#include <asm/ptrace.h>
GLOBAL_ENTRY(mca_handler_bhhook)
- invala // clear RSE ?
- ;; //
- cover //
- ;; //
- clrrrb //
- ;;
- alloc r16=ar.pfs,0,2,1,0 // make a new frame
- ;;
- mov ar.rsc=0
- ;;
- mov r13=IA64_KR(CURRENT) // current task pointer
- ;;
- mov r2=r13
+ invala // clear RSE ?
+ cover
;;
- addl r22=IA64_RBS_OFFSET,r2
- ;;
- mov ar.bspstore=r22
+ clrrrb
+ ;;
+ alloc r16=ar.pfs,0,2,3,0 // make a new frame
+ mov ar.rsc=0
+ mov r13=IA64_KR(CURRENT) // current task pointer
;;
- addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2
+ mov r2=r13
;;
- adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13
+ addl r22=IA64_RBS_OFFSET,r2
;;
- st1 [r2]=r0 // clear current->thread.on_ustack flag
- mov loc0=r16
- movl loc1=mca_handler_bh // recovery C function
+ mov ar.bspstore=r22
+ addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2
;;
- mov out0=r8 // poisoned address
- mov b6=loc1
+ adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13
;;
- mov loc1=rp
+ st1 [r2]=r0 // clear current->thread.on_ustack flag
+ mov loc0=r16
+ movl loc1=mca_handler_bh // recovery C function
;;
- ssm psr.i
+ mov out0=r8 // poisoned address
+ mov out1=r9 // iip
+ mov out2=r10 // psr
+ mov b6=loc1
;;
- br.call.sptk.many rp=b6 // does not return ...
+ mov loc1=rp
+ ssm psr.i | psr.ic
+ br.call.sptk.many rp=b6 // does not return ...
;;
- mov ar.pfs=loc0
- mov rp=loc1
+ mov ar.pfs=loc0
+ mov rp=loc1
;;
- mov r8=r0
+ mov r8=r0
br.ret.sptk.many rp
- ;;
END(mca_handler_bhhook)