| |
| /*--------------------------------------------------------------------*/ |
| /*--- Platform-specific syscalls stuff. syswrap-mips64-linux.c ----*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2010-2013 RT-RK |
| mips-valgrind@rt-rk.com |
| |
| 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_mips64_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_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_options.h" |
| #include "pub_core_scheduler.h" |
| #include "pub_core_sigframe.h" /* For VG_(sigframe_destroy)() */ |
| #include "pub_core_signals.h" |
| #include "pub_core_syscall.h" |
| #include "pub_core_syswrap.h" |
| #include "pub_core_tooliface.h" |
| #include "pub_core_transtab.h" /* VG_(discard_translations) */ |
| #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-main.h" |
| |
| #include "pub_core_debuginfo.h" /* VG_(di_notify_*) */ |
| #include "pub_core_xarray.h" |
| #include "pub_core_clientstate.h" /* VG_(brk_base), VG_(brk_limit) */ |
| #include "pub_core_errormgr.h" |
| #include "pub_core_gdbserver.h" /* VG_(gdbserver) */ |
| #include "pub_core_libcfile.h" |
| #include "pub_core_machine.h" /* VG_(get_SP) */ |
| #include "pub_core_mallocfree.h" |
| #include "pub_core_stacktrace.h" /* For VG_(get_and_pp_StackTrace)() */ |
| #include "pub_core_ume.h" |
| |
| #include "config.h" |
| |
| #include <errno.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, /* $4 - $a0 */ |
| Addr retaddr, /* $5 - $a1 */ |
| void (*f_desc) (Word), /* $6 - $a2 */ |
| Word arg1 ); /* $7 - $a3 */ |
| asm ( |
| ".text\n" |
| ".globl vgModuleLocal_call_on_new_stack_0_1\n" |
| "vgModuleLocal_call_on_new_stack_0_1:\n" |
| " move $29, $4\n" /* set stack */ |
| " move $4, $7\n" /* arg1 to $4 */ |
| " move $25, $6\n" |
| " move $31, $5\n" /* retaddr to $ra */ |
| " jr $25\n" /* jump to f */ |
| " break 0x7\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: |
| |
| word (fn)(void*) in a0 = 4 |
| void* child_stack in a1 = 5 |
| word flags in a2 = 6 |
| void* arg in a3 = 7 |
| pid_t* parent_tid in a4 = 8 |
| void* tls in a5 = 9 |
| pid_t* child_tid in a6 = 10 |
| |
| System call requires: |
| |
| int $__NR_clone in v0 |
| int flags in a0 = 4 |
| void* child_stack in a1 = 5 |
| pid_t* parent_tid in a2 = 6 |
| void* tls_ptr in a3 = 7 |
| pid_t* child_tid in a4 = 8 */ |
| |
| #define __NR_CLONE __NR_clone |
| #define __NR_EXIT __NR_exit |
| |
| ULong do_syscall_clone_mips64_linux ( Word (*fn) (void *), /* a0 - 4 */ |
| void* stack, /* a1 - 5 */ |
| Int flags, /* a2 - 6 */ |
| void* arg, /* a3 - 7 */ |
| Int* parent_tid, /* a4 - 8 */ |
| void* /* Int tls */, /* a5 - 9 */ |
| Int* child_tid ); /* a6 - 10 */ |
| |
| asm( |
| ".text\n" |
| ".set noreorder\n" |
| ".set nomacro\n" |
| ".globl do_syscall_clone_mips64_linux\n" |
| "do_syscall_clone_mips64_linux:\n" |
| " daddiu $29, $29, -32\n" |
| " sd $31, 0($29)\n" |
| " sd $30, 8($29)\n" |
| " sd $28, 16($29)\n" |
| |
| " daddiu $5, $5, -32\n" |
| " sd $4, 0($5)\n" /* fn */ |
| " sd $7, 8($5)\n" /* arg */ |
| " sd $6, 16($5)\n" /* flags */ |
| |
| /* 1. arg for syscalls */ |
| " move $4, $6\n" /* flags */ |
| " move $6, $8\n" /* parent */ |
| " move $7, $a5\n" /* tls */ |
| " move $8, $a6\n" /* child */ |
| |
| /* 2. do a syscall to clone */ |
| " li $2, 5055\n" /* syscall num for clone */ |
| " syscall\n" |
| |
| /* 3. See if we are a child, call fn and after that exit */ |
| " bnez $7, p_or_error\n" |
| " nop\n" |
| |
| " bnez $2, p_or_error\n" |
| " nop\n" |
| |
| " ld $25,0($29)\n" |
| " jalr $25\n" |
| " ld $4,8($29)\n" |
| |
| " move $4, $2\n\t" /* retval from fn is in $v0 */ |
| " li $2, 5058\n\t" /* NR_exit */ |
| " syscall\n\t" |
| " nop\n\t" |
| /* 4. If we are parent or error, just return to caller */ |
| " p_or_error:\n" |
| " ld $31, 0($29)\n" |
| " ld $30, 8($29)\n" |
| " ld $28, 16($29)\n" |
| " jr $31\n" |
| " daddi $29,$29, 32\n" |
| ".previous\n" |
| ); |
| |
| #undef __NR_CLONE |
| #undef __NR_EXIT |
| |
| /* forward declarations */ |
| static void setup_child ( ThreadArchState *, ThreadArchState *); |
| static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr); |
| |
| /* When a client clones, we need to keep track of the new thread. This means: |
| 1. allocate a ThreadId+ThreadState+stack for the 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 IP, and a separate stack for SP. */ |
| static SysRes do_clone ( ThreadId ptid, |
| UInt flags, Addr sp, |
| Int* parent_tidptr, |
| Int* child_tidptr, |
| Addr child_tls ) |
| { |
| const Bool debug = False; |
| ThreadId ctid = VG_ (alloc_ThreadState) (); |
| ThreadState * ptst = VG_ (get_ThreadState) (ptid); |
| ThreadState * ctst = VG_ (get_ThreadState) (ctid); |
| UInt ret = 0; |
| UWord * stack; |
| SysRes res; |
| 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; |
| } |
| setup_child(&ctst->arch, &ptst->arch); |
| |
| /* on MIPS we need to set V0 and A3 to zero */ |
| ctst->arch.vex.guest_r2 = 0; |
| ctst->arch.vex.guest_r7 = 0; |
| if (sp != 0) |
| ctst->arch.vex.guest_r29 = sp; |
| |
| ctst->os_state.parent = ptid; |
| ctst->sig_mask = ptst->sig_mask; |
| ctst->tmp_sig_mask = ptst->sig_mask; |
| |
| ctst->os_state.threadgroup = ptst->os_state.threadgroup; |
| |
| ML_(guess_and_register_stack) (sp, ctst); |
| |
| 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", child_tls); |
| res = sys_set_tls(ctid, child_tls); |
| if (sr_isError(res)) |
| goto out; |
| ctst->arch.vex.guest_r27 = child_tls; |
| } |
| |
| flags &= ~VKI_CLONE_SETTLS; |
| VG_ (sigprocmask) (VKI_SIG_SETMASK, &blockall, &savedmask); |
| /* Create the new thread */ |
| ret = do_syscall_clone_mips64_linux(ML_(start_thread_NORETURN), |
| stack, flags, &VG_(threads)[ctid], |
| parent_tidptr, NULL /*child_tls*/, |
| child_tidptr); |
| if (debug) |
| VG_(printf)("ret: 0x%x\n", ret); |
| |
| res = VG_(mk_SysRes_mips64_linux)( /* val */ ret, 0, /* errflag */ 0); |
| |
| VG_(sigprocmask)(VKI_SIG_SETMASK, &savedmask, NULL); |
| |
| out: |
| if (sr_isError (res)) { |
| VG_ (cleanup_thread) (&ctst->arch); |
| ctst->status = VgTs_Empty; |
| VG_TRACK (pre_thread_ll_exit, ctid); |
| } |
| ptst->arch.vex.guest_r2 = 0; |
| |
| 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; |
| } |
| |
| SysRes sys_set_tls ( ThreadId tid, Addr tlsptr ) |
| { |
| VG_(threads)[tid].arch.vex.guest_ULR = tlsptr; |
| return VG_(mk_SysRes_Success)( 0 ); |
| } |
| |
| /* --------------------------------------------------------------------- |
| PRE/POST wrappers for mips/Linux-specific syscalls |
| ------------------------------------------------------------------ */ |
| |
| #define PRE(name) DEFN_PRE_TEMPLATE(mips_linux, name) |
| #define POST(name) DEFN_POST_TEMPLATE(mips_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 (mips_linux, sys_set_thread_area); |
| DECL_TEMPLATE (mips_linux, sys_clone); |
| DECL_TEMPLATE (mips_linux, sys_tee); |
| DECL_TEMPLATE (mips_linux, sys_splice); |
| DECL_TEMPLATE (mips_linux, sys_vmsplice); |
| DECL_TEMPLATE (mips_linux, sys_ustat); |
| DECL_TEMPLATE (mips_linux, sys_sysfs); |
| DECL_TEMPLATE (mips_linux, sys_swapon); |
| DECL_TEMPLATE (mips_linux, sys_swapoff); |
| DECL_TEMPLATE (mips_linux, sys_setdomainname); |
| DECL_TEMPLATE (mips_linux, sys_sethostname); |
| DECL_TEMPLATE (mips_linux, sys_reboot); |
| DECL_TEMPLATE (mips_linux, sys_cacheflush); |
| DECL_TEMPLATE (mips_linux, sys_sched_rr_get_interval); |
| DECL_TEMPLATE (mips_linux, sys_unshare); |
| DECL_TEMPLATE (mips_linux, sys_arch_prctl); |
| DECL_TEMPLATE (mips_linux, sys_ptrace); |
| DECL_TEMPLATE (mips_linux, sys_mmap); |
| DECL_TEMPLATE (mips_linux, sys_rt_sigreturn); |
| DECL_TEMPLATE (mips_linux, sys_pipe); |
| |
| PRE(sys_tee) |
| { |
| PRINT("sys_tee ( %ld, %ld, %ld, %ld )", ARG1, ARG2, ARG3, ARG4); |
| PRE_REG_READ4(long, "sys_tee", int, fdin, int, fdout, vki_size_t, len, |
| int, flags); |
| } |
| |
| PRE(sys_splice) |
| { |
| PRINT("sys_splice ( %ld, %ld, %ld, %ld, %ld, %ld )", ARG1, ARG2, ARG3, |
| ARG4, ARG5, ARG6); |
| |
| PRE_REG_READ6(long, "sys_splice", int, fdin, vki_loff_t, sizein, int, |
| fdout, vki_loff_t, sizeout, vki_size_t, len, int, flags); |
| } |
| |
| PRE(sys_vmsplice) |
| { |
| PRINT("sys_vmsplice ( %ld, %ld, %ld, %ld )", ARG1, ARG2, ARG3, ARG4); |
| PRE_REG_READ4(long, "sys_vmsplice", int, fdin, struct vki_iovec *, v, |
| vki_size_t, len, int, flags); |
| } |
| |
| PRE(sys_unshare) |
| { |
| PRINT("sys_unshare ( %ld )", ARG1); |
| PRE_REG_READ1(long, "sys_unshare", int, flags); |
| } |
| |
| PRE(sys_sched_rr_get_interval) |
| { |
| PRINT("sys_sched_rr_get_interval ( %ld, %#lx)", ARG1, ARG2); |
| PRE_REG_READ2(long, "sched_rr_get_interval", int, flags, |
| struct timespec *, timer); |
| *flags |= SfMayBlock; |
| } |
| |
| PRE(sys_ustat) |
| { |
| PRINT("sys_ustat ( %ld, %#lx)", ARG1, ARG2); |
| PRE_REG_READ2(long, "ustat", int, flags, const void *, path); |
| } |
| |
| PRE(sys_swapon) |
| { |
| PRINT("sys_swapon ( %#lx, %ld )", ARG1, ARG2); |
| PRE_REG_READ2(long, "swapon", const void *, path, int, flags); |
| } |
| |
| PRE(sys_swapoff) |
| { |
| PRINT("sys_swapoff ( %#lx )", ARG1); |
| PRE_REG_READ1(long, "swapoff", const void *, path); |
| } |
| |
| PRE(sys_sysfs) |
| { |
| PRINT("sys_sysfs ( %ld, %ld, %#lx )", ARG1, ARG2, ARG3); |
| PRE_REG_READ3(long, "sysfs", int, flags, int, desc, const void *, path); |
| } |
| |
| /* Very much MIPS specific */ |
| PRE(sys_cacheflush) |
| { |
| PRINT("cacheflush (%lx, %lx, %lx)", ARG1, ARG2, ARG3); |
| PRE_REG_READ3(long, "cacheflush", unsigned long, addr, |
| int, nbytes, int, cache); |
| VG_ (discard_translations) ((Addr)ARG1, (ULong) ARG2, |
| "PRE(sys_cacheflush)"); |
| SET_STATUS_Success(0); |
| } |
| |
| PRE(sys_reboot) |
| { |
| PRINT("sys_reboot ( %ld )", ARG1); |
| PRE_REG_READ1(int, "reboot", int, flags); |
| *flags |= SfMayBlock; |
| } |
| |
| PRE(sys_setdomainname) |
| { |
| PRINT ("sys_setdomainname ( %#lx, %ld )", ARG1, ARG2); |
| PRE_REG_READ2 (long, "setdomainname", const void *, name, int, len); |
| } |
| |
| PRE(sys_sethostname) |
| { |
| PRINT ("sys_sethostname ( %ld, %ld )", ARG1, ARG2); |
| PRE_REG_READ2 (long, "sethostname", const void *, name, int, len); |
| } |
| |
| PRE(sys_ptrace) |
| { |
| PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", ARG1, ARG2, 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_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; |
| 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_GETEVENTMSG: |
| POST_MEM_WRITE (ARG4, sizeof(unsigned long)); |
| break; |
| case VKI_PTRACE_GETSIGINFO: |
| 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_mmap) |
| { |
| SysRes r; |
| PRINT("sys_mmap ( %#lx, %llu, %lu, %lu, %lu, %ld )", ARG1, (ULong)ARG2, |
| ARG3, ARG4, ARG5, ARG6); |
| PRE_REG_READ6(long, "mmap", unsigned long, start, vki_size_t, length, |
| int, prot, int, flags, int, fd, unsigned long, offset); |
| r = ML_(generic_PRE_sys_mmap)(tid, ARG1, ARG2, ARG3, ARG4, ARG5, |
| (Off64T) ARG6); |
| SET_STATUS_from_SysRes(r); |
| } |
| |
| PRE(sys_clone) |
| { |
| Bool badarg = False; |
| UInt 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)) { |
| badarg = True; |
| } |
| } |
| 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)", ARG5, sizeof (Int)); |
| if (!VG_(am_is_valid_for_client)(ARG5, sizeof (Int), VKI_PROT_WRITE)) |
| badarg = True; |
| } |
| if (badarg) { |
| 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 SP */ |
| (Int *)ARG3, /* parent_tidptr */ |
| (Int *)ARG5, /* child_tidptr */ |
| (Addr)ARG4)); /* child_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 *)ARG5)); /* 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(ARG5, sizeof(Int)); |
| /* Thread creation was successful; let the child have the chance to run */ |
| *flags |= SfYieldAfter; |
| } |
| } |
| |
| PRE(sys_rt_sigreturn) |
| { |
| /* See comments on PRE(sys_rt_sigreturn) in syswrap-s390x-linux.c for |
| an explanation of what follows. */ |
| 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)); |
| |
| tst = VG_(get_ThreadState)(tid); |
| |
| /* This is only so that the IA is (might be) useful to report if |
| something goes wrong in the sigreturn */ |
| ML_(fixup_guest_state_to_restart_syscall)(&tst->arch); |
| |
| /* Restore register state from frame and remove it */ |
| 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_set_thread_area) |
| { |
| PRINT("set_thread_area (%lx)", ARG1); |
| PRE_REG_READ1(long, "set_thread_area", unsigned long, addr); |
| SET_STATUS_from_SysRes(sys_set_tls(tid, ARG1)); |
| } |
| |
| PRE(sys_pipe) |
| { |
| PRINT("sys_pipe ( %#lx )", ARG1); |
| PRE_REG_READ1(int, "pipe", int *, filedes); |
| PRE_MEM_WRITE( "pipe(filedes)", ARG1, 2*sizeof(int) ); |
| } |
| |
| POST(sys_pipe) |
| { |
| Int p0, p1; |
| vg_assert(SUCCESS); |
| p0 = RES; |
| p1 = sr_ResEx(status->sres); |
| |
| if (!ML_(fd_allowed)(p0, "pipe", tid, True) || |
| !ML_(fd_allowed)(p1, "pipe", tid, True)) { |
| VG_(close)(p0); |
| VG_(close)(p1); |
| SET_STATUS_Failure( VKI_EMFILE ); |
| } else { |
| if (VG_(clo_track_fds)) { |
| ML_(record_fd_open_nameless)(tid, p0); |
| ML_(record_fd_open_nameless)(tid, p1); |
| } |
| } |
| } |
| |
| #undef PRE |
| #undef POST |
| |
| /* --------------------------------------------------------------------- |
| The mips64/Linux syscall table |
| ------------------------------------------------------------------ */ |
| |
| /* Add an mips64-linux specific wrapper to a syscall table. */ |
| #define PLAX_(sysno, name) WRAPPER_ENTRY_X_(mips_linux, sysno, name) |
| #define PLAXY(sysno, name) WRAPPER_ENTRY_XY(mips_linux, sysno, name) |
| |
| static SyscallTableEntry syscall_main_table[] = { |
| GENXY (__NR_read, sys_read), /* 5000 */ |
| GENX_ (__NR_write, sys_write), |
| GENXY (__NR_open, sys_open), |
| GENXY (__NR_close, sys_close), |
| GENXY (__NR_stat, sys_newstat), |
| GENXY (__NR_fstat, sys_newfstat), |
| GENXY (__NR_lstat, sys_newlstat), |
| GENXY (__NR_poll, sys_poll), |
| LINX_ (__NR_lseek, sys_lseek), |
| PLAX_ (__NR_mmap, sys_mmap), |
| GENXY (__NR_mprotect, sys_mprotect), |
| GENXY (__NR_munmap, sys_munmap), |
| GENX_ (__NR_brk, sys_brk), |
| LINXY (__NR_rt_sigaction, sys_rt_sigaction), |
| LINXY (__NR_rt_sigprocmask, sys_rt_sigprocmask), |
| LINXY (__NR_ioctl, sys_ioctl), |
| LINXY (__NR_eventfd2, sys_eventfd2), |
| LINXY (__NR_signalfd4, sys_signalfd4), |
| GENXY (__NR_pread64, sys_pread64), |
| GENX_ (__NR_pwrite64, sys_pwrite64), |
| GENXY (__NR_readv, sys_readv), |
| GENX_ (__NR_writev, sys_writev), |
| GENX_ (__NR_access, sys_access), |
| PLAXY (__NR_pipe, sys_pipe), |
| LINXY (__NR_pipe2, sys_pipe2), |
| GENX_ (__NR__newselect,sys_select), |
| LINX_ (__NR_sched_yield, sys_sched_yield), |
| GENX_ (__NR_mremap, sys_mremap), |
| GENX_ (__NR_msync, sys_msync), |
| GENXY (__NR_mincore, sys_mincore), |
| GENX_ (__NR_madvise, sys_madvise), |
| LINX_ (__NR_shmget, sys_shmget), |
| LINXY (__NR_shmat, wrap_sys_shmat), |
| LINXY (__NR_shmctl, sys_shmctl), |
| GENXY (__NR_dup, sys_dup), |
| GENXY (__NR_dup2, sys_dup2), |
| LINXY (__NR_dup3, sys_dup3), |
| GENX_ (__NR_pause, sys_pause), |
| GENXY (__NR_nanosleep, sys_nanosleep), |
| GENXY (__NR_getitimer, sys_getitimer), |
| GENXY (__NR_setitimer, sys_setitimer), |
| GENX_ (__NR_alarm, sys_alarm), |
| GENX_ (__NR_getpid, sys_getpid), |
| /* LINX_(__NR_fallocate,sys_fallocate), */ |
| LINXY (__NR_sendfile, sys_sendfile), |
| LINXY (__NR_socket, sys_socket), |
| LINX_ (__NR_connect, sys_connect), |
| LINXY (__NR_accept, sys_accept), |
| LINXY (__NR_accept4, sys_accept4), |
| LINX_ (__NR_sendto, sys_sendto), |
| LINXY (__NR_recvfrom, sys_recvfrom), |
| LINX_ (__NR_sendmsg, sys_sendmsg), |
| LINXY (__NR_recvmsg, sys_recvmsg), |
| LINX_ (__NR_shutdown, sys_shutdown), |
| LINX_ (__NR_bind, sys_bind), |
| LINX_ (__NR_listen, sys_listen), |
| LINXY (__NR_getsockname, sys_getsockname), |
| LINXY (__NR_getpeername, sys_getpeername), |
| LINXY (__NR_socketpair, sys_socketpair), |
| LINX_ (__NR_setsockopt, sys_setsockopt), |
| LINXY (__NR_getsockopt, sys_getsockopt), |
| PLAX_ (__NR_clone, sys_clone), |
| GENX_ (__NR_fork, sys_fork), |
| GENX_ (__NR_execve, sys_execve), |
| GENX_ (__NR_exit, sys_exit), |
| GENXY (__NR_wait4, sys_wait4), |
| GENX_ (__NR_kill, sys_kill), |
| GENXY (__NR_uname, sys_newuname), |
| LINX_ (__NR_semget, sys_semget), |
| LINX_ (__NR_semop, sys_semop), |
| LINXY (__NR_semctl, sys_semctl), |
| LINXY (__NR_shmdt, sys_shmdt), |
| LINX_ (__NR_msgget, sys_msgget), |
| LINX_ (__NR_msgsnd, sys_msgsnd), |
| LINXY (__NR_msgrcv, sys_msgrcv), |
| LINXY (__NR_msgctl, sys_msgctl), |
| LINXY (__NR_fcntl, sys_fcntl), |
| GENX_ (__NR_flock, sys_flock), |
| GENX_ (__NR_fsync, sys_fsync), |
| GENX_ (__NR_fdatasync, sys_fdatasync), |
| GENX_ (__NR_truncate, sys_truncate), |
| GENX_ (__NR_ftruncate, sys_ftruncate), |
| GENXY (__NR_getdents, sys_getdents), |
| GENXY (__NR_getcwd, sys_getcwd), |
| GENX_ (__NR_chdir, sys_chdir), |
| GENX_ (__NR_fchdir, sys_fchdir), |
| GENX_ (__NR_rename, sys_rename), |
| GENX_ (__NR_mkdir, sys_mkdir), |
| GENX_ (__NR_rmdir, sys_rmdir), |
| GENXY (__NR_creat, sys_creat), |
| GENX_ (__NR_link, sys_link), |
| GENX_ (__NR_unlink, sys_unlink), |
| GENX_ (__NR_symlink, sys_symlink), |
| GENX_ (__NR_readlink, sys_readlink), |
| GENX_ (__NR_chmod, sys_chmod), |
| GENX_ (__NR_fchmod, sys_fchmod), |
| GENX_ (__NR_chown, sys_chown), |
| GENX_ (__NR_fchown, sys_fchown), |
| GENX_ (__NR_lchown, sys_lchown), |
| GENX_ (__NR_umask, sys_umask), |
| GENXY (__NR_gettimeofday, sys_gettimeofday), |
| GENXY (__NR_getrlimit, sys_getrlimit), |
| GENXY (__NR_getrusage, sys_getrusage), |
| LINXY (__NR_sysinfo, sys_sysinfo), |
| GENXY (__NR_times, sys_times), |
| PLAXY (__NR_ptrace, sys_ptrace), |
| GENX_ (__NR_getuid, sys_getuid), |
| LINXY (__NR_syslog, sys_syslog), |
| GENX_ (__NR_getgid, sys_getgid), |
| GENX_ (__NR_setuid, sys_setuid), |
| GENX_ (__NR_setgid, sys_setgid), |
| GENX_ (__NR_geteuid, sys_geteuid), |
| GENX_ (__NR_getegid, sys_getegid), |
| GENX_ (__NR_setpgid, sys_setpgid), |
| GENX_ (__NR_getppid, sys_getppid), |
| GENX_ (__NR_getpgrp, sys_getpgrp), |
| GENX_ (__NR_setsid, sys_setsid), |
| GENX_ (__NR_setreuid, sys_setreuid), |
| GENX_ (__NR_setregid, sys_setregid), |
| GENXY (__NR_getgroups, sys_getgroups), |
| GENX_ (__NR_setgroups, sys_setgroups), |
| LINX_ (__NR_setresuid, sys_setresuid), |
| LINXY (__NR_getresuid, sys_getresuid), |
| LINX_ (__NR_setresgid, sys_setresgid), |
| LINXY (__NR_getresgid, sys_getresgid), |
| GENX_ (__NR_getpgid, sys_getpgid), |
| LINX_ (__NR_setfsuid, sys_setfsuid), |
| LINX_ (__NR_setfsgid, sys_setfsgid), |
| GENX_ (__NR_getsid, sys_getsid), |
| LINXY (__NR_capget, sys_capget), |
| LINX_ (__NR_capset, sys_capset), |
| LINXY (__NR_rt_sigpending, sys_rt_sigpending), |
| LINXY (__NR_rt_sigtimedwait, sys_rt_sigtimedwait), |
| LINXY (__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo), |
| LINX_ (__NR_rt_sigsuspend, sys_rt_sigsuspend), |
| GENXY (__NR_sigaltstack, sys_sigaltstack), |
| LINX_ (__NR_utime, sys_utime), |
| GENX_ (__NR_mknod, sys_mknod), |
| LINX_ (__NR_personality, sys_personality), |
| PLAX_ (__NR_ustat, sys_ustat), |
| GENXY (__NR_statfs, sys_statfs), |
| GENXY (__NR_fstatfs, sys_fstatfs), |
| PLAX_ (__NR_sysfs, sys_sysfs), |
| GENX_ (__NR_getpriority, sys_getpriority), |
| GENX_ (__NR_setpriority, sys_setpriority), |
| LINXY (__NR_sched_setparam, sys_sched_setparam), |
| LINXY (__NR_sched_getparam, sys_sched_getparam), |
| LINX_ (__NR_sched_setscheduler, sys_sched_setscheduler), |
| LINX_ (__NR_sched_getscheduler, sys_sched_getscheduler), |
| LINX_ (__NR_sched_get_priority_max, sys_sched_get_priority_max), |
| LINX_ (__NR_sched_get_priority_min, sys_sched_get_priority_min), |
| PLAX_ (__NR_sched_rr_get_interval, sys_sched_rr_get_interval), |
| GENX_ (__NR_mlock, sys_mlock), |
| GENX_ (__NR_munlock, sys_munlock), |
| GENX_ (__NR_mlockall, sys_mlockall), |
| LINX_ (__NR_munlockall, sys_munlockall), |
| LINX_ (__NR_vhangup, sys_vhangup), |
| LINX_ (__NR_pivot_root,sys_pivot_root), |
| LINXY (__NR__sysctl, sys_sysctl), |
| LINXY (__NR_prctl, sys_prctl), |
| LINXY (__NR_adjtimex, sys_adjtimex), |
| GENX_ (__NR_setrlimit, sys_setrlimit), |
| GENX_ (__NR_chroot, sys_chroot), |
| GENX_ (__NR_sync, sys_sync), |
| GENX_ (__NR_acct, sys_acct), |
| GENX_ (__NR_settimeofday, sys_settimeofday), |
| LINX_ (__NR_mount, sys_mount), |
| LINX_ (__NR_umount2, sys_umount), |
| PLAX_ (__NR_swapon, sys_swapon), |
| PLAX_ (__NR_swapoff, sys_swapoff), |
| PLAX_ (__NR_reboot, sys_reboot), |
| PLAX_ (__NR_sethostname, sys_sethostname), |
| PLAX_ (__NR_setdomainname, sys_setdomainname), |
| GENX_ (__NR_create_module, sys_ni_syscall), |
| LINX_ (__NR_init_module, sys_init_module), |
| LINX_ (__NR_delete_module, sys_delete_module), |
| GENX_ (__NR_get_kernel_syms, sys_ni_syscall), |
| GENX_ (__NR_query_module, sys_ni_syscall), |
| LINX_ (__NR_quotactl, sys_quotactl), |
| /* GENX_(__NR_nfsservctl,sys_nfsservctl), */ |
| GENXY (__NR_getpmsg, sys_getpmsg), |
| GENX_ (__NR_putpmsg, sys_putpmsg), |
| GENX_ (__NR_afs_syscall, sys_ni_syscall), |
| /* GENX_(__NR_reserved177,sys_reserved177), */ |
| LINX_ (__NR_gettid, sys_gettid), |
| /* GENX_(__NR_readahead,sys_readahead), */ |
| LINX_ (__NR_setxattr, sys_setxattr), |
| LINX_ (__NR_lsetxattr, sys_lsetxattr), |
| LINX_ (__NR_fsetxattr, sys_fsetxattr), |
| LINXY (__NR_getxattr, sys_getxattr), |
| LINXY (__NR_lgetxattr, sys_lgetxattr), |
| LINXY (__NR_fgetxattr, sys_fgetxattr), |
| LINXY (__NR_listxattr, sys_listxattr), |
| LINXY (__NR_llistxattr, sys_llistxattr), |
| LINXY (__NR_flistxattr, sys_flistxattr), |
| LINX_ (__NR_removexattr, sys_removexattr), |
| LINX_ (__NR_lremovexattr, sys_lremovexattr), |
| LINX_ (__NR_fremovexattr, sys_fremovexattr), |
| LINXY (__NR_tkill, sys_tkill), |
| /* GENX_(__NR_reserved193,sys_reserved193), */ |
| LINXY (__NR_futex, sys_futex), |
| LINX_ (__NR_sched_setaffinity, sys_sched_setaffinity), |
| LINXY (__NR_sched_getaffinity, sys_sched_getaffinity), |
| PLAX_ (__NR_cacheflush, sys_cacheflush), |
| LINXY (__NR_io_setup, sys_io_setup), |
| LINX_ (__NR_io_destroy, sys_io_destroy), |
| LINXY (__NR_io_getevents, sys_io_getevents), |
| LINX_ (__NR_io_submit, sys_io_submit), |
| LINXY (__NR_io_cancel, sys_io_cancel), |
| LINX_ (__NR_exit_group, sys_exit_group), |
| /* LINXY (__NR_lookup_dcookie, sys_lookup_dcookie), */ |
| LINXY (__NR_epoll_create, sys_epoll_create), |
| LINXY (__NR_epoll_create1, sys_epoll_create1), |
| LINX_ (__NR_epoll_ctl, sys_epoll_ctl), |
| LINXY (__NR_epoll_wait, sys_epoll_wait), |
| PLAX_(__NR_rt_sigreturn,sys_rt_sigreturn), |
| /* LINXY(__NR_fcntl64,sys_fcntl64), */ |
| LINX_ (__NR_set_tid_address, sys_set_tid_address), |
| LINX_ (__NR_semtimedop, sys_semtimedop), |
| LINX_ (__NR_fadvise64, sys_fadvise64), |
| LINXY (__NR_timer_create, sys_timer_create), |
| LINXY (__NR_timer_settime, sys_timer_settime), |
| LINXY (__NR_timer_gettime, sys_timer_gettime), |
| LINX_ (__NR_timer_getoverrun, sys_timer_getoverrun), |
| LINX_ (__NR_timer_delete, sys_timer_delete), |
| LINX_ (__NR_clock_settime, sys_clock_settime), |
| LINXY (__NR_clock_gettime, sys_clock_gettime), |
| LINXY (__NR_clock_getres, sys_clock_getres), |
| LINXY (__NR_clock_nanosleep, sys_clock_nanosleep), |
| LINX_ (__NR_tgkill, sys_tgkill), |
| GENX_ (__NR_utimes, sys_utimes), |
| LINX_ (__NR_mbind, sys_mbind), |
| LINXY (__NR_get_mempolicy, sys_get_mempolicy), |
| LINX_ (__NR_set_mempolicy, sys_set_mempolicy), |
| LINXY (__NR_mq_open, sys_mq_open), |
| LINX_ (__NR_mq_unlink, sys_mq_unlink), |
| LINX_ (__NR_mq_timedsend, sys_mq_timedsend), |
| LINXY (__NR_mq_timedreceive, sys_mq_timedreceive), |
| LINX_ (__NR_mq_notify, sys_mq_notify), |
| LINXY (__NR_mq_getsetattr, sys_mq_getsetattr), |
| GENX_ (__NR_vserver, sys_ni_syscall), |
| LINXY (__NR_waitid, sys_waitid), |
| LINX_ (__NR_add_key, sys_add_key), |
| LINX_ (__NR_request_key, sys_request_key), |
| LINXY (__NR_keyctl, sys_keyctl), |
| PLAX_ (__NR_set_thread_area, sys_set_thread_area), |
| LINX_ (__NR_inotify_init, sys_inotify_init), |
| LINX_ (__NR_inotify_add_watch, sys_inotify_add_watch), |
| LINX_ (__NR_inotify_rm_watch, sys_inotify_rm_watch), |
| LINXY (__NR_openat, sys_openat), |
| LINX_ (__NR_mkdirat, sys_mkdirat), |
| LINX_ (__NR_mknodat, sys_mknodat), |
| LINX_ (__NR_fchownat, sys_fchownat), |
| LINX_ (__NR_futimesat, sys_futimesat), |
| LINX_ (__NR_unlinkat, sys_unlinkat), |
| LINX_ (__NR_renameat, sys_renameat), |
| LINX_ (__NR_linkat, sys_linkat), |
| LINX_ (__NR_symlinkat, sys_symlinkat), |
| LINX_ (__NR_readlinkat, sys_readlinkat), |
| LINX_ (__NR_fchmodat, sys_fchmodat), |
| LINX_ (__NR_faccessat, sys_faccessat), |
| LINX_ (__NR_pselect6, sys_pselect6), |
| LINXY (__NR_ppoll, sys_ppoll), |
| PLAX_ (__NR_unshare, sys_unshare), |
| PLAX_ (__NR_splice, sys_splice), |
| LINX_ (__NR_sync_file_range, sys_sync_file_range), |
| PLAX_ (__NR_tee, sys_tee), |
| PLAX_ (__NR_vmsplice, sys_vmsplice), |
| LINX_ (__NR_set_robust_list, sys_set_robust_list), |
| LINXY (__NR_get_robust_list, sys_get_robust_list), |
| LINXY (__NR_epoll_pwait, sys_epoll_pwait), |
| LINX_ (__NR_ioprio_set, sys_ioprio_set), |
| LINX_ (__NR_ioprio_get, sys_ioprio_get), |
| LINX_ (__NR_utimensat, sys_utimensat), |
| LINXY (__NR_signalfd, sys_signalfd), |
| LINXY (__NR_eventfd, sys_eventfd), |
| LINX_ (__NR_fallocate, sys_fallocate), |
| LINXY (__NR_timerfd_create, sys_timerfd_create), |
| LINXY (__NR_timerfd_gettime, sys_timerfd_gettime), |
| LINXY (__NR_timerfd_settime, sys_timerfd_settime), |
| LINXY (__NR_newfstatat, sys_newfstatat), |
| LINXY (__NR_prlimit64, sys_prlimit64), |
| LINXY (__NR_clock_adjtime, sys_clock_adjtime), |
| LINXY (__NR_process_vm_readv, sys_process_vm_readv), |
| LINX_ (__NR_process_vm_writev, sys_process_vm_writev), |
| LINXY(__NR_getrandom, sys_getrandom), |
| LINXY(__NR_memfd_create, sys_memfd_create) |
| }; |
| |
| SyscallTableEntry * ML_(get_linux_syscall_entry) ( UInt sysno ) |
| { |
| const UInt syscall_main_table_size |
| = sizeof(syscall_main_table) / sizeof(syscall_main_table[0]); |
| |
| if (sysno < syscall_main_table_size) { |
| SyscallTableEntry * sys = &syscall_main_table[sysno]; |
| if (sys->before == NULL) |
| return NULL; /* no entry */ |
| else |
| return sys; |
| } |
| /* Can't find a wrapper */ |
| return NULL; |
| } |
| |
| #endif /* defined(VGP_mips64_linux) */ |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end syswrap-mips64-linux.c ---*/ |
| /*--------------------------------------------------------------------*/ |
