1
2 /*--------------------------------------------------------------------*/
3 /*--- Platform-specific syscalls stuff. syswrap-arm64-linux.c -----*/
4 /*--------------------------------------------------------------------*/
5
6 /*
7 This file is part of Valgrind, a dynamic binary instrumentation
8 framework.
9
10 Copyright (C) 2013-2017 OpenWorks
11 info@open-works.net
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_arm64_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_libcbase.h"
39 #include "pub_core_libcassert.h"
40 #include "pub_core_libcprint.h"
41 #include "pub_core_libcsignal.h"
42 #include "pub_core_options.h"
43 #include "pub_core_scheduler.h"
44 #include "pub_core_sigframe.h" // For VG_(sigframe_destroy)()
45 #include "pub_core_syscall.h"
46 #include "pub_core_syswrap.h"
47 #include "pub_core_tooliface.h"
48
49 #include "priv_types_n_macros.h"
50 #include "priv_syswrap-generic.h" /* for decls of generic wrappers */
51 #include "priv_syswrap-linux.h" /* for decls of linux-ish wrappers */
52
53
54 /* ---------------------------------------------------------------------
55 clone() handling
56 ------------------------------------------------------------------ */
57
58 /* Call f(arg1), but first switch stacks, using 'stack' as the new
59 stack, and use 'retaddr' as f's return-to address. Also, clear all
60 the integer registers before entering f.*/
61 __attribute__((noreturn))
62 void ML_(call_on_new_stack_0_1) ( Addr stack,
63 Addr retaddr,
64 void (*f)(Word),
65 Word arg1 );
66 // r0 = stack
67 // r1 = retaddr
68 // r2 = f
69 // r3 = arg1
70 asm(
71 ".text\n"
72 ".globl vgModuleLocal_call_on_new_stack_0_1\n"
73 "vgModuleLocal_call_on_new_stack_0_1:\n"
74 " mov sp, x0\n\t" /* Stack pointer */
75 " mov x30, x1\n\t" /* Return address (x30 is LR) */
76 " mov x0, x3\n\t" /* First argument */
77 " mov x9, x2\n\t" /* 'f': x9 won't be zeroed at start of f. Oh well. */
78 " mov x1, #0\n\t" /* Clear our GPRs */
79 " mov x2, #0\n\t"
80 " mov x3, #0\n\t"
81 " mov x4, #0\n\t"
82 " mov x5, #0\n\t"
83 " mov x6, #0\n\t"
84 " mov x7, #0\n\t"
85 " mov x8, #0\n\t"
86 /* don't zero out x9 */
87 " mov x10, #0\n\t"
88 " mov x11, #0\n\t"
89 " mov x12, #0\n\t"
90 " mov x13, #0\n\t"
91 " mov x14, #0\n\t"
92 " mov x15, #0\n\t"
93 " mov x16, #0\n\t"
94 " mov x17, #0\n\t"
95 " mov x18, #0\n\t"
96 " mov x19, #0\n\t"
97 " mov x20, #0\n\t"
98 " mov x21, #0\n\t"
99 " mov x22, #0\n\t"
100 " mov x23, #0\n\t"
101 " mov x24, #0\n\t"
102 " mov x25, #0\n\t"
103 " mov x26, #0\n\t"
104 " mov x27, #0\n\t"
105 " mov x28, #0\n\t"
106 " mov x29, sp\n\t" /* FP = SP, in the absence of better suggestions */
107 " br x9\n\t"
108 ".previous\n"
109 );
110
111
112 /*
113 Perform a clone system call. clone is strange because it has
114 fork()-like return-twice semantics, so it needs special
115 handling here.
116
117 Upon entry, we have:
118
119 Word (*fn)(void*) in x0
120 void* child_stack in x1
121 int flags in x2
122 void* arg in x3
123 pid_t* child_tid in x4
124 pid_t* parent_tid in x5
125 void* tls_ptr in x6
126
127 System call requires:
128
129 int $__NR_clone in x8
130 int flags in x0
131 void* child_stack in x1
132 pid_t* parent_tid in x2
133 void* tls_ptr in x3
134 pid_t* child_tid in x4
135
136 Returns a Long encoded in the linux-arm64 way, not a SysRes.
137 */
138 #define __NR_CLONE VG_STRINGIFY(__NR_clone)
139 #define __NR_EXIT VG_STRINGIFY(__NR_exit)
140
141 // See priv_syswrap-linux.h for arg profile.
142 asm(
143 ".text\n"
144 ".globl do_syscall_clone_arm64_linux\n"
145 "do_syscall_clone_arm64_linux:\n"
146 // set up child stack, temporarily preserving fn and arg
147 " sub x1, x1, #16\n" // make space on stack
148 " str x3, [x1, #8]\n" // save arg
149 " str x0, [x1, #0]\n" // save fn
150
151 // setup syscall
152 " mov x8, #"__NR_CLONE"\n" // syscall number
153 " mov x0, x2\n" // syscall arg1: flags
154 " mov x1, x1\n" // syscall arg2: child_stack
155 " mov x2, x5\n" // syscall arg3: parent_tid
156 " mov x3, x6\n" // syscall arg4: tls_ptr
157 " mov x4, x4\n" // syscall arg5: child_tid
158
159 " svc 0\n" // clone()
160
161 " cmp x0, #0\n" // child if retval == 0
162 " bne 1f\n"
163
164 // CHILD - call thread function
165 " ldr x1, [sp, #0]\n" // pop fn
166 " ldr x0, [sp, #8]\n" // pop fn arg1: arg
167 " add sp, sp, #16\n"
168 " blr x1\n" // call fn
169
170 // exit with result
171 " mov x0, x0\n" // arg1: return value from fn
172 " mov x8, #"__NR_EXIT"\n"
173
174 " svc 0\n"
175
176 // Exit returned?!
177 " .word 0xFFFFFFFF\n"
178
179 "1:\n" // PARENT or ERROR. x0 holds return value from the clone syscall.
180 " ret\n"
181 ".previous\n"
182 );
183
184 #undef __NR_CLONE
185 #undef __NR_EXIT
186
187 // forward declaration
188 //ZZ static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr );
189
190 /* ---------------------------------------------------------------------
191 More thread stuff
192 ------------------------------------------------------------------ */
193
194 // ARM64 doesn't have any architecture specific thread stuff that
195 // needs to be cleaned up
VG_(cleanup_thread)196 void VG_(cleanup_thread) ( ThreadArchState* arch )
197 {
198 }
199
200 //ZZ /* Assigns tlsptr to the guest TPIDRURO.
201 //ZZ If needed for the specific hardware, really executes
202 //ZZ the set_tls syscall.
203 //ZZ */
204 //ZZ static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr )
205 //ZZ {
206 //ZZ assign_guest_tls(tid, tlsptr);
207 //ZZ #if defined(ANDROID_HARDWARE_emulator)
208 //ZZ /* Android emulator does not provide an hw tls register.
209 //ZZ So, the tls register is emulated by the kernel.
210 //ZZ This emulated value is set by the __NR_ARM_set_tls syscall.
211 //ZZ The emulated value must be read by the kernel helper function
212 //ZZ located at 0xffff0fe0.
213 //ZZ
214 //ZZ The emulated tlsptr is located at 0xffff0ff0
215 //ZZ (so slightly after the kernel helper function).
216 //ZZ Note that applications are not supposed to read this directly.
217 //ZZ
218 //ZZ For compatibility : if there is a hw tls register, the kernel
219 //ZZ will put at 0xffff0fe0 the instructions to read it, so
220 //ZZ as to have old applications calling the kernel helper
221 //ZZ working properly.
222 //ZZ
223 //ZZ For having emulated guest TLS working correctly with
224 //ZZ Valgrind, it is needed to execute the syscall to set
225 //ZZ the emulated TLS value in addition to the assignment
226 //ZZ of TPIDRURO.
227 //ZZ
228 //ZZ Note: the below means that if we need thread local storage
229 //ZZ for Valgrind host, then there will be a conflict between
230 //ZZ the need of the guest tls and of the host tls.
231 //ZZ If all the guest code would cleanly call 0xffff0fe0,
232 //ZZ then we might maybe intercept this. However, at least
233 //ZZ __libc_preinit reads directly 0xffff0ff0.
234 //ZZ */
235 //ZZ /* ??? might call the below if auxv->u.a_val & VKI_HWCAP_TLS ???
236 //ZZ Unclear if real hardware having tls hw register sets
237 //ZZ VKI_HWCAP_TLS. */
238 //ZZ return VG_(do_syscall1) (__NR_ARM_set_tls, tlsptr);
239 //ZZ #else
240 //ZZ return VG_(mk_SysRes_Success)( 0 );
241 //ZZ #endif
242 //ZZ }
243
244 /* ---------------------------------------------------------------------
245 PRE/POST wrappers for arm/Linux-specific syscalls
246 ------------------------------------------------------------------ */
247
248 #define PRE(name) DEFN_PRE_TEMPLATE(arm64_linux, name)
249 #define POST(name) DEFN_POST_TEMPLATE(arm64_linux, name)
250
251 /* Add prototypes for the wrappers declared here, so that gcc doesn't
252 harass us for not having prototypes. Really this is a kludge --
253 the right thing to do is to make these wrappers 'static' since they
254 aren't visible outside this file, but that requires even more macro
255 magic. */
256
257 DECL_TEMPLATE(arm64_linux, sys_fadvise64);
258 DECL_TEMPLATE(arm64_linux, sys_mmap);
259 //ZZ DECL_TEMPLATE(arm_linux, sys_stat64);
260 //ZZ DECL_TEMPLATE(arm_linux, sys_lstat64);
261 //ZZ DECL_TEMPLATE(arm_linux, sys_fstatat64);
262 //ZZ DECL_TEMPLATE(arm_linux, sys_fstat64);
263 //ZZ DECL_TEMPLATE(arm_linux, sys_sigreturn);
264 DECL_TEMPLATE(arm64_linux, sys_rt_sigreturn);
265 //ZZ DECL_TEMPLATE(arm_linux, sys_sigsuspend);
266 //ZZ DECL_TEMPLATE(arm_linux, sys_set_tls);
267 //ZZ DECL_TEMPLATE(arm_linux, sys_cacheflush);
268 //ZZ DECL_TEMPLATE(arm_linux, sys_ptrace);
269
270 //ZZ PRE(sys_mmap2)
271 //ZZ {
272 //ZZ SysRes r;
273 //ZZ
274 //ZZ // Exactly like old_mmap() except:
275 //ZZ // - all 6 args are passed in regs, rather than in a memory-block.
276 //ZZ // - the file offset is specified in pagesize units rather than bytes,
277 //ZZ // so that it can be used for files bigger than 2^32 bytes.
278 //ZZ // pagesize or 4K-size units in offset? For ppc32/64-linux, this is
279 //ZZ // 4K-sized. Assert that the page size is 4K here for safety.
280 //ZZ vg_assert(VKI_PAGE_SIZE == 4096);
281 //ZZ PRINT("sys_mmap2 ( %#lx, %llu, %ld, %ld, %ld, %ld )",
282 //ZZ ARG1, (ULong)ARG2, ARG3, ARG4, ARG5, ARG6 );
283 //ZZ PRE_REG_READ6(long, "mmap2",
284 //ZZ unsigned long, start, unsigned long, length,
285 //ZZ unsigned long, prot, unsigned long, flags,
286 //ZZ unsigned long, fd, unsigned long, offset);
287 //ZZ
288 //ZZ r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5,
289 //ZZ 4096 * (Off64T)ARG6 );
290 //ZZ SET_STATUS_from_SysRes(r);
291 //ZZ }
292
293 // ARM64 FIXME is this correct?
PRE(sys_fadvise64)294 PRE(sys_fadvise64)
295 {
296 PRINT("sys_fadvise64 ( %ld, %ld, %lu, %ld )", SARG1, SARG2, ARG3, SARG4);
297 PRE_REG_READ4(long, "fadvise64",
298 int, fd, vki_loff_t, offset, vki_size_t, len, int, advice);
299 }
300
301 // ARM64 FIXME is this correct?
PRE(sys_mmap)302 PRE(sys_mmap)
303 {
304 SysRes r;
305
306 PRINT("sys_mmap ( %#lx, %lu, %lu, %#lx, %lu, %lu )",
307 ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 );
308 PRE_REG_READ6(long, "mmap",
309 unsigned long, start, unsigned long, length,
310 unsigned long, prot, unsigned long, flags,
311 unsigned long, fd, unsigned long, offset);
312
313 r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 );
314 SET_STATUS_from_SysRes(r);
315 }
316
317 //ZZ
318 //ZZ // XXX: lstat64/fstat64/stat64 are generic, but not necessarily
319 //ZZ // applicable to every architecture -- I think only to 32-bit archs.
320 //ZZ // We're going to need something like linux/core_os32.h for such
321 //ZZ // things, eventually, I think. --njn
322 //ZZ PRE(sys_lstat64)
323 //ZZ {
324 //ZZ PRINT("sys_lstat64 ( %#lx(%s), %#lx )",ARG1,(char*)ARG1,ARG2);
325 //ZZ PRE_REG_READ2(long, "lstat64", char *, file_name, struct stat64 *, buf);
326 //ZZ PRE_MEM_RASCIIZ( "lstat64(file_name)", ARG1 );
327 //ZZ PRE_MEM_WRITE( "lstat64(buf)", ARG2, sizeof(struct vki_stat64) );
328 //ZZ }
329 //ZZ
330 //ZZ POST(sys_lstat64)
331 //ZZ {
332 //ZZ vg_assert(SUCCESS);
333 //ZZ if (RES == 0) {
334 //ZZ POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
335 //ZZ }
336 //ZZ }
337 //ZZ
338 //ZZ PRE(sys_stat64)
339 //ZZ {
340 //ZZ PRINT("sys_stat64 ( %#lx(%s), %#lx )",ARG1,(char*)ARG1,ARG2);
341 //ZZ PRE_REG_READ2(long, "stat64", char *, file_name, struct stat64 *, buf);
342 //ZZ PRE_MEM_RASCIIZ( "stat64(file_name)", ARG1 );
343 //ZZ PRE_MEM_WRITE( "stat64(buf)", ARG2, sizeof(struct vki_stat64) );
344 //ZZ }
345 //ZZ
346 //ZZ POST(sys_stat64)
347 //ZZ {
348 //ZZ POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
349 //ZZ }
350 //ZZ
351 //ZZ PRE(sys_fstatat64)
352 //ZZ {
353 //ZZ PRINT("sys_fstatat64 ( %ld, %#lx(%s), %#lx )",ARG1,ARG2,(char*)ARG2,ARG3);
354 //ZZ PRE_REG_READ3(long, "fstatat64",
355 //ZZ int, dfd, char *, file_name, struct stat64 *, buf);
356 //ZZ PRE_MEM_RASCIIZ( "fstatat64(file_name)", ARG2 );
357 //ZZ PRE_MEM_WRITE( "fstatat64(buf)", ARG3, sizeof(struct vki_stat64) );
358 //ZZ }
359 //ZZ
360 //ZZ POST(sys_fstatat64)
361 //ZZ {
362 //ZZ POST_MEM_WRITE( ARG3, sizeof(struct vki_stat64) );
363 //ZZ }
364 //ZZ
365 //ZZ PRE(sys_fstat64)
366 //ZZ {
367 //ZZ PRINT("sys_fstat64 ( %ld, %#lx )",ARG1,ARG2);
368 //ZZ PRE_REG_READ2(long, "fstat64", unsigned long, fd, struct stat64 *, buf);
369 //ZZ PRE_MEM_WRITE( "fstat64(buf)", ARG2, sizeof(struct vki_stat64) );
370 //ZZ }
371 //ZZ
372 //ZZ POST(sys_fstat64)
373 //ZZ {
374 //ZZ POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
375 //ZZ }
376
377 //ZZ PRE(sys_sigreturn)
378 //ZZ {
379 //ZZ /* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
380 //ZZ an explanation of what follows. */
381 //ZZ
382 //ZZ PRINT("sys_sigreturn ( )");
383 //ZZ
384 //ZZ vg_assert(VG_(is_valid_tid)(tid));
385 //ZZ vg_assert(tid >= 1 && tid < VG_N_THREADS);
386 //ZZ vg_assert(VG_(is_running_thread)(tid));
387 //ZZ
388 //ZZ /* Restore register state from frame and remove it */
389 //ZZ VG_(sigframe_destroy)(tid, False);
390 //ZZ
391 //ZZ /* Tell the driver not to update the guest state with the "result",
392 //ZZ and set a bogus result to keep it happy. */
393 //ZZ *flags |= SfNoWriteResult;
394 //ZZ SET_STATUS_Success(0);
395 //ZZ
396 //ZZ /* Check to see if any signals arose as a result of this. */
397 //ZZ *flags |= SfPollAfter;
398 //ZZ }
399
PRE(sys_rt_sigreturn)400 PRE(sys_rt_sigreturn)
401 {
402 /* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
403 an explanation of what follows. */
404
405 PRINT("rt_sigreturn ( )");
406
407 vg_assert(VG_(is_valid_tid)(tid));
408 vg_assert(tid >= 1 && tid < VG_N_THREADS);
409 vg_assert(VG_(is_running_thread)(tid));
410
411 /* Restore register state from frame and remove it */
412 VG_(sigframe_destroy)(tid, True);
413
414 /* Tell the driver not to update the guest state with the "result",
415 and set a bogus result to keep it happy. */
416 *flags |= SfNoWriteResult;
417 SET_STATUS_Success(0);
418
419 /* Check to see if any signals arose as a result of this. */
420 *flags |= SfPollAfter;
421 }
422
423 //ZZ /* NB: clone of x86-linux version, and ppc32-linux has an almost
424 //ZZ identical one. */
425 //ZZ PRE(sys_sigsuspend)
426 //ZZ {
427 //ZZ /* The C library interface to sigsuspend just takes a pointer to
428 //ZZ a signal mask but this system call has three arguments - the first
429 //ZZ two don't appear to be used by the kernel and are always passed as
430 //ZZ zero by glibc and the third is the first word of the signal mask
431 //ZZ so only 32 signals are supported.
432 //ZZ
433 //ZZ In fact glibc normally uses rt_sigsuspend if it is available as
434 //ZZ that takes a pointer to the signal mask so supports more signals.
435 //ZZ */
436 //ZZ *flags |= SfMayBlock;
437 //ZZ PRINT("sys_sigsuspend ( %ld, %ld, %ld )", ARG1,ARG2,ARG3 );
438 //ZZ PRE_REG_READ3(int, "sigsuspend",
439 //ZZ int, history0, int, history1,
440 //ZZ vki_old_sigset_t, mask);
441 //ZZ }
442 //ZZ
443 //ZZ /* Very much ARM specific */
444 //ZZ
445 //ZZ PRE(sys_set_tls)
446 //ZZ {
447 //ZZ PRINT("set_tls (%lx)",ARG1);
448 //ZZ PRE_REG_READ1(long, "set_tls", unsigned long, addr);
449 //ZZ
450 //ZZ SET_STATUS_from_SysRes( sys_set_tls( tid, ARG1 ) );
451 //ZZ }
452 //ZZ
453 //ZZ PRE(sys_cacheflush)
454 //ZZ {
455 //ZZ PRINT("cacheflush (%lx, %#lx, %#lx)",ARG1,ARG2,ARG3);
456 //ZZ PRE_REG_READ3(long, "cacheflush", void*, addrlow,void*, addrhigh,int, flags);
457 //ZZ VG_(discard_translations)( (Addr)ARG1,
458 //ZZ ((ULong)ARG2) - ((ULong)ARG1) + 1ULL/*paranoia*/,
459 //ZZ "PRE(sys_cacheflush)" );
460 //ZZ SET_STATUS_Success(0);
461 //ZZ }
462 //ZZ
463 //ZZ // ARG3 is only used for pointers into the traced process's address
464 //ZZ // space and for offsets into the traced process's struct
465 //ZZ // user_regs_struct. It is never a pointer into this process's memory
466 //ZZ // space, and we should therefore not check anything it points to.
467 //ZZ PRE(sys_ptrace)
468 //ZZ {
469 //ZZ PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", ARG1,ARG2,ARG3,ARG4);
470 //ZZ PRE_REG_READ4(int, "ptrace",
471 //ZZ long, request, long, pid, long, addr, long, data);
472 //ZZ switch (ARG1) {
473 //ZZ case VKI_PTRACE_PEEKTEXT:
474 //ZZ case VKI_PTRACE_PEEKDATA:
475 //ZZ case VKI_PTRACE_PEEKUSR:
476 //ZZ PRE_MEM_WRITE( "ptrace(peek)", ARG4,
477 //ZZ sizeof (long));
478 //ZZ break;
479 //ZZ case VKI_PTRACE_GETREGS:
480 //ZZ PRE_MEM_WRITE( "ptrace(getregs)", ARG4,
481 //ZZ sizeof (struct vki_user_regs_struct));
482 //ZZ break;
483 //ZZ case VKI_PTRACE_GETFPREGS:
484 //ZZ PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4,
485 //ZZ sizeof (struct vki_user_fp));
486 //ZZ break;
487 //ZZ case VKI_PTRACE_GETWMMXREGS:
488 //ZZ PRE_MEM_WRITE( "ptrace(getwmmxregs)", ARG4,
489 //ZZ VKI_IWMMXT_SIZE);
490 //ZZ break;
491 //ZZ case VKI_PTRACE_GETCRUNCHREGS:
492 //ZZ PRE_MEM_WRITE( "ptrace(getcrunchregs)", ARG4,
493 //ZZ VKI_CRUNCH_SIZE);
494 //ZZ break;
495 //ZZ case VKI_PTRACE_GETVFPREGS:
496 //ZZ PRE_MEM_WRITE( "ptrace(getvfpregs)", ARG4,
497 //ZZ sizeof (struct vki_user_vfp) );
498 //ZZ break;
499 //ZZ case VKI_PTRACE_GETHBPREGS:
500 //ZZ PRE_MEM_WRITE( "ptrace(gethbpregs)", ARG4,
501 //ZZ sizeof (unsigned long) );
502 //ZZ break;
503 //ZZ case VKI_PTRACE_SETREGS:
504 //ZZ PRE_MEM_READ( "ptrace(setregs)", ARG4,
505 //ZZ sizeof (struct vki_user_regs_struct));
506 //ZZ break;
507 //ZZ case VKI_PTRACE_SETFPREGS:
508 //ZZ PRE_MEM_READ( "ptrace(setfpregs)", ARG4,
509 //ZZ sizeof (struct vki_user_fp));
510 //ZZ break;
511 //ZZ case VKI_PTRACE_SETWMMXREGS:
512 //ZZ PRE_MEM_READ( "ptrace(setwmmxregs)", ARG4,
513 //ZZ VKI_IWMMXT_SIZE);
514 //ZZ break;
515 //ZZ case VKI_PTRACE_SETCRUNCHREGS:
516 //ZZ PRE_MEM_READ( "ptrace(setcrunchregs)", ARG4,
517 //ZZ VKI_CRUNCH_SIZE);
518 //ZZ break;
519 //ZZ case VKI_PTRACE_SETVFPREGS:
520 //ZZ PRE_MEM_READ( "ptrace(setvfpregs)", ARG4,
521 //ZZ sizeof (struct vki_user_vfp));
522 //ZZ break;
523 //ZZ case VKI_PTRACE_SETHBPREGS:
524 //ZZ PRE_MEM_READ( "ptrace(sethbpregs)", ARG4, sizeof(unsigned long));
525 //ZZ break;
526 //ZZ case VKI_PTRACE_GET_THREAD_AREA:
527 //ZZ PRE_MEM_WRITE( "ptrace(get_thread_area)", ARG4, sizeof(unsigned long));
528 //ZZ break;
529 //ZZ case VKI_PTRACE_GETEVENTMSG:
530 //ZZ PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
531 //ZZ break;
532 //ZZ case VKI_PTRACE_GETSIGINFO:
533 //ZZ PRE_MEM_WRITE( "ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
534 //ZZ break;
535 //ZZ case VKI_PTRACE_SETSIGINFO:
536 //ZZ PRE_MEM_READ( "ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
537 //ZZ break;
538 //ZZ case VKI_PTRACE_GETREGSET:
539 //ZZ ML_(linux_PRE_getregset)(tid, ARG3, ARG4);
540 //ZZ break;
541 //ZZ case VKI_PTRACE_SETREGSET:
542 //ZZ ML_(linux_PRE_setregset)(tid, ARG3, ARG4);
543 //ZZ break;
544 //ZZ default:
545 //ZZ break;
546 //ZZ }
547 //ZZ }
548 //ZZ
549 //ZZ POST(sys_ptrace)
550 //ZZ {
551 //ZZ switch (ARG1) {
552 //ZZ case VKI_PTRACE_PEEKTEXT:
553 //ZZ case VKI_PTRACE_PEEKDATA:
554 //ZZ case VKI_PTRACE_PEEKUSR:
555 //ZZ POST_MEM_WRITE( ARG4, sizeof (long));
556 //ZZ break;
557 //ZZ case VKI_PTRACE_GETREGS:
558 //ZZ POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct));
559 //ZZ break;
560 //ZZ case VKI_PTRACE_GETFPREGS:
561 //ZZ POST_MEM_WRITE( ARG4, sizeof (struct vki_user_fp));
562 //ZZ break;
563 //ZZ case VKI_PTRACE_GETWMMXREGS:
564 //ZZ POST_MEM_WRITE( ARG4, VKI_IWMMXT_SIZE);
565 //ZZ break;
566 //ZZ case VKI_PTRACE_GETCRUNCHREGS:
567 //ZZ POST_MEM_WRITE( ARG4, VKI_CRUNCH_SIZE);
568 //ZZ break;
569 //ZZ case VKI_PTRACE_GETVFPREGS:
570 //ZZ POST_MEM_WRITE( ARG4, sizeof(struct vki_user_vfp));
571 //ZZ break;
572 //ZZ case VKI_PTRACE_GET_THREAD_AREA:
573 //ZZ case VKI_PTRACE_GETHBPREGS:
574 //ZZ case VKI_PTRACE_GETEVENTMSG:
575 //ZZ POST_MEM_WRITE( ARG4, sizeof(unsigned long));
576 //ZZ break;
577 //ZZ case VKI_PTRACE_GETSIGINFO:
578 //ZZ /* XXX: This is a simplification. Different parts of the
579 //ZZ * siginfo_t are valid depending on the type of signal.
580 //ZZ */
581 //ZZ POST_MEM_WRITE( ARG4, sizeof(vki_siginfo_t));
582 //ZZ break;
583 //ZZ case VKI_PTRACE_GETREGSET:
584 //ZZ ML_(linux_POST_getregset)(tid, ARG3, ARG4);
585 //ZZ break;
586 //ZZ default:
587 //ZZ break;
588 //ZZ }
589 //ZZ }
590 //ZZ
591 //ZZ #undef PRE
592 //ZZ #undef POST
593
594 /* ---------------------------------------------------------------------
595 The arm64/Linux syscall table
596 ------------------------------------------------------------------ */
597
598 //ZZ #if 0
599 //ZZ #define __NR_OABI_SYSCALL_BASE 0x900000
600 //ZZ #else
601 //ZZ #define __NR_OABI_SYSCALL_BASE 0x0
602 //ZZ #endif
603
604 #define PLAX_(sysno, name) WRAPPER_ENTRY_X_(arm64_linux, sysno, name)
605 #define PLAXY(sysno, name) WRAPPER_ENTRY_XY(arm64_linux, sysno, name)
606
607 // This table maps from __NR_xxx syscall numbers (from
608 // linux/include/asm-arm/unistd.h) to the appropriate PRE/POST sys_foo()
609 // wrappers on arm64 (as per sys_call_table in linux/arch/arm/kernel/entry.S).
610 //
611 // For those syscalls not handled by Valgrind, the annotation indicate its
612 // arch/OS combination, eg. */* (generic), */Linux (Linux only), ?/?
613 // (unknown).
614
615 static SyscallTableEntry syscall_main_table[] = {
616 LINXY(__NR_io_setup, sys_io_setup), // 0
617 LINX_(__NR_io_destroy, sys_io_destroy), // 1
618 LINX_(__NR_io_submit, sys_io_submit), // 2
619 LINXY(__NR_io_cancel, sys_io_cancel), // 3
620 LINXY(__NR_io_getevents, sys_io_getevents), // 4
621 LINX_(__NR_setxattr, sys_setxattr), // 5
622 LINX_(__NR_lsetxattr, sys_lsetxattr), // 6
623 LINX_(__NR_fsetxattr, sys_fsetxattr), // 7
624 LINXY(__NR_getxattr, sys_getxattr), // 8
625 LINXY(__NR_lgetxattr, sys_lgetxattr), // 9
626 LINXY(__NR_fgetxattr, sys_fgetxattr), // 10
627 LINXY(__NR_listxattr, sys_listxattr), // 11
628 LINXY(__NR_llistxattr, sys_llistxattr), // 12
629 LINXY(__NR_flistxattr, sys_flistxattr), // 13
630 LINX_(__NR_removexattr, sys_removexattr), // 14
631 LINX_(__NR_lremovexattr, sys_lremovexattr), // 15
632 LINX_(__NR_fremovexattr, sys_fremovexattr), // 16
633 GENXY(__NR_getcwd, sys_getcwd), // 17
634 LINXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 18
635 LINXY(__NR_eventfd2, sys_eventfd2), // 19
636 LINXY(__NR_epoll_create1, sys_epoll_create1), // 20
637 LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 21
638 LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 22
639 GENXY(__NR_dup, sys_dup), // 23
640 LINXY(__NR_dup3, sys_dup3), // 24
641 LINXY(__NR_fcntl, sys_fcntl), // 25
642 LINXY(__NR_inotify_init1, sys_inotify_init1), // 26
643 LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 27
644 LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 28
645 LINXY(__NR_ioctl, sys_ioctl), // 29
646 LINX_(__NR_ioprio_set, sys_ioprio_set), // 30
647 LINX_(__NR_ioprio_get, sys_ioprio_get), // 31
648 GENX_(__NR_flock, sys_flock), // 32
649 LINX_(__NR_mknodat, sys_mknodat), // 33
650 LINX_(__NR_mkdirat, sys_mkdirat), // 34
651 LINX_(__NR_unlinkat, sys_unlinkat), // 35
652 LINX_(__NR_symlinkat, sys_symlinkat), // 36
653 LINX_(__NR_linkat, sys_linkat), // 37
654 LINX_(__NR_renameat, sys_renameat), // 38
655 LINX_(__NR_umount2, sys_umount), // 39
656 LINX_(__NR_mount, sys_mount), // 40
657 LINX_(__NR_pivot_root, sys_pivot_root), // 41
658 // (__NR_nfsservctl, sys_ni_syscall), // 42
659 GENXY(__NR_statfs, sys_statfs), // 43
660 GENXY(__NR_fstatfs, sys_fstatfs), // 44
661 GENX_(__NR_truncate, sys_truncate), // 45
662 GENX_(__NR_ftruncate, sys_ftruncate), // 46
663 LINX_(__NR_fallocate, sys_fallocate), // 47
664 LINX_(__NR_faccessat, sys_faccessat), // 48
665 GENX_(__NR_chdir, sys_chdir), // 49
666 GENX_(__NR_fchdir, sys_fchdir), // 50
667 GENX_(__NR_chroot, sys_chroot), // 51
668 GENX_(__NR_fchmod, sys_fchmod), // 52
669 LINX_(__NR_fchmodat, sys_fchmodat), // 53
670 LINX_(__NR_fchownat, sys_fchownat), // 54
671 GENX_(__NR_fchown, sys_fchown), // 55
672 LINXY(__NR_openat, sys_openat), // 56
673 GENXY(__NR_close, sys_close), // 57
674 LINX_(__NR_vhangup, sys_vhangup), // 58
675 LINXY(__NR_pipe2, sys_pipe2), // 59
676 LINX_(__NR_quotactl, sys_quotactl), // 60
677 GENXY(__NR_getdents64, sys_getdents64), // 61
678 LINX_(__NR_lseek, sys_lseek), // 62
679 GENXY(__NR_read, sys_read), // 63
680 GENX_(__NR_write, sys_write), // 64
681 GENXY(__NR_readv, sys_readv), // 65
682 GENX_(__NR_writev, sys_writev), // 66
683 GENXY(__NR_pread64, sys_pread64), // 67
684 GENX_(__NR_pwrite64, sys_pwrite64), // 68
685 LINXY(__NR_preadv, sys_preadv), // 69
686 LINX_(__NR_pwritev, sys_pwritev), // 70
687 LINXY(__NR_sendfile, sys_sendfile), // 71
688 LINXY(__NR_pselect6, sys_pselect6), // 72
689 LINXY(__NR_ppoll, sys_ppoll), // 73
690 LINXY(__NR_signalfd4, sys_signalfd4), // 74
691 LINX_(__NR_vmsplice, sys_vmsplice), // 75
692 LINX_(__NR_splice, sys_splice), // 76
693 LINX_(__NR_tee, sys_tee), // 77
694 LINX_(__NR_readlinkat, sys_readlinkat), // 78
695 LINXY(__NR_newfstatat, sys_newfstatat), // 79
696 GENXY(__NR_fstat, sys_newfstat), // 80
697 GENX_(__NR_sync, sys_sync), // 81
698 GENX_(__NR_fsync, sys_fsync), // 82
699 GENX_(__NR_fdatasync, sys_fdatasync), // 83
700 LINX_(__NR_sync_file_range, sys_sync_file_range), // 84
701 LINXY(__NR_timerfd_create, sys_timerfd_create), // 85
702 LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 86
703 LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 87
704 LINX_(__NR_utimensat, sys_utimensat), // 88
705 GENX_(__NR_acct, sys_acct), // 89
706 LINXY(__NR_capget, sys_capget), // 90
707 LINX_(__NR_capset, sys_capset), // 91
708 LINX_(__NR_personality, sys_personality), // 92
709 GENX_(__NR_exit, sys_exit), // 93
710 LINX_(__NR_exit_group, sys_exit_group), // 94
711 LINXY(__NR_waitid, sys_waitid), // 95
712 LINX_(__NR_set_tid_address, sys_set_tid_address), // 96
713 LINX_(__NR_unshare, sys_unshare), // 97
714 LINXY(__NR_futex, sys_futex), // 98
715 LINX_(__NR_set_robust_list, sys_set_robust_list), // 99
716 LINXY(__NR_get_robust_list, sys_get_robust_list), // 100
717 GENXY(__NR_nanosleep, sys_nanosleep), // 101
718 GENXY(__NR_getitimer, sys_getitimer), // 102
719 GENXY(__NR_setitimer, sys_setitimer), // 103
720 GENX_(__NR_kexec_load, sys_ni_syscall), // 104
721 LINX_(__NR_init_module, sys_init_module), // 105
722 LINX_(__NR_delete_module, sys_delete_module), // 106
723 LINXY(__NR_timer_create, sys_timer_create), // 107
724 LINXY(__NR_timer_gettime, sys_timer_gettime), // 108
725 LINX_(__NR_timer_getoverrun, sys_timer_getoverrun), // 109
726 LINXY(__NR_timer_settime, sys_timer_settime), // 110
727 LINX_(__NR_timer_delete, sys_timer_delete), // 111
728 LINX_(__NR_clock_settime, sys_clock_settime), // 112
729 LINXY(__NR_clock_gettime, sys_clock_gettime), // 113
730 LINXY(__NR_clock_getres, sys_clock_getres), // 114
731 LINXY(__NR_clock_nanosleep, sys_clock_nanosleep), // 115
732 LINXY(__NR_syslog, sys_syslog), // 116
733 // (__NR_ptrace, sys_ptrace), // 117
734 LINXY(__NR_sched_setparam, sys_sched_setparam), // 118
735 LINX_(__NR_sched_setscheduler,sys_sched_setscheduler),// 119
736 LINX_(__NR_sched_getscheduler,sys_sched_getscheduler),// 120
737 LINXY(__NR_sched_getparam, sys_sched_getparam), // 121
738 LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 122
739 LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 123
740 LINX_(__NR_sched_yield, sys_sched_yield), // 124
741 LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max),// 125
742 LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min),// 126
743 LINXY(__NR_sched_rr_get_interval, sys_sched_rr_get_interval),// 127
744 // (__NR_restart_syscall, sys_ni_syscall), // 128
745 GENX_(__NR_kill, sys_kill), // 129
746 LINXY(__NR_tkill, sys_tkill), // 130
747 LINX_(__NR_tgkill, sys_tgkill), // 131
748 GENXY(__NR_sigaltstack, sys_sigaltstack), // 132
749 LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 133
750 LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 134
751 LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 135
752 LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 136
753 LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait), // 137
754 LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo), // 138
755 PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 139
756 GENX_(__NR_setpriority, sys_setpriority), // 140
757 GENX_(__NR_getpriority, sys_getpriority), // 141
758 // (__NR_reboot, sys_ni_syscall), // 142
759 GENX_(__NR_setregid, sys_setregid), // 143
760 GENX_(__NR_setgid, sys_setgid), // 144
761 GENX_(__NR_setreuid, sys_setreuid), // 145
762 GENX_(__NR_setuid, sys_setuid), // 146
763 LINX_(__NR_setresuid, sys_setresuid), // 147
764 LINXY(__NR_getresuid, sys_getresuid), // 148
765 LINX_(__NR_setresgid, sys_setresgid), // 149
766 LINXY(__NR_getresgid, sys_getresgid), // 150
767 LINX_(__NR_setfsuid, sys_setfsuid), // 151
768 LINX_(__NR_setfsgid, sys_setfsgid), // 152
769 GENXY(__NR_times, sys_times), // 153
770 GENX_(__NR_setpgid, sys_setpgid), // 154
771 GENX_(__NR_getpgid, sys_getpgid), // 155
772 GENX_(__NR_getsid, sys_getsid), // 156
773 GENX_(__NR_setsid, sys_setsid), // 157
774 GENXY(__NR_getgroups, sys_getgroups), // 158
775 GENX_(__NR_setgroups, sys_setgroups), // 159
776 GENXY(__NR_uname, sys_newuname), // 160
777 GENX_(__NR_sethostname, sys_sethostname), // 161
778 // (__NR_setdomainname, sys_ni_syscall), // 162
779 GENXY(__NR_getrlimit, sys_old_getrlimit), // 163
780 GENX_(__NR_setrlimit, sys_setrlimit), // 164
781 GENXY(__NR_getrusage, sys_getrusage), // 165
782 GENX_(__NR_umask, sys_umask), // 166
783 LINXY(__NR_prctl, sys_prctl), // 167
784 LINXY(__NR_getcpu, sys_getcpu), // 168
785 GENXY(__NR_gettimeofday, sys_gettimeofday), // 169
786 GENX_(__NR_settimeofday, sys_settimeofday), // 170
787 LINXY(__NR_adjtimex, sys_adjtimex), // 171
788 GENX_(__NR_getpid, sys_getpid), // 172
789 GENX_(__NR_getppid, sys_getppid), // 173
790 GENX_(__NR_getuid, sys_getuid), // 174
791 GENX_(__NR_geteuid, sys_geteuid), // 175
792 GENX_(__NR_getgid, sys_getgid), // 176
793 GENX_(__NR_getegid, sys_getegid), // 177
794 LINX_(__NR_gettid, sys_gettid), // 178
795 LINXY(__NR_sysinfo, sys_sysinfo), // 179
796 LINXY(__NR_mq_open, sys_mq_open), // 180
797 LINX_(__NR_mq_unlink, sys_mq_unlink), // 181
798 LINX_(__NR_mq_timedsend, sys_mq_timedsend), // 182
799 LINXY(__NR_mq_timedreceive, sys_mq_timedreceive), // 183
800 LINX_(__NR_mq_notify, sys_mq_notify), // 184
801 LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // 185
802 LINX_(__NR_msgget, sys_msgget), // 186
803 LINXY(__NR_msgctl, sys_msgctl), // 187
804 LINXY(__NR_msgrcv, sys_msgrcv), // 188
805 LINX_(__NR_msgsnd, sys_msgsnd), // 189
806 LINX_(__NR_semget, sys_semget), // 190
807 LINXY(__NR_semctl, sys_semctl), // 191
808 LINX_(__NR_semtimedop, sys_semtimedop), // 192
809 LINX_(__NR_semop, sys_semop), // 193
810 LINX_(__NR_shmget, sys_shmget), // 194
811 LINXY(__NR_shmctl, sys_shmctl), // 195
812 LINXY(__NR_shmat, sys_shmat), // 196
813 LINXY(__NR_shmdt, sys_shmdt), // 197
814 LINXY(__NR_socket, sys_socket), // 198
815 LINXY(__NR_socketpair, sys_socketpair), // 199
816 LINX_(__NR_bind, sys_bind), // 200
817 LINX_(__NR_listen, sys_listen), // 201
818 LINXY(__NR_accept, sys_accept), // 202
819 LINX_(__NR_connect, sys_connect), // 203
820 LINXY(__NR_getsockname, sys_getsockname), // 204
821 LINXY(__NR_getpeername, sys_getpeername), // 205
822 LINX_(__NR_sendto, sys_sendto), // 206
823 LINXY(__NR_recvfrom, sys_recvfrom), // 207
824 LINX_(__NR_setsockopt, sys_setsockopt), // 208
825 LINXY(__NR_getsockopt, sys_getsockopt), // 209
826 LINX_(__NR_shutdown, sys_shutdown), // 210
827 LINX_(__NR_sendmsg, sys_sendmsg), // 211
828 LINXY(__NR_recvmsg, sys_recvmsg), // 212
829 LINX_(__NR_readahead, sys_readahead), // 213
830 GENX_(__NR_brk, sys_brk), // 214
831 GENXY(__NR_munmap, sys_munmap), // 215
832 GENX_(__NR_mremap, sys_mremap), // 216
833 LINX_(__NR_add_key, sys_add_key), // 217
834 LINX_(__NR_request_key, sys_request_key), // 218
835 LINXY(__NR_keyctl, sys_keyctl), // 219
836 LINX_(__NR_clone, sys_clone), // 220
837 GENX_(__NR_execve, sys_execve), // 221
838 PLAX_(__NR_mmap, sys_mmap), // 222
839 PLAX_(__NR_fadvise64, sys_fadvise64), // 223
840 // (__NR_swapon, sys_swapon), // 224
841 // (__NR_swapoff, sys_swapoff), // 225
842 GENXY(__NR_mprotect, sys_mprotect), // 226
843 GENX_(__NR_msync, sys_msync), // 227
844 GENX_(__NR_mlock, sys_mlock), // 228
845 GENX_(__NR_munlock, sys_munlock), // 229
846 GENX_(__NR_mlockall, sys_mlockall), // 230
847 LINX_(__NR_munlockall, sys_munlockall), // 231
848 GENXY(__NR_mincore, sys_mincore), // 232
849 GENX_(__NR_madvise, sys_madvise), // 233
850 // (__NR_remap_file_pages, sys_ni_syscall) // 234
851 LINX_(__NR_mbind, sys_mbind), // 235
852 LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 236
853 LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 237
854 // (__NR_migrate_pages, sys_ni_syscall), // 238
855 LINXY(__NR_move_pages, sys_move_pages), // 239
856 LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo), // 240
857 LINXY(__NR_perf_event_open, sys_perf_event_open), // 241
858 LINXY(__NR_accept4, sys_accept4), // 242
859 LINXY(__NR_recvmmsg, sys_recvmmsg), // 243
860 GENXY(__NR_wait4, sys_wait4), // 260
861 LINXY(__NR_prlimit64, sys_prlimit64), // 261
862 LINXY(__NR_fanotify_init, sys_fanotify_init), // 262
863 LINX_(__NR_fanotify_mark, sys_fanotify_mark), // 263
864 LINXY(__NR_name_to_handle_at, sys_name_to_handle_at), // 264
865 LINXY(__NR_open_by_handle_at, sys_open_by_handle_at), // 265
866 LINXY(__NR_clock_adjtime, sys_clock_adjtime), // 266
867 LINX_(__NR_syncfs, sys_syncfs), // 267
868 // (__NR_setns, sys_ni_syscall), // 268
869 LINXY(__NR_sendmmsg, sys_sendmmsg), // 269
870 LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 270
871 LINX_(__NR_process_vm_writev, sys_process_vm_writev), // 271
872 LINX_(__NR_kcmp, sys_kcmp), // 272
873 // (__NR_finit_module, sys_ni_syscall), // 273
874 // (__NR_sched_setattr, sys_ni_syscall), // 274
875 // (__NR_sched_getattr, sys_ni_syscall), // 275
876 LINX_(__NR_renameat2, sys_renameat2), // 276
877 // (__NR_seccomp, sys_ni_syscall), // 277
878 LINXY(__NR_getrandom, sys_getrandom), // 278
879 LINXY(__NR_memfd_create, sys_memfd_create), // 279
880 // (__NR_bpf, sys_ni_syscall) // 280
881 // (__NR_execveat, sys_ni_syscall), // 281
882 // (__NR_userfaultfd, sys_ni_syscall), // 282
883 // (__NR_membarrier, sys_ni_syscall), // 283
884 // (__NR_mlock2, sys_ni_syscall), // 284
885 // (__NR_copy_file_range, sys_ni_syscall), // 285
886 // (__NR_preadv2, sys_ni_syscall), // 286
887 // (__NR_pwritev2, sys_ni_syscall), // 287
888 // (__NR_pkey_mprotect, sys_ni_syscall), // 288
889 // (__NR_pkey_alloc, sys_ni_syscall), // 289
890 // (__NR_pkey_free, sys_ni_syscall), // 290
891 };
892
893
894 //ZZ /* These are not in the main table because there indexes are not small
895 //ZZ integers, but rather values close to one million. So their
896 //ZZ inclusion would force the main table to be huge (about 8 MB). */
897 //ZZ
898 //ZZ static SyscallTableEntry ste___ARM_set_tls
899 //ZZ = { WRAPPER_PRE_NAME(arm_linux,sys_set_tls), NULL };
900 //ZZ
901 //ZZ static SyscallTableEntry ste___ARM_cacheflush
902 //ZZ = { WRAPPER_PRE_NAME(arm_linux,sys_cacheflush), NULL };
903
ML_(get_linux_syscall_entry)904 SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
905 {
906 const UInt syscall_main_table_size
907 = sizeof(syscall_main_table) / sizeof(syscall_main_table[0]);
908
909 /* Is it in the contiguous initial section of the table? */
910 if (sysno < syscall_main_table_size) {
911 SyscallTableEntry* sys = &syscall_main_table[sysno];
912 if (sys->before == NULL)
913 return NULL; /* no entry */
914 else
915 return sys;
916 }
917
918 //ZZ /* Check if it's one of the out-of-line entries. */
919 //ZZ switch (sysno) {
920 //ZZ case __NR_ARM_set_tls: return &ste___ARM_set_tls;
921 //ZZ case __NR_ARM_cacheflush: return &ste___ARM_cacheflush;
922 //ZZ default: break;
923 //ZZ }
924
925 /* Can't find a wrapper */
926 return NULL;
927 }
928
929 #endif // defined(VGP_arm64_linux)
930
931 /*--------------------------------------------------------------------*/
932 /*--- end syswrap-arm64-linux.c ---*/
933 /*--------------------------------------------------------------------*/
934