#include <asm/asmmacro.h>
#include <asm/processor.h>
+#include <asm/ptrace.h>
GLOBAL_ENTRY(mca_handler_bhhook)
- invala // clear RSE ?
- ;; //
- cover //
- ;; //
- clrrrb //
+ invala // clear RSE ?
+ ;;
+ cover
+ ;;
+ clrrrb
;;
- alloc r16=ar.pfs,0,2,1,0 // make a new frame
+ 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
+ ;;
+ addl r22=IA64_RBS_OFFSET,r2
+ ;;
+ mov ar.bspstore=r22
;;
- mov r13=IA64_KR(CURRENT) // current task pointer
+ addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2
;;
- adds r12=IA64_TASK_THREAD_KSP_OFFSET,r13
+ adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13
;;
- ld8 r12=[r12] // stack pointer
+ st1 [r2]=r0 // clear current->thread.on_ustack flag
+ mov loc0=r16
+ movl loc1=mca_handler_bh // recovery C function
;;
- mov loc0=r16
- movl loc1=mca_handler_bh // recovery C function
+ mov out0=r8 // poisoned address
+ mov b6=loc1
;;
- mov out0=r8 // poisoned address
- mov b6=loc1
+ mov loc1=rp
;;
- mov loc1=rp
+ ssm psr.i
;;
- br.call.sptk.many rp=b6 // not return ...
+ 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)