| |
| /*--------------------------------------------------------------------*/ |
| /*--- Platform-specific syscalls stuff. syswrap-amd64-linux.c ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2015 Nicholas Nethercote |
| njn@valgrind.org |
| |
| 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. |
| */ |
| |
| #if defined(VGP_amd64_linux) |
| |
| #include "pub_core_basics.h" |
| #include "pub_core_vki.h" |
| #include "pub_core_vkiscnums.h" |
| #include "pub_core_threadstate.h" |
| #include "pub_core_aspacemgr.h" |
| #include "pub_core_debuglog.h" |
| #include "pub_core_options.h" |
| #include "pub_core_libcbase.h" |
| #include "pub_core_libcassert.h" |
| #include "pub_core_libcprint.h" |
| #include "pub_core_libcproc.h" |
| #include "pub_core_libcsignal.h" |
| #include "pub_core_scheduler.h" |
| #include "pub_core_sigframe.h" |
| #include "pub_core_signals.h" |
| #include "pub_core_syscall.h" |
| #include "pub_core_syswrap.h" |
| #include "pub_core_tooliface.h" |
| |
| #include "priv_types_n_macros.h" |
| #include "priv_syswrap-generic.h" /* for decls of generic wrappers */ |
| #include "priv_syswrap-linux.h" /* for decls of linux-ish wrappers */ |
| #include "priv_syswrap-linux-variants.h" /* decls of linux variant wrappers */ |
| #include "priv_syswrap-main.h" |
| |
| |
| /* --------------------------------------------------------------------- |
| clone() handling |
| ------------------------------------------------------------------ */ |
| |
| /* Call f(arg1), but first switch stacks, using 'stack' as the new |
| stack, and use 'retaddr' as f's return-to address. Also, clear all |
| the integer registers before entering f. */ |
| __attribute__((noreturn)) |
| void ML_(call_on_new_stack_0_1) ( Addr stack, |
| Addr retaddr, |
| void (*f)(Word), |
| Word arg1 ); |
| // %rdi == stack |
| // %rsi == retaddr |
| // %rdx == f |
| // %rcx == arg1 |
| asm( |
| ".text\n" |
| ".globl vgModuleLocal_call_on_new_stack_0_1\n" |
| "vgModuleLocal_call_on_new_stack_0_1:\n" |
| " movq %rdi, %rsp\n" // set stack |
| " pushq %rsi\n" // retaddr to stack |
| " pushq %rdx\n" // f to stack |
| " pushq %rcx\n" // arg1 to stack |
| " movq $0, %rax\n" // zero all GP regs |
| " movq $0, %rbx\n" |
| " movq $0, %rcx\n" |
| " movq $0, %rdx\n" |
| " movq $0, %rsi\n" |
| " movq $0, %rdi\n" |
| " movq $0, %rbp\n" |
| " movq $0, %r8\n" |
| " movq $0, %r9\n" |
| " movq $0, %r10\n" |
| " movq $0, %r11\n" |
| " movq $0, %r12\n" |
| " movq $0, %r13\n" |
| " movq $0, %r14\n" |
| " movq $0, %r15\n" |
| " popq %rdi\n" // arg1 to correct arg reg |
| " ret\n" // jump to f |
| " ud2\n" // should never get here |
| ".previous\n" |
| ); |
| |
| /* |
| Perform a clone system call. clone is strange because it has |
| fork()-like return-twice semantics, so it needs special |
| handling here. |
| |
| Upon entry, we have: |
| |
| int (*fn)(void*) in %rdi |
| void* child_stack in %rsi |
| int flags in %rdx |
| void* arg in %rcx |
| pid_t* child_tid in %r8 |
| pid_t* parent_tid in %r9 |
| void* tls_ptr at 8(%rsp) |
| |
| System call requires: |
| |
| int $__NR_clone in %rax |
| int flags in %rdi |
| void* child_stack in %rsi |
| pid_t* parent_tid in %rdx |
| pid_t* child_tid in %r10 |
| void* tls_ptr in %r8 |
| |
| Returns a Long encoded in the linux-amd64 way, not a SysRes. |
| */ |
| #define __NR_CLONE VG_STRINGIFY(__NR_clone) |
| #define __NR_EXIT VG_STRINGIFY(__NR_exit) |
| |
| extern |
| Long do_syscall_clone_amd64_linux ( Word (*fn)(void *), |
| void* stack, |
| Long flags, |
| void* arg, |
| Long* child_tid, |
| Long* parent_tid, |
| vki_modify_ldt_t * ); |
| asm( |
| ".text\n" |
| ".globl do_syscall_clone_amd64_linux\n" |
| "do_syscall_clone_amd64_linux:\n" |
| // set up child stack, temporarily preserving fn and arg |
| " subq $16, %rsi\n" // make space on stack |
| " movq %rcx, 8(%rsi)\n" // save arg |
| " movq %rdi, 0(%rsi)\n" // save fn |
| |
| // setup syscall |
| " movq $"__NR_CLONE", %rax\n" // syscall number |
| " movq %rdx, %rdi\n" // syscall arg1: flags |
| // %rsi already setup // syscall arg2: child_stack |
| " movq %r9, %rdx\n" // syscall arg3: parent_tid |
| " movq %r8, %r10\n" // syscall arg4: child_tid |
| " movq 8(%rsp), %r8\n" // syscall arg5: tls_ptr |
| |
| " syscall\n" // clone() |
| |
| " testq %rax, %rax\n" // child if retval == 0 |
| " jnz 1f\n" |
| |
| // CHILD - call thread function |
| " pop %rax\n" // pop fn |
| " pop %rdi\n" // pop fn arg1: arg |
| " call *%rax\n" // call fn |
| |
| // exit with result |
| " movq %rax, %rdi\n" // arg1: return value from fn |
| " movq $"__NR_EXIT", %rax\n" |
| |
| " syscall\n" |
| |
| // Exit returned?! |
| " ud2\n" |
| |
| "1:\n" // PARENT or ERROR |
| " ret\n" |
| ".previous\n" |
| ); |
| |
| #undef __NR_CLONE |
| #undef __NR_EXIT |
| |
| |
| // forward declaration |
| static void setup_child ( ThreadArchState*, ThreadArchState* ); |
| |
| /* |
| When a client clones, we need to keep track of the new thread. This means: |
| 1. allocate a ThreadId+ThreadState+stack for the thread |
| |
| 2. initialize the thread's new VCPU state |
| |
| 3. create the thread using the same args as the client requested, |
| but using the scheduler entrypoint for EIP, and a separate stack |
| for ESP. |
| */ |
| static SysRes do_clone ( ThreadId ptid, |
| ULong flags, Addr rsp, |
| Long* parent_tidptr, |
| Long* child_tidptr, |
| Addr tlsaddr ) |
| { |
| static const Bool debug = False; |
| |
| ThreadId ctid = VG_(alloc_ThreadState)(); |
| ThreadState* ptst = VG_(get_ThreadState)(ptid); |
| ThreadState* ctst = VG_(get_ThreadState)(ctid); |
| UWord* stack; |
| SysRes res; |
| Long rax; |
| vki_sigset_t blockall, savedmask; |
| |
| VG_(sigfillset)(&blockall); |
| |
| vg_assert(VG_(is_running_thread)(ptid)); |
| vg_assert(VG_(is_valid_tid)(ctid)); |
| |
| stack = (UWord*)ML_(allocstack)(ctid); |
| if (stack == NULL) { |
| res = VG_(mk_SysRes_Error)( VKI_ENOMEM ); |
| goto out; |
| } |
| |
| /* Copy register state |
| |
| Both parent and child return to the same place, and the code |
| following the clone syscall works out which is which, so we |
| don't need to worry about it. |
| |
| The parent gets the child's new tid returned from clone, but the |
| child gets 0. |
| |
| If the clone call specifies a NULL rsp for the new thread, then |
| it actually gets a copy of the parent's rsp. |
| */ |
| setup_child( &ctst->arch, &ptst->arch ); |
| |
| /* Make sys_clone appear to have returned Success(0) in the |
| child. */ |
| ctst->arch.vex.guest_RAX = 0; |
| |
| if (rsp != 0) |
| ctst->arch.vex.guest_RSP = rsp; |
| |
| ctst->os_state.parent = ptid; |
| |
| /* inherit signal mask */ |
| ctst->sig_mask = ptst->sig_mask; |
| ctst->tmp_sig_mask = ptst->sig_mask; |
| |
| /* Start the child with its threadgroup being the same as the |
| parent's. This is so that any exit_group calls that happen |
| after the child is created but before it sets its |
| os_state.threadgroup field for real (in thread_wrapper in |
| syswrap-linux.c), really kill the new thread. a.k.a this avoids |
| a race condition in which the thread is unkillable (via |
| exit_group) because its threadgroup is not set. The race window |
| is probably only a few hundred or a few thousand cycles long. |
| See #226116. */ |
| ctst->os_state.threadgroup = ptst->os_state.threadgroup; |
| |
| ML_(guess_and_register_stack) (rsp, ctst); |
| |
| /* Assume the clone will succeed, and tell any tool that wants to |
| know that this thread has come into existence. If the clone |
| fails, we'll send out a ll_exit notification for it at the out: |
| label below, to clean up. */ |
| vg_assert(VG_(owns_BigLock_LL)(ptid)); |
| VG_TRACK ( pre_thread_ll_create, ptid, ctid ); |
| |
| if (flags & VKI_CLONE_SETTLS) { |
| if (debug) |
| VG_(printf)("clone child has SETTLS: tls at %#lx\n", tlsaddr); |
| ctst->arch.vex.guest_FS_CONST = tlsaddr; |
| } |
| |
| flags &= ~VKI_CLONE_SETTLS; |
| |
| /* start the thread with everything blocked */ |
| VG_(sigprocmask)(VKI_SIG_SETMASK, &blockall, &savedmask); |
| |
| /* Create the new thread */ |
| rax = do_syscall_clone_amd64_linux( |
| ML_(start_thread_NORETURN), stack, flags, &VG_(threads)[ctid], |
| child_tidptr, parent_tidptr, NULL |
| ); |
| res = VG_(mk_SysRes_amd64_linux)( rax ); |
| |
| VG_(sigprocmask)(VKI_SIG_SETMASK, &savedmask, NULL); |
| |
| out: |
| if (sr_isError(res)) { |
| /* clone failed */ |
| VG_(cleanup_thread)(&ctst->arch); |
| ctst->status = VgTs_Empty; |
| /* oops. Better tell the tool the thread exited in a hurry :-) */ |
| VG_TRACK( pre_thread_ll_exit, ctid ); |
| } |
| |
| return res; |
| } |
| |
| |
| /* --------------------------------------------------------------------- |
| More thread stuff |
| ------------------------------------------------------------------ */ |
| |
| void VG_(cleanup_thread) ( ThreadArchState *arch ) |
| { |
| } |
| |
| void setup_child ( /*OUT*/ ThreadArchState *child, |
| /*IN*/ ThreadArchState *parent ) |
| { |
| /* We inherit our parent's guest state. */ |
| child->vex = parent->vex; |
| child->vex_shadow1 = parent->vex_shadow1; |
| child->vex_shadow2 = parent->vex_shadow2; |
| } |
| |
| |
| /* --------------------------------------------------------------------- |
| PRE/POST wrappers for AMD64/Linux-specific syscalls |
| ------------------------------------------------------------------ */ |
| |
| #define PRE(name) DEFN_PRE_TEMPLATE(amd64_linux, name) |
| #define POST(name) DEFN_POST_TEMPLATE(amd64_linux, name) |
| |
| /* Add prototypes for the wrappers declared here, so that gcc doesn't |
| harass us for not having prototypes. Really this is a kludge -- |
| the right thing to do is to make these wrappers 'static' since they |
| aren't visible outside this file, but that requires even more macro |
| magic. */ |
| DECL_TEMPLATE(amd64_linux, sys_clone); |
| DECL_TEMPLATE(amd64_linux, sys_rt_sigreturn); |
| DECL_TEMPLATE(amd64_linux, sys_arch_prctl); |
| DECL_TEMPLATE(amd64_linux, sys_ptrace); |
| DECL_TEMPLATE(amd64_linux, sys_fadvise64); |
| DECL_TEMPLATE(amd64_linux, sys_mmap); |
| DECL_TEMPLATE(amd64_linux, sys_syscall184); |
| |
| |
| PRE(sys_clone) |
| { |
| ULong cloneflags; |
| |
| PRINT("sys_clone ( %lx, %#lx, %#lx, %#lx, %#lx )",ARG1,ARG2,ARG3,ARG4,ARG5); |
| PRE_REG_READ2(int, "clone", |
| unsigned long, flags, |
| void *, child_stack); |
| |
| if (ARG1 & VKI_CLONE_PARENT_SETTID) { |
| if (VG_(tdict).track_pre_reg_read) { |
| PRA3("clone", int *, parent_tidptr); |
| } |
| PRE_MEM_WRITE("clone(parent_tidptr)", ARG3, sizeof(Int)); |
| if (!VG_(am_is_valid_for_client)(ARG3, sizeof(Int), VKI_PROT_WRITE)) { |
| SET_STATUS_Failure( VKI_EFAULT ); |
| return; |
| } |
| } |
| if (ARG1 & VKI_CLONE_SETTLS) { |
| if (VG_(tdict).track_pre_reg_read) { |
| PRA4("clone", vki_modify_ldt_t *, tlsinfo); |
| } |
| PRE_MEM_READ("clone(tlsinfo)", ARG4, sizeof(vki_modify_ldt_t)); |
| if (!VG_(am_is_valid_for_client)(ARG4, sizeof(vki_modify_ldt_t), |
| VKI_PROT_READ)) { |
| SET_STATUS_Failure( VKI_EFAULT ); |
| return; |
| } |
| } |
| if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID)) { |
| if (VG_(tdict).track_pre_reg_read) { |
| PRA5("clone", int *, child_tidptr); |
| } |
| PRE_MEM_WRITE("clone(child_tidptr)", ARG4, sizeof(Int)); |
| if (!VG_(am_is_valid_for_client)(ARG4, sizeof(Int), VKI_PROT_WRITE)) { |
| SET_STATUS_Failure( VKI_EFAULT ); |
| return; |
| } |
| } |
| |
| cloneflags = ARG1; |
| |
| if (!ML_(client_signal_OK)(ARG1 & VKI_CSIGNAL)) { |
| SET_STATUS_Failure( VKI_EINVAL ); |
| return; |
| } |
| |
| /* Only look at the flags we really care about */ |
| switch (cloneflags & (VKI_CLONE_VM | VKI_CLONE_FS |
| | VKI_CLONE_FILES | VKI_CLONE_VFORK)) { |
| case VKI_CLONE_VM | VKI_CLONE_FS | VKI_CLONE_FILES: |
| /* thread creation */ |
| SET_STATUS_from_SysRes( |
| do_clone(tid, |
| ARG1, /* flags */ |
| (Addr)ARG2, /* child ESP */ |
| (Long *)ARG3, /* parent_tidptr */ |
| (Long *)ARG4, /* child_tidptr */ |
| (Addr)ARG5)); /* set_tls */ |
| break; |
| |
| case VKI_CLONE_VFORK | VKI_CLONE_VM: /* vfork */ |
| /* FALLTHROUGH - assume vfork == fork */ |
| cloneflags &= ~(VKI_CLONE_VFORK | VKI_CLONE_VM); |
| |
| case 0: /* plain fork */ |
| SET_STATUS_from_SysRes( |
| ML_(do_fork_clone)(tid, |
| cloneflags, /* flags */ |
| (Int *)ARG3, /* parent_tidptr */ |
| (Int *)ARG4)); /* child_tidptr */ |
| break; |
| |
| default: |
| /* should we just ENOSYS? */ |
| VG_(message)(Vg_UserMsg, |
| "Unsupported clone() flags: 0x%lx\n", ARG1); |
| VG_(message)(Vg_UserMsg, |
| "\n"); |
| VG_(message)(Vg_UserMsg, |
| "The only supported clone() uses are:\n"); |
| VG_(message)(Vg_UserMsg, |
| " - via a threads library (LinuxThreads or NPTL)\n"); |
| VG_(message)(Vg_UserMsg, |
| " - via the implementation of fork or vfork\n"); |
| VG_(unimplemented) |
| ("Valgrind does not support general clone()."); |
| } |
| |
| if (SUCCESS) { |
| if (ARG1 & VKI_CLONE_PARENT_SETTID) |
| POST_MEM_WRITE(ARG3, sizeof(Int)); |
| if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID)) |
| POST_MEM_WRITE(ARG4, sizeof(Int)); |
| |
| /* Thread creation was successful; let the child have the chance |
| to run */ |
| *flags |= SfYieldAfter; |
| } |
| } |
| |
| PRE(sys_rt_sigreturn) |
| { |
| /* This isn't really a syscall at all - it's a misuse of the |
| syscall mechanism by m_sigframe. VG_(sigframe_create) sets the |
| return address of the signal frames it creates to be a short |
| piece of code which does this "syscall". The only purpose of |
| the syscall is to call VG_(sigframe_destroy), which restores the |
| thread's registers from the frame and then removes it. |
| Consequently we must ask the syswrap driver logic not to write |
| back the syscall "result" as that would overwrite the |
| just-restored register state. */ |
| |
| ThreadState* tst; |
| PRINT("sys_rt_sigreturn ( )"); |
| |
| vg_assert(VG_(is_valid_tid)(tid)); |
| vg_assert(tid >= 1 && tid < VG_N_THREADS); |
| vg_assert(VG_(is_running_thread)(tid)); |
| |
| /* Adjust RSP to point to start of frame; skip back up over handler |
| ret addr */ |
| tst = VG_(get_ThreadState)(tid); |
| tst->arch.vex.guest_RSP -= sizeof(Addr); |
| |
| /* This is only so that the RIP is (might be) useful to report if |
| something goes wrong in the sigreturn. JRS 20070318: no idea |
| what this is for */ |
| ML_(fixup_guest_state_to_restart_syscall)(&tst->arch); |
| |
| /* Restore register state from frame and remove it, as |
| described above */ |
| VG_(sigframe_destroy)(tid, True); |
| |
| /* Tell the driver not to update the guest state with the "result", |
| and set a bogus result to keep it happy. */ |
| *flags |= SfNoWriteResult; |
| SET_STATUS_Success(0); |
| |
| /* Check to see if any signals arose as a result of this. */ |
| *flags |= SfPollAfter; |
| } |
| |
| PRE(sys_arch_prctl) |
| { |
| ThreadState* tst; |
| PRINT( "arch_prctl ( %ld, %lx )", SARG1, ARG2 ); |
| |
| vg_assert(VG_(is_valid_tid)(tid)); |
| vg_assert(tid >= 1 && tid < VG_N_THREADS); |
| vg_assert(VG_(is_running_thread)(tid)); |
| |
| // Nb: can't use "ARG2".."ARG5" here because that's our own macro... |
| PRE_REG_READ2(long, "arch_prctl", |
| int, option, unsigned long, arg2); |
| // XXX: totally wrong... we need to look at the 'option' arg, and do |
| // PRE_MEM_READs/PRE_MEM_WRITEs as necessary... |
| |
| /* "do" the syscall ourselves; the kernel never sees it */ |
| if (ARG1 == VKI_ARCH_SET_FS) { |
| tst = VG_(get_ThreadState)(tid); |
| tst->arch.vex.guest_FS_CONST = ARG2; |
| } |
| else if (ARG1 == VKI_ARCH_GET_FS) { |
| PRE_MEM_WRITE("arch_prctl(addr)", ARG2, sizeof(unsigned long)); |
| tst = VG_(get_ThreadState)(tid); |
| *(unsigned long *)ARG2 = tst->arch.vex.guest_FS_CONST; |
| POST_MEM_WRITE(ARG2, sizeof(unsigned long)); |
| } |
| else if (ARG1 == VKI_ARCH_SET_GS) { |
| tst = VG_(get_ThreadState)(tid); |
| tst->arch.vex.guest_GS_CONST = ARG2; |
| } |
| else if (ARG1 == VKI_ARCH_GET_GS) { |
| PRE_MEM_WRITE("arch_prctl(addr)", ARG2, sizeof(unsigned long)); |
| tst = VG_(get_ThreadState)(tid); |
| *(unsigned long *)ARG2 = tst->arch.vex.guest_GS_CONST; |
| POST_MEM_WRITE(ARG2, sizeof(unsigned long)); |
| } |
| else { |
| VG_(core_panic)("Unsupported arch_prctl option"); |
| } |
| |
| /* Note; the Status writeback to guest state that happens after |
| this wrapper returns does not change guest_FS_CONST or guest_GS_CONST; |
| hence that direct assignment to the guest state is safe here. */ |
| SET_STATUS_Success( 0 ); |
| } |
| |
| // Parts of this are amd64-specific, but the *PEEK* cases are generic. |
| // |
| // ARG3 is only used for pointers into the traced process's address |
| // space and for offsets into the traced process's struct |
| // user_regs_struct. It is never a pointer into this process's memory |
| // space, and we should therefore not check anything it points to. |
| PRE(sys_ptrace) |
| { |
| PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", SARG1, SARG2, ARG3, ARG4); |
| PRE_REG_READ4(int, "ptrace", |
| long, request, long, pid, long, addr, long, data); |
| switch (ARG1) { |
| case VKI_PTRACE_PEEKTEXT: |
| case VKI_PTRACE_PEEKDATA: |
| case VKI_PTRACE_PEEKUSR: |
| PRE_MEM_WRITE( "ptrace(peek)", ARG4, |
| sizeof (long)); |
| break; |
| case VKI_PTRACE_GETREGS: |
| PRE_MEM_WRITE( "ptrace(getregs)", ARG4, |
| sizeof (struct vki_user_regs_struct)); |
| break; |
| case VKI_PTRACE_GETFPREGS: |
| PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4, |
| sizeof (struct vki_user_i387_struct)); |
| break; |
| case VKI_PTRACE_SETREGS: |
| PRE_MEM_READ( "ptrace(setregs)", ARG4, |
| sizeof (struct vki_user_regs_struct)); |
| break; |
| case VKI_PTRACE_SETFPREGS: |
| PRE_MEM_READ( "ptrace(setfpregs)", ARG4, |
| sizeof (struct vki_user_i387_struct)); |
| break; |
| case VKI_PTRACE_GETEVENTMSG: |
| PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long)); |
| break; |
| case VKI_PTRACE_GETSIGINFO: |
| PRE_MEM_WRITE( "ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t)); |
| break; |
| case VKI_PTRACE_SETSIGINFO: |
| PRE_MEM_READ( "ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t)); |
| break; |
| case VKI_PTRACE_GETREGSET: |
| ML_(linux_PRE_getregset)(tid, ARG3, ARG4); |
| break; |
| case VKI_PTRACE_SETREGSET: |
| ML_(linux_PRE_setregset)(tid, ARG3, ARG4); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| POST(sys_ptrace) |
| { |
| switch (ARG1) { |
| case VKI_PTRACE_PEEKTEXT: |
| case VKI_PTRACE_PEEKDATA: |
| case VKI_PTRACE_PEEKUSR: |
| POST_MEM_WRITE( ARG4, sizeof (long)); |
| break; |
| case VKI_PTRACE_GETREGS: |
| POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct)); |
| break; |
| case VKI_PTRACE_GETFPREGS: |
| POST_MEM_WRITE( ARG4, sizeof (struct vki_user_i387_struct)); |
| break; |
| case VKI_PTRACE_GETEVENTMSG: |
| POST_MEM_WRITE( ARG4, sizeof(unsigned long)); |
| break; |
| case VKI_PTRACE_GETSIGINFO: |
| /* XXX: This is a simplification. Different parts of the |
| * siginfo_t are valid depending on the type of signal. |
| */ |
| POST_MEM_WRITE( ARG4, sizeof(vki_siginfo_t)); |
| break; |
| case VKI_PTRACE_GETREGSET: |
| ML_(linux_POST_getregset)(tid, ARG3, ARG4); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| PRE(sys_fadvise64) |
| { |
| PRINT("sys_fadvise64 ( %ld, %ld, %lu, %ld )", SARG1, SARG2, ARG3, SARG4); |
| PRE_REG_READ4(long, "fadvise64", |
| int, fd, vki_loff_t, offset, vki_size_t, len, int, advice); |
| } |
| |
| PRE(sys_mmap) |
| { |
| SysRes r; |
| |
| PRINT("sys_mmap ( %#lx, %lu, %ld, %ld, %ld, %ld )", |
| ARG1, ARG2, SARG3, SARG4, SARG5, SARG6 ); |
| PRE_REG_READ6(long, "mmap", |
| unsigned long, start, unsigned long, length, |
| int, prot, int, flags, int, fd, vki_off_t, offset); |
| |
| r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 ); |
| SET_STATUS_from_SysRes(r); |
| } |
| |
| |
| /* --------------------------------------------------------------- |
| PRE/POST wrappers for AMD64/Linux-variant specific syscalls |
| ------------------------------------------------------------ */ |
| |
| PRE(sys_syscall184) |
| { |
| Int err; |
| |
| /* 184 is used by sys_bproc. If we're not on a declared bproc |
| variant, fail in the usual way, since it is otherwise unused. */ |
| |
| if (!KernelVariantiS(KernelVariant_bproc, VG_(clo_kernel_variant))) { |
| PRINT("non-existent syscall! (syscall 184)"); |
| PRE_REG_READ0(long, "ni_syscall(184)"); |
| SET_STATUS_Failure( VKI_ENOSYS ); |
| return; |
| } |
| |
| err = ML_(linux_variant_PRE_sys_bproc)( ARG1, ARG2, ARG3, |
| ARG4, ARG5, ARG6 ); |
| if (err) { |
| SET_STATUS_Failure( err ); |
| return; |
| } |
| /* Let it go through. */ |
| *flags |= SfMayBlock; /* who knows? play safe. */ |
| } |
| |
| POST(sys_syscall184) |
| { |
| ML_(linux_variant_POST_sys_bproc)( ARG1, ARG2, ARG3, |
| ARG4, ARG5, ARG6 ); |
| } |
| |
| #undef PRE |
| #undef POST |
| |
| |
| /* --------------------------------------------------------------------- |
| The AMD64/Linux syscall table |
| ------------------------------------------------------------------ */ |
| |
| /* Add an amd64-linux specific wrapper to a syscall table. */ |
| #define PLAX_(const, name) WRAPPER_ENTRY_X_(amd64_linux, const, name) |
| #define PLAXY(const, name) 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. |
| |
| static SyscallTableEntry syscall_table[] = { |
| GENXY(__NR_read, sys_read), // 0 |
| GENX_(__NR_write, sys_write), // 1 |
| GENXY(__NR_open, sys_open), // 2 |
| GENXY(__NR_close, sys_close), // 3 |
| GENXY(__NR_stat, sys_newstat), // 4 |
| |
| GENXY(__NR_fstat, sys_newfstat), // 5 |
| GENXY(__NR_lstat, sys_newlstat), // 6 |
| GENXY(__NR_poll, sys_poll), // 7 |
| LINX_(__NR_lseek, sys_lseek), // 8 |
| PLAX_(__NR_mmap, sys_mmap), // 9 |
| |
| GENXY(__NR_mprotect, sys_mprotect), // 10 |
| GENXY(__NR_munmap, sys_munmap), // 11 |
| GENX_(__NR_brk, sys_brk), // 12 |
| LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 13 |
| LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 14 |
| |
| PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 15 |
| LINXY(__NR_ioctl, sys_ioctl), // 16 |
| GENXY(__NR_pread64, sys_pread64), // 17 |
| GENX_(__NR_pwrite64, sys_pwrite64), // 18 |
| GENXY(__NR_readv, sys_readv), // 19 |
| |
| GENX_(__NR_writev, sys_writev), // 20 |
| GENX_(__NR_access, sys_access), // 21 |
| LINXY(__NR_pipe, sys_pipe), // 22 |
| GENX_(__NR_select, sys_select), // 23 |
| LINX_(__NR_sched_yield, sys_sched_yield), // 24 |
| |
| GENX_(__NR_mremap, sys_mremap), // 25 |
| GENX_(__NR_msync, sys_msync), // 26 |
| GENXY(__NR_mincore, sys_mincore), // 27 |
| GENX_(__NR_madvise, sys_madvise), // 28 |
| LINX_(__NR_shmget, sys_shmget), // 29 |
| |
| LINXY(__NR_shmat, wrap_sys_shmat), // 30 |
| LINXY(__NR_shmctl, sys_shmctl), // 31 |
| GENXY(__NR_dup, sys_dup), // 32 |
| GENXY(__NR_dup2, sys_dup2), // 33 |
| GENX_(__NR_pause, sys_pause), // 34 |
| |
| GENXY(__NR_nanosleep, sys_nanosleep), // 35 |
| GENXY(__NR_getitimer, sys_getitimer), // 36 |
| GENX_(__NR_alarm, sys_alarm), // 37 |
| GENXY(__NR_setitimer, sys_setitimer), // 38 |
| GENX_(__NR_getpid, sys_getpid), // 39 |
| |
| LINXY(__NR_sendfile, sys_sendfile), // 40 |
| LINXY(__NR_socket, sys_socket), // 41 |
| LINX_(__NR_connect, sys_connect), // 42 |
| LINXY(__NR_accept, sys_accept), // 43 |
| LINX_(__NR_sendto, sys_sendto), // 44 |
| |
| LINXY(__NR_recvfrom, sys_recvfrom), // 45 |
| LINX_(__NR_sendmsg, sys_sendmsg), // 46 |
| LINXY(__NR_recvmsg, sys_recvmsg), // 47 |
| LINX_(__NR_shutdown, sys_shutdown), // 48 |
| LINX_(__NR_bind, sys_bind), // 49 |
| |
| LINX_(__NR_listen, sys_listen), // 50 |
| LINXY(__NR_getsockname, sys_getsockname), // 51 |
| LINXY(__NR_getpeername, sys_getpeername), // 52 |
| LINXY(__NR_socketpair, sys_socketpair), // 53 |
| LINX_(__NR_setsockopt, sys_setsockopt), // 54 |
| |
| LINXY(__NR_getsockopt, sys_getsockopt), // 55 |
| PLAX_(__NR_clone, sys_clone), // 56 |
| GENX_(__NR_fork, sys_fork), // 57 |
| GENX_(__NR_vfork, sys_fork), // 58 treat as fork |
| GENX_(__NR_execve, sys_execve), // 59 |
| |
| GENX_(__NR_exit, sys_exit), // 60 |
| GENXY(__NR_wait4, sys_wait4), // 61 |
| GENX_(__NR_kill, sys_kill), // 62 |
| GENXY(__NR_uname, sys_newuname), // 63 |
| LINX_(__NR_semget, sys_semget), // 64 |
| |
| LINX_(__NR_semop, sys_semop), // 65 |
| LINXY(__NR_semctl, sys_semctl), // 66 |
| LINXY(__NR_shmdt, sys_shmdt), // 67 |
| LINX_(__NR_msgget, sys_msgget), // 68 |
| LINX_(__NR_msgsnd, sys_msgsnd), // 69 |
| |
| LINXY(__NR_msgrcv, sys_msgrcv), // 70 |
| LINXY(__NR_msgctl, sys_msgctl), // 71 |
| LINXY(__NR_fcntl, sys_fcntl), // 72 |
| GENX_(__NR_flock, sys_flock), // 73 |
| GENX_(__NR_fsync, sys_fsync), // 74 |
| |
| GENX_(__NR_fdatasync, sys_fdatasync), // 75 |
| GENX_(__NR_truncate, sys_truncate), // 76 |
| GENX_(__NR_ftruncate, sys_ftruncate), // 77 |
| GENXY(__NR_getdents, sys_getdents), // 78 |
| GENXY(__NR_getcwd, sys_getcwd), // 79 |
| |
| GENX_(__NR_chdir, sys_chdir), // 80 |
| GENX_(__NR_fchdir, sys_fchdir), // 81 |
| GENX_(__NR_rename, sys_rename), // 82 |
| GENX_(__NR_mkdir, sys_mkdir), // 83 |
| GENX_(__NR_rmdir, sys_rmdir), // 84 |
| |
| GENXY(__NR_creat, sys_creat), // 85 |
| GENX_(__NR_link, sys_link), // 86 |
| GENX_(__NR_unlink, sys_unlink), // 87 |
| GENX_(__NR_symlink, sys_symlink), // 88 |
| GENX_(__NR_readlink, sys_readlink), // 89 |
| |
| GENX_(__NR_chmod, sys_chmod), // 90 |
| GENX_(__NR_fchmod, sys_fchmod), // 91 |
| GENX_(__NR_chown, sys_chown), // 92 |
| GENX_(__NR_fchown, sys_fchown), // 93 |
| GENX_(__NR_lchown, sys_lchown), // 94 |
| |
| GENX_(__NR_umask, sys_umask), // 95 |
| GENXY(__NR_gettimeofday, sys_gettimeofday), // 96 |
| GENXY(__NR_getrlimit, sys_getrlimit), // 97 |
| GENXY(__NR_getrusage, sys_getrusage), // 98 |
| LINXY(__NR_sysinfo, sys_sysinfo), // 99 |
| |
| GENXY(__NR_times, sys_times), // 100 |
| PLAXY(__NR_ptrace, sys_ptrace), // 101 |
| GENX_(__NR_getuid, sys_getuid), // 102 |
| LINXY(__NR_syslog, sys_syslog), // 103 |
| GENX_(__NR_getgid, sys_getgid), // 104 |
| |
| GENX_(__NR_setuid, sys_setuid), // 105 |
| GENX_(__NR_setgid, sys_setgid), // 106 |
| GENX_(__NR_geteuid, sys_geteuid), // 107 |
| GENX_(__NR_getegid, sys_getegid), // 108 |
| GENX_(__NR_setpgid, sys_setpgid), // 109 |
| |
| GENX_(__NR_getppid, sys_getppid), // 110 |
| GENX_(__NR_getpgrp, sys_getpgrp), // 111 |
| GENX_(__NR_setsid, sys_setsid), // 112 |
| GENX_(__NR_setreuid, sys_setreuid), // 113 |
| GENX_(__NR_setregid, sys_setregid), // 114 |
| |
| GENXY(__NR_getgroups, sys_getgroups), // 115 |
| GENX_(__NR_setgroups, sys_setgroups), // 116 |
| LINX_(__NR_setresuid, sys_setresuid), // 117 |
| LINXY(__NR_getresuid, sys_getresuid), // 118 |
| LINX_(__NR_setresgid, sys_setresgid), // 119 |
| |
| LINXY(__NR_getresgid, sys_getresgid), // 120 |
| GENX_(__NR_getpgid, sys_getpgid), // 121 |
| LINX_(__NR_setfsuid, sys_setfsuid), // 122 |
| LINX_(__NR_setfsgid, sys_setfsgid), // 123 |
| GENX_(__NR_getsid, sys_getsid), // 124 |
| |
| LINXY(__NR_capget, sys_capget), // 125 |
| LINX_(__NR_capset, sys_capset), // 126 |
| LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 127 |
| LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait),// 128 |
| LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),// 129 |
| |
| LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 130 |
| GENXY(__NR_sigaltstack, sys_sigaltstack), // 131 |
| LINX_(__NR_utime, sys_utime), // 132 |
| GENX_(__NR_mknod, sys_mknod), // 133 |
| // (__NR_uselib, sys_uselib), // 134 |
| |
| LINX_(__NR_personality, sys_personality), // 135 |
| // (__NR_ustat, sys_ustat), // 136 |
| GENXY(__NR_statfs, sys_statfs), // 137 |
| GENXY(__NR_fstatfs, sys_fstatfs), // 138 |
| // (__NR_sysfs, sys_sysfs), // 139 |
| |
| GENX_(__NR_getpriority, sys_getpriority), // 140 |
| GENX_(__NR_setpriority, sys_setpriority), // 141 |
| LINXY(__NR_sched_setparam, sys_sched_setparam), // 142 |
| LINXY(__NR_sched_getparam, sys_sched_getparam), // 143 |
| LINX_(__NR_sched_setscheduler, sys_sched_setscheduler), // 144 |
| |
| LINX_(__NR_sched_getscheduler, sys_sched_getscheduler), // 145 |
| LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max), // 146 |
| LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min), // 147 |
| LINXY(__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 148 |
| GENX_(__NR_mlock, sys_mlock), // 149 |
| |
| GENX_(__NR_munlock, sys_munlock), // 150 |
| GENX_(__NR_mlockall, sys_mlockall), // 151 |
| LINX_(__NR_munlockall, sys_munlockall), // 152 |
| LINX_(__NR_vhangup, sys_vhangup), // 153 |
| // (__NR_modify_ldt, sys_modify_ldt), // 154 |
| |
| LINX_(__NR_pivot_root, sys_pivot_root), // 155 |
| LINXY(__NR__sysctl, sys_sysctl), // 156 |
| LINXY(__NR_prctl, sys_prctl), // 157 |
| PLAX_(__NR_arch_prctl, sys_arch_prctl), // 158 |
| LINXY(__NR_adjtimex, sys_adjtimex), // 159 |
| |
| GENX_(__NR_setrlimit, sys_setrlimit), // 160 |
| GENX_(__NR_chroot, sys_chroot), // 161 |
| GENX_(__NR_sync, sys_sync), // 162 |
| // (__NR_acct, sys_acct), // 163 |
| GENX_(__NR_settimeofday, sys_settimeofday), // 164 |
| |
| LINX_(__NR_mount, sys_mount), // 165 |
| LINX_(__NR_umount2, sys_umount), // 166 |
| // (__NR_swapon, sys_swapon), // 167 |
| // (__NR_swapoff, sys_swapoff), // 168 |
| // (__NR_reboot, sys_reboot), // 169 |
| |
| GENX_(__NR_sethostname, sys_sethostname), // 170 |
| // (__NR_setdomainname, sys_setdomainname), // 171 |
| GENX_(__NR_iopl, sys_iopl), // 172 |
| LINX_(__NR_ioperm, sys_ioperm), // 173 |
| GENX_(__NR_create_module, sys_ni_syscall), // 174 |
| |
| LINX_(__NR_init_module, sys_init_module), // 175 |
| LINX_(__NR_delete_module, sys_delete_module), // 176 |
| // (__NR_get_kernel_syms, sys_ni_syscall), // 177 |
| // (__NR_query_module, sys_ni_syscall), // 178 |
| LINX_(__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 |
| PLAXY(184, sys_syscall184), // 184 // sys_bproc? |
| |
| // (__NR_security, sys_ni_syscall), // 185 |
| LINX_(__NR_gettid, sys_gettid), // 186 |
| LINX_(__NR_readahead, sys_readahead), // 187 |
| LINX_(__NR_setxattr, sys_setxattr), // 188 |
| LINX_(__NR_lsetxattr, sys_lsetxattr), // 189 |
| |
| LINX_(__NR_fsetxattr, sys_fsetxattr), // 190 |
| LINXY(__NR_getxattr, sys_getxattr), // 191 |
| LINXY(__NR_lgetxattr, sys_lgetxattr), // 192 |
| LINXY(__NR_fgetxattr, sys_fgetxattr), // 193 |
| LINXY(__NR_listxattr, sys_listxattr), // 194 |
| |
| LINXY(__NR_llistxattr, sys_llistxattr), // 195 |
| LINXY(__NR_flistxattr, sys_flistxattr), // 196 |
| LINX_(__NR_removexattr, sys_removexattr), // 197 |
| LINX_(__NR_lremovexattr, sys_lremovexattr), // 198 |
| LINX_(__NR_fremovexattr, sys_fremovexattr), // 199 |
| |
| LINXY(__NR_tkill, sys_tkill), // 200 |
| GENXY(__NR_time, sys_time), /*was sys_time64*/ // 201 |
| LINXY(__NR_futex, sys_futex), // 202 |
| LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 203 |
| LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 204 |
| |
| // (__NR_set_thread_area, sys_ni_syscall), // 205 |
| LINXY(__NR_io_setup, sys_io_setup), // 206 |
| LINX_(__NR_io_destroy, sys_io_destroy), // 207 |
| LINXY(__NR_io_getevents, sys_io_getevents), // 208 |
| LINX_(__NR_io_submit, sys_io_submit), // 209 |
| |
| LINXY(__NR_io_cancel, sys_io_cancel), // 210 |
| // (__NR_get_thread_area, sys_ni_syscall), // 211 |
| LINXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 212 |
| LINXY(__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 |
| GENXY(__NR_getdents64, sys_getdents64), // 217 |
| LINX_(__NR_set_tid_address, sys_set_tid_address),// 218 |
| // (__NR_restart_syscall, sys_restart_syscall),// 219 |
| |
| LINX_(__NR_semtimedop, sys_semtimedop), // 220 |
| PLAX_(__NR_fadvise64, sys_fadvise64), // 221 |
| LINXY(__NR_timer_create, sys_timer_create), // 222 |
| LINXY(__NR_timer_settime, sys_timer_settime), // 223 |
| LINXY(__NR_timer_gettime, sys_timer_gettime), // 224 |
| |
| LINX_(__NR_timer_getoverrun, sys_timer_getoverrun), // 225 |
| LINX_(__NR_timer_delete, sys_timer_delete), // 226 |
| LINX_(__NR_clock_settime, sys_clock_settime), // 227 |
| LINXY(__NR_clock_gettime, sys_clock_gettime), // 228 |
| LINXY(__NR_clock_getres, sys_clock_getres), // 229 |
| |
| LINXY(__NR_clock_nanosleep, sys_clock_nanosleep),// 230 |
| LINX_(__NR_exit_group, sys_exit_group), // 231 |
| LINXY(__NR_epoll_wait, sys_epoll_wait), // 232 |
| LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 233 |
| LINXY(__NR_tgkill, sys_tgkill), // 234 |
| |
| GENX_(__NR_utimes, sys_utimes), // 235 |
| // (__NR_vserver, sys_ni_syscall), // 236 |
| LINX_(__NR_mbind, sys_mbind), // 237 |
| LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 238 |
| LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 239 |
| |
| LINXY(__NR_mq_open, sys_mq_open), // 240 |
| LINX_(__NR_mq_unlink, sys_mq_unlink), // 241 |
| LINX_(__NR_mq_timedsend, sys_mq_timedsend), // 242 |
| LINXY(__NR_mq_timedreceive, sys_mq_timedreceive),// 243 |
| LINX_(__NR_mq_notify, sys_mq_notify), // 244 |
| |
| LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // 245 |
| // (__NR_kexec_load, sys_ni_syscall), // 246 |
| LINXY(__NR_waitid, sys_waitid), // 247 |
| LINX_(__NR_add_key, sys_add_key), // 248 |
| LINX_(__NR_request_key, sys_request_key), // 249 |
| |
| LINXY(__NR_keyctl, sys_keyctl), // 250 |
| LINX_(__NR_ioprio_set, sys_ioprio_set), // 251 |
| LINX_(__NR_ioprio_get, sys_ioprio_get), // 252 |
| LINX_(__NR_inotify_init, sys_inotify_init), // 253 |
| LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 254 |
| |
| LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 255 |
| // LINX_(__NR_migrate_pages, sys_migrate_pages), // 256 |
| LINXY(__NR_openat, sys_openat), // 257 |
| LINX_(__NR_mkdirat, sys_mkdirat), // 258 |
| LINX_(__NR_mknodat, sys_mknodat), // 259 |
| |
| LINX_(__NR_fchownat, sys_fchownat), // 260 |
| LINX_(__NR_futimesat, sys_futimesat), // 261 |
| LINXY(__NR_newfstatat, sys_newfstatat), // 262 |
| LINX_(__NR_unlinkat, sys_unlinkat), // 263 |
| LINX_(__NR_renameat, sys_renameat), // 264 |
| |
| LINX_(__NR_linkat, sys_linkat), // 265 |
| LINX_(__NR_symlinkat, sys_symlinkat), // 266 |
| LINX_(__NR_readlinkat, sys_readlinkat), // 267 |
| LINX_(__NR_fchmodat, sys_fchmodat), // 268 |
| LINX_(__NR_faccessat, sys_faccessat), // 269 |
| |
| LINX_(__NR_pselect6, sys_pselect6), // 270 |
| LINXY(__NR_ppoll, sys_ppoll), // 271 |
| LINX_(__NR_unshare, sys_unshare), // 272 |
| LINX_(__NR_set_robust_list, sys_set_robust_list), // 273 |
| LINXY(__NR_get_robust_list, sys_get_robust_list), // 274 |
| |
| LINX_(__NR_splice, sys_splice), // 275 |
| LINX_(__NR_tee, sys_tee), // 276 |
| LINX_(__NR_sync_file_range, sys_sync_file_range), // 277 |
| LINXY(__NR_vmsplice, sys_vmsplice), // 278 |
| LINXY(__NR_move_pages, sys_move_pages), // 279 |
| |
| LINX_(__NR_utimensat, sys_utimensat), // 280 |
| LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 281 |
| LINXY(__NR_signalfd, sys_signalfd), // 282 |
| LINXY(__NR_timerfd_create, sys_timerfd_create), // 283 |
| LINXY(__NR_eventfd, sys_eventfd), // 284 |
| |
| LINX_(__NR_fallocate, sys_fallocate), // 285 |
| LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 286 |
| LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 287 |
| LINXY(__NR_accept4, sys_accept4), // 288 |
| LINXY(__NR_signalfd4, sys_signalfd4), // 289 |
| |
| LINXY(__NR_eventfd2, sys_eventfd2), // 290 |
| LINXY(__NR_epoll_create1, sys_epoll_create1), // 291 |
| LINXY(__NR_dup3, sys_dup3), // 292 |
| LINXY(__NR_pipe2, sys_pipe2), // 293 |
| LINXY(__NR_inotify_init1, sys_inotify_init1), // 294 |
| |
| LINXY(__NR_preadv, sys_preadv), // 295 |
| LINX_(__NR_pwritev, sys_pwritev), // 296 |
| LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 297 |
| LINXY(__NR_perf_event_open, sys_perf_event_open), // 298 |
| LINXY(__NR_recvmmsg, sys_recvmmsg), // 299 |
| |
| LINXY(__NR_fanotify_init, sys_fanotify_init), // 300 |
| LINX_(__NR_fanotify_mark, sys_fanotify_mark), // 301 |
| LINXY(__NR_prlimit64, sys_prlimit64), // 302 |
| LINXY(__NR_name_to_handle_at, sys_name_to_handle_at),// 303 |
| LINXY(__NR_open_by_handle_at, sys_open_by_handle_at),// 304 |
| |
| LINXY(__NR_clock_adjtime, sys_clock_adjtime), // 305 |
| LINX_(__NR_syncfs, sys_syncfs), // 306 |
| LINXY(__NR_sendmmsg, sys_sendmmsg), // 307 |
| // LINX_(__NR_setns, sys_ni_syscall), // 308 |
| LINXY(__NR_getcpu, sys_getcpu), // 309 |
| |
| LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 310 |
| LINX_(__NR_process_vm_writev, sys_process_vm_writev),// 311 |
| LINX_(__NR_kcmp, sys_kcmp), // 312 |
| // LIN__(__NR_finit_module, sys_ni_syscall), // 313 |
| // LIN__(__NR_sched_setattr, sys_ni_syscall), // 314 |
| |
| // LIN__(__NR_sched_getattr, sys_ni_syscall), // 315 |
| // LIN__(__NR_renameat2, sys_ni_syscall), // 316 |
| // LIN__(__NR_seccomp, sys_ni_syscall), // 317 |
| LINXY(__NR_getrandom, sys_getrandom), // 318 |
| LINXY(__NR_memfd_create, sys_memfd_create) // 319 |
| |
| // LIN__(__NR_kexec_file_load, sys_ni_syscall), // 320 |
| // LIN__(__NR_bpf, sys_ni_syscall) // 321 |
| }; |
| |
| SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno ) |
| { |
| const UInt syscall_table_size |
| = sizeof(syscall_table) / sizeof(syscall_table[0]); |
| |
| /* Is it in the contiguous initial section of the table? */ |
| if (sysno < syscall_table_size) { |
| SyscallTableEntry* sys = &syscall_table[sysno]; |
| if (sys->before == NULL) |
| return NULL; /* no entry */ |
| else |
| return sys; |
| } |
| |
| /* Can't find a wrapper */ |
| return NULL; |
| } |
| |
| #endif // defined(VGP_amd64_linux) |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |
