ia64/kernel/entry.S

64 	alloc loc1=ar.pfs,8,2,3,0
71 	br.call.sptk.many rp=sys_execve
80 (p7)	br.ret.sptk.many rp
100 	br.ret.sptk.many rp
123 	br.call.sptk.many rp=ia64_clone
128 	br.ret.sptk.many rp
151 	br.call.sptk.many rp=ia64_clone
156 	br.ret.sptk.many rp
175 	dep r20=0,in0,61,3		// physical address of "next"
185 (p6)	br.cond.dpnt .map
198 	br.ret.sptk.many rp		// boogie on out in new context
216 	br.cond.sptk .done
257 	add r2=16+3*128,sp
348 	mov ar.rsc=3		// put RSE back into eager mode, pl 0
349 	br.cond.sptk.many b7
448 	mov ar.rsc=3				// put RSE back into eager mode, pl 0
449 	br.cond.sptk.many b7
475 	br.call.sptk.many rp=syscall_trace_enter // give parent a chance to catch syscall args
480 (p6)	br.cond.sptk strace_error		// syscall failed ->
502 	shladd r20=r15,3,r16			// r20 = sys_call_table + 8*(syscall-1024)
509 	br.call.sptk.many rp=b6			// do the syscall
515 (p6)	br.cond.sptk strace_error		// syscall failed ->
520 	br.call.sptk.many rp=syscall_trace_leave // give parent a chance to catch return value
524 	br.cond.sptk ia64_work_pending_syscall_end
535 	br.cond.sptk .strace_save_retval
550 	br.call.sptk.many rp=syscall_trace_leave // give parent a chance to catch return value
552 .ret4:	br.cond.sptk ia64_leave_kernel
558 	alloc loc1=ar.pfs,0,3,1,0
567 	br.call.sptk.many rp=b6	// fn(arg)
573 	br.ret.sptk.many rp
589 	br.call.sptk.many rp=ia64_invoke_schedule_tail
592 (pKStk)	br.call.sptk.many rp=call_payload
601 (p6)	br.cond.spnt .strace_check_retval
610 (p7)	br.cond.spnt handle_syscall_error	// handle potential syscall failure
713 (p6)	br.cond.spnt .work_pending_syscall
758 (pUStk) st1 [r15]=r17				// M2|3
760 (pUStk) st1 [r14]=r17				// M2|3
771 (pKStk) br.cond.dpnt.many skip_rbs_switch		// B
799 	br.cond.sptk.many rbs_switch	// B
855 (p6)	br.cond.spnt .work_pending
963 	//  mib  :  mov add br        ->  mib  : ld8 add br
964 	//  bbb_ :  br  nop cover;;       mbb_ : mov br  cover;;
973 (pKStk)	br.cond.dpnt skip_rbs_switch
982 (pKStk)	br.cond.dpnt skip_rbs_switch
990 (pNonSys) br.cond.dpnt dont_preserve_current_frame
1022 	shladd in0=loc1,3,r17
1036 	nop.b 0				// can't do br.call here because of alloc (WAW on CFM)
1045 (pRecurse) br.call.sptk.many b0=rse_clear_invalid
1050 	cmp.ne pReturn,p0=r0,in1	// if recursion count != 0, we need to do a br.ret
1054 (pReturn) br.ret.sptk.many b0
1069 (pRecurse) br.call.dptk.few b0=rse_clear_invalid
1073 	cmp.ne pReturn,p0=r0,in1	// if recursion count != 0, we need to do a br.ret
1076 (pReturn) br.ret.dptk.many b0
1132 (p6)	br.cond.sptk.few .notify
1133 	br.call.spnt.many rp=preempt_schedule_irq
1135 (pLvSys)br.cond.sptk.few  ia64_work_pending_syscall_end
1136 	br.cond.sptk.many .work_processed_kernel
1139 (pUStk)	br.call.spnt.many rp=notify_resume_user
1141 (pLvSys)br.cond.sptk.few  ia64_work_pending_syscall_end
1142 	br.cond.sptk.many .work_processed_kernel
1151 	br.cond.sptk.many ia64_work_processed_syscall
1168 	br.cond.sptk ia64_leave_syscall
1181 	br.call.sptk.many rp=schedule_tail
1184 	br.ret.sptk.many rp
1197 	alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart!
1210 	br.call.sptk.many rp=do_notify_resume_user
1219 	br.ret.sptk.many rp
1252 	br.call.sptk.many rp=ia64_rt_sigreturn
1260 	br.many b7
1270 	br.call.sptk.many rp=ia64_handle_unaligned	// stack frame setup in ivt
1273 	br.cond.sptk.many rp				// goes to ia64_leave_kernel
1283 	alloc loc1=ar.pfs,2,3,3,0
1300 	br.call.sptk.many rp=unw_init_frame_info
1307 	br.call.sptk.many rp=b6			// invoke the callback function
1318 	br.ret.sptk.many rp
1325 	br ftrace_stub
1330 	br.ret.sptk.many b0
1339 	br.call.sptk.many b0 = ftrace_patch_gp
1363 	br.call.sptk.many b0 = b6
1369 	br ftrace_stub
1380 (p7)	br.sptk.many ftrace_stub
1394 	br.call.sptk.many b0 = b6
1400 	br ftrace_stub
1411 	br.ret.sptk.many b6
1417 	br b7