rbs_switch
|
| 850 |
|
|
/*
|
| 851 |
|
|
* Restore user backing store.
|
| 852 |
|
|
*
|
| 853 |
|
|
* NOTE: alloc, loadrs, and cover can't be predicated.
|
| 854 |
|
|
*/
|
| 855 |
|
|
(pNonSys) br.cond.dpnt dont_preserve_current_frame
|
| 856 |
|
|
cover // add current frame into dirty partition and set cr.ifs
|
| 857 |
|
|
;;
|
| 858 |
|
|
mov r19=ar.bsp // get new backing store pointer
|
| 859 |
|
|
sub r16=r16,r18 // krbs = old bsp - size of dirty partition
|
| 860 |
|
|
cmp.ne p9,p0=r0,r0 // clear p9 to skip restore of cr.ifs
|
| 861 |
|
|
;;
|
| 862 |
|
|
sub r19=r19,r16 // calculate total byte size of dirty partition
|
| 863 |
|
|
add r18=64,r18 // don't force in0-in7 into memory...
|
| 864 |
|
|
;;
|
| 865 |
|
|
shl r19=r19,16 // shift size of dirty partition into loadrs position
|
| 866 |
|
|
;;
|
| 867 |
|
|
dont_preserve_current_frame:
|
| 868 |
|
|
/*
|
| 869 |
|
|
* To prevent leaking bits between the kernel and user-space,
|
| 870 |
|
|
* we must clear the stacked registers in the "invalid" partition here.
|
| 871 |
|
|
* Not pretty, but at least it's fast (3.34 registers/cycle on Itanium,
|
| 872 |
|
|
* 5 registers/cycle on McKinley).
|
| 873 |
|
|
*/
|
| 874 |
|
|
# define pRecurse p6
|
| 875 |
|
|
# define pReturn p7
|
| 876 |
|
|
#ifdef CONFIG_ITANIUM
|
| 877 |
|
|
# define Nregs 10
|
| 878 |
|
|
#else
|
| 879 |
|
|
# define Nregs 14
|
| 880 |
|
|
#endif
|
| 881 |
|
|
alloc loc0=ar.pfs,2,Nregs-2,2,0
|
| 882 |
|
|
shr.u loc1=r18,9 // RNaTslots <= floor(dirtySize / (64*8))
|
| 883 |
|
|
sub r17=r17,r18 // r17 = (physStackedSize + 8) - dirtySize
|
| 884 |
|
|
;;
|
| 885 |
|
|
mov ar.rsc=r19 // load ar.rsc to be used for "loadrs"
|
| 886 |
|
|
shladd in0=loc1,3,r17
|
| 887 |
|
|
mov in1=0
|
| 888 |
|
|
;;
|
| 889 |
|
|
rse_clear_invalid:
|
| 890 |
|
|
#ifdef CONFIG_ITANIUM
|
| 891 |
|
|
// cycle 0
|
| 892 |
|
|
{ .mii
|
| 893 |
|
|
alloc loc0=ar.pfs,2,Nregs-2,2,0
|
| 894 |
|
|
cmp.lt pRecurse,p0=Nregs*8,in0 // if more than Nregs regs left to clear, (re)curse
|
| 895 |
|
|
add out0=-Nregs*8,in0
|
| 896 |
|
|
}{ .mfb
|
| 897 |
|
|
add out1=1,in1 // increment recursion count
|
| 898 |
|
|
nop.f 0
|
| 899 |
|
|
nop.b 0 // can't do br.call here because of alloc (WAW on CFM)
|
| 900 |
|
|
;;
|
| 901 |
|
|
}{ .mfi // cycle 1
|
| 902 |
|
|
mov loc1=0
|
| 903 |
|
|
nop.f 0
|
| 904 |
|
|
mov loc2=0
|
| 905 |
|
|
}{ .mib
|
| 906 |
|
|
mov loc3=0
|
| 907 |
|
|
mov loc4=0
|
| 908 |
|
|
(pRecurse) br.call.sptk.many b0=rse_clear_invalid
|
| 909 |
|
|
|
| 910 |
|
|
}{ .mfi // cycle 2
|
| 911 |
|
|
mov loc5=0
|
| 912 |
|
|
nop.f 0
|
| 913 |
|
|
cmp.ne pReturn,p0=r0,in1 // if recursion count != 0, we need to do a br.ret
|
| 914 |
|
|
}{ .mib
|
| 915 |
|
|
mov loc6=0
|
| 916 |
|
|
mov loc7=0
|
| 917 |
|
|
(pReturn) br.ret.sptk.many b0
|
| 918 |
|
|
}
|
| 919 |
|
|
#else /* !CONFIG_ITANIUM */
|
| 920 |
|
|
alloc loc0=ar.pfs,2,Nregs-2,2,0
|
| 921 |
|
|
cmp.lt pRecurse,p0=Nregs*8,in0 // if more than Nregs regs left to clear, (re)curse
|
| 922 |
|
|
add out0=-Nregs*8,in0
|
| 923 |
|
|
add out1=1,in1 // increment recursion count
|
| 924 |
|
|
mov loc1=0
|
| 925 |
|
|
mov loc2=0
|
| 926 |
|
|
;;
|
| 927 |
|
|
mov loc3=0
|
| 928 |
|
|
mov loc4=0
|
| 929 |
|
|
mov loc5=0
|
| 930 |
|
|
mov loc6=0
|
| 931 |
|
|
mov loc7=0
|
| 932 |
|
|
(pRecurse) br.call.sptk.many b0=rse_clear_invalid
|
| 933 |
|
|
;;
|
| 934 |
|
|
mov loc8=0
|
| 935 |
|
|
mov loc9=0
|
| 936 |
|
|
cmp.ne pReturn,p0=r0,in1 // if recursion count != 0, we need to do a br.ret
|
| 937 |
|
|
mov loc10=0
|
| 938 |
|
|
mov loc11=0
|
| 939 |
|
|
(pReturn) br.ret.sptk.many b0
|
| 940 |
|
|
#endif /* !CONFIG_ITANIUM */
|
| 941 |
|
|
# undef pRecurse
|
| 942 |
|
|
# undef pReturn
|
| 943 |
|
|
;;
|
| 944 |
|
|
alloc r17=ar.pfs,0,0,0,0 // drop current register frame
|
| 945 |
|
|
;;
|
| 946 |
|
|
loadrs
|
| 947 |
|
|
;;
|
| 948 |
|
|
skip_rbs_switch:
|
| 949 |
|
|
(pLvSys)mov r19=r0 // clear r19 for leave_syscall, no-op otherwise
|
| 950 |
|
|
mov b0=r21
|
| 951 |
|
|
mov ar.pfs=r26
|
| 952 |
|
|
(pUser) mov ar.bspstore=r23
|
| 953 |
|
|
(p9) mov cr.ifs=r30
|
| 954 |
|
|
(pLvSys)mov r16=r0 // clear r16 for leave_syscall, no-op otherwise
|
| 955 |
|
|
mov cr.ipsr=r29
|
| 956 |
|
|
mov ar.fpsr=r20
|
| 957 |
|
|
(pLvSys)mov r17=r0 // clear r17 for leave_syscall, no-op otherwise
|
| 958 |
|
|
mov cr.iip=r28
|
| 959 |
|
|
;;
|
| 960 |
|
|
(pUser) mov ar.rnat=r24 // must happen with RSE in lazy mode
|
| 961 |
|
|
(pLvSys)mov r18=r0 // clear r18 for leave_syscall, no-op otherwise
|
| 962 |
|
|
mov ar.rsc=r27
|
| 963 |
|
|
mov ar.unat=r25
|
| 964 |
|
|
mov pr=r31,-1
|
| 965 |
|
|
rfi
|
| 966 |
|
|
END(ia64_leave_kernel)
|
| 967 |
|
|
|
| 968 |
|
|
ENTRY(handle_syscall_error)
|
| 969 |
|
|
/*
|
| 970 |
|
|
* Some system calls (e.g., ptrace, mmap) can return arbitrary
|
| 971 |
|
|
* values which could lead us to mistake a negative return
|
| 972 |
|
|
* value as a failed syscall. Those syscall must deposit
|
| 973 |
|
|
* a non-zero value in pt_regs.r8 to indicate an error.
|
| 974 |
|
|
* If pt_regs.r8 is zero, we assume that the call completed
|
| 975 |
|
|
* successfully.
|
| 976 |
|
|
*/
|
| 977 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 978 |
|
|
ld8 r3=[r2] // load pt_regs.r8
|
| 979 |
|
|
sub r9=0,r8 // negate return value to get errno
|
| 980 |
|
|
;;
|
| 981 |
|
|
mov r10=-1 // return -1 in pt_regs.r10 to indicate error
|
| 982 |
|
|
cmp.eq p6,p7=r3,r0 // is pt_regs.r8==0?
|
| 983 |
|
|
adds r3=16,r2 // r3=&pt_regs.r10
|
| 984 |
|
|
;;
|
| 985 |
|
|
(p6) mov r9=r8
|
| 986 |
|
|
(p6) mov r10=0
|
| 987 |
|
|
;;
|
| 988 |
|
|
.mem.offset 0,0; st8.spill [r2]=r9 // store errno in pt_regs.r8 and set unat bit
|
| 989 |
|
|
.mem.offset 8,0; st8.spill [r3]=r10 // store error indication in pt_regs.r10 and set unat bit
|
| 990 |
|
|
br.cond.sptk ia64_leave_syscall
|
| 991 |
|
|
END(handle_syscall_error)
|
| 992 |
|
|
|
| 993 |
|
|
/*
|
| 994 |
|
|
* Invoke schedule_tail(task) while preserving in0-in7, which may be needed
|
| 995 |
|
|
* in case a system call gets restarted.
|
| 996 |
|
|
*/
|
| 997 |
|
|
GLOBAL_ENTRY(ia64_invoke_schedule_tail)
|
| 998 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
|
| 999 |
|
|
alloc loc1=ar.pfs,8,2,1,0
|
| 1000 |
|
|
mov loc0=rp
|
| 1001 |
|
|
mov out0=r8 // Address of previous task
|
| 1002 |
|
|
;;
|
| 1003 |
|
|
br.call.sptk.many rp=schedule_tail
|
| 1004 |
|
|
.ret11: mov ar.pfs=loc1
|
| 1005 |
|
|
mov rp=loc0
|
| 1006 |
|
|
br.ret.sptk.many rp
|
| 1007 |
|
|
END(ia64_invoke_schedule_tail)
|
| 1008 |
|
|
|
| 1009 |
|
|
#if __GNUC__ < 3
|
| 1010 |
|
|
|
| 1011 |
|
|
/*
|
| 1012 |
|
|
* Invoke schedule() while preserving in0-in7, which may be needed
|
| 1013 |
|
|
* in case a system call gets restarted. Note that declaring schedule()
|
| 1014 |
|
|
* with asmlinkage() is NOT enough because that will only preserve as many
|
| 1015 |
|
|
* registers as there are formal arguments.
|
| 1016 |
|
|
*
|
| 1017 |
|
|
* XXX fix me: with gcc 3.0, we won't need this anymore because syscall_linkage
|
| 1018 |
|
|
* renders all eight input registers (in0-in7) as "untouchable".
|
| 1019 |
|
|
*/
|
| 1020 |
|
|
ENTRY(invoke_schedule)
|
| 1021 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
|
| 1022 |
|
|
alloc loc1=ar.pfs,8,2,0,0
|
| 1023 |
|
|
mov loc0=rp
|
| 1024 |
|
|
;;
|
| 1025 |
|
|
.body
|
| 1026 |
|
|
br.call.sptk.many rp=schedule
|
| 1027 |
|
|
.ret14: mov ar.pfs=loc1
|
| 1028 |
|
|
mov rp=loc0
|
| 1029 |
|
|
br.ret.sptk.many rp
|
| 1030 |
|
|
END(invoke_schedule)
|
| 1031 |
|
|
|
| 1032 |
|
|
#endif /* __GNUC__ < 3 */
|
| 1033 |
|
|
|
| 1034 |
|
|
/*
|
| 1035 |
|
|
* Setup stack and call ia64_do_signal. Note that pSys and pNonSys need to
|
| 1036 |
|
|
* be set up by the caller. We declare 8 input registers so the system call
|
| 1037 |
|
|
* args get preserved, in case we need to restart a system call.
|
| 1038 |
|
|
*/
|
| 1039 |
|
|
ENTRY(handle_signal_delivery)
|
| 1040 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
|
| 1041 |
|
|
alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart!
|
| 1042 |
|
|
mov r9=ar.unat
|
| 1043 |
|
|
mov loc0=rp // save return address
|
| 1044 |
|
|
mov out0=0 // there is no "oldset"
|
| 1045 |
|
|
adds out1=8,sp // out1=&sigscratch->ar_pfs
|
| 1046 |
|
|
(pSys) mov out2=1 // out2==1 => we're in a syscall
|
| 1047 |
|
|
;;
|
| 1048 |
|
|
(pNonSys) mov out2=0 // out2==0 => not a syscall
|
| 1049 |
|
|
.fframe 16
|
| 1050 |
|
|
.spillpsp ar.unat, 16 // (note that offset is relative to psp+0x10!)
|
| 1051 |
|
|
st8 [sp]=r9,-16 // allocate space for ar.unat and save it
|
| 1052 |
|
|
st8 [out1]=loc1,-8 // save ar.pfs, out1=&sigscratch
|
| 1053 |
|
|
.body
|
| 1054 |
|
|
br.call.sptk.many rp=ia64_do_signal
|
| 1055 |
|
|
.ret15: .restore sp
|
| 1056 |
|
|
adds sp=16,sp // pop scratch stack space
|
| 1057 |
|
|
;;
|
| 1058 |
|
|
ld8 r9=[sp] // load new unat from sw->caller_unat
|
| 1059 |
|
|
mov rp=loc0
|
| 1060 |
|
|
;;
|
| 1061 |
|
|
mov ar.unat=r9
|
| 1062 |
|
|
mov ar.pfs=loc1
|
| 1063 |
|
|
br.ret.sptk.many rp
|
| 1064 |
|
|
END(handle_signal_delivery)
|
| 1065 |
|
|
|
| 1066 |
|
|
GLOBAL_ENTRY(sys_rt_sigsuspend)
|
| 1067 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
|
| 1068 |
|
|
alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart!
|
| 1069 |
|
|
mov r9=ar.unat
|
| 1070 |
|
|
mov loc0=rp // save return address
|
| 1071 |
|
|
mov out0=in0 // mask
|
| 1072 |
|
|
mov out1=in1 // sigsetsize
|
| 1073 |
|
|
adds out2=8,sp // out2=&sigscratch->ar_pfs
|
| 1074 |
|
|
;;
|
| 1075 |
|
|
.fframe 16
|
| 1076 |
|
|
.spillpsp ar.unat, 16 // (note that offset is relative to psp+0x10!)
|
| 1077 |
|
|
st8 [sp]=r9,-16 // allocate space for ar.unat and save it
|
| 1078 |
|
|
st8 [out2]=loc1,-8 // save ar.pfs, out2=&sigscratch
|
| 1079 |
|
|
.body
|
| 1080 |
|
|
br.call.sptk.many rp=ia64_rt_sigsuspend
|
| 1081 |
|
|
.ret17: .restore sp
|
| 1082 |
|
|
adds sp=16,sp // pop scratch stack space
|
| 1083 |
|
|
;;
|
| 1084 |
|
|
ld8 r9=[sp] // load new unat from sw->caller_unat
|
| 1085 |
|
|
mov rp=loc0
|
| 1086 |
|
|
;;
|
| 1087 |
|
|
mov ar.unat=r9
|
| 1088 |
|
|
mov ar.pfs=loc1
|
| 1089 |
|
|
br.ret.sptk.many rp
|
| 1090 |
|
|
END(sys_rt_sigsuspend)
|
| 1091 |
|
|
|
| 1092 |
|
|
ENTRY(sys_rt_sigreturn)
|
| 1093 |
|
|
PT_REGS_UNWIND_INFO(0)
|
| 1094 |
|
|
alloc r2=ar.pfs,0,0,1,0
|
| 1095 |
|
|
.prologue
|
| 1096 |
|
|
PT_REGS_SAVES(16)
|
| 1097 |
|
|
adds sp=-16,sp
|
| 1098 |
|
|
.body
|
| 1099 |
|
|
cmp.eq pNonSys,pSys=r0,r0 // sigreturn isn't a normal syscall...
|
| 1100 |
|
|
;;
|
| 1101 |
|
|
/* After signal handler, live registers f6-f11 are restored to the previous
|
| 1102 |
|
|
* executing context values for synchronized signals(from exceptions); or they
|
| 1103 |
|
|
* are cleared to 0 for asynchronized signals(from syscalls). These live registers
|
| 1104 |
|
|
* will be put into pt_regs to return back to user space.
|
| 1105 |
|
|
*/
|
| 1106 |
|
|
adds r16=PT(F6)+32,sp
|
| 1107 |
|
|
adds r17=PT(F7)+32,sp
|
| 1108 |
|
|
;;
|
| 1109 |
|
|
stf.spill [r16]=f6,32
|
| 1110 |
|
|
stf.spill [r17]=f7,32
|
| 1111 |
|
|
;;
|
| 1112 |
|
|
stf.spill [r16]=f8,32
|
| 1113 |
|
|
stf.spill [r17]=f9,32
|
| 1114 |
|
|
;;
|
| 1115 |
|
|
stf.spill [r16]=f10
|
| 1116 |
|
|
stf.spill [r17]=f11
|
| 1117 |
|
|
adds out0=16,sp // out0 = &sigscratch
|
| 1118 |
|
|
br.call.sptk.many rp=ia64_rt_sigreturn
|
| 1119 |
|
|
.ret19: .restore sp 0
|
| 1120 |
|
|
adds sp=16,sp
|
| 1121 |
|
|
;;
|
| 1122 |
|
|
ld8 r9=[sp] // load new ar.unat
|
| 1123 |
|
|
mov.sptk b7=r8,ia64_leave_kernel
|
| 1124 |
|
|
;;
|
| 1125 |
|
|
mov ar.unat=r9
|
| 1126 |
|
|
br.many b7
|
| 1127 |
|
|
END(sys_rt_sigreturn)
|
| 1128 |
|
|
|
| 1129 |
|
|
GLOBAL_ENTRY(ia64_prepare_handle_unaligned)
|
| 1130 |
|
|
.prologue
|
| 1131 |
|
|
/*
|
| 1132 |
|
|
* r16 = fake ar.pfs, we simply need to make sure privilege is still 0
|
| 1133 |
|
|
*/
|
| 1134 |
|
|
mov r16=r0
|
| 1135 |
|
|
DO_SAVE_SWITCH_STACK
|
| 1136 |
|
|
br.call.sptk.many rp=ia64_handle_unaligned // stack frame setup in ivt
|
| 1137 |
|
|
.ret21: .body
|
| 1138 |
|
|
DO_LOAD_SWITCH_STACK
|
| 1139 |
|
|
br.cond.sptk.many rp // goes to ia64_leave_kernel
|
| 1140 |
|
|
END(ia64_prepare_handle_unaligned)
|
| 1141 |
|
|
|
| 1142 |
|
|
//
|
| 1143 |
|
|
// unw_init_running(void (*callback)(info, arg), void *arg)
|
| 1144 |
|
|
//
|
| 1145 |
|
|
# define EXTRA_FRAME_SIZE ((UNW_FRAME_INFO_SIZE+15)&~15)
|
| 1146 |
|
|
|
| 1147 |
|
|
GLOBAL_ENTRY(unw_init_running)
|
| 1148 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
|
| 1149 |
|
|
alloc loc1=ar.pfs,2,3,3,0
|
| 1150 |
|
|
;;
|
| 1151 |
|
|
ld8 loc2=[in0],8
|
| 1152 |
|
|
mov loc0=rp
|
| 1153 |
|
|
mov r16=loc1
|
| 1154 |
|
|
DO_SAVE_SWITCH_STACK
|
| 1155 |
|
|
.body
|
| 1156 |
|
|
|
| 1157 |
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
|
| 1158 |
|
|
.fframe IA64_SWITCH_STACK_SIZE+EXTRA_FRAME_SIZE
|
| 1159 |
|
|
SWITCH_STACK_SAVES(EXTRA_FRAME_SIZE)
|
| 1160 |
|
|
adds sp=-EXTRA_FRAME_SIZE,sp
|
| 1161 |
|
|
.body
|
| 1162 |
|
|
;;
|
| 1163 |
|
|
adds out0=16,sp // &info
|
| 1164 |
|
|
mov out1=r13 // current
|
| 1165 |
|
|
adds out2=16+EXTRA_FRAME_SIZE,sp // &switch_stack
|
| 1166 |
|
|
br.call.sptk.many rp=unw_init_frame_info
|
| 1167 |
|
|
1: adds out0=16,sp // &info
|
| 1168 |
|
|
mov b6=loc2
|
| 1169 |
|
|
mov loc2=gp // save gp across indirect function call
|
| 1170 |
|
|
;;
|
| 1171 |
|
|
ld8 gp=[in0]
|
| 1172 |
|
|
mov out1=in1 // arg
|
| 1173 |
|
|
br.call.sptk.many rp=b6 // invoke the callback function
|
| 1174 |
|
|
1: mov gp=loc2 // restore gp
|
| 1175 |
|
|
|
| 1176 |
|
|
// For now, we don't allow changing registers from within
|
| 1177 |
|
|
// unw_init_running; if we ever want to allow that, we'd
|
| 1178 |
|
|
// have to do a load_switch_stack here:
|
| 1179 |
|
|
.restore sp
|
| 1180 |
|
|
adds sp=IA64_SWITCH_STACK_SIZE+EXTRA_FRAME_SIZE,sp
|
| 1181 |
|
|
|
| 1182 |
|
|
mov ar.pfs=loc1
|
| 1183 |
|
|
mov rp=loc0
|
| 1184 |
|
|
br.ret.sptk.many rp
|
| 1185 |
|
|
END(unw_init_running)
|
| 1186 |
|
|
|
| 1187 |
|
|
.rodata
|
| 1188 |
|
|
.align 8
|
| 1189 |
|
|
.globl sys_call_table
|
| 1190 |
|
|
sys_call_table:
|
| 1191 |
|
|
data8 sys_ni_syscall // This must be sys_ni_syscall! See ivt.S.
|
| 1192 |
|
|
data8 sys_exit // 1025
|
| 1193 |
|
|
data8 sys_read
|
| 1194 |
|
|
data8 sys_write
|
| 1195 |
|
|
data8 sys_open
|
| 1196 |
|
|
data8 sys_close
|
| 1197 |
|
|
data8 sys_creat // 1030
|
| 1198 |
|
|
data8 sys_link
|
| 1199 |
|
|
data8 sys_unlink
|
| 1200 |
|
|
data8 ia64_execve
|
| 1201 |
|
|
data8 sys_chdir
|
| 1202 |
|
|
data8 sys_fchdir // 1035
|
| 1203 |
|
|
data8 sys_utimes
|
| 1204 |
|
|
data8 sys_mknod
|
| 1205 |
|
|
data8 sys_chmod
|
| 1206 |
|
|
data8 sys_chown
|
| 1207 |
|
|
data8 sys_lseek // 1040
|
| 1208 |
|
|
data8 sys_getpid
|
| 1209 |
|
|
data8 sys_getppid
|
| 1210 |
|
|
data8 sys_mount
|
| 1211 |
|
|
data8 sys_umount
|
| 1212 |
|
|
data8 sys_setuid // 1045
|
| 1213 |
|
|
data8 sys_getuid
|
| 1214 |
|
|
data8 sys_geteuid
|
| 1215 |
|
|
data8 sys_ptrace
|
| 1216 |
|
|
data8 sys_access
|
| 1217 |
|
|
data8 sys_sync // 1050
|
| 1218 |
|
|
data8 sys_fsync
|
| 1219 |
|
|
data8 sys_fdatasync
|
| 1220 |
|
|
data8 sys_kill
|
| 1221 |
|
|
data8 sys_rename
|
| 1222 |
|
|
data8 sys_mkdir // 1055
|
| 1223 |
|
|
data8 sys_rmdir
|
| 1224 |
|
|
data8 sys_dup
|
| 1225 |
|
|
data8 sys_pipe
|
| 1226 |
|
|
data8 sys_times
|
| 1227 |
|
|
data8 ia64_brk // 1060
|
| 1228 |
|
|
data8 sys_setgid
|
| 1229 |
|
|
data8 sys_getgid
|
| 1230 |
|
|
data8 sys_getegid
|
| 1231 |
|
|
data8 sys_acct
|
| 1232 |
|
|
data8 sys_ioctl // 1065
|
| 1233 |
|
|
data8 sys_fcntl
|
| 1234 |
|
|
data8 sys_umask
|
| 1235 |
|
|
data8 sys_chroot
|
| 1236 |
|
|
data8 sys_ustat
|
| 1237 |
|
|
data8 sys_dup2 // 1070
|
| 1238 |
|
|
data8 sys_setreuid
|
| 1239 |
|
|
data8 sys_setregid
|
| 1240 |
|
|
data8 sys_getresuid
|
| 1241 |
|
|
data8 sys_setresuid
|
| 1242 |
|
|
data8 sys_getresgid // 1075
|
| 1243 |
|
|
data8 sys_setresgid
|
| 1244 |
|
|
data8 sys_getgroups
|
| 1245 |
|
|
data8 sys_setgroups
|
| 1246 |
|
|
data8 sys_getpgid
|
| 1247 |
|
|
data8 sys_setpgid // 1080
|
| 1248 |
|
|
data8 sys_setsid
|
| 1249 |
|
|
data8 sys_getsid
|
| 1250 |
|
|
data8 sys_sethostname
|
| 1251 |
|
|
data8 sys_setrlimit
|
| 1252 |
|
|
data8 sys_getrlimit // 1085
|
| 1253 |
|
|
data8 sys_getrusage
|
| 1254 |
|
|
data8 sys_gettimeofday
|
| 1255 |
|
|
data8 sys_settimeofday
|
| 1256 |
|
|
data8 sys_select
|
| 1257 |
|
|
data8 sys_poll // 1090
|
| 1258 |
|
|
data8 sys_symlink
|
| 1259 |
|
|
data8 sys_readlink
|
| 1260 |
|
|
data8 sys_uselib
|
| 1261 |
|
|
data8 sys_swapon
|
| 1262 |
|
|
data8 sys_swapoff // 1095
|
| 1263 |
|
|
data8 sys_reboot
|
| 1264 |
|
|
data8 sys_truncate
|
| 1265 |
|
|
data8 sys_ftruncate
|
| 1266 |
|
|
data8 sys_fchmod
|
| 1267 |
|
|
data8 sys_fchown // 1100
|
| 1268 |
|
|
data8 ia64_getpriority
|
| 1269 |
|
|
data8 sys_setpriority
|
| 1270 |
|
|
data8 sys_statfs
|
| 1271 |
|
|
data8 sys_fstatfs
|
| 1272 |
|
|
data8 sys_gettid // 1105
|
| 1273 |
|
|
data8 sys_semget
|
| 1274 |
|
|
data8 sys_semop
|
| 1275 |
|
|
data8 sys_semctl
|
| 1276 |
|
|
data8 sys_msgget
|
| 1277 |
|
|
data8 sys_msgsnd // 1110
|
| 1278 |
|
|
data8 sys_msgrcv
|
| 1279 |
|
|
data8 sys_msgctl
|
| 1280 |
|
|
data8 sys_shmget
|
| 1281 |
|
|
data8 ia64_shmat
|
| 1282 |
|
|
data8 sys_shmdt // 1115
|
| 1283 |
|
|
data8 sys_shmctl
|
| 1284 |
|
|
data8 sys_syslog
|
| 1285 |
|
|
data8 sys_setitimer
|
| 1286 |
|
|
data8 sys_getitimer
|
| 1287 |
|
|
data8 ia64_oldstat // 1120
|
| 1288 |
|
|
data8 ia64_oldlstat
|
| 1289 |
|
|
data8 ia64_oldfstat
|
| 1290 |
|
|
data8 sys_vhangup
|
| 1291 |
|
|
data8 sys_lchown
|
| 1292 |
|
|
data8 sys_vm86 // 1125
|
| 1293 |
|
|
data8 sys_wait4
|
| 1294 |
|
|
data8 sys_sysinfo
|
| 1295 |
|
|
data8 sys_clone
|
| 1296 |
|
|
data8 sys_setdomainname
|
| 1297 |
|
|
data8 sys_newuname // 1130
|
| 1298 |
|
|
data8 sys_adjtimex
|
| 1299 |
|
|
data8 ia64_create_module
|
| 1300 |
|
|
data8 sys_init_module
|
| 1301 |
|
|
data8 sys_delete_module
|
| 1302 |
|
|
data8 sys_get_kernel_syms // 1135
|
| 1303 |
|
|
data8 sys_query_module
|
| 1304 |
|
|
data8 sys_quotactl
|
| 1305 |
|
|
data8 sys_bdflush
|
| 1306 |
|
|
data8 sys_sysfs
|
| 1307 |
|
|
data8 sys_personality // 1140
|
| 1308 |
|
|
data8 ia64_ni_syscall // sys_afs_syscall
|
| 1309 |
|
|
data8 sys_setfsuid
|
| 1310 |
|
|
data8 sys_setfsgid
|
| 1311 |
|
|
data8 sys_getdents
|
| 1312 |
|
|
data8 sys_flock // 1145
|
| 1313 |
|
|
data8 sys_readv
|
| 1314 |
|
|
data8 sys_writev
|
| 1315 |
|
|
data8 sys_pread
|
| 1316 |
|
|
data8 sys_pwrite
|
| 1317 |
|
|
data8 sys_sysctl // 1150
|
| 1318 |
|
|
data8 sys_mmap
|
| 1319 |
|
|
data8 sys_munmap
|
| 1320 |
|
|
data8 sys_mlock
|
| 1321 |
|
|
data8 sys_mlockall
|
| 1322 |
|
|
data8 sys_mprotect // 1155
|
| 1323 |
|
|
data8 ia64_mremap
|
| 1324 |
|
|
data8 sys_msync
|
| 1325 |
|
|
data8 sys_munlock
|
| 1326 |
|
|
data8 sys_munlockall
|
| 1327 |
|
|
data8 sys_sched_getparam // 1160
|
| 1328 |
|
|
data8 sys_sched_setparam
|
| 1329 |
|
|
data8 sys_sched_getscheduler
|
| 1330 |
|
|
data8 sys_sched_setscheduler
|
| 1331 |
|
|
data8 sys_sched_yield
|
| 1332 |
|
|
data8 sys_sched_get_priority_max // 1165
|
| 1333 |
|
|
data8 sys_sched_get_priority_min
|
| 1334 |
|
|
data8 sys_sched_rr_get_interval
|
| 1335 |
|
|
data8 sys_nanosleep
|
| 1336 |
|
|
data8 sys_nfsservctl
|
| 1337 |
|
|
data8 sys_prctl // 1170
|
| 1338 |
|
|
data8 sys_getpagesize
|
| 1339 |
|
|
data8 sys_mmap2
|
| 1340 |
|
|
data8 sys_pciconfig_read
|
| 1341 |
|
|
data8 sys_pciconfig_write
|
| 1342 |
|
|
data8 sys_perfmonctl // 1175
|
| 1343 |
|
|
data8 sys_sigaltstack
|
| 1344 |
|
|
data8 sys_rt_sigaction
|
| 1345 |
|
|
data8 sys_rt_sigpending
|
| 1346 |
|
|
data8 sys_rt_sigprocmask
|
| 1347 |
|
|
data8 sys_rt_sigqueueinfo // 1180
|
| 1348 |
|
|
data8 sys_rt_sigreturn
|
| 1349 |
|
|
data8 sys_rt_sigsuspend
|
| 1350 |
|
|
data8 sys_rt_sigtimedwait
|
| 1351 |
|
|
data8 sys_getcwd
|
| 1352 |
|
|
data8 sys_capget // 1185
|
| 1353 |
|
|
data8 sys_capset
|
| 1354 |
|
|
data8 sys_sendfile
|
| 1355 |
|
|
data8 sys_ni_syscall // sys_getpmsg (STREAMS)
|
| 1356 |
|
|
data8 sys_ni_syscall // sys_putpmsg (STREAMS)
|
| 1357 |
|
|
data8 sys_socket // 1190
|
| 1358 |
|
|
data8 sys_bind
|
| 1359 |
|
|
data8 sys_connect
|
| 1360 |
|
|
data8 sys_listen
|
| 1361 |
|
|
data8 sys_accept
|
| 1362 |
|
|
data8 sys_getsockname // 1195
|
| 1363 |
|
|
data8 sys_getpeername
|
| 1364 |
|
|
data8 sys_socketpair
|
| 1365 |
|
|
data8 sys_send
|
| 1366 |
|
|
data8 sys_sendto
|
| 1367 |
|
|
data8 sys_recv // 1200
|
| 1368 |
|
|
data8 sys_recvfrom
|
| 1369 |
|
|
data8 sys_shutdown
|
| 1370 |
|
|
data8 sys_setsockopt
|
| 1371 |
|
|
data8 sys_getsockopt
|
| 1372 |
|
|
data8 sys_sendmsg // 1205
|
| 1373 |
|
|
data8 sys_recvmsg
|
| 1374 |
|
|
data8 sys_pivot_root
|
| 1375 |
|
|
data8 sys_mincore
|
| 1376 |
|
|
data8 sys_madvise
|
| 1377 |
|
|
data8 sys_newstat // 1210
|
| 1378 |
|
|
data8 sys_newlstat
|
| 1379 |
|
|
data8 sys_newfstat
|
| 1380 |
|
|
data8 sys_clone2
|
| 1381 |
|
|
data8 sys_getdents64
|
| 1382 |
|
|
data8 sys_getunwind // 1215
|
| 1383 |
|
|
data8 sys_readahead
|
| 1384 |
|
|
data8 sys_setxattr
|
| 1385 |
|
|
data8 sys_lsetxattr
|
| 1386 |
|
|
data8 sys_fsetxattr
|
| 1387 |
|
|
data8 sys_getxattr // 1220
|
| 1388 |
|
|
data8 sys_lgetxattr
|
| 1389 |
|
|
data8 sys_fgetxattr
|
| 1390 |
|
|
data8 sys_listxattr
|
| 1391 |
|
|
data8 sys_llistxattr
|
| 1392 |
|
|
data8 sys_flistxattr // 1225
|
| 1393 |
|
|
data8 sys_removexattr
|
| 1394 |
|
|
data8 sys_lremovexattr
|
| 1395 |
|
|
data8 sys_fremovexattr
|
| 1396 |
|
|
data8 sys_tkill
|
| 1397 |
|
|
data8 ia64_ni_syscall // 1230
|
| 1398 |
|
|
data8 ia64_ni_syscall
|
| 1399 |
|
|
data8 ia64_ni_syscall
|
| 1400 |
|
|
data8 ia64_ni_syscall
|
| 1401 |
|
|
data8 ia64_ni_syscall
|
| 1402 |
|
|
data8 ia64_ni_syscall // 1235
|
| 1403 |
|
|
data8 ia64_ni_syscall
|
| 1404 |
|
|
data8 ia64_ni_syscall
|
| 1405 |
|
|
data8 ia64_ni_syscall
|
| 1406 |
|
|
data8 ia64_ni_syscall
|
| 1407 |
|
|
data8 ia64_ni_syscall // 1240
|
| 1408 |
|
|
data8 ia64_ni_syscall
|
| 1409 |
|
|
data8 ia64_ni_syscall
|
| 1410 |
|
|
data8 ia64_ni_syscall
|
| 1411 |
|
|
data8 ia64_ni_syscall
|
| 1412 |
|
|
data8 ia64_ni_syscall // 1245
|
| 1413 |
|
|
data8 ia64_ni_syscall
|
| 1414 |
|
|
data8 ia64_ni_syscall
|
| 1415 |
|
|
data8 ia64_ni_syscall
|
| 1416 |
|
|
data8 ia64_ni_syscall
|
| 1417 |
|
|
data8 ia64_ni_syscall // 1250
|
| 1418 |
|
|
data8 ia64_ni_syscall
|
| 1419 |
|
|
data8 ia64_ni_syscall
|
| 1420 |
|
|
data8 ia64_ni_syscall
|
| 1421 |
|
|
data8 ia64_ni_syscall
|
| 1422 |
|
|
data8 ia64_ni_syscall // 1255
|
| 1423 |
|
|
data8 ia64_ni_syscall
|
| 1424 |
|
|
data8 ia64_ni_syscall
|
| 1425 |
|
|
data8 ia64_ni_syscall
|
| 1426 |
|
|
data8 ia64_ni_syscall
|
| 1427 |
|
|
data8 ia64_ni_syscall // 1260
|
| 1428 |
|
|
data8 ia64_ni_syscall
|
| 1429 |
|
|
data8 ia64_ni_syscall
|
| 1430 |
|
|
data8 ia64_ni_syscall
|
| 1431 |
|
|
data8 ia64_ni_syscall
|
| 1432 |
|
|
data8 ia64_ni_syscall // 1265
|
| 1433 |
|
|
data8 ia64_ni_syscall
|
| 1434 |
|
|
data8 ia64_ni_syscall
|
| 1435 |
|
|
data8 ia64_ni_syscall
|
| 1436 |
|
|
data8 ia64_ni_syscall
|
| 1437 |
|
|
data8 ia64_ni_syscall // 1270
|
| 1438 |
|
|
data8 ia64_ni_syscall
|
| 1439 |
|
|
data8 ia64_ni_syscall
|
| 1440 |
|
|
data8 ia64_ni_syscall
|
| 1441 |
|
|
data8 ia64_ni_syscall
|
| 1442 |
|
|
data8 ia64_ni_syscall // 1275
|
| 1443 |
|
|
data8 ia64_ni_syscall
|
| 1444 |
|
|
data8 ia64_ni_syscall
|
| 1445 |
|
|
data8 ia64_ni_syscall
|
