diff options
Diffstat (limited to 'arch/sparc64/kernel/entry.S')
| -rw-r--r-- | arch/sparc64/kernel/entry.S | 63 |
1 files changed, 17 insertions, 46 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index eee516a..d781f10 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -22,8 +22,6 @@ #include <asm/estate.h> #include <asm/auxio.h> -/* #define SYSCALL_TRACING 1 */ - #define curptr g6 #define NR_SYSCALLS 284 /* Each OS is different... */ @@ -553,13 +551,11 @@ do_ivec: sllx %g3, 5, %g3 or %g2, %lo(ivector_table), %g2 add %g2, %g3, %g3 - ldx [%g3 + 0x08], %g2 /* irq_info */ ldub [%g3 + 0x04], %g4 /* pil */ - brz,pn %g2, do_ivec_spurious - mov 1, %g2 - + mov 1, %g2 sllx %g2, %g4, %g2 sllx %g4, 2, %g4 + lduw [%g6 + %g4], %g5 /* g5 = irq_work(cpu, pil) */ stw %g5, [%g3 + 0x00] /* bucket->irq_chain = g5 */ stw %g3, [%g6 + %g4] /* irq_work(cpu, pil) = bucket */ @@ -567,9 +563,9 @@ do_ivec: retry do_ivec_xcall: mov 0x50, %g1 - ldxa [%g1 + %g0] ASI_INTR_R, %g1 srl %g3, 0, %g3 + mov 0x60, %g7 ldxa [%g7 + %g0] ASI_INTR_R, %g7 stxa %g0, [%g0] ASI_INTR_RECEIVE @@ -581,19 +577,6 @@ do_ivec_xcall: 1: jmpl %g3, %g0 nop -do_ivec_spurious: - stw %g3, [%g6 + 0x00] /* irq_work(cpu, 0) = bucket */ - rdpr %pstate, %g5 - - wrpr %g5, PSTATE_IG | PSTATE_AG, %pstate - sethi %hi(109f), %g7 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - call catch_disabled_ivec - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - clr %l6 - .globl save_alternate_globals save_alternate_globals: /* %o0 = save_area */ rdpr %pstate, %o5 @@ -1569,11 +1552,12 @@ sys_ptrace: add %sp, PTREGS_OFF, %o0 nop .align 32 1: ldx [%curptr + TI_FLAGS], %l5 - andcc %l5, _TIF_SYSCALL_TRACE, %g0 + andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 be,pt %icc, rtrap clr %l6 + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + mov 1, %o1 ba,pt %xcc, rtrap clr %l6 @@ -1657,18 +1641,20 @@ linux_sparc_ni_syscall: or %l7, %lo(sys_ni_syscall), %l7 linux_syscall_trace32: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + clr %o1 srl %i0, 0, %o0 - mov %i4, %o4 + srl %i4, 0, %o4 srl %i1, 0, %o1 srl %i2, 0, %o2 b,pt %xcc, 2f srl %i3, 0, %o3 linux_syscall_trace: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + clr %o1 mov %i0, %o0 mov %i1, %o1 mov %i2, %o2 @@ -1686,11 +1672,6 @@ linux_sparc_syscall32: bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI srl %i0, 0, %o0 ! IEU0 sll %g1, 2, %l4 ! IEU0 Group -#ifdef SYSCALL_TRACING - call syscall_trace_entry - add %sp, PTREGS_OFF, %o0 - srl %i0, 0, %o0 -#endif srl %i4, 0, %o4 ! IEU1 lduw [%l7 + %l4], %l7 ! Load srl %i1, 0, %o1 ! IEU0 Group @@ -1698,7 +1679,7 @@ linux_sparc_syscall32: srl %i5, 0, %o5 ! IEU1 srl %i2, 0, %o2 ! IEU0 Group - andcc %l0, _TIF_SYSCALL_TRACE, %g0 ! IEU0 Group + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 bne,pn %icc, linux_syscall_trace32 ! CTI mov %i0, %l5 ! IEU1 call %l7 ! CTI Group brk forced @@ -1714,11 +1695,6 @@ linux_sparc_syscall: bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI mov %i0, %o0 ! IEU0 sll %g1, 2, %l4 ! IEU0 Group -#ifdef SYSCALL_TRACING - call syscall_trace_entry - add %sp, PTREGS_OFF, %o0 - mov %i0, %o0 -#endif mov %i1, %o1 ! IEU1 lduw [%l7 + %l4], %l7 ! Load 4: mov %i2, %o2 ! IEU0 Group @@ -1726,7 +1702,7 @@ linux_sparc_syscall: mov %i3, %o3 ! IEU1 mov %i4, %o4 ! IEU0 Group - andcc %l0, _TIF_SYSCALL_TRACE, %g0 ! IEU1 Group+1 bubble + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 bne,pn %icc, linux_syscall_trace ! CTI Group mov %i0, %l5 ! IEU0 2: call %l7 ! CTI Group brk forced @@ -1735,12 +1711,6 @@ linux_sparc_syscall: 3: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] ret_sys_call: -#ifdef SYSCALL_TRACING - mov %o0, %o1 - call syscall_trace_exit - add %sp, PTREGS_OFF, %o0 - mov %o1, %o0 -#endif ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc sra %o0, 0, %o0 @@ -1760,7 +1730,7 @@ ret_sys_call: 1: cmp %o0, -ERESTART_RESTARTBLOCK bgeu,pn %xcc, 1f - andcc %l0, _TIF_SYSCALL_TRACE, %l6 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6 80: /* System call success, clear Carry condition code. */ andn %g3, %g2, %g3 @@ -1775,7 +1745,7 @@ ret_sys_call: /* System call failure, set Carry condition code. * Also, get abs(errno) to return to the process. */ - andcc %l0, _TIF_SYSCALL_TRACE, %l6 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6 sub %g0, %o0, %o0 or %g3, %g2, %g3 stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] @@ -1788,8 +1758,9 @@ ret_sys_call: b,pt %xcc, rtrap stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] linux_syscall_trace2: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + mov 1, %o1 stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC] ba,pt %xcc, rtrap stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] |
