mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-08 21:09:49 +00:00
b05a2a18d7
following improvements: - Arch/OS/platform-specific files are now included/excluded via the preprocessor, rather than via the build system. This is more consistent (we use the pre-processor for small arch/OS/platform-specific chunks within files) and makes the build system much simpler, as the sources for all programs are the same on all platforms. - Vast amounts of cut+paste Makefile.am code has been factored out. If a new platform is implemented, you need to add 11 extra Makefile.am lines. Previously it was over 100 lines. - Vex has been autotoolised. Dependency checking now works in Vex (no more incomplete builds). Parallel builds now also work. --with-vex no longer works; it's little use and a pain to support. VEX/Makefile is still in the Vex repository and gets overwritten at configure-time; it should probably be renamed Makefile-gcc to avoid possible problems, such as accidentally committing a generated Makefile. There's a bunch of hacky copying to deal with the fact that autotools don't handle same-named files in different directories. Julian plans to rename the files to avoid this problem. - Various small Makefile.am things have been made more standard automake style, eg. the use of pkginclude/pkglib prefixes instead of rolling our own. - The existing five top-level Makefile.am include files have been consolidated into three. - Most Makefile.am files now are structured more clearly, with comment headers separating sections, declarations relating to the same things next to each other, better spacing and layout, etc. - Removed the unused exp-ptrcheck/tests/x86 directory. - Renamed some XML files. - Factored out some duplicated dSYM handling code. - Split auxprogs/ into auxprogs/ and mpi/, which allowed the resulting Makefile.am files to be much more standard. - Cleaned up m_coredump by merging a bunch of files that had been overzealously separated. The net result is 630 fewer lines of Makefile.am code, or 897 if you exclude the added Makefile.vex.am, or 997 once the hacky file copying for Vex is removed. And the build system is much simpler. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10364
2258 lines
80 KiB
C
2258 lines
80 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Platform-specific syscalls stuff. syswrap-x86-linux.c ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2009 Nicholas Nethercote
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njn@valgrind.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#if defined(VGP_x86_linux)
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/* TODO/FIXME jrs 20050207: assignments to the syscall return result
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in interrupted_syscall() need to be reviewed. They don't seem
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to assign the shadow state.
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*/
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#include "pub_core_basics.h"
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#include "pub_core_vki.h"
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#include "pub_core_vkiscnums.h"
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#include "pub_core_threadstate.h"
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#include "pub_core_aspacemgr.h"
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#include "pub_core_debuglog.h"
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#include "pub_core_libcbase.h"
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#include "pub_core_libcassert.h"
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#include "pub_core_libcprint.h"
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#include "pub_core_libcproc.h"
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#include "pub_core_libcsignal.h"
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#include "pub_core_mallocfree.h"
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#include "pub_core_options.h"
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#include "pub_core_scheduler.h"
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#include "pub_core_sigframe.h" // For VG_(sigframe_destroy)()
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#include "pub_core_signals.h"
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#include "pub_core_syscall.h"
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#include "pub_core_syswrap.h"
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#include "pub_core_tooliface.h"
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#include "pub_core_stacks.h" // VG_(register_stack)
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#include "priv_types_n_macros.h"
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#include "priv_syswrap-generic.h" /* for decls of generic wrappers */
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#include "priv_syswrap-linux.h" /* for decls of linux-ish wrappers */
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#include "priv_syswrap-linux-variants.h" /* decls of linux variant wrappers */
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#include "priv_syswrap-main.h"
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/* ---------------------------------------------------------------------
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clone() handling
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------------------------------------------------------------------ */
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/* Call f(arg1), but first switch stacks, using 'stack' as the new
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stack, and use 'retaddr' as f's return-to address. Also, clear all
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the integer registers before entering f.*/
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__attribute__((noreturn))
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void ML_(call_on_new_stack_0_1) ( Addr stack,
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Addr retaddr,
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void (*f)(Word),
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Word arg1 );
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// 4(%esp) == stack
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// 8(%esp) == retaddr
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// 12(%esp) == f
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// 16(%esp) == arg1
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asm(
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".text\n"
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".globl vgModuleLocal_call_on_new_stack_0_1\n"
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"vgModuleLocal_call_on_new_stack_0_1:\n"
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" movl %esp, %esi\n" // remember old stack pointer
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" movl 4(%esi), %esp\n" // set stack
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" pushl 16(%esi)\n" // arg1 to stack
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" pushl 8(%esi)\n" // retaddr to stack
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" pushl 12(%esi)\n" // f to stack
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" movl $0, %eax\n" // zero all GP regs
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" movl $0, %ebx\n"
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" movl $0, %ecx\n"
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" movl $0, %edx\n"
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" movl $0, %esi\n"
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" movl $0, %edi\n"
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" movl $0, %ebp\n"
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" ret\n" // jump to f
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" ud2\n" // should never get here
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".previous\n"
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);
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/*
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Perform a clone system call. clone is strange because it has
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fork()-like return-twice semantics, so it needs special
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handling here.
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Upon entry, we have:
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int (fn)(void*) in 0+FSZ(%esp)
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void* child_stack in 4+FSZ(%esp)
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int flags in 8+FSZ(%esp)
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void* arg in 12+FSZ(%esp)
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pid_t* child_tid in 16+FSZ(%esp)
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pid_t* parent_tid in 20+FSZ(%esp)
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void* tls_ptr in 24+FSZ(%esp)
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System call requires:
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int $__NR_clone in %eax
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int flags in %ebx
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void* child_stack in %ecx
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pid_t* parent_tid in %edx
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pid_t* child_tid in %edi
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void* tls_ptr in %esi
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Returns an Int encoded in the linux-x86 way, not a SysRes.
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*/
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#define FSZ "4+4+4+4" /* frame size = retaddr+ebx+edi+esi */
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#define __NR_CLONE VG_STRINGIFY(__NR_clone)
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#define __NR_EXIT VG_STRINGIFY(__NR_exit)
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extern
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Int do_syscall_clone_x86_linux ( Word (*fn)(void *),
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void* stack,
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Int flags,
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void* arg,
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Int* child_tid,
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Int* parent_tid,
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vki_modify_ldt_t * );
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asm(
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".text\n"
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"do_syscall_clone_x86_linux:\n"
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" push %ebx\n"
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" push %edi\n"
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" push %esi\n"
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/* set up child stack with function and arg */
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" movl 4+"FSZ"(%esp), %ecx\n" /* syscall arg2: child stack */
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" movl 12+"FSZ"(%esp), %ebx\n" /* fn arg */
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" movl 0+"FSZ"(%esp), %eax\n" /* fn */
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" lea -8(%ecx), %ecx\n" /* make space on stack */
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" movl %ebx, 4(%ecx)\n" /* fn arg */
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" movl %eax, 0(%ecx)\n" /* fn */
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/* get other args to clone */
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" movl 8+"FSZ"(%esp), %ebx\n" /* syscall arg1: flags */
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" movl 20+"FSZ"(%esp), %edx\n" /* syscall arg3: parent tid * */
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" movl 16+"FSZ"(%esp), %edi\n" /* syscall arg5: child tid * */
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" movl 24+"FSZ"(%esp), %esi\n" /* syscall arg4: tls_ptr * */
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" movl $"__NR_CLONE", %eax\n"
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" int $0x80\n" /* clone() */
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" testl %eax, %eax\n" /* child if retval == 0 */
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" jnz 1f\n"
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/* CHILD - call thread function */
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" popl %eax\n"
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" call *%eax\n" /* call fn */
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/* exit with result */
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" movl %eax, %ebx\n" /* arg1: return value from fn */
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" movl $"__NR_EXIT", %eax\n"
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" int $0x80\n"
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/* Hm, exit returned */
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" ud2\n"
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"1:\n" /* PARENT or ERROR */
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" pop %esi\n"
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" pop %edi\n"
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" pop %ebx\n"
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" ret\n"
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".previous\n"
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);
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#undef FSZ
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#undef __NR_CLONE
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#undef __NR_EXIT
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// forward declarations
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static void setup_child ( ThreadArchState*, ThreadArchState*, Bool );
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static SysRes sys_set_thread_area ( ThreadId, vki_modify_ldt_t* );
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/*
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When a client clones, we need to keep track of the new thread. This means:
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1. allocate a ThreadId+ThreadState+stack for the the thread
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2. initialize the thread's new VCPU state
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3. create the thread using the same args as the client requested,
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but using the scheduler entrypoint for EIP, and a separate stack
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for ESP.
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*/
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static SysRes do_clone ( ThreadId ptid,
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UInt flags, Addr esp,
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Int* parent_tidptr,
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Int* child_tidptr,
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vki_modify_ldt_t *tlsinfo)
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{
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static const Bool debug = False;
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ThreadId ctid = VG_(alloc_ThreadState)();
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ThreadState* ptst = VG_(get_ThreadState)(ptid);
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ThreadState* ctst = VG_(get_ThreadState)(ctid);
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UWord* stack;
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NSegment const* seg;
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SysRes res;
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Int eax;
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vki_sigset_t blockall, savedmask;
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VG_(sigfillset)(&blockall);
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vg_assert(VG_(is_running_thread)(ptid));
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vg_assert(VG_(is_valid_tid)(ctid));
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stack = (UWord*)ML_(allocstack)(ctid);
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if (stack == NULL) {
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res = VG_(mk_SysRes_Error)( VKI_ENOMEM );
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goto out;
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}
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/* Copy register state
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Both parent and child return to the same place, and the code
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following the clone syscall works out which is which, so we
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don't need to worry about it.
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The parent gets the child's new tid returned from clone, but the
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child gets 0.
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If the clone call specifies a NULL esp for the new thread, then
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it actually gets a copy of the parent's esp.
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*/
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/* Note: the clone call done by the Quadrics Elan3 driver specifies
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clone flags of 0xF00, and it seems to rely on the assumption
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that the child inherits a copy of the parent's GDT.
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setup_child takes care of setting that up. */
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setup_child( &ctst->arch, &ptst->arch, True );
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/* Make sys_clone appear to have returned Success(0) in the
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child. */
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ctst->arch.vex.guest_EAX = 0;
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if (esp != 0)
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ctst->arch.vex.guest_ESP = esp;
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ctst->os_state.parent = ptid;
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/* inherit signal mask */
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ctst->sig_mask = ptst->sig_mask;
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ctst->tmp_sig_mask = ptst->sig_mask;
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/* We don't really know where the client stack is, because its
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allocated by the client. The best we can do is look at the
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memory mappings and try to derive some useful information. We
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assume that esp starts near its highest possible value, and can
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only go down to the start of the mmaped segment. */
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seg = VG_(am_find_nsegment)((Addr)esp);
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if (seg && seg->kind != SkResvn) {
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ctst->client_stack_highest_word = (Addr)VG_PGROUNDUP(esp);
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ctst->client_stack_szB = ctst->client_stack_highest_word - seg->start;
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VG_(register_stack)(seg->start, ctst->client_stack_highest_word);
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if (debug)
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VG_(printf)("tid %d: guessed client stack range %#lx-%#lx\n",
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ctid, seg->start, VG_PGROUNDUP(esp));
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} else {
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VG_(message)(Vg_UserMsg, "!? New thread %d starts with ESP(%#lx) unmapped\n",
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ctid, esp);
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ctst->client_stack_szB = 0;
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}
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/* Assume the clone will succeed, and tell any tool that wants to
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know that this thread has come into existence. We cannot defer
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it beyond this point because sys_set_thread_area, just below,
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causes tCheck to assert by making references to the new ThreadId
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if we don't state the new thread exists prior to that point.
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If the clone fails, we'll send out a ll_exit notification for it
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at the out: label below, to clean up. */
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VG_TRACK ( pre_thread_ll_create, ptid, ctid );
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if (flags & VKI_CLONE_SETTLS) {
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if (debug)
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VG_(printf)("clone child has SETTLS: tls info at %p: idx=%d "
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"base=%#lx limit=%x; esp=%#x fs=%x gs=%x\n",
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tlsinfo, tlsinfo->entry_number,
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tlsinfo->base_addr, tlsinfo->limit,
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ptst->arch.vex.guest_ESP,
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ctst->arch.vex.guest_FS, ctst->arch.vex.guest_GS);
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res = sys_set_thread_area(ctid, tlsinfo);
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if (sr_isError(res))
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goto out;
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}
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flags &= ~VKI_CLONE_SETTLS;
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/* start the thread with everything blocked */
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VG_(sigprocmask)(VKI_SIG_SETMASK, &blockall, &savedmask);
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/* Create the new thread */
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eax = do_syscall_clone_x86_linux(
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ML_(start_thread_NORETURN), stack, flags, &VG_(threads)[ctid],
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child_tidptr, parent_tidptr, NULL
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);
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res = VG_(mk_SysRes_x86_linux)( eax );
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VG_(sigprocmask)(VKI_SIG_SETMASK, &savedmask, NULL);
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out:
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if (sr_isError(res)) {
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/* clone failed */
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VG_(cleanup_thread)(&ctst->arch);
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ctst->status = VgTs_Empty;
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/* oops. Better tell the tool the thread exited in a hurry :-) */
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VG_TRACK( pre_thread_ll_exit, ctid );
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}
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return res;
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}
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|
|
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/* ---------------------------------------------------------------------
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LDT/GDT simulation
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|
------------------------------------------------------------------ */
|
|
|
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/* Details of the LDT simulation
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|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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When a program runs natively, the linux kernel allows each *thread*
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in it to have its own LDT. Almost all programs never do this --
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it's wildly unportable, after all -- and so the kernel never
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|
allocates the structure, which is just as well as an LDT occupies
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64k of memory (8192 entries of size 8 bytes).
|
|
|
|
A thread may choose to modify its LDT entries, by doing the
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__NR_modify_ldt syscall. In such a situation the kernel will then
|
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allocate an LDT structure for it. Each LDT entry is basically a
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(base, limit) pair. A virtual address in a specific segment is
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translated to a linear address by adding the segment's base value.
|
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In addition, the virtual address must not exceed the limit value.
|
|
|
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To use an LDT entry, a thread loads one of the segment registers
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(%cs, %ss, %ds, %es, %fs, %gs) with the index of the LDT entry (0
|
|
.. 8191) it wants to use. In fact, the required value is (index <<
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3) + 7, but that's not important right now. Any normal instruction
|
|
which includes an addressing mode can then be made relative to that
|
|
LDT entry by prefixing the insn with a so-called segment-override
|
|
prefix, a byte which indicates which of the 6 segment registers
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|
holds the LDT index.
|
|
|
|
Now, a key constraint is that valgrind's address checks operate in
|
|
terms of linear addresses. So we have to explicitly translate
|
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virtual addrs into linear addrs, and that means doing a complete
|
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LDT simulation.
|
|
|
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Calls to modify_ldt are intercepted. For each thread, we maintain
|
|
an LDT (with the same normally-never-allocated optimisation that
|
|
the kernel does). This is updated as expected via calls to
|
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modify_ldt.
|
|
|
|
When a thread does an amode calculation involving a segment
|
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override prefix, the relevant LDT entry for the thread is
|
|
consulted. It all works.
|
|
|
|
There is a conceptual problem, which appears when switching back to
|
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native execution, either temporarily to pass syscalls to the
|
|
kernel, or permanently, when debugging V. Problem at such points
|
|
is that it's pretty pointless to copy the simulated machine's
|
|
segment registers to the real machine, because we'd also need to
|
|
copy the simulated LDT into the real one, and that's prohibitively
|
|
expensive.
|
|
|
|
Fortunately it looks like no syscalls rely on the segment regs or
|
|
LDT being correct, so we can get away with it. Apart from that the
|
|
simulation is pretty straightforward. All 6 segment registers are
|
|
tracked, although only %ds, %es, %fs and %gs are allowed as
|
|
prefixes. Perhaps it could be restricted even more than that -- I
|
|
am not sure what is and isn't allowed in user-mode.
|
|
*/
|
|
|
|
/* Translate a struct modify_ldt_ldt_s to a VexGuestX86SegDescr, using
|
|
the Linux kernel's logic (cut-n-paste of code in
|
|
linux/kernel/ldt.c). */
|
|
|
|
static
|
|
void translate_to_hw_format ( /* IN */ vki_modify_ldt_t* inn,
|
|
/* OUT */ VexGuestX86SegDescr* out,
|
|
Int oldmode )
|
|
{
|
|
UInt entry_1, entry_2;
|
|
vg_assert(8 == sizeof(VexGuestX86SegDescr));
|
|
|
|
if (0)
|
|
VG_(printf)("translate_to_hw_format: base %#lx, limit %d\n",
|
|
inn->base_addr, inn->limit );
|
|
|
|
/* Allow LDTs to be cleared by the user. */
|
|
if (inn->base_addr == 0 && inn->limit == 0) {
|
|
if (oldmode ||
|
|
(inn->contents == 0 &&
|
|
inn->read_exec_only == 1 &&
|
|
inn->seg_32bit == 0 &&
|
|
inn->limit_in_pages == 0 &&
|
|
inn->seg_not_present == 1 &&
|
|
inn->useable == 0 )) {
|
|
entry_1 = 0;
|
|
entry_2 = 0;
|
|
goto install;
|
|
}
|
|
}
|
|
|
|
entry_1 = ((inn->base_addr & 0x0000ffff) << 16) |
|
|
(inn->limit & 0x0ffff);
|
|
entry_2 = (inn->base_addr & 0xff000000) |
|
|
((inn->base_addr & 0x00ff0000) >> 16) |
|
|
(inn->limit & 0xf0000) |
|
|
((inn->read_exec_only ^ 1) << 9) |
|
|
(inn->contents << 10) |
|
|
((inn->seg_not_present ^ 1) << 15) |
|
|
(inn->seg_32bit << 22) |
|
|
(inn->limit_in_pages << 23) |
|
|
0x7000;
|
|
if (!oldmode)
|
|
entry_2 |= (inn->useable << 20);
|
|
|
|
/* Install the new entry ... */
|
|
install:
|
|
out->LdtEnt.Words.word1 = entry_1;
|
|
out->LdtEnt.Words.word2 = entry_2;
|
|
}
|
|
|
|
/* Create a zeroed-out GDT. */
|
|
static VexGuestX86SegDescr* alloc_zeroed_x86_GDT ( void )
|
|
{
|
|
Int nbytes = VEX_GUEST_X86_GDT_NENT * sizeof(VexGuestX86SegDescr);
|
|
return VG_(arena_calloc)(VG_AR_CORE, "di.syswrap-x86.azxG.1", nbytes, 1);
|
|
}
|
|
|
|
/* Create a zeroed-out LDT. */
|
|
static VexGuestX86SegDescr* alloc_zeroed_x86_LDT ( void )
|
|
{
|
|
Int nbytes = VEX_GUEST_X86_LDT_NENT * sizeof(VexGuestX86SegDescr);
|
|
return VG_(arena_calloc)(VG_AR_CORE, "di.syswrap-x86.azxL.1", nbytes, 1);
|
|
}
|
|
|
|
/* Free up an LDT or GDT allocated by the above fns. */
|
|
static void free_LDT_or_GDT ( VexGuestX86SegDescr* dt )
|
|
{
|
|
vg_assert(dt);
|
|
VG_(arena_free)(VG_AR_CORE, (void*)dt);
|
|
}
|
|
|
|
/* Copy contents between two existing LDTs. */
|
|
static void copy_LDT_from_to ( VexGuestX86SegDescr* src,
|
|
VexGuestX86SegDescr* dst )
|
|
{
|
|
Int i;
|
|
vg_assert(src);
|
|
vg_assert(dst);
|
|
for (i = 0; i < VEX_GUEST_X86_LDT_NENT; i++)
|
|
dst[i] = src[i];
|
|
}
|
|
|
|
/* Copy contents between two existing GDTs. */
|
|
static void copy_GDT_from_to ( VexGuestX86SegDescr* src,
|
|
VexGuestX86SegDescr* dst )
|
|
{
|
|
Int i;
|
|
vg_assert(src);
|
|
vg_assert(dst);
|
|
for (i = 0; i < VEX_GUEST_X86_GDT_NENT; i++)
|
|
dst[i] = src[i];
|
|
}
|
|
|
|
/* Free this thread's DTs, if it has any. */
|
|
static void deallocate_LGDTs_for_thread ( VexGuestX86State* vex )
|
|
{
|
|
vg_assert(sizeof(HWord) == sizeof(void*));
|
|
|
|
if (0)
|
|
VG_(printf)("deallocate_LGDTs_for_thread: "
|
|
"ldt = 0x%lx, gdt = 0x%lx\n",
|
|
vex->guest_LDT, vex->guest_GDT );
|
|
|
|
if (vex->guest_LDT != (HWord)NULL) {
|
|
free_LDT_or_GDT( (VexGuestX86SegDescr*)vex->guest_LDT );
|
|
vex->guest_LDT = (HWord)NULL;
|
|
}
|
|
|
|
if (vex->guest_GDT != (HWord)NULL) {
|
|
free_LDT_or_GDT( (VexGuestX86SegDescr*)vex->guest_GDT );
|
|
vex->guest_GDT = (HWord)NULL;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* linux/kernel/ldt.c
|
|
*
|
|
* Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
|
|
* Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
|
|
*/
|
|
|
|
/*
|
|
* read_ldt() is not really atomic - this is not a problem since
|
|
* synchronization of reads and writes done to the LDT has to be
|
|
* assured by user-space anyway. Writes are atomic, to protect
|
|
* the security checks done on new descriptors.
|
|
*/
|
|
static
|
|
SysRes read_ldt ( ThreadId tid, UChar* ptr, UInt bytecount )
|
|
{
|
|
SysRes res;
|
|
UInt i, size;
|
|
UChar* ldt;
|
|
|
|
if (0)
|
|
VG_(printf)("read_ldt: tid = %d, ptr = %p, bytecount = %d\n",
|
|
tid, ptr, bytecount );
|
|
|
|
vg_assert(sizeof(HWord) == sizeof(VexGuestX86SegDescr*));
|
|
vg_assert(8 == sizeof(VexGuestX86SegDescr));
|
|
|
|
ldt = (Char*)(VG_(threads)[tid].arch.vex.guest_LDT);
|
|
res = VG_(mk_SysRes_Success)( 0 );
|
|
if (ldt == NULL)
|
|
/* LDT not allocated, meaning all entries are null */
|
|
goto out;
|
|
|
|
size = VEX_GUEST_X86_LDT_NENT * sizeof(VexGuestX86SegDescr);
|
|
if (size > bytecount)
|
|
size = bytecount;
|
|
|
|
res = VG_(mk_SysRes_Success)( size );
|
|
for (i = 0; i < size; i++)
|
|
ptr[i] = ldt[i];
|
|
|
|
out:
|
|
return res;
|
|
}
|
|
|
|
|
|
static
|
|
SysRes write_ldt ( ThreadId tid, void* ptr, UInt bytecount, Int oldmode )
|
|
{
|
|
SysRes res;
|
|
VexGuestX86SegDescr* ldt;
|
|
vki_modify_ldt_t* ldt_info;
|
|
|
|
if (0)
|
|
VG_(printf)("write_ldt: tid = %d, ptr = %p, "
|
|
"bytecount = %d, oldmode = %d\n",
|
|
tid, ptr, bytecount, oldmode );
|
|
|
|
vg_assert(8 == sizeof(VexGuestX86SegDescr));
|
|
vg_assert(sizeof(HWord) == sizeof(VexGuestX86SegDescr*));
|
|
|
|
ldt = (VexGuestX86SegDescr*)VG_(threads)[tid].arch.vex.guest_LDT;
|
|
ldt_info = (vki_modify_ldt_t*)ptr;
|
|
|
|
res = VG_(mk_SysRes_Error)( VKI_EINVAL );
|
|
if (bytecount != sizeof(vki_modify_ldt_t))
|
|
goto out;
|
|
|
|
res = VG_(mk_SysRes_Error)( VKI_EINVAL );
|
|
if (ldt_info->entry_number >= VEX_GUEST_X86_LDT_NENT)
|
|
goto out;
|
|
if (ldt_info->contents == 3) {
|
|
if (oldmode)
|
|
goto out;
|
|
if (ldt_info->seg_not_present == 0)
|
|
goto out;
|
|
}
|
|
|
|
/* If this thread doesn't have an LDT, we'd better allocate it
|
|
now. */
|
|
if (ldt == (HWord)NULL) {
|
|
ldt = alloc_zeroed_x86_LDT();
|
|
VG_(threads)[tid].arch.vex.guest_LDT = (HWord)ldt;
|
|
}
|
|
|
|
/* Install the new entry ... */
|
|
translate_to_hw_format ( ldt_info, &ldt[ldt_info->entry_number], oldmode );
|
|
res = VG_(mk_SysRes_Success)( 0 );
|
|
|
|
out:
|
|
return res;
|
|
}
|
|
|
|
|
|
static SysRes sys_modify_ldt ( ThreadId tid,
|
|
Int func, void* ptr, UInt bytecount )
|
|
{
|
|
SysRes ret = VG_(mk_SysRes_Error)( VKI_ENOSYS );
|
|
|
|
switch (func) {
|
|
case 0:
|
|
ret = read_ldt(tid, ptr, bytecount);
|
|
break;
|
|
case 1:
|
|
ret = write_ldt(tid, ptr, bytecount, 1);
|
|
break;
|
|
case 2:
|
|
VG_(unimplemented)("sys_modify_ldt: func == 2");
|
|
/* god knows what this is about */
|
|
/* ret = read_default_ldt(ptr, bytecount); */
|
|
/*UNREACHED*/
|
|
break;
|
|
case 0x11:
|
|
ret = write_ldt(tid, ptr, bytecount, 0);
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
static SysRes sys_set_thread_area ( ThreadId tid, vki_modify_ldt_t* info )
|
|
{
|
|
Int idx;
|
|
VexGuestX86SegDescr* gdt;
|
|
|
|
vg_assert(8 == sizeof(VexGuestX86SegDescr));
|
|
vg_assert(sizeof(HWord) == sizeof(VexGuestX86SegDescr*));
|
|
|
|
if (info == NULL)
|
|
return VG_(mk_SysRes_Error)( VKI_EFAULT );
|
|
|
|
gdt = (VexGuestX86SegDescr*)VG_(threads)[tid].arch.vex.guest_GDT;
|
|
|
|
/* If the thread doesn't have a GDT, allocate it now. */
|
|
if (!gdt) {
|
|
gdt = alloc_zeroed_x86_GDT();
|
|
VG_(threads)[tid].arch.vex.guest_GDT = (HWord)gdt;
|
|
}
|
|
|
|
idx = info->entry_number;
|
|
|
|
if (idx == -1) {
|
|
/* Find and use the first free entry. Don't allocate entry
|
|
zero, because the hardware will never do that, and apparently
|
|
doing so confuses some code (perhaps stuff running on
|
|
Wine). */
|
|
for (idx = 1; idx < VEX_GUEST_X86_GDT_NENT; idx++) {
|
|
if (gdt[idx].LdtEnt.Words.word1 == 0
|
|
&& gdt[idx].LdtEnt.Words.word2 == 0)
|
|
break;
|
|
}
|
|
|
|
if (idx == VEX_GUEST_X86_GDT_NENT)
|
|
return VG_(mk_SysRes_Error)( VKI_ESRCH );
|
|
} else if (idx < 0 || idx == 0 || idx >= VEX_GUEST_X86_GDT_NENT) {
|
|
/* Similarly, reject attempts to use GDT[0]. */
|
|
return VG_(mk_SysRes_Error)( VKI_EINVAL );
|
|
}
|
|
|
|
translate_to_hw_format(info, &gdt[idx], 0);
|
|
|
|
VG_TRACK( pre_mem_write, Vg_CoreSysCall, tid,
|
|
"set_thread_area(info->entry)",
|
|
(Addr) & info->entry_number, sizeof(unsigned int) );
|
|
info->entry_number = idx;
|
|
VG_TRACK( post_mem_write, Vg_CoreSysCall, tid,
|
|
(Addr) & info->entry_number, sizeof(unsigned int) );
|
|
|
|
return VG_(mk_SysRes_Success)( 0 );
|
|
}
|
|
|
|
|
|
static SysRes sys_get_thread_area ( ThreadId tid, vki_modify_ldt_t* info )
|
|
{
|
|
Int idx;
|
|
VexGuestX86SegDescr* gdt;
|
|
|
|
vg_assert(sizeof(HWord) == sizeof(VexGuestX86SegDescr*));
|
|
vg_assert(8 == sizeof(VexGuestX86SegDescr));
|
|
|
|
if (info == NULL)
|
|
return VG_(mk_SysRes_Error)( VKI_EFAULT );
|
|
|
|
idx = info->entry_number;
|
|
|
|
if (idx < 0 || idx >= VEX_GUEST_X86_GDT_NENT)
|
|
return VG_(mk_SysRes_Error)( VKI_EINVAL );
|
|
|
|
gdt = (VexGuestX86SegDescr*)VG_(threads)[tid].arch.vex.guest_GDT;
|
|
|
|
/* If the thread doesn't have a GDT, allocate it now. */
|
|
if (!gdt) {
|
|
gdt = alloc_zeroed_x86_GDT();
|
|
VG_(threads)[tid].arch.vex.guest_GDT = (HWord)gdt;
|
|
}
|
|
|
|
info->base_addr = ( gdt[idx].LdtEnt.Bits.BaseHi << 24 ) |
|
|
( gdt[idx].LdtEnt.Bits.BaseMid << 16 ) |
|
|
gdt[idx].LdtEnt.Bits.BaseLow;
|
|
info->limit = ( gdt[idx].LdtEnt.Bits.LimitHi << 16 ) |
|
|
gdt[idx].LdtEnt.Bits.LimitLow;
|
|
info->seg_32bit = gdt[idx].LdtEnt.Bits.Default_Big;
|
|
info->contents = ( gdt[idx].LdtEnt.Bits.Type >> 2 ) & 0x3;
|
|
info->read_exec_only = ( gdt[idx].LdtEnt.Bits.Type & 0x1 ) ^ 0x1;
|
|
info->limit_in_pages = gdt[idx].LdtEnt.Bits.Granularity;
|
|
info->seg_not_present = gdt[idx].LdtEnt.Bits.Pres ^ 0x1;
|
|
info->useable = gdt[idx].LdtEnt.Bits.Sys;
|
|
info->reserved = 0;
|
|
|
|
return VG_(mk_SysRes_Success)( 0 );
|
|
}
|
|
|
|
/* ---------------------------------------------------------------------
|
|
More thread stuff
|
|
------------------------------------------------------------------ */
|
|
|
|
void VG_(cleanup_thread) ( ThreadArchState* arch )
|
|
{
|
|
/* Release arch-specific resources held by this thread. */
|
|
/* On x86, we have to dump the LDT and GDT. */
|
|
deallocate_LGDTs_for_thread( &arch->vex );
|
|
}
|
|
|
|
|
|
static void setup_child ( /*OUT*/ ThreadArchState *child,
|
|
/*IN*/ ThreadArchState *parent,
|
|
Bool inherit_parents_GDT )
|
|
{
|
|
/* We inherit our parent's guest state. */
|
|
child->vex = parent->vex;
|
|
child->vex_shadow1 = parent->vex_shadow1;
|
|
child->vex_shadow2 = parent->vex_shadow2;
|
|
|
|
/* We inherit our parent's LDT. */
|
|
if (parent->vex.guest_LDT == (HWord)NULL) {
|
|
/* We hope this is the common case. */
|
|
child->vex.guest_LDT = (HWord)NULL;
|
|
} else {
|
|
/* No luck .. we have to take a copy of the parent's. */
|
|
child->vex.guest_LDT = (HWord)alloc_zeroed_x86_LDT();
|
|
copy_LDT_from_to( (VexGuestX86SegDescr*)parent->vex.guest_LDT,
|
|
(VexGuestX86SegDescr*)child->vex.guest_LDT );
|
|
}
|
|
|
|
/* Either we start with an empty GDT (the usual case) or inherit a
|
|
copy of our parents' one (Quadrics Elan3 driver -style clone
|
|
only). */
|
|
child->vex.guest_GDT = (HWord)NULL;
|
|
|
|
if (inherit_parents_GDT && parent->vex.guest_GDT != (HWord)NULL) {
|
|
child->vex.guest_GDT = (HWord)alloc_zeroed_x86_GDT();
|
|
copy_GDT_from_to( (VexGuestX86SegDescr*)parent->vex.guest_GDT,
|
|
(VexGuestX86SegDescr*)child->vex.guest_GDT );
|
|
}
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------
|
|
PRE/POST wrappers for x86/Linux-specific syscalls
|
|
------------------------------------------------------------------ */
|
|
|
|
#define PRE(name) DEFN_PRE_TEMPLATE(x86_linux, name)
|
|
#define POST(name) DEFN_POST_TEMPLATE(x86_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(x86_linux, sys_socketcall);
|
|
DECL_TEMPLATE(x86_linux, sys_stat64);
|
|
DECL_TEMPLATE(x86_linux, sys_fstatat64);
|
|
DECL_TEMPLATE(x86_linux, sys_fstat64);
|
|
DECL_TEMPLATE(x86_linux, sys_lstat64);
|
|
DECL_TEMPLATE(x86_linux, sys_clone);
|
|
DECL_TEMPLATE(x86_linux, old_mmap);
|
|
DECL_TEMPLATE(x86_linux, sys_mmap2);
|
|
DECL_TEMPLATE(x86_linux, sys_sigreturn);
|
|
DECL_TEMPLATE(x86_linux, sys_ipc);
|
|
DECL_TEMPLATE(x86_linux, sys_rt_sigreturn);
|
|
DECL_TEMPLATE(x86_linux, sys_modify_ldt);
|
|
DECL_TEMPLATE(x86_linux, sys_set_thread_area);
|
|
DECL_TEMPLATE(x86_linux, sys_get_thread_area);
|
|
DECL_TEMPLATE(x86_linux, sys_ptrace);
|
|
DECL_TEMPLATE(x86_linux, sys_sigaction);
|
|
DECL_TEMPLATE(x86_linux, sys_sigsuspend);
|
|
DECL_TEMPLATE(x86_linux, old_select);
|
|
DECL_TEMPLATE(x86_linux, sys_vm86old);
|
|
DECL_TEMPLATE(x86_linux, sys_vm86);
|
|
DECL_TEMPLATE(x86_linux, sys_syscall223);
|
|
|
|
PRE(old_select)
|
|
{
|
|
/* struct sel_arg_struct {
|
|
unsigned long n;
|
|
fd_set *inp, *outp, *exp;
|
|
struct timeval *tvp;
|
|
};
|
|
*/
|
|
PRE_REG_READ1(long, "old_select", struct sel_arg_struct *, args);
|
|
PRE_MEM_READ( "old_select(args)", ARG1, 5*sizeof(UWord) );
|
|
*flags |= SfMayBlock;
|
|
{
|
|
UInt* arg_struct = (UInt*)ARG1;
|
|
UInt a1, a2, a3, a4, a5;
|
|
|
|
a1 = arg_struct[0];
|
|
a2 = arg_struct[1];
|
|
a3 = arg_struct[2];
|
|
a4 = arg_struct[3];
|
|
a5 = arg_struct[4];
|
|
|
|
PRINT("old_select ( %d, %#x, %#x, %#x, %#x )", a1,a2,a3,a4,a5);
|
|
if (a2 != (Addr)NULL)
|
|
PRE_MEM_READ( "old_select(readfds)", a2, a1/8 /* __FD_SETSIZE/8 */ );
|
|
if (a3 != (Addr)NULL)
|
|
PRE_MEM_READ( "old_select(writefds)", a3, a1/8 /* __FD_SETSIZE/8 */ );
|
|
if (a4 != (Addr)NULL)
|
|
PRE_MEM_READ( "old_select(exceptfds)", a4, a1/8 /* __FD_SETSIZE/8 */ );
|
|
if (a5 != (Addr)NULL)
|
|
PRE_MEM_READ( "old_select(timeout)", a5, sizeof(struct vki_timeval) );
|
|
}
|
|
}
|
|
|
|
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,
|
|
vki_modify_ldt_t *, tlsinfo,
|
|
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;
|
|
}
|
|
}
|
|
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;
|
|
}
|
|
}
|
|
if (ARG1 & VKI_CLONE_SETTLS) {
|
|
PRE_MEM_READ("clone(tls_user_desc)", ARG4, sizeof(vki_modify_ldt_t));
|
|
if (!VG_(am_is_valid_for_client)(ARG4, sizeof(vki_modify_ldt_t),
|
|
VKI_PROT_READ)) {
|
|
SET_STATUS_Failure( VKI_EFAULT );
|
|
return;
|
|
}
|
|
}
|
|
|
|
cloneflags = ARG1;
|
|
|
|
if (!ML_(client_signal_OK)(ARG1 & VKI_CSIGNAL)) {
|
|
SET_STATUS_Failure( VKI_EINVAL );
|
|
return;
|
|
}
|
|
|
|
/* Be ultra-paranoid and filter out any clone-variants we don't understand:
|
|
- ??? specifies clone flags of 0x100011
|
|
- ??? specifies clone flags of 0x1200011.
|
|
- NPTL specifies clone flags of 0x7D0F00.
|
|
- The Quadrics Elan3 driver specifies clone flags of 0xF00.
|
|
- Newer Quadrics Elan3 drivers with NTPL support specify 0x410F00.
|
|
Everything else is rejected.
|
|
*/
|
|
if (
|
|
1 ||
|
|
/* 11 Nov 05: for the time being, disable this ultra-paranoia.
|
|
The switch below probably does a good enough job. */
|
|
(cloneflags == 0x100011 || cloneflags == 0x1200011
|
|
|| cloneflags == 0x7D0F00
|
|
|| cloneflags == 0x790F00
|
|
|| cloneflags == 0x3D0F00
|
|
|| cloneflags == 0x410F00
|
|
|| cloneflags == 0xF00
|
|
|| cloneflags == 0xF21)) {
|
|
/* OK */
|
|
}
|
|
else {
|
|
/* Nah. We don't like it. Go away. */
|
|
goto reject;
|
|
}
|
|
|
|
/* Only look at the flags we really care about */
|
|
switch (cloneflags & (VKI_CLONE_VM | VKI_CLONE_FS
|
|
| VKI_CLONE_FILES | VKI_CLONE_VFORK)) {
|
|
case VKI_CLONE_VM | VKI_CLONE_FS | VKI_CLONE_FILES:
|
|
/* thread creation */
|
|
SET_STATUS_from_SysRes(
|
|
do_clone(tid,
|
|
ARG1, /* flags */
|
|
(Addr)ARG2, /* child ESP */
|
|
(Int *)ARG3, /* parent_tidptr */
|
|
(Int *)ARG5, /* child_tidptr */
|
|
(vki_modify_ldt_t *)ARG4)); /* set_tls */
|
|
break;
|
|
|
|
case VKI_CLONE_VFORK | VKI_CLONE_VM: /* vfork */
|
|
/* FALLTHROUGH - assume vfork == fork */
|
|
cloneflags &= ~(VKI_CLONE_VFORK | VKI_CLONE_VM);
|
|
|
|
case 0: /* plain fork */
|
|
SET_STATUS_from_SysRes(
|
|
ML_(do_fork_clone)(tid,
|
|
cloneflags, /* flags */
|
|
(Int *)ARG3, /* parent_tidptr */
|
|
(Int *)ARG5)); /* child_tidptr */
|
|
break;
|
|
|
|
default:
|
|
reject:
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
PRE(sys_sigreturn)
|
|
{
|
|
/* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-linux.c for
|
|
an explanation of what follows. */
|
|
|
|
ThreadState* tst;
|
|
PRINT("sys_sigreturn ( )");
|
|
|
|
vg_assert(VG_(is_valid_tid)(tid));
|
|
vg_assert(tid >= 1 && tid < VG_N_THREADS);
|
|
vg_assert(VG_(is_running_thread)(tid));
|
|
|
|
/* Adjust esp to point to start of frame; skip back up over
|
|
sigreturn sequence's "popl %eax" and handler ret addr */
|
|
tst = VG_(get_ThreadState)(tid);
|
|
tst->arch.vex.guest_ESP -= sizeof(Addr)+sizeof(Word);
|
|
/* XXX why does ESP change differ from rt_sigreturn case below? */
|
|
|
|
/* This is only so that the EIP 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, False);
|
|
|
|
/* 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_rt_sigreturn)
|
|
{
|
|
/* See comments on PRE(sys_rt_sigreturn) in syswrap-amd64-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));
|
|
|
|
/* Adjust esp to point to start of frame; skip back up over handler
|
|
ret addr */
|
|
tst = VG_(get_ThreadState)(tid);
|
|
tst->arch.vex.guest_ESP -= sizeof(Addr);
|
|
/* XXX why does ESP change differ from sigreturn case above? */
|
|
|
|
/* This is only so that the EIP 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_modify_ldt)
|
|
{
|
|
PRINT("sys_modify_ldt ( %ld, %#lx, %ld )", ARG1,ARG2,ARG3);
|
|
PRE_REG_READ3(int, "modify_ldt", int, func, void *, ptr,
|
|
unsigned long, bytecount);
|
|
|
|
if (ARG1 == 0) {
|
|
/* read the LDT into ptr */
|
|
PRE_MEM_WRITE( "modify_ldt(ptr)", ARG2, ARG3 );
|
|
}
|
|
if (ARG1 == 1 || ARG1 == 0x11) {
|
|
/* write the LDT with the entry pointed at by ptr */
|
|
PRE_MEM_READ( "modify_ldt(ptr)", ARG2, sizeof(vki_modify_ldt_t) );
|
|
}
|
|
/* "do" the syscall ourselves; the kernel never sees it */
|
|
SET_STATUS_from_SysRes( sys_modify_ldt( tid, ARG1, (void*)ARG2, ARG3 ) );
|
|
|
|
if (ARG1 == 0 && SUCCESS && RES > 0) {
|
|
POST_MEM_WRITE( ARG2, RES );
|
|
}
|
|
}
|
|
|
|
PRE(sys_set_thread_area)
|
|
{
|
|
PRINT("sys_set_thread_area ( %#lx )", ARG1);
|
|
PRE_REG_READ1(int, "set_thread_area", struct user_desc *, u_info)
|
|
PRE_MEM_READ( "set_thread_area(u_info)", ARG1, sizeof(vki_modify_ldt_t) );
|
|
|
|
/* "do" the syscall ourselves; the kernel never sees it */
|
|
SET_STATUS_from_SysRes( sys_set_thread_area( tid, (void *)ARG1 ) );
|
|
}
|
|
|
|
PRE(sys_get_thread_area)
|
|
{
|
|
PRINT("sys_get_thread_area ( %#lx )", ARG1);
|
|
PRE_REG_READ1(int, "get_thread_area", struct user_desc *, u_info)
|
|
PRE_MEM_WRITE( "get_thread_area(u_info)", ARG1, sizeof(vki_modify_ldt_t) );
|
|
|
|
/* "do" the syscall ourselves; the kernel never sees it */
|
|
SET_STATUS_from_SysRes( sys_get_thread_area( tid, (void *)ARG1 ) );
|
|
|
|
if (SUCCESS) {
|
|
POST_MEM_WRITE( ARG1, sizeof(vki_modify_ldt_t) );
|
|
}
|
|
}
|
|
|
|
// Parts of this are x86-specific, but the *PEEK* cases are generic.
|
|
//
|
|
// ARG3 is only used for pointers into the traced process's address
|
|
// space and for offsets into the traced process's struct
|
|
// user_regs_struct. It is never a pointer into this process's memory
|
|
// space, and we should therefore not check anything it points to.
|
|
PRE(sys_ptrace)
|
|
{
|
|
PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", 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_GETREGS:
|
|
PRE_MEM_WRITE( "ptrace(getregs)", ARG4,
|
|
sizeof (struct vki_user_regs_struct));
|
|
break;
|
|
case VKI_PTRACE_GETFPREGS:
|
|
PRE_MEM_WRITE( "ptrace(getfpregs)", ARG4,
|
|
sizeof (struct vki_user_i387_struct));
|
|
break;
|
|
case VKI_PTRACE_GETFPXREGS:
|
|
PRE_MEM_WRITE( "ptrace(getfpxregs)", ARG4,
|
|
sizeof(struct vki_user_fxsr_struct) );
|
|
break;
|
|
case VKI_PTRACE_SETREGS:
|
|
PRE_MEM_READ( "ptrace(setregs)", ARG4,
|
|
sizeof (struct vki_user_regs_struct));
|
|
break;
|
|
case VKI_PTRACE_SETFPREGS:
|
|
PRE_MEM_READ( "ptrace(setfpregs)", ARG4,
|
|
sizeof (struct vki_user_i387_struct));
|
|
break;
|
|
case VKI_PTRACE_SETFPXREGS:
|
|
PRE_MEM_READ( "ptrace(setfpxregs)", ARG4,
|
|
sizeof(struct vki_user_fxsr_struct) );
|
|
break;
|
|
case VKI_PTRACE_GETEVENTMSG:
|
|
PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
|
|
break;
|
|
case VKI_PTRACE_GETSIGINFO:
|
|
PRE_MEM_WRITE( "ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
|
|
break;
|
|
case VKI_PTRACE_SETSIGINFO:
|
|
PRE_MEM_READ( "ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
POST(sys_ptrace)
|
|
{
|
|
switch (ARG1) {
|
|
case VKI_PTRACE_PEEKTEXT:
|
|
case VKI_PTRACE_PEEKDATA:
|
|
case VKI_PTRACE_PEEKUSR:
|
|
POST_MEM_WRITE( ARG4, sizeof (long));
|
|
break;
|
|
case VKI_PTRACE_GETREGS:
|
|
POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct));
|
|
break;
|
|
case VKI_PTRACE_GETFPREGS:
|
|
POST_MEM_WRITE( ARG4, sizeof (struct vki_user_i387_struct));
|
|
break;
|
|
case VKI_PTRACE_GETFPXREGS:
|
|
POST_MEM_WRITE( ARG4, sizeof(struct vki_user_fxsr_struct) );
|
|
break;
|
|
case VKI_PTRACE_GETEVENTMSG:
|
|
POST_MEM_WRITE( ARG4, sizeof(unsigned long));
|
|
break;
|
|
case VKI_PTRACE_GETSIGINFO:
|
|
/* XXX: This is a simplification. Different parts of the
|
|
* siginfo_t are valid depending on the type of signal.
|
|
*/
|
|
POST_MEM_WRITE( ARG4, sizeof(vki_siginfo_t));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static Addr deref_Addr ( ThreadId tid, Addr a, Char* s )
|
|
{
|
|
Addr* a_p = (Addr*)a;
|
|
PRE_MEM_READ( s, (Addr)a_p, sizeof(Addr) );
|
|
return *a_p;
|
|
}
|
|
|
|
PRE(sys_ipc)
|
|
{
|
|
PRINT("sys_ipc ( %ld, %ld, %ld, %ld, %#lx, %ld )", ARG1,ARG2,ARG3,ARG4,ARG5,ARG6);
|
|
// XXX: this is simplistic -- some args are not used in all circumstances.
|
|
PRE_REG_READ6(int, "ipc",
|
|
vki_uint, call, int, first, int, second, int, third,
|
|
void *, ptr, long, fifth)
|
|
|
|
switch (ARG1 /* call */) {
|
|
case VKI_SEMOP:
|
|
ML_(generic_PRE_sys_semop)( tid, ARG2, ARG5, ARG3 );
|
|
*flags |= SfMayBlock;
|
|
break;
|
|
case VKI_SEMGET:
|
|
break;
|
|
case VKI_SEMCTL:
|
|
{
|
|
UWord arg = deref_Addr( tid, ARG5, "semctl(arg)" );
|
|
ML_(generic_PRE_sys_semctl)( tid, ARG2, ARG3, ARG4, arg );
|
|
break;
|
|
}
|
|
case VKI_SEMTIMEDOP:
|
|
ML_(generic_PRE_sys_semtimedop)( tid, ARG2, ARG5, ARG3, ARG6 );
|
|
*flags |= SfMayBlock;
|
|
break;
|
|
case VKI_MSGSND:
|
|
ML_(linux_PRE_sys_msgsnd)( tid, ARG2, ARG5, ARG3, ARG4 );
|
|
if ((ARG4 & VKI_IPC_NOWAIT) == 0)
|
|
*flags |= SfMayBlock;
|
|
break;
|
|
case VKI_MSGRCV:
|
|
{
|
|
Addr msgp;
|
|
Word msgtyp;
|
|
|
|
msgp = deref_Addr( tid,
|
|
(Addr) (&((struct vki_ipc_kludge *)ARG5)->msgp),
|
|
"msgrcv(msgp)" );
|
|
msgtyp = deref_Addr( tid,
|
|
(Addr) (&((struct vki_ipc_kludge *)ARG5)->msgtyp),
|
|
"msgrcv(msgp)" );
|
|
|
|
ML_(linux_PRE_sys_msgrcv)( tid, ARG2, msgp, ARG3, msgtyp, ARG4 );
|
|
|
|
if ((ARG4 & VKI_IPC_NOWAIT) == 0)
|
|
*flags |= SfMayBlock;
|
|
break;
|
|
}
|
|
case VKI_MSGGET:
|
|
break;
|
|
case VKI_MSGCTL:
|
|
ML_(linux_PRE_sys_msgctl)( tid, ARG2, ARG3, ARG5 );
|
|
break;
|
|
case VKI_SHMAT:
|
|
{
|
|
UWord w;
|
|
PRE_MEM_WRITE( "shmat(raddr)", ARG4, sizeof(Addr) );
|
|
w = ML_(generic_PRE_sys_shmat)( tid, ARG2, ARG5, ARG3 );
|
|
if (w == 0)
|
|
SET_STATUS_Failure( VKI_EINVAL );
|
|
else
|
|
ARG5 = w;
|
|
break;
|
|
}
|
|
case VKI_SHMDT:
|
|
if (!ML_(generic_PRE_sys_shmdt)(tid, ARG5))
|
|
SET_STATUS_Failure( VKI_EINVAL );
|
|
break;
|
|
case VKI_SHMGET:
|
|
break;
|
|
case VKI_SHMCTL: /* IPCOP_shmctl */
|
|
ML_(generic_PRE_sys_shmctl)( tid, ARG2, ARG3, ARG5 );
|
|
break;
|
|
default:
|
|
VG_(message)(Vg_DebugMsg, "FATAL: unhandled syscall(ipc) %ld", ARG1 );
|
|
VG_(core_panic)("... bye!\n");
|
|
break; /*NOTREACHED*/
|
|
}
|
|
}
|
|
|
|
POST(sys_ipc)
|
|
{
|
|
vg_assert(SUCCESS);
|
|
switch (ARG1 /* call */) {
|
|
case VKI_SEMOP:
|
|
case VKI_SEMGET:
|
|
break;
|
|
case VKI_SEMCTL:
|
|
{
|
|
UWord arg = deref_Addr( tid, ARG5, "semctl(arg)" );
|
|
ML_(generic_PRE_sys_semctl)( tid, ARG2, ARG3, ARG4, arg );
|
|
break;
|
|
}
|
|
case VKI_SEMTIMEDOP:
|
|
case VKI_MSGSND:
|
|
break;
|
|
case VKI_MSGRCV:
|
|
{
|
|
Addr msgp;
|
|
Word msgtyp;
|
|
|
|
msgp = deref_Addr( tid,
|
|
(Addr) (&((struct vki_ipc_kludge *)ARG5)->msgp),
|
|
"msgrcv(msgp)" );
|
|
msgtyp = deref_Addr( tid,
|
|
(Addr) (&((struct vki_ipc_kludge *)ARG5)->msgtyp),
|
|
"msgrcv(msgp)" );
|
|
|
|
ML_(linux_POST_sys_msgrcv)( tid, RES, ARG2, msgp, ARG3, msgtyp, ARG4 );
|
|
break;
|
|
}
|
|
case VKI_MSGGET:
|
|
break;
|
|
case VKI_MSGCTL:
|
|
ML_(linux_POST_sys_msgctl)( tid, RES, ARG2, ARG3, ARG5 );
|
|
break;
|
|
case VKI_SHMAT:
|
|
{
|
|
Addr addr;
|
|
|
|
/* force readability. before the syscall it is
|
|
* indeed uninitialized, as can be seen in
|
|
* glibc/sysdeps/unix/sysv/linux/shmat.c */
|
|
POST_MEM_WRITE( ARG4, sizeof( Addr ) );
|
|
|
|
addr = deref_Addr ( tid, ARG4, "shmat(addr)" );
|
|
ML_(generic_POST_sys_shmat)( tid, addr, ARG2, ARG5, ARG3 );
|
|
break;
|
|
}
|
|
case VKI_SHMDT:
|
|
ML_(generic_POST_sys_shmdt)( tid, RES, ARG5 );
|
|
break;
|
|
case VKI_SHMGET:
|
|
break;
|
|
case VKI_SHMCTL:
|
|
ML_(generic_POST_sys_shmctl)( tid, RES, ARG2, ARG3, ARG5 );
|
|
break;
|
|
default:
|
|
VG_(message)(Vg_DebugMsg,
|
|
"FATAL: unhandled syscall(ipc) %ld",
|
|
ARG1 );
|
|
VG_(core_panic)("... bye!\n");
|
|
break; /*NOTREACHED*/
|
|
}
|
|
}
|
|
|
|
PRE(old_mmap)
|
|
{
|
|
/* struct mmap_arg_struct {
|
|
unsigned long addr;
|
|
unsigned long len;
|
|
unsigned long prot;
|
|
unsigned long flags;
|
|
unsigned long fd;
|
|
unsigned long offset;
|
|
}; */
|
|
UWord a1, a2, a3, a4, a5, a6;
|
|
SysRes r;
|
|
|
|
UWord* args = (UWord*)ARG1;
|
|
PRE_REG_READ1(long, "old_mmap", struct mmap_arg_struct *, args);
|
|
PRE_MEM_READ( "old_mmap(args)", (Addr)args, 6*sizeof(UWord) );
|
|
|
|
a1 = args[1-1];
|
|
a2 = args[2-1];
|
|
a3 = args[3-1];
|
|
a4 = args[4-1];
|
|
a5 = args[5-1];
|
|
a6 = args[6-1];
|
|
|
|
PRINT("old_mmap ( %#lx, %llu, %ld, %ld, %ld, %ld )",
|
|
a1, (ULong)a2, a3, a4, a5, a6 );
|
|
|
|
r = ML_(generic_PRE_sys_mmap)( tid, a1, a2, a3, a4, a5, (Off64T)a6 );
|
|
SET_STATUS_from_SysRes(r);
|
|
}
|
|
|
|
PRE(sys_mmap2)
|
|
{
|
|
SysRes r;
|
|
|
|
// Exactly like old_mmap() except:
|
|
// - all 6 args are passed in regs, rather than in a memory-block.
|
|
// - the file offset is specified in pagesize units rather than bytes,
|
|
// so that it can be used for files bigger than 2^32 bytes.
|
|
// pagesize or 4K-size units in offset? For ppc32/64-linux, this is
|
|
// 4K-sized. Assert that the page size is 4K here for safety.
|
|
vg_assert(VKI_PAGE_SIZE == 4096);
|
|
PRINT("sys_mmap2 ( %#lx, %llu, %ld, %ld, %ld, %ld )",
|
|
ARG1, (ULong)ARG2, ARG3, ARG4, ARG5, ARG6 );
|
|
PRE_REG_READ6(long, "mmap2",
|
|
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,
|
|
4096 * (Off64T)ARG6 );
|
|
SET_STATUS_from_SysRes(r);
|
|
}
|
|
|
|
// XXX: lstat64/fstat64/stat64 are generic, but not necessarily
|
|
// applicable to every architecture -- I think only to 32-bit archs.
|
|
// We're going to need something like linux/core_os32.h for such
|
|
// things, eventually, I think. --njn
|
|
PRE(sys_lstat64)
|
|
{
|
|
PRINT("sys_lstat64 ( %#lx(%s), %#lx )",ARG1,(char*)ARG1,ARG2);
|
|
PRE_REG_READ2(long, "lstat64", char *, file_name, struct stat64 *, buf);
|
|
PRE_MEM_RASCIIZ( "lstat64(file_name)", ARG1 );
|
|
PRE_MEM_WRITE( "lstat64(buf)", ARG2, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
POST(sys_lstat64)
|
|
{
|
|
vg_assert(SUCCESS);
|
|
if (RES == 0) {
|
|
POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
|
|
}
|
|
}
|
|
|
|
PRE(sys_stat64)
|
|
{
|
|
PRINT("sys_stat64 ( %#lx(%s), %#lx )",ARG1,(char*)ARG1,ARG2);
|
|
PRE_REG_READ2(long, "stat64", char *, file_name, struct stat64 *, buf);
|
|
PRE_MEM_RASCIIZ( "stat64(file_name)", ARG1 );
|
|
PRE_MEM_WRITE( "stat64(buf)", ARG2, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
POST(sys_stat64)
|
|
{
|
|
POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
PRE(sys_fstatat64)
|
|
{
|
|
PRINT("sys_fstatat64 ( %ld, %#lx(%s), %#lx )",ARG1,ARG2,(char*)ARG2,ARG3);
|
|
PRE_REG_READ3(long, "fstatat64",
|
|
int, dfd, char *, file_name, struct stat64 *, buf);
|
|
PRE_MEM_RASCIIZ( "fstatat64(file_name)", ARG2 );
|
|
PRE_MEM_WRITE( "fstatat64(buf)", ARG3, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
POST(sys_fstatat64)
|
|
{
|
|
POST_MEM_WRITE( ARG3, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
PRE(sys_fstat64)
|
|
{
|
|
PRINT("sys_fstat64 ( %ld, %#lx )",ARG1,ARG2);
|
|
PRE_REG_READ2(long, "fstat64", unsigned long, fd, struct stat64 *, buf);
|
|
PRE_MEM_WRITE( "fstat64(buf)", ARG2, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
POST(sys_fstat64)
|
|
{
|
|
POST_MEM_WRITE( ARG2, sizeof(struct vki_stat64) );
|
|
}
|
|
|
|
PRE(sys_socketcall)
|
|
{
|
|
# define ARG2_0 (((UWord*)ARG2)[0])
|
|
# define ARG2_1 (((UWord*)ARG2)[1])
|
|
# define ARG2_2 (((UWord*)ARG2)[2])
|
|
# define ARG2_3 (((UWord*)ARG2)[3])
|
|
# define ARG2_4 (((UWord*)ARG2)[4])
|
|
# define ARG2_5 (((UWord*)ARG2)[5])
|
|
|
|
*flags |= SfMayBlock;
|
|
PRINT("sys_socketcall ( %ld, %#lx )",ARG1,ARG2);
|
|
PRE_REG_READ2(long, "socketcall", int, call, unsigned long *, args);
|
|
|
|
switch (ARG1 /* request */) {
|
|
|
|
case VKI_SYS_SOCKETPAIR:
|
|
/* int socketpair(int d, int type, int protocol, int sv[2]); */
|
|
PRE_MEM_READ( "socketcall.socketpair(args)", ARG2, 4*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_socketpair)( tid, ARG2_0, ARG2_1, ARG2_2, ARG2_3 );
|
|
break;
|
|
|
|
case VKI_SYS_SOCKET:
|
|
/* int socket(int domain, int type, int protocol); */
|
|
PRE_MEM_READ( "socketcall.socket(args)", ARG2, 3*sizeof(Addr) );
|
|
break;
|
|
|
|
case VKI_SYS_BIND:
|
|
/* int bind(int sockfd, struct sockaddr *my_addr,
|
|
int addrlen); */
|
|
PRE_MEM_READ( "socketcall.bind(args)", ARG2, 3*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_bind)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_LISTEN:
|
|
/* int listen(int s, int backlog); */
|
|
PRE_MEM_READ( "socketcall.listen(args)", ARG2, 2*sizeof(Addr) );
|
|
break;
|
|
|
|
case VKI_SYS_ACCEPT: {
|
|
/* int accept(int s, struct sockaddr *addr, int *addrlen); */
|
|
PRE_MEM_READ( "socketcall.accept(args)", ARG2, 3*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_accept)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
}
|
|
|
|
case VKI_SYS_SENDTO:
|
|
/* int sendto(int s, const void *msg, int len,
|
|
unsigned int flags,
|
|
const struct sockaddr *to, int tolen); */
|
|
PRE_MEM_READ( "socketcall.sendto(args)", ARG2, 6*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_sendto)( tid, ARG2_0, ARG2_1, ARG2_2,
|
|
ARG2_3, ARG2_4, ARG2_5 );
|
|
break;
|
|
|
|
case VKI_SYS_SEND:
|
|
/* int send(int s, const void *msg, size_t len, int flags); */
|
|
PRE_MEM_READ( "socketcall.send(args)", ARG2, 4*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_send)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_RECVFROM:
|
|
/* int recvfrom(int s, void *buf, int len, unsigned int flags,
|
|
struct sockaddr *from, int *fromlen); */
|
|
PRE_MEM_READ( "socketcall.recvfrom(args)", ARG2, 6*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_recvfrom)( tid, ARG2_0, ARG2_1, ARG2_2,
|
|
ARG2_3, ARG2_4, ARG2_5 );
|
|
break;
|
|
|
|
case VKI_SYS_RECV:
|
|
/* int recv(int s, void *buf, int len, unsigned int flags); */
|
|
/* man 2 recv says:
|
|
The recv call is normally used only on a connected socket
|
|
(see connect(2)) and is identical to recvfrom with a NULL
|
|
from parameter.
|
|
*/
|
|
PRE_MEM_READ( "socketcall.recv(args)", ARG2, 4*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_recv)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_CONNECT:
|
|
/* int connect(int sockfd,
|
|
struct sockaddr *serv_addr, int addrlen ); */
|
|
PRE_MEM_READ( "socketcall.connect(args)", ARG2, 3*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_connect)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_SETSOCKOPT:
|
|
/* int setsockopt(int s, int level, int optname,
|
|
const void *optval, int optlen); */
|
|
PRE_MEM_READ( "socketcall.setsockopt(args)", ARG2, 5*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_setsockopt)( tid, ARG2_0, ARG2_1, ARG2_2,
|
|
ARG2_3, ARG2_4 );
|
|
break;
|
|
|
|
case VKI_SYS_GETSOCKOPT:
|
|
/* int getsockopt(int s, int level, int optname,
|
|
void *optval, socklen_t *optlen); */
|
|
PRE_MEM_READ( "socketcall.getsockopt(args)", ARG2, 5*sizeof(Addr) );
|
|
ML_(linux_PRE_sys_getsockopt)( tid, ARG2_0, ARG2_1, ARG2_2,
|
|
ARG2_3, ARG2_4 );
|
|
break;
|
|
|
|
case VKI_SYS_GETSOCKNAME:
|
|
/* int getsockname(int s, struct sockaddr* name, int* namelen) */
|
|
PRE_MEM_READ( "socketcall.getsockname(args)", ARG2, 3*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_getsockname)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_GETPEERNAME:
|
|
/* int getpeername(int s, struct sockaddr* name, int* namelen) */
|
|
PRE_MEM_READ( "socketcall.getpeername(args)", ARG2, 3*sizeof(Addr) );
|
|
ML_(generic_PRE_sys_getpeername)( tid, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_SHUTDOWN:
|
|
/* int shutdown(int s, int how); */
|
|
PRE_MEM_READ( "socketcall.shutdown(args)", ARG2, 2*sizeof(Addr) );
|
|
break;
|
|
|
|
case VKI_SYS_SENDMSG: {
|
|
/* int sendmsg(int s, const struct msghdr *msg, int flags); */
|
|
|
|
/* this causes warnings, and I don't get why. glibc bug?
|
|
* (after all it's glibc providing the arguments array)
|
|
PRE_MEM_READ( "socketcall.sendmsg(args)", ARG2, 3*sizeof(Addr) );
|
|
*/
|
|
ML_(generic_PRE_sys_sendmsg)( tid, ARG2_0, ARG2_1 );
|
|
break;
|
|
}
|
|
|
|
case VKI_SYS_RECVMSG: {
|
|
/* int recvmsg(int s, struct msghdr *msg, int flags); */
|
|
|
|
/* this causes warnings, and I don't get why. glibc bug?
|
|
* (after all it's glibc providing the arguments array)
|
|
PRE_MEM_READ("socketcall.recvmsg(args)", ARG2, 3*sizeof(Addr) );
|
|
*/
|
|
ML_(generic_PRE_sys_recvmsg)( tid, ARG2_0, ARG2_1 );
|
|
break;
|
|
}
|
|
|
|
default:
|
|
VG_(message)(Vg_DebugMsg,"Warning: unhandled socketcall 0x%lx",ARG1);
|
|
SET_STATUS_Failure( VKI_EINVAL );
|
|
break;
|
|
}
|
|
# undef ARG2_0
|
|
# undef ARG2_1
|
|
# undef ARG2_2
|
|
# undef ARG2_3
|
|
# undef ARG2_4
|
|
# undef ARG2_5
|
|
}
|
|
|
|
POST(sys_socketcall)
|
|
{
|
|
# define ARG2_0 (((UWord*)ARG2)[0])
|
|
# define ARG2_1 (((UWord*)ARG2)[1])
|
|
# define ARG2_2 (((UWord*)ARG2)[2])
|
|
# define ARG2_3 (((UWord*)ARG2)[3])
|
|
# define ARG2_4 (((UWord*)ARG2)[4])
|
|
# define ARG2_5 (((UWord*)ARG2)[5])
|
|
|
|
SysRes r;
|
|
vg_assert(SUCCESS);
|
|
switch (ARG1 /* request */) {
|
|
|
|
case VKI_SYS_SOCKETPAIR:
|
|
r = ML_(generic_POST_sys_socketpair)(
|
|
tid, VG_(mk_SysRes_Success)(RES),
|
|
ARG2_0, ARG2_1, ARG2_2, ARG2_3
|
|
);
|
|
SET_STATUS_from_SysRes(r);
|
|
break;
|
|
|
|
case VKI_SYS_SOCKET:
|
|
r = ML_(generic_POST_sys_socket)( tid, VG_(mk_SysRes_Success)(RES) );
|
|
SET_STATUS_from_SysRes(r);
|
|
break;
|
|
|
|
case VKI_SYS_BIND:
|
|
/* int bind(int sockfd, struct sockaddr *my_addr,
|
|
int addrlen); */
|
|
break;
|
|
|
|
case VKI_SYS_LISTEN:
|
|
/* int listen(int s, int backlog); */
|
|
break;
|
|
|
|
case VKI_SYS_ACCEPT:
|
|
/* int accept(int s, struct sockaddr *addr, int *addrlen); */
|
|
r = ML_(generic_POST_sys_accept)( tid, VG_(mk_SysRes_Success)(RES),
|
|
ARG2_0, ARG2_1, ARG2_2 );
|
|
SET_STATUS_from_SysRes(r);
|
|
break;
|
|
|
|
case VKI_SYS_SENDTO:
|
|
break;
|
|
|
|
case VKI_SYS_SEND:
|
|
break;
|
|
|
|
case VKI_SYS_RECVFROM:
|
|
ML_(generic_POST_sys_recvfrom)( tid, VG_(mk_SysRes_Success)(RES),
|
|
ARG2_0, ARG2_1, ARG2_2,
|
|
ARG2_3, ARG2_4, ARG2_5 );
|
|
break;
|
|
|
|
case VKI_SYS_RECV:
|
|
ML_(generic_POST_sys_recv)( tid, RES, ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_CONNECT:
|
|
break;
|
|
|
|
case VKI_SYS_SETSOCKOPT:
|
|
break;
|
|
|
|
case VKI_SYS_GETSOCKOPT:
|
|
ML_(linux_POST_sys_getsockopt)( tid, VG_(mk_SysRes_Success)(RES),
|
|
ARG2_0, ARG2_1,
|
|
ARG2_2, ARG2_3, ARG2_4 );
|
|
break;
|
|
|
|
case VKI_SYS_GETSOCKNAME:
|
|
ML_(generic_POST_sys_getsockname)( tid, VG_(mk_SysRes_Success)(RES),
|
|
ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_GETPEERNAME:
|
|
ML_(generic_POST_sys_getpeername)( tid, VG_(mk_SysRes_Success)(RES),
|
|
ARG2_0, ARG2_1, ARG2_2 );
|
|
break;
|
|
|
|
case VKI_SYS_SHUTDOWN:
|
|
break;
|
|
|
|
case VKI_SYS_SENDMSG:
|
|
break;
|
|
|
|
case VKI_SYS_RECVMSG:
|
|
ML_(generic_POST_sys_recvmsg)( tid, ARG2_0, ARG2_1 );
|
|
break;
|
|
|
|
default:
|
|
VG_(message)(Vg_DebugMsg,"FATAL: unhandled socketcall 0x%lx",ARG1);
|
|
VG_(core_panic)("... bye!\n");
|
|
break; /*NOTREACHED*/
|
|
}
|
|
# undef ARG2_0
|
|
# undef ARG2_1
|
|
# undef ARG2_2
|
|
# undef ARG2_3
|
|
# undef ARG2_4
|
|
# undef ARG2_5
|
|
}
|
|
|
|
/* Convert from non-RT to RT sigset_t's */
|
|
static
|
|
void convert_sigset_to_rt(const vki_old_sigset_t *oldset, vki_sigset_t *set)
|
|
{
|
|
VG_(sigemptyset)(set);
|
|
set->sig[0] = *oldset;
|
|
}
|
|
PRE(sys_sigaction)
|
|
{
|
|
vki_sigaction_toK_t new, *newp;
|
|
vki_sigaction_fromK_t old, *oldp;
|
|
|
|
PRINT("sys_sigaction ( %ld, %#lx, %#lx )", ARG1,ARG2,ARG3);
|
|
PRE_REG_READ3(int, "sigaction",
|
|
int, signum, const struct old_sigaction *, act,
|
|
struct old_sigaction *, oldact);
|
|
|
|
newp = oldp = NULL;
|
|
|
|
if (ARG2 != 0) {
|
|
struct vki_old_sigaction *sa = (struct vki_old_sigaction *)ARG2;
|
|
PRE_MEM_READ( "sigaction(act->sa_handler)", (Addr)&sa->ksa_handler, sizeof(sa->ksa_handler));
|
|
PRE_MEM_READ( "sigaction(act->sa_mask)", (Addr)&sa->sa_mask, sizeof(sa->sa_mask));
|
|
PRE_MEM_READ( "sigaction(act->sa_flags)", (Addr)&sa->sa_flags, sizeof(sa->sa_flags));
|
|
if (ML_(safe_to_deref)(sa,sizeof(sa))
|
|
&& (sa->sa_flags & VKI_SA_RESTORER))
|
|
PRE_MEM_READ( "sigaction(act->sa_restorer)", (Addr)&sa->sa_restorer, sizeof(sa->sa_restorer));
|
|
}
|
|
|
|
if (ARG3 != 0) {
|
|
PRE_MEM_WRITE( "sigaction(oldact)", ARG3, sizeof(struct vki_old_sigaction));
|
|
oldp = &old;
|
|
}
|
|
|
|
//jrs 20050207: what?! how can this make any sense?
|
|
//if (VG_(is_kerror)(SYSRES))
|
|
// return;
|
|
|
|
if (ARG2 != 0) {
|
|
struct vki_old_sigaction *oldnew = (struct vki_old_sigaction *)ARG2;
|
|
new.ksa_handler = oldnew->ksa_handler;
|
|
new.sa_flags = oldnew->sa_flags;
|
|
new.sa_restorer = oldnew->sa_restorer;
|
|
convert_sigset_to_rt(&oldnew->sa_mask, &new.sa_mask);
|
|
newp = &new;
|
|
}
|
|
|
|
SET_STATUS_from_SysRes( VG_(do_sys_sigaction)(ARG1, newp, oldp) );
|
|
|
|
if (ARG3 != 0 && SUCCESS && RES == 0) {
|
|
struct vki_old_sigaction *oldold = (struct vki_old_sigaction *)ARG3;
|
|
oldold->ksa_handler = oldp->ksa_handler;
|
|
oldold->sa_flags = oldp->sa_flags;
|
|
oldold->sa_restorer = oldp->sa_restorer;
|
|
oldold->sa_mask = oldp->sa_mask.sig[0];
|
|
}
|
|
}
|
|
|
|
POST(sys_sigaction)
|
|
{
|
|
vg_assert(SUCCESS);
|
|
if (RES == 0 && ARG3 != 0)
|
|
POST_MEM_WRITE( ARG3, sizeof(struct vki_old_sigaction));
|
|
}
|
|
|
|
PRE(sys_sigsuspend)
|
|
{
|
|
/* The C library interface to sigsuspend just takes a pointer to
|
|
a signal mask but this system call has three arguments - the first
|
|
two don't appear to be used by the kernel and are always passed as
|
|
zero by glibc and the third is the first word of the signal mask
|
|
so only 32 signals are supported.
|
|
|
|
In fact glibc normally uses rt_sigsuspend if it is available as
|
|
that takes a pointer to the signal mask so supports more signals.
|
|
*/
|
|
*flags |= SfMayBlock;
|
|
PRINT("sys_sigsuspend ( %ld, %ld, %ld )", ARG1,ARG2,ARG3 );
|
|
PRE_REG_READ3(int, "sigsuspend",
|
|
int, history0, int, history1,
|
|
vki_old_sigset_t, mask);
|
|
}
|
|
|
|
PRE(sys_vm86old)
|
|
{
|
|
PRINT("sys_vm86old ( %#lx )", ARG1);
|
|
PRE_REG_READ1(int, "vm86old", struct vm86_struct *, info);
|
|
PRE_MEM_WRITE( "vm86old(info)", ARG1, sizeof(struct vki_vm86_struct));
|
|
}
|
|
|
|
POST(sys_vm86old)
|
|
{
|
|
POST_MEM_WRITE( ARG1, sizeof(struct vki_vm86_struct));
|
|
}
|
|
|
|
PRE(sys_vm86)
|
|
{
|
|
PRINT("sys_vm86 ( %ld, %#lx )", ARG1,ARG2);
|
|
PRE_REG_READ2(int, "vm86", unsigned long, fn, struct vm86plus_struct *, v86);
|
|
if (ARG1 == VKI_VM86_ENTER || ARG1 == VKI_VM86_ENTER_NO_BYPASS)
|
|
PRE_MEM_WRITE( "vm86(v86)", ARG2, sizeof(struct vki_vm86plus_struct));
|
|
}
|
|
|
|
POST(sys_vm86)
|
|
{
|
|
if (ARG1 == VKI_VM86_ENTER || ARG1 == VKI_VM86_ENTER_NO_BYPASS)
|
|
POST_MEM_WRITE( ARG2, sizeof(struct vki_vm86plus_struct));
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------
|
|
PRE/POST wrappers for x86/Linux-variant specific syscalls
|
|
------------------------------------------------------------ */
|
|
|
|
PRE(sys_syscall223)
|
|
{
|
|
Int err;
|
|
|
|
/* 223 is used by sys_bproc. If we're not on a declared bproc
|
|
variant, fail in the usual way. */
|
|
|
|
if (!VG_(strstr)(VG_(clo_kernel_variant), "bproc")) {
|
|
PRINT("non-existent syscall! (syscall 223)");
|
|
PRE_REG_READ0(long, "ni_syscall(223)");
|
|
SET_STATUS_Failure( VKI_ENOSYS );
|
|
return;
|
|
}
|
|
|
|
err = ML_(linux_variant_PRE_sys_bproc)( ARG1, ARG2, ARG3,
|
|
ARG4, ARG5, ARG6 );
|
|
if (err) {
|
|
SET_STATUS_Failure( err );
|
|
return;
|
|
}
|
|
/* Let it go through. */
|
|
*flags |= SfMayBlock; /* who knows? play safe. */
|
|
}
|
|
|
|
POST(sys_syscall223)
|
|
{
|
|
ML_(linux_variant_POST_sys_bproc)( ARG1, ARG2, ARG3,
|
|
ARG4, ARG5, ARG6 );
|
|
}
|
|
|
|
#undef PRE
|
|
#undef POST
|
|
|
|
|
|
/* ---------------------------------------------------------------------
|
|
The x86/Linux syscall table
|
|
------------------------------------------------------------------ */
|
|
|
|
/* Add an x86-linux specific wrapper to a syscall table. */
|
|
#define PLAX_(sysno, name) WRAPPER_ENTRY_X_(x86_linux, sysno, name)
|
|
#define PLAXY(sysno, name) WRAPPER_ENTRY_XY(x86_linux, sysno, name)
|
|
|
|
|
|
// This table maps from __NR_xxx syscall numbers (from
|
|
// linux/include/asm-i386/unistd.h) to the appropriate PRE/POST sys_foo()
|
|
// wrappers on x86 (as per sys_call_table in linux/arch/i386/kernel/entry.S).
|
|
//
|
|
// For those syscalls not handled by Valgrind, the annotation indicate its
|
|
// arch/OS combination, eg. */* (generic), */Linux (Linux only), ?/?
|
|
// (unknown).
|
|
|
|
const SyscallTableEntry ML_(syscall_table)[] = {
|
|
//zz // (restart_syscall) // 0
|
|
GENX_(__NR_exit, sys_exit), // 1
|
|
GENX_(__NR_fork, sys_fork), // 2
|
|
GENXY(__NR_read, sys_read), // 3
|
|
GENX_(__NR_write, sys_write), // 4
|
|
|
|
GENXY(__NR_open, sys_open), // 5
|
|
GENXY(__NR_close, sys_close), // 6
|
|
GENXY(__NR_waitpid, sys_waitpid), // 7
|
|
GENXY(__NR_creat, sys_creat), // 8
|
|
GENX_(__NR_link, sys_link), // 9
|
|
|
|
GENX_(__NR_unlink, sys_unlink), // 10
|
|
GENX_(__NR_execve, sys_execve), // 11
|
|
GENX_(__NR_chdir, sys_chdir), // 12
|
|
GENXY(__NR_time, sys_time), // 13
|
|
GENX_(__NR_mknod, sys_mknod), // 14
|
|
|
|
GENX_(__NR_chmod, sys_chmod), // 15
|
|
//zz LINX_(__NR_lchown, sys_lchown16), // 16
|
|
GENX_(__NR_break, sys_ni_syscall), // 17
|
|
//zz // (__NR_oldstat, sys_stat), // 18 (obsolete)
|
|
LINX_(__NR_lseek, sys_lseek), // 19
|
|
|
|
GENX_(__NR_getpid, sys_getpid), // 20
|
|
LINX_(__NR_mount, sys_mount), // 21
|
|
LINX_(__NR_umount, sys_oldumount), // 22
|
|
LINX_(__NR_setuid, sys_setuid16), // 23 ## P
|
|
LINX_(__NR_getuid, sys_getuid16), // 24 ## P
|
|
|
|
LINX_(__NR_stime, sys_stime), // 25 * (SVr4,SVID,X/OPEN)
|
|
PLAXY(__NR_ptrace, sys_ptrace), // 26
|
|
GENX_(__NR_alarm, sys_alarm), // 27
|
|
//zz // (__NR_oldfstat, sys_fstat), // 28 * L -- obsolete
|
|
GENX_(__NR_pause, sys_pause), // 29
|
|
|
|
LINX_(__NR_utime, sys_utime), // 30
|
|
GENX_(__NR_stty, sys_ni_syscall), // 31
|
|
GENX_(__NR_gtty, sys_ni_syscall), // 32
|
|
GENX_(__NR_access, sys_access), // 33
|
|
GENX_(__NR_nice, sys_nice), // 34
|
|
|
|
GENX_(__NR_ftime, sys_ni_syscall), // 35
|
|
GENX_(__NR_sync, sys_sync), // 36
|
|
GENX_(__NR_kill, sys_kill), // 37
|
|
GENX_(__NR_rename, sys_rename), // 38
|
|
GENX_(__NR_mkdir, sys_mkdir), // 39
|
|
|
|
GENX_(__NR_rmdir, sys_rmdir), // 40
|
|
GENXY(__NR_dup, sys_dup), // 41
|
|
LINXY(__NR_pipe, sys_pipe), // 42
|
|
GENXY(__NR_times, sys_times), // 43
|
|
GENX_(__NR_prof, sys_ni_syscall), // 44
|
|
//zz
|
|
GENX_(__NR_brk, sys_brk), // 45
|
|
LINX_(__NR_setgid, sys_setgid16), // 46
|
|
LINX_(__NR_getgid, sys_getgid16), // 47
|
|
//zz // (__NR_signal, sys_signal), // 48 */* (ANSI C)
|
|
LINX_(__NR_geteuid, sys_geteuid16), // 49
|
|
|
|
LINX_(__NR_getegid, sys_getegid16), // 50
|
|
GENX_(__NR_acct, sys_acct), // 51
|
|
LINX_(__NR_umount2, sys_umount), // 52
|
|
GENX_(__NR_lock, sys_ni_syscall), // 53
|
|
LINXY(__NR_ioctl, sys_ioctl), // 54
|
|
|
|
LINXY(__NR_fcntl, sys_fcntl), // 55
|
|
GENX_(__NR_mpx, sys_ni_syscall), // 56
|
|
GENX_(__NR_setpgid, sys_setpgid), // 57
|
|
GENX_(__NR_ulimit, sys_ni_syscall), // 58
|
|
//zz // (__NR_oldolduname, sys_olduname), // 59 Linux -- obsolete
|
|
//zz
|
|
GENX_(__NR_umask, sys_umask), // 60
|
|
GENX_(__NR_chroot, sys_chroot), // 61
|
|
//zz // (__NR_ustat, sys_ustat) // 62 SVr4 -- deprecated
|
|
GENXY(__NR_dup2, sys_dup2), // 63
|
|
GENX_(__NR_getppid, sys_getppid), // 64
|
|
|
|
GENX_(__NR_getpgrp, sys_getpgrp), // 65
|
|
GENX_(__NR_setsid, sys_setsid), // 66
|
|
PLAXY(__NR_sigaction, sys_sigaction), // 67
|
|
//zz // (__NR_sgetmask, sys_sgetmask), // 68 */* (ANSI C)
|
|
//zz // (__NR_ssetmask, sys_ssetmask), // 69 */* (ANSI C)
|
|
//zz
|
|
LINX_(__NR_setreuid, sys_setreuid16), // 70
|
|
LINX_(__NR_setregid, sys_setregid16), // 71
|
|
PLAX_(__NR_sigsuspend, sys_sigsuspend), // 72
|
|
LINXY(__NR_sigpending, sys_sigpending), // 73
|
|
//zz // (__NR_sethostname, sys_sethostname), // 74 */*
|
|
//zz
|
|
GENX_(__NR_setrlimit, sys_setrlimit), // 75
|
|
GENXY(__NR_getrlimit, sys_old_getrlimit), // 76
|
|
GENXY(__NR_getrusage, sys_getrusage), // 77
|
|
GENXY(__NR_gettimeofday, sys_gettimeofday), // 78
|
|
GENX_(__NR_settimeofday, sys_settimeofday), // 79
|
|
|
|
LINXY(__NR_getgroups, sys_getgroups16), // 80
|
|
LINX_(__NR_setgroups, sys_setgroups16), // 81
|
|
PLAX_(__NR_select, old_select), // 82
|
|
GENX_(__NR_symlink, sys_symlink), // 83
|
|
//zz // (__NR_oldlstat, sys_lstat), // 84 -- obsolete
|
|
//zz
|
|
GENX_(__NR_readlink, sys_readlink), // 85
|
|
//zz // (__NR_uselib, sys_uselib), // 86 */Linux
|
|
//zz // (__NR_swapon, sys_swapon), // 87 */Linux
|
|
//zz // (__NR_reboot, sys_reboot), // 88 */Linux
|
|
//zz // (__NR_readdir, old_readdir), // 89 -- superseded
|
|
//zz
|
|
PLAX_(__NR_mmap, old_mmap), // 90
|
|
GENXY(__NR_munmap, sys_munmap), // 91
|
|
GENX_(__NR_truncate, sys_truncate), // 92
|
|
GENX_(__NR_ftruncate, sys_ftruncate), // 93
|
|
GENX_(__NR_fchmod, sys_fchmod), // 94
|
|
|
|
LINX_(__NR_fchown, sys_fchown16), // 95
|
|
GENX_(__NR_getpriority, sys_getpriority), // 96
|
|
GENX_(__NR_setpriority, sys_setpriority), // 97
|
|
GENX_(__NR_profil, sys_ni_syscall), // 98
|
|
GENXY(__NR_statfs, sys_statfs), // 99
|
|
|
|
GENXY(__NR_fstatfs, sys_fstatfs), // 100
|
|
LINX_(__NR_ioperm, sys_ioperm), // 101
|
|
PLAXY(__NR_socketcall, sys_socketcall), // 102 x86/Linux-only
|
|
LINXY(__NR_syslog, sys_syslog), // 103
|
|
GENXY(__NR_setitimer, sys_setitimer), // 104
|
|
|
|
GENXY(__NR_getitimer, sys_getitimer), // 105
|
|
GENXY(__NR_stat, sys_newstat), // 106
|
|
GENXY(__NR_lstat, sys_newlstat), // 107
|
|
GENXY(__NR_fstat, sys_newfstat), // 108
|
|
//zz // (__NR_olduname, sys_uname), // 109 -- obsolete
|
|
//zz
|
|
GENX_(__NR_iopl, sys_iopl), // 110
|
|
LINX_(__NR_vhangup, sys_vhangup), // 111
|
|
GENX_(__NR_idle, sys_ni_syscall), // 112
|
|
PLAXY(__NR_vm86old, sys_vm86old), // 113 x86/Linux-only
|
|
GENXY(__NR_wait4, sys_wait4), // 114
|
|
//zz
|
|
//zz // (__NR_swapoff, sys_swapoff), // 115 */Linux
|
|
LINXY(__NR_sysinfo, sys_sysinfo), // 116
|
|
PLAXY(__NR_ipc, sys_ipc), // 117
|
|
GENX_(__NR_fsync, sys_fsync), // 118
|
|
PLAX_(__NR_sigreturn, sys_sigreturn), // 119 ?/Linux
|
|
|
|
PLAX_(__NR_clone, sys_clone), // 120
|
|
//zz // (__NR_setdomainname, sys_setdomainname), // 121 */*(?)
|
|
GENXY(__NR_uname, sys_newuname), // 122
|
|
PLAX_(__NR_modify_ldt, sys_modify_ldt), // 123
|
|
//zz LINXY(__NR_adjtimex, sys_adjtimex), // 124
|
|
//zz
|
|
GENXY(__NR_mprotect, sys_mprotect), // 125
|
|
LINXY(__NR_sigprocmask, sys_sigprocmask), // 126
|
|
//zz // Nb: create_module() was removed 2.4-->2.6
|
|
GENX_(__NR_create_module, sys_ni_syscall), // 127
|
|
LINX_(__NR_init_module, sys_init_module), // 128
|
|
LINX_(__NR_delete_module, sys_delete_module), // 129
|
|
//zz
|
|
//zz // Nb: get_kernel_syms() was removed 2.4-->2.6
|
|
GENX_(__NR_get_kernel_syms, sys_ni_syscall), // 130
|
|
LINX_(__NR_quotactl, sys_quotactl), // 131
|
|
GENX_(__NR_getpgid, sys_getpgid), // 132
|
|
GENX_(__NR_fchdir, sys_fchdir), // 133
|
|
//zz // (__NR_bdflush, sys_bdflush), // 134 */Linux
|
|
//zz
|
|
//zz // (__NR_sysfs, sys_sysfs), // 135 SVr4
|
|
LINX_(__NR_personality, sys_personality), // 136
|
|
GENX_(__NR_afs_syscall, sys_ni_syscall), // 137
|
|
LINX_(__NR_setfsuid, sys_setfsuid16), // 138
|
|
LINX_(__NR_setfsgid, sys_setfsgid16), // 139
|
|
|
|
LINXY(__NR__llseek, sys_llseek), // 140
|
|
GENXY(__NR_getdents, sys_getdents), // 141
|
|
GENX_(__NR__newselect, sys_select), // 142
|
|
GENX_(__NR_flock, sys_flock), // 143
|
|
GENX_(__NR_msync, sys_msync), // 144
|
|
|
|
GENXY(__NR_readv, sys_readv), // 145
|
|
GENX_(__NR_writev, sys_writev), // 146
|
|
GENX_(__NR_getsid, sys_getsid), // 147
|
|
GENX_(__NR_fdatasync, sys_fdatasync), // 148
|
|
LINXY(__NR__sysctl, sys_sysctl), // 149
|
|
|
|
GENX_(__NR_mlock, sys_mlock), // 150
|
|
GENX_(__NR_munlock, sys_munlock), // 151
|
|
GENX_(__NR_mlockall, sys_mlockall), // 152
|
|
LINX_(__NR_munlockall, sys_munlockall), // 153
|
|
LINXY(__NR_sched_setparam, sys_sched_setparam), // 154
|
|
|
|
LINXY(__NR_sched_getparam, sys_sched_getparam), // 155
|
|
LINX_(__NR_sched_setscheduler, sys_sched_setscheduler), // 156
|
|
LINX_(__NR_sched_getscheduler, sys_sched_getscheduler), // 157
|
|
LINX_(__NR_sched_yield, sys_sched_yield), // 158
|
|
LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max),// 159
|
|
|
|
LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min),// 160
|
|
//zz //LINX?(__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 161 */*
|
|
GENXY(__NR_nanosleep, sys_nanosleep), // 162
|
|
GENX_(__NR_mremap, sys_mremap), // 163
|
|
LINX_(__NR_setresuid, sys_setresuid16), // 164
|
|
|
|
LINXY(__NR_getresuid, sys_getresuid16), // 165
|
|
PLAXY(__NR_vm86, sys_vm86), // 166 x86/Linux-only
|
|
GENX_(__NR_query_module, sys_ni_syscall), // 167
|
|
GENXY(__NR_poll, sys_poll), // 168
|
|
//zz // (__NR_nfsservctl, sys_nfsservctl), // 169 */Linux
|
|
//zz
|
|
LINX_(__NR_setresgid, sys_setresgid16), // 170
|
|
LINXY(__NR_getresgid, sys_getresgid16), // 171
|
|
LINXY(__NR_prctl, sys_prctl), // 172
|
|
PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 173 x86/Linux only?
|
|
LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 174
|
|
|
|
LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 175
|
|
LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 176
|
|
LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait),// 177
|
|
LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),// 178
|
|
LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 179
|
|
|
|
GENXY(__NR_pread64, sys_pread64), // 180
|
|
GENX_(__NR_pwrite64, sys_pwrite64), // 181
|
|
LINX_(__NR_chown, sys_chown16), // 182
|
|
GENXY(__NR_getcwd, sys_getcwd), // 183
|
|
LINXY(__NR_capget, sys_capget), // 184
|
|
|
|
LINX_(__NR_capset, sys_capset), // 185
|
|
GENXY(__NR_sigaltstack, sys_sigaltstack), // 186
|
|
LINXY(__NR_sendfile, sys_sendfile), // 187
|
|
GENXY(__NR_getpmsg, sys_getpmsg), // 188
|
|
GENX_(__NR_putpmsg, sys_putpmsg), // 189
|
|
|
|
// Nb: we treat vfork as fork
|
|
GENX_(__NR_vfork, sys_fork), // 190
|
|
GENXY(__NR_ugetrlimit, sys_getrlimit), // 191
|
|
PLAX_(__NR_mmap2, sys_mmap2), // 192
|
|
GENX_(__NR_truncate64, sys_truncate64), // 193
|
|
GENX_(__NR_ftruncate64, sys_ftruncate64), // 194
|
|
|
|
PLAXY(__NR_stat64, sys_stat64), // 195
|
|
PLAXY(__NR_lstat64, sys_lstat64), // 196
|
|
PLAXY(__NR_fstat64, sys_fstat64), // 197
|
|
GENX_(__NR_lchown32, sys_lchown), // 198
|
|
GENX_(__NR_getuid32, sys_getuid), // 199
|
|
|
|
GENX_(__NR_getgid32, sys_getgid), // 200
|
|
GENX_(__NR_geteuid32, sys_geteuid), // 201
|
|
GENX_(__NR_getegid32, sys_getegid), // 202
|
|
GENX_(__NR_setreuid32, sys_setreuid), // 203
|
|
GENX_(__NR_setregid32, sys_setregid), // 204
|
|
|
|
GENXY(__NR_getgroups32, sys_getgroups), // 205
|
|
GENX_(__NR_setgroups32, sys_setgroups), // 206
|
|
GENX_(__NR_fchown32, sys_fchown), // 207
|
|
LINX_(__NR_setresuid32, sys_setresuid), // 208
|
|
LINXY(__NR_getresuid32, sys_getresuid), // 209
|
|
|
|
LINX_(__NR_setresgid32, sys_setresgid), // 210
|
|
LINXY(__NR_getresgid32, sys_getresgid), // 211
|
|
GENX_(__NR_chown32, sys_chown), // 212
|
|
GENX_(__NR_setuid32, sys_setuid), // 213
|
|
GENX_(__NR_setgid32, sys_setgid), // 214
|
|
|
|
LINX_(__NR_setfsuid32, sys_setfsuid), // 215
|
|
LINX_(__NR_setfsgid32, sys_setfsgid), // 216
|
|
//zz // (__NR_pivot_root, sys_pivot_root), // 217 */Linux
|
|
GENXY(__NR_mincore, sys_mincore), // 218
|
|
GENX_(__NR_madvise, sys_madvise), // 219
|
|
|
|
GENXY(__NR_getdents64, sys_getdents64), // 220
|
|
LINXY(__NR_fcntl64, sys_fcntl64), // 221
|
|
GENX_(222, sys_ni_syscall), // 222
|
|
PLAXY(223, sys_syscall223), // 223 // sys_bproc?
|
|
LINX_(__NR_gettid, sys_gettid), // 224
|
|
|
|
//zz // (__NR_readahead, sys_readahead), // 225 */(Linux?)
|
|
LINX_(__NR_setxattr, sys_setxattr), // 226
|
|
LINX_(__NR_lsetxattr, sys_lsetxattr), // 227
|
|
LINX_(__NR_fsetxattr, sys_fsetxattr), // 228
|
|
LINXY(__NR_getxattr, sys_getxattr), // 229
|
|
|
|
LINXY(__NR_lgetxattr, sys_lgetxattr), // 230
|
|
LINXY(__NR_fgetxattr, sys_fgetxattr), // 231
|
|
LINXY(__NR_listxattr, sys_listxattr), // 232
|
|
LINXY(__NR_llistxattr, sys_llistxattr), // 233
|
|
LINXY(__NR_flistxattr, sys_flistxattr), // 234
|
|
|
|
LINX_(__NR_removexattr, sys_removexattr), // 235
|
|
LINX_(__NR_lremovexattr, sys_lremovexattr), // 236
|
|
LINX_(__NR_fremovexattr, sys_fremovexattr), // 237
|
|
LINXY(__NR_tkill, sys_tkill), // 238 */Linux
|
|
LINXY(__NR_sendfile64, sys_sendfile64), // 239
|
|
|
|
LINXY(__NR_futex, sys_futex), // 240
|
|
LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 241
|
|
LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 242
|
|
PLAX_(__NR_set_thread_area, sys_set_thread_area), // 243
|
|
PLAX_(__NR_get_thread_area, sys_get_thread_area), // 244
|
|
|
|
LINXY(__NR_io_setup, sys_io_setup), // 245
|
|
LINX_(__NR_io_destroy, sys_io_destroy), // 246
|
|
LINXY(__NR_io_getevents, sys_io_getevents), // 247
|
|
LINX_(__NR_io_submit, sys_io_submit), // 248
|
|
LINXY(__NR_io_cancel, sys_io_cancel), // 249
|
|
|
|
LINX_(__NR_fadvise64, sys_fadvise64), // 250 */(Linux?)
|
|
GENX_(251, sys_ni_syscall), // 251
|
|
LINX_(__NR_exit_group, sys_exit_group), // 252
|
|
LINXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 253
|
|
LINXY(__NR_epoll_create, sys_epoll_create), // 254
|
|
|
|
LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 255
|
|
LINXY(__NR_epoll_wait, sys_epoll_wait), // 256
|
|
//zz // (__NR_remap_file_pages, sys_remap_file_pages), // 257 */Linux
|
|
LINX_(__NR_set_tid_address, sys_set_tid_address), // 258
|
|
LINXY(__NR_timer_create, sys_timer_create), // 259
|
|
|
|
LINXY(__NR_timer_settime, sys_timer_settime), // (timer_create+1)
|
|
LINXY(__NR_timer_gettime, sys_timer_gettime), // (timer_create+2)
|
|
LINX_(__NR_timer_getoverrun, sys_timer_getoverrun),//(timer_create+3)
|
|
LINX_(__NR_timer_delete, sys_timer_delete), // (timer_create+4)
|
|
LINX_(__NR_clock_settime, sys_clock_settime), // (timer_create+5)
|
|
|
|
LINXY(__NR_clock_gettime, sys_clock_gettime), // (timer_create+6)
|
|
LINXY(__NR_clock_getres, sys_clock_getres), // (timer_create+7)
|
|
LINXY(__NR_clock_nanosleep, sys_clock_nanosleep),// (timer_create+8) */*
|
|
GENXY(__NR_statfs64, sys_statfs64), // 268
|
|
GENXY(__NR_fstatfs64, sys_fstatfs64), // 269
|
|
|
|
LINX_(__NR_tgkill, sys_tgkill), // 270 */Linux
|
|
GENX_(__NR_utimes, sys_utimes), // 271
|
|
LINX_(__NR_fadvise64_64, sys_fadvise64_64), // 272 */(Linux?)
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GENX_(__NR_vserver, sys_ni_syscall), // 273
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LINX_(__NR_mbind, sys_mbind), // 274 ?/?
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LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 275 ?/?
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LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 276 ?/?
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LINXY(__NR_mq_open, sys_mq_open), // 277
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LINX_(__NR_mq_unlink, sys_mq_unlink), // (mq_open+1)
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LINX_(__NR_mq_timedsend, sys_mq_timedsend), // (mq_open+2)
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LINXY(__NR_mq_timedreceive, sys_mq_timedreceive),// (mq_open+3)
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LINX_(__NR_mq_notify, sys_mq_notify), // (mq_open+4)
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LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // (mq_open+5)
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GENX_(__NR_sys_kexec_load, sys_ni_syscall), // 283
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LINXY(__NR_waitid, sys_waitid), // 284
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GENX_(285, sys_ni_syscall), // 285
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LINX_(__NR_add_key, sys_add_key), // 286
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LINX_(__NR_request_key, sys_request_key), // 287
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LINXY(__NR_keyctl, sys_keyctl), // 288
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LINX_(__NR_ioprio_set, sys_ioprio_set), // 289
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LINX_(__NR_ioprio_get, sys_ioprio_get), // 290
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LINX_(__NR_inotify_init, sys_inotify_init), // 291
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LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 292
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LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 293
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// LINX_(__NR_migrate_pages, sys_migrate_pages), // 294
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LINXY(__NR_openat, sys_openat), // 295
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LINX_(__NR_mkdirat, sys_mkdirat), // 296
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LINX_(__NR_mknodat, sys_mknodat), // 297
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LINX_(__NR_fchownat, sys_fchownat), // 298
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LINX_(__NR_futimesat, sys_futimesat), // 299
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PLAXY(__NR_fstatat64, sys_fstatat64), // 300
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LINX_(__NR_unlinkat, sys_unlinkat), // 301
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LINX_(__NR_renameat, sys_renameat), // 302
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LINX_(__NR_linkat, sys_linkat), // 303
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LINX_(__NR_symlinkat, sys_symlinkat), // 304
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LINX_(__NR_readlinkat, sys_readlinkat), // 305
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LINX_(__NR_fchmodat, sys_fchmodat), // 306
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|
LINX_(__NR_faccessat, sys_faccessat), // 307
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|
LINX_(__NR_pselect6, sys_pselect6), // 308
|
|
LINXY(__NR_ppoll, sys_ppoll), // 309
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|
|
|
// LINX_(__NR_unshare, sys_unshare), // 310
|
|
LINX_(__NR_set_robust_list, sys_set_robust_list), // 311
|
|
LINXY(__NR_get_robust_list, sys_get_robust_list), // 312
|
|
// LINX_(__NR_splice, sys_ni_syscall), // 313
|
|
LINX_(__NR_sync_file_range, sys_sync_file_range), // 314
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|
|
|
// LINX_(__NR_tee, sys_ni_syscall), // 315
|
|
// LINX_(__NR_vmsplice, sys_ni_syscall), // 316
|
|
// LINX_(__NR_move_pages, sys_ni_syscall), // 317
|
|
// LINX_(__NR_getcpu, sys_ni_syscall), // 318
|
|
LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 319
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|
|
|
LINX_(__NR_utimensat, sys_utimensat), // 320
|
|
LINXY(__NR_signalfd, sys_signalfd), // 321
|
|
LINXY(__NR_timerfd_create, sys_timerfd_create), // 322
|
|
LINX_(__NR_eventfd, sys_eventfd), // 323
|
|
// LINX_(__NR_fallocate, sys_ni_syscall), // 324
|
|
|
|
LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 325
|
|
LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 326
|
|
LINXY(__NR_signalfd4, sys_signalfd4), // 327
|
|
LINX_(__NR_eventfd2, sys_eventfd2), // 328
|
|
// (__NR_epoll_create1, sys_ni_syscall) // 329
|
|
|
|
// (__NR_dup3, sys_ni_syscall) // 330
|
|
LINXY(__NR_pipe2, sys_pipe2) // 331
|
|
// (__NR_inotify_init1, sys_ni_syscall) // 332
|
|
};
|
|
|
|
const UInt ML_(syscall_table_size) =
|
|
sizeof(ML_(syscall_table)) / sizeof(ML_(syscall_table)[0]);
|
|
|
|
#endif // defined(VGP_x86_linux)
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- end ---*/
|
|
/*--------------------------------------------------------------------*/
|