1 2 /*--------------------------------------------------------------------*/ 3 /*--- Platform-specific syscalls stuff. syswrap-amd64-linux.c ---*/ 4 /*--------------------------------------------------------------------*/ 5 6 /* 7 This file is part of Valgrind, a dynamic binary instrumentation 8 framework. 9 10 Copyright (C) 2000-2017 Nicholas Nethercote 11 njn (at) valgrind.org 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_amd64_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_options.h" 40 #include "pub_core_libcbase.h" 41 #include "pub_core_libcassert.h" 42 #include "pub_core_libcprint.h" 43 #include "pub_core_libcproc.h" 44 #include "pub_core_libcsignal.h" 45 #include "pub_core_scheduler.h" 46 #include "pub_core_sigframe.h" 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-linux-variants.h" /* decls of linux variant wrappers */ 56 #include "priv_syswrap-main.h" 57 58 59 /* --------------------------------------------------------------------- 60 clone() handling 61 ------------------------------------------------------------------ */ 62 63 /* Call f(arg1), but first switch stacks, using 'stack' as the new 64 stack, and use 'retaddr' as f's return-to address. Also, clear all 65 the integer registers before entering f. */ 66 __attribute__((noreturn)) 67 void ML_(call_on_new_stack_0_1) ( Addr stack, 68 Addr retaddr, 69 void (*f)(Word), 70 Word arg1 ); 71 // %rdi == stack 72 // %rsi == retaddr 73 // %rdx == f 74 // %rcx == arg1 75 asm( 76 ".text\n" 77 ".globl vgModuleLocal_call_on_new_stack_0_1\n" 78 "vgModuleLocal_call_on_new_stack_0_1:\n" 79 " movq %rdi, %rsp\n" // set stack 80 " pushq %rsi\n" // retaddr to stack 81 " pushq %rdx\n" // f to stack 82 " pushq %rcx\n" // arg1 to stack 83 " movq $0, %rax\n" // zero all GP regs 84 " movq $0, %rbx\n" 85 " movq $0, %rcx\n" 86 " movq $0, %rdx\n" 87 " movq $0, %rsi\n" 88 " movq $0, %rdi\n" 89 " movq $0, %rbp\n" 90 " movq $0, %r8\n" 91 " movq $0, %r9\n" 92 " movq $0, %r10\n" 93 " movq $0, %r11\n" 94 " movq $0, %r12\n" 95 " movq $0, %r13\n" 96 " movq $0, %r14\n" 97 " movq $0, %r15\n" 98 " popq %rdi\n" // arg1 to correct arg reg 99 " ret\n" // jump to f 100 " ud2\n" // should never get here 101 ".previous\n" 102 ); 103 104 /* 105 Perform a clone system call. clone is strange because it has 106 fork()-like return-twice semantics, so it needs special 107 handling here. 108 109 Upon entry, we have: 110 111 int (*fn)(void*) in %rdi 112 void* child_stack in %rsi 113 int flags in %rdx 114 void* arg in %rcx 115 pid_t* child_tid in %r8 116 pid_t* parent_tid in %r9 117 void* tls_ptr at 8(%rsp) 118 119 System call requires: 120 121 int $__NR_clone in %rax 122 int flags in %rdi 123 void* child_stack in %rsi 124 pid_t* parent_tid in %rdx 125 pid_t* child_tid in %r10 126 void* tls_ptr in %r8 127 128 Returns a Long encoded in the linux-amd64 way, not a SysRes. 129 */ 130 #define __NR_CLONE VG_STRINGIFY(__NR_clone) 131 #define __NR_EXIT VG_STRINGIFY(__NR_exit) 132 133 // See priv_syswrap-linux.h for arg profile. 134 asm( 135 ".text\n" 136 ".globl do_syscall_clone_amd64_linux\n" 137 "do_syscall_clone_amd64_linux:\n" 138 // set up child stack, temporarily preserving fn and arg 139 " subq $16, %rsi\n" // make space on stack 140 " movq %rcx, 8(%rsi)\n" // save arg 141 " movq %rdi, 0(%rsi)\n" // save fn 142 143 // setup syscall 144 " movq $"__NR_CLONE", %rax\n" // syscall number 145 " movq %rdx, %rdi\n" // syscall arg1: flags 146 // %rsi already setup // syscall arg2: child_stack 147 " movq %r9, %rdx\n" // syscall arg3: parent_tid 148 " movq %r8, %r10\n" // syscall arg4: child_tid 149 " movq 8(%rsp), %r8\n" // syscall arg5: tls_ptr 150 151 " syscall\n" // clone() 152 153 " testq %rax, %rax\n" // child if retval == 0 154 " jnz 1f\n" 155 156 // CHILD - call thread function 157 " pop %rax\n" // pop fn 158 " pop %rdi\n" // pop fn arg1: arg 159 " call *%rax\n" // call fn 160 161 // exit with result 162 " movq %rax, %rdi\n" // arg1: return value from fn 163 " movq $"__NR_EXIT", %rax\n" 164 165 " syscall\n" 166 167 // Exit returned?! 168 " ud2\n" 169 170 "1:\n" // PARENT or ERROR 171 " ret\n" 172 ".previous\n" 173 ); 174 175 #undef __NR_CLONE 176 #undef __NR_EXIT 177 178 179 /* --------------------------------------------------------------------- 180 More thread stuff 181 ------------------------------------------------------------------ */ 182 183 void VG_(cleanup_thread) ( ThreadArchState *arch ) 184 { 185 } 186 187 /* --------------------------------------------------------------------- 188 PRE/POST wrappers for AMD64/Linux-specific syscalls 189 ------------------------------------------------------------------ */ 190 191 #define PRE(name) DEFN_PRE_TEMPLATE(amd64_linux, name) 192 #define POST(name) DEFN_POST_TEMPLATE(amd64_linux, name) 193 194 /* Add prototypes for the wrappers declared here, so that gcc doesn't 195 harass us for not having prototypes. Really this is a kludge -- 196 the right thing to do is to make these wrappers 'static' since they 197 aren't visible outside this file, but that requires even more macro 198 magic. */ 199 DECL_TEMPLATE(amd64_linux, sys_rt_sigreturn); 200 DECL_TEMPLATE(amd64_linux, sys_arch_prctl); 201 DECL_TEMPLATE(amd64_linux, sys_ptrace); 202 DECL_TEMPLATE(amd64_linux, sys_fadvise64); 203 DECL_TEMPLATE(amd64_linux, sys_mmap); 204 DECL_TEMPLATE(amd64_linux, sys_syscall184); 205 206 207 PRE(sys_rt_sigreturn) 208 { 209 /* This isn't really a syscall at all - it's a misuse of the 210 syscall mechanism by m_sigframe. VG_(sigframe_create) sets the 211 return address of the signal frames it creates to be a short 212 piece of code which does this "syscall". The only purpose of 213 the syscall is to call VG_(sigframe_destroy), which restores the 214 thread's registers from the frame and then removes it. 215 Consequently we must ask the syswrap driver logic not to write 216 back the syscall "result" as that would overwrite the 217 just-restored register state. */ 218 219 ThreadState* tst; 220 PRINT("sys_rt_sigreturn ( )"); 221 222 vg_assert(VG_(is_valid_tid)(tid)); 223 vg_assert(tid >= 1 && tid < VG_N_THREADS); 224 vg_assert(VG_(is_running_thread)(tid)); 225 226 /* Adjust RSP to point to start of frame; skip back up over handler 227 ret addr */ 228 tst = VG_(get_ThreadState)(tid); 229 tst->arch.vex.guest_RSP -= sizeof(Addr); 230 231 /* This is only so that the RIP is (might be) useful to report if 232 something goes wrong in the sigreturn. JRS 20070318: no idea 233 what this is for */ 234 ML_(fixup_guest_state_to_restart_syscall)(&tst->arch); 235 236 /* Restore register state from frame and remove it, as 237 described above */ 238 VG_(sigframe_destroy)(tid, True); 239 240 /* Tell the driver not to update the guest state with the "result", 241 and set a bogus result to keep it happy. */ 242 *flags |= SfNoWriteResult; 243 SET_STATUS_Success(0); 244 245 /* Check to see if any signals arose as a result of this. */ 246 *flags |= SfPollAfter; 247 } 248 249 PRE(sys_arch_prctl) 250 { 251 ThreadState* tst; 252 PRINT( "arch_prctl ( %ld, %lx )", SARG1, ARG2 ); 253 254 vg_assert(VG_(is_valid_tid)(tid)); 255 vg_assert(tid >= 1 && tid < VG_N_THREADS); 256 vg_assert(VG_(is_running_thread)(tid)); 257 258 // Nb: can't use "ARG2".."ARG5" here because that's our own macro... 259 PRE_REG_READ2(long, "arch_prctl", 260 int, option, unsigned long, arg2); 261 // XXX: totally wrong... we need to look at the 'option' arg, and do 262 // PRE_MEM_READs/PRE_MEM_WRITEs as necessary... 263 264 /* "do" the syscall ourselves; the kernel never sees it */ 265 if (ARG1 == VKI_ARCH_SET_FS) { 266 tst = VG_(get_ThreadState)(tid); 267 tst->arch.vex.guest_FS_CONST = ARG2; 268 } 269 else if (ARG1 == VKI_ARCH_GET_FS) { 270 PRE_MEM_WRITE("arch_prctl(addr)", ARG2, sizeof(unsigned long)); 271 tst = VG_(get_ThreadState)(tid); 272 *(unsigned long *)ARG2 = tst->arch.vex.guest_FS_CONST; 273 POST_MEM_WRITE(ARG2, sizeof(unsigned long)); 274 } 275 else if (ARG1 == VKI_ARCH_SET_GS) { 276 tst = VG_(get_ThreadState)(tid); 277 tst->arch.vex.guest_GS_CONST = ARG2; 278 } 279 else if (ARG1 == VKI_ARCH_GET_GS) { 280 PRE_MEM_WRITE("arch_prctl(addr)", ARG2, sizeof(unsigned long)); 281 tst = VG_(get_ThreadState)(tid); 282 *(unsigned long *)ARG2 = tst->arch.vex.guest_GS_CONST; 283 POST_MEM_WRITE(ARG2, sizeof(unsigned long)); 284 } 285 else { 286 VG_(core_panic)("Unsupported arch_prctl option"); 287 } 288 289 /* Note; the Status writeback to guest state that happens after 290 this wrapper returns does not change guest_FS_CONST or guest_GS_CONST; 291 hence that direct assignment to the guest state is safe here. */ 292 SET_STATUS_Success( 0 ); 293 } 294 295 // Parts of this are amd64-specific, but the *PEEK* cases are generic. 296 // 297 // ARG3 is only used for pointers into the traced process's address 298 // space and for offsets into the traced process's struct 299 // user_regs_struct. It is never a pointer into this process's memory 300 // space, and we should therefore not check anything it points to. 301 PRE(sys_ptrace) 302 { 303 PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", SARG1, SARG2, ARG3, ARG4); 304 PRE_REG_READ4(int, "ptrace", 305 long, request, long, pid, long, addr, long, data); 306 switch (ARG1) { 307 case VKI_PTRACE_PEEKTEXT: 308 case VKI_PTRACE_PEEKDATA: 309 case VKI_PTRACE_PEEKUSR: 310 PRE_MEM_WRITE( "ptrace(peek)", ARG4, 311 sizeof (long)); 312 break; 313 case VKI_PTRACE_GETREGS: 314 PRE_MEM_WRITE( "ptrace(getregs)", ARG4, 315 sizeof (struct vki_user_regs_struct)); 316 break; 317 case VKI_PTRACE_GETFPREGS: 318 PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4, 319 sizeof (struct vki_user_i387_struct)); 320 break; 321 case VKI_PTRACE_SETREGS: 322 PRE_MEM_READ( "ptrace(setregs)", ARG4, 323 sizeof (struct vki_user_regs_struct)); 324 break; 325 case VKI_PTRACE_SETFPREGS: 326 PRE_MEM_READ( "ptrace(setfpregs)", ARG4, 327 sizeof (struct vki_user_i387_struct)); 328 break; 329 case VKI_PTRACE_GETEVENTMSG: 330 PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long)); 331 break; 332 case VKI_PTRACE_GETSIGINFO: 333 PRE_MEM_WRITE( "ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t)); 334 break; 335 case VKI_PTRACE_SETSIGINFO: 336 PRE_MEM_READ( "ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t)); 337 break; 338 case VKI_PTRACE_GETREGSET: 339 ML_(linux_PRE_getregset)(tid, ARG3, ARG4); 340 break; 341 case VKI_PTRACE_SETREGSET: 342 ML_(linux_PRE_setregset)(tid, ARG3, ARG4); 343 break; 344 default: 345 break; 346 } 347 } 348 349 POST(sys_ptrace) 350 { 351 switch (ARG1) { 352 case VKI_PTRACE_TRACEME: 353 ML_(linux_POST_traceme)(tid); 354 break; 355 case VKI_PTRACE_PEEKTEXT: 356 case VKI_PTRACE_PEEKDATA: 357 case VKI_PTRACE_PEEKUSR: 358 POST_MEM_WRITE( ARG4, sizeof (long)); 359 break; 360 case VKI_PTRACE_GETREGS: 361 POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct)); 362 break; 363 case VKI_PTRACE_GETFPREGS: 364 POST_MEM_WRITE( ARG4, sizeof (struct vki_user_i387_struct)); 365 break; 366 case VKI_PTRACE_GETEVENTMSG: 367 POST_MEM_WRITE( ARG4, sizeof(unsigned long)); 368 break; 369 case VKI_PTRACE_GETSIGINFO: 370 /* XXX: This is a simplification. Different parts of the 371 * siginfo_t are valid depending on the type of signal. 372 */ 373 POST_MEM_WRITE( ARG4, sizeof(vki_siginfo_t)); 374 break; 375 case VKI_PTRACE_GETREGSET: 376 ML_(linux_POST_getregset)(tid, ARG3, ARG4); 377 break; 378 default: 379 break; 380 } 381 } 382 383 PRE(sys_fadvise64) 384 { 385 PRINT("sys_fadvise64 ( %ld, %ld, %lu, %ld )", SARG1, SARG2, ARG3, SARG4); 386 PRE_REG_READ4(long, "fadvise64", 387 int, fd, vki_loff_t, offset, vki_size_t, len, int, advice); 388 } 389 390 PRE(sys_mmap) 391 { 392 SysRes r; 393 394 PRINT("sys_mmap ( %#lx, %lu, %ld, %ld, %ld, %ld )", 395 ARG1, ARG2, SARG3, SARG4, SARG5, SARG6 ); 396 PRE_REG_READ6(long, "mmap", 397 unsigned long, start, unsigned long, length, 398 int, prot, int, flags, int, fd, vki_off_t, offset); 399 400 r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 ); 401 SET_STATUS_from_SysRes(r); 402 } 403 404 405 /* --------------------------------------------------------------- 406 PRE/POST wrappers for AMD64/Linux-variant specific syscalls 407 ------------------------------------------------------------ */ 408 409 PRE(sys_syscall184) 410 { 411 Int err; 412 413 /* 184 is used by sys_bproc. If we're not on a declared bproc 414 variant, fail in the usual way, since it is otherwise unused. */ 415 416 if (!KernelVariantiS(KernelVariant_bproc, VG_(clo_kernel_variant))) { 417 PRINT("non-existent syscall! (syscall 184)"); 418 PRE_REG_READ0(long, "ni_syscall(184)"); 419 SET_STATUS_Failure( VKI_ENOSYS ); 420 return; 421 } 422 423 err = ML_(linux_variant_PRE_sys_bproc)( ARG1, ARG2, ARG3, 424 ARG4, ARG5, ARG6 ); 425 if (err) { 426 SET_STATUS_Failure( err ); 427 return; 428 } 429 /* Let it go through. */ 430 *flags |= SfMayBlock; /* who knows? play safe. */ 431 } 432 433 POST(sys_syscall184) 434 { 435 ML_(linux_variant_POST_sys_bproc)( ARG1, ARG2, ARG3, 436 ARG4, ARG5, ARG6 ); 437 } 438 439 #undef PRE 440 #undef POST 441 442 443 /* --------------------------------------------------------------------- 444 The AMD64/Linux syscall table 445 ------------------------------------------------------------------ */ 446 447 /* Add an amd64-linux specific wrapper to a syscall table. */ 448 #define PLAX_(const, name) WRAPPER_ENTRY_X_(amd64_linux, const, name) 449 #define PLAXY(const, name) WRAPPER_ENTRY_XY(amd64_linux, const, name) 450 451 // This table maps from __NR_xxx syscall numbers (from 452 // linux/include/asm-x86_64/unistd.h) to the appropriate PRE/POST sys_foo() 453 // wrappers on AMD64 (as per sys_call_table in 454 // linux/arch/x86_64/kernel/entry.S). 455 // 456 // When implementing these wrappers, you need to work out if the wrapper is 457 // generic, Linux-only (but arch-independent), or AMD64/Linux only. 458 459 static SyscallTableEntry syscall_table[] = { 460 GENXY(__NR_read, sys_read), // 0 461 GENX_(__NR_write, sys_write), // 1 462 GENXY(__NR_open, sys_open), // 2 463 GENXY(__NR_close, sys_close), // 3 464 GENXY(__NR_stat, sys_newstat), // 4 465 466 GENXY(__NR_fstat, sys_newfstat), // 5 467 GENXY(__NR_lstat, sys_newlstat), // 6 468 GENXY(__NR_poll, sys_poll), // 7 469 LINX_(__NR_lseek, sys_lseek), // 8 470 PLAX_(__NR_mmap, sys_mmap), // 9 471 472 GENXY(__NR_mprotect, sys_mprotect), // 10 473 GENXY(__NR_munmap, sys_munmap), // 11 474 GENX_(__NR_brk, sys_brk), // 12 475 LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 13 476 LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 14 477 478 PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 15 479 LINXY(__NR_ioctl, sys_ioctl), // 16 480 GENXY(__NR_pread64, sys_pread64), // 17 481 GENX_(__NR_pwrite64, sys_pwrite64), // 18 482 GENXY(__NR_readv, sys_readv), // 19 483 484 GENX_(__NR_writev, sys_writev), // 20 485 GENX_(__NR_access, sys_access), // 21 486 LINXY(__NR_pipe, sys_pipe), // 22 487 GENX_(__NR_select, sys_select), // 23 488 LINX_(__NR_sched_yield, sys_sched_yield), // 24 489 490 GENX_(__NR_mremap, sys_mremap), // 25 491 GENX_(__NR_msync, sys_msync), // 26 492 GENXY(__NR_mincore, sys_mincore), // 27 493 GENX_(__NR_madvise, sys_madvise), // 28 494 LINX_(__NR_shmget, sys_shmget), // 29 495 496 LINXY(__NR_shmat, sys_shmat), // 30 497 LINXY(__NR_shmctl, sys_shmctl), // 31 498 GENXY(__NR_dup, sys_dup), // 32 499 GENXY(__NR_dup2, sys_dup2), // 33 500 GENX_(__NR_pause, sys_pause), // 34 501 502 GENXY(__NR_nanosleep, sys_nanosleep), // 35 503 GENXY(__NR_getitimer, sys_getitimer), // 36 504 GENX_(__NR_alarm, sys_alarm), // 37 505 GENXY(__NR_setitimer, sys_setitimer), // 38 506 GENX_(__NR_getpid, sys_getpid), // 39 507 508 LINXY(__NR_sendfile, sys_sendfile), // 40 509 LINXY(__NR_socket, sys_socket), // 41 510 LINX_(__NR_connect, sys_connect), // 42 511 LINXY(__NR_accept, sys_accept), // 43 512 LINX_(__NR_sendto, sys_sendto), // 44 513 514 LINXY(__NR_recvfrom, sys_recvfrom), // 45 515 LINX_(__NR_sendmsg, sys_sendmsg), // 46 516 LINXY(__NR_recvmsg, sys_recvmsg), // 47 517 LINX_(__NR_shutdown, sys_shutdown), // 48 518 LINX_(__NR_bind, sys_bind), // 49 519 520 LINX_(__NR_listen, sys_listen), // 50 521 LINXY(__NR_getsockname, sys_getsockname), // 51 522 LINXY(__NR_getpeername, sys_getpeername), // 52 523 LINXY(__NR_socketpair, sys_socketpair), // 53 524 LINX_(__NR_setsockopt, sys_setsockopt), // 54 525 526 LINXY(__NR_getsockopt, sys_getsockopt), // 55 527 LINX_(__NR_clone, sys_clone), // 56 528 GENX_(__NR_fork, sys_fork), // 57 529 GENX_(__NR_vfork, sys_fork), // 58 treat as fork 530 GENX_(__NR_execve, sys_execve), // 59 531 532 GENX_(__NR_exit, sys_exit), // 60 533 GENXY(__NR_wait4, sys_wait4), // 61 534 GENX_(__NR_kill, sys_kill), // 62 535 GENXY(__NR_uname, sys_newuname), // 63 536 LINX_(__NR_semget, sys_semget), // 64 537 538 LINX_(__NR_semop, sys_semop), // 65 539 LINXY(__NR_semctl, sys_semctl), // 66 540 LINXY(__NR_shmdt, sys_shmdt), // 67 541 LINX_(__NR_msgget, sys_msgget), // 68 542 LINX_(__NR_msgsnd, sys_msgsnd), // 69 543 544 LINXY(__NR_msgrcv, sys_msgrcv), // 70 545 LINXY(__NR_msgctl, sys_msgctl), // 71 546 LINXY(__NR_fcntl, sys_fcntl), // 72 547 GENX_(__NR_flock, sys_flock), // 73 548 GENX_(__NR_fsync, sys_fsync), // 74 549 550 GENX_(__NR_fdatasync, sys_fdatasync), // 75 551 GENX_(__NR_truncate, sys_truncate), // 76 552 GENX_(__NR_ftruncate, sys_ftruncate), // 77 553 GENXY(__NR_getdents, sys_getdents), // 78 554 GENXY(__NR_getcwd, sys_getcwd), // 79 555 556 GENX_(__NR_chdir, sys_chdir), // 80 557 GENX_(__NR_fchdir, sys_fchdir), // 81 558 GENX_(__NR_rename, sys_rename), // 82 559 GENX_(__NR_mkdir, sys_mkdir), // 83 560 GENX_(__NR_rmdir, sys_rmdir), // 84 561 562 GENXY(__NR_creat, sys_creat), // 85 563 GENX_(__NR_link, sys_link), // 86 564 GENX_(__NR_unlink, sys_unlink), // 87 565 GENX_(__NR_symlink, sys_symlink), // 88 566 GENX_(__NR_readlink, sys_readlink), // 89 567 568 GENX_(__NR_chmod, sys_chmod), // 90 569 GENX_(__NR_fchmod, sys_fchmod), // 91 570 GENX_(__NR_chown, sys_chown), // 92 571 GENX_(__NR_fchown, sys_fchown), // 93 572 GENX_(__NR_lchown, sys_lchown), // 94 573 574 GENX_(__NR_umask, sys_umask), // 95 575 GENXY(__NR_gettimeofday, sys_gettimeofday), // 96 576 GENXY(__NR_getrlimit, sys_getrlimit), // 97 577 GENXY(__NR_getrusage, sys_getrusage), // 98 578 LINXY(__NR_sysinfo, sys_sysinfo), // 99 579 580 GENXY(__NR_times, sys_times), // 100 581 PLAXY(__NR_ptrace, sys_ptrace), // 101 582 GENX_(__NR_getuid, sys_getuid), // 102 583 LINXY(__NR_syslog, sys_syslog), // 103 584 GENX_(__NR_getgid, sys_getgid), // 104 585 586 GENX_(__NR_setuid, sys_setuid), // 105 587 GENX_(__NR_setgid, sys_setgid), // 106 588 GENX_(__NR_geteuid, sys_geteuid), // 107 589 GENX_(__NR_getegid, sys_getegid), // 108 590 GENX_(__NR_setpgid, sys_setpgid), // 109 591 592 GENX_(__NR_getppid, sys_getppid), // 110 593 GENX_(__NR_getpgrp, sys_getpgrp), // 111 594 GENX_(__NR_setsid, sys_setsid), // 112 595 GENX_(__NR_setreuid, sys_setreuid), // 113 596 GENX_(__NR_setregid, sys_setregid), // 114 597 598 GENXY(__NR_getgroups, sys_getgroups), // 115 599 GENX_(__NR_setgroups, sys_setgroups), // 116 600 LINX_(__NR_setresuid, sys_setresuid), // 117 601 LINXY(__NR_getresuid, sys_getresuid), // 118 602 LINX_(__NR_setresgid, sys_setresgid), // 119 603 604 LINXY(__NR_getresgid, sys_getresgid), // 120 605 GENX_(__NR_getpgid, sys_getpgid), // 121 606 LINX_(__NR_setfsuid, sys_setfsuid), // 122 607 LINX_(__NR_setfsgid, sys_setfsgid), // 123 608 GENX_(__NR_getsid, sys_getsid), // 124 609 610 LINXY(__NR_capget, sys_capget), // 125 611 LINX_(__NR_capset, sys_capset), // 126 612 LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 127 613 LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait),// 128 614 LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),// 129 615 616 LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 130 617 GENXY(__NR_sigaltstack, sys_sigaltstack), // 131 618 LINX_(__NR_utime, sys_utime), // 132 619 GENX_(__NR_mknod, sys_mknod), // 133 620 // (__NR_uselib, sys_uselib), // 134 621 622 LINX_(__NR_personality, sys_personality), // 135 623 // (__NR_ustat, sys_ustat), // 136 624 GENXY(__NR_statfs, sys_statfs), // 137 625 GENXY(__NR_fstatfs, sys_fstatfs), // 138 626 // (__NR_sysfs, sys_sysfs), // 139 627 628 GENX_(__NR_getpriority, sys_getpriority), // 140 629 GENX_(__NR_setpriority, sys_setpriority), // 141 630 LINXY(__NR_sched_setparam, sys_sched_setparam), // 142 631 LINXY(__NR_sched_getparam, sys_sched_getparam), // 143 632 LINX_(__NR_sched_setscheduler, sys_sched_setscheduler), // 144 633 634 LINX_(__NR_sched_getscheduler, sys_sched_getscheduler), // 145 635 LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max), // 146 636 LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min), // 147 637 LINXY(__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 148 638 GENX_(__NR_mlock, sys_mlock), // 149 639 640 GENX_(__NR_munlock, sys_munlock), // 150 641 GENX_(__NR_mlockall, sys_mlockall), // 151 642 LINX_(__NR_munlockall, sys_munlockall), // 152 643 LINX_(__NR_vhangup, sys_vhangup), // 153 644 // (__NR_modify_ldt, sys_modify_ldt), // 154 645 646 LINX_(__NR_pivot_root, sys_pivot_root), // 155 647 LINXY(__NR__sysctl, sys_sysctl), // 156 648 LINXY(__NR_prctl, sys_prctl), // 157 649 PLAX_(__NR_arch_prctl, sys_arch_prctl), // 158 650 LINXY(__NR_adjtimex, sys_adjtimex), // 159 651 652 GENX_(__NR_setrlimit, sys_setrlimit), // 160 653 GENX_(__NR_chroot, sys_chroot), // 161 654 GENX_(__NR_sync, sys_sync), // 162 655 // (__NR_acct, sys_acct), // 163 656 GENX_(__NR_settimeofday, sys_settimeofday), // 164 657 658 LINX_(__NR_mount, sys_mount), // 165 659 LINX_(__NR_umount2, sys_umount), // 166 660 // (__NR_swapon, sys_swapon), // 167 661 // (__NR_swapoff, sys_swapoff), // 168 662 // (__NR_reboot, sys_reboot), // 169 663 664 GENX_(__NR_sethostname, sys_sethostname), // 170 665 // (__NR_setdomainname, sys_setdomainname), // 171 666 GENX_(__NR_iopl, sys_iopl), // 172 667 LINX_(__NR_ioperm, sys_ioperm), // 173 668 GENX_(__NR_create_module, sys_ni_syscall), // 174 669 670 LINX_(__NR_init_module, sys_init_module), // 175 671 LINX_(__NR_delete_module, sys_delete_module), // 176 672 // (__NR_get_kernel_syms, sys_ni_syscall), // 177 673 // (__NR_query_module, sys_ni_syscall), // 178 674 LINX_(__NR_quotactl, sys_quotactl), // 179 675 676 // (__NR_nfsservctl, sys_nfsservctl), // 180 677 // (__NR_getpmsg, sys_ni_syscall), // 181 678 // (__NR_putpmsg, sys_ni_syscall), // 182 679 // (__NR_afs_syscall, sys_ni_syscall), // 183 680 PLAXY(184, sys_syscall184), // 184 // sys_bproc? 681 682 // (__NR_security, sys_ni_syscall), // 185 683 LINX_(__NR_gettid, sys_gettid), // 186 684 LINX_(__NR_readahead, sys_readahead), // 187 685 LINX_(__NR_setxattr, sys_setxattr), // 188 686 LINX_(__NR_lsetxattr, sys_lsetxattr), // 189 687 688 LINX_(__NR_fsetxattr, sys_fsetxattr), // 190 689 LINXY(__NR_getxattr, sys_getxattr), // 191 690 LINXY(__NR_lgetxattr, sys_lgetxattr), // 192 691 LINXY(__NR_fgetxattr, sys_fgetxattr), // 193 692 LINXY(__NR_listxattr, sys_listxattr), // 194 693 694 LINXY(__NR_llistxattr, sys_llistxattr), // 195 695 LINXY(__NR_flistxattr, sys_flistxattr), // 196 696 LINX_(__NR_removexattr, sys_removexattr), // 197 697 LINX_(__NR_lremovexattr, sys_lremovexattr), // 198 698 LINX_(__NR_fremovexattr, sys_fremovexattr), // 199 699 700 LINXY(__NR_tkill, sys_tkill), // 200 701 GENXY(__NR_time, sys_time), /*was sys_time64*/ // 201 702 LINXY(__NR_futex, sys_futex), // 202 703 LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 203 704 LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 204 705 706 // (__NR_set_thread_area, sys_ni_syscall), // 205 707 LINXY(__NR_io_setup, sys_io_setup), // 206 708 LINX_(__NR_io_destroy, sys_io_destroy), // 207 709 LINXY(__NR_io_getevents, sys_io_getevents), // 208 710 LINX_(__NR_io_submit, sys_io_submit), // 209 711 712 LINXY(__NR_io_cancel, sys_io_cancel), // 210 713 // (__NR_get_thread_area, sys_ni_syscall), // 211 714 LINXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 212 715 LINXY(__NR_epoll_create, sys_epoll_create), // 213 716 // (__NR_epoll_ctl_old, sys_ni_syscall), // 214 717 718 // (__NR_epoll_wait_old, sys_ni_syscall), // 215 719 // (__NR_remap_file_pages, sys_remap_file_pages)// 216 720 GENXY(__NR_getdents64, sys_getdents64), // 217 721 LINX_(__NR_set_tid_address, sys_set_tid_address),// 218 722 // (__NR_restart_syscall, sys_restart_syscall),// 219 723 724 LINX_(__NR_semtimedop, sys_semtimedop), // 220 725 PLAX_(__NR_fadvise64, sys_fadvise64), // 221 726 LINXY(__NR_timer_create, sys_timer_create), // 222 727 LINXY(__NR_timer_settime, sys_timer_settime), // 223 728 LINXY(__NR_timer_gettime, sys_timer_gettime), // 224 729 730 LINX_(__NR_timer_getoverrun, sys_timer_getoverrun), // 225 731 LINX_(__NR_timer_delete, sys_timer_delete), // 226 732 LINX_(__NR_clock_settime, sys_clock_settime), // 227 733 LINXY(__NR_clock_gettime, sys_clock_gettime), // 228 734 LINXY(__NR_clock_getres, sys_clock_getres), // 229 735 736 LINXY(__NR_clock_nanosleep, sys_clock_nanosleep),// 230 737 LINX_(__NR_exit_group, sys_exit_group), // 231 738 LINXY(__NR_epoll_wait, sys_epoll_wait), // 232 739 LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 233 740 LINXY(__NR_tgkill, sys_tgkill), // 234 741 742 GENX_(__NR_utimes, sys_utimes), // 235 743 // (__NR_vserver, sys_ni_syscall), // 236 744 LINX_(__NR_mbind, sys_mbind), // 237 745 LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 238 746 LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 239 747 748 LINXY(__NR_mq_open, sys_mq_open), // 240 749 LINX_(__NR_mq_unlink, sys_mq_unlink), // 241 750 LINX_(__NR_mq_timedsend, sys_mq_timedsend), // 242 751 LINXY(__NR_mq_timedreceive, sys_mq_timedreceive),// 243 752 LINX_(__NR_mq_notify, sys_mq_notify), // 244 753 754 LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // 245 755 // (__NR_kexec_load, sys_ni_syscall), // 246 756 LINXY(__NR_waitid, sys_waitid), // 247 757 LINX_(__NR_add_key, sys_add_key), // 248 758 LINX_(__NR_request_key, sys_request_key), // 249 759 760 LINXY(__NR_keyctl, sys_keyctl), // 250 761 LINX_(__NR_ioprio_set, sys_ioprio_set), // 251 762 LINX_(__NR_ioprio_get, sys_ioprio_get), // 252 763 LINX_(__NR_inotify_init, sys_inotify_init), // 253 764 LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 254 765 766 LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 255 767 // LINX_(__NR_migrate_pages, sys_migrate_pages), // 256 768 LINXY(__NR_openat, sys_openat), // 257 769 LINX_(__NR_mkdirat, sys_mkdirat), // 258 770 LINX_(__NR_mknodat, sys_mknodat), // 259 771 772 LINX_(__NR_fchownat, sys_fchownat), // 260 773 LINX_(__NR_futimesat, sys_futimesat), // 261 774 LINXY(__NR_newfstatat, sys_newfstatat), // 262 775 LINX_(__NR_unlinkat, sys_unlinkat), // 263 776 LINX_(__NR_renameat, sys_renameat), // 264 777 778 LINX_(__NR_linkat, sys_linkat), // 265 779 LINX_(__NR_symlinkat, sys_symlinkat), // 266 780 LINX_(__NR_readlinkat, sys_readlinkat), // 267 781 LINX_(__NR_fchmodat, sys_fchmodat), // 268 782 LINX_(__NR_faccessat, sys_faccessat), // 269 783 784 LINXY(__NR_pselect6, sys_pselect6), // 270 785 LINXY(__NR_ppoll, sys_ppoll), // 271 786 LINX_(__NR_unshare, sys_unshare), // 272 787 LINX_(__NR_set_robust_list, sys_set_robust_list), // 273 788 LINXY(__NR_get_robust_list, sys_get_robust_list), // 274 789 790 LINX_(__NR_splice, sys_splice), // 275 791 LINX_(__NR_tee, sys_tee), // 276 792 LINX_(__NR_sync_file_range, sys_sync_file_range), // 277 793 LINXY(__NR_vmsplice, sys_vmsplice), // 278 794 LINXY(__NR_move_pages, sys_move_pages), // 279 795 796 LINX_(__NR_utimensat, sys_utimensat), // 280 797 LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 281 798 LINXY(__NR_signalfd, sys_signalfd), // 282 799 LINXY(__NR_timerfd_create, sys_timerfd_create), // 283 800 LINXY(__NR_eventfd, sys_eventfd), // 284 801 802 LINX_(__NR_fallocate, sys_fallocate), // 285 803 LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 286 804 LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 287 805 LINXY(__NR_accept4, sys_accept4), // 288 806 LINXY(__NR_signalfd4, sys_signalfd4), // 289 807 808 LINXY(__NR_eventfd2, sys_eventfd2), // 290 809 LINXY(__NR_epoll_create1, sys_epoll_create1), // 291 810 LINXY(__NR_dup3, sys_dup3), // 292 811 LINXY(__NR_pipe2, sys_pipe2), // 293 812 LINXY(__NR_inotify_init1, sys_inotify_init1), // 294 813 814 LINXY(__NR_preadv, sys_preadv), // 295 815 LINX_(__NR_pwritev, sys_pwritev), // 296 816 LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 297 817 LINXY(__NR_perf_event_open, sys_perf_event_open), // 298 818 LINXY(__NR_recvmmsg, sys_recvmmsg), // 299 819 820 LINXY(__NR_fanotify_init, sys_fanotify_init), // 300 821 LINX_(__NR_fanotify_mark, sys_fanotify_mark), // 301 822 LINXY(__NR_prlimit64, sys_prlimit64), // 302 823 LINXY(__NR_name_to_handle_at, sys_name_to_handle_at),// 303 824 LINXY(__NR_open_by_handle_at, sys_open_by_handle_at),// 304 825 826 LINXY(__NR_clock_adjtime, sys_clock_adjtime), // 305 827 LINX_(__NR_syncfs, sys_syncfs), // 306 828 LINXY(__NR_sendmmsg, sys_sendmmsg), // 307 829 // LINX_(__NR_setns, sys_ni_syscall), // 308 830 LINXY(__NR_getcpu, sys_getcpu), // 309 831 832 LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 310 833 LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 311 834 LINX_(__NR_kcmp, sys_kcmp), // 312 835 LINX_(__NR_finit_module, sys_finit_module), // 313 836 // LIN__(__NR_sched_setattr, sys_ni_syscall), // 314 837 838 // LIN__(__NR_sched_getattr, sys_ni_syscall), // 315 839 LINX_(__NR_renameat2, sys_renameat2), // 316 840 // LIN__(__NR_seccomp, sys_ni_syscall), // 317 841 LINXY(__NR_getrandom, sys_getrandom), // 318 842 LINXY(__NR_memfd_create, sys_memfd_create) // 319 843 844 // LIN__(__NR_kexec_file_load, sys_ni_syscall), // 320 845 // LIN__(__NR_bpf, sys_ni_syscall) // 321 846 }; 847 848 SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno ) 849 { 850 const UInt syscall_table_size 851 = sizeof(syscall_table) / sizeof(syscall_table[0]); 852 853 /* Is it in the contiguous initial section of the table? */ 854 if (sysno < syscall_table_size) { 855 SyscallTableEntry* sys = &syscall_table[sysno]; 856 if (sys->before == NULL) 857 return NULL; /* no entry */ 858 else 859 return sys; 860 } 861 862 /* Can't find a wrapper */ 863 return NULL; 864 } 865 866 #endif // defined(VGP_amd64_linux) 867 868 /*--------------------------------------------------------------------*/ 869 /*--- end ---*/ 870 /*--------------------------------------------------------------------*/ 871
