1 /* SPDX-License-Identifier: GPL-2.0 */ !! 1 /*
2 /* arch/sparc/kernel/entry.S: Sparc trap low- !! 2 * linux/arch/i386/entry.S
3 * 3 *
4 * Copyright (C) 1995, 2007 David S. Miller (d !! 4 * Copyright (C) 1991, 1992 Linus Torvalds
5 * Copyright (C) 1996 Eddie C. Dost (ecd@sky <<
6 * Copyright (C) 1996 Miguel de Icaza (miguel@ <<
7 * Copyright (C) 1996-1999 Jakub Jelinek (jj <<
8 * Copyright (C) 1997 Anton Blanchard (anton@p <<
9 */ 5 */
10 6
11 #include <linux/export.h> !! 7 /*
12 #include <linux/linkage.h> !! 8 * entry.S contains the system-call and fault low-level handling routines.
13 #include <linux/errno.h> !! 9 * This also contains the timer-interrupt handler, as well as all interrupts
14 #include <linux/pgtable.h> !! 10 * and faults that can result in a task-switch.
>> 11 *
>> 12 * NOTE: This code handles signal-recognition, which happens every time
>> 13 * after a timer-interrupt and after each system call.
>> 14 *
>> 15 * I changed all the .align's to 4 (16 byte alignment), as that's faster
>> 16 * on a 486.
>> 17 *
>> 18 * Stack layout in 'ret_from_system_call':
>> 19 * ptrace needs to have all regs on the stack.
>> 20 * if the order here is changed, it needs to be
>> 21 * updated in fork.c:copy_process, signal.c:do_signal,
>> 22 * ptrace.c and ptrace.h
>> 23 *
>> 24 * 0(%esp) - %ebx
>> 25 * 4(%esp) - %ecx
>> 26 * 8(%esp) - %edx
>> 27 * C(%esp) - %esi
>> 28 * 10(%esp) - %edi
>> 29 * 14(%esp) - %ebp
>> 30 * 18(%esp) - %eax
>> 31 * 1C(%esp) - %ds
>> 32 * 20(%esp) - %es
>> 33 * 24(%esp) - orig_eax
>> 34 * 28(%esp) - %eip
>> 35 * 2C(%esp) - %cs
>> 36 * 30(%esp) - %eflags
>> 37 * 34(%esp) - %oldesp
>> 38 * 38(%esp) - %oldss
>> 39 *
>> 40 * "current" is in register %ebx during any slow entries.
>> 41 */
15 42
16 #include <asm/head.h> !! 43 #include <linux/config.h>
17 #include <asm/asi.h> !! 44 #include <linux/sys.h>
>> 45 #include <linux/linkage.h>
>> 46 #include <asm/segment.h>
18 #include <asm/smp.h> 47 #include <asm/smp.h>
19 #include <asm/contregs.h> <<
20 #include <asm/ptrace.h> <<
21 #include <asm/asm-offsets.h> <<
22 #include <asm/psr.h> <<
23 #include <asm/vaddrs.h> <<
24 #include <asm/page.h> <<
25 #include <asm/winmacro.h> <<
26 #include <asm/signal.h> <<
27 #include <asm/obio.h> <<
28 #include <asm/mxcc.h> <<
29 #include <asm/thread_info.h> <<
30 #include <asm/param.h> <<
31 #include <asm/unistd.h> <<
32 <<
33 #include <asm/asmmacro.h> <<
34 <<
35 #define curptr g6 <<
36 <<
37 /* These are just handy. */ <<
38 #define _SV save %sp, -STACKFRAME_SZ, % <<
39 #define _RS restore <<
40 <<
41 #define FLUSH_ALL_KERNEL_WINDOWS \ <<
42 _SV; _SV; _SV; _SV; _SV; _SV; _SV; \ <<
43 _RS; _RS; _RS; _RS; _RS; _RS; _RS; <<
44 <<
45 .text <<
46 <<
47 #ifdef CONFIG_KGDB <<
48 .align 4 <<
49 .globl arch_kgdb_breakpoint <<
50 .type arch_kgdb_breakpoint,# <<
51 arch_kgdb_breakpoint: <<
52 ta 0x7d <<
53 retl <<
54 nop <<
55 .size arch_kgdb_breakpoint,. <<
56 #endif <<
57 <<
58 #if defined(CONFIG_BLK_DEV_FD) || defined(CONF <<
59 .align 4 <<
60 .globl floppy_hardint <<
61 floppy_hardint: <<
62 /* <<
63 * This code cannot touch registers %l <<
64 * because SAVE_ALL depends on their v <<
65 * on %l3 also, but we regenerate it b <<
66 * Other registers are: <<
67 * %l3 -- base address of fdc register <<
68 * %l4 -- pdma_vaddr <<
69 * %l5 -- scratch for ld/st address <<
70 * %l6 -- pdma_size <<
71 * %l7 -- scratch [floppy byte, ld/st <<
72 */ <<
73 <<
74 /* Do we have work to do? */ <<
75 sethi %hi(doing_pdma), %l7 <<
76 ld [%l7 + %lo(doing_pdma)], %l7 <<
77 cmp %l7, 0 <<
78 be floppy_dosoftint <<
79 nop <<
80 <<
81 /* Load fdc register base */ <<
82 sethi %hi(fdc_status), %l3 <<
83 ld [%l3 + %lo(fdc_status)], %l3 <<
84 <<
85 /* Setup register addresses */ <<
86 sethi %hi(pdma_vaddr), %l5 ! tran <<
87 ld [%l5 + %lo(pdma_vaddr)], %l4 <<
88 sethi %hi(pdma_size), %l5 ! byte <<
89 ld [%l5 + %lo(pdma_size)], %l6 <<
90 next_byte: <<
91 ldub [%l3], %l7 <<
92 <<
93 andcc %l7, 0x80, %g0 ! Does <<
94 bz floppy_fifo_emptied ! fifo <<
95 andcc %l7, 0x20, %g0 ! in n <<
96 bz floppy_overrun ! nope <<
97 andcc %l7, 0x40, %g0 ! 0=wr <<
98 bz floppy_write <<
99 sub %l6, 0x1, %l6 <<
100 <<
101 /* Ok, actually read this byte */ <<
102 ldub [%l3 + 1], %l7 <<
103 orcc %g0, %l6, %g0 <<
104 stb %l7, [%l4] <<
105 bne next_byte <<
106 add %l4, 0x1, %l4 <<
107 <<
108 b floppy_tdone <<
109 nop <<
110 <<
111 floppy_write: <<
112 /* Ok, actually write this byte */ <<
113 ldub [%l4], %l7 <<
114 orcc %g0, %l6, %g0 <<
115 stb %l7, [%l3 + 1] <<
116 bne next_byte <<
117 add %l4, 0x1, %l4 <<
118 <<
119 /* fall through... */ <<
120 floppy_tdone: <<
121 sethi %hi(pdma_vaddr), %l5 <<
122 st %l4, [%l5 + %lo(pdma_vaddr)] <<
123 sethi %hi(pdma_size), %l5 <<
124 st %l6, [%l5 + %lo(pdma_size)] <<
125 /* Flip terminal count pin */ <<
126 set auxio_register, %l7 <<
127 ld [%l7], %l7 <<
128 <<
129 ldub [%l7], %l5 <<
130 <<
131 or %l5, 0xc2, %l5 <<
132 stb %l5, [%l7] <<
133 andn %l5, 0x02, %l5 <<
134 <<
135 2: <<
136 /* Kill some time so the bits set */ <<
137 WRITE_PAUSE <<
138 WRITE_PAUSE <<
139 <<
140 stb %l5, [%l7] <<
141 <<
142 /* Prevent recursion */ <<
143 sethi %hi(doing_pdma), %l7 <<
144 b floppy_dosoftint <<
145 st %g0, [%l7 + %lo(doing_pdma)] <<
146 <<
147 /* We emptied the FIFO, but we haven't <<
148 * as of yet. Store the current trans <<
149 * bytes left to read so we can contin <<
150 * fast IRQ comes in. <<
151 */ <<
152 floppy_fifo_emptied: <<
153 sethi %hi(pdma_vaddr), %l5 <<
154 st %l4, [%l5 + %lo(pdma_vaddr)] <<
155 sethi %hi(pdma_size), %l7 <<
156 st %l6, [%l7 + %lo(pdma_size)] <<
157 <<
158 /* Restore condition codes */ <<
159 wr %l0, 0x0, %psr <<
160 WRITE_PAUSE <<
161 <<
162 jmp %l1 <<
163 rett %l2 <<
164 <<
165 floppy_overrun: <<
166 sethi %hi(pdma_vaddr), %l5 <<
167 st %l4, [%l5 + %lo(pdma_vaddr)] <<
168 sethi %hi(pdma_size), %l5 <<
169 st %l6, [%l5 + %lo(pdma_size)] <<
170 /* Prevent recursion */ <<
171 sethi %hi(doing_pdma), %l7 <<
172 st %g0, [%l7 + %lo(doing_pdma)] <<
173 <<
174 /* fall through... */ <<
175 floppy_dosoftint: <<
176 rd %wim, %l3 <<
177 SAVE_ALL <<
178 <<
179 /* Set all IRQs off. */ <<
180 or %l0, PSR_PIL, %l4 <<
181 wr %l4, 0x0, %psr <<
182 WRITE_PAUSE <<
183 wr %l4, PSR_ET, %psr <<
184 WRITE_PAUSE <<
185 <<
186 mov 11, %o0 ! flop <<
187 mov %g0, %o1 ! devi <<
188 call sparc_floppy_irq <<
189 add %sp, STACKFRAME_SZ, %o2 ! stru <<
190 48
191 RESTORE_ALL !! 49 EBX = 0x00
192 !! 50 ECX = 0x04
193 #endif /* (CONFIG_BLK_DEV_FD) */ !! 51 EDX = 0x08
194 !! 52 ESI = 0x0C
195 /* Bad trap handler */ !! 53 EDI = 0x10
196 .globl bad_trap_handler !! 54 EBP = 0x14
197 bad_trap_handler: !! 55 EAX = 0x18
198 SAVE_ALL !! 56 DS = 0x1C
199 !! 57 ES = 0x20
200 wr %l0, PSR_ET, %psr !! 58 ORIG_EAX = 0x24
201 WRITE_PAUSE !! 59 EIP = 0x28
202 !! 60 CS = 0x2C
203 add %sp, STACKFRAME_SZ, %o0 ! pt_r !! 61 EFLAGS = 0x30
204 call do_hw_interrupt !! 62 OLDESP = 0x34
205 mov %l7, %o1 ! trap !! 63 OLDSS = 0x38
>> 64
>> 65 CF_MASK = 0x00000001
>> 66 TF_MASK = 0x00000100
>> 67 IF_MASK = 0x00000200
>> 68 DF_MASK = 0x00000400
>> 69 NT_MASK = 0x00004000
>> 70 VM_MASK = 0x00020000
206 71
207 RESTORE_ALL !! 72 /*
208 !! 73 * these are offsets into the task-struct.
209 /* For now all IRQ's not registered get sent h <<
210 * see if a routine is registered to handle th <<
211 * it will say so on the console. <<
212 */ 74 */
213 !! 75 state = 0
214 .align 4 !! 76 flags = 4
215 .globl real_irq_entry, patch_handler_ !! 77 sigpending = 8
216 real_irq_entry: !! 78 addr_limit = 12
217 SAVE_ALL !! 79 exec_domain = 16
218 !! 80 need_resched = 20
219 #ifdef CONFIG_SMP !! 81 tsk_ptrace = 24
220 .globl patchme_maybe_smp_msg !! 82 processor = 52
221 !! 83
222 cmp %l7, 11 !! 84 ENOSYS = 38
223 patchme_maybe_smp_msg: !! 85
224 bgu maybe_smp4m_msg !! 86
225 nop !! 87 #define SAVE_ALL \
226 #endif !! 88 cld; \
227 !! 89 pushl %es; \
228 real_irq_continue: !! 90 pushl %ds; \
229 or %l0, PSR_PIL, %g2 !! 91 pushl %eax; \
230 wr %g2, 0x0, %psr !! 92 pushl %ebp; \
231 WRITE_PAUSE !! 93 pushl %edi; \
232 wr %g2, PSR_ET, %psr !! 94 pushl %esi; \
233 WRITE_PAUSE !! 95 pushl %edx; \
234 mov %l7, %o0 ! irq !! 96 pushl %ecx; \
235 patch_handler_irq: !! 97 pushl %ebx; \
236 call handler_irq !! 98 movl $(__KERNEL_DS),%edx; \
237 add %sp, STACKFRAME_SZ, %o1 ! pt_r !! 99 movl %edx,%ds; \
238 or %l0, PSR_PIL, %g2 ! rest !! 100 movl %edx,%es;
239 wr %g2, PSR_ET, %psr ! keep !! 101
240 WRITE_PAUSE !! 102 #define RESTORE_ALL \
241 !! 103 popl %ebx; \
242 RESTORE_ALL !! 104 popl %ecx; \
243 !! 105 popl %edx; \
244 #ifdef CONFIG_SMP !! 106 popl %esi; \
245 /* SMP per-cpu ticker interrupts are h !! 107 popl %edi; \
246 smp4m_ticker: !! 108 popl %ebp; \
247 bne real_irq_continue+4 !! 109 popl %eax; \
248 or %l0, PSR_PIL, %g2 !! 110 1: popl %ds; \
249 wr %g2, 0x0, %psr !! 111 2: popl %es; \
250 WRITE_PAUSE !! 112 addl $4,%esp; \
251 wr %g2, PSR_ET, %psr !! 113 3: iret; \
252 WRITE_PAUSE !! 114 .section .fixup,"ax"; \
253 call smp4m_percpu_timer_interrupt !! 115 4: movl $0,(%esp); \
254 add %sp, STACKFRAME_SZ, %o0 !! 116 jmp 1b; \
255 wr %l0, PSR_ET, %psr !! 117 5: movl $0,(%esp); \
256 WRITE_PAUSE !! 118 jmp 2b; \
257 RESTORE_ALL !! 119 6: pushl %ss; \
258 !! 120 popl %ds; \
259 #define GET_PROCESSOR4M_ID(reg) \ !! 121 pushl %ss; \
260 rd %tbr, %reg; \ !! 122 popl %es; \
261 srl %reg, 12, %reg; \ !! 123 pushl $11; \
262 and %reg, 3, %reg; !! 124 call do_exit; \
263 !! 125 .previous; \
264 /* Here is where we check for possible !! 126 .section __ex_table,"a";\
265 * on some level other than 15 which i !! 127 .align 4; \
266 * for cross calls. That has a separa !! 128 .long 1b,4b; \
267 * !! 129 .long 2b,5b; \
268 * IPIs are sent on Level 12, 13 and 1 !! 130 .long 3b,6b; \
269 */ !! 131 .previous
270 maybe_smp4m_msg: !! 132
271 GET_PROCESSOR4M_ID(o3) !! 133 #define GET_CURRENT(reg) \
272 sethi %hi(sun4m_irq_percpu), %l5 !! 134 movl $-8192, reg; \
273 sll %o3, 2, %o3 !! 135 andl %esp, reg
274 or %l5, %lo(sun4m_irq_percpu), %o !! 136
275 sethi %hi(0x70000000), %o2 ! Chec !! 137 ENTRY(lcall7)
276 ld [%o5 + %o3], %o1 !! 138 pushfl # We get a different stack layout with call gates,
277 ld [%o1 + 0x00], %o3 ! sun4 !! 139 pushl %eax # which has to be cleaned up later..
278 andcc %o3, %o2, %g0 !! 140 SAVE_ALL
279 be,a smp4m_ticker !! 141 movl EIP(%esp),%eax # due to call gates, this is eflags, not eip..
280 cmp %l7, 14 !! 142 movl CS(%esp),%edx # this is eip..
281 /* Soft-IRQ IPI */ !! 143 movl EFLAGS(%esp),%ecx # and this is cs..
282 st %o2, [%o1 + 0x04] ! sun4 !! 144 movl %eax,EFLAGS(%esp) #
283 WRITE_PAUSE !! 145 andl $~(NT_MASK|TF_MASK|DF_MASK), %eax
284 ld [%o1 + 0x00], %g0 ! sun4 !! 146 pushl %eax
285 WRITE_PAUSE !! 147 popfl
286 or %l0, PSR_PIL, %l4 !! 148 movl %edx,EIP(%esp) # Now we move them to their "normal" places
287 wr %l4, 0x0, %psr !! 149 movl %ecx,CS(%esp) #
288 WRITE_PAUSE !! 150 movl %esp,%ebx
289 wr %l4, PSR_ET, %psr !! 151 pushl %ebx
290 WRITE_PAUSE !! 152 andl $-8192,%ebx # GET_CURRENT
291 srl %o3, 28, %o2 ! shif !! 153 movl exec_domain(%ebx),%edx # Get the execution domain
292 maybe_smp4m_msg_check_single: !! 154 movl 4(%edx),%edx # Get the lcall7 handler for the domain
293 andcc %o2, 0x1, %g0 !! 155 pushl $0x7
294 beq,a maybe_smp4m_msg_check_mask !! 156 call *%edx
295 andcc %o2, 0x2, %g0 !! 157 addl $4, %esp
296 call smp_call_function_single_inter !! 158 popl %eax
297 nop !! 159 jmp ret_from_sys_call
298 andcc %o2, 0x2, %g0 !! 160
299 maybe_smp4m_msg_check_mask: !! 161 ENTRY(lcall27)
300 beq,a maybe_smp4m_msg_check_resched !! 162 pushfl # We get a different stack layout with call gates,
301 andcc %o2, 0x4, %g0 !! 163 pushl %eax # which has to be cleaned up later..
302 call smp_call_function_interrupt !! 164 SAVE_ALL
303 nop !! 165 movl EIP(%esp),%eax # due to call gates, this is eflags, not eip..
304 andcc %o2, 0x4, %g0 !! 166 movl CS(%esp),%edx # this is eip..
305 maybe_smp4m_msg_check_resched: !! 167 movl EFLAGS(%esp),%ecx # and this is cs..
306 /* rescheduling is done in RESTORE_ALL !! 168 movl %eax,EFLAGS(%esp) #
307 beq,a maybe_smp4m_msg_out !! 169 andl $~(NT_MASK|TF_MASK|DF_MASK), %eax
308 nop !! 170 pushl %eax
309 call smp_resched_interrupt !! 171 popfl
310 nop !! 172 movl %edx,EIP(%esp) # Now we move them to their "normal" places
311 maybe_smp4m_msg_out: !! 173 movl %ecx,CS(%esp) #
312 RESTORE_ALL !! 174 movl %esp,%ebx
313 !! 175 pushl %ebx
314 .align 4 !! 176 andl $-8192,%ebx # GET_CURRENT
315 .globl linux_trap_ipi15_sun4m !! 177 movl exec_domain(%ebx),%edx # Get the execution domain
316 linux_trap_ipi15_sun4m: !! 178 movl 4(%edx),%edx # Get the lcall7 handler for the domain
317 SAVE_ALL !! 179 pushl $0x27
318 sethi %hi(0x80000000), %o2 !! 180 call *%edx
319 GET_PROCESSOR4M_ID(o0) !! 181 addl $4, %esp
320 sethi %hi(sun4m_irq_percpu), %l5 !! 182 popl %eax
321 or %l5, %lo(sun4m_irq_percpu), %o !! 183 jmp ret_from_sys_call
322 sll %o0, 2, %o0 !! 184
323 ld [%o5 + %o0], %o5 !! 185
324 ld [%o5 + 0x00], %o3 ! sun4 !! 186 ENTRY(ret_from_fork)
325 andcc %o3, %o2, %g0 !! 187 pushl %ebx
326 be sun4m_nmi_error ! Must !! 188 call SYMBOL_NAME(schedule_tail)
327 st %o2, [%o5 + 0x04] ! sun4 !! 189 addl $4, %esp
328 WRITE_PAUSE !! 190 GET_CURRENT(%ebx)
329 ld [%o5 + 0x00], %g0 ! sun4 !! 191 testb $0x02,tsk_ptrace(%ebx) # PT_TRACESYS
330 WRITE_PAUSE !! 192 jne tracesys_exit
331 or %l0, PSR_PIL, %l4 !! 193 jmp ret_from_sys_call
332 wr %l4, 0x0, %psr !! 194
333 WRITE_PAUSE !! 195 /*
334 wr %l4, PSR_ET, %psr !! 196 * Return to user mode is not as complex as all this looks,
335 WRITE_PAUSE !! 197 * but we want the default path for a system call return to
336 call smp4m_cross_call_irq !! 198 * go as quickly as possible which is why some of this is
337 nop !! 199 * less clear than it otherwise should be.
338 b ret_trap_lockless_ipi <<
339 clr %l6 <<
340 <<
341 .globl smp4d_ticker <<
342 /* SMP per-cpu ticker interrupts are h <<
343 smp4d_ticker: <<
344 SAVE_ALL <<
345 or %l0, PSR_PIL, %g2 <<
346 sethi %hi(CC_ICLR), %o0 <<
347 sethi %hi(1 << 14), %o1 <<
348 or %o0, %lo(CC_ICLR), %o0 <<
349 stha %o1, [%o0] ASI_M_MXCC /* Cle <<
350 wr %g2, 0x0, %psr <<
351 WRITE_PAUSE <<
352 wr %g2, PSR_ET, %psr <<
353 WRITE_PAUSE <<
354 call smp4d_percpu_timer_interrupt <<
355 add %sp, STACKFRAME_SZ, %o0 <<
356 wr %l0, PSR_ET, %psr <<
357 WRITE_PAUSE <<
358 RESTORE_ALL <<
359 <<
360 .align 4 <<
361 .globl linux_trap_ipi15_sun4d <<
362 linux_trap_ipi15_sun4d: <<
363 SAVE_ALL <<
364 sethi %hi(CC_BASE), %o4 <<
365 sethi %hi(MXCC_ERR_ME|MXCC_ERR_PEW|M <<
366 or %o4, (CC_EREG - CC_BASE), %o0 <<
367 ldda [%o0] ASI_M_MXCC, %o0 <<
368 andcc %o0, %o2, %g0 <<
369 bne 1f <<
370 sethi %hi(BB_STAT2), %o2 <<
371 lduba [%o2] ASI_M_CTL, %o2 <<
372 andcc %o2, BB_STAT2_MASK, %g0 <<
373 bne 2f <<
374 or %o4, (CC_ICLR - CC_BASE), %o0 <<
375 sethi %hi(1 << 15), %o1 <<
376 stha %o1, [%o0] ASI_M_MXCC /* Cle <<
377 or %l0, PSR_PIL, %l4 <<
378 wr %l4, 0x0, %psr <<
379 WRITE_PAUSE <<
380 wr %l4, PSR_ET, %psr <<
381 WRITE_PAUSE <<
382 call smp4d_cross_call_irq <<
383 nop <<
384 b ret_trap_lockless_ipi <<
385 clr %l6 <<
386 <<
387 1: /* MXCC error */ <<
388 2: /* BB error */ <<
389 /* Disable PIL 15 */ <<
390 set CC_IMSK, %l4 <<
391 lduha [%l4] ASI_M_MXCC, %l5 <<
392 sethi %hi(1 << 15), %l7 <<
393 or %l5, %l7, %l5 <<
394 stha %l5, [%l4] ASI_M_MXCC <<
395 /* FIXME */ <<
396 1: b,a 1b <<
397 <<
398 .globl smpleon_ipi <<
399 .extern leon_ipi_interrupt <<
400 /* SMP per-cpu IPI interrupts are hand <<
401 smpleon_ipi: <<
402 SAVE_ALL <<
403 or %l0, PSR_PIL, %g2 <<
404 wr %g2, 0x0, %psr <<
405 WRITE_PAUSE <<
406 wr %g2, PSR_ET, %psr <<
407 WRITE_PAUSE <<
408 call leonsmp_ipi_interrupt <<
409 add %sp, STACKFRAME_SZ, %o1 ! pt_r <<
410 wr %l0, PSR_ET, %psr <<
411 WRITE_PAUSE <<
412 RESTORE_ALL <<
413 <<
414 .align 4 <<
415 .globl linux_trap_ipi15_leon <<
416 linux_trap_ipi15_leon: <<
417 SAVE_ALL <<
418 or %l0, PSR_PIL, %l4 <<
419 wr %l4, 0x0, %psr <<
420 WRITE_PAUSE <<
421 wr %l4, PSR_ET, %psr <<
422 WRITE_PAUSE <<
423 call leon_cross_call_irq <<
424 nop <<
425 b ret_trap_lockless_ipi <<
426 clr %l6 <<
427 <<
428 #endif /* CONFIG_SMP */ <<
429 <<
430 /* This routine handles illegal instru <<
431 * instruction attempts from user code <<
432 */ <<
433 .align 4 <<
434 .globl bad_instruction <<
435 bad_instruction: <<
436 sethi %hi(0xc1f80000), %l4 <<
437 ld [%l1], %l5 <<
438 sethi %hi(0x81d80000), %l7 <<
439 and %l5, %l4, %l5 <<
440 cmp %l5, %l7 <<
441 be 1f <<
442 SAVE_ALL <<
443 <<
444 wr %l0, PSR_ET, %psr <<
445 WRITE_PAUSE <<
446 <<
447 add %sp, STACKFRAME_SZ, %o0 <<
448 mov %l1, %o1 <<
449 mov %l2, %o2 <<
450 call do_illegal_instruction <<
451 mov %l0, %o3 <<
452 <<
453 RESTORE_ALL <<
454 <<
455 1: /* unimplemented flush - just skip */ <<
456 jmpl %l2, %g0 <<
457 rett %l2 + 4 <<
458 <<
459 .align 4 <<
460 .globl priv_instruction <<
461 priv_instruction: <<
462 SAVE_ALL <<
463 <<
464 wr %l0, PSR_ET, %psr <<
465 WRITE_PAUSE <<
466 <<
467 add %sp, STACKFRAME_SZ, %o0 <<
468 mov %l1, %o1 <<
469 mov %l2, %o2 <<
470 call do_priv_instruction <<
471 mov %l0, %o3 <<
472 <<
473 RESTORE_ALL <<
474 <<
475 /* This routine handles unaligned data <<
476 .align 4 <<
477 .globl mna_handler <<
478 mna_handler: <<
479 andcc %l0, PSR_PS, %g0 <<
480 be mna_fromuser <<
481 nop <<
482 <<
483 SAVE_ALL <<
484 <<
485 wr %l0, PSR_ET, %psr <<
486 WRITE_PAUSE <<
487 <<
488 ld [%l1], %o1 <<
489 call kernel_unaligned_trap <<
490 add %sp, STACKFRAME_SZ, %o0 <<
491 <<
492 RESTORE_ALL <<
493 <<
494 mna_fromuser: <<
495 SAVE_ALL <<
496 <<
497 wr %l0, PSR_ET, %psr <<
498 WRITE_PAUSE <<
499 <<
500 ld [%l1], %o1 <<
501 call user_unaligned_trap <<
502 add %sp, STACKFRAME_SZ, %o0 <<
503 <<
504 RESTORE_ALL <<
505 <<
506 /* This routine handles floating point <<
507 .align 4 <<
508 .globl fpd_trap_handler <<
509 fpd_trap_handler: <<
510 SAVE_ALL <<
511 <<
512 wr %l0, PSR_ET, %psr <<
513 WRITE_PAUSE <<
514 <<
515 add %sp, STACKFRAME_SZ, %o0 <<
516 mov %l1, %o1 <<
517 mov %l2, %o2 <<
518 call do_fpd_trap <<
519 mov %l0, %o3 <<
520 <<
521 RESTORE_ALL <<
522 <<
523 /* This routine handles Floating Point <<
524 .align 4 <<
525 .globl fpe_trap_handler <<
526 fpe_trap_handler: <<
527 set fpsave_magic, %l5 <<
528 cmp %l1, %l5 <<
529 be 1f <<
530 sethi %hi(fpsave), %l5 <<
531 or %l5, %lo(fpsave), %l5 <<
532 cmp %l1, %l5 <<
533 bne 2f <<
534 sethi %hi(fpsave_catch2), %l5 <<
535 or %l5, %lo(fpsave_catch2), %l5 <<
536 wr %l0, 0x0, %psr <<
537 WRITE_PAUSE <<
538 jmp %l5 <<
539 rett %l5 + 4 <<
540 1: <<
541 sethi %hi(fpsave_catch), %l5 <<
542 or %l5, %lo(fpsave_catch), %l5 <<
543 wr %l0, 0x0, %psr <<
544 WRITE_PAUSE <<
545 jmp %l5 <<
546 rett %l5 + 4 <<
547 <<
548 2: <<
549 SAVE_ALL <<
550 <<
551 wr %l0, PSR_ET, %psr <<
552 WRITE_PAUSE <<
553 <<
554 add %sp, STACKFRAME_SZ, %o0 <<
555 mov %l1, %o1 <<
556 mov %l2, %o2 <<
557 call do_fpe_trap <<
558 mov %l0, %o3 <<
559 <<
560 RESTORE_ALL <<
561 <<
562 /* This routine handles Tag Overflow E <<
563 .align 4 <<
564 .globl do_tag_overflow <<
565 do_tag_overflow: <<
566 SAVE_ALL <<
567 <<
568 wr %l0, PSR_ET, %psr <<
569 WRITE_PAUSE <<
570 <<
571 add %sp, STACKFRAME_SZ, %o0 <<
572 mov %l1, %o1 <<
573 mov %l2, %o2 <<
574 call handle_tag_overflow <<
575 mov %l0, %o3 <<
576 <<
577 RESTORE_ALL <<
578 <<
579 /* This routine handles Watchpoint Exc <<
580 .align 4 <<
581 .globl do_watchpoint <<
582 do_watchpoint: <<
583 SAVE_ALL <<
584 <<
585 wr %l0, PSR_ET, %psr <<
586 WRITE_PAUSE <<
587 <<
588 add %sp, STACKFRAME_SZ, %o0 <<
589 mov %l1, %o1 <<
590 mov %l2, %o2 <<
591 call handle_watchpoint <<
592 mov %l0, %o3 <<
593 <<
594 RESTORE_ALL <<
595 <<
596 /* This routine handles Register Acces <<
597 .align 4 <<
598 .globl do_reg_access <<
599 do_reg_access: <<
600 SAVE_ALL <<
601 <<
602 wr %l0, PSR_ET, %psr <<
603 WRITE_PAUSE <<
604 <<
605 add %sp, STACKFRAME_SZ, %o0 <<
606 mov %l1, %o1 <<
607 mov %l2, %o2 <<
608 call handle_reg_access <<
609 mov %l0, %o3 <<
610 <<
611 RESTORE_ALL <<
612 <<
613 /* This routine handles Co-Processor D <<
614 .align 4 <<
615 .globl do_cp_disabled <<
616 do_cp_disabled: <<
617 SAVE_ALL <<
618 <<
619 wr %l0, PSR_ET, %psr <<
620 WRITE_PAUSE <<
621 <<
622 add %sp, STACKFRAME_SZ, %o0 <<
623 mov %l1, %o1 <<
624 mov %l2, %o2 <<
625 call handle_cp_disabled <<
626 mov %l0, %o3 <<
627 <<
628 RESTORE_ALL <<
629 <<
630 /* This routine handles Co-Processor E <<
631 .align 4 <<
632 .globl do_cp_exception <<
633 do_cp_exception: <<
634 SAVE_ALL <<
635 <<
636 wr %l0, PSR_ET, %psr <<
637 WRITE_PAUSE <<
638 <<
639 add %sp, STACKFRAME_SZ, %o0 <<
640 mov %l1, %o1 <<
641 mov %l2, %o2 <<
642 call handle_cp_exception <<
643 mov %l0, %o3 <<
644 <<
645 RESTORE_ALL <<
646 <<
647 /* This routine handles Hardware Divid <<
648 .align 4 <<
649 .globl do_hw_divzero <<
650 do_hw_divzero: <<
651 SAVE_ALL <<
652 <<
653 wr %l0, PSR_ET, %psr <<
654 WRITE_PAUSE <<
655 <<
656 add %sp, STACKFRAME_SZ, %o0 <<
657 mov %l1, %o1 <<
658 mov %l2, %o2 <<
659 call handle_hw_divzero <<
660 mov %l0, %o3 <<
661 <<
662 RESTORE_ALL <<
663 <<
664 .align 4 <<
665 .globl do_flush_windows <<
666 do_flush_windows: <<
667 SAVE_ALL <<
668 <<
669 wr %l0, PSR_ET, %psr <<
670 WRITE_PAUSE <<
671 <<
672 andcc %l0, PSR_PS, %g0 <<
673 bne dfw_kernel <<
674 nop <<
675 <<
676 call flush_user_windows <<
677 nop <<
678 <<
679 /* Advance over the trap instruction. <<
680 ld [%sp + STACKFRAME_SZ + PT_NPC] <<
681 add %l1, 0x4, %l2 <<
682 st %l1, [%sp + STACKFRAME_SZ + PT <<
683 st %l2, [%sp + STACKFRAME_SZ + PT <<
684 <<
685 RESTORE_ALL <<
686 <<
687 .globl flush_patch_one <<
688 <<
689 /* We get these for debugging routines <<
690 dfw_kernel: <<
691 flush_patch_one: <<
692 FLUSH_ALL_KERNEL_WINDOWS <<
693 <<
694 /* Advance over the trap instruction. <<
695 ld [%sp + STACKFRAME_SZ + PT_NPC] <<
696 add %l1, 0x4, %l2 <<
697 st %l1, [%sp + STACKFRAME_SZ + PT <<
698 st %l2, [%sp + STACKFRAME_SZ + PT <<
699 <<
700 RESTORE_ALL <<
701 <<
702 /* The getcc software trap. The user <<
703 * the %psr in register %g1. <<
704 */ <<
705 <<
706 .align 4 <<
707 .globl getcc_trap_handler <<
708 getcc_trap_handler: <<
709 srl %l0, 20, %g1 ! give user <<
710 and %g1, 0xf, %g1 ! only ICC bit <<
711 jmp %l2 ! advance over <<
712 rett %l2 + 0x4 ! like this... <<
713 <<
714 /* The setcc software trap. The user <<
715 * that it would like placed in the %p <<
716 * any unintentional bits! <<
717 */ <<
718 <<
719 .align 4 <<
720 .globl setcc_trap_handler <<
721 setcc_trap_handler: <<
722 sll %g1, 0x14, %l4 <<
723 set PSR_ICC, %l5 <<
724 andn %l0, %l5, %l0 ! clear ICC bi <<
725 and %l4, %l5, %l4 ! clear non-IC <<
726 or %l4, %l0, %l4 ! or them in.. <<
727 <<
728 wr %l4, 0x0, %psr ! set new %psr <<
729 WRITE_PAUSE ! TI scumbags. <<
730 <<
731 jmp %l2 ! advance over <<
732 rett %l2 + 0x4 ! like this... <<
733 <<
734 sun4m_nmi_error: <<
735 /* NMI async memory error handling. */ <<
736 sethi %hi(0x80000000), %l4 <<
737 sethi %hi(sun4m_irq_global), %o5 <<
738 ld [%o5 + %lo(sun4m_irq_global)], <<
739 st %l4, [%l5 + 0x0c] ! sun4 <<
740 WRITE_PAUSE <<
741 ld [%l5 + 0x00], %g0 ! sun4 <<
742 WRITE_PAUSE <<
743 or %l0, PSR_PIL, %l4 <<
744 wr %l4, 0x0, %psr <<
745 WRITE_PAUSE <<
746 wr %l4, PSR_ET, %psr <<
747 WRITE_PAUSE <<
748 call sun4m_nmi <<
749 nop <<
750 st %l4, [%l5 + 0x08] ! sun4 <<
751 WRITE_PAUSE <<
752 ld [%l5 + 0x00], %g0 ! sun4 <<
753 WRITE_PAUSE <<
754 RESTORE_ALL <<
755 <<
756 #ifndef CONFIG_SMP <<
757 .align 4 <<
758 .globl linux_trap_ipi15_sun4m <<
759 linux_trap_ipi15_sun4m: <<
760 SAVE_ALL <<
761 <<
762 ba sun4m_nmi_error <<
763 nop <<
764 #endif /* CONFIG_SMP */ <<
765 <<
766 .align 4 <<
767 .globl srmmu_fault <<
768 srmmu_fault: <<
769 mov 0x400, %l5 <<
770 mov 0x300, %l4 <<
771 <<
772 LEON_PI(lda [%l5] ASI_LEON_MMUREGS, %l6) <<
773 SUN_PI_(lda [%l5] ASI_M_MMUREGS, %l6) <<
774 <<
775 LEON_PI(lda [%l4] ASI_LEON_MMUREGS, %l5) <<
776 SUN_PI_(lda [%l4] ASI_M_MMUREGS, %l5) <<
777 <<
778 andn %l6, 0xfff, %l6 <<
779 srl %l5, 6, %l5 <<
780 <<
781 and %l5, 2, %l5 <<
782 or %l5, %l6, %l6 <<
783 <<
784 or %l6, %l7, %l7 <<
785 <<
786 SAVE_ALL <<
787 <<
788 mov %l7, %o1 <<
789 mov %l7, %o2 <<
790 and %o1, 1, %o1 ! arg2 <<
791 mov %l7, %o3 <<
792 and %o2, 2, %o2 ! arg3 <<
793 andn %o3, 0xfff, %o3 ! arg4 <<
794 <<
795 wr %l0, PSR_ET, %psr <<
796 WRITE_PAUSE <<
797 <<
798 call do_sparc_fault <<
799 add %sp, STACKFRAME_SZ, %o0 ! arg1 <<
800 <<
801 RESTORE_ALL <<
802 <<
803 .align 4 <<
804 sunos_execv: <<
805 .globl sunos_execv <<
806 b sys_execve <<
807 clr %i2 <<
808 <<
809 .align 4 <<
810 .globl sys_sigstack <<
811 sys_sigstack: <<
812 mov %o7, %l5 <<
813 mov %fp, %o2 <<
814 call do_sys_sigstack <<
815 mov %l5, %o7 <<
816 <<
817 .align 4 <<
818 .globl sys_sigreturn <<
819 sys_sigreturn: <<
820 call do_sigreturn <<
821 add %sp, STACKFRAME_SZ, %o0 <<
822 <<
823 ld [%curptr + TI_FLAGS], %l5 <<
824 andcc %l5, _TIF_SYSCALL_TRACE, %g0 <<
825 be 1f <<
826 nop <<
827 <<
828 call syscall_trace <<
829 mov 1, %o1 <<
830 <<
831 1: <<
832 /* We don't want to muck with user reg <<
833 * normal syscall, just return. <<
834 */ <<
835 RESTORE_ALL <<
836 <<
837 .align 4 <<
838 .globl sys_rt_sigreturn <<
839 sys_rt_sigreturn: <<
840 call do_rt_sigreturn <<
841 add %sp, STACKFRAME_SZ, %o0 <<
842 <<
843 ld [%curptr + TI_FLAGS], %l5 <<
844 andcc %l5, _TIF_SYSCALL_TRACE, %g0 <<
845 be 1f <<
846 nop <<
847 <<
848 add %sp, STACKFRAME_SZ, %o0 <<
849 call syscall_trace <<
850 mov 1, %o1 <<
851 <<
852 1: <<
853 /* We are returning to a signal handle <<
854 RESTORE_ALL <<
855 <<
856 /* Now that we have a real sys_clone, <<
857 * implemented in terms of it. Our _r <<
858 * of SunOS vfork() will use sys_vfork <<
859 * <<
860 * XXX These three should be consolida <<
861 * XXX code just like on sparc64... -D <<
862 */ <<
863 .align 4 <<
864 .globl sys_fork, flush_patch_two <<
865 sys_fork: <<
866 mov %o7, %l5 <<
867 flush_patch_two: <<
868 FLUSH_ALL_KERNEL_WINDOWS; <<
869 ld [%curptr + TI_TASK], %o4 <<
870 rd %psr, %g4 <<
871 WRITE_PAUSE <<
872 rd %wim, %g5 <<
873 WRITE_PAUSE <<
874 std %g4, [%o4 + AOFF_task_thread + <<
875 add %sp, STACKFRAME_SZ, %o0 <<
876 call sparc_fork <<
877 mov %l5, %o7 <<
878 <<
879 /* Whee, kernel threads! */ <<
880 .globl sys_clone, flush_patch_three <<
881 sys_clone: <<
882 mov %o7, %l5 <<
883 flush_patch_three: <<
884 FLUSH_ALL_KERNEL_WINDOWS; <<
885 ld [%curptr + TI_TASK], %o4 <<
886 rd %psr, %g4 <<
887 WRITE_PAUSE <<
888 rd %wim, %g5 <<
889 WRITE_PAUSE <<
890 std %g4, [%o4 + AOFF_task_thread + <<
891 add %sp, STACKFRAME_SZ, %o0 <<
892 call sparc_clone <<
893 mov %l5, %o7 <<
894 <<
895 /* Whee, real vfork! */ <<
896 .globl sys_vfork, flush_patch_four <<
897 sys_vfork: <<
898 flush_patch_four: <<
899 FLUSH_ALL_KERNEL_WINDOWS; <<
900 ld [%curptr + TI_TASK], %o4 <<
901 rd %psr, %g4 <<
902 WRITE_PAUSE <<
903 rd %wim, %g5 <<
904 WRITE_PAUSE <<
905 std %g4, [%o4 + AOFF_task_thread + <<
906 sethi %hi(sparc_vfork), %l1 <<
907 jmpl %l1 + %lo(sparc_vfork), %g0 <<
908 add %sp, STACKFRAME_SZ, %o0 <<
909 <<
910 .align 4 <<
911 linux_sparc_ni_syscall: <<
912 sethi %hi(sys_ni_syscall), %l7 <<
913 b do_syscall <<
914 or %l7, %lo(sys_ni_syscall), %l7 <<
915 <<
916 linux_syscall_trace: <<
917 add %sp, STACKFRAME_SZ, %o0 <<
918 call syscall_trace <<
919 mov 0, %o1 <<
920 cmp %o0, 0 <<
921 bne 3f <<
922 mov -ENOSYS, %o0 <<
923 <<
924 /* Syscall tracing can modify the regi <<
925 ld [%sp + STACKFRAME_SZ + PT_G1], <<
926 sethi %hi(sys_call_table), %l7 <<
927 ld [%sp + STACKFRAME_SZ + PT_I0], <<
928 or %l7, %lo(sys_call_table), %l7 <<
929 ld [%sp + STACKFRAME_SZ + PT_I1], <<
930 ld [%sp + STACKFRAME_SZ + PT_I2], <<
931 ld [%sp + STACKFRAME_SZ + PT_I3], <<
932 ld [%sp + STACKFRAME_SZ + PT_I4], <<
933 ld [%sp + STACKFRAME_SZ + PT_I5], <<
934 cmp %g1, NR_syscalls <<
935 bgeu 3f <<
936 mov -ENOSYS, %o0 <<
937 <<
938 sll %g1, 2, %l4 <<
939 mov %i0, %o0 <<
940 ld [%l7 + %l4], %l7 <<
941 mov %i1, %o1 <<
942 mov %i2, %o2 <<
943 mov %i3, %o3 <<
944 b 2f <<
945 mov %i4, %o4 <<
946 <<
947 .globl ret_from_fork <<
948 ret_from_fork: <<
949 call schedule_tail <<
950 ld [%g3 + TI_TASK], %o0 <<
951 b ret_sys_call <<
952 ld [%sp + STACKFRAME_SZ + PT_I0], <<
953 <<
954 .globl ret_from_kernel_thread <<
955 ret_from_kernel_thread: <<
956 call schedule_tail <<
957 ld [%g3 + TI_TASK], %o0 <<
958 ld [%sp + STACKFRAME_SZ + PT_G1], <<
959 call %l0 <<
960 ld [%sp + STACKFRAME_SZ + PT_G2], <<
961 rd %psr, %l1 <<
962 ld [%sp + STACKFRAME_SZ + PT_PSR] <<
963 andn %l0, PSR_CWP, %l0 <<
964 nop <<
965 and %l1, PSR_CWP, %l1 <<
966 or %l0, %l1, %l0 <<
967 st %l0, [%sp + STACKFRAME_SZ + PT <<
968 b ret_sys_call <<
969 mov 0, %o0 <<
970 <<
971 /* Linux native system calls enter her <<
972 .align 4 <<
973 .globl linux_sparc_syscall <<
974 linux_sparc_syscall: <<
975 sethi %hi(PSR_SYSCALL), %l4 <<
976 or %l0, %l4, %l0 <<
977 /* Direct access to user regs, must fa <<
978 cmp %g1, NR_syscalls <<
979 bgeu linux_sparc_ni_syscall <<
980 sll %g1, 2, %l4 <<
981 ld [%l7 + %l4], %l7 <<
982 <<
983 do_syscall: <<
984 SAVE_ALL_HEAD <<
985 rd %wim, %l3 <<
986 <<
987 wr %l0, PSR_ET, %psr <<
988 mov %i0, %o0 <<
989 mov %i1, %o1 <<
990 mov %i2, %o2 <<
991 <<
992 ld [%curptr + TI_FLAGS], %l5 <<
993 mov %i3, %o3 <<
994 andcc %l5, _TIF_SYSCALL_TRACE, %g0 <<
995 mov %i4, %o4 <<
996 bne linux_syscall_trace <<
997 mov %i0, %l6 <<
998 2: <<
999 call %l7 <<
1000 mov %i5, %o5 <<
1001 <<
1002 3: <<
1003 st %o0, [%sp + STACKFRAME_SZ + P <<
1004 <<
1005 ret_sys_call: <<
1006 ld [%curptr + TI_FLAGS], %l5 <<
1007 cmp %o0, -ERESTART_RESTARTBLOCK <<
1008 ld [%sp + STACKFRAME_SZ + PT_PSR <<
1009 set PSR_C, %g2 <<
1010 bgeu 1f <<
1011 andcc %l5, _TIF_SYSCALL_TRACE, %g0 <<
1012 <<
1013 /* System call success, clear Carry c <<
1014 andn %g3, %g2, %g3 <<
1015 st %g3, [%sp + STACKFRAME_SZ + P <<
1016 bne linux_syscall_trace2 <<
1017 ld [%sp + STACKFRAME_SZ + PT_NPC <<
1018 add %l1, 0x4, %l2 <<
1019 st %l1, [%sp + STACKFRAME_SZ + P <<
1020 b ret_trap_entry <<
1021 st %l2, [%sp + STACKFRAME_SZ + P <<
1022 1: <<
1023 /* System call failure, set Carry con <<
1024 * Also, get abs(errno) to return to <<
1025 */ <<
1026 sub %g0, %o0, %o0 <<
1027 or %g3, %g2, %g3 <<
1028 st %o0, [%sp + STACKFRAME_SZ + P <<
1029 st %g3, [%sp + STACKFRAME_SZ + P <<
1030 bne linux_syscall_trace2 <<
1031 ld [%sp + STACKFRAME_SZ + PT_NPC <<
1032 add %l1, 0x4, %l2 <<
1033 st %l1, [%sp + STACKFRAME_SZ + P <<
1034 b ret_trap_entry <<
1035 st %l2, [%sp + STACKFRAME_SZ + P <<
1036 <<
1037 linux_syscall_trace2: <<
1038 add %sp, STACKFRAME_SZ, %o0 <<
1039 mov 1, %o1 <<
1040 call syscall_trace <<
1041 add %l1, 0x4, %l2 <<
1042 st %l1, [%sp + STACKFRAME_SZ + P <<
1043 b ret_trap_entry <<
1044 st %l2, [%sp + STACKFRAME_SZ + P <<
1045 <<
1046 <<
1047 /* Saving and restoring the FPU state is best <<
1048 * <<
1049 * void fpsave(unsigned long *fpregs, unsigne <<
1050 * void *fpqueue, unsigned long * <<
1051 */ 200 */
1052 201
1053 .globl fpsave !! 202 ENTRY(system_call)
1054 fpsave: !! 203 pushl %eax # save orig_eax
1055 st %fsr, [%o1] ! this can tr <<
1056 ld [%o1], %g1 <<
1057 set 0x2000, %g4 <<
1058 andcc %g1, %g4, %g0 <<
1059 be 2f <<
1060 mov 0, %g2 <<
1061 <<
1062 /* We have an fpqueue to save. */ <<
1063 1: <<
1064 std %fq, [%o2] <<
1065 fpsave_magic: <<
1066 st %fsr, [%o1] <<
1067 ld [%o1], %g3 <<
1068 andcc %g3, %g4, %g0 <<
1069 add %g2, 1, %g2 <<
1070 bne 1b <<
1071 add %o2, 8, %o2 <<
1072 <<
1073 2: <<
1074 st %g2, [%o3] <<
1075 <<
1076 std %f0, [%o0 + 0x00] <<
1077 std %f2, [%o0 + 0x08] <<
1078 std %f4, [%o0 + 0x10] <<
1079 std %f6, [%o0 + 0x18] <<
1080 std %f8, [%o0 + 0x20] <<
1081 std %f10, [%o0 + 0x28] <<
1082 std %f12, [%o0 + 0x30] <<
1083 std %f14, [%o0 + 0x38] <<
1084 std %f16, [%o0 + 0x40] <<
1085 std %f18, [%o0 + 0x48] <<
1086 std %f20, [%o0 + 0x50] <<
1087 std %f22, [%o0 + 0x58] <<
1088 std %f24, [%o0 + 0x60] <<
1089 std %f26, [%o0 + 0x68] <<
1090 std %f28, [%o0 + 0x70] <<
1091 retl <<
1092 std %f30, [%o0 + 0x78] <<
1093 <<
1094 /* Thanks for Theo Deraadt and the au <<
1095 * code for pointing out this possibl <<
1096 * above we could trap on the fsr sto <<
1097 * code has to know how to deal with <<
1098 */ <<
1099 fpsave_catch: <<
1100 b fpsave_magic + 4 <<
1101 st %fsr, [%o1] <<
1102 <<
1103 fpsave_catch2: <<
1104 b fpsave + 4 <<
1105 st %fsr, [%o1] <<
1106 <<
1107 /* void fpload(unsigned long *fpregs, <<
1108 <<
1109 .globl fpload <<
1110 fpload: <<
1111 ldd [%o0 + 0x00], %f0 <<
1112 ldd [%o0 + 0x08], %f2 <<
1113 ldd [%o0 + 0x10], %f4 <<
1114 ldd [%o0 + 0x18], %f6 <<
1115 ldd [%o0 + 0x20], %f8 <<
1116 ldd [%o0 + 0x28], %f10 <<
1117 ldd [%o0 + 0x30], %f12 <<
1118 ldd [%o0 + 0x38], %f14 <<
1119 ldd [%o0 + 0x40], %f16 <<
1120 ldd [%o0 + 0x48], %f18 <<
1121 ldd [%o0 + 0x50], %f20 <<
1122 ldd [%o0 + 0x58], %f22 <<
1123 ldd [%o0 + 0x60], %f24 <<
1124 ldd [%o0 + 0x68], %f26 <<
1125 ldd [%o0 + 0x70], %f28 <<
1126 ldd [%o0 + 0x78], %f30 <<
1127 ld [%o1], %fsr <<
1128 retl <<
1129 nop <<
1130 <<
1131 /* __ndelay and __udelay take two arg <<
1132 * 0 - nsecs or usecs to delay <<
1133 * 1 - per_cpu udelay_val (loops per <<
1134 * <<
1135 * Note that ndelay gives HZ times hi <<
1136 * limit. udelay can handle up to 1s <<
1137 */ <<
1138 .globl __ndelay <<
1139 __ndelay: <<
1140 save %sp, -STACKFRAME_SZ, %sp <<
1141 mov %i0, %o0 ! rou <<
1142 mov 0x1ae, %o1 ! 2** <<
1143 umul %o0, %o1, %o0 <<
1144 rd %y, %o1 <<
1145 mov %i1, %o1 ! ude <<
1146 umul %o0, %o1, %o0 <<
1147 rd %y, %o1 <<
1148 ba delay_continue <<
1149 mov %o1, %o0 ! >>3 <<
1150 <<
1151 .globl __udelay <<
1152 __udelay: <<
1153 save %sp, -STACKFRAME_SZ, %sp <<
1154 mov %i0, %o0 <<
1155 sethi %hi(0x10c7), %o1 ! rou <<
1156 or %o1, %lo(0x10c7), %o1 ! 2** <<
1157 umul %o0, %o1, %o0 <<
1158 rd %y, %o1 <<
1159 mov %i1, %o1 ! ude <<
1160 umul %o0, %o1, %o0 <<
1161 rd %y, %o1 <<
1162 sethi %hi(0x028f4b62), %l0 ! Add <<
1163 or %g0, %lo(0x028f4b62), %l0 <<
1164 addcc %o0, %l0, %o0 ! 2** <<
1165 bcs,a 3f <<
1166 add %o1, 0x01, %o1 <<
1167 3: <<
1168 mov HZ, %o0 ! >>3 <<
1169 umul %o0, %o1, %o0 <<
1170 rd %y, %o1 <<
1171 <<
1172 delay_continue: <<
1173 cmp %o0, 0x0 <<
1174 1: <<
1175 bne 1b <<
1176 subcc %o0, 1, %o0 <<
1177 <<
1178 ret <<
1179 restore <<
1180 EXPORT_SYMBOL(__udelay) <<
1181 EXPORT_SYMBOL(__ndelay) <<
1182 <<
1183 /* Handle a software breakpoint */ <<
1184 /* We have to inform parent that chil <<
1185 .align 4 <<
1186 .globl breakpoint_trap <<
1187 breakpoint_trap: <<
1188 rd %wim,%l3 <<
1189 SAVE_ALL <<
1190 wr %l0, PSR_ET, %psr <<
1191 WRITE_PAUSE <<
1192 <<
1193 st %i0, [%sp + STACKFRAME_SZ + P <<
1194 call sparc_breakpoint <<
1195 add %sp, STACKFRAME_SZ, %o0 <<
1196 <<
1197 RESTORE_ALL <<
1198 <<
1199 #ifdef CONFIG_KGDB <<
1200 ENTRY(kgdb_trap_low) <<
1201 rd %wim,%l3 <<
1202 SAVE_ALL 204 SAVE_ALL
1203 wr %l0, PSR_ET, %psr !! 205 GET_CURRENT(%ebx)
1204 WRITE_PAUSE !! 206 testb $0x02,tsk_ptrace(%ebx) # PT_TRACESYS
1205 !! 207 jne tracesys
1206 mov %l7, %o0 ! tra !! 208 cmpl $(NR_syscalls),%eax
1207 call kgdb_trap !! 209 jae badsys
1208 add %sp, STACKFRAME_SZ, %o1 ! str !! 210 call *SYMBOL_NAME(sys_call_table)(,%eax,4)
1209 !! 211 movl %eax,EAX(%esp) # save the return value
1210 RESTORE_ALL !! 212 ENTRY(ret_from_sys_call)
1211 ENDPROC(kgdb_trap_low) !! 213 cli # need_resched and signals atomic test
1212 #endif !! 214 cmpl $0,need_resched(%ebx)
1213 !! 215 jne reschedule
1214 .align 4 !! 216 cmpl $0,sigpending(%ebx)
1215 .globl flush_patch_exception !! 217 jne signal_return
1216 flush_patch_exception: !! 218 restore_all:
1217 FLUSH_ALL_KERNEL_WINDOWS; !! 219 RESTORE_ALL
1218 ldd [%o0], %o6 !! 220
1219 jmpl %o7 + 0xc, %g0 !! 221 ALIGN
1220 mov 1, %g1 !! 222 signal_return:
1221 !! 223 sti # we can get here from an interrupt handler
1222 .align 4 !! 224 testl $(VM_MASK),EFLAGS(%esp)
1223 .globl kill_user_windows, kuw_patch1 !! 225 movl %esp,%eax
1224 .globl kuw_patch1 !! 226 jne v86_signal_return
1225 kuw_patch1_7win: sll %o3, 6, %o3 !! 227 xorl %edx,%edx
1226 !! 228 call SYMBOL_NAME(do_signal)
1227 /* No matter how much overhead this r !! 229 jmp restore_all
1228 * case scenario, it is several times !! 230
1229 * traps with the old method of just !! 231 ALIGN
1230 */ !! 232 v86_signal_return:
1231 kill_user_windows: !! 233 call SYMBOL_NAME(save_v86_state)
1232 ld [%g6 + TI_UWINMASK], %o0 !! 234 movl %eax,%esp
1233 orcc %g0, %o0, %g0 !! 235 xorl %edx,%edx
1234 be 3f !! 236 call SYMBOL_NAME(do_signal)
1235 rd %psr, %o5 !! 237 jmp restore_all
1236 or %o5, PSR_PIL, %o4 !! 238
1237 wr %o4, 0x0, %psr !! 239 ALIGN
1238 WRITE_PAUSE !! 240 tracesys:
1239 1: !! 241 movl $-ENOSYS,EAX(%esp)
1240 ld [%g6 + TI_UWINMASK], %o0 !! 242 call SYMBOL_NAME(syscall_trace)
1241 orcc %g0, %o0, %g0 !! 243 movl ORIG_EAX(%esp),%eax
1242 be 4f !! 244 cmpl $(NR_syscalls),%eax
1243 rd %wim, %o3 !! 245 jae tracesys_exit
1244 srl %o3, 1, %o4 !! 246 call *SYMBOL_NAME(sys_call_table)(,%eax,4)
1245 kuw_patch1: !! 247 movl %eax,EAX(%esp) # save the return value
1246 sll %o3, 7, %o3 !! 248 tracesys_exit:
1247 or %o4, %o3, %o3 !! 249 call SYMBOL_NAME(syscall_trace)
1248 andncc %o0, %o3, %o0 !! 250 jmp ret_from_sys_call
1249 bne kuw_patch1 !! 251 badsys:
1250 srl %o3, 1, %o4 !! 252 movl $-ENOSYS,EAX(%esp)
1251 wr %o3, 0x0, %wim !! 253 jmp ret_from_sys_call
1252 st %g0, [%g6 + TI_UWINMASK] !! 254
1253 4: !! 255 ALIGN
1254 wr %o5, 0x0, %psr !! 256 ENTRY(ret_from_intr)
1255 WRITE_PAUSE !! 257 GET_CURRENT(%ebx)
1256 3: !! 258 ret_from_exception:
1257 retl !! 259 movl EFLAGS(%esp),%eax # mix EFLAGS and CS
1258 st %g0, [%g6 + TI_W_SAVED] !! 260 movb CS(%esp),%al
1259 !! 261 testl $(VM_MASK | 3),%eax # return to VM86 mode or non-supervisor?
1260 .align 4 !! 262 jne ret_from_sys_call
1261 .globl restore_current !! 263 jmp restore_all
1262 restore_current: !! 264
1263 LOAD_CURRENT(g6, o0) !! 265 ALIGN
1264 retl !! 266 reschedule:
1265 nop !! 267 call SYMBOL_NAME(schedule) # test
1266 !! 268 jmp ret_from_sys_call
1267 #ifdef CONFIG_PCIC_PCI !! 269
1268 #include <asm/pcic.h> !! 270 ENTRY(divide_error)
1269 !! 271 pushl $0 # no error code
1270 .align 4 !! 272 pushl $ SYMBOL_NAME(do_divide_error)
1271 .globl linux_trap_ipi15_pcic !! 273 ALIGN
1272 linux_trap_ipi15_pcic: !! 274 error_code:
1273 rd %wim, %l3 !! 275 pushl %ds
1274 SAVE_ALL !! 276 pushl %eax
1275 !! 277 xorl %eax,%eax
1276 /* !! 278 pushl %ebp
1277 * First deactivate NMI !! 279 pushl %edi
1278 * or we cannot drop ET, cannot get w !! 280 pushl %esi
1279 * The busy loop is necessary because !! 281 pushl %edx
1280 * sometimes does not go away quickly !! 282 decl %eax # eax = -1
1281 */ !! 283 pushl %ecx
1282 sethi %hi(pcic_regs), %o1 !! 284 pushl %ebx
1283 ld [%o1 + %lo(pcic_regs)], %o2 !! 285 cld
1284 !! 286 movl %es,%ecx
1285 ! Get pending status for printouts la !! 287 movl ORIG_EAX(%esp), %esi # get the error code
1286 ld [%o2 + PCI_SYS_INT_PENDING], !! 288 movl ES(%esp), %edi # get the function address
1287 !! 289 movl %eax, ORIG_EAX(%esp)
1288 mov PCI_SYS_INT_PENDING_CLEAR_ALL !! 290 movl %ecx, ES(%esp)
1289 stb %o1, [%o2 + PCI_SYS_INT_PENDI !! 291 movl %esp,%edx
1290 1: !! 292 pushl %esi # push the error code
1291 ld [%o2 + PCI_SYS_INT_PENDING], !! 293 pushl %edx # push the pt_regs pointer
1292 andcc %o1, ((PCI_SYS_INT_PENDING_PI !! 294 movl $(__KERNEL_DS),%edx
1293 bne 1b !! 295 movl %edx,%ds
1294 nop !! 296 movl %edx,%es
1295 !! 297 GET_CURRENT(%ebx)
1296 or %l0, PSR_PIL, %l4 !! 298 call *%edi
1297 wr %l4, 0x0, %psr !! 299 addl $8,%esp
1298 WRITE_PAUSE !! 300 jmp ret_from_exception
1299 wr %l4, PSR_ET, %psr !! 301
1300 WRITE_PAUSE !! 302 ENTRY(coprocessor_error)
1301 !! 303 pushl $0
1302 call pcic_nmi !! 304 pushl $ SYMBOL_NAME(do_coprocessor_error)
1303 add %sp, STACKFRAME_SZ, %o1 ! str !! 305 jmp error_code
1304 RESTORE_ALL !! 306
1305 !! 307 ENTRY(simd_coprocessor_error)
1306 .globl pcic_nmi_trap_patch !! 308 pushl $0
1307 pcic_nmi_trap_patch: !! 309 pushl $ SYMBOL_NAME(do_simd_coprocessor_error)
1308 sethi %hi(linux_trap_ipi15_pcic), % !! 310 jmp error_code
1309 jmpl %l3 + %lo(linux_trap_ipi15_pc !! 311
1310 rd %psr, %l0 !! 312 ENTRY(device_not_available)
1311 .word 0 !! 313 pushl $-1 # mark this as an int
1312 !! 314 SAVE_ALL
1313 #endif /* CONFIG_PCIC_PCI */ !! 315 GET_CURRENT(%ebx)
1314 !! 316 movl %cr0,%eax
1315 .globl flushw_all !! 317 testl $0x4,%eax # EM (math emulation bit)
1316 flushw_all: !! 318 jne device_not_available_emulate
1317 save %sp, -0x40, %sp !! 319 call SYMBOL_NAME(math_state_restore)
1318 save %sp, -0x40, %sp !! 320 jmp ret_from_exception
1319 save %sp, -0x40, %sp !! 321 device_not_available_emulate:
1320 save %sp, -0x40, %sp !! 322 pushl $0 # temporary storage for ORIG_EIP
1321 save %sp, -0x40, %sp !! 323 call SYMBOL_NAME(math_emulate)
1322 save %sp, -0x40, %sp !! 324 addl $4,%esp
1323 save %sp, -0x40, %sp !! 325 jmp ret_from_exception
1324 restore !! 326
1325 restore !! 327 ENTRY(debug)
1326 restore !! 328 pushl $0
1327 restore !! 329 pushl $ SYMBOL_NAME(do_debug)
1328 restore !! 330 jmp error_code
1329 restore !! 331
1330 ret !! 332 ENTRY(nmi)
1331 restore !! 333 pushl %eax
1332 !! 334 SAVE_ALL
1333 #ifdef CONFIG_SMP !! 335 movl %esp,%edx
1334 ENTRY(hard_smp_processor_id) !! 336 pushl $0
1335 661: rd %tbr, %g1 !! 337 pushl %edx
1336 srl %g1, 12, %o0 !! 338 call SYMBOL_NAME(do_nmi)
1337 and %o0, 3, %o0 !! 339 addl $8,%esp
1338 .section .cpuid_patch, "ax" !! 340 RESTORE_ALL
1339 /* Instruction location. */ !! 341
1340 .word 661b !! 342 ENTRY(int3)
1341 /* SUN4D implementation. */ !! 343 pushl $0
1342 lda [%g0] ASI_M_VIKING_TM !! 344 pushl $ SYMBOL_NAME(do_int3)
1343 nop !! 345 jmp error_code
1344 nop !! 346
1345 /* LEON implementation. */ !! 347 ENTRY(overflow)
1346 rd %asr17, %o0 !! 348 pushl $0
1347 srl %o0, 0x1c, %o0 !! 349 pushl $ SYMBOL_NAME(do_overflow)
1348 nop !! 350 jmp error_code
1349 .previous !! 351
1350 retl !! 352 ENTRY(bounds)
1351 nop !! 353 pushl $0
1352 ENDPROC(hard_smp_processor_id) !! 354 pushl $ SYMBOL_NAME(do_bounds)
1353 #endif !! 355 jmp error_code
1354 !! 356
1355 /* End of entry.S */ !! 357 ENTRY(invalid_op)
>> 358 pushl $0
>> 359 pushl $ SYMBOL_NAME(do_invalid_op)
>> 360 jmp error_code
>> 361
>> 362 ENTRY(coprocessor_segment_overrun)
>> 363 pushl $0
>> 364 pushl $ SYMBOL_NAME(do_coprocessor_segment_overrun)
>> 365 jmp error_code
>> 366
>> 367 ENTRY(double_fault)
>> 368 pushl $ SYMBOL_NAME(do_double_fault)
>> 369 jmp error_code
>> 370
>> 371 ENTRY(invalid_TSS)
>> 372 pushl $ SYMBOL_NAME(do_invalid_TSS)
>> 373 jmp error_code
>> 374
>> 375 ENTRY(segment_not_present)
>> 376 pushl $ SYMBOL_NAME(do_segment_not_present)
>> 377 jmp error_code
>> 378
>> 379 ENTRY(stack_segment)
>> 380 pushl $ SYMBOL_NAME(do_stack_segment)
>> 381 jmp error_code
>> 382
>> 383 ENTRY(general_protection)
>> 384 pushl $ SYMBOL_NAME(do_general_protection)
>> 385 jmp error_code
>> 386
>> 387 ENTRY(alignment_check)
>> 388 pushl $ SYMBOL_NAME(do_alignment_check)
>> 389 jmp error_code
>> 390
>> 391 ENTRY(page_fault)
>> 392 pushl $ SYMBOL_NAME(do_page_fault)
>> 393 jmp error_code
>> 394
>> 395 ENTRY(machine_check)
>> 396 pushl $0
>> 397 pushl $ SYMBOL_NAME(do_machine_check)
>> 398 jmp error_code
>> 399
>> 400 ENTRY(spurious_interrupt_bug)
>> 401 pushl $0
>> 402 pushl $ SYMBOL_NAME(do_spurious_interrupt_bug)
>> 403 jmp error_code
>> 404
>> 405 .data
>> 406 ENTRY(sys_call_table)
>> 407 .long SYMBOL_NAME(sys_ni_syscall) /* 0 - old "setup()" system call*/
>> 408 .long SYMBOL_NAME(sys_exit)
>> 409 .long SYMBOL_NAME(sys_fork)
>> 410 .long SYMBOL_NAME(sys_read)
>> 411 .long SYMBOL_NAME(sys_write)
>> 412 .long SYMBOL_NAME(sys_open) /* 5 */
>> 413 .long SYMBOL_NAME(sys_close)
>> 414 .long SYMBOL_NAME(sys_waitpid)
>> 415 .long SYMBOL_NAME(sys_creat)
>> 416 .long SYMBOL_NAME(sys_link)
>> 417 .long SYMBOL_NAME(sys_unlink) /* 10 */
>> 418 .long SYMBOL_NAME(sys_execve)
>> 419 .long SYMBOL_NAME(sys_chdir)
>> 420 .long SYMBOL_NAME(sys_time)
>> 421 .long SYMBOL_NAME(sys_mknod)
>> 422 .long SYMBOL_NAME(sys_chmod) /* 15 */
>> 423 .long SYMBOL_NAME(sys_lchown16)
>> 424 .long SYMBOL_NAME(sys_ni_syscall) /* old break syscall holder */
>> 425 .long SYMBOL_NAME(sys_stat)
>> 426 .long SYMBOL_NAME(sys_lseek)
>> 427 .long SYMBOL_NAME(sys_getpid) /* 20 */
>> 428 .long SYMBOL_NAME(sys_mount)
>> 429 .long SYMBOL_NAME(sys_oldumount)
>> 430 .long SYMBOL_NAME(sys_setuid16)
>> 431 .long SYMBOL_NAME(sys_getuid16)
>> 432 .long SYMBOL_NAME(sys_stime) /* 25 */
>> 433 .long SYMBOL_NAME(sys_ptrace)
>> 434 .long SYMBOL_NAME(sys_alarm)
>> 435 .long SYMBOL_NAME(sys_fstat)
>> 436 .long SYMBOL_NAME(sys_pause)
>> 437 .long SYMBOL_NAME(sys_utime) /* 30 */
>> 438 .long SYMBOL_NAME(sys_ni_syscall) /* old stty syscall holder */
>> 439 .long SYMBOL_NAME(sys_ni_syscall) /* old gtty syscall holder */
>> 440 .long SYMBOL_NAME(sys_access)
>> 441 .long SYMBOL_NAME(sys_nice)
>> 442 .long SYMBOL_NAME(sys_ni_syscall) /* 35 */ /* old ftime syscall holder */
>> 443 .long SYMBOL_NAME(sys_sync)
>> 444 .long SYMBOL_NAME(sys_kill)
>> 445 .long SYMBOL_NAME(sys_rename)
>> 446 .long SYMBOL_NAME(sys_mkdir)
>> 447 .long SYMBOL_NAME(sys_rmdir) /* 40 */
>> 448 .long SYMBOL_NAME(sys_dup)
>> 449 .long SYMBOL_NAME(sys_pipe)
>> 450 .long SYMBOL_NAME(sys_times)
>> 451 .long SYMBOL_NAME(sys_ni_syscall) /* old prof syscall holder */
>> 452 .long SYMBOL_NAME(sys_brk) /* 45 */
>> 453 .long SYMBOL_NAME(sys_setgid16)
>> 454 .long SYMBOL_NAME(sys_getgid16)
>> 455 .long SYMBOL_NAME(sys_signal)
>> 456 .long SYMBOL_NAME(sys_geteuid16)
>> 457 .long SYMBOL_NAME(sys_getegid16) /* 50 */
>> 458 .long SYMBOL_NAME(sys_acct)
>> 459 .long SYMBOL_NAME(sys_umount) /* recycled never used phys() */
>> 460 .long SYMBOL_NAME(sys_ni_syscall) /* old lock syscall holder */
>> 461 .long SYMBOL_NAME(sys_ioctl)
>> 462 .long SYMBOL_NAME(sys_fcntl) /* 55 */
>> 463 .long SYMBOL_NAME(sys_ni_syscall) /* old mpx syscall holder */
>> 464 .long SYMBOL_NAME(sys_setpgid)
>> 465 .long SYMBOL_NAME(sys_ni_syscall) /* old ulimit syscall holder */
>> 466 .long SYMBOL_NAME(sys_olduname)
>> 467 .long SYMBOL_NAME(sys_umask) /* 60 */
>> 468 .long SYMBOL_NAME(sys_chroot)
>> 469 .long SYMBOL_NAME(sys_ustat)
>> 470 .long SYMBOL_NAME(sys_dup2)
>> 471 .long SYMBOL_NAME(sys_getppid)
>> 472 .long SYMBOL_NAME(sys_getpgrp) /* 65 */
>> 473 .long SYMBOL_NAME(sys_setsid)
>> 474 .long SYMBOL_NAME(sys_sigaction)
>> 475 .long SYMBOL_NAME(sys_sgetmask)
>> 476 .long SYMBOL_NAME(sys_ssetmask)
>> 477 .long SYMBOL_NAME(sys_setreuid16) /* 70 */
>> 478 .long SYMBOL_NAME(sys_setregid16)
>> 479 .long SYMBOL_NAME(sys_sigsuspend)
>> 480 .long SYMBOL_NAME(sys_sigpending)
>> 481 .long SYMBOL_NAME(sys_sethostname)
>> 482 .long SYMBOL_NAME(sys_setrlimit) /* 75 */
>> 483 .long SYMBOL_NAME(sys_old_getrlimit)
>> 484 .long SYMBOL_NAME(sys_getrusage)
>> 485 .long SYMBOL_NAME(sys_gettimeofday)
>> 486 .long SYMBOL_NAME(sys_settimeofday)
>> 487 .long SYMBOL_NAME(sys_getgroups16) /* 80 */
>> 488 .long SYMBOL_NAME(sys_setgroups16)
>> 489 .long SYMBOL_NAME(old_select)
>> 490 .long SYMBOL_NAME(sys_symlink)
>> 491 .long SYMBOL_NAME(sys_lstat)
>> 492 .long SYMBOL_NAME(sys_readlink) /* 85 */
>> 493 .long SYMBOL_NAME(sys_uselib)
>> 494 .long SYMBOL_NAME(sys_swapon)
>> 495 .long SYMBOL_NAME(sys_reboot)
>> 496 .long SYMBOL_NAME(old_readdir)
>> 497 .long SYMBOL_NAME(old_mmap) /* 90 */
>> 498 .long SYMBOL_NAME(sys_munmap)
>> 499 .long SYMBOL_NAME(sys_truncate)
>> 500 .long SYMBOL_NAME(sys_ftruncate)
>> 501 .long SYMBOL_NAME(sys_fchmod)
>> 502 .long SYMBOL_NAME(sys_fchown16) /* 95 */
>> 503 .long SYMBOL_NAME(sys_getpriority)
>> 504 .long SYMBOL_NAME(sys_setpriority)
>> 505 .long SYMBOL_NAME(sys_ni_syscall) /* old profil syscall holder */
>> 506 .long SYMBOL_NAME(sys_statfs)
>> 507 .long SYMBOL_NAME(sys_fstatfs) /* 100 */
>> 508 .long SYMBOL_NAME(sys_ioperm)
>> 509 .long SYMBOL_NAME(sys_socketcall)
>> 510 .long SYMBOL_NAME(sys_syslog)
>> 511 .long SYMBOL_NAME(sys_setitimer)
>> 512 .long SYMBOL_NAME(sys_getitimer) /* 105 */
>> 513 .long SYMBOL_NAME(sys_newstat)
>> 514 .long SYMBOL_NAME(sys_newlstat)
>> 515 .long SYMBOL_NAME(sys_newfstat)
>> 516 .long SYMBOL_NAME(sys_uname)
>> 517 .long SYMBOL_NAME(sys_iopl) /* 110 */
>> 518 .long SYMBOL_NAME(sys_vhangup)
>> 519 .long SYMBOL_NAME(sys_ni_syscall) /* old "idle" system call */
>> 520 .long SYMBOL_NAME(sys_vm86old)
>> 521 .long SYMBOL_NAME(sys_wait4)
>> 522 .long SYMBOL_NAME(sys_swapoff) /* 115 */
>> 523 .long SYMBOL_NAME(sys_sysinfo)
>> 524 .long SYMBOL_NAME(sys_ipc)
>> 525 .long SYMBOL_NAME(sys_fsync)
>> 526 .long SYMBOL_NAME(sys_sigreturn)
>> 527 .long SYMBOL_NAME(sys_clone) /* 120 */
>> 528 .long SYMBOL_NAME(sys_setdomainname)
>> 529 .long SYMBOL_NAME(sys_newuname)
>> 530 .long SYMBOL_NAME(sys_modify_ldt)
>> 531 .long SYMBOL_NAME(sys_adjtimex)
>> 532 .long SYMBOL_NAME(sys_mprotect) /* 125 */
>> 533 .long SYMBOL_NAME(sys_sigprocmask)
>> 534 .long SYMBOL_NAME(sys_create_module)
>> 535 .long SYMBOL_NAME(sys_init_module)
>> 536 .long SYMBOL_NAME(sys_delete_module)
>> 537 .long SYMBOL_NAME(sys_get_kernel_syms) /* 130 */
>> 538 .long SYMBOL_NAME(sys_quotactl)
>> 539 .long SYMBOL_NAME(sys_getpgid)
>> 540 .long SYMBOL_NAME(sys_fchdir)
>> 541 .long SYMBOL_NAME(sys_bdflush)
>> 542 .long SYMBOL_NAME(sys_sysfs) /* 135 */
>> 543 .long SYMBOL_NAME(sys_personality)
>> 544 .long SYMBOL_NAME(sys_ni_syscall) /* for afs_syscall */
>> 545 .long SYMBOL_NAME(sys_setfsuid16)
>> 546 .long SYMBOL_NAME(sys_setfsgid16)
>> 547 .long SYMBOL_NAME(sys_llseek) /* 140 */
>> 548 .long SYMBOL_NAME(sys_getdents)
>> 549 .long SYMBOL_NAME(sys_select)
>> 550 .long SYMBOL_NAME(sys_flock)
>> 551 .long SYMBOL_NAME(sys_msync)
>> 552 .long SYMBOL_NAME(sys_readv) /* 145 */
>> 553 .long SYMBOL_NAME(sys_writev)
>> 554 .long SYMBOL_NAME(sys_getsid)
>> 555 .long SYMBOL_NAME(sys_fdatasync)
>> 556 .long SYMBOL_NAME(sys_sysctl)
>> 557 .long SYMBOL_NAME(sys_mlock) /* 150 */
>> 558 .long SYMBOL_NAME(sys_munlock)
>> 559 .long SYMBOL_NAME(sys_mlockall)
>> 560 .long SYMBOL_NAME(sys_munlockall)
>> 561 .long SYMBOL_NAME(sys_sched_setparam)
>> 562 .long SYMBOL_NAME(sys_sched_getparam) /* 155 */
>> 563 .long SYMBOL_NAME(sys_sched_setscheduler)
>> 564 .long SYMBOL_NAME(sys_sched_getscheduler)
>> 565 .long SYMBOL_NAME(sys_sched_yield)
>> 566 .long SYMBOL_NAME(sys_sched_get_priority_max)
>> 567 .long SYMBOL_NAME(sys_sched_get_priority_min) /* 160 */
>> 568 .long SYMBOL_NAME(sys_sched_rr_get_interval)
>> 569 .long SYMBOL_NAME(sys_nanosleep)
>> 570 .long SYMBOL_NAME(sys_mremap)
>> 571 .long SYMBOL_NAME(sys_setresuid16)
>> 572 .long SYMBOL_NAME(sys_getresuid16) /* 165 */
>> 573 .long SYMBOL_NAME(sys_vm86)
>> 574 .long SYMBOL_NAME(sys_query_module)
>> 575 .long SYMBOL_NAME(sys_poll)
>> 576 .long SYMBOL_NAME(sys_nfsservctl)
>> 577 .long SYMBOL_NAME(sys_setresgid16) /* 170 */
>> 578 .long SYMBOL_NAME(sys_getresgid16)
>> 579 .long SYMBOL_NAME(sys_prctl)
>> 580 .long SYMBOL_NAME(sys_rt_sigreturn)
>> 581 .long SYMBOL_NAME(sys_rt_sigaction)
>> 582 .long SYMBOL_NAME(sys_rt_sigprocmask) /* 175 */
>> 583 .long SYMBOL_NAME(sys_rt_sigpending)
>> 584 .long SYMBOL_NAME(sys_rt_sigtimedwait)
>> 585 .long SYMBOL_NAME(sys_rt_sigqueueinfo)
>> 586 .long SYMBOL_NAME(sys_rt_sigsuspend)
>> 587 .long SYMBOL_NAME(sys_pread) /* 180 */
>> 588 .long SYMBOL_NAME(sys_pwrite)
>> 589 .long SYMBOL_NAME(sys_chown16)
>> 590 .long SYMBOL_NAME(sys_getcwd)
>> 591 .long SYMBOL_NAME(sys_capget)
>> 592 .long SYMBOL_NAME(sys_capset) /* 185 */
>> 593 .long SYMBOL_NAME(sys_sigaltstack)
>> 594 .long SYMBOL_NAME(sys_sendfile)
>> 595 .long SYMBOL_NAME(sys_ni_syscall) /* streams1 */
>> 596 .long SYMBOL_NAME(sys_ni_syscall) /* streams2 */
>> 597 .long SYMBOL_NAME(sys_vfork) /* 190 */
>> 598 .long SYMBOL_NAME(sys_getrlimit)
>> 599 .long SYMBOL_NAME(sys_mmap2)
>> 600 .long SYMBOL_NAME(sys_truncate64)
>> 601 .long SYMBOL_NAME(sys_ftruncate64)
>> 602 .long SYMBOL_NAME(sys_stat64) /* 195 */
>> 603 .long SYMBOL_NAME(sys_lstat64)
>> 604 .long SYMBOL_NAME(sys_fstat64)
>> 605 .long SYMBOL_NAME(sys_lchown)
>> 606 .long SYMBOL_NAME(sys_getuid)
>> 607 .long SYMBOL_NAME(sys_getgid) /* 200 */
>> 608 .long SYMBOL_NAME(sys_geteuid)
>> 609 .long SYMBOL_NAME(sys_getegid)
>> 610 .long SYMBOL_NAME(sys_setreuid)
>> 611 .long SYMBOL_NAME(sys_setregid)
>> 612 .long SYMBOL_NAME(sys_getgroups) /* 205 */
>> 613 .long SYMBOL_NAME(sys_setgroups)
>> 614 .long SYMBOL_NAME(sys_fchown)
>> 615 .long SYMBOL_NAME(sys_setresuid)
>> 616 .long SYMBOL_NAME(sys_getresuid)
>> 617 .long SYMBOL_NAME(sys_setresgid) /* 210 */
>> 618 .long SYMBOL_NAME(sys_getresgid)
>> 619 .long SYMBOL_NAME(sys_chown)
>> 620 .long SYMBOL_NAME(sys_setuid)
>> 621 .long SYMBOL_NAME(sys_setgid)
>> 622 .long SYMBOL_NAME(sys_setfsuid) /* 215 */
>> 623 .long SYMBOL_NAME(sys_setfsgid)
>> 624 .long SYMBOL_NAME(sys_pivot_root)
>> 625 .long SYMBOL_NAME(sys_mincore)
>> 626 .long SYMBOL_NAME(sys_madvise)
>> 627 .long SYMBOL_NAME(sys_getdents64) /* 220 */
>> 628 .long SYMBOL_NAME(sys_fcntl64)
>> 629 .long SYMBOL_NAME(sys_ni_syscall) /* reserved for TUX */
>> 630 .long SYMBOL_NAME(sys_ni_syscall) /* Reserved for Security */
>> 631 .long SYMBOL_NAME(sys_gettid)
>> 632 .long SYMBOL_NAME(sys_readahead) /* 225 */
>> 633 .long SYMBOL_NAME(sys_setxattr)
>> 634 .long SYMBOL_NAME(sys_lsetxattr)
>> 635 .long SYMBOL_NAME(sys_fsetxattr)
>> 636 .long SYMBOL_NAME(sys_getxattr)
>> 637 .long SYMBOL_NAME(sys_lgetxattr) /* 230 */
>> 638 .long SYMBOL_NAME(sys_fgetxattr)
>> 639 .long SYMBOL_NAME(sys_listxattr)
>> 640 .long SYMBOL_NAME(sys_llistxattr)
>> 641 .long SYMBOL_NAME(sys_flistxattr)
>> 642 .long SYMBOL_NAME(sys_removexattr) /* 235 */
>> 643 .long SYMBOL_NAME(sys_lremovexattr)
>> 644 .long SYMBOL_NAME(sys_fremovexattr)
>> 645 .long SYMBOL_NAME(sys_tkill)
>> 646 .long SYMBOL_NAME(sys_sendfile64)
>> 647 .long SYMBOL_NAME(sys_ni_syscall) /* 240 reserved for futex */
>> 648 .long SYMBOL_NAME(sys_ni_syscall) /* reserved for sched_setaffinity */
>> 649 .long SYMBOL_NAME(sys_ni_syscall) /* reserved for sched_getaffinity */
>> 650 .long SYMBOL_NAME(sys_ni_syscall) /* sys_set_thread_area */
>> 651 .long SYMBOL_NAME(sys_ni_syscall) /* sys_get_thread_area */
>> 652 .long SYMBOL_NAME(sys_ni_syscall) /* 245 sys_io_setup */
>> 653 .long SYMBOL_NAME(sys_ni_syscall) /* sys_io_destroy */
>> 654 .long SYMBOL_NAME(sys_ni_syscall) /* sys_io_getevents */
>> 655 .long SYMBOL_NAME(sys_ni_syscall) /* sys_io_submit */
>> 656 .long SYMBOL_NAME(sys_ni_syscall) /* sys_io_cancel */
>> 657 .long SYMBOL_NAME(sys_ni_syscall) /* 250 sys_alloc_hugepages */
>> 658 .long SYMBOL_NAME(sys_ni_syscall) /* sys_free_hugepages */
>> 659 .long SYMBOL_NAME(sys_ni_syscall) /* sys_exit_group */
>> 660 .long SYMBOL_NAME(sys_ni_syscall) /* sys_lookup_dcookie */
>> 661 .long SYMBOL_NAME(sys_ni_syscall) /* sys_epoll_create */
>> 662 .long SYMBOL_NAME(sys_ni_syscall) /* sys_epoll_ctl 255 */
>> 663 .long SYMBOL_NAME(sys_ni_syscall) /* sys_epoll_wait */
>> 664 .long SYMBOL_NAME(sys_ni_syscall) /* sys_remap_file_pages */
>> 665 .long SYMBOL_NAME(sys_ni_syscall) /* sys_set_tid_address */
>> 666
>> 667 .rept NR_syscalls-(.-sys_call_table)/4
>> 668 .long SYMBOL_NAME(sys_ni_syscall)
>> 669 .endr
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