blob: c6de921e0d77a25a73c2095912c2f53a584ec032 [file] [log] [blame]
/*--------------------------------------------------------------------*/
/*--- Platform-specific syscalls stuff. syswrap-arm64-linux.c -----*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2013-2013 OpenWorks
info@open-works.net
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_arm64_linux)
#include "pub_core_basics.h"
#include "pub_core_vki.h"
#include "pub_core_vkiscnums.h"
#include "pub_core_libcsetjmp.h" // to keep _threadstate.h happy
#include "pub_core_threadstate.h"
#include "pub_core_aspacemgr.h"
//ZZ #include "pub_core_debuglog.h"
#include "pub_core_libcbase.h"
#include "pub_core_libcassert.h"
#include "pub_core_libcprint.h"
//ZZ #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)()
//ZZ #include "pub_core_signals.h"
#include "pub_core_syscall.h"
#include "pub_core_syswrap.h"
#include "pub_core_tooliface.h"
#include "pub_core_stacks.h" // VG_(register_stack)
//ZZ #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 */
//ZZ #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 );
// r0 = stack
// r1 = retaddr
// r2 = f
// r3 = arg1
asm(
".text\n"
".globl vgModuleLocal_call_on_new_stack_0_1\n"
"vgModuleLocal_call_on_new_stack_0_1:\n"
" mov sp, x0\n\t" /* Stack pointer */
" mov x30, x1\n\t" /* Return address (x30 is LR) */
" mov x0, x3\n\t" /* First argument */
" mov x9, x2\n\t" /* 'f': x9 won't be zeroed at start of f. Oh well. */
" mov x1, #0\n\t" /* Clear our GPRs */
" mov x2, #0\n\t"
" mov x3, #0\n\t"
" mov x4, #0\n\t"
" mov x5, #0\n\t"
" mov x6, #0\n\t"
" mov x7, #0\n\t"
" mov x8, #0\n\t"
/* don't zero out x9 */
" mov x10, #0\n\t"
" mov x11, #0\n\t"
" mov x12, #0\n\t"
" mov x13, #0\n\t"
" mov x14, #0\n\t"
" mov x15, #0\n\t"
" mov x16, #0\n\t"
" mov x17, #0\n\t"
" mov x18, #0\n\t"
" mov x19, #0\n\t"
" mov x20, #0\n\t"
" mov x21, #0\n\t"
" mov x22, #0\n\t"
" mov x23, #0\n\t"
" mov x24, #0\n\t"
" mov x25, #0\n\t"
" mov x26, #0\n\t"
" mov x27, #0\n\t"
" mov x28, #0\n\t"
" mov x29, sp\n\t" /* FP = SP, in the absence of better suggestions */
" br x9\n\t"
".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 x0
void* child_stack in x1
int flags in x2
void* arg in x3
pid_t* child_tid in x4
pid_t* parent_tid in x5
void* tls_ptr in x6
System call requires:
int $__NR_clone in x8
int flags in x0
void* child_stack in x1
pid_t* parent_tid in x2
void* tls_ptr in x3
pid_t* child_tid in x4
Returns a Long encoded in the linux-arm64 way, not a SysRes.
*/
#define __NR_CLONE VG_STRINGIFY(__NR_clone)
#define __NR_EXIT VG_STRINGIFY(__NR_exit)
extern
Long do_syscall_clone_arm64_linux ( Word (*fn)(void *),
void* child_stack,
Long flags,
void* arg,
Int* child_tid,
Int* parent_tid,
void* tls );
asm(
".text\n"
".globl do_syscall_clone_arm64_linux\n"
"do_syscall_clone_arm64_linux:\n"
// set up child stack, temporarily preserving fn and arg
" sub x1, x1, #16\n" // make space on stack
" str x3, [x1, #8]\n" // save arg
" str x0, [x1, #0]\n" // save fn
// setup syscall
" mov x8, #"__NR_CLONE"\n" // syscall number
" mov x0, x2\n" // syscall arg1: flags
" mov x1, x1\n" // syscall arg2: child_stack
" mov x2, x5\n" // syscall arg3: parent_tid
" mov x3, x6\n" // syscall arg4: tls_ptr
" mov x4, x4\n" // syscall arg5: child_tid
" svc 0\n" // clone()
" cmp x0, #0\n" // child if retval == 0
" bne 1f\n"
// CHILD - call thread function
" ldr x1, [sp, #0]\n" // pop fn
" ldr x0, [sp, #8]\n" // pop fn arg1: arg
" add sp, sp, #16\n"
" blr x1\n" // call fn
// exit with result
" mov x0, x0\n" // arg1: return value from fn
" mov x8, #"__NR_EXIT"\n"
" svc 0\n"
// Exit returned?!
" .word 0xFFFFFFFF\n"
"1:\n" // PARENT or ERROR. x0 holds return value from the clone syscall.
" ret\n"
".previous\n"
);
#undef __NR_CLONE
#undef __NR_EXIT
// forward declaration
static void setup_child ( ThreadArchState*, ThreadArchState* );
static void assign_guest_tls(ThreadId ctid, Addr tlsptr);
//ZZ 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,
ULong flags,
Addr child_xsp,
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);
UWord* stack;
NSegment const* seg;
SysRes res;
ULong x0;
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 xsp for the new thread, then
it actually gets a copy of the parent's xsp.
*/
setup_child( &ctst->arch, &ptst->arch );
/* Make sys_clone appear to have returned Success(0) in the
child. */
ctst->arch.vex.guest_X0 = 0;
if (child_xsp != 0)
ctst->arch.vex.guest_XSP = child_xsp;
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;
/* We don't really know where the client stack is, because its
allocated by the client. The best we can do is look at the
memory mappings and try to derive some useful information. We
assume that xsp starts near its highest possible value, and can
only go down to the start of the mmaped segment. */
seg = VG_(am_find_nsegment)((Addr)child_xsp);
if (seg && seg->kind != SkResvn) {
ctst->client_stack_highest_word = (Addr)VG_PGROUNDUP(child_xsp);
ctst->client_stack_szB = ctst->client_stack_highest_word - seg->start;
VG_(register_stack)(seg->start, ctst->client_stack_highest_word);
if (debug)
VG_(printf)("tid %d: guessed client stack range %#lx-%#lx\n",
ctid, seg->start, VG_PGROUNDUP(child_xsp));
} else {
VG_(message)(
Vg_UserMsg,
"!? New thread %d starts with sp+%#lx) unmapped\n", ctid, child_xsp
);
ctst->client_stack_szB = 0;
}
/* 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) {
/* Just assign the tls pointer in the guest TPIDR_EL0. */
assign_guest_tls(ctid, child_tls);
}
flags &= ~VKI_CLONE_SETTLS;
/* start the thread with everything blocked */
VG_(sigprocmask)(VKI_SIG_SETMASK, &blockall, &savedmask);
x0 = do_syscall_clone_arm64_linux(
ML_(start_thread_NORETURN), stack, flags, &VG_(threads)[ctid],
child_tidptr, parent_tidptr, NULL
);
res = VG_(mk_SysRes_arm64_linux)( x0 );
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
------------------------------------------------------------------ */
// ARM64 doesn't have any architecture specific thread stuff that
// needs to be cleaned up
void VG_(cleanup_thread) ( ThreadArchState* arch )
{
}
void setup_child ( /*OUT*/ ThreadArchState *child,
/*IN*/ ThreadArchState *parent )
{
child->vex = parent->vex;
child->vex_shadow1 = parent->vex_shadow1;
child->vex_shadow2 = parent->vex_shadow2;
}
static void assign_guest_tls(ThreadId tid, Addr tlsptr)
{
VG_(threads)[tid].arch.vex.guest_TPIDR_EL0 = tlsptr;
}
//ZZ /* Assigns tlsptr to the guest TPIDRURO.
//ZZ If needed for the specific hardware, really executes
//ZZ the set_tls syscall.
//ZZ */
//ZZ static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr )
//ZZ {
//ZZ assign_guest_tls(tid, tlsptr);
//ZZ #if defined(ANDROID_HARDWARE_emulator)
//ZZ /* Android emulator does not provide an hw tls register.
//ZZ So, the tls register is emulated by the kernel.
//ZZ This emulated value is set by the __NR_ARM_set_tls syscall.
//ZZ The emulated value must be read by the kernel helper function
//ZZ located at 0xffff0fe0.
//ZZ
//ZZ The emulated tlsptr is located at 0xffff0ff0
//ZZ (so slightly after the kernel helper function).
//ZZ Note that applications are not supposed to read this directly.
//ZZ
//ZZ For compatibility : if there is a hw tls register, the kernel
//ZZ will put at 0xffff0fe0 the instructions to read it, so
//ZZ as to have old applications calling the kernel helper
//ZZ working properly.
//ZZ
//ZZ For having emulated guest TLS working correctly with
//ZZ Valgrind, it is needed to execute the syscall to set
//ZZ the emulated TLS value in addition to the assignment
//ZZ of TPIDRURO.
//ZZ
//ZZ Note: the below means that if we need thread local storage
//ZZ for Valgrind host, then there will be a conflict between
//ZZ the need of the guest tls and of the host tls.
//ZZ If all the guest code would cleanly call 0xffff0fe0,
//ZZ then we might maybe intercept this. However, at least
//ZZ __libc_preinit reads directly 0xffff0ff0.
//ZZ */
//ZZ /* ??? might call the below if auxv->u.a_val & VKI_HWCAP_TLS ???
//ZZ Unclear if real hardware having tls hw register sets
//ZZ VKI_HWCAP_TLS. */
//ZZ return VG_(do_syscall1) (__NR_ARM_set_tls, tlsptr);
//ZZ #else
//ZZ return VG_(mk_SysRes_Success)( 0 );
//ZZ #endif
//ZZ }
/* ---------------------------------------------------------------------
PRE/POST wrappers for arm/Linux-specific syscalls
------------------------------------------------------------------ */
#define PRE(name) DEFN_PRE_TEMPLATE(arm64_linux, name)
#define POST(name) DEFN_POST_TEMPLATE(arm64_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(arm64_linux, sys_fadvise64);
DECL_TEMPLATE(arm64_linux, sys_mmap);
//ZZ DECL_TEMPLATE(arm_linux, sys_stat64);
//ZZ DECL_TEMPLATE(arm_linux, sys_lstat64);
//ZZ DECL_TEMPLATE(arm_linux, sys_fstatat64);
//ZZ DECL_TEMPLATE(arm_linux, sys_fstat64);
DECL_TEMPLATE(arm64_linux, sys_clone);
//ZZ DECL_TEMPLATE(arm_linux, sys_sigreturn);
DECL_TEMPLATE(arm64_linux, sys_rt_sigreturn);
//ZZ DECL_TEMPLATE(arm_linux, sys_sigsuspend);
//ZZ DECL_TEMPLATE(arm_linux, sys_set_tls);
//ZZ DECL_TEMPLATE(arm_linux, sys_cacheflush);
//ZZ DECL_TEMPLATE(arm_linux, sys_ptrace);
//ZZ PRE(sys_mmap2)
//ZZ {
//ZZ SysRes r;
//ZZ
//ZZ // Exactly like old_mmap() except:
//ZZ // - all 6 args are passed in regs, rather than in a memory-block.
//ZZ // - the file offset is specified in pagesize units rather than bytes,
//ZZ // so that it can be used for files bigger than 2^32 bytes.
//ZZ // pagesize or 4K-size units in offset? For ppc32/64-linux, this is
//ZZ // 4K-sized. Assert that the page size is 4K here for safety.
//ZZ vg_assert(VKI_PAGE_SIZE == 4096);
//ZZ PRINT("sys_mmap2 ( %#lx, %llu, %ld, %ld, %ld, %ld )",
//ZZ ARG1, (ULong)ARG2, ARG3, ARG4, ARG5, ARG6 );
//ZZ PRE_REG_READ6(long, "mmap2",
//ZZ unsigned long, start, unsigned long, length,
//ZZ unsigned long, prot, unsigned long, flags,
//ZZ unsigned long, fd, unsigned long, offset);
//ZZ
//ZZ r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5,
//ZZ 4096 * (Off64T)ARG6 );
//ZZ SET_STATUS_from_SysRes(r);
//ZZ }
// ARM64 FIXME is this correct?
PRE(sys_fadvise64)
{
PRINT("sys_fadvise64 ( %ld, %ld, %lu, %ld )", ARG1,ARG2,ARG3,ARG4);
PRE_REG_READ4(long, "fadvise64",
int, fd, vki_loff_t, offset, vki_size_t, len, int, advice);
}
// ARM64 FIXME is this correct?
PRE(sys_mmap)
{
SysRes r;
PRINT("sys_mmap ( %#lx, %llu, %ld, %ld, %d, %ld )",
ARG1, (ULong)ARG2, ARG3, ARG4, (Int)ARG5, ARG6 );
PRE_REG_READ6(long, "mmap",
unsigned long, start, unsigned long, length,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, unsigned long, offset);
r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 );
SET_STATUS_from_SysRes(r);
}
//ZZ
//ZZ // XXX: lstat64/fstat64/stat64 are generic, but not necessarily
//ZZ // applicable to every architecture -- I think only to 32-bit archs.
//ZZ // We're going to need something like linux/core_os32.h for such
//ZZ // things, eventually, I think. --njn
//ZZ PRE(sys_lstat64)
//ZZ {
//ZZ PRINT("sys_lstat64 ( %#lx(%s), %#lx )",ARG1,(char*)ARG1,ARG2);
//ZZ PRE_REG_READ2(long, "lstat64", char *, file_name, struct stat64 *, buf);
//ZZ PRE_MEM_RASCIIZ( "lstat64(file_name)", ARG1 );
//ZZ PRE_MEM_WRITE( "lstat64(buf)", ARG2, sizeof(struct vki_stat64) );
//ZZ }
//ZZ
//ZZ POST(sys_lstat64)
//ZZ {
//ZZ vg_assert(SUCCESS);
//ZZ if (RES == 0) {
//ZZ POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
//ZZ }
//ZZ }
//ZZ
//ZZ PRE(sys_stat64)
//ZZ {
//ZZ PRINT("sys_stat64 ( %#lx(%s), %#lx )",ARG1,(char*)ARG1,ARG2);
//ZZ PRE_REG_READ2(long, "stat64", char *, file_name, struct stat64 *, buf);
//ZZ PRE_MEM_RASCIIZ( "stat64(file_name)", ARG1 );
//ZZ PRE_MEM_WRITE( "stat64(buf)", ARG2, sizeof(struct vki_stat64) );
//ZZ }
//ZZ
//ZZ POST(sys_stat64)
//ZZ {
//ZZ POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
//ZZ }
//ZZ
//ZZ PRE(sys_fstatat64)
//ZZ {
//ZZ PRINT("sys_fstatat64 ( %ld, %#lx(%s), %#lx )",ARG1,ARG2,(char*)ARG2,ARG3);
//ZZ PRE_REG_READ3(long, "fstatat64",
//ZZ int, dfd, char *, file_name, struct stat64 *, buf);
//ZZ PRE_MEM_RASCIIZ( "fstatat64(file_name)", ARG2 );
//ZZ PRE_MEM_WRITE( "fstatat64(buf)", ARG3, sizeof(struct vki_stat64) );
//ZZ }
//ZZ
//ZZ POST(sys_fstatat64)
//ZZ {
//ZZ POST_MEM_WRITE( ARG3, sizeof(struct vki_stat64) );
//ZZ }
//ZZ
//ZZ PRE(sys_fstat64)
//ZZ {
//ZZ PRINT("sys_fstat64 ( %ld, %#lx )",ARG1,ARG2);
//ZZ PRE_REG_READ2(long, "fstat64", unsigned long, fd, struct stat64 *, buf);
//ZZ PRE_MEM_WRITE( "fstat64(buf)", ARG2, sizeof(struct vki_stat64) );
//ZZ }
//ZZ
//ZZ POST(sys_fstat64)
//ZZ {
//ZZ POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
//ZZ }
/* Aarch64 seems to use CONFIG_CLONE_BACKWARDS in the kernel. See:
http://dev.gentoo.org/~vapier/aarch64/linux-3.12.6.config
http://people.redhat.com/wcohen/aarch64/aarch64_config
from linux-3.10.5/kernel/fork.c
#ifdef CONFIG_CLONE_BACKWARDS
SYSCALL_DEFINE5(clone, unsigned long, clone_flags, unsigned long, newsp,
int __user *, parent_tidptr,
int, tls_val,
int __user *, child_tidptr)
*/
PRE(sys_clone)
{
UInt cloneflags;
PRINT("sys_clone ( %lx, %#lx, %#lx, %#lx, %#lx )",ARG1,ARG2,ARG3,ARG4,ARG5);
PRE_REG_READ5(int, "clone",
unsigned long, flags,
void *, child_stack,
int *, parent_tidptr,
void *, child_tls,
int *, child_tidptr);
if (ARG1 & VKI_CLONE_PARENT_SETTID) {
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;
}
}
//ZZ if (ARG1 & VKI_CLONE_SETTLS) {
//ZZ PRE_MEM_READ("clone(tls_user_desc)", ARG4, sizeof(vki_modify_ldt_t));
//ZZ if (!VG_(am_is_valid_for_client)(ARG4, sizeof(vki_modify_ldt_t),
//ZZ VKI_PROT_READ)) {
//ZZ SET_STATUS_Failure( VKI_EFAULT );
//ZZ return;
//ZZ }
//ZZ }
if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID)) {
PRE_MEM_WRITE("clone(child_tidptr)", ARG5, sizeof(Int));
if (!VG_(am_is_valid_for_client)(ARG5, 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 SP */
(Int*)ARG3, /* parent_tidptr */
(Int*)ARG5, /* child_tidptr */
(Addr)ARG4)); /* tls_val */
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, "");
VG_(message)(Vg_UserMsg, "Unsupported clone() flags: 0x%lx", ARG1);
VG_(message)(Vg_UserMsg, "");
VG_(message)(Vg_UserMsg, "The only supported clone() uses are:");
VG_(message)(Vg_UserMsg, " - via a threads library (LinuxThreads or NPTL)");
VG_(message)(Vg_UserMsg, " - via the implementation of fork or vfork");
VG_(message)(Vg_UserMsg, " - for the Quadrics Elan3 user-space driver");
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;
}
}
//ZZ PRE(sys_sigreturn)
//ZZ {
//ZZ /* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
//ZZ an explanation of what follows. */
//ZZ
//ZZ PRINT("sys_sigreturn ( )");
//ZZ
//ZZ vg_assert(VG_(is_valid_tid)(tid));
//ZZ vg_assert(tid >= 1 && tid < VG_N_THREADS);
//ZZ vg_assert(VG_(is_running_thread)(tid));
//ZZ
//ZZ /* Restore register state from frame and remove it */
//ZZ VG_(sigframe_destroy)(tid, False);
//ZZ
//ZZ /* Tell the driver not to update the guest state with the "result",
//ZZ and set a bogus result to keep it happy. */
//ZZ *flags |= SfNoWriteResult;
//ZZ SET_STATUS_Success(0);
//ZZ
//ZZ /* Check to see if any signals arose as a result of this. */
//ZZ *flags |= SfPollAfter;
//ZZ }
PRE(sys_rt_sigreturn)
{
/* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
an explanation of what follows. */
PRINT("rt_sigreturn ( )");
vg_assert(VG_(is_valid_tid)(tid));
vg_assert(tid >= 1 && tid < VG_N_THREADS);
vg_assert(VG_(is_running_thread)(tid));
/* 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;
}
//ZZ /* NB: clone of x86-linux version, and ppc32-linux has an almost
//ZZ identical one. */
//ZZ PRE(sys_sigsuspend)
//ZZ {
//ZZ /* The C library interface to sigsuspend just takes a pointer to
//ZZ a signal mask but this system call has three arguments - the first
//ZZ two don't appear to be used by the kernel and are always passed as
//ZZ zero by glibc and the third is the first word of the signal mask
//ZZ so only 32 signals are supported.
//ZZ
//ZZ In fact glibc normally uses rt_sigsuspend if it is available as
//ZZ that takes a pointer to the signal mask so supports more signals.
//ZZ */
//ZZ *flags |= SfMayBlock;
//ZZ PRINT("sys_sigsuspend ( %ld, %ld, %ld )", ARG1,ARG2,ARG3 );
//ZZ PRE_REG_READ3(int, "sigsuspend",
//ZZ int, history0, int, history1,
//ZZ vki_old_sigset_t, mask);
//ZZ }
//ZZ
//ZZ /* Very much ARM specific */
//ZZ
//ZZ PRE(sys_set_tls)
//ZZ {
//ZZ PRINT("set_tls (%lx)",ARG1);
//ZZ PRE_REG_READ1(long, "set_tls", unsigned long, addr);
//ZZ
//ZZ SET_STATUS_from_SysRes( sys_set_tls( tid, ARG1 ) );
//ZZ }
//ZZ
//ZZ PRE(sys_cacheflush)
//ZZ {
//ZZ PRINT("cacheflush (%lx, %#lx, %#lx)",ARG1,ARG2,ARG3);
//ZZ PRE_REG_READ3(long, "cacheflush", void*, addrlow,void*, addrhigh,int, flags);
//ZZ VG_(discard_translations)( (Addr64)ARG1,
//ZZ ((ULong)ARG2) - ((ULong)ARG1) + 1ULL/*paranoia*/,
//ZZ "PRE(sys_cacheflush)" );
//ZZ SET_STATUS_Success(0);
//ZZ }
//ZZ
//ZZ // ARG3 is only used for pointers into the traced process's address
//ZZ // space and for offsets into the traced process's struct
//ZZ // user_regs_struct. It is never a pointer into this process's memory
//ZZ // space, and we should therefore not check anything it points to.
//ZZ PRE(sys_ptrace)
//ZZ {
//ZZ PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", ARG1,ARG2,ARG3,ARG4);
//ZZ PRE_REG_READ4(int, "ptrace",
//ZZ long, request, long, pid, long, addr, long, data);
//ZZ switch (ARG1) {
//ZZ case VKI_PTRACE_PEEKTEXT:
//ZZ case VKI_PTRACE_PEEKDATA:
//ZZ case VKI_PTRACE_PEEKUSR:
//ZZ PRE_MEM_WRITE( "ptrace(peek)", ARG4,
//ZZ sizeof (long));
//ZZ break;
//ZZ case VKI_PTRACE_GETREGS:
//ZZ PRE_MEM_WRITE( "ptrace(getregs)", ARG4,
//ZZ sizeof (struct vki_user_regs_struct));
//ZZ break;
//ZZ case VKI_PTRACE_GETFPREGS:
//ZZ PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4,
//ZZ sizeof (struct vki_user_fp));
//ZZ break;
//ZZ case VKI_PTRACE_GETWMMXREGS:
//ZZ PRE_MEM_WRITE( "ptrace(getwmmxregs)", ARG4,
//ZZ VKI_IWMMXT_SIZE);
//ZZ break;
//ZZ case VKI_PTRACE_GETCRUNCHREGS:
//ZZ PRE_MEM_WRITE( "ptrace(getcrunchregs)", ARG4,
//ZZ VKI_CRUNCH_SIZE);
//ZZ break;
//ZZ case VKI_PTRACE_GETVFPREGS:
//ZZ PRE_MEM_WRITE( "ptrace(getvfpregs)", ARG4,
//ZZ sizeof (struct vki_user_vfp) );
//ZZ break;
//ZZ case VKI_PTRACE_GETHBPREGS:
//ZZ PRE_MEM_WRITE( "ptrace(gethbpregs)", ARG4,
//ZZ sizeof (unsigned long) );
//ZZ break;
//ZZ case VKI_PTRACE_SETREGS:
//ZZ PRE_MEM_READ( "ptrace(setregs)", ARG4,
//ZZ sizeof (struct vki_user_regs_struct));
//ZZ break;
//ZZ case VKI_PTRACE_SETFPREGS:
//ZZ PRE_MEM_READ( "ptrace(setfpregs)", ARG4,
//ZZ sizeof (struct vki_user_fp));
//ZZ break;
//ZZ case VKI_PTRACE_SETWMMXREGS:
//ZZ PRE_MEM_READ( "ptrace(setwmmxregs)", ARG4,
//ZZ VKI_IWMMXT_SIZE);
//ZZ break;
//ZZ case VKI_PTRACE_SETCRUNCHREGS:
//ZZ PRE_MEM_READ( "ptrace(setcrunchregs)", ARG4,
//ZZ VKI_CRUNCH_SIZE);
//ZZ break;
//ZZ case VKI_PTRACE_SETVFPREGS:
//ZZ PRE_MEM_READ( "ptrace(setvfpregs)", ARG4,
//ZZ sizeof (struct vki_user_vfp));
//ZZ break;
//ZZ case VKI_PTRACE_SETHBPREGS:
//ZZ PRE_MEM_READ( "ptrace(sethbpregs)", ARG4, sizeof(unsigned long));
//ZZ break;
//ZZ case VKI_PTRACE_GET_THREAD_AREA:
//ZZ PRE_MEM_WRITE( "ptrace(get_thread_area)", ARG4, sizeof(unsigned long));
//ZZ break;
//ZZ case VKI_PTRACE_GETEVENTMSG:
//ZZ PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
//ZZ break;
//ZZ case VKI_PTRACE_GETSIGINFO:
//ZZ PRE_MEM_WRITE( "ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
//ZZ break;
//ZZ case VKI_PTRACE_SETSIGINFO:
//ZZ PRE_MEM_READ( "ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
//ZZ break;
//ZZ case VKI_PTRACE_GETREGSET:
//ZZ ML_(linux_PRE_getregset)(tid, ARG3, ARG4);
//ZZ break;
//ZZ case VKI_PTRACE_SETREGSET:
//ZZ ML_(linux_PRE_setregset)(tid, ARG3, ARG4);
//ZZ break;
//ZZ default:
//ZZ break;
//ZZ }
//ZZ }
//ZZ
//ZZ POST(sys_ptrace)
//ZZ {
//ZZ switch (ARG1) {
//ZZ case VKI_PTRACE_PEEKTEXT:
//ZZ case VKI_PTRACE_PEEKDATA:
//ZZ case VKI_PTRACE_PEEKUSR:
//ZZ POST_MEM_WRITE( ARG4, sizeof (long));
//ZZ break;
//ZZ case VKI_PTRACE_GETREGS:
//ZZ POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct));
//ZZ break;
//ZZ case VKI_PTRACE_GETFPREGS:
//ZZ POST_MEM_WRITE( ARG4, sizeof (struct vki_user_fp));
//ZZ break;
//ZZ case VKI_PTRACE_GETWMMXREGS:
//ZZ POST_MEM_WRITE( ARG4, VKI_IWMMXT_SIZE);
//ZZ break;
//ZZ case VKI_PTRACE_GETCRUNCHREGS:
//ZZ POST_MEM_WRITE( ARG4, VKI_CRUNCH_SIZE);
//ZZ break;
//ZZ case VKI_PTRACE_GETVFPREGS:
//ZZ POST_MEM_WRITE( ARG4, sizeof(struct vki_user_vfp));
//ZZ break;
//ZZ case VKI_PTRACE_GET_THREAD_AREA:
//ZZ case VKI_PTRACE_GETHBPREGS:
//ZZ case VKI_PTRACE_GETEVENTMSG:
//ZZ POST_MEM_WRITE( ARG4, sizeof(unsigned long));
//ZZ break;
//ZZ case VKI_PTRACE_GETSIGINFO:
//ZZ /* XXX: This is a simplification. Different parts of the
//ZZ * siginfo_t are valid depending on the type of signal.
//ZZ */
//ZZ POST_MEM_WRITE( ARG4, sizeof(vki_siginfo_t));
//ZZ break;
//ZZ case VKI_PTRACE_GETREGSET:
//ZZ ML_(linux_POST_getregset)(tid, ARG3, ARG4);
//ZZ break;
//ZZ default:
//ZZ break;
//ZZ }
//ZZ }
//ZZ
//ZZ #undef PRE
//ZZ #undef POST
/* ---------------------------------------------------------------------
The arm64/Linux syscall table
------------------------------------------------------------------ */
//ZZ #if 0
//ZZ #define __NR_OABI_SYSCALL_BASE 0x900000
//ZZ #else
//ZZ #define __NR_OABI_SYSCALL_BASE 0x0
//ZZ #endif
#define PLAX_(sysno, name) WRAPPER_ENTRY_X_(arm64_linux, sysno, name)
#define PLAXY(sysno, name) WRAPPER_ENTRY_XY(arm64_linux, sysno, name)
// This table maps from __NR_xxx syscall numbers (from
// linux/include/asm-arm/unistd.h) to the appropriate PRE/POST sys_foo()
// wrappers on arm64 (as per sys_call_table in linux/arch/arm/kernel/entry.S).
//
// For those syscalls not handled by Valgrind, the annotation indicate its
// arch/OS combination, eg. */* (generic), */Linux (Linux only), ?/?
// (unknown).
static SyscallTableEntry syscall_main_table[] = {
LINXY(__NR_getxattr, sys_getxattr), // 8
LINXY(__NR_lgetxattr, sys_lgetxattr), // 9
GENXY(__NR_getcwd, sys_getcwd), // 17
LINXY(__NR_eventfd2, sys_eventfd2), // 19
LINXY(__NR_epoll_create1, sys_epoll_create1), // 20
LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 21
LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 22
GENXY(__NR_dup, sys_dup), // 23
LINXY(__NR_dup3, sys_dup3), // 24
// FIXME IS THIS CORRECT?
LINXY(__NR3264_fcntl, sys_fcntl), // 25
LINXY(__NR_inotify_init1, sys_inotify_init1), // 26
LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 27
LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 28
LINXY(__NR_ioctl, sys_ioctl), // 29
LINX_(__NR_mkdirat, sys_mkdirat), // 34
LINX_(__NR_unlinkat, sys_unlinkat), // 35
LINX_(__NR_symlinkat, sys_symlinkat), // 36
LINX_(__NR_renameat, sys_renameat), // 38
// FIXME IS THIS CORRECT? it may well not be.
GENXY(__NR3264_statfs, sys_statfs), // 43
GENXY(__NR3264_fstatfs, sys_fstatfs), // 44
// FIXME IS THIS CORRECT? it may well not be.
GENX_(__NR3264_ftruncate, sys_ftruncate), // 46
LINX_(__NR_fallocate, sys_fallocate), // 47
LINX_(__NR_faccessat, sys_faccessat), // 48
GENX_(__NR_chdir, sys_chdir), // 49
LINXY(__NR_openat, sys_openat), // 56
GENXY(__NR_close, sys_close), // 57
LINXY(__NR_pipe2, sys_pipe2), // 59
LINX_(__NR_quotactl, sys_quotactl), // 60
GENXY(__NR_getdents64, sys_getdents64), // 61
// FIXME IS THIS CORRECT?
LINX_(__NR3264_lseek, sys_lseek), // 62
GENXY(__NR_read, sys_read), // 63
GENX_(__NR_write, sys_write), // 64
GENXY(__NR_readv, sys_readv), // 65
GENX_(__NR_writev, sys_writev), // 66
GENX_(__NR_pwrite64, sys_pwrite64), // 68
LINX_(__NR_pselect6, sys_pselect6), // 72
LINXY(__NR_ppoll, sys_ppoll), // 73
LINXY(__NR_signalfd4, sys_signalfd4), // 74
LINX_(__NR_readlinkat, sys_readlinkat), // 78
// FIXME IS THIS CORRECT?
LINXY(__NR3264_fstatat, sys_newfstatat), // 79
GENXY(__NR3264_fstat, sys_newfstat), // 80
LINX_(__NR_utimensat, sys_utimensat), // 88
GENX_(__NR_fsync, sys_fsync), // 82
LINXY(__NR_timerfd_create, sys_timerfd_create), // 85
LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 86
LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 87
LINXY(__NR_capget, sys_capget), // 90
GENX_(__NR_exit, sys_exit), // 93
LINX_(__NR_exit_group, sys_exit_group), // 94
LINX_(__NR_set_tid_address, sys_set_tid_address), // 96
LINXY(__NR_futex, sys_futex), // 98
LINX_(__NR_set_robust_list, sys_set_robust_list), // 99
GENXY(__NR_nanosleep, sys_nanosleep), // 101
GENXY(__NR_setitimer, sys_setitimer), // 103
LINXY(__NR_clock_gettime, sys_clock_gettime), // 113
LINXY(__NR_clock_getres, sys_clock_getres), // 114
LINXY(__NR_syslog, sys_syslog), // 116
LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 123
LINX_(__NR_sched_yield, sys_sched_yield), // 124
GENX_(__NR_kill, sys_kill), // 129
LINX_(__NR_tgkill, sys_tgkill), // 131
GENXY(__NR_sigaltstack, sys_sigaltstack), // 132
LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 133
LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 134
LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 135
LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait), // 137
LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo), // 138
PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 139
GENX_(__NR_setpriority, sys_setpriority), // 140
GENX_(__NR_getpriority, sys_getpriority), // 141
LINX_(__NR_setresuid, sys_setresuid), // 147
LINXY(__NR_getresuid, sys_getresuid), // 148
LINXY(__NR_getresgid, sys_getresgid), // 150
GENX_(__NR_setpgid, sys_setpgid), // 154
GENX_(__NR_getpgid, sys_getpgid), // 155
GENXY(__NR_uname, sys_newuname), // 160
GENXY(__NR_getrlimit, sys_old_getrlimit), // 163
GENX_(__NR_setrlimit, sys_setrlimit), // 164
GENXY(__NR_getrusage, sys_getrusage), // 165
GENX_(__NR_umask, sys_umask), // 166
LINXY(__NR_prctl, sys_prctl), // 167
GENXY(__NR_gettimeofday, sys_gettimeofday), // 169
GENX_(__NR_getpid, sys_getpid), // 172
GENX_(__NR_getppid, sys_getppid), // 173
GENX_(__NR_getuid, sys_getuid), // 174
GENX_(__NR_geteuid, sys_geteuid), // 175
GENX_(__NR_getgid, sys_getgid), // 176
GENX_(__NR_getegid, sys_getegid), // 177
LINX_(__NR_gettid, sys_gettid), // 178
LINXY(__NR_sysinfo, sys_sysinfo), // 179
LINXY(__NR_mq_open, sys_mq_open), // 180
LINX_(__NR_mq_unlink, sys_mq_unlink), // 181
LINX_(__NR_mq_timedsend, sys_mq_timedsend), // 182
LINXY(__NR_mq_timedreceive, sys_mq_timedreceive), // 183
LINX_(__NR_mq_notify, sys_mq_notify), // 184
LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // 185
LINX_(__NR_semget, sys_semget), // 190
LINXY(__NR_semctl, sys_semctl), // 191
LINX_(__NR_semtimedop, sys_semtimedop), // 192
LINX_(__NR_semop, sys_semop), // 193
LINX_(__NR_shmget, sys_shmget), // 194
LINXY(__NR_shmctl, sys_shmctl), // 195
LINXY(__NR_shmat, wrap_sys_shmat), // 196
LINXY(__NR_shmdt, sys_shmdt), // 197
LINXY(__NR_socket, sys_socket), // 198
LINXY(__NR_socketpair, sys_socketpair), // 199
LINX_(__NR_bind, sys_bind), // 200
LINX_(__NR_listen, sys_listen), // 201
LINXY(__NR_accept, sys_accept), // 202
LINX_(__NR_connect, sys_connect), // 203
LINXY(__NR_getsockname, sys_getsockname), // 204
LINXY(__NR_getpeername, sys_getpeername), // 205
LINX_(__NR_sendto, sys_sendto), // 206
LINXY(__NR_recvfrom, sys_recvfrom), // 207
LINX_(__NR_setsockopt, sys_setsockopt), // 208
LINXY(__NR_getsockopt, sys_getsockopt), // 209
LINX_(__NR_shutdown, sys_shutdown), // 210
LINX_(__NR_sendmsg, sys_sendmsg), // 211
LINXY(__NR_recvmsg, sys_recvmsg), // 212
LINX_(__NR_readahead, sys_readahead), // 213
GENX_(__NR_brk, sys_brk), // 214
GENXY(__NR_munmap, sys_munmap), // 215
GENX_(__NR_mremap, sys_mremap), // 216
LINX_(__NR_add_key, sys_add_key), // 217
LINXY(__NR_keyctl, sys_keyctl), // 219
PLAX_(__NR_clone, sys_clone), // 220
GENX_(__NR_execve, sys_execve), // 221
// FIXME IS THIS CORRECT?
PLAX_(__NR3264_mmap, sys_mmap), // 222
PLAX_(__NR3264_fadvise64, sys_fadvise64), // 223
GENXY(__NR_mprotect, sys_mprotect), // 226
GENX_(__NR_madvise, sys_madvise), // 233
GENXY(__NR_wait4, sys_wait4), // 260
LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 270
LINX_(__NR_process_vm_writev, sys_process_vm_writev), // 271
// The numbers below are bogus. (See comment further down.)
// When pulling entries above this line, change the numbers
// to be correct.
//ZZ //zz // (restart_syscall) // 0
//ZZ GENX_(__NR_fork, sys_fork), // 2
//ZZ
//ZZ GENXY(__NR_open, sys_open), // 5
//ZZ // GENXY(__NR_waitpid, sys_waitpid), // 7
//ZZ GENXY(__NR_creat, sys_creat), // 8
//ZZ GENX_(__NR_link, sys_link), // 9
//ZZ
//ZZ GENX_(__NR_unlink, sys_unlink), // 10
//ZZ GENXY(__NR_time, sys_time), // 13
//ZZ GENX_(__NR_mknod, sys_mknod), // 14
//ZZ
//ZZ GENX_(__NR_chmod, sys_chmod), // 15
//ZZ //zz LINX_(__NR_lchown, sys_lchown16), // 16
//ZZ // GENX_(__NR_break, sys_ni_syscall), // 17
//ZZ //zz // (__NR_oldstat, sys_stat), // 18 (obsolete)
//ZZ LINX_(__NR_lseek, sys_lseek), // 19
//ZZ
//ZZ GENX_(__NR_getpid, sys_getpid), // 20
//ZZ LINX_(__NR_mount, sys_mount), // 21
//ZZ LINX_(__NR_umount, sys_oldumount), // 22
//ZZ LINX_(__NR_setuid, sys_setuid16), // 23 ## P
//ZZ LINX_(__NR_getuid, sys_getuid16), // 24 ## P
//ZZ //zz
//ZZ //zz // (__NR_stime, sys_stime), // 25 * (SVr4,SVID,X/OPEN)
//ZZ PLAXY(__NR_ptrace, sys_ptrace), // 26
//ZZ GENX_(__NR_alarm, sys_alarm), // 27
//ZZ //zz // (__NR_oldfstat, sys_fstat), // 28 * L -- obsolete
//ZZ GENX_(__NR_pause, sys_pause), // 29
//ZZ
//ZZ LINX_(__NR_utime, sys_utime), // 30
//ZZ // GENX_(__NR_stty, sys_ni_syscall), // 31
//ZZ // GENX_(__NR_gtty, sys_ni_syscall), // 32
//ZZ GENX_(__NR_access, sys_access), // 33
//ZZ GENX_(__NR_nice, sys_nice), // 34
//ZZ
//ZZ // GENX_(__NR_ftime, sys_ni_syscall), // 35
//ZZ GENX_(__NR_sync, sys_sync), // 36
//ZZ GENX_(__NR_rename, sys_rename), // 38
//ZZ GENX_(__NR_mkdir, sys_mkdir), // 39
//ZZ
//ZZ GENX_(__NR_rmdir, sys_rmdir), // 40
//ZZ LINXY(__NR_pipe, sys_pipe), // 42
//ZZ GENXY(__NR_times, sys_times), // 43
//ZZ // GENX_(__NR_prof, sys_ni_syscall), // 44
//ZZ LINX_(__NR_setgid, sys_setgid16), // 46
//ZZ LINX_(__NR_getgid, sys_getgid16), // 47
//ZZ //zz // (__NR_signal, sys_signal), // 48 */* (ANSI C)
//ZZ LINX_(__NR_geteuid, sys_geteuid16), // 49
//ZZ
//ZZ LINX_(__NR_getegid, sys_getegid16), // 50
//ZZ GENX_(__NR_acct, sys_acct), // 51
//ZZ LINX_(__NR_umount2, sys_umount), // 52
//ZZ // GENX_(__NR_lock, sys_ni_syscall), // 53
//ZZ
//ZZ LINXY(__NR_fcntl, sys_fcntl), // 55
//ZZ // GENX_(__NR_mpx, sys_ni_syscall), // 56
//ZZ // GENX_(__NR_ulimit, sys_ni_syscall), // 58
//ZZ //zz // (__NR_oldolduname, sys_olduname), // 59 Linux -- obsolete
//ZZ //zz
//ZZ GENX_(__NR_chroot, sys_chroot), // 61
//ZZ //zz // (__NR_ustat, sys_ustat) // 62 SVr4 -- deprecated
//ZZ GENXY(__NR_dup2, sys_dup2), // 63
//ZZ GENX_(__NR_getppid, sys_getppid), // 64
//ZZ
//ZZ GENX_(__NR_getpgrp, sys_getpgrp), // 65
//ZZ GENX_(__NR_setsid, sys_setsid), // 66
//ZZ LINXY(__NR_sigaction, sys_sigaction), // 67
//ZZ //zz // (__NR_sgetmask, sys_sgetmask), // 68 */* (ANSI C)
//ZZ //zz // (__NR_ssetmask, sys_ssetmask), // 69 */* (ANSI C)
//ZZ //zz
//ZZ LINX_(__NR_setreuid, sys_setreuid16), // 70
//ZZ LINX_(__NR_setregid, sys_setregid16), // 71
//ZZ PLAX_(__NR_sigsuspend, sys_sigsuspend), // 72
//ZZ LINXY(__NR_sigpending, sys_sigpending), // 73
//ZZ //zz // (__NR_sethostname, sys_sethostname), // 74 */*
//ZZ //zz
//ZZ GENXY(__NR_getrlimit, sys_old_getrlimit), // 76
//ZZ GENX_(__NR_settimeofday, sys_settimeofday), // 79
//ZZ
//ZZ LINXY(__NR_getgroups, sys_getgroups16), // 80
//ZZ LINX_(__NR_setgroups, sys_setgroups16), // 81
//ZZ // PLAX_(__NR_select, old_select), // 82
//ZZ GENX_(__NR_symlink, sys_symlink), // 83
//ZZ //zz // (__NR_oldlstat, sys_lstat), // 84 -- obsolete
//ZZ //zz
//ZZ GENX_(__NR_readlink, sys_readlink), // 85
//ZZ //zz // (__NR_uselib, sys_uselib), // 86 */Linux
//ZZ //zz // (__NR_swapon, sys_swapon), // 87 */Linux
//ZZ //zz // (__NR_reboot, sys_reboot), // 88 */Linux
//ZZ //zz // (__NR_readdir, old_readdir), // 89 -- superseded
//ZZ //zz
//ZZ // _____(__NR_mmap, old_mmap), // 90
//ZZ GENXY(__NR_munmap, sys_munmap), // 91
//ZZ GENX_(__NR_truncate, sys_truncate), // 92
//ZZ GENX_(__NR_ftruncate, sys_ftruncate), // 93
//ZZ GENX_(__NR_fchmod, sys_fchmod), // 94
//ZZ
//ZZ LINX_(__NR_fchown, sys_fchown16), // 95
//ZZ // GENX_(__NR_profil, sys_ni_syscall), // 98
//ZZ GENXY(__NR_statfs, sys_statfs), // 99
//ZZ
//ZZ GENXY(__NR_fstatfs, sys_fstatfs), // 100
//ZZ // LINX_(__NR_ioperm, sys_ioperm), // 101
//ZZ LINXY(__NR_socketcall, sys_socketcall), // 102
//ZZ
//ZZ GENXY(__NR_getitimer, sys_getitimer), // 105
//ZZ GENXY(__NR_stat, sys_newstat), // 106
//ZZ GENXY(__NR_lstat, sys_newlstat), // 107
//ZZ GENXY(__NR_fstat, sys_newfstat), // 108
//ZZ //zz // (__NR_olduname, sys_uname), // 109 -- obsolete
//ZZ //zz
//ZZ // GENX_(__NR_iopl, sys_iopl), // 110
//ZZ LINX_(__NR_vhangup, sys_vhangup), // 111
//ZZ // GENX_(__NR_idle, sys_ni_syscall), // 112
//ZZ // PLAXY(__NR_vm86old, sys_vm86old), // 113 __NR_syscall... weird
//ZZ //zz
//ZZ //zz // (__NR_swapoff, sys_swapoff), // 115 */Linux
//ZZ // _____(__NR_ipc, sys_ipc), // 117
//ZZ GENX_(__NR_fsync, sys_fsync), // 118
//ZZ PLAX_(__NR_sigreturn, sys_sigreturn), // 119 ?/Linux
//ZZ
//ZZ //zz // (__NR_setdomainname, sys_setdomainname), // 121 */*(?)
//ZZ // PLAX_(__NR_modify_ldt, sys_modify_ldt), // 123
//ZZ //zz LINXY(__NR_adjtimex, sys_adjtimex), // 124
//ZZ //zz
//ZZ LINXY(__NR_sigprocmask, sys_sigprocmask), // 126
//ZZ //zz // Nb: create_module() was removed 2.4-->2.6
//ZZ // GENX_(__NR_create_module, sys_ni_syscall), // 127
//ZZ LINX_(__NR_init_module, sys_init_module), // 128
//ZZ LINX_(__NR_delete_module, sys_delete_module), // 129
//ZZ //zz
//ZZ //zz // Nb: get_kernel_syms() was removed 2.4-->2.6
//ZZ // GENX_(__NR_get_kernel_syms, sys_ni_syscall), // 130
//ZZ GENX_(__NR_getpgid, sys_getpgid), // 132
//ZZ GENX_(__NR_fchdir, sys_fchdir), // 133
//ZZ //zz // (__NR_bdflush, sys_bdflush), // 134 */Linux
//ZZ //zz
//ZZ //zz // (__NR_sysfs, sys_sysfs), // 135 SVr4
//ZZ LINX_(__NR_personality, sys_personality), // 136
//ZZ // GENX_(__NR_afs_syscall, sys_ni_syscall), // 137
//ZZ LINX_(__NR_setfsuid, sys_setfsuid16), // 138
//ZZ LINX_(__NR_setfsgid, sys_setfsgid16), // 139
//ZZ
//ZZ LINXY(__NR__llseek, sys_llseek), // 140
//ZZ GENXY(__NR_getdents, sys_getdents), // 141
//ZZ GENX_(__NR__newselect, sys_select), // 142
//ZZ GENX_(__NR_flock, sys_flock), // 143
//ZZ GENX_(__NR_msync, sys_msync), // 144
//ZZ
//ZZ GENX_(__NR_getsid, sys_getsid), // 147
//ZZ GENX_(__NR_fdatasync, sys_fdatasync), // 148
//ZZ LINXY(__NR__sysctl, sys_sysctl), // 149
//ZZ
//ZZ GENX_(__NR_mlock, sys_mlock), // 150
//ZZ GENX_(__NR_munlock, sys_munlock), // 151
//ZZ GENX_(__NR_mlockall, sys_mlockall), // 152
//ZZ LINX_(__NR_munlockall, sys_munlockall), // 153
//ZZ LINXY(__NR_sched_setparam, sys_sched_setparam), // 154
//ZZ
//ZZ LINXY(__NR_sched_getparam, sys_sched_getparam), // 155
//ZZ LINX_(__NR_sched_setscheduler, sys_sched_setscheduler), // 156
//ZZ LINX_(__NR_sched_getscheduler, sys_sched_getscheduler), // 157
//ZZ LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max),// 159
//ZZ
//ZZ LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min),// 160
//ZZ //zz //LINX?(__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 161 */*
//ZZ LINX_(__NR_setresuid, sys_setresuid16), // 164
//ZZ
//ZZ LINXY(__NR_getresuid, sys_getresuid16), // 165
//ZZ // PLAXY(__NR_vm86, sys_vm86), // 166 x86/Linux-only
//ZZ // GENX_(__NR_query_module, sys_ni_syscall), // 167
//ZZ GENXY(__NR_poll, sys_poll), // 168
//ZZ //zz // (__NR_nfsservctl, sys_nfsservctl), // 169 */Linux
//ZZ //zz
//ZZ LINX_(__NR_setresgid, sys_setresgid16), // 170
//ZZ LINXY(__NR_getresgid, sys_getresgid16), // 171
//ZZ LINXY(__NR_prctl, sys_prctl), // 172
//ZZ LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 174
//ZZ
//ZZ LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 176
//ZZ LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait),// 177
//ZZ
//ZZ GENXY(__NR_pread64, sys_pread64), // 180
//ZZ LINX_(__NR_chown, sys_chown16), // 182
//ZZ
//ZZ LINX_(__NR_capset, sys_capset), // 185
//ZZ LINXY(__NR_sendfile, sys_sendfile), // 187
//ZZ // GENXY(__NR_getpmsg, sys_getpmsg), // 188
//ZZ // GENX_(__NR_putpmsg, sys_putpmsg), // 189
//ZZ
//ZZ // Nb: we treat vfork as fork
//ZZ GENX_(__NR_vfork, sys_fork), // 190
//ZZ GENXY(__NR_ugetrlimit, sys_getrlimit), // 191
//ZZ GENX_(__NR_truncate64, sys_truncate64), // 193
//ZZ GENX_(__NR_ftruncate64, sys_ftruncate64), // 194
//ZZ
//ZZ PLAXY(__NR_stat64, sys_stat64), // 195
//ZZ PLAXY(__NR_lstat64, sys_lstat64), // 196
//ZZ PLAXY(__NR_fstat64, sys_fstat64), // 197
//ZZ GENX_(__NR_lchown32, sys_lchown), // 198
//ZZ GENX_(__NR_getuid32, sys_getuid), // 199
//ZZ
//ZZ GENX_(__NR_getgid32, sys_getgid), // 200
//ZZ GENX_(__NR_geteuid32, sys_geteuid), // 201
//ZZ GENX_(__NR_getegid32, sys_getegid), // 202
//ZZ GENX_(__NR_setreuid32, sys_setreuid), // 203
//ZZ GENX_(__NR_setregid32, sys_setregid), // 204
//ZZ
//ZZ GENXY(__NR_getgroups32, sys_getgroups), // 205
//ZZ GENX_(__NR_setgroups32, sys_setgroups), // 206
//ZZ GENX_(__NR_fchown32, sys_fchown), // 207
//ZZ LINX_(__NR_setresuid32, sys_setresuid), // 208
//ZZ LINXY(__NR_getresuid32, sys_getresuid), // 209
//ZZ
//ZZ LINX_(__NR_setresgid32, sys_setresgid), // 210
//ZZ LINXY(__NR_getresgid32, sys_getresgid), // 211
//ZZ GENX_(__NR_chown32, sys_chown), // 212
//ZZ GENX_(__NR_setuid32, sys_setuid), // 213
//ZZ GENX_(__NR_setgid32, sys_setgid), // 214
//ZZ
//ZZ LINX_(__NR_setfsuid32, sys_setfsuid), // 215
//ZZ LINX_(__NR_setfsgid32, sys_setfsgid), // 216
//ZZ //zz // (__NR_pivot_root, sys_pivot_root), // 217 */Linux
//ZZ GENXY(__NR_mincore, sys_mincore), // 218
//ZZ
//ZZ LINXY(__NR_fcntl64, sys_fcntl64), // 221
//ZZ // GENX_(222, sys_ni_syscall), // 222
//ZZ // PLAXY(223, sys_syscall223), // 223 // sys_bproc?
//ZZ
//ZZ LINX_(__NR_setxattr, sys_setxattr), // 226
//ZZ LINX_(__NR_lsetxattr, sys_lsetxattr), // 227
//ZZ LINX_(__NR_fsetxattr, sys_fsetxattr), // 228
//ZZ
//ZZ LINXY(__NR_fgetxattr, sys_fgetxattr), // 231
//ZZ LINXY(__NR_listxattr, sys_listxattr), // 232
//ZZ LINXY(__NR_llistxattr, sys_llistxattr), // 233
//ZZ LINXY(__NR_flistxattr, sys_flistxattr), // 234
//ZZ
//ZZ LINX_(__NR_removexattr, sys_removexattr), // 235
//ZZ LINX_(__NR_lremovexattr, sys_lremovexattr), // 236
//ZZ LINX_(__NR_fremovexattr, sys_fremovexattr), // 237
//ZZ LINXY(__NR_tkill, sys_tkill), // 238 */Linux
//ZZ LINXY(__NR_sendfile64, sys_sendfile64), // 239
//ZZ
//ZZ LINXY(__NR_futex, sys_futex), // 240
//ZZ LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 241
//ZZ LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 242
//ZZ // PLAX_(__NR_set_thread_area, sys_set_thread_area), // 243
//ZZ // PLAX_(__NR_get_thread_area, sys_get_thread_area), // 244
//ZZ
//ZZ LINXY(__NR_io_setup, sys_io_setup), // 245
//ZZ LINX_(__NR_io_destroy, sys_io_destroy), // 246
//ZZ LINXY(__NR_io_getevents, sys_io_getevents), // 247
//ZZ LINX_(__NR_io_submit, sys_io_submit), // 248
//ZZ LINXY(__NR_io_cancel, sys_io_cancel), // 249
//ZZ
//ZZ // LINX_(__NR_fadvise64, sys_fadvise64), // 250 */(Linux?)
//ZZ GENX_(251, sys_ni_syscall), // 251
//ZZ // GENXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 253
//ZZ LINXY(__NR_epoll_create, sys_epoll_create), // 254
//ZZ
//ZZ LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 255
//ZZ LINXY(__NR_epoll_wait, sys_epoll_wait), // 256
//ZZ //zz // (__NR_remap_file_pages, sys_remap_file_pages), // 257 */Linux
//ZZ LINX_(__NR_set_tid_address, sys_set_tid_address), // 258
//ZZ LINXY(__NR_timer_create, sys_timer_create), // 259
//ZZ
//ZZ LINXY(__NR_timer_settime, sys_timer_settime), // (timer_create+1)
//ZZ LINXY(__NR_timer_gettime, sys_timer_gettime), // (timer_create+2)
//ZZ LINX_(__NR_timer_getoverrun, sys_timer_getoverrun),//(timer_create+3)
//ZZ LINX_(__NR_timer_delete, sys_timer_delete), // (timer_create+4)
//ZZ LINX_(__NR_clock_settime, sys_clock_settime), // (timer_create+5)
//ZZ
//ZZ LINXY(__NR_clock_getres, sys_clock_getres), // (timer_create+7)
//ZZ LINXY(__NR_clock_nanosleep, sys_clock_nanosleep),// (timer_create+8) */*
//ZZ GENXY(__NR_statfs64, sys_statfs64), // 268
//ZZ GENXY(__NR_fstatfs64, sys_fstatfs64), // 269
//ZZ
//ZZ GENX_(__NR_utimes, sys_utimes), // 271
//ZZ // LINX_(__NR_fadvise64_64, sys_fadvise64_64), // 272 */(Linux?)
//ZZ GENX_(__NR_vserver, sys_ni_syscall), // 273
//ZZ LINX_(__NR_mbind, sys_mbind), // 274 ?/?
//ZZ
//ZZ LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 275 ?/?
//ZZ LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 276 ?/?
//ZZ
//ZZ LINXY(__NR_waitid, sys_waitid), // 280
//ZZ
//ZZ LINX_(__NR_send, sys_send),
//ZZ LINXY(__NR_recv, sys_recv),
//ZZ LINXY(__NR_recvfrom, sys_recvfrom), // 292
//ZZ LINX_(__NR_semget, sys_semget), // 299
//ZZ LINXY(__NR_semctl, sys_semctl), // 300
//ZZ LINX_(__NR_msgget, sys_msgget),
//ZZ LINX_(__NR_msgsnd, sys_msgsnd),
//ZZ LINXY(__NR_msgrcv, sys_msgrcv),
//ZZ LINXY(__NR_msgctl, sys_msgctl), // 304
//ZZ
//ZZ LINX_(__NR_request_key, sys_request_key), // 287
//ZZ // LINX_(__NR_ioprio_set, sys_ioprio_set), // 289
//ZZ
//ZZ // LINX_(__NR_ioprio_get, sys_ioprio_get), // 290
//ZZ LINX_(__NR_inotify_init, sys_inotify_init), // 291
//ZZ // LINX_(__NR_migrate_pages, sys_migrate_pages), // 294
//ZZ
//ZZ LINX_(__NR_mknodat, sys_mknodat), // 297
//ZZ LINX_(__NR_fchownat, sys_fchownat), // 298
//ZZ LINX_(__NR_futimesat, sys_futimesat), // 326 on arm
//ZZ
//ZZ PLAXY(__NR_fstatat64, sys_fstatat64), // 300
//ZZ LINX_(__NR_renameat, sys_renameat), // 302
//ZZ LINX_(__NR_linkat, sys_linkat), // 303
//ZZ LINX_(__NR_symlinkat, sys_symlinkat), // 304
//ZZ
//ZZ LINX_(__NR_fchmodat, sys_fchmodat), //
//ZZ LINX_(__NR_shmget, sys_shmget), //307
//ZZ // LINX_(__NR_pselect6, sys_pselect6), //
//ZZ
//ZZ // LINX_(__NR_unshare, sys_unshare), // 310
//ZZ LINX_(__NR_set_robust_list, sys_set_robust_list), // 311
//ZZ LINXY(__NR_get_robust_list, sys_get_robust_list), // 312
//ZZ // LINX_(__NR_splice, sys_ni_syscall), // 313
//ZZ // LINX_(__NR_sync_file_range, sys_sync_file_range), // 314
//ZZ
//ZZ // LINX_(__NR_tee, sys_ni_syscall), // 315
//ZZ // LINX_(__NR_vmsplice, sys_ni_syscall), // 316
//ZZ LINXY(__NR_move_pages, sys_move_pages), // 317
//ZZ // LINX_(__NR_getcpu, sys_ni_syscall), // 318
//ZZ
//ZZ LINXY(__NR_signalfd, sys_signalfd), // 321
//ZZ LINXY(__NR_eventfd, sys_eventfd), // 323
//ZZ
//ZZ
//ZZ ///////////////
//ZZ
//ZZ // JRS 2010-Jan-03: I believe that all the numbers listed
//ZZ // in comments in the table prior to this point (eg "// 326",
//ZZ // etc) are bogus since it looks to me like they are copied
//ZZ // verbatim from syswrap-x86-linux.c and they certainly do not
//ZZ // correspond to what's in include/vki/vki-scnums-arm-linux.h.
//ZZ // From here onwards, please ensure the numbers are correct.
//ZZ
//ZZ
//ZZ LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 346
//ZZ
//ZZ
//ZZ LINXY(__NR_eventfd2, sys_eventfd2), // 356
//ZZ LINXY(__NR_epoll_create1, sys_epoll_create1), // 357
//ZZ LINXY(__NR_preadv, sys_preadv), // 361
//ZZ LINX_(__NR_pwritev, sys_pwritev), // 362
//ZZ LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 363
//ZZ LINXY(__NR_perf_event_open, sys_perf_event_open), // 364
//ZZ
//ZZ LINXY(__NR_accept4, sys_accept4), // 366
//ZZ
//ZZ LINXY(__NR_name_to_handle_at, sys_name_to_handle_at),// 370
//ZZ LINXY(__NR_open_by_handle_at, sys_open_by_handle_at),// 371
//ZZ LINXY(__NR_clock_adjtime, sys_clock_adjtime) // 372
};
//ZZ /* These are not in the main table because there indexes are not small
//ZZ integers, but rather values close to one million. So their
//ZZ inclusion would force the main table to be huge (about 8 MB). */
//ZZ
//ZZ static SyscallTableEntry ste___ARM_set_tls
//ZZ = { WRAPPER_PRE_NAME(arm_linux,sys_set_tls), NULL };
//ZZ
//ZZ static SyscallTableEntry ste___ARM_cacheflush
//ZZ = { WRAPPER_PRE_NAME(arm_linux,sys_cacheflush), NULL };
SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
{
const UInt syscall_main_table_size
= sizeof(syscall_main_table) / sizeof(syscall_main_table[0]);
/* Is it in the contiguous initial section of the table? */
if (sysno < syscall_main_table_size) {
SyscallTableEntry* sys = &syscall_main_table[sysno];
if (sys->before == NULL)
return NULL; /* no entry */
else
return sys;
}
//ZZ /* Check if it's one of the out-of-line entries. */
//ZZ switch (sysno) {
//ZZ case __NR_ARM_set_tls: return &ste___ARM_set_tls;
//ZZ case __NR_ARM_cacheflush: return &ste___ARM_cacheflush;
//ZZ default: break;
//ZZ }
/* Can't find a wrapper */
return NULL;
}
#endif // defined(VGP_arm64_linux)
/*--------------------------------------------------------------------*/
/*--- end syswrap-arm64-linux.c ---*/
/*--------------------------------------------------------------------*/