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audit: inline audit_syscall_entry to reduce burden on archs
[deliverable/linux.git] / arch / x86 / ia32 / ia32entry.S
CommitLineData
1da177e4
LT		 1/*
2 * Compatibility mode system call entry point for x86-64.
3 *
4 * Copyright 2000-2002 Andi Kleen, SuSE Labs.
5 */
6
7#include <asm/dwarf2.h>
8#include <asm/calling.h>
e2d5df93 9#include <asm/asm-offsets.h>
1da177e4
LT		 10#include <asm/current.h>
11#include <asm/errno.h>
12#include <asm/ia32_unistd.h>
13#include <asm/thread_info.h>
14#include <asm/segment.h>
2601e64d 15#include <asm/irqflags.h>
1da177e4 16#include <linux/linkage.h>
d7e7528b 17#include <linux/err.h>
1da177e4 18
5cbf1565
RM		 19/* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
20#include <linux/elf-em.h>
21#define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE)
22#define __AUDIT_ARCH_LE 0x40000000
23
24#ifndef CONFIG_AUDITSYSCALL
24e35800
JB		 25#define sysexit_audit ia32_ret_from_sys_call
26#define sysretl_audit ia32_ret_from_sys_call
5cbf1565
RM		 27#endif
28
ea714547
JO		 29 .section .entry.text, "ax"
30
67d53ea5
AK		 31#define IA32_NR_syscalls ((ia32_syscall_end - ia32_sys_call_table)/8)
32
1da177e4
LT		 33 .macro IA32_ARG_FIXUP noebp=0
34 movl %edi,%r8d
35 .if \noebp
36 .else
37 movl %ebp,%r9d
38 .endif
39 xchg %ecx,%esi
40 movl %ebx,%edi
41 movl %edx,%edx /* zero extension */
42 .endm
43
44 /* clobbers %eax */
24e35800 45 .macro CLEAR_RREGS offset=0, _r9=rax
1da177e4 46 xorl %eax,%eax
24e35800
JB		 47 movq %rax,\offset+R11(%rsp)
48 movq %rax,\offset+R10(%rsp)
49 movq %\_r9,\offset+R9(%rsp)
50 movq %rax,\offset+R8(%rsp)
1da177e4
LT		 51 .endm
52
d4d67150
RM		 53 /*
54 * Reload arg registers from stack in case ptrace changed them.
55 * We don't reload %eax because syscall_trace_enter() returned
eefdca04
RM		 56 * the %rax value we should see. Instead, we just truncate that
57 * value to 32 bits again as we did on entry from user mode.
58 * If it's a new value set by user_regset during entry tracing,
59 * this matches the normal truncation of the user-mode value.
60 * If it's -1 to make us punt the syscall, then (u32)-1 is still
61 * an appropriately invalid value.
d4d67150 62 */
295286a8
JB		 63 .macro LOAD_ARGS32 offset, _r9=0
64 .if \_r9
176df245 65 movl \offset+16(%rsp),%r9d
295286a8 66 .endif
176df245
AK		 67 movl \offset+40(%rsp),%ecx
68 movl \offset+48(%rsp),%edx
69 movl \offset+56(%rsp),%esi
70 movl \offset+64(%rsp),%edi
eefdca04 71 movl %eax,%eax /* zero extension */
176df245
AK		 72 .endm
73
2765130b
JB		 74 .macro CFI_STARTPROC32 simple
75 CFI_STARTPROC \simple
76 CFI_UNDEFINED r8
77 CFI_UNDEFINED r9
78 CFI_UNDEFINED r10
79 CFI_UNDEFINED r11
80 CFI_UNDEFINED r12
81 CFI_UNDEFINED r13
82 CFI_UNDEFINED r14
83 CFI_UNDEFINED r15
84 .endm
85
2be29982
JF		 86#ifdef CONFIG_PARAVIRT
87ENTRY(native_usergs_sysret32)
88 swapgs
89 sysretl
90ENDPROC(native_usergs_sysret32)
91
92ENTRY(native_irq_enable_sysexit)
93 swapgs
94 sti
95 sysexit
96ENDPROC(native_irq_enable_sysexit)
97#endif
98
1da177e4
LT		 99/*
100 * 32bit SYSENTER instruction entry.
101 *
102 * Arguments:
103 * %eax System call number.
104 * %ebx Arg1
105 * %ecx Arg2
106 * %edx Arg3
107 * %esi Arg4
108 * %edi Arg5
109 * %ebp user stack
110 * 0(%ebp) Arg6
111 *
112 * Interrupts off.
113 *
114 * This is purely a fast path. For anything complicated we use the int 0x80
115 * path below. Set up a complete hardware stack frame to share code
116 * with the int 0x80 path.
117 */
118ENTRY(ia32_sysenter_target)
2765130b 119 CFI_STARTPROC32 simple
adf14236 120 CFI_SIGNAL_FRAME
7effaa88
JB		 121 CFI_DEF_CFA rsp,0
122 CFI_REGISTER rsp,rbp
457da70e 123 SWAPGS_UNSAFE_STACK
9af45651
BG		 124 movq PER_CPU_VAR(kernel_stack), %rsp
125 addq $(KERNEL_STACK_OFFSET),%rsp
2601e64d
IM		 126 /*
127 * No need to follow this irqs on/off section: the syscall
128 * disabled irqs, here we enable it straight after entry:
129 */
66804154 130 ENABLE_INTERRUPTS(CLBR_NONE)
1da177e4 131 movl %ebp,%ebp /* zero extension */
60cf637a 132 pushq_cfi $__USER32_DS
7effaa88 133 /*CFI_REL_OFFSET ss,0*/
60cf637a 134 pushq_cfi %rbp
7effaa88 135 CFI_REL_OFFSET rsp,0
60cf637a 136 pushfq_cfi
7effaa88 137 /*CFI_REL_OFFSET rflags,0*/
46db09d3 138 movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
7effaa88 139 CFI_REGISTER rip,r10
60cf637a 140 pushq_cfi $__USER32_CS
7effaa88 141 /*CFI_REL_OFFSET cs,0*/
1da177e4 142 movl %eax, %eax
60cf637a 143 pushq_cfi %r10
7effaa88 144 CFI_REL_OFFSET rip,0
60cf637a 145 pushq_cfi %rax
1da177e4 146 cld
cac0e0a7 147 SAVE_ARGS 0,1,0
1da177e4
LT		 148 /* no need to do an access_ok check here because rbp has been
149 32bit zero extended */
295286a8 1501: movl (%rbp),%ebp
1da177e4
LT		 151 .section __ex_table,"a"
152 .quad 1b,ia32_badarg
153 .previous
46db09d3
JB		 154 orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
155 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
7effaa88 156 CFI_REMEMBER_STATE
1da177e4 157 jnz sysenter_tracesys
36d001c7 158 cmpq $(IA32_NR_syscalls-1),%rax
67d53ea5 159 ja ia32_badsys
d4d67150 160sysenter_do_call:
295286a8 161 IA32_ARG_FIXUP
5cbf1565 162sysenter_dispatch:
1da177e4
LT		 163 call *ia32_sys_call_table(,%rax,8)
164 movq %rax,RAX-ARGOFFSET(%rsp)
66804154 165 DISABLE_INTERRUPTS(CLBR_NONE)
2601e64d 166 TRACE_IRQS_OFF
46db09d3 167 testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
5cbf1565
RM		 168 jnz sysexit_audit
169sysexit_from_sys_call:
46db09d3 170 andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
1da177e4
LT		 171 /* clear IF, that popfq doesn't enable interrupts early */
172 andl $~0x200,EFLAGS-R11(%rsp)
36197c92
RM		 173 movl RIP-R11(%rsp),%edx /* User %eip */
174 CFI_REGISTER rip,rdx
838feb47 175 RESTORE_ARGS 0,24,0,0,0,0
24e35800
JB		 176 xorq %r8,%r8
177 xorq %r9,%r9
178 xorq %r10,%r10
179 xorq %r11,%r11
60cf637a 180 popfq_cfi
7effaa88 181 /*CFI_RESTORE rflags*/
60cf637a 182 popq_cfi %rcx /* User %esp */
7effaa88 183 CFI_REGISTER rsp,rcx
2601e64d 184 TRACE_IRQS_ON
2be29982 185 ENABLE_INTERRUPTS_SYSEXIT32
1da177e4 186
5cbf1565
RM		 187#ifdef CONFIG_AUDITSYSCALL
188 .macro auditsys_entry_common
189 movl %esi,%r9d /* 6th arg: 4th syscall arg */
190 movl %edx,%r8d /* 5th arg: 3rd syscall arg */
191 /* (already in %ecx) 4th arg: 2nd syscall arg */
192 movl %ebx,%edx /* 3rd arg: 1st syscall arg */
193 movl %eax,%esi /* 2nd arg: syscall number */
194 movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */
b05d8447 195 call __audit_syscall_entry
5cbf1565 196 movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */
36d001c7 197 cmpq $(IA32_NR_syscalls-1),%rax
5cbf1565
RM		 198 ja ia32_badsys
199 movl %ebx,%edi /* reload 1st syscall arg */
200 movl RCX-ARGOFFSET(%rsp),%esi /* reload 2nd syscall arg */
201 movl RDX-ARGOFFSET(%rsp),%edx /* reload 3rd syscall arg */
202 movl RSI-ARGOFFSET(%rsp),%ecx /* reload 4th syscall arg */
203 movl RDI-ARGOFFSET(%rsp),%r8d /* reload 5th syscall arg */
204 .endm
205
81766741 206 .macro auditsys_exit exit
46db09d3 207 testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
24e35800 208 jnz ia32_ret_from_sys_call
5cbf1565
RM		 209 TRACE_IRQS_ON
210 sti
211 movl %eax,%esi /* second arg, syscall return value */
d7e7528b 212 cmpl $-MAX_ERRNO,%eax /* is it an error ? */
f031cd25
EP		 213 jbe 1f
214 movslq %eax, %rsi /* if error sign extend to 64 bits */
2151: setbe %al /* 1 if error, 0 if not */
5cbf1565 216 movzbl %al,%edi /* zero-extend that into %edi */
d7e7528b
EP		 217 call __audit_syscall_exit
218 movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */
5cbf1565
RM		 219 movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
220 cli
221 TRACE_IRQS_OFF
46db09d3 222 testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
24e35800
JB		 223 jz \exit
224 CLEAR_RREGS -ARGOFFSET
225 jmp int_with_check
5cbf1565
RM		 226 .endm
227
228sysenter_auditsys:
7effaa88 229 CFI_RESTORE_STATE
5cbf1565
RM		 230 auditsys_entry_common
231 movl %ebp,%r9d /* reload 6th syscall arg */
232 jmp sysenter_dispatch
233
234sysexit_audit:
235 auditsys_exit sysexit_from_sys_call
236#endif
237
238sysenter_tracesys:
5cbf1565 239#ifdef CONFIG_AUDITSYSCALL
46db09d3 240 testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
5cbf1565
RM		 241 jz sysenter_auditsys
242#endif
1da177e4
LT		 243 SAVE_REST
244 CLEAR_RREGS
48ee679a 245 movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */
1da177e4
LT		 246 movq %rsp,%rdi /* &pt_regs -> arg1 */
247 call syscall_trace_enter
176df245 248 LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
1da177e4 249 RESTORE_REST
36d001c7 250 cmpq $(IA32_NR_syscalls-1),%rax
48ee679a 251 ja int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
1da177e4
LT		 252 jmp sysenter_do_call
253 CFI_ENDPROC
4b787e0b 254ENDPROC(ia32_sysenter_target)
1da177e4
LT		 255
256/*
257 * 32bit SYSCALL instruction entry.
258 *
259 * Arguments:
260 * %eax System call number.
261 * %ebx Arg1
262 * %ecx return EIP
263 * %edx Arg3
264 * %esi Arg4
265 * %edi Arg5
266 * %ebp Arg2 [note: not saved in the stack frame, should not be touched]
267 * %esp user stack
268 * 0(%esp) Arg6
269 *
270 * Interrupts off.
271 *
272 * This is purely a fast path. For anything complicated we use the int 0x80
273 * path below. Set up a complete hardware stack frame to share code
274 * with the int 0x80 path.
275 */
276ENTRY(ia32_cstar_target)
2765130b 277 CFI_STARTPROC32 simple
adf14236 278 CFI_SIGNAL_FRAME
9af45651 279 CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
7effaa88
JB		 280 CFI_REGISTER rip,rcx
281 /*CFI_REGISTER rflags,r11*/
457da70e 282 SWAPGS_UNSAFE_STACK
1da177e4 283 movl %esp,%r8d
7effaa88 284 CFI_REGISTER rsp,r8
9af45651 285 movq PER_CPU_VAR(kernel_stack),%rsp
2601e64d
IM		 286 /*
287 * No need to follow this irqs on/off section: the syscall
288 * disabled irqs and here we enable it straight after entry:
289 */
66804154 290 ENABLE_INTERRUPTS(CLBR_NONE)
cac0e0a7 291 SAVE_ARGS 8,0,0
1da177e4
LT		 292 movl %eax,%eax /* zero extension */
293 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
294 movq %rcx,RIP-ARGOFFSET(%rsp)
7effaa88 295 CFI_REL_OFFSET rip,RIP-ARGOFFSET
1da177e4
LT		 296 movq %rbp,RCX-ARGOFFSET(%rsp) /* this lies slightly to ptrace */
297 movl %ebp,%ecx
298 movq $__USER32_CS,CS-ARGOFFSET(%rsp)
299 movq $__USER32_DS,SS-ARGOFFSET(%rsp)
300 movq %r11,EFLAGS-ARGOFFSET(%rsp)
7effaa88 301 /*CFI_REL_OFFSET rflags,EFLAGS-ARGOFFSET*/
1da177e4 302 movq %r8,RSP-ARGOFFSET(%rsp)
7effaa88 303 CFI_REL_OFFSET rsp,RSP-ARGOFFSET
1da177e4
LT		 304 /* no need to do an access_ok check here because r8 has been
305 32bit zero extended */
306 /* hardware stack frame is complete now */
3071: movl (%r8),%r9d
308 .section __ex_table,"a"
309 .quad 1b,ia32_badarg
310 .previous
46db09d3
JB		 311 orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
312 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
7effaa88 313 CFI_REMEMBER_STATE
1da177e4 314 jnz cstar_tracesys
36d001c7 315 cmpq $IA32_NR_syscalls-1,%rax
67d53ea5 316 ja ia32_badsys
295286a8 317cstar_do_call:
1da177e4 318 IA32_ARG_FIXUP 1
5cbf1565 319cstar_dispatch:
1da177e4
LT		 320 call *ia32_sys_call_table(,%rax,8)
321 movq %rax,RAX-ARGOFFSET(%rsp)
66804154 322 DISABLE_INTERRUPTS(CLBR_NONE)
2601e64d 323 TRACE_IRQS_OFF
46db09d3 324 testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
5cbf1565
RM		 325 jnz sysretl_audit
326sysretl_from_sys_call:
46db09d3 327 andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
838feb47 328 RESTORE_ARGS 0,-ARG_SKIP,0,0,0
1da177e4 329 movl RIP-ARGOFFSET(%rsp),%ecx
7effaa88 330 CFI_REGISTER rip,rcx
1da177e4 331 movl EFLAGS-ARGOFFSET(%rsp),%r11d
7effaa88 332 /*CFI_REGISTER rflags,r11*/
24e35800
JB		 333 xorq %r10,%r10
334 xorq %r9,%r9
335 xorq %r8,%r8
2601e64d 336 TRACE_IRQS_ON
1da177e4 337 movl RSP-ARGOFFSET(%rsp),%esp
7effaa88 338 CFI_RESTORE rsp
2be29982 339 USERGS_SYSRET32
1da177e4 340
5cbf1565
RM		 341#ifdef CONFIG_AUDITSYSCALL
342cstar_auditsys:
7effaa88 343 CFI_RESTORE_STATE
5cbf1565
RM		 344 movl %r9d,R9-ARGOFFSET(%rsp) /* register to be clobbered by call */
345 auditsys_entry_common
346 movl R9-ARGOFFSET(%rsp),%r9d /* reload 6th syscall arg */
347 jmp cstar_dispatch
348
349sysretl_audit:
81766741 350 auditsys_exit sysretl_from_sys_call
5cbf1565
RM		 351#endif
352
353cstar_tracesys:
354#ifdef CONFIG_AUDITSYSCALL
46db09d3 355 testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
5cbf1565
RM		 356 jz cstar_auditsys
357#endif
ecd744ee 358 xchgl %r9d,%ebp
1da177e4 359 SAVE_REST
24e35800 360 CLEAR_RREGS 0, r9
48ee679a 361 movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
1da177e4
LT		 362 movq %rsp,%rdi /* &pt_regs -> arg1 */
363 call syscall_trace_enter
295286a8 364 LOAD_ARGS32 ARGOFFSET, 1 /* reload args from stack in case ptrace changed it */
1da177e4 365 RESTORE_REST
ecd744ee 366 xchgl %ebp,%r9d
36d001c7 367 cmpq $(IA32_NR_syscalls-1),%rax
48ee679a 368 ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
1da177e4 369 jmp cstar_do_call
4b787e0b 370END(ia32_cstar_target)
1da177e4
LT		 371
372ia32_badarg:
373 movq $-EFAULT,%rax
374 jmp ia32_sysret
375 CFI_ENDPROC
376
377/*
378 * Emulated IA32 system calls via int 0x80.
379 *
380 * Arguments:
381 * %eax System call number.
382 * %ebx Arg1
383 * %ecx Arg2
384 * %edx Arg3
385 * %esi Arg4
386 * %edi Arg5
387 * %ebp Arg6 [note: not saved in the stack frame, should not be touched]
388 *
389 * Notes:
390 * Uses the same stack frame as the x86-64 version.
391 * All registers except %eax must be saved (but ptrace may violate that)
392 * Arguments are zero extended. For system calls that want sign extension and
393 * take long arguments a wrapper is needed. Most calls can just be called
394 * directly.
395 * Assumes it is only called from user space and entered with interrupts off.
396 */
397
398ENTRY(ia32_syscall)
cdc1793e 399 CFI_STARTPROC32 simple
adf14236 400 CFI_SIGNAL_FRAME
7effaa88
JB		 401 CFI_DEF_CFA rsp,SS+8-RIP
402 /*CFI_REL_OFFSET ss,SS-RIP*/
403 CFI_REL_OFFSET rsp,RSP-RIP
404 /*CFI_REL_OFFSET rflags,EFLAGS-RIP*/
405 /*CFI_REL_OFFSET cs,CS-RIP*/
406 CFI_REL_OFFSET rip,RIP-RIP
360c044e 407 PARAVIRT_ADJUST_EXCEPTION_FRAME
66804154 408 SWAPGS
2601e64d
IM		 409 /*
410 * No need to follow this irqs on/off section: the syscall
411 * disabled irqs and here we enable it straight after entry:
412 */
66804154 413 ENABLE_INTERRUPTS(CLBR_NONE)
1da177e4 414 movl %eax,%eax
60cf637a 415 pushq_cfi %rax
1da177e4
LT		 416 cld
417 /* note the registers are not zero extended to the sf.
418 this could be a problem. */
cac0e0a7 419 SAVE_ARGS 0,1,0
46db09d3
JB		 420 orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
421 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
1da177e4 422 jnz ia32_tracesys
36d001c7 423 cmpq $(IA32_NR_syscalls-1),%rax
c09249f8
RM		 424 ja ia32_badsys
425ia32_do_call:
1da177e4
LT		 426 IA32_ARG_FIXUP
427 call *ia32_sys_call_table(,%rax,8) # xxx: rip relative
428ia32_sysret:
429 movq %rax,RAX-ARGOFFSET(%rsp)
24e35800
JB		 430ia32_ret_from_sys_call:
431 CLEAR_RREGS -ARGOFFSET
1da177e4
LT		 432 jmp int_ret_from_sys_call
433
434ia32_tracesys:
435 SAVE_REST
cdc1793e 436 CLEAR_RREGS
8ab32bb8 437 movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
1da177e4
LT		 438 movq %rsp,%rdi /* &pt_regs -> arg1 */
439 call syscall_trace_enter
176df245 440 LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
1da177e4 441 RESTORE_REST
36d001c7 442 cmpq $(IA32_NR_syscalls-1),%rax
c09249f8
RM		 443 ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
444 jmp ia32_do_call
4b787e0b 445END(ia32_syscall)
1da177e4
LT		 446
447ia32_badsys:
448 movq $0,ORIG_RAX-ARGOFFSET(%rsp)
24e35800
JB		 449 movq $-ENOSYS,%rax
450 jmp ia32_sysret
1da177e4 451
1da177e4
LT		 452quiet_ni_syscall:
453 movq $-ENOSYS,%rax
454 ret
455 CFI_ENDPROC
456
457 .macro PTREGSCALL label, func, arg
f6b2bc84
JB		 458 ALIGN
459GLOBAL(\label)
1da177e4
LT		 460 leaq \func(%rip),%rax
461 leaq -ARGOFFSET+8(%rsp),\arg /* 8 for return address */
462 jmp ia32_ptregs_common
463 .endm
464
2765130b 465 CFI_STARTPROC32
7effaa88 466
1da177e4
LT		 467 PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn, %rdi
468 PTREGSCALL stub32_sigreturn, sys32_sigreturn, %rdi
469 PTREGSCALL stub32_sigaltstack, sys32_sigaltstack, %rdx
1da177e4
LT		 470 PTREGSCALL stub32_execve, sys32_execve, %rcx
471 PTREGSCALL stub32_fork, sys_fork, %rdi
472 PTREGSCALL stub32_clone, sys32_clone, %rdx
473 PTREGSCALL stub32_vfork, sys_vfork, %rdi
474 PTREGSCALL stub32_iopl, sys_iopl, %rsi
1da177e4 475
f6b2bc84
JB		 476 ALIGN
477ia32_ptregs_common:
1da177e4 478 popq %r11
2765130b
JB		 479 CFI_ENDPROC
480 CFI_STARTPROC32 simple
adf14236 481 CFI_SIGNAL_FRAME
2765130b
JB		 482 CFI_DEF_CFA rsp,SS+8-ARGOFFSET
483 CFI_REL_OFFSET rax,RAX-ARGOFFSET
484 CFI_REL_OFFSET rcx,RCX-ARGOFFSET
485 CFI_REL_OFFSET rdx,RDX-ARGOFFSET
486 CFI_REL_OFFSET rsi,RSI-ARGOFFSET
487 CFI_REL_OFFSET rdi,RDI-ARGOFFSET
488 CFI_REL_OFFSET rip,RIP-ARGOFFSET
489/* CFI_REL_OFFSET cs,CS-ARGOFFSET*/
490/* CFI_REL_OFFSET rflags,EFLAGS-ARGOFFSET*/
491 CFI_REL_OFFSET rsp,RSP-ARGOFFSET
492/* CFI_REL_OFFSET ss,SS-ARGOFFSET*/
1da177e4
LT		 493 SAVE_REST
494 call *%rax
495 RESTORE_REST
496 jmp ia32_sysret /* misbalances the return cache */
497 CFI_ENDPROC
4b787e0b 498END(ia32_ptregs_common)
1da177e4 499
bb152f53 500 .section .rodata,"a"
1da177e4 501 .align 8
1da177e4
LT		 502ia32_sys_call_table:
503 .quad sys_restart_syscall
504 .quad sys_exit
505 .quad stub32_fork
506 .quad sys_read
507 .quad sys_write
e922efc3 508 .quad compat_sys_open /* 5 */
1da177e4
LT		 509 .quad sys_close
510 .quad sys32_waitpid
511 .quad sys_creat
512 .quad sys_link
513 .quad sys_unlink /* 10 */
514 .quad stub32_execve
515 .quad sys_chdir
516 .quad compat_sys_time
517 .quad sys_mknod
518 .quad sys_chmod /* 15 */
519 .quad sys_lchown16
520 .quad quiet_ni_syscall /* old break syscall holder */
521 .quad sys_stat
522 .quad sys32_lseek
523 .quad sys_getpid /* 20 */
524 .quad compat_sys_mount /* mount */
525 .quad sys_oldumount /* old_umount */
526 .quad sys_setuid16
527 .quad sys_getuid16
528 .quad compat_sys_stime /* stime */ /* 25 */
562b80ba 529 .quad compat_sys_ptrace /* ptrace */
1da177e4
LT		 530 .quad sys_alarm
531 .quad sys_fstat /* (old)fstat */
532 .quad sys_pause
533 .quad compat_sys_utime /* 30 */
534 .quad quiet_ni_syscall /* old stty syscall holder */
535 .quad quiet_ni_syscall /* old gtty syscall holder */
536 .quad sys_access
537 .quad sys_nice
538 .quad quiet_ni_syscall /* 35 */ /* old ftime syscall holder */
539 .quad sys_sync
540 .quad sys32_kill
541 .quad sys_rename
542 .quad sys_mkdir
543 .quad sys_rmdir /* 40 */
544 .quad sys_dup
4c711576 545 .quad sys_pipe
1da177e4
LT		 546 .quad compat_sys_times
547 .quad quiet_ni_syscall /* old prof syscall holder */
548 .quad sys_brk /* 45 */
549 .quad sys_setgid16
550 .quad sys_getgid16
551 .quad sys_signal
552 .quad sys_geteuid16
553 .quad sys_getegid16 /* 50 */
554 .quad sys_acct
555 .quad sys_umount /* new_umount */
556 .quad quiet_ni_syscall /* old lock syscall holder */
557 .quad compat_sys_ioctl
558 .quad compat_sys_fcntl64 /* 55 */
559 .quad quiet_ni_syscall /* old mpx syscall holder */
560 .quad sys_setpgid
561 .quad quiet_ni_syscall /* old ulimit syscall holder */
5cacdb4a 562 .quad sys_olduname
1da177e4
LT		 563 .quad sys_umask /* 60 */
564 .quad sys_chroot
2b1c6bd7 565 .quad compat_sys_ustat
1da177e4
LT		 566 .quad sys_dup2
567 .quad sys_getppid
568 .quad sys_getpgrp /* 65 */
569 .quad sys_setsid
570 .quad sys32_sigaction
571 .quad sys_sgetmask
572 .quad sys_ssetmask
573 .quad sys_setreuid16 /* 70 */
574 .quad sys_setregid16
5f0120b5 575 .quad sys32_sigsuspend
1da177e4
LT		 576 .quad compat_sys_sigpending
577 .quad sys_sethostname
578 .quad compat_sys_setrlimit /* 75 */
579 .quad compat_sys_old_getrlimit /* old_getrlimit */
580 .quad compat_sys_getrusage
b418da16
CH		 581 .quad compat_sys_gettimeofday
582 .quad compat_sys_settimeofday
1da177e4
LT		 583 .quad sys_getgroups16 /* 80 */
584 .quad sys_setgroups16
5d0e5283 585 .quad compat_sys_old_select
1da177e4
LT		 586 .quad sys_symlink
587 .quad sys_lstat
588 .quad sys_readlink /* 85 */
1da177e4 589 .quad sys_uselib
1da177e4
LT		 590 .quad sys_swapon
591 .quad sys_reboot
592 .quad compat_sys_old_readdir
593 .quad sys32_mmap /* 90 */
594 .quad sys_munmap
595 .quad sys_truncate
596 .quad sys_ftruncate
597 .quad sys_fchmod
598 .quad sys_fchown16 /* 95 */
599 .quad sys_getpriority
600 .quad sys_setpriority
601 .quad quiet_ni_syscall /* old profil syscall holder */
602 .quad compat_sys_statfs
603 .quad compat_sys_fstatfs /* 100 */
604 .quad sys_ioperm
605 .quad compat_sys_socketcall
606 .quad sys_syslog
607 .quad compat_sys_setitimer
608 .quad compat_sys_getitimer /* 105 */
609 .quad compat_sys_newstat
610 .quad compat_sys_newlstat
611 .quad compat_sys_newfstat
5cacdb4a 612 .quad sys_uname
1da177e4
LT		 613 .quad stub32_iopl /* 110 */
614 .quad sys_vhangup
615 .quad quiet_ni_syscall /* old "idle" system call */
616 .quad sys32_vm86_warning /* vm86old */
617 .quad compat_sys_wait4
618 .quad sys_swapoff /* 115 */
d4d23add 619 .quad compat_sys_sysinfo
1da177e4
LT		 620 .quad sys32_ipc
621 .quad sys_fsync
622 .quad stub32_sigreturn
623 .quad stub32_clone /* 120 */
624 .quad sys_setdomainname
4cecd935 625 .quad sys_newuname
1da177e4 626 .quad sys_modify_ldt
3158e941 627 .quad compat_sys_adjtimex
1da177e4
LT		 628 .quad sys32_mprotect /* 125 */
629 .quad compat_sys_sigprocmask
630 .quad quiet_ni_syscall /* create_module */
631 .quad sys_init_module
632 .quad sys_delete_module
633 .quad quiet_ni_syscall /* 130 get_kernel_syms */
b716395e 634 .quad sys32_quotactl
1da177e4
LT		 635 .quad sys_getpgid
636 .quad sys_fchdir
637 .quad quiet_ni_syscall /* bdflush */
638 .quad sys_sysfs /* 135 */
639 .quad sys_personality
640 .quad quiet_ni_syscall /* for afs_syscall */
641 .quad sys_setfsuid16
642 .quad sys_setfsgid16
643 .quad sys_llseek /* 140 */
644 .quad compat_sys_getdents
645 .quad compat_sys_select
646 .quad sys_flock
647 .quad sys_msync
648 .quad compat_sys_readv /* 145 */
649 .quad compat_sys_writev
650 .quad sys_getsid
651 .quad sys_fdatasync
c3359fbc 652 .quad compat_sys_sysctl /* sysctl */
1da177e4
LT		 653 .quad sys_mlock /* 150 */
654 .quad sys_munlock
655 .quad sys_mlockall
656 .quad sys_munlockall
657 .quad sys_sched_setparam
658 .quad sys_sched_getparam /* 155 */
659 .quad sys_sched_setscheduler
660 .quad sys_sched_getscheduler
661 .quad sys_sched_yield
662 .quad sys_sched_get_priority_max
663 .quad sys_sched_get_priority_min /* 160 */
a9bc3bfd 664 .quad sys32_sched_rr_get_interval
1da177e4
LT		 665 .quad compat_sys_nanosleep
666 .quad sys_mremap
667 .quad sys_setresuid16
668 .quad sys_getresuid16 /* 165 */
669 .quad sys32_vm86_warning /* vm86 */
670 .quad quiet_ni_syscall /* query_module */
671 .quad sys_poll
f5b94099 672 .quad quiet_ni_syscall /* old nfsservctl */
1da177e4
LT		 673 .quad sys_setresgid16 /* 170 */
674 .quad sys_getresgid16
675 .quad sys_prctl
676 .quad stub32_rt_sigreturn
677 .quad sys32_rt_sigaction
678 .quad sys32_rt_sigprocmask /* 175 */
679 .quad sys32_rt_sigpending
680 .quad compat_sys_rt_sigtimedwait
681 .quad sys32_rt_sigqueueinfo
5f0120b5 682 .quad sys_rt_sigsuspend
1da177e4
LT		 683 .quad sys32_pread /* 180 */
684 .quad sys32_pwrite
685 .quad sys_chown16
686 .quad sys_getcwd
687 .quad sys_capget
688 .quad sys_capset
689 .quad stub32_sigaltstack
690 .quad sys32_sendfile
691 .quad quiet_ni_syscall /* streams1 */
692 .quad quiet_ni_syscall /* streams2 */
693 .quad stub32_vfork /* 190 */
694 .quad compat_sys_getrlimit
f8b72560 695 .quad sys_mmap_pgoff
1da177e4
LT		 696 .quad sys32_truncate64
697 .quad sys32_ftruncate64
698 .quad sys32_stat64 /* 195 */
699 .quad sys32_lstat64
700 .quad sys32_fstat64
701 .quad sys_lchown
702 .quad sys_getuid
703 .quad sys_getgid /* 200 */
704 .quad sys_geteuid
705 .quad sys_getegid
706 .quad sys_setreuid
707 .quad sys_setregid
708 .quad sys_getgroups /* 205 */
709 .quad sys_setgroups
710 .quad sys_fchown
711 .quad sys_setresuid
712 .quad sys_getresuid
713 .quad sys_setresgid /* 210 */
714 .quad sys_getresgid
715 .quad sys_chown
716 .quad sys_setuid
717 .quad sys_setgid
718 .quad sys_setfsuid /* 215 */
719 .quad sys_setfsgid
720 .quad sys_pivot_root
721 .quad sys_mincore
722 .quad sys_madvise
723 .quad compat_sys_getdents64 /* 220 getdents64 */
724 .quad compat_sys_fcntl64
725 .quad quiet_ni_syscall /* tux */
726 .quad quiet_ni_syscall /* security */
727 .quad sys_gettid
e412ac49 728 .quad sys32_readahead /* 225 */
1da177e4
LT		 729 .quad sys_setxattr
730 .quad sys_lsetxattr
731 .quad sys_fsetxattr
732 .quad sys_getxattr
733 .quad sys_lgetxattr /* 230 */
734 .quad sys_fgetxattr
735 .quad sys_listxattr
736 .quad sys_llistxattr
737 .quad sys_flistxattr
738 .quad sys_removexattr /* 235 */
739 .quad sys_lremovexattr
740 .quad sys_fremovexattr
741 .quad sys_tkill
742 .quad sys_sendfile64
743 .quad compat_sys_futex /* 240 */
744 .quad compat_sys_sched_setaffinity
745 .quad compat_sys_sched_getaffinity
efd1ca52
RM		 746 .quad sys_set_thread_area
747 .quad sys_get_thread_area
1da177e4
LT		 748 .quad compat_sys_io_setup /* 245 */
749 .quad sys_io_destroy
750 .quad compat_sys_io_getevents
751 .quad compat_sys_io_submit
752 .quad sys_io_cancel
e412ac49 753 .quad sys32_fadvise64 /* 250 */
1da177e4
LT		 754 .quad quiet_ni_syscall /* free_huge_pages */
755 .quad sys_exit_group
756 .quad sys32_lookup_dcookie
757 .quad sys_epoll_create
758 .quad sys_epoll_ctl /* 255 */
759 .quad sys_epoll_wait
760 .quad sys_remap_file_pages
761 .quad sys_set_tid_address
3a0f69d5 762 .quad compat_sys_timer_create
1da177e4
LT		 763 .quad compat_sys_timer_settime /* 260 */
764 .quad compat_sys_timer_gettime
765 .quad sys_timer_getoverrun
766 .quad sys_timer_delete
767 .quad compat_sys_clock_settime
768 .quad compat_sys_clock_gettime /* 265 */
769 .quad compat_sys_clock_getres
770 .quad compat_sys_clock_nanosleep
771 .quad compat_sys_statfs64
772 .quad compat_sys_fstatfs64
773 .quad sys_tgkill /* 270 */
774 .quad compat_sys_utimes
775 .quad sys32_fadvise64_64
776 .quad quiet_ni_syscall /* sys_vserver */
777 .quad sys_mbind
778 .quad compat_sys_get_mempolicy /* 275 */
779 .quad sys_set_mempolicy
780 .quad compat_sys_mq_open
781 .quad sys_mq_unlink
782 .quad compat_sys_mq_timedsend
783 .quad compat_sys_mq_timedreceive /* 280 */
784 .quad compat_sys_mq_notify
785 .quad compat_sys_mq_getsetattr
5234f5eb 786 .quad compat_sys_kexec_load /* reserved for kexec */
1da177e4 787 .quad compat_sys_waitid
725b38ab 788 .quad quiet_ni_syscall /* 285: sys_altroot */
1da177e4
LT		 789 .quad sys_add_key
790 .quad sys_request_key
791 .quad sys_keyctl
725b38ab
RL		 792 .quad sys_ioprio_set
793 .quad sys_ioprio_get /* 290 */
794 .quad sys_inotify_init
795 .quad sys_inotify_add_watch
796 .quad sys_inotify_rm_watch
39743889 797 .quad sys_migrate_pages
a60fc519
UD		 798 .quad compat_sys_openat /* 295 */
799 .quad sys_mkdirat
800 .quad sys_mknodat
801 .quad sys_fchownat
3833a705 802 .quad compat_sys_futimesat
cff2b760 803 .quad sys32_fstatat /* 300 */
a60fc519
UD		 804 .quad sys_unlinkat
805 .quad sys_renameat
806 .quad sys_linkat
807 .quad sys_symlinkat
808 .quad sys_readlinkat /* 305 */
809 .quad sys_fchmodat
810 .quad sys_faccessat
957dc87c
AK		 811 .quad compat_sys_pselect6
812 .quad compat_sys_ppoll
4b88f093 813 .quad sys_unshare /* 310 */
8fdd6c6d
IM		 814 .quad compat_sys_set_robust_list
815 .quad compat_sys_get_robust_list
b8feb47f 816 .quad sys_splice
e412ac49 817 .quad sys32_sync_file_range
1c710c89 818 .quad sys_tee /* 315 */
d2610202 819 .quad compat_sys_vmsplice
1b2db9fb 820 .quad compat_sys_move_pages
3cfc348b 821 .quad sys_getcpu
9af3cf05 822 .quad sys_epoll_pwait
1c710c89 823 .quad compat_sys_utimensat /* 320 */
ae7d5c86 824 .quad compat_sys_signalfd
cb9282ee 825 .quad sys_timerfd_create
fdb902b1 826 .quad sys_eventfd
97ac7350 827 .quad sys32_fallocate
cb9282ee
DL		 828 .quad compat_sys_timerfd_settime /* 325 */
829 .quad compat_sys_timerfd_gettime
9deb27ba 830 .quad compat_sys_signalfd4
b087498e 831 .quad sys_eventfd2
9fe5ad9c 832 .quad sys_epoll_create1
241771ef 833 .quad sys_dup3 /* 330 */
ed8cae8b 834 .quad sys_pipe2
4006553b 835 .quad sys_inotify_init1
f3554f4b
GH		 836 .quad compat_sys_preadv
837 .quad compat_sys_pwritev
12d16114 838 .quad compat_sys_rt_tgsigqueueinfo /* 335 */
cdd6c482 839 .quad sys_perf_event_open
a2e27255 840 .quad compat_sys_recvmmsg
11637e4b 841 .quad sys_fanotify_init
bbaa4168 842 .quad sys32_fanotify_mark
8cbd84f2 843 .quad sys_prlimit64 /* 340 */
6aae5f2b
AK		 844 .quad sys_name_to_handle_at
845 .quad compat_sys_open_by_handle_at
ce26efde 846 .quad compat_sys_clock_adjtime
b7ed78f5 847 .quad sys_syncfs
228e548e 848 .quad compat_sys_sendmmsg /* 345 */
7b21fddd 849 .quad sys_setns
fcf63409
CY		 850 .quad compat_sys_process_vm_readv
851 .quad compat_sys_process_vm_writev
ae7d5c86 852ia32_syscall_end:
Linux kernel - Deliverables
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