| |
| /*--------------------------------------------------------------------*/ |
| /*--- Platform-specific syscalls stuff. amd64-linux/syscalls.c ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2004 Nicholas Nethercote |
| njn25@cam.ac.uk |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| The GNU General Public License is contained in the file COPYING. |
| */ |
| |
| #include "core.h" |
| |
| // See the comment accompanying the declaration of VGA_(thread_syscall)() in |
| // coregrind/core.h for an explanation of what this does, and why. |
| // |
| // XXX: this function and these variables should be assembly code! See the |
| // x86 version. |
| const Addr VGA_(sys_before), VGA_(sys_restarted), |
| VGA_(sys_after), VGA_(sys_done); |
| void VGA_(do_thread_syscall)(UWord sys, |
| UWord arg1, UWord arg2, UWord arg3, |
| UWord arg4, UWord arg5, UWord arg6, |
| UWord *result, /*enum PXState*/Int *statep, |
| /*enum PXState*/Int poststate) |
| { |
| I_die_here; |
| } |
| |
| |
| // Back up to restart a system call. |
| void VGA_(restart_syscall)(ThreadArchState *arch) |
| { |
| #if 0 |
| arch->vex.guest_EIP -= 2; // sizeof(int $0x80) |
| |
| /* Make sure our caller is actually sane, and we're really backing |
| back over a syscall. |
| |
| int $0x80 == CD 80 |
| */ |
| { |
| UChar *p = (UChar *)arch->vex.guest_EIP; |
| |
| if (p[0] != 0xcd || p[1] != 0x80) |
| VG_(message)(Vg_DebugMsg, |
| "?! restarting over syscall at %p %02x %02x\n", |
| arch->vex.guest_EIP, p[0], p[1]); |
| |
| vg_assert(p[0] == 0xcd && p[1] == 0x80); |
| } |
| #endif |
| } |
| |
| /* --------------------------------------------------------------------- |
| PRE/POST wrappers for AMD64/Linux-specific syscalls |
| ------------------------------------------------------------------ */ |
| |
| // Nb: See the comment above the generic PRE/POST wrappers in |
| // coregrind/vg_syscalls.c for notes about how they work. |
| |
| #define PRE(name, f) PRE_TEMPLATE(static, amd64_linux, name, f) |
| #define POST(name) POST_TEMPLATE(static, amd64_linux, name) |
| |
| PRE(sys_arch_prctl, 0) |
| { |
| // Nb: this wrapper might actually need a corresponding POST wrapper, and |
| // also a non-0 flag in the line above. In other words, don't believe |
| // anything about the current stub implementation. |
| I_die_here; |
| } |
| |
| #undef PRE |
| #undef POST |
| |
| /* --------------------------------------------------------------------- |
| The AMD64/Linux syscall table |
| ------------------------------------------------------------------ */ |
| |
| // Macros for adding AMD64/Linux-specific wrappers to the syscall table. |
| #define PLAX_(const, name) SYS_WRAPPER_ENTRY_X_(amd64_linux, const, name) |
| #define PLAXY(const, name) SYS_WRAPPER_ENTRY_XY(amd64_linux, const, name) |
| |
| // This table maps from __NR_xxx syscall numbers (from |
| // linux/include/asm-x86_64/unistd.h) to the appropriate PRE/POST sys_foo() |
| // wrappers on AMD64 (as per sys_call_table in |
| // linux/arch/x86_64/kernel/entry.S). |
| // |
| // When implementing these wrappers, you need to work out if the wrapper is |
| // generic, Linux-only (but arch-independent), or AMD64/Linux only. |
| |
| const struct SyscallTableEntry VGA_(syscall_table)[] = { |
| // (__NR_read, sys_read), // 0 |
| // (__NR_write, sys_write), // 1 |
| // (__NR_open, sys_open), // 2 |
| // (__NR_close, sys_close), // 3 |
| // (__NR_stat, sys_newstat), // 4 |
| |
| // (__NR_fstat, sys_newfstat), // 5 |
| // (__NR_lstat, sys_newlstat), // 6 |
| // (__NR_poll, sys_poll), // 7 |
| // (__NR_lseek, sys_lseek), // 8 |
| // (__NR_mmap, sys_mmap), // 9 |
| |
| // (__NR_mprotect, sys_mprotect), // 10 |
| // (__NR_munmap, sys_munmap), // 11 |
| // (__NR_brk, sys_brk), // 12 |
| // (__NR_rt_sigaction, sys_rt_sigaction), // 13 |
| // (__NR_rt_sigprocmask, sys_rt_sigprocmask), // 14 |
| |
| // (__NR_rt_sigreturn, stub_rt_sigreturn), // 15 |
| // (__NR_ioctl, sys_ioctl), // 16 |
| // (__NR_pread64, sys_pread64), // 17 |
| // (__NR_pwrite64, sys_pwrite64), // 18 |
| // (__NR_readv, sys_readv), // 19 |
| |
| // (__NR_writev, sys_writev), // 20 |
| // (__NR_access, sys_access), // 21 |
| // (__NR_pipe, sys_pipe), // 22 |
| // (__NR_select, sys_select), // 23 |
| // (__NR_sched_yield, sys_sched_yield), // 24 |
| |
| // (__NR_mremap, sys_mremap), // 25 |
| // (__NR_msync, sys_msync), // 26 |
| // (__NR_mincore, sys_mincore), // 27 |
| // (__NR_madvise, sys_madvise), // 28 |
| // (__NR_shmget, sys_shmget), // 29 |
| |
| // (__NR_shmat, wrap_sys_shmat), // 30 |
| // (__NR_shmctl, sys_shmctl), // 31 |
| // (__NR_dup, sys_dup), // 32 |
| // (__NR_dup2, sys_dup2), // 33 |
| // (__NR_pause, sys_pause), // 34 |
| |
| // (__NR_nanosleep, sys_nanosleep), // 35 |
| // (__NR_getitimer, sys_getitimer), // 36 |
| // (__NR_alarm, sys_alarm), // 37 |
| // (__NR_setitimer, sys_setitimer), // 38 |
| // (__NR_getpid, sys_getpid), // 39 |
| |
| // (__NR_sendfile, sys_sendfile64), // 40 |
| // (__NR_socket, sys_socket), // 41 |
| // (__NR_connect, sys_connect), // 42 |
| // (__NR_accept, sys_accept), // 43 |
| // (__NR_sendto, sys_sendto), // 44 |
| |
| // (__NR_recvfrom, sys_recvfrom), // 45 |
| // (__NR_sendmsg, sys_sendmsg), // 46 |
| // (__NR_recvmsg, sys_recvmsg), // 47 |
| // (__NR_shutdown, sys_shutdown), // 48 |
| // (__NR_bind, sys_bind), // 49 |
| |
| // (__NR_listen, sys_listen), // 50 |
| // (__NR_getsockname, sys_getsockname), // 51 |
| // (__NR_getpeername, sys_getpeername), // 52 |
| // (__NR_socketpair, sys_socketpair), // 53 |
| // (__NR_setsockopt, sys_setsockopt), // 54 |
| |
| // (__NR_getsockopt, sys_getsockopt), // 55 |
| // (__NR_clone, stub_clone), // 56 |
| // (__NR_fork, stub_fork), // 57 |
| // (__NR_vfork, stub_vfork), // 58 |
| // (__NR_execve, stub_execve), // 59 |
| |
| GENX_(__NR_exit, sys_exit), // 60 |
| // (__NR_wait4, sys_wait4), // 61 |
| // (__NR_kill, sys_kill), // 62 |
| // (__NR_uname, sys_uname), // 63 |
| // (__NR_semget, sys_semget), // 64 |
| |
| // (__NR_semop, sys_semop), // 65 |
| // (__NR_semctl, sys_semctl), // 66 |
| // (__NR_shmdt, sys_shmdt), // 67 |
| // (__NR_msgget, sys_msgget), // 68 |
| // (__NR_msgsnd, sys_msgsnd), // 69 |
| |
| // (__NR_msgrcv, sys_msgrcv), // 70 |
| // (__NR_msgctl, sys_msgctl), // 71 |
| // (__NR_fcntl, sys_fcntl), // 72 |
| // (__NR_flock, sys_flock), // 73 |
| // (__NR_fsync, sys_fsync), // 74 |
| |
| // (__NR_fdatasync, sys_fdatasync), // 75 |
| // (__NR_truncate, sys_truncate), // 76 |
| // (__NR_ftruncate, sys_ftruncate), // 77 |
| // (__NR_getdents, sys_getdents), // 78 |
| // (__NR_getcwd, sys_getcwd), // 79 |
| |
| // (__NR_chdir, sys_chdir), // 80 |
| // (__NR_fchdir, sys_fchdir), // 81 |
| // (__NR_rename, sys_rename), // 82 |
| // (__NR_mkdir, sys_mkdir), // 83 |
| // (__NR_rmdir, sys_rmdir), // 84 |
| |
| // (__NR_creat, sys_creat), // 85 |
| // (__NR_link, sys_link), // 86 |
| // (__NR_unlink, sys_unlink), // 87 |
| // (__NR_symlink, sys_symlink), // 88 |
| // (__NR_readlink, sys_readlink), // 89 |
| |
| // (__NR_chmod, sys_chmod), // 90 |
| // (__NR_fchmod, sys_fchmod), // 91 |
| // (__NR_chown, sys_chown), // 92 |
| // (__NR_fchown, sys_fchown), // 93 |
| // (__NR_lchown, sys_lchown), // 94 |
| |
| // (__NR_umask, sys_umask), // 95 |
| // (__NR_gettimeofday, sys_gettimeofday), // 96 |
| // (__NR_getrlimit, sys_getrlimit), // 97 |
| // (__NR_getrusage, sys_getrusage), // 98 |
| // (__NR_sysinfo, sys_sysinfo), // 99 |
| |
| // (__NR_times, sys_times), // 100 |
| // (__NR_ptrace, sys_ptrace), // 101 |
| // (__NR_getuid, sys_getuid), // 102 |
| // (__NR_syslog, sys_syslog), // 103 |
| // (__NR_getgid, sys_getgid), // 104 |
| |
| // (__NR_setuid, sys_setuid), // 105 |
| // (__NR_setgid, sys_setgid), // 106 |
| // (__NR_geteuid, sys_geteuid), // 107 |
| // (__NR_getegid, sys_getegid), // 108 |
| // (__NR_setpgid, sys_setpgid), // 109 |
| |
| // (__NR_getppid, sys_getppid), // 110 |
| // (__NR_getpgrp, sys_getpgrp), // 111 |
| // (__NR_setsid, sys_setsid), // 112 |
| // (__NR_setreuid, sys_setreuid), // 113 |
| // (__NR_setregid, sys_setregid), // 114 |
| |
| // (__NR_getgroups, sys_getgroups), // 115 |
| // (__NR_setgroups, sys_setgroups), // 116 |
| // (__NR_setresuid, sys_setresuid), // 117 |
| // (__NR_getresuid, sys_getresuid), // 118 |
| // (__NR_setresgid, sys_setresgid), // 119 |
| |
| // (__NR_getresgid, sys_getresgid), // 120 |
| // (__NR_getpgid, sys_getpgid), // 121 |
| // (__NR_setfsuid, sys_setfsuid), // 122 |
| // (__NR_setfsgid, sys_setfsgid), // 123 |
| // (__NR_getsid, sys_getsid), // 124 |
| |
| // (__NR_capget, sys_capget), // 125 |
| // (__NR_capset, sys_capset), // 126 |
| // (__NR_rt_sigpending, sys_rt_sigpending), // 127 |
| // (__NR_rt_sigtimedwait, sys_rt_sigtimedwait),// 128 |
| // (__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),// 129 |
| |
| // (__NR_rt_sigsuspend, stub_rt_sigsuspend), // 130 |
| // (__NR_sigaltstack, stub_sigaltstack), // 131 |
| // (__NR_utime, sys_utime), // 132 |
| // (__NR_mknod, sys_mknod), // 133 |
| // (__NR_uselib, sys_uselib), // 134 |
| |
| // (__NR_personality, sys_personality), // 135 |
| // (__NR_ustat, sys_ustat), // 136 |
| // (__NR_statfs, sys_statfs), // 137 |
| // (__NR_fstatfs, sys_fstatfs), // 138 |
| // (__NR_sysfs, sys_sysfs), // 139 |
| |
| // (__NR_getpriority, sys_getpriority), // 140 |
| // (__NR_setpriority, sys_setpriority), // 141 |
| // (__NR_sched_setparam, sys_sched_setparam), // 142 |
| // (__NR_sched_getparam, sys_sched_getparam), // 143 |
| // (__NR_sched_setscheduler, sys_sched_setscheduler), // 144 |
| |
| // (__NR_sched_getscheduler, sys_sched_getscheduler), // 145 |
| // (__NR_sched_get_priority_max, sys_sched_get_priority_max), // 146 |
| // (__NR_sched_get_priority_min, sys_sched_get_priority_min), // 147 |
| // (__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 148 |
| // (__NR_mlock, sys_mlock), // 149 |
| |
| // (__NR_munlock, sys_munlock), // 150 |
| // (__NR_mlockall, sys_mlockall), // 151 |
| // (__NR_munlockall, sys_munlockall), // 152 |
| // (__NR_vhangup, sys_vhangup), // 153 |
| // (__NR_modify_ldt, sys_modify_ldt), // 154 |
| |
| // (__NR_pivot_root, sys_pivot_root), // 155 |
| // (__NR__sysctl, sys_sysctl), // 156 |
| // (__NR_prctl, sys_prctl), // 157 |
| PLAX_(__NR_arch_prctl, sys_arch_prctl), // 158 |
| // (__NR_adjtimex, sys_adjtimex), // 159 |
| |
| // (__NR_setrlimit, sys_setrlimit), // 160 |
| // (__NR_chroot, sys_chroot), // 161 |
| // (__NR_sync, sys_sync), // 162 |
| // (__NR_acct, sys_acct), // 163 |
| // (__NR_settimeofday, sys_settimeofday), // 164 |
| |
| LINX_(__NR_mount, sys_mount), // 165 |
| // (__NR_umount2, sys_umount), // 166 |
| // (__NR_swapon, sys_swapon), // 167 |
| // (__NR_swapoff, sys_swapoff), // 168 |
| // (__NR_reboot, sys_reboot), // 169 |
| |
| // (__NR_sethostname, sys_sethostname), // 170 |
| // (__NR_setdomainname, sys_setdomainname), // 171 |
| // (__NR_iopl, stub_iopl), // 172 |
| // (__NR_ioperm, sys_ioperm), // 173 |
| // (__NR_create_module, sys_ni_syscall), // 174 |
| |
| // (__NR_init_module, sys_init_module), // 175 |
| // (__NR_delete_module, sys_delete_module), // 176 |
| // (__NR_get_kernel_syms, sys_ni_syscall), // 177 |
| // (__NR_query_module, sys_ni_syscall), // 178 |
| // (__NR_quotactl, sys_quotactl), // 179 |
| |
| // (__NR_nfsservctl, sys_nfsservctl), // 180 |
| // (__NR_getpmsg, sys_ni_syscall), // 181 |
| // (__NR_putpmsg, sys_ni_syscall), // 182 |
| // (__NR_afs_syscall, sys_ni_syscall), // 183 |
| // (__NR_tuxcall, sys_ni_syscall), // 184 |
| |
| // (__NR_security, sys_ni_syscall), // 185 |
| // (__NR_gettid, sys_gettid), // 186 |
| // (__NR_readahead, sys_readahead), // 187 |
| // (__NR_setxattr, sys_setxattr), // 188 |
| // (__NR_lsetxattr, sys_lsetxattr), // 189 |
| |
| // (__NR_fsetxattr, sys_fsetxattr), // 190 |
| // (__NR_getxattr, sys_getxattr), // 191 |
| // (__NR_lgetxattr, sys_lgetxattr), // 192 |
| // (__NR_fgetxattr, sys_fgetxattr), // 193 |
| // (__NR_listxattr, sys_listxattr), // 194 |
| |
| // (__NR_llistxattr, sys_llistxattr), // 195 |
| // (__NR_flistxattr, sys_flistxattr), // 196 |
| // (__NR_removexattr, sys_removexattr), // 197 |
| // (__NR_lremovexattr, sys_lremovexattr), // 198 |
| // (__NR_fremovexattr, sys_fremovexattr), // 199 |
| |
| // (__NR_tkill, sys_tkill), // 200 |
| // (__NR_time, sys_time64), // 201 |
| // (__NR_futex, sys_futex), // 202 |
| // (__NR_sched_setaffinity, sys_sched_setaffinity), // 203 |
| // (__NR_sched_getaffinity, sys_sched_getaffinity), // 204 |
| |
| // (__NR_set_thread_area, sys_ni_syscall), // 205 |
| // (__NR_io_setup, sys_io_setup), // 206 |
| // (__NR_io_destroy, sys_io_destroy), // 207 |
| // (__NR_io_getevents, sys_io_getevents), // 208 |
| // (__NR_io_submit, sys_io_submit), // 209 |
| |
| // (__NR_io_cancel, sys_io_cancel), // 210 |
| // (__NR_get_thread_area, sys_ni_syscall), // 211 |
| // (__NR_lookup_dcookie, sys_lookup_dcookie), // 212 |
| // (__NR_epoll_create, sys_epoll_create), // 213 |
| // (__NR_epoll_ctl_old, sys_ni_syscall), // 214 |
| |
| // (__NR_epoll_wait_old, sys_ni_syscall), // 215 |
| // (__NR_remap_file_pages, sys_remap_file_pages)// 216 |
| // (__NR_getdents64, sys_getdents64), // 217 |
| // (__NR_set_tid_address, sys_set_tid_address),// 218 |
| // (__NR_restart_syscall, sys_restart_syscall),// 219 |
| |
| // (__NR_semtimedop, sys_semtimedop), // 220 |
| // (__NR_fadvise64, sys_fadvise64), // 221 |
| // (__NR_timer_create, sys_timer_create), // 222 |
| // (__NR_timer_settime, sys_timer_settime), // 223 |
| // (__NR_timer_gettime, sys_timer_gettime), // 224 |
| |
| // (__NR_timer_getoverrun, sys_timer_getoverrun)// 225 |
| // (__NR_timer_delete, sys_timer_delete), // 226 |
| // (__NR_clock_settime, sys_clock_settime), // 227 |
| // (__NR_clock_gettime, sys_clock_gettime), // 228 |
| // (__NR_clock_getres, sys_clock_getres), // 229 |
| |
| // (__NR_clock_nanosleep, sys_clock_nanosleep),// 230 |
| // (__NR_exit_group, sys_exit_group), // 231 |
| // (__NR_epoll_wait, sys_epoll_wait), // 232 |
| // (__NR_epoll_ctl, sys_epoll_ctl), // 233 |
| // (__NR_tgkill, sys_tgkill), // 234 |
| |
| // (__NR_utimes, sys_utimes), // 235 |
| // (__NR_vserver, sys_ni_syscall), // 236 |
| // (__NR_vserver, sys_ni_syscall), // 236 |
| // (__NR_mbind, sys_mbind), // 237 |
| // (__NR_set_mempolicy, sys_set_mempolicy), // 238 |
| |
| // (__NR_get_mempolicy, sys_get_mempolicy), // 239 |
| // (__NR_mq_open, sys_mq_open), // 240 |
| // (__NR_mq_unlink, sys_mq_unlink), // 241 |
| // (__NR_mq_timedsend, sys_mq_timedsend), // 242 |
| // (__NR_mq_timedreceive, sys_mq_timedreceive),// 243 |
| |
| // (__NR_mq_notify, sys_mq_notify), // 244 |
| // (__NR_mq_getsetattr, sys_mq_getsetattr), // 245 |
| // (__NR_kexec_load, sys_ni_syscall), // 246 |
| // (__NR_waitid, sys_waitid), // 247 |
| }; |
| |
| const UInt VGA_(syscall_table_size) = |
| sizeof(VGA_(syscall_table)) / sizeof(VGA_(syscall_table)[0]); |
| |
| void VG_(clear_TLS_for_thread) ( VgLdtEntry* tls ) |
| { |
| } |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |