1
2 /*--------------------------------------------------------------------*/
3 /*--- Platform-specific syscalls stuff. syswrap-ppc32-linux.c ---*/
4 /*--------------------------------------------------------------------*/
5
6 /*
7 This file is part of Valgrind, a dynamic binary instrumentation
8 framework.
9
10 Copyright (C) 2005-2015 Nicholas Nethercote <njn@valgrind.org>
11 Copyright (C) 2005-2015 Cerion Armour-Brown <cerion@open-works.co.uk>
12
13 This program is free software; you can redistribute it and/or
14 modify it under the terms of the GNU General Public License as
15 published by the Free Software Foundation; either version 2 of the
16 License, or (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful, but
19 WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
26 02111-1307, USA.
27
28 The GNU General Public License is contained in the file COPYING.
29 */
30
31 #if defined(VGP_ppc32_linux)
32
33 #include "pub_core_basics.h"
34 #include "pub_core_vki.h"
35 #include "pub_core_vkiscnums.h"
36 #include "pub_core_threadstate.h"
37 #include "pub_core_aspacemgr.h"
38 #include "pub_core_debuglog.h"
39 #include "pub_core_libcbase.h"
40 #include "pub_core_libcassert.h"
41 #include "pub_core_libcprint.h"
42 #include "pub_core_libcproc.h"
43 #include "pub_core_libcsignal.h"
44 #include "pub_core_options.h"
45 #include "pub_core_scheduler.h"
46 #include "pub_core_sigframe.h" // For VG_(sigframe_destroy)()
47 #include "pub_core_signals.h"
48 #include "pub_core_syscall.h"
49 #include "pub_core_syswrap.h"
50 #include "pub_core_tooliface.h"
51
52 #include "priv_types_n_macros.h"
53 #include "priv_syswrap-generic.h" /* for decls of generic wrappers */
54 #include "priv_syswrap-linux.h" /* for decls of linux-ish wrappers */
55 #include "priv_syswrap-main.h"
56
57
58 /* ---------------------------------------------------------------------
59 clone() handling
60 ------------------------------------------------------------------ */
61
62 /* Call f(arg1), but first switch stacks, using 'stack' as the new
63 stack, and use 'retaddr' as f's return-to address. Also, clear all
64 the integer registers before entering f.*/
65 __attribute__((noreturn))
66 void ML_(call_on_new_stack_0_1) ( Addr stack,
67 Addr retaddr,
68 void (*f)(Word),
69 Word arg1 );
70 // r3 = stack
71 // r4 = retaddr
72 // r5 = f
73 // r6 = arg1
74 asm(
75 ".text\n"
76 ".globl vgModuleLocal_call_on_new_stack_0_1\n"
77 "vgModuleLocal_call_on_new_stack_0_1:\n"
78 " mr %r1,%r3\n\t" // stack to %sp
79 " mtlr %r4\n\t" // retaddr to %lr
80 " mtctr %r5\n\t" // f to count reg
81 " mr %r3,%r6\n\t" // arg1 to %r3
82 " li 0,0\n\t" // zero all GP regs
83 " li 4,0\n\t"
84 " li 5,0\n\t"
85 " li 6,0\n\t"
86 " li 7,0\n\t"
87 " li 8,0\n\t"
88 " li 9,0\n\t"
89 " li 10,0\n\t"
90 " li 11,0\n\t"
91 " li 12,0\n\t"
92 " li 13,0\n\t"
93 " li 14,0\n\t"
94 " li 15,0\n\t"
95 " li 16,0\n\t"
96 " li 17,0\n\t"
97 " li 18,0\n\t"
98 " li 19,0\n\t"
99 " li 20,0\n\t"
100 " li 21,0\n\t"
101 " li 22,0\n\t"
102 " li 23,0\n\t"
103 " li 24,0\n\t"
104 " li 25,0\n\t"
105 " li 26,0\n\t"
106 " li 27,0\n\t"
107 " li 28,0\n\t"
108 " li 29,0\n\t"
109 " li 30,0\n\t"
110 " li 31,0\n\t"
111 " mtxer 0\n\t" // CAB: Need this?
112 " mtcr 0\n\t" // CAB: Need this?
113 " bctr\n\t" // jump to dst
114 " trap\n" // should never get here
115 ".previous\n"
116 );
117
118
119 /*
120 Perform a clone system call. clone is strange because it has
121 fork()-like return-twice semantics, so it needs special
122 handling here.
123
124 Upon entry, we have:
125
126 int (fn)(void*) in r3
127 void* child_stack in r4
128 int flags in r5
129 void* arg in r6
130 pid_t* child_tid in r7
131 pid_t* parent_tid in r8
132 void* ??? in r9
133
134 System call requires:
135
136 int $__NR_clone in r0 (sc number)
137 int flags in r3 (sc arg1)
138 void* child_stack in r4 (sc arg2)
139 pid_t* parent_tid in r5 (sc arg3)
140 ?? child_tls in r6 (sc arg4)
141 pid_t* child_tid in r7 (sc arg5)
142 void* ??? in r8 (sc arg6)
143
144 Returns an Int encoded in the linux-ppc32 way, not a SysRes.
145 */
146 #define __NR_CLONE VG_STRINGIFY(__NR_clone)
147 #define __NR_EXIT VG_STRINGIFY(__NR_exit)
148
149 extern
150 ULong do_syscall_clone_ppc32_linux ( Word (*fn)(void *),
151 void* stack,
152 Int flags,
153 void* arg,
154 Int* child_tid,
155 Int* parent_tid,
156 vki_modify_ldt_t * );
157 asm(
158 ".text\n"
159 ".globl do_syscall_clone_ppc32_linux\n"
160 "do_syscall_clone_ppc32_linux:\n"
161 " stwu 1,-32(1)\n"
162 " stw 29,20(1)\n"
163 " stw 30,24(1)\n"
164 " stw 31,28(1)\n"
165 " mr 30,3\n" // preserve fn
166 " mr 31,6\n" // preserve arg
167
168 // setup child stack
169 " rlwinm 4,4,0,~0xf\n" // trim sp to multiple of 16 bytes
170 " li 0,0\n"
171 " stwu 0,-16(4)\n" // make initial stack frame
172 " mr 29,4\n" // preserve sp
173
174 // setup syscall
175 " li 0,"__NR_CLONE"\n" // syscall number
176 " mr 3,5\n" // syscall arg1: flags
177 // r4 already setup // syscall arg2: child_stack
178 " mr 5,8\n" // syscall arg3: parent_tid
179 " mr 6,2\n" // syscall arg4: REAL THREAD tls
180 " mr 7,7\n" // syscall arg5: child_tid
181 " mr 8,8\n" // syscall arg6: ????
182 " mr 9,9\n" // syscall arg7: ????
183
184 " sc\n" // clone()
185
186 " mfcr 4\n" // return CR in r4 (low word of ULong)
187 " cmpwi 3,0\n" // child if retval == 0
188 " bne 1f\n" // jump if !child
189
190 /* CHILD - call thread function */
191 /* Note: 2.4 kernel doesn't set the child stack pointer,
192 so we do it here.
193 That does leave a small window for a signal to be delivered
194 on the wrong stack, unfortunately. */
195 " mr 1,29\n"
196 " mtctr 30\n" // ctr reg = fn
197 " mr 3,31\n" // r3 = arg
198 " bctrl\n" // call fn()
199
200 // exit with result
201 " li 0,"__NR_EXIT"\n"
202 " sc\n"
203
204 // Exit returned?!
205 " .long 0\n"
206
207 // PARENT or ERROR - return
208 "1: lwz 29,20(1)\n"
209 " lwz 30,24(1)\n"
210 " lwz 31,28(1)\n"
211 " addi 1,1,32\n"
212 " blr\n"
213 ".previous\n"
214 );
215
216 #undef __NR_CLONE
217 #undef __NR_EXIT
218
219 // forward declarations
220 static void setup_child ( ThreadArchState*, ThreadArchState* );
221
222 /*
223 When a client clones, we need to keep track of the new thread. This means:
224 1. allocate a ThreadId+ThreadState+stack for the thread
225
226 2. initialize the thread's new VCPU state
227
228 3. create the thread using the same args as the client requested,
229 but using the scheduler entrypoint for IP, and a separate stack
230 for SP.
231 */
do_clone(ThreadId ptid,UInt flags,Addr sp,Int * parent_tidptr,Int * child_tidptr,Addr child_tls)232 static SysRes do_clone ( ThreadId ptid,
233 UInt flags, Addr sp,
234 Int *parent_tidptr,
235 Int *child_tidptr,
236 Addr child_tls)
237 {
238 const Bool debug = False;
239
240 ThreadId ctid = VG_(alloc_ThreadState)();
241 ThreadState* ptst = VG_(get_ThreadState)(ptid);
242 ThreadState* ctst = VG_(get_ThreadState)(ctid);
243 ULong word64;
244 UWord* stack;
245 SysRes res;
246 vki_sigset_t blockall, savedmask;
247
248 VG_(sigfillset)(&blockall);
249
250 vg_assert(VG_(is_running_thread)(ptid));
251 vg_assert(VG_(is_valid_tid)(ctid));
252
253 stack = (UWord*)ML_(allocstack)(ctid);
254 if (stack == NULL) {
255 res = VG_(mk_SysRes_Error)( VKI_ENOMEM );
256 goto out;
257 }
258
259 //? /* make a stack frame */
260 //? stack -= 16;
261 //? *(UWord *)stack = 0;
262
263
264 /* Copy register state
265
266 Both parent and child return to the same place, and the code
267 following the clone syscall works out which is which, so we
268 don't need to worry about it.
269
270 The parent gets the child's new tid returned from clone, but the
271 child gets 0.
272
273 If the clone call specifies a NULL SP for the new thread, then
274 it actually gets a copy of the parent's SP.
275
276 The child's TLS register (r2) gets set to the tlsaddr argument
277 if the CLONE_SETTLS flag is set.
278 */
279 setup_child( &ctst->arch, &ptst->arch );
280
281 /* Make sys_clone appear to have returned Success(0) in the
282 child. */
283 { UInt old_cr = LibVEX_GuestPPC32_get_CR( &ctst->arch.vex );
284 /* %r3 = 0 */
285 ctst->arch.vex.guest_GPR3 = 0;
286 /* %cr0.so = 0 */
287 LibVEX_GuestPPC32_put_CR( old_cr & ~(1<<28), &ctst->arch.vex );
288 }
289
290 if (sp != 0)
291 ctst->arch.vex.guest_GPR1 = sp;
292
293 ctst->os_state.parent = ptid;
294
295 /* inherit signal mask */
296 ctst->sig_mask = ptst->sig_mask;
297 ctst->tmp_sig_mask = ptst->sig_mask;
298
299 /* Start the child with its threadgroup being the same as the
300 parent's. This is so that any exit_group calls that happen
301 after the child is created but before it sets its
302 os_state.threadgroup field for real (in thread_wrapper in
303 syswrap-linux.c), really kill the new thread. a.k.a this avoids
304 a race condition in which the thread is unkillable (via
305 exit_group) because its threadgroup is not set. The race window
306 is probably only a few hundred or a few thousand cycles long.
307 See #226116. */
308 ctst->os_state.threadgroup = ptst->os_state.threadgroup;
309
310 ML_(guess_and_register_stack) (sp, ctst);
311
312 /* Assume the clone will succeed, and tell any tool that wants to
313 know that this thread has come into existence. If the clone
314 fails, we'll send out a ll_exit notification for it at the out:
315 label below, to clean up. */
316 vg_assert(VG_(owns_BigLock_LL)(ptid));
317 VG_TRACK ( pre_thread_ll_create, ptid, ctid );
318
319 if (flags & VKI_CLONE_SETTLS) {
320 if (debug)
321 VG_(printf)("clone child has SETTLS: tls at %#lx\n", child_tls);
322 ctst->arch.vex.guest_GPR2 = child_tls;
323 }
324
325 flags &= ~VKI_CLONE_SETTLS;
326
327 /* start the thread with everything blocked */
328 VG_(sigprocmask)(VKI_SIG_SETMASK, &blockall, &savedmask);
329
330 /* Create the new thread */
331 word64 = do_syscall_clone_ppc32_linux(
332 ML_(start_thread_NORETURN), stack, flags, &VG_(threads)[ctid],
333 child_tidptr, parent_tidptr, NULL
334 );
335 /* High half word64 is syscall return value. Low half is
336 the entire CR, from which we need to extract CR0.SO. */
337 /* VG_(printf)("word64 = 0x%llx\n", word64); */
338 res = VG_(mk_SysRes_ppc32_linux)(
339 /*val*/(UInt)(word64 >> 32),
340 /*errflag*/ (((UInt)word64) >> 28) & 1
341 );
342
343 VG_(sigprocmask)(VKI_SIG_SETMASK, &savedmask, NULL);
344
345 out:
346 if (sr_isError(res)) {
347 /* clone failed */
348 VG_(cleanup_thread)(&ctst->arch);
349 ctst->status = VgTs_Empty;
350 /* oops. Better tell the tool the thread exited in a hurry :-) */
351 VG_TRACK( pre_thread_ll_exit, ctid );
352 }
353
354 return res;
355 }
356
357
358
359 /* ---------------------------------------------------------------------
360 More thread stuff
361 ------------------------------------------------------------------ */
362
VG_(cleanup_thread)363 void VG_(cleanup_thread) ( ThreadArchState* arch )
364 {
365 }
366
setup_child(ThreadArchState * child,ThreadArchState * parent)367 void setup_child ( /*OUT*/ ThreadArchState *child,
368 /*IN*/ ThreadArchState *parent )
369 {
370 /* We inherit our parent's guest state. */
371 child->vex = parent->vex;
372 child->vex_shadow1 = parent->vex_shadow1;
373 child->vex_shadow2 = parent->vex_shadow2;
374 }
375
376
377 /* ---------------------------------------------------------------------
378 PRE/POST wrappers for ppc32/Linux-specific syscalls
379 ------------------------------------------------------------------ */
380
381 #define PRE(name) DEFN_PRE_TEMPLATE(ppc32_linux, name)
382 #define POST(name) DEFN_POST_TEMPLATE(ppc32_linux, name)
383
384 /* Add prototypes for the wrappers declared here, so that gcc doesn't
385 harass us for not having prototypes. Really this is a kludge --
386 the right thing to do is to make these wrappers 'static' since they
387 aren't visible outside this file, but that requires even more macro
388 magic. */
389
390 DECL_TEMPLATE(ppc32_linux, sys_mmap);
391 DECL_TEMPLATE(ppc32_linux, sys_mmap2);
392 DECL_TEMPLATE(ppc32_linux, sys_stat64);
393 DECL_TEMPLATE(ppc32_linux, sys_lstat64);
394 DECL_TEMPLATE(ppc32_linux, sys_fstatat64);
395 DECL_TEMPLATE(ppc32_linux, sys_fstat64);
396 DECL_TEMPLATE(ppc32_linux, sys_clone);
397 DECL_TEMPLATE(ppc32_linux, sys_sigreturn);
398 DECL_TEMPLATE(ppc32_linux, sys_rt_sigreturn);
399 DECL_TEMPLATE(ppc32_linux, sys_sigsuspend);
400 DECL_TEMPLATE(ppc32_linux, sys_spu_create);
401 DECL_TEMPLATE(ppc32_linux, sys_spu_run);
402
PRE(sys_mmap)403 PRE(sys_mmap)
404 {
405 SysRes r;
406
407 PRINT("sys_mmap ( %#lx, %lu, %lu, %lu, %lu, %lu )",
408 ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 );
409 PRE_REG_READ6(long, "mmap",
410 unsigned long, start, unsigned long, length,
411 unsigned long, prot, unsigned long, flags,
412 unsigned long, fd, unsigned long, offset);
413
414 r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5,
415 (Off64T)ARG6 );
416 SET_STATUS_from_SysRes(r);
417 }
418
PRE(sys_mmap2)419 PRE(sys_mmap2)
420 {
421 SysRes r;
422
423 // Exactly like old_mmap() except:
424 // - the file offset is specified in 4K units rather than bytes,
425 // so that it can be used for files bigger than 2^32 bytes.
426 PRINT("sys_mmap2 ( %#lx, %lu, %lu, %lu, %lu, %lu )",
427 ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 );
428 PRE_REG_READ6(long, "mmap2",
429 unsigned long, start, unsigned long, length,
430 unsigned long, prot, unsigned long, flags,
431 unsigned long, fd, unsigned long, offset);
432
433 r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5,
434 4096 * (Off64T)ARG6 );
435 SET_STATUS_from_SysRes(r);
436 }
437
438 // XXX: lstat64/fstat64/stat64 are generic, but not necessarily
439 // applicable to every architecture -- I think only to 32-bit archs.
440 // We're going to need something like linux/core_os32.h for such
441 // things, eventually, I think. --njn
PRE(sys_stat64)442 PRE(sys_stat64)
443 {
444 PRINT("sys_stat64 ( %#lx, %#lx )",ARG1,ARG2);
445 PRE_REG_READ2(long, "stat64", char *, file_name, struct stat64 *, buf);
446 PRE_MEM_RASCIIZ( "stat64(file_name)", ARG1 );
447 PRE_MEM_WRITE( "stat64(buf)", ARG2, sizeof(struct vki_stat64) );
448 }
449
POST(sys_stat64)450 POST(sys_stat64)
451 {
452 POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
453 }
454
PRE(sys_lstat64)455 PRE(sys_lstat64)
456 {
457 PRINT("sys_lstat64 ( %#lx(%s), %#lx )", ARG1, (HChar*)ARG1, ARG2);
458 PRE_REG_READ2(long, "lstat64", char *, file_name, struct stat64 *, buf);
459 PRE_MEM_RASCIIZ( "lstat64(file_name)", ARG1 );
460 PRE_MEM_WRITE( "lstat64(buf)", ARG2, sizeof(struct vki_stat64) );
461 }
462
POST(sys_lstat64)463 POST(sys_lstat64)
464 {
465 vg_assert(SUCCESS);
466 if (RES == 0) {
467 POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
468 }
469 }
470
PRE(sys_fstatat64)471 PRE(sys_fstatat64)
472 {
473 PRINT("sys_fstatat64 ( %ld, %#lx(%s), %#lx )", SARG1, ARG2, (HChar*)ARG2,
474 ARG3);
475 PRE_REG_READ3(long, "fstatat64",
476 int, dfd, char *, file_name, struct stat64 *, buf);
477 PRE_MEM_RASCIIZ( "fstatat64(file_name)", ARG2 );
478 PRE_MEM_WRITE( "fstatat64(buf)", ARG3, sizeof(struct vki_stat64) );
479 }
480
POST(sys_fstatat64)481 POST(sys_fstatat64)
482 {
483 POST_MEM_WRITE( ARG3, sizeof(struct vki_stat64) );
484 }
485
PRE(sys_fstat64)486 PRE(sys_fstat64)
487 {
488 PRINT("sys_fstat64 ( %lu, %#lx )", ARG1, ARG2);
489 PRE_REG_READ2(long, "fstat64", unsigned long, fd, struct stat64 *, buf);
490 PRE_MEM_WRITE( "fstat64(buf)", ARG2, sizeof(struct vki_stat64) );
491 }
492
POST(sys_fstat64)493 POST(sys_fstat64)
494 {
495 POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
496 }
497
498
499
500 //.. PRE(old_select, MayBlock)
501 //.. {
502 //.. /* struct sel_arg_struct {
503 //.. unsigned long n;
504 //.. fd_set *inp, *outp, *exp;
505 //.. struct timeval *tvp;
506 //.. };
507 //.. */
508 //.. PRE_REG_READ1(long, "old_select", struct sel_arg_struct *, args);
509 //.. PRE_MEM_READ( "old_select(args)", ARG1, 5*sizeof(UWord) );
510 //..
511 //.. {
512 //.. UInt* arg_struct = (UInt*)ARG1;
513 //.. UInt a1, a2, a3, a4, a5;
514 //..
515 //.. a1 = arg_struct[0];
516 //.. a2 = arg_struct[1];
517 //.. a3 = arg_struct[2];
518 //.. a4 = arg_struct[3];
519 //.. a5 = arg_struct[4];
520 //..
521 //.. PRINT("old_select ( %d, %p, %p, %p, %p )", a1,a2,a3,a4,a5);
522 //.. if (a2 != (Addr)NULL)
523 //.. PRE_MEM_READ( "old_select(readfds)", a2, a1/8 /* __FD_SETSIZE/8 */ );
524 //.. if (a3 != (Addr)NULL)
525 //.. PRE_MEM_READ( "old_select(writefds)", a3, a1/8 /* __FD_SETSIZE/8 */ );
526 //.. if (a4 != (Addr)NULL)
527 //.. PRE_MEM_READ( "old_select(exceptfds)", a4, a1/8 /* __FD_SETSIZE/8 */ );
528 //.. if (a5 != (Addr)NULL)
529 //.. PRE_MEM_READ( "old_select(timeout)", a5, sizeof(struct vki_timeval) );
530 //.. }
531 //.. }
532
PRE(sys_clone)533 PRE(sys_clone)
534 {
535 UInt cloneflags;
536
537 PRINT("sys_clone ( %lx, %#lx, %#lx, %#lx, %#lx )",ARG1,ARG2,ARG3,ARG4,ARG5);
538 PRE_REG_READ5(int, "clone",
539 unsigned long, flags,
540 void *, child_stack,
541 int *, parent_tidptr,
542 void *, child_tls,
543 int *, child_tidptr);
544
545 if (ARG1 & VKI_CLONE_PARENT_SETTID) {
546 PRE_MEM_WRITE("clone(parent_tidptr)", ARG3, sizeof(Int));
547 if (!VG_(am_is_valid_for_client)(ARG3, sizeof(Int),
548 VKI_PROT_WRITE)) {
549 SET_STATUS_Failure( VKI_EFAULT );
550 return;
551 }
552 }
553 if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID)) {
554 PRE_MEM_WRITE("clone(child_tidptr)", ARG5, sizeof(Int));
555 if (!VG_(am_is_valid_for_client)(ARG5, sizeof(Int),
556 VKI_PROT_WRITE)) {
557 SET_STATUS_Failure( VKI_EFAULT );
558 return;
559 }
560 }
561
562 cloneflags = ARG1;
563
564 if (!ML_(client_signal_OK)(ARG1 & VKI_CSIGNAL)) {
565 SET_STATUS_Failure( VKI_EINVAL );
566 return;
567 }
568
569 /* Only look at the flags we really care about */
570 switch (cloneflags & (VKI_CLONE_VM | VKI_CLONE_FS
571 | VKI_CLONE_FILES | VKI_CLONE_VFORK)) {
572 case VKI_CLONE_VM | VKI_CLONE_FS | VKI_CLONE_FILES:
573 /* thread creation */
574 SET_STATUS_from_SysRes(
575 do_clone(tid,
576 ARG1, /* flags */
577 (Addr)ARG2, /* child SP */
578 (Int *)ARG3, /* parent_tidptr */
579 (Int *)ARG5, /* child_tidptr */
580 (Addr)ARG4)); /* child_tls */
581 break;
582
583 case VKI_CLONE_VFORK | VKI_CLONE_VM: /* vfork */
584 /* FALLTHROUGH - assume vfork == fork */
585 cloneflags &= ~(VKI_CLONE_VFORK | VKI_CLONE_VM);
586
587 case 0: /* plain fork */
588 SET_STATUS_from_SysRes(
589 ML_(do_fork_clone)(tid,
590 cloneflags, /* flags */
591 (Int *)ARG3, /* parent_tidptr */
592 (Int *)ARG5)); /* child_tidptr */
593 break;
594
595 default:
596 /* should we just ENOSYS? */
597 VG_(message)(Vg_UserMsg, "Unsupported clone() flags: 0x%lx\n", ARG1);
598 VG_(message)(Vg_UserMsg, "\n");
599 VG_(message)(Vg_UserMsg, "The only supported clone() uses are:\n");
600 VG_(message)(Vg_UserMsg, " - via a threads library (LinuxThreads or NPTL)\n");
601 VG_(message)(Vg_UserMsg, " - via the implementation of fork or vfork\n");
602 VG_(unimplemented)
603 ("Valgrind does not support general clone().");
604 }
605
606 if (SUCCESS) {
607 if (ARG1 & VKI_CLONE_PARENT_SETTID)
608 POST_MEM_WRITE(ARG3, sizeof(Int));
609 if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID))
610 POST_MEM_WRITE(ARG5, sizeof(Int));
611
612 /* Thread creation was successful; let the child have the chance
613 to run */
614 *flags |= SfYieldAfter;
615 }
616 }
617
PRE(sys_sigreturn)618 PRE(sys_sigreturn)
619 {
620 /* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
621 an explanation of what follows. */
622
623 //ThreadState* tst;
624 PRINT("sys_sigreturn ( )");
625
626 vg_assert(VG_(is_valid_tid)(tid));
627 vg_assert(tid >= 1 && tid < VG_N_THREADS);
628 vg_assert(VG_(is_running_thread)(tid));
629
630 ///* Adjust esp to point to start of frame; skip back up over
631 // sigreturn sequence's "popl %eax" and handler ret addr */
632 //tst = VG_(get_ThreadState)(tid);
633 //tst->arch.vex.guest_ESP -= sizeof(Addr)+sizeof(Word);
634 // Should we do something equivalent on ppc32? Who knows.
635
636 ///* This is only so that the EIP is (might be) useful to report if
637 // something goes wrong in the sigreturn */
638 //ML_(fixup_guest_state_to_restart_syscall)(&tst->arch);
639 // Should we do something equivalent on ppc32? Who knows.
640
641 /* Restore register state from frame and remove it */
642 VG_(sigframe_destroy)(tid, False);
643
644 /* Tell the driver not to update the guest state with the "result",
645 and set a bogus result to keep it happy. */
646 *flags |= SfNoWriteResult;
647 SET_STATUS_Success(0);
648
649 /* Check to see if any signals arose as a result of this. */
650 *flags |= SfPollAfter;
651 }
652
PRE(sys_rt_sigreturn)653 PRE(sys_rt_sigreturn)
654 {
655 /* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
656 an explanation of what follows. */
657
658 //ThreadState* tst;
659 PRINT("rt_sigreturn ( )");
660
661 vg_assert(VG_(is_valid_tid)(tid));
662 vg_assert(tid >= 1 && tid < VG_N_THREADS);
663 vg_assert(VG_(is_running_thread)(tid));
664
665 ///* Adjust esp to point to start of frame; skip back up over handler
666 // ret addr */
667 //tst = VG_(get_ThreadState)(tid);
668 //tst->arch.vex.guest_ESP -= sizeof(Addr);
669 // Should we do something equivalent on ppc32? Who knows.
670
671 ///* This is only so that the EIP is (might be) useful to report if
672 // something goes wrong in the sigreturn */
673 //ML_(fixup_guest_state_to_restart_syscall)(&tst->arch);
674 // Should we do something equivalent on ppc32? Who knows.
675
676 /* Restore register state from frame and remove it */
677 VG_(sigframe_destroy)(tid, True);
678
679 /* Tell the driver not to update the guest state with the "result",
680 and set a bogus result to keep it happy. */
681 *flags |= SfNoWriteResult;
682 SET_STATUS_Success(0);
683
684 /* Check to see if any signals arose as a result of this. */
685 *flags |= SfPollAfter;
686 }
687
688
689 //.. PRE(sys_modify_ldt, Special)
690 //.. {
691 //.. PRINT("sys_modify_ldt ( %d, %p, %d )", ARG1,ARG2,ARG3);
692 //.. PRE_REG_READ3(int, "modify_ldt", int, func, void *, ptr,
693 //.. unsigned long, bytecount);
694 //..
695 //.. if (ARG1 == 0) {
696 //.. /* read the LDT into ptr */
697 //.. PRE_MEM_WRITE( "modify_ldt(ptr)", ARG2, ARG3 );
698 //.. }
699 //.. if (ARG1 == 1 || ARG1 == 0x11) {
700 //.. /* write the LDT with the entry pointed at by ptr */
701 //.. PRE_MEM_READ( "modify_ldt(ptr)", ARG2, sizeof(vki_modify_ldt_t) );
702 //.. }
703 //.. /* "do" the syscall ourselves; the kernel never sees it */
704 //.. SET_RESULT( VG_(sys_modify_ldt)( tid, ARG1, (void*)ARG2, ARG3 ) );
705 //..
706 //.. if (ARG1 == 0 && !VG_(is_kerror)(RES) && RES > 0) {
707 //.. POST_MEM_WRITE( ARG2, RES );
708 //.. }
709 //.. }
710
711 //.. PRE(sys_set_thread_area, Special)
712 //.. {
713 //.. PRINT("sys_set_thread_area ( %p )", ARG1);
714 //.. PRE_REG_READ1(int, "set_thread_area", struct user_desc *, u_info)
715 //.. PRE_MEM_READ( "set_thread_area(u_info)", ARG1, sizeof(vki_modify_ldt_t) );
716 //..
717 //.. /* "do" the syscall ourselves; the kernel never sees it */
718 //.. SET_RESULT( VG_(sys_set_thread_area)( tid, (void *)ARG1 ) );
719 //.. }
720
721 //.. PRE(sys_get_thread_area, Special)
722 //.. {
723 //.. PRINT("sys_get_thread_area ( %p )", ARG1);
724 //.. PRE_REG_READ1(int, "get_thread_area", struct user_desc *, u_info)
725 //.. PRE_MEM_WRITE( "get_thread_area(u_info)", ARG1, sizeof(vki_modify_ldt_t) );
726 //..
727 //.. /* "do" the syscall ourselves; the kernel never sees it */
728 //.. SET_RESULT( VG_(sys_get_thread_area)( tid, (void *)ARG1 ) );
729 //..
730 //.. if (!VG_(is_kerror)(RES)) {
731 //.. POST_MEM_WRITE( ARG1, sizeof(vki_modify_ldt_t) );
732 //.. }
733 //.. }
734
735 //.. // Parts of this are ppc32-specific, but the *PEEK* cases are generic.
736 //.. // XXX: Why is the memory pointed to by ARG3 never checked?
737 //.. PRE(sys_ptrace, 0)
738 //.. {
739 //.. PRINT("sys_ptrace ( %d, %d, %p, %p )", ARG1,ARG2,ARG3,ARG4);
740 //.. PRE_REG_READ4(int, "ptrace",
741 //.. long, request, long, pid, long, addr, long, data);
742 //.. switch (ARG1) {
743 //.. case VKI_PTRACE_PEEKTEXT:
744 //.. case VKI_PTRACE_PEEKDATA:
745 //.. case VKI_PTRACE_PEEKUSR:
746 //.. PRE_MEM_WRITE( "ptrace(peek)", ARG4,
747 //.. sizeof (long));
748 //.. break;
749 //.. case VKI_PTRACE_GETREGS:
750 //.. PRE_MEM_WRITE( "ptrace(getregs)", ARG4,
751 //.. sizeof (struct vki_user_regs_struct));
752 //.. break;
753 //.. case VKI_PTRACE_GETFPREGS:
754 //.. PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4,
755 //.. sizeof (struct vki_user_i387_struct));
756 //.. break;
757 //.. case VKI_PTRACE_GETFPXREGS:
758 //.. PRE_MEM_WRITE( "ptrace(getfpxregs)", ARG4,
759 //.. sizeof(struct vki_user_fxsr_struct) );
760 //.. break;
761 //.. case VKI_PTRACE_SETREGS:
762 //.. PRE_MEM_READ( "ptrace(setregs)", ARG4,
763 //.. sizeof (struct vki_user_regs_struct));
764 //.. break;
765 //.. case VKI_PTRACE_SETFPREGS:
766 //.. PRE_MEM_READ( "ptrace(setfpregs)", ARG4,
767 //.. sizeof (struct vki_user_i387_struct));
768 //.. break;
769 //.. case VKI_PTRACE_SETFPXREGS:
770 //.. PRE_MEM_READ( "ptrace(setfpxregs)", ARG4,
771 //.. sizeof(struct vki_user_fxsr_struct) );
772 //.. break;
773 //.. default:
774 //.. break;
775 //.. }
776 //.. }
777
778 //.. POST(sys_ptrace)
779 //.. {
780 //.. switch (ARG1) {
781 //.. case VKI_PTRACE_PEEKTEXT:
782 //.. case VKI_PTRACE_PEEKDATA:
783 //.. case VKI_PTRACE_PEEKUSR:
784 //.. POST_MEM_WRITE( ARG4, sizeof (long));
785 //.. break;
786 //.. case VKI_PTRACE_GETREGS:
787 //.. POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct));
788 //.. break;
789 //.. case VKI_PTRACE_GETFPREGS:
790 //.. POST_MEM_WRITE( ARG4, sizeof (struct vki_user_i387_struct));
791 //.. break;
792 //.. case VKI_PTRACE_GETFPXREGS:
793 //.. POST_MEM_WRITE( ARG4, sizeof(struct vki_user_fxsr_struct) );
794 //.. break;
795 //.. default:
796 //.. break;
797 //.. }
798 //.. }
799
800 /* NB: This is an almost identical clone of versions for x86-linux and
801 arm-linux, which are themselves literally identical. */
PRE(sys_sigsuspend)802 PRE(sys_sigsuspend)
803 {
804 /* The C library interface to sigsuspend just takes a pointer to
805 a signal mask but this system call only takes the first word of
806 the signal mask as an argument so only 32 signals are supported.
807
808 In fact glibc normally uses rt_sigsuspend if it is available as
809 that takes a pointer to the signal mask so supports more signals.
810 */
811 *flags |= SfMayBlock;
812 PRINT("sys_sigsuspend ( %lu )", ARG1 );
813 PRE_REG_READ1(int, "sigsuspend", vki_old_sigset_t, mask);
814 }
815
PRE(sys_spu_create)816 PRE(sys_spu_create)
817 {
818 PRE_MEM_RASCIIZ("stat64(filename)", ARG1);
819 }
POST(sys_spu_create)820 POST(sys_spu_create)
821 {
822 vg_assert(SUCCESS);
823 }
824
PRE(sys_spu_run)825 PRE(sys_spu_run)
826 {
827 *flags |= SfMayBlock;
828 if (ARG2 != 0)
829 PRE_MEM_WRITE("npc", ARG2, sizeof(unsigned int));
830 PRE_MEM_READ("event", ARG3, sizeof(unsigned int));
831 }
POST(sys_spu_run)832 POST(sys_spu_run)
833 {
834 if (ARG2 != 0)
835 POST_MEM_WRITE(ARG2, sizeof(unsigned int));
836 }
837
838 #undef PRE
839 #undef POST
840
841 /* ---------------------------------------------------------------------
842 The ppc32/Linux syscall table
843 ------------------------------------------------------------------ */
844
845 /* Add an ppc32-linux specific wrapper to a syscall table. */
846 #define PLAX_(sysno, name) WRAPPER_ENTRY_X_(ppc32_linux, sysno, name)
847 #define PLAXY(sysno, name) WRAPPER_ENTRY_XY(ppc32_linux, sysno, name)
848
849 // This table maps from __NR_xxx syscall numbers (from
850 // linux/include/asm-ppc/unistd.h) to the appropriate PRE/POST sys_foo()
851 // wrappers on ppc32 (as per sys_call_table in linux/arch/ppc/kernel/entry.S).
852 //
853 // For those syscalls not handled by Valgrind, the annotation indicate its
854 // arch/OS combination, eg. */* (generic), */Linux (Linux only), ?/?
855 // (unknown).
856
857 static SyscallTableEntry syscall_table[] = {
858 //.. (restart_syscall) // 0
859 GENX_(__NR_exit, sys_exit), // 1
860 GENX_(__NR_fork, sys_fork), // 2
861 GENXY(__NR_read, sys_read), // 3
862 GENX_(__NR_write, sys_write), // 4
863
864 GENXY(__NR_open, sys_open), // 5
865 GENXY(__NR_close, sys_close), // 6
866 GENXY(__NR_waitpid, sys_waitpid), // 7
867 GENXY(__NR_creat, sys_creat), // 8
868 GENX_(__NR_link, sys_link), // 9
869
870 GENX_(__NR_unlink, sys_unlink), // 10
871 GENX_(__NR_execve, sys_execve), // 11
872 GENX_(__NR_chdir, sys_chdir), // 12
873 GENXY(__NR_time, sys_time), // 13
874 GENX_(__NR_mknod, sys_mknod), // 14
875 //..
876 GENX_(__NR_chmod, sys_chmod), // 15
877 GENX_(__NR_lchown, sys_lchown), // 16 ## P
878 //.. GENX_(__NR_break, sys_ni_syscall), // 17
879 //.. // (__NR_oldstat, sys_stat), // 18 (obsolete)
880 LINX_(__NR_lseek, sys_lseek), // 19
881 //..
882 GENX_(__NR_getpid, sys_getpid), // 20
883 LINX_(__NR_mount, sys_mount), // 21
884 LINX_(__NR_umount, sys_oldumount), // 22
885 GENX_(__NR_setuid, sys_setuid), // 23 ## P
886 GENX_(__NR_getuid, sys_getuid), // 24 ## P
887 //..
888 //.. // (__NR_stime, sys_stime), // 25 * (SVr4,SVID,X/OPEN)
889 //.. PLAXY(__NR_ptrace, sys_ptrace), // 26
890 GENX_(__NR_alarm, sys_alarm), // 27
891 //.. // (__NR_oldfstat, sys_fstat), // 28 * L -- obsolete
892 GENX_(__NR_pause, sys_pause), // 29
893 //..
894 LINX_(__NR_utime, sys_utime), // 30
895 //.. GENX_(__NR_stty, sys_ni_syscall), // 31
896 //.. GENX_(__NR_gtty, sys_ni_syscall), // 32
897 GENX_(__NR_access, sys_access), // 33
898 //.. GENX_(__NR_nice, sys_nice), // 34
899 //..
900 //.. GENX_(__NR_ftime, sys_ni_syscall), // 35
901 GENX_(__NR_sync, sys_sync), // 36
902 GENX_(__NR_kill, sys_kill), // 37
903 GENX_(__NR_rename, sys_rename), // 38
904 GENX_(__NR_mkdir, sys_mkdir), // 39
905
906 GENX_(__NR_rmdir, sys_rmdir), // 40
907 GENXY(__NR_dup, sys_dup), // 41
908 LINXY(__NR_pipe, sys_pipe), // 42
909 GENXY(__NR_times, sys_times), // 43
910 //.. GENX_(__NR_prof, sys_ni_syscall), // 44
911 //..
912 GENX_(__NR_brk, sys_brk), // 45
913 GENX_(__NR_setgid, sys_setgid), // 46
914 GENX_(__NR_getgid, sys_getgid), // 47
915 //.. // (__NR_signal, sys_signal), // 48 */* (ANSI C)
916 GENX_(__NR_geteuid, sys_geteuid), // 49
917
918 GENX_(__NR_getegid, sys_getegid), // 50
919 //.. GENX_(__NR_acct, sys_acct), // 51
920 LINX_(__NR_umount2, sys_umount), // 52
921 //.. GENX_(__NR_lock, sys_ni_syscall), // 53
922 LINXY(__NR_ioctl, sys_ioctl), // 54
923 //..
924 LINXY(__NR_fcntl, sys_fcntl), // 55
925 //.. GENX_(__NR_mpx, sys_ni_syscall), // 56
926 GENX_(__NR_setpgid, sys_setpgid), // 57
927 //.. GENX_(__NR_ulimit, sys_ni_syscall), // 58
928 //.. // (__NR_oldolduname, sys_olduname), // 59 Linux -- obsolete
929
930 GENX_(__NR_umask, sys_umask), // 60
931 GENX_(__NR_chroot, sys_chroot), // 61
932 //.. // (__NR_ustat, sys_ustat) // 62 SVr4 -- deprecated
933 GENXY(__NR_dup2, sys_dup2), // 63
934 GENX_(__NR_getppid, sys_getppid), // 64
935
936 GENX_(__NR_getpgrp, sys_getpgrp), // 65
937 GENX_(__NR_setsid, sys_setsid), // 66
938 LINXY(__NR_sigaction, sys_sigaction), // 67
939 //.. // (__NR_sgetmask, sys_sgetmask), // 68 */* (ANSI C)
940 //.. // (__NR_ssetmask, sys_ssetmask), // 69 */* (ANSI C)
941 //..
942 GENX_(__NR_setreuid, sys_setreuid), // 70
943 GENX_(__NR_setregid, sys_setregid), // 71
944 PLAX_(__NR_sigsuspend, sys_sigsuspend), // 72
945 LINXY(__NR_sigpending, sys_sigpending), // 73
946 //.. // (__NR_sethostname, sys_sethostname), // 74 */*
947 //..
948 GENX_(__NR_setrlimit, sys_setrlimit), // 75
949 //.. GENXY(__NR_getrlimit, sys_old_getrlimit), // 76
950 GENXY(__NR_getrusage, sys_getrusage), // 77
951 GENXY(__NR_gettimeofday, sys_gettimeofday), // 78
952 //.. GENX_(__NR_settimeofday, sys_settimeofday), // 79
953 //..
954 GENXY(__NR_getgroups, sys_getgroups), // 80
955 GENX_(__NR_setgroups, sys_setgroups), // 81
956 //.. PLAX_(__NR_select, old_select), // 82
957 GENX_(__NR_symlink, sys_symlink), // 83
958 //.. // (__NR_oldlstat, sys_lstat), // 84 -- obsolete
959 //..
960 GENX_(__NR_readlink, sys_readlink), // 85
961 //.. // (__NR_uselib, sys_uselib), // 86 */Linux
962 //.. // (__NR_swapon, sys_swapon), // 87 */Linux
963 //.. // (__NR_reboot, sys_reboot), // 88 */Linux
964 //.. // (__NR_readdir, old_readdir), // 89 -- superseded
965
966 PLAX_(__NR_mmap, sys_mmap), // 90
967 GENXY(__NR_munmap, sys_munmap), // 91
968 GENX_(__NR_truncate, sys_truncate), // 92
969 GENX_(__NR_ftruncate, sys_ftruncate), // 93
970 GENX_(__NR_fchmod, sys_fchmod), // 94
971
972 GENX_(__NR_fchown, sys_fchown), // 95
973 GENX_(__NR_getpriority, sys_getpriority), // 96
974 GENX_(__NR_setpriority, sys_setpriority), // 97
975 //.. GENX_(__NR_profil, sys_ni_syscall), // 98
976 GENXY(__NR_statfs, sys_statfs), // 99
977 //..
978 GENXY(__NR_fstatfs, sys_fstatfs), // 100
979 //.. LINX_(__NR_ioperm, sys_ioperm), // 101
980 LINXY(__NR_socketcall, sys_socketcall), // 102
981 LINXY(__NR_syslog, sys_syslog), // 103
982 GENXY(__NR_setitimer, sys_setitimer), // 104
983
984 GENXY(__NR_getitimer, sys_getitimer), // 105
985 GENXY(__NR_stat, sys_newstat), // 106
986 GENXY(__NR_lstat, sys_newlstat), // 107
987 GENXY(__NR_fstat, sys_newfstat), // 108
988 //.. // (__NR_olduname, sys_uname), // 109 -- obsolete
989 //..
990 //.. GENX_(__NR_iopl, sys_iopl), // 110
991 LINX_(__NR_vhangup, sys_vhangup), // 111
992 //.. GENX_(__NR_idle, sys_ni_syscall), // 112
993 //.. // (__NR_vm86old, sys_vm86old), // 113 x86/Linux-only
994 GENXY(__NR_wait4, sys_wait4), // 114
995 //..
996 //.. // (__NR_swapoff, sys_swapoff), // 115 */Linux
997 LINXY(__NR_sysinfo, sys_sysinfo), // 116
998 LINXY(__NR_ipc, sys_ipc), // 117
999 GENX_(__NR_fsync, sys_fsync), // 118
1000 PLAX_(__NR_sigreturn, sys_sigreturn), // 119 ?/Linux
1001 //..
1002 PLAX_(__NR_clone, sys_clone), // 120
1003 //.. // (__NR_setdomainname, sys_setdomainname), // 121 */*(?)
1004 GENXY(__NR_uname, sys_newuname), // 122
1005 //.. PLAX_(__NR_modify_ldt, sys_modify_ldt), // 123
1006 LINXY(__NR_adjtimex, sys_adjtimex), // 124
1007
1008 GENXY(__NR_mprotect, sys_mprotect), // 125
1009 LINXY(__NR_sigprocmask, sys_sigprocmask), // 126
1010 GENX_(__NR_create_module, sys_ni_syscall), // 127
1011 LINX_(__NR_init_module, sys_init_module), // 128
1012 LINX_(__NR_delete_module, sys_delete_module), // 129
1013 //..
1014 //.. // Nb: get_kernel_syms() was removed 2.4-->2.6
1015 //.. GENX_(__NR_get_kernel_syms, sys_ni_syscall), // 130
1016 //.. LINX_(__NR_quotactl, sys_quotactl), // 131
1017 GENX_(__NR_getpgid, sys_getpgid), // 132
1018 GENX_(__NR_fchdir, sys_fchdir), // 133
1019 //.. // (__NR_bdflush, sys_bdflush), // 134 */Linux
1020 //..
1021 //.. // (__NR_sysfs, sys_sysfs), // 135 SVr4
1022 LINX_(__NR_personality, sys_personality), // 136
1023 //.. GENX_(__NR_afs_syscall, sys_ni_syscall), // 137
1024 LINX_(__NR_setfsuid, sys_setfsuid), // 138
1025 LINX_(__NR_setfsgid, sys_setfsgid), // 139
1026
1027 LINXY(__NR__llseek, sys_llseek), // 140
1028 GENXY(__NR_getdents, sys_getdents), // 141
1029 GENX_(__NR__newselect, sys_select), // 142
1030 GENX_(__NR_flock, sys_flock), // 143
1031 GENX_(__NR_msync, sys_msync), // 144
1032 //..
1033 GENXY(__NR_readv, sys_readv), // 145
1034 GENX_(__NR_writev, sys_writev), // 146
1035 GENX_(__NR_getsid, sys_getsid), // 147
1036 GENX_(__NR_fdatasync, sys_fdatasync), // 148
1037 LINXY(__NR__sysctl, sys_sysctl), // 149
1038 //..
1039 GENX_(__NR_mlock, sys_mlock), // 150
1040 GENX_(__NR_munlock, sys_munlock), // 151
1041 GENX_(__NR_mlockall, sys_mlockall), // 152
1042 LINX_(__NR_munlockall, sys_munlockall), // 153
1043 LINXY(__NR_sched_setparam, sys_sched_setparam), // 154
1044 //..
1045 LINXY(__NR_sched_getparam, sys_sched_getparam), // 155
1046 LINX_(__NR_sched_setscheduler, sys_sched_setscheduler), // 156
1047 LINX_(__NR_sched_getscheduler, sys_sched_getscheduler), // 157
1048 LINX_(__NR_sched_yield, sys_sched_yield), // 158
1049 LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max),// 159
1050
1051 LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min),// 160
1052 LINXY(__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 161
1053 GENXY(__NR_nanosleep, sys_nanosleep), // 162
1054 GENX_(__NR_mremap, sys_mremap), // 163
1055 LINX_(__NR_setresuid, sys_setresuid), // 164
1056
1057 LINXY(__NR_getresuid, sys_getresuid), // 165
1058
1059 //.. GENX_(__NR_query_module, sys_ni_syscall), // 166
1060 GENXY(__NR_poll, sys_poll), // 167
1061 //.. // (__NR_nfsservctl, sys_nfsservctl), // 168 */Linux
1062 //..
1063 LINX_(__NR_setresgid, sys_setresgid), // 169
1064 LINXY(__NR_getresgid, sys_getresgid), // 170
1065 LINXY(__NR_prctl, sys_prctl), // 171
1066 PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 172
1067 LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 173
1068
1069 LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 174
1070 LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 175
1071 LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait), // 176
1072 LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo), // 177
1073 LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 178
1074
1075 GENXY(__NR_pread64, sys_pread64), // 179
1076 GENX_(__NR_pwrite64, sys_pwrite64), // 180
1077 GENX_(__NR_chown, sys_chown), // 181
1078 GENXY(__NR_getcwd, sys_getcwd), // 182
1079 LINXY(__NR_capget, sys_capget), // 183
1080 LINX_(__NR_capset, sys_capset), // 184
1081 GENXY(__NR_sigaltstack, sys_sigaltstack), // 185
1082 LINXY(__NR_sendfile, sys_sendfile), // 186
1083 //.. GENXY(__NR_getpmsg, sys_getpmsg), // 187
1084 //.. GENX_(__NR_putpmsg, sys_putpmsg), // 188
1085
1086 // Nb: we treat vfork as fork
1087 GENX_(__NR_vfork, sys_fork), // 189
1088 GENXY(__NR_ugetrlimit, sys_getrlimit), // 190
1089 LINX_(__NR_readahead, sys_readahead), // 191 */Linux
1090 PLAX_(__NR_mmap2, sys_mmap2), // 192
1091 GENX_(__NR_truncate64, sys_truncate64), // 193
1092 GENX_(__NR_ftruncate64, sys_ftruncate64), // 194
1093 //..
1094
1095 PLAXY(__NR_stat64, sys_stat64), // 195
1096 PLAXY(__NR_lstat64, sys_lstat64), // 196
1097 PLAXY(__NR_fstat64, sys_fstat64), // 197
1098
1099 // __NR_pciconfig_read // 198
1100 // __NR_pciconfig_write // 199
1101 // __NR_pciconfig_iobase // 200
1102 // __NR_multiplexer // 201
1103
1104 GENXY(__NR_getdents64, sys_getdents64), // 202
1105 LINX_(__NR_pivot_root, sys_pivot_root), // 203
1106 LINXY(__NR_fcntl64, sys_fcntl64), // 204
1107 GENX_(__NR_madvise, sys_madvise), // 205
1108 GENXY(__NR_mincore, sys_mincore), // 206
1109 LINX_(__NR_gettid, sys_gettid), // 207
1110 //.. LINX_(__NR_tkill, sys_tkill), // 208 */Linux
1111 LINX_(__NR_setxattr, sys_setxattr), // 209
1112 LINX_(__NR_lsetxattr, sys_lsetxattr), // 210
1113 LINX_(__NR_fsetxattr, sys_fsetxattr), // 211
1114 LINXY(__NR_getxattr, sys_getxattr), // 212
1115 LINXY(__NR_lgetxattr, sys_lgetxattr), // 213
1116 LINXY(__NR_fgetxattr, sys_fgetxattr), // 214
1117 LINXY(__NR_listxattr, sys_listxattr), // 215
1118 LINXY(__NR_llistxattr, sys_llistxattr), // 216
1119 LINXY(__NR_flistxattr, sys_flistxattr), // 217
1120 LINX_(__NR_removexattr, sys_removexattr), // 218
1121 LINX_(__NR_lremovexattr, sys_lremovexattr), // 219
1122 LINX_(__NR_fremovexattr, sys_fremovexattr), // 220
1123
1124 LINXY(__NR_futex, sys_futex), // 221
1125 LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 222
1126 LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 223
1127 /* 224 currently unused */
1128
1129 // __NR_tuxcall // 225
1130
1131 LINXY(__NR_sendfile64, sys_sendfile64), // 226
1132 //..
1133 LINX_(__NR_io_setup, sys_io_setup), // 227
1134 LINX_(__NR_io_destroy, sys_io_destroy), // 228
1135 LINXY(__NR_io_getevents, sys_io_getevents), // 229
1136 LINX_(__NR_io_submit, sys_io_submit), // 230
1137 LINXY(__NR_io_cancel, sys_io_cancel), // 231
1138 //..
1139 LINX_(__NR_set_tid_address, sys_set_tid_address), // 232
1140
1141 LINX_(__NR_fadvise64, sys_fadvise64), // 233 */(Linux?)
1142 LINX_(__NR_exit_group, sys_exit_group), // 234
1143 //.. GENXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 235
1144 LINXY(__NR_epoll_create, sys_epoll_create), // 236
1145 LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 237
1146 LINXY(__NR_epoll_wait, sys_epoll_wait), // 238
1147
1148 //.. // (__NR_remap_file_pages, sys_remap_file_pages), // 239 */Linux
1149 LINXY(__NR_timer_create, sys_timer_create), // 240
1150 LINXY(__NR_timer_settime, sys_timer_settime), // 241
1151 LINXY(__NR_timer_gettime, sys_timer_gettime), // 242
1152 LINX_(__NR_timer_getoverrun, sys_timer_getoverrun), // 243
1153 LINX_(__NR_timer_delete, sys_timer_delete), // 244
1154 LINX_(__NR_clock_settime, sys_clock_settime), // 245
1155 LINXY(__NR_clock_gettime, sys_clock_gettime), // 246
1156 LINXY(__NR_clock_getres, sys_clock_getres), // 247
1157 LINXY(__NR_clock_nanosleep, sys_clock_nanosleep), // 248
1158
1159 // __NR_swapcontext // 249
1160
1161 LINXY(__NR_tgkill, sys_tgkill), // 250 */Linux
1162 //.. GENX_(__NR_utimes, sys_utimes), // 251
1163 GENXY(__NR_statfs64, sys_statfs64), // 252
1164 GENXY(__NR_fstatfs64, sys_fstatfs64), // 253
1165 LINX_(__NR_fadvise64_64, sys_fadvise64_64), // 254 */(Linux?)
1166
1167 // __NR_rtas // 255
1168
1169 /* Number 256 is reserved for sys_debug_setcontext */
1170 /* Number 257 is reserved for vserver */
1171 /* Number 258 is reserved for new sys_remap_file_pages */
1172 LINX_(__NR_mbind, sys_mbind), // 259
1173 LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 260
1174 LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 261
1175
1176 LINXY(__NR_mq_open, sys_mq_open), // 262
1177 LINX_(__NR_mq_unlink, sys_mq_unlink), // 263
1178 LINX_(__NR_mq_timedsend, sys_mq_timedsend), // 264
1179 LINXY(__NR_mq_timedreceive, sys_mq_timedreceive), // 265
1180 LINX_(__NR_mq_notify, sys_mq_notify), // 266
1181 LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // 267
1182 // __NR_kexec_load // 268
1183
1184 /* Number 269 is reserved for sys_add_key */
1185 /* Number 270 is reserved for sys_request_key */
1186 /* Number 271 is reserved for sys_keyctl */
1187 /* Number 272 is reserved for sys_waitid */
1188 LINX_(__NR_ioprio_set, sys_ioprio_set), // 273
1189 LINX_(__NR_ioprio_get, sys_ioprio_get), // 274
1190
1191 LINX_(__NR_inotify_init, sys_inotify_init), // 275
1192 LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 276
1193 LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 277
1194 PLAXY(__NR_spu_run, sys_spu_run), // 278
1195 PLAX_(__NR_spu_create, sys_spu_create), // 279
1196
1197 LINX_(__NR_pselect6, sys_pselect6), // 280
1198 LINXY(__NR_ppoll, sys_ppoll), // 281
1199
1200 LINXY(__NR_openat, sys_openat), // 286
1201 LINX_(__NR_mkdirat, sys_mkdirat), // 287
1202 LINX_(__NR_mknodat, sys_mknodat), // 288
1203 LINX_(__NR_fchownat, sys_fchownat), // 289
1204 LINX_(__NR_futimesat, sys_futimesat), // 290
1205 PLAXY(__NR_fstatat64, sys_fstatat64), // 291
1206 LINX_(__NR_unlinkat, sys_unlinkat), // 292
1207 LINX_(__NR_renameat, sys_renameat), // 293
1208 LINX_(__NR_linkat, sys_linkat), // 294
1209 LINX_(__NR_symlinkat, sys_symlinkat), // 295
1210 LINX_(__NR_readlinkat, sys_readlinkat), // 296
1211 LINX_(__NR_fchmodat, sys_fchmodat), // 297
1212 LINX_(__NR_faccessat, sys_faccessat), // 298
1213 LINX_(__NR_set_robust_list, sys_set_robust_list), // 299
1214 LINXY(__NR_get_robust_list, sys_get_robust_list), // 300
1215 LINXY(__NR_move_pages, sys_move_pages), // 301
1216 LINXY(__NR_getcpu, sys_getcpu), // 302
1217 LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 303
1218 LINX_(__NR_utimensat, sys_utimensat), // 304
1219 LINXY(__NR_signalfd, sys_signalfd), // 305
1220 LINXY(__NR_timerfd_create, sys_timerfd_create), // 306
1221 LINXY(__NR_eventfd, sys_eventfd), // 307
1222 LINX_(__NR_sync_file_range2, sys_sync_file_range2), // 308
1223 LINX_(__NR_fallocate, sys_fallocate), // 309
1224 // LINXY(__NR_subpage_prot, sys_ni_syscall), // 310
1225 LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 311
1226 LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 312
1227 LINXY(__NR_signalfd4, sys_signalfd4), // 313
1228 LINXY(__NR_eventfd2, sys_eventfd2), // 314
1229 LINXY(__NR_epoll_create1, sys_epoll_create1), // 315
1230 LINXY(__NR_dup3, sys_dup3), // 316
1231 LINXY(__NR_pipe2, sys_pipe2), // 317
1232 LINXY(__NR_inotify_init1, sys_inotify_init1), // 318
1233 LINXY(__NR_perf_event_open, sys_perf_event_open), // 319
1234 LINXY(__NR_preadv, sys_preadv), // 320
1235 LINX_(__NR_pwritev, sys_pwritev), // 321
1236 LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 322
1237
1238 LINXY(__NR_socket, sys_socket), // 326
1239 LINX_(__NR_bind, sys_bind), // 327
1240 LINX_(__NR_connect, sys_connect), // 328
1241 LINX_(__NR_listen, sys_listen), // 329
1242 LINXY(__NR_accept, sys_accept), // 330
1243 LINXY(__NR_getsockname, sys_getsockname), // 331
1244 LINXY(__NR_getpeername, sys_getpeername), // 332
1245
1246 LINX_(__NR_send, sys_send), // 334
1247 LINX_(__NR_sendto, sys_sendto), // 335
1248 LINXY(__NR_recv, sys_recv), // 336
1249 LINXY(__NR_recvfrom, sys_recvfrom), // 337
1250 LINX_(__NR_shutdown, sys_shutdown), // 338
1251 LINX_(__NR_setsockopt, sys_setsockopt), // 339
1252
1253 LINXY(__NR_recvmmsg, sys_recvmmsg), // 343
1254 LINXY(__NR_accept4, sys_accept4), // 344
1255
1256 LINX_(__NR_clock_adjtime, sys_clock_adjtime), // 347
1257 LINX_(__NR_syncfs, sys_syncfs), // 348
1258 LINXY(__NR_sendmmsg, sys_sendmmsg), // 349
1259
1260 LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 351
1261 LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 352
1262
1263 LINXY(__NR_getrandom, sys_getrandom), // 359
1264 LINXY(__NR_memfd_create, sys_memfd_create) // 360
1265 };
1266
ML_(get_linux_syscall_entry)1267 SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
1268 {
1269 const UInt syscall_table_size
1270 = sizeof(syscall_table) / sizeof(syscall_table[0]);
1271
1272 /* Is it in the contiguous initial section of the table? */
1273 if (sysno < syscall_table_size) {
1274 SyscallTableEntry* sys = &syscall_table[sysno];
1275 if (sys->before == NULL)
1276 return NULL; /* no entry */
1277 else
1278 return sys;
1279 }
1280
1281 /* Can't find a wrapper */
1282 return NULL;
1283 }
1284
1285 #endif // defined(VGP_ppc32_linux)
1286
1287 /*--------------------------------------------------------------------*/
1288 /*--- end ---*/
1289 /*--------------------------------------------------------------------*/
1290