/*--------------------------------------------------------------------*/
/*--- Platform-specific syscalls stuff. syswrap-arm64-linux.c -----*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2013-2017 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_threadstate.h"
#include "pub_core_aspacemgr.h"
#include "pub_core_libcbase.h"
#include "pub_core_libcassert.h"
#include "pub_core_libcprint.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_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 */
/* ---------------------------------------------------------------------
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)
// See priv_syswrap-linux.h for arg profile.
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
//ZZ static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr );
/* ---------------------------------------------------------------------
More thread stuff
------------------------------------------------------------------ */
// ARM64 doesn't have any architecture specific thread stuff that
// needs to be cleaned up
void VG_(cleanup_thread) ( ThreadArchState* arch )
{
}
//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);
//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 )", SARG1, SARG2, ARG3, SARG4);
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, %lu, %lu, %#lx, %lu, %lu )",
ARG1, ARG2, ARG3, ARG4, 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 }
//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)( (Addr)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_io_setup, sys_io_setup), // 0
LINX_(__NR_io_destroy, sys_io_destroy), // 1
LINX_(__NR_io_submit, sys_io_submit), // 2
LINXY(__NR_io_cancel, sys_io_cancel), // 3
LINXY(__NR_io_getevents, sys_io_getevents), // 4
LINX_(__NR_setxattr, sys_setxattr), // 5
LINX_(__NR_lsetxattr, sys_lsetxattr), // 6
LINX_(__NR_fsetxattr, sys_fsetxattr), // 7
LINXY(__NR_getxattr, sys_getxattr), // 8
LINXY(__NR_lgetxattr, sys_lgetxattr), // 9
LINXY(__NR_fgetxattr, sys_fgetxattr), // 10
LINXY(__NR_listxattr, sys_listxattr), // 11
LINXY(__NR_llistxattr, sys_llistxattr), // 12
LINXY(__NR_flistxattr, sys_flistxattr), // 13
LINX_(__NR_removexattr, sys_removexattr), // 14
LINX_(__NR_lremovexattr, sys_lremovexattr), // 15
LINX_(__NR_fremovexattr, sys_fremovexattr), // 16
GENXY(__NR_getcwd, sys_getcwd), // 17
LINXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 18
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
LINXY(__NR_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_ioprio_set, sys_ioprio_set), // 30
LINX_(__NR_ioprio_get, sys_ioprio_get), // 31
GENX_(__NR_flock, sys_flock), // 32
LINX_(__NR_mknodat, sys_mknodat), // 33
LINX_(__NR_mkdirat, sys_mkdirat), // 34
LINX_(__NR_unlinkat, sys_unlinkat), // 35
LINX_(__NR_symlinkat, sys_symlinkat), // 36
LINX_(__NR_linkat, sys_linkat), // 37
LINX_(__NR_renameat, sys_renameat), // 38
LINX_(__NR_umount2, sys_umount), // 39
LINX_(__NR_mount, sys_mount), // 40
LINX_(__NR_pivot_root, sys_pivot_root), // 41
// (__NR_nfsservctl, sys_ni_syscall), // 42
GENXY(__NR_statfs, sys_statfs), // 43
GENXY(__NR_fstatfs, sys_fstatfs), // 44
GENX_(__NR_truncate, sys_truncate), // 45
GENX_(__NR_ftruncate, sys_ftruncate), // 46
LINX_(__NR_fallocate, sys_fallocate), // 47
LINX_(__NR_faccessat, sys_faccessat), // 48
GENX_(__NR_chdir, sys_chdir), // 49
GENX_(__NR_fchdir, sys_fchdir), // 50
GENX_(__NR_chroot, sys_chroot), // 51
GENX_(__NR_fchmod, sys_fchmod), // 52
LINX_(__NR_fchmodat, sys_fchmodat), // 53
LINX_(__NR_fchownat, sys_fchownat), // 54
GENX_(__NR_fchown, sys_fchown), // 55
LINXY(__NR_openat, sys_openat), // 56
GENXY(__NR_close, sys_close), // 57
LINX_(__NR_vhangup, sys_vhangup), // 58
LINXY(__NR_pipe2, sys_pipe2), // 59
LINX_(__NR_quotactl, sys_quotactl), // 60
GENXY(__NR_getdents64, sys_getdents64), // 61
LINX_(__NR_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
GENXY(__NR_pread64, sys_pread64), // 67
GENX_(__NR_pwrite64, sys_pwrite64), // 68
LINXY(__NR_preadv, sys_preadv), // 69
LINX_(__NR_pwritev, sys_pwritev), // 70
LINXY(__NR_sendfile, sys_sendfile), // 71
LINXY(__NR_pselect6, sys_pselect6), // 72
LINXY(__NR_ppoll, sys_ppoll), // 73
LINXY(__NR_signalfd4, sys_signalfd4), // 74
LINX_(__NR_vmsplice, sys_vmsplice), // 75
LINX_(__NR_splice, sys_splice), // 76
LINX_(__NR_tee, sys_tee), // 77
LINX_(__NR_readlinkat, sys_readlinkat), // 78
LINXY(__NR_newfstatat, sys_newfstatat), // 79
GENXY(__NR_fstat, sys_newfstat), // 80
GENX_(__NR_sync, sys_sync), // 81
GENX_(__NR_fsync, sys_fsync), // 82
GENX_(__NR_fdatasync, sys_fdatasync), // 83
LINX_(__NR_sync_file_range, sys_sync_file_range), // 84
LINXY(__NR_timerfd_create, sys_timerfd_create), // 85
LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 86
LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 87
LINX_(__NR_utimensat, sys_utimensat), // 88
GENX_(__NR_acct, sys_acct), // 89
LINXY(__NR_capget, sys_capget), // 90
LINX_(__NR_capset, sys_capset), // 91
LINX_(__NR_personality, sys_personality), // 92
GENX_(__NR_exit, sys_exit), // 93
LINX_(__NR_exit_group, sys_exit_group), // 94
LINXY(__NR_waitid, sys_waitid), // 95
LINX_(__NR_set_tid_address, sys_set_tid_address), // 96
LINX_(__NR_unshare, sys_unshare), // 97
LINXY(__NR_futex, sys_futex), // 98
LINX_(__NR_set_robust_list, sys_set_robust_list), // 99
LINXY(__NR_get_robust_list, sys_get_robust_list), // 100
GENXY(__NR_nanosleep, sys_nanosleep), // 101
GENXY(__NR_getitimer, sys_getitimer), // 102
GENXY(__NR_setitimer, sys_setitimer), // 103
GENX_(__NR_kexec_load, sys_ni_syscall), // 104
LINX_(__NR_init_module, sys_init_module), // 105
LINX_(__NR_delete_module, sys_delete_module), // 106
LINXY(__NR_timer_create, sys_timer_create), // 107
LINXY(__NR_timer_gettime, sys_timer_gettime), // 108
LINX_(__NR_timer_getoverrun, sys_timer_getoverrun), // 109
LINXY(__NR_timer_settime, sys_timer_settime), // 110
LINX_(__NR_timer_delete, sys_timer_delete), // 111
LINX_(__NR_clock_settime, sys_clock_settime), // 112
LINXY(__NR_clock_gettime, sys_clock_gettime), // 113
LINXY(__NR_clock_getres, sys_clock_getres), // 114
LINXY(__NR_clock_nanosleep, sys_clock_nanosleep), // 115
LINXY(__NR_syslog, sys_syslog), // 116
// (__NR_ptrace, sys_ptrace), // 117
LINXY(__NR_sched_setparam, sys_sched_setparam), // 118
LINX_(__NR_sched_setscheduler,sys_sched_setscheduler),// 119
LINX_(__NR_sched_getscheduler,sys_sched_getscheduler),// 120
LINXY(__NR_sched_getparam, sys_sched_getparam), // 121
LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 122
LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 123
LINX_(__NR_sched_yield, sys_sched_yield), // 124
LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max),// 125
LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min),// 126
LINXY(__NR_sched_rr_get_interval, sys_sched_rr_get_interval),// 127
// (__NR_restart_syscall, sys_ni_syscall), // 128
GENX_(__NR_kill, sys_kill), // 129
LINXY(__NR_tkill, sys_tkill), // 130
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_sigpending, sys_rt_sigpending), // 136
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
// (__NR_reboot, sys_ni_syscall), // 142
GENX_(__NR_setregid, sys_setregid), // 143
GENX_(__NR_setgid, sys_setgid), // 144
GENX_(__NR_setreuid, sys_setreuid), // 145
GENX_(__NR_setuid, sys_setuid), // 146
LINX_(__NR_setresuid, sys_setresuid), // 147
LINXY(__NR_getresuid, sys_getresuid), // 148
LINX_(__NR_setresgid, sys_setresgid), // 149
LINXY(__NR_getresgid, sys_getresgid), // 150
LINX_(__NR_setfsuid, sys_setfsuid), // 151
LINX_(__NR_setfsgid, sys_setfsgid), // 152
GENXY(__NR_times, sys_times), // 153
GENX_(__NR_setpgid, sys_setpgid), // 154
GENX_(__NR_getpgid, sys_getpgid), // 155
GENX_(__NR_getsid, sys_getsid), // 156
GENX_(__NR_setsid, sys_setsid), // 157
GENXY(__NR_getgroups, sys_getgroups), // 158
GENX_(__NR_setgroups, sys_setgroups), // 159
GENXY(__NR_uname, sys_newuname), // 160
GENX_(__NR_sethostname, sys_sethostname), // 161
// (__NR_setdomainname, sys_ni_syscall), // 162
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
LINXY(__NR_getcpu, sys_getcpu), // 168
GENXY(__NR_gettimeofday, sys_gettimeofday), // 169
GENX_(__NR_settimeofday, sys_settimeofday), // 170
LINXY(__NR_adjtimex, sys_adjtimex), // 171
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_msgget, sys_msgget), // 186
LINXY(__NR_msgctl, sys_msgctl), // 187
LINXY(__NR_msgrcv, sys_msgrcv), // 188
LINX_(__NR_msgsnd, sys_msgsnd), // 189
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, 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
LINX_(__NR_request_key, sys_request_key), // 218
LINXY(__NR_keyctl, sys_keyctl), // 219
LINX_(__NR_clone, sys_clone), // 220
GENX_(__NR_execve, sys_execve), // 221
PLAX_(__NR_mmap, sys_mmap), // 222
PLAX_(__NR_fadvise64, sys_fadvise64), // 223
// (__NR_swapon, sys_swapon), // 224
// (__NR_swapoff, sys_swapoff), // 225
GENXY(__NR_mprotect, sys_mprotect), // 226
GENX_(__NR_msync, sys_msync), // 227
GENX_(__NR_mlock, sys_mlock), // 228
GENX_(__NR_munlock, sys_munlock), // 229
GENX_(__NR_mlockall, sys_mlockall), // 230
LINX_(__NR_munlockall, sys_munlockall), // 231
GENXY(__NR_mincore, sys_mincore), // 232
GENX_(__NR_madvise, sys_madvise), // 233
// (__NR_remap_file_pages, sys_ni_syscall) // 234
LINX_(__NR_mbind, sys_mbind), // 235
LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 236
LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 237
// (__NR_migrate_pages, sys_ni_syscall), // 238
LINXY(__NR_move_pages, sys_move_pages), // 239
LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo), // 240
LINXY(__NR_perf_event_open, sys_perf_event_open), // 241
LINXY(__NR_accept4, sys_accept4), // 242
LINXY(__NR_recvmmsg, sys_recvmmsg), // 243
GENXY(__NR_wait4, sys_wait4), // 260
LINXY(__NR_prlimit64, sys_prlimit64), // 261
LINXY(__NR_fanotify_init, sys_fanotify_init), // 262
LINX_(__NR_fanotify_mark, sys_fanotify_mark), // 263
LINXY(__NR_name_to_handle_at, sys_name_to_handle_at), // 264
LINXY(__NR_open_by_handle_at, sys_open_by_handle_at), // 265
LINXY(__NR_clock_adjtime, sys_clock_adjtime), // 266
LINX_(__NR_syncfs, sys_syncfs), // 267
// (__NR_setns, sys_ni_syscall), // 268
LINXY(__NR_sendmmsg, sys_sendmmsg), // 269
LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 270
LINX_(__NR_process_vm_writev, sys_process_vm_writev), // 271
LINX_(__NR_kcmp, sys_kcmp), // 272
// (__NR_finit_module, sys_ni_syscall), // 273
// (__NR_sched_setattr, sys_ni_syscall), // 274
// (__NR_sched_getattr, sys_ni_syscall), // 275
LINX_(__NR_renameat2, sys_renameat2), // 276
// (__NR_seccomp, sys_ni_syscall), // 277
LINXY(__NR_getrandom, sys_getrandom), // 278
LINXY(__NR_memfd_create, sys_memfd_create), // 279
// (__NR_bpf, sys_ni_syscall) // 280
// (__NR_execveat, sys_ni_syscall), // 281
// (__NR_userfaultfd, sys_ni_syscall), // 282
// (__NR_membarrier, sys_ni_syscall), // 283
// (__NR_mlock2, sys_ni_syscall), // 284
// (__NR_copy_file_range, sys_ni_syscall), // 285
// (__NR_preadv2, sys_ni_syscall), // 286
// (__NR_pwritev2, sys_ni_syscall), // 287
// (__NR_pkey_mprotect, sys_ni_syscall), // 288
// (__NR_pkey_alloc, sys_ni_syscall), // 289
// (__NR_pkey_free, sys_ni_syscall), // 290
};
//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 ---*/
/*--------------------------------------------------------------------*/