ba,pt %xcc, etrap
109: or %g7, %lo(109b), %g7
add %g0, %g0, %g0
- ba,a,pt %xcc, rtrap_clr_l6
+ ba,a,pt %xcc, rtrap
1: TRAP_LOAD_THREAD_REG(%g6, %g1)
ldub [%g6 + TI_FPSAVED], %g5
call do_fpother
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
.globl do_fpother_check_fitos
.align 32
call bad_trap
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
invoke_utrap:
sllx %g3, 3, %g3
call spitfire_access_error
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
/* This is the trap handler entry point for ECC correctable
* errors. They are corrected, but we listen for the trap
call spitfire_data_access_exception_tl1
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
__spitfire_data_access_exception:
rdpr %pstate, %g4
call spitfire_data_access_exception
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
.globl __spitfire_insn_access_exception
.globl __spitfire_insn_access_exception_tl1
call spitfire_insn_access_exception_tl1
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
__spitfire_insn_access_exception:
rdpr %pstate, %g4
call spitfire_insn_access_exception
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
/* These get patched into the trap table at boot time
* once we know we have a cheetah processor.
call cheetah_plus_parity_error
add %sp, PTREGS_OFF, %o1
ba,pt %xcc, rtrap
- clr %l6
+ nop
do_icpe_tl1:
rdpr %tl, %g1 ! Save original trap level
call cheetah_plus_parity_error
add %sp, PTREGS_OFF, %o1
ba,pt %xcc, rtrap
- clr %l6
+ nop
dcpe_icpe_tl1_common:
/* Flush D-cache, re-enable D/I caches in DCU and finally
call do_privact
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
.globl do_mna
do_mna:
call mem_address_unaligned
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
.globl do_lddfmna
do_lddfmna:
call handle_lddfmna
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
.globl do_stdfmna
do_stdfmna:
call handle_stdfmna
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
- clr %l6
+ nop
.globl breakpoint_trap
breakpoint_trap:
ba,pt %xcc, rtrap
nop
-#if defined(CONFIG_SUNOS_EMUL) || defined(CONFIG_SOLARIS_EMUL) || \
- defined(CONFIG_SOLARIS_EMUL_MODULE)
- /* SunOS uses syscall zero as the 'indirect syscall' it looks
- * like indir_syscall(scall_num, arg0, arg1, arg2...); etc.
- * This is complete brain damage.
- */
- .globl sunos_indir
-sunos_indir:
- srl %o0, 0, %o0
- mov %o7, %l4
- cmp %o0, NR_SYSCALLS
- blu,a,pt %icc, 1f
- sll %o0, 0x2, %o0
- sethi %hi(sunos_nosys), %l6
- b,pt %xcc, 2f
- or %l6, %lo(sunos_nosys), %l6
-1: sethi %hi(sunos_sys_table), %l7
- or %l7, %lo(sunos_sys_table), %l7
- lduw [%l7 + %o0], %l6
-2: mov %o1, %o0
- mov %o2, %o1
- mov %o3, %o2
- mov %o4, %o3
- mov %o5, %o4
- call %l6
- mov %l4, %o7
-
- .globl sunos_getpid
-sunos_getpid:
- call sys_getppid
- nop
- call sys_getpid
- stx %o0, [%sp + PTREGS_OFF + PT_V9_I1]
- b,pt %xcc, ret_sys_call
- stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
-
- /* SunOS getuid() returns uid in %o0 and euid in %o1 */
- .globl sunos_getuid
-sunos_getuid:
- call sys32_geteuid16
- nop
- call sys32_getuid16
- stx %o0, [%sp + PTREGS_OFF + PT_V9_I1]
- b,pt %xcc, ret_sys_call
- stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
-
- /* SunOS getgid() returns gid in %o0 and egid in %o1 */
- .globl sunos_getgid
-sunos_getgid:
- call sys32_getegid16
- nop
- call sys32_getgid16
- stx %o0, [%sp + PTREGS_OFF + PT_V9_I1]
- b,pt %xcc, ret_sys_call
- stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
-#endif
-
/* SunOS's execv() call only specifies the argv argument, the
* environment settings are the same as the calling processes.
*/
1: ldx [%curptr + TI_FLAGS], %l5
andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0
be,pt %icc, rtrap
- clr %l6
+ nop
add %sp, PTREGS_OFF, %o0
call syscall_trace
mov 1, %o1
ba,pt %xcc, rtrap
- clr %l6
+ nop
/* This is how fork() was meant to be done, 8 instruction entry.
*
mov %i4, %o4
- /* Linux 32-bit and SunOS system calls enter here... */
+ /* Linux 32-bit system calls enter here... */
.align 32
.globl linux_sparc_syscall32
linux_sparc_syscall32:
srl %i3, 0, %o3 ! IEU0
ba,a,pt %xcc, 3f
- /* Linux native and SunOS system calls enter here... */
+ /* Linux native system calls enter here... */
.align 32
- .globl linux_sparc_syscall, ret_sys_call
+ .globl linux_sparc_syscall
linux_sparc_syscall:
/* Direct access to user regs, much faster. */
cmp %g1, NR_SYSCALLS ! IEU1 Group
bne,pn %icc, linux_syscall_trace2
add %l1, 0x4, %l2 ! npc = npc+4
stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]
- ba,pt %xcc, rtrap_clr_l6
+ ba,pt %xcc, rtrap
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
1:
sub %g0, %o0, %o0
or %g3, %g2, %g3
stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
- mov 1, %l6
stx %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE]
bne,pn %icc, linux_syscall_trace2
add %l1, 0x4, %l2 ! npc = npc+4
2: retl
nop
+ /* Flush %fp and %i7 to the stack for all register
+ * windows active inside of the cpu. This allows
+ * show_stack_trace() to avoid using an expensive
+ * 'flushw'.
+ */
+ .globl stack_trace_flush
+ .type stack_trace_flush,#function
+stack_trace_flush:
+ rdpr %pstate, %o0
+ wrpr %o0, PSTATE_IE, %pstate
+
+ rdpr %cwp, %g1
+ rdpr %canrestore, %g2
+ sub %g1, 1, %g3
+
+1: brz,pn %g2, 2f
+ sub %g2, 1, %g2
+ wrpr %g3, %cwp
+ stx %fp, [%sp + STACK_BIAS + RW_V9_I6]
+ stx %i7, [%sp + STACK_BIAS + RW_V9_I7]
+ ba,pt %xcc, 1b
+ sub %g3, 1, %g3
+
+2: wrpr %g1, %cwp
+ wrpr %o0, %pstate
+
+ retl
+ nop
+ .size stack_trace_flush,.-stack_trace_flush
+
#ifdef CONFIG_SMP
.globl hard_smp_processor_id
hard_smp_processor_id:
projects / linux-2.6 / blobdiff