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 (at) 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 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? 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? 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 } 399 400 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 }; 903 904 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
