mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-08 21:09:49 +00:00
51c6c85e22
At various places, there were either some assumption that the 'end'
boundary (highest address) was either not included, included,
or was the highest addressable word, or the highest addressable byte.
This e.g. was very visible when doing:
./vg-in-place -d -d ./helgrind/tests/tc01_simple_race|&grep regi
giving
--24040:2:stacks register 0xBEDB4000-0xBEDB4FFF as stack 0
--24040:2:stacks register 0x402C000-0x4A2C000 as stack 1
showing that the main stack end was (on x86) not the highest word
but the highest byte, while for the thread 1, the registered end
was a byte not part of the stack.
The attached patch ensures that stack bounds semantic are documented and
consistent. Also, some of the stack handling code is factorised.
The convention that the patch ensures and documents is:
start is the lowest addressable byte, end is the highest addressable byte.
(the words 'min' and 'max' have been kept when already used, as this wording is
consistent with the new semantic of start/end).
In various debug log, used brackets [ and ] to make clear that
both bounds are included.
The code to guess and register the client stack was duplicated
in all the platform specific syswrap-<plat>-<os>.c files.
Code has been factorised in syswrap-generic.c
The patch has been regression tested on
x86, amd64, ppc32/64, s390x.
It has been compiled and one test run on arm64.
Not compiled/not tested on darwin, android, mips32/64, arm
More in details, the patch does the following:
coregrind/pub_core_aspacemgr.h
include/valgrind.h
include/pub_tool_machine.h
coregrind/pub_core_scheduler.h
coregrind/pub_core_stacks.h
- document start/end semantic in various functions
also in pub_tool_machine.h:
- replaces unclear 'bottommost address' by 'lowest address'
(unclear as stack bottom is or at least can be interpreted as
the 'functional' bottom of the stack, which is the highest
address for 'stack growing downwards').
coregrind/pub_core_initimg.h
replace unclear clstack_top by clstack_end
coregrind/m_main.c
updated to clstack_end
coregrind/pub_core_threadstate.h
renamed client_stack_highest_word to client_stack_highest_byte
coregrind/m_scheduler/scheduler.c
computes client_stack_highest_byte as the highest addressable byte
Update comments in call to VG_(show_sched_status)
coregrind/m_machine.c
coregrind/m_stacktrace.c
updated to client_stack_highest_byte, and switched
stack_lowest/highest_word to stack_lowest/highest_byte accordingly
coregrind/m_stacks.c
clarify semantic of start/end,
added a comment to indicate why we invert start/end in register call
(note that the code find_stack_by_addr was already assuming that
end was included as the checks were doing e.g.
sp >= i->start && sp <= i->end
coregrind/pub_core_clientstate.h
coregrind/m_clientstate.c
renames Addr VG_(clstk_base) to Addr VG_(clstk_start_base)
(start to indicate it is the lowest address, base suffix kept
to indicate it is the initial lowest address).
coregrind/m_initimg/initimg-darwin.c
updated to VG_(clstk_start_base)
replace unclear iicii.clstack_top by iicii.clstack_end
updated clstack_max_size computation according to both bounds included.
coregrind/m_initimg/initimg-linux.c
updated to VG_(clstk_start_base)
updated VG_(clstk_end) computation according to both bounds included.
replace unclear iicii.clstack_top by iicii.clstack_end
coregrind/pub_core_aspacemgr.h
extern Addr VG_(am_startup) : clarify semantic of the returned value
coregrind/m_aspacemgr/aspacemgr-linux.c
removed a copy of a comment that was already in pub_core_aspacemgr.h
(avoid double maintenance)
renamed unclear suggested_clstack_top to suggested_clstack_end
(note that here, it looks like suggested_clstack_top was already
the last addressable byte)
* factorisation of the stack guessing and registration causes
mechanical changes in the following files:
coregrind/m_syswrap/syswrap-ppc64-linux.c
coregrind/m_syswrap/syswrap-x86-darwin.c
coregrind/m_syswrap/syswrap-amd64-linux.c
coregrind/m_syswrap/syswrap-arm-linux.c
coregrind/m_syswrap/syswrap-generic.c
coregrind/m_syswrap/syswrap-mips64-linux.c
coregrind/m_syswrap/syswrap-ppc32-linux.c
coregrind/m_syswrap/syswrap-amd64-darwin.c
coregrind/m_syswrap/syswrap-mips32-linux.c
coregrind/m_syswrap/priv_syswrap-generic.h
coregrind/m_syswrap/syswrap-x86-linux.c
coregrind/m_syswrap/syswrap-s390x-linux.c
coregrind/m_syswrap/syswrap-darwin.c
coregrind/m_syswrap/syswrap-arm64-linux.c
Some files to look at more in details:
syswrap-darwin.c : the handling of sysctl(kern.usrstack) looked
buggy to me, and has probably be made correct by the fact that
VG_(clstk_end) is now the last addressable byte. However,unsure
about this, as I could not find any documentation about
sysctl(kern.usrstack). I only find several occurences on the web,
showing that the result of this is page aligned, which I guess
means it must be 1+ the last addressable byte.
syswrap-x86-darwin.c and syswrap-amd64-darwin.c
I suspect the code that was computing client_stack_highest_word
was wrong, and the patch makes it correct.
syswrap-mips64-linux.c
not sure what to do for this code. This is the only code
that was guessing the stack differently from others.
Kept (almost) untouched. To be discussed with mips maintainers.
coregrind/pub_core_libcassert.h
coregrind/m_libcassert.c
* void VG_(show_sched_status):
renamed Bool valgrind_stack_usage to Bool stack_usage
if stack_usage, shows both the valgrind stack usage and
the client stack boundaries
coregrind/m_scheduler/scheduler.c
coregrind/m_gdbserver/server.c
coregrind/m_gdbserver/remote-utils.c
Updated comments in callers to VG_(show_sched_status)
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14392
1089 lines
42 KiB
C
1089 lines
42 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Platform-specific syscalls stuff. syswrap-amd64-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) 2000-2013 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_amd64_linux)
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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_libcsetjmp.h" // to keep _threadstate.h happy
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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_options.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_scheduler.h"
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#include "pub_core_sigframe.h"
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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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// %rdi == stack
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// %rsi == retaddr
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// %rdx == f
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// %rcx == 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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" movq %rdi, %rsp\n" // set stack
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" pushq %rsi\n" // retaddr to stack
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" pushq %rdx\n" // f to stack
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" pushq %rcx\n" // arg1 to stack
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" movq $0, %rax\n" // zero all GP regs
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" movq $0, %rbx\n"
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" movq $0, %rcx\n"
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" movq $0, %rdx\n"
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" movq $0, %rsi\n"
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" movq $0, %rdi\n"
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" movq $0, %rbp\n"
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" movq $0, %r8\n"
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" movq $0, %r9\n"
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" movq $0, %r10\n"
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" movq $0, %r11\n"
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" movq $0, %r12\n"
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" movq $0, %r13\n"
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" movq $0, %r14\n"
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" movq $0, %r15\n"
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" popq %rdi\n" // arg1 to correct arg reg
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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 %rdi
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void* child_stack in %rsi
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int flags in %rdx
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void* arg in %rcx
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pid_t* child_tid in %r8
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pid_t* parent_tid in %r9
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void* tls_ptr at 8(%rsp)
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System call requires:
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int $__NR_clone in %rax
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int flags in %rdi
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void* child_stack in %rsi
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pid_t* parent_tid in %rdx
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pid_t* child_tid in %r10
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void* tls_ptr in %r8
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Returns a Long encoded in the linux-amd64 way, not a SysRes.
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*/
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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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Long do_syscall_clone_amd64_linux ( Word (*fn)(void *),
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void* stack,
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Long flags,
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void* arg,
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Long* child_tid,
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Long* 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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".globl do_syscall_clone_amd64_linux\n"
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"do_syscall_clone_amd64_linux:\n"
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// set up child stack, temporarily preserving fn and arg
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" subq $16, %rsi\n" // make space on stack
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" movq %rcx, 8(%rsi)\n" // save arg
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" movq %rdi, 0(%rsi)\n" // save fn
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// setup syscall
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" movq $"__NR_CLONE", %rax\n" // syscall number
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" movq %rdx, %rdi\n" // syscall arg1: flags
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// %rsi already setup // syscall arg2: child_stack
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" movq %r9, %rdx\n" // syscall arg3: parent_tid
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" movq %r8, %r10\n" // syscall arg4: child_tid
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" movq 8(%rsp), %r8\n" // syscall arg5: tls_ptr
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" syscall\n" // clone()
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" testq %rax, %rax\n" // child if retval == 0
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" jnz 1f\n"
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// CHILD - call thread function
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" pop %rax\n" // pop fn
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" pop %rdi\n" // pop fn arg1: arg
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" call *%rax\n" // call fn
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// exit with result
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" movq %rax, %rdi\n" // arg1: return value from fn
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" movq $"__NR_EXIT", %rax\n"
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" syscall\n"
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// Exit returned?!
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" ud2\n"
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"1:\n" // PARENT or ERROR
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" ret\n"
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".previous\n"
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);
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#undef __NR_CLONE
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#undef __NR_EXIT
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// forward declaration
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static void setup_child ( ThreadArchState*, ThreadArchState* );
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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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ULong flags, Addr rsp,
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Long* parent_tidptr,
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Long* child_tidptr,
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Addr tlsaddr )
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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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SysRes res;
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Long rax;
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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 rsp for the new thread, then
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it actually gets a copy of the parent's rsp.
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*/
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setup_child( &ctst->arch, &ptst->arch );
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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_RAX = 0;
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if (rsp != 0)
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ctst->arch.vex.guest_RSP = rsp;
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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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/* Start the child with its threadgroup being the same as the
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parent's. This is so that any exit_group calls that happen
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after the child is created but before it sets its
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os_state.threadgroup field for real (in thread_wrapper in
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syswrap-linux.c), really kill the new thread. a.k.a this avoids
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a race condition in which the thread is unkillable (via
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exit_group) because its threadgroup is not set. The race window
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is probably only a few hundred or a few thousand cycles long.
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See #226116. */
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ctst->os_state.threadgroup = ptst->os_state.threadgroup;
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ML_(guess_and_register_stack) (rsp, ctst);
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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. If the clone
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fails, we'll send out a ll_exit notification for it at the out:
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label below, to clean up. */
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vg_assert(VG_(owns_BigLock_LL)(ptid));
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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 at %#lx\n", tlsaddr);
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ctst->arch.vex.guest_FS_ZERO = tlsaddr;
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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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rax = do_syscall_clone_amd64_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_amd64_linux)( rax );
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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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More thread stuff
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------------------------------------------------------------------ */
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void VG_(cleanup_thread) ( ThreadArchState *arch )
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{
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}
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void setup_child ( /*OUT*/ ThreadArchState *child,
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/*IN*/ ThreadArchState *parent )
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{
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/* We inherit our parent's guest state. */
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child->vex = parent->vex;
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child->vex_shadow1 = parent->vex_shadow1;
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child->vex_shadow2 = parent->vex_shadow2;
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}
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/* ---------------------------------------------------------------------
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PRE/POST wrappers for AMD64/Linux-specific syscalls
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------------------------------------------------------------------ */
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#define PRE(name) DEFN_PRE_TEMPLATE(amd64_linux, name)
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#define POST(name) DEFN_POST_TEMPLATE(amd64_linux, name)
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/* Add prototypes for the wrappers declared here, so that gcc doesn't
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harass us for not having prototypes. Really this is a kludge --
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the right thing to do is to make these wrappers 'static' since they
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aren't visible outside this file, but that requires even more macro
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magic. */
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DECL_TEMPLATE(amd64_linux, sys_clone);
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DECL_TEMPLATE(amd64_linux, sys_rt_sigreturn);
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DECL_TEMPLATE(amd64_linux, sys_arch_prctl);
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DECL_TEMPLATE(amd64_linux, sys_ptrace);
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DECL_TEMPLATE(amd64_linux, sys_fadvise64);
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DECL_TEMPLATE(amd64_linux, sys_mmap);
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DECL_TEMPLATE(amd64_linux, sys_syscall184);
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PRE(sys_clone)
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{
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ULong cloneflags;
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PRINT("sys_clone ( %lx, %#lx, %#lx, %#lx, %#lx )",ARG1,ARG2,ARG3,ARG4,ARG5);
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PRE_REG_READ2(int, "clone",
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unsigned long, flags,
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void *, child_stack);
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if (ARG1 & VKI_CLONE_PARENT_SETTID) {
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if (VG_(tdict).track_pre_reg_read) {
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PRA3("clone", int *, parent_tidptr);
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}
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PRE_MEM_WRITE("clone(parent_tidptr)", ARG3, sizeof(Int));
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if (!VG_(am_is_valid_for_client)(ARG3, sizeof(Int), VKI_PROT_WRITE)) {
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SET_STATUS_Failure( VKI_EFAULT );
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return;
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}
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}
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if (ARG1 & VKI_CLONE_SETTLS) {
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if (VG_(tdict).track_pre_reg_read) {
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PRA4("clone", vki_modify_ldt_t *, tlsinfo);
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}
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PRE_MEM_READ("clone(tlsinfo)", ARG4, sizeof(vki_modify_ldt_t));
|
|
if (!VG_(am_is_valid_for_client)(ARG4, sizeof(vki_modify_ldt_t),
|
|
VKI_PROT_READ)) {
|
|
SET_STATUS_Failure( VKI_EFAULT );
|
|
return;
|
|
}
|
|
}
|
|
if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID)) {
|
|
if (VG_(tdict).track_pre_reg_read) {
|
|
PRA5("clone", int *, child_tidptr);
|
|
}
|
|
PRE_MEM_WRITE("clone(child_tidptr)", ARG4, sizeof(Int));
|
|
if (!VG_(am_is_valid_for_client)(ARG4, sizeof(Int), VKI_PROT_WRITE)) {
|
|
SET_STATUS_Failure( VKI_EFAULT );
|
|
return;
|
|
}
|
|
}
|
|
|
|
cloneflags = ARG1;
|
|
|
|
if (!ML_(client_signal_OK)(ARG1 & VKI_CSIGNAL)) {
|
|
SET_STATUS_Failure( VKI_EINVAL );
|
|
return;
|
|
}
|
|
|
|
/* Only look at the flags we really care about */
|
|
switch (cloneflags & (VKI_CLONE_VM | VKI_CLONE_FS
|
|
| VKI_CLONE_FILES | VKI_CLONE_VFORK)) {
|
|
case VKI_CLONE_VM | VKI_CLONE_FS | VKI_CLONE_FILES:
|
|
/* thread creation */
|
|
SET_STATUS_from_SysRes(
|
|
do_clone(tid,
|
|
ARG1, /* flags */
|
|
(Addr)ARG2, /* child ESP */
|
|
(Long *)ARG3, /* parent_tidptr */
|
|
(Long *)ARG4, /* child_tidptr */
|
|
(Addr)ARG5)); /* set_tls */
|
|
break;
|
|
|
|
case VKI_CLONE_VFORK | VKI_CLONE_VM: /* vfork */
|
|
/* FALLTHROUGH - assume vfork == fork */
|
|
cloneflags &= ~(VKI_CLONE_VFORK | VKI_CLONE_VM);
|
|
|
|
case 0: /* plain fork */
|
|
SET_STATUS_from_SysRes(
|
|
ML_(do_fork_clone)(tid,
|
|
cloneflags, /* flags */
|
|
(Int *)ARG3, /* parent_tidptr */
|
|
(Int *)ARG4)); /* child_tidptr */
|
|
break;
|
|
|
|
default:
|
|
/* should we just ENOSYS? */
|
|
VG_(message)(Vg_UserMsg,
|
|
"Unsupported clone() flags: 0x%lx\n", ARG1);
|
|
VG_(message)(Vg_UserMsg,
|
|
"\n");
|
|
VG_(message)(Vg_UserMsg,
|
|
"The only supported clone() uses are:\n");
|
|
VG_(message)(Vg_UserMsg,
|
|
" - via a threads library (LinuxThreads or NPTL)\n");
|
|
VG_(message)(Vg_UserMsg,
|
|
" - via the implementation of fork or vfork\n");
|
|
VG_(unimplemented)
|
|
("Valgrind does not support general clone().");
|
|
}
|
|
|
|
if (SUCCESS) {
|
|
if (ARG1 & VKI_CLONE_PARENT_SETTID)
|
|
POST_MEM_WRITE(ARG3, sizeof(Int));
|
|
if (ARG1 & (VKI_CLONE_CHILD_SETTID | VKI_CLONE_CHILD_CLEARTID))
|
|
POST_MEM_WRITE(ARG4, sizeof(Int));
|
|
|
|
/* Thread creation was successful; let the child have the chance
|
|
to run */
|
|
*flags |= SfYieldAfter;
|
|
}
|
|
}
|
|
|
|
PRE(sys_rt_sigreturn)
|
|
{
|
|
/* This isn't really a syscall at all - it's a misuse of the
|
|
syscall mechanism by m_sigframe. VG_(sigframe_create) sets the
|
|
return address of the signal frames it creates to be a short
|
|
piece of code which does this "syscall". The only purpose of
|
|
the syscall is to call VG_(sigframe_destroy), which restores the
|
|
thread's registers from the frame and then removes it.
|
|
Consequently we must ask the syswrap driver logic not to write
|
|
back the syscall "result" as that would overwrite the
|
|
just-restored register state. */
|
|
|
|
ThreadState* tst;
|
|
PRINT("sys_rt_sigreturn ( )");
|
|
|
|
vg_assert(VG_(is_valid_tid)(tid));
|
|
vg_assert(tid >= 1 && tid < VG_N_THREADS);
|
|
vg_assert(VG_(is_running_thread)(tid));
|
|
|
|
/* Adjust RSP to point to start of frame; skip back up over handler
|
|
ret addr */
|
|
tst = VG_(get_ThreadState)(tid);
|
|
tst->arch.vex.guest_RSP -= sizeof(Addr);
|
|
|
|
/* This is only so that the RIP is (might be) useful to report if
|
|
something goes wrong in the sigreturn. JRS 20070318: no idea
|
|
what this is for */
|
|
ML_(fixup_guest_state_to_restart_syscall)(&tst->arch);
|
|
|
|
/* Restore register state from frame and remove it, as
|
|
described above */
|
|
VG_(sigframe_destroy)(tid, True);
|
|
|
|
/* Tell the driver not to update the guest state with the "result",
|
|
and set a bogus result to keep it happy. */
|
|
*flags |= SfNoWriteResult;
|
|
SET_STATUS_Success(0);
|
|
|
|
/* Check to see if any signals arose as a result of this. */
|
|
*flags |= SfPollAfter;
|
|
}
|
|
|
|
PRE(sys_arch_prctl)
|
|
{
|
|
ThreadState* tst;
|
|
PRINT( "arch_prctl ( %ld, %lx )", ARG1, ARG2 );
|
|
|
|
vg_assert(VG_(is_valid_tid)(tid));
|
|
vg_assert(tid >= 1 && tid < VG_N_THREADS);
|
|
vg_assert(VG_(is_running_thread)(tid));
|
|
|
|
// Nb: can't use "ARG2".."ARG5" here because that's our own macro...
|
|
PRE_REG_READ2(long, "arch_prctl",
|
|
int, option, unsigned long, arg2);
|
|
// XXX: totally wrong... we need to look at the 'option' arg, and do
|
|
// PRE_MEM_READs/PRE_MEM_WRITEs as necessary...
|
|
|
|
/* "do" the syscall ourselves; the kernel never sees it */
|
|
if (ARG1 == VKI_ARCH_SET_FS) {
|
|
tst = VG_(get_ThreadState)(tid);
|
|
tst->arch.vex.guest_FS_ZERO = ARG2;
|
|
}
|
|
else if (ARG1 == VKI_ARCH_GET_FS) {
|
|
PRE_MEM_WRITE("arch_prctl(addr)", ARG2, sizeof(unsigned long));
|
|
tst = VG_(get_ThreadState)(tid);
|
|
*(unsigned long *)ARG2 = tst->arch.vex.guest_FS_ZERO;
|
|
POST_MEM_WRITE(ARG2, sizeof(unsigned long));
|
|
}
|
|
else {
|
|
VG_(core_panic)("Unsupported arch_prtctl option");
|
|
}
|
|
|
|
/* Note; the Status writeback to guest state that happens after
|
|
this wrapper returns does not change guest_FS_ZERO; hence that
|
|
direct assignment to the guest state is safe here. */
|
|
SET_STATUS_Success( 0 );
|
|
}
|
|
|
|
// Parts of this are amd64-specific, but the *PEEK* cases are generic.
|
|
//
|
|
// ARG3 is only used for pointers into the traced process's address
|
|
// space and for offsets into the traced process's struct
|
|
// user_regs_struct. It is never a pointer into this process's memory
|
|
// space, and we should therefore not check anything it points to.
|
|
PRE(sys_ptrace)
|
|
{
|
|
PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", 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_SETREGS:
|
|
PRE_MEM_READ( "ptrace(setregs)", ARG4,
|
|
sizeof (struct vki_user_regs_struct));
|
|
break;
|
|
case VKI_PTRACE_SETFPREGS:
|
|
PRE_MEM_READ( "ptrace(setfpregs)", ARG4,
|
|
sizeof (struct vki_user_i387_struct));
|
|
break;
|
|
case VKI_PTRACE_GETEVENTMSG:
|
|
PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
|
|
break;
|
|
case VKI_PTRACE_GETSIGINFO:
|
|
PRE_MEM_WRITE( "ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
|
|
break;
|
|
case VKI_PTRACE_SETSIGINFO:
|
|
PRE_MEM_READ( "ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
|
|
break;
|
|
case VKI_PTRACE_GETREGSET:
|
|
ML_(linux_PRE_getregset)(tid, ARG3, ARG4);
|
|
break;
|
|
case VKI_PTRACE_SETREGSET:
|
|
ML_(linux_PRE_setregset)(tid, ARG3, ARG4);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
POST(sys_ptrace)
|
|
{
|
|
switch (ARG1) {
|
|
case VKI_PTRACE_PEEKTEXT:
|
|
case VKI_PTRACE_PEEKDATA:
|
|
case VKI_PTRACE_PEEKUSR:
|
|
POST_MEM_WRITE( ARG4, sizeof (long));
|
|
break;
|
|
case VKI_PTRACE_GETREGS:
|
|
POST_MEM_WRITE( ARG4, sizeof (struct vki_user_regs_struct));
|
|
break;
|
|
case VKI_PTRACE_GETFPREGS:
|
|
POST_MEM_WRITE( ARG4, sizeof (struct vki_user_i387_struct));
|
|
break;
|
|
case VKI_PTRACE_GETEVENTMSG:
|
|
POST_MEM_WRITE( ARG4, sizeof(unsigned long));
|
|
break;
|
|
case VKI_PTRACE_GETSIGINFO:
|
|
/* XXX: This is a simplification. Different parts of the
|
|
* siginfo_t are valid depending on the type of signal.
|
|
*/
|
|
POST_MEM_WRITE( ARG4, sizeof(vki_siginfo_t));
|
|
break;
|
|
case VKI_PTRACE_GETREGSET:
|
|
ML_(linux_POST_getregset)(tid, ARG3, ARG4);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
PRE(sys_fadvise64)
|
|
{
|
|
PRINT("sys_fadvise64 ( %ld, %ld, %lu, %ld )", ARG1,ARG2,ARG3,ARG4);
|
|
PRE_REG_READ4(long, "fadvise64",
|
|
int, fd, vki_loff_t, offset, vki_size_t, len, int, advice);
|
|
}
|
|
|
|
PRE(sys_mmap)
|
|
{
|
|
SysRes r;
|
|
|
|
PRINT("sys_mmap ( %#lx, %llu, %ld, %ld, %d, %ld )",
|
|
ARG1, (ULong)ARG2, ARG3, ARG4, (Int)ARG5, ARG6 );
|
|
PRE_REG_READ6(long, "mmap",
|
|
unsigned long, start, unsigned long, length,
|
|
unsigned long, prot, unsigned long, flags,
|
|
unsigned long, fd, unsigned long, offset);
|
|
|
|
r = ML_(generic_PRE_sys_mmap)( tid, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6 );
|
|
SET_STATUS_from_SysRes(r);
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------
|
|
PRE/POST wrappers for AMD64/Linux-variant specific syscalls
|
|
------------------------------------------------------------ */
|
|
|
|
PRE(sys_syscall184)
|
|
{
|
|
Int err;
|
|
|
|
/* 184 is used by sys_bproc. If we're not on a declared bproc
|
|
variant, fail in the usual way, since it is otherwise unused. */
|
|
|
|
if (!KernelVariantiS(KernelVariant_bproc, VG_(clo_kernel_variant))) {
|
|
PRINT("non-existent syscall! (syscall 184)");
|
|
PRE_REG_READ0(long, "ni_syscall(184)");
|
|
SET_STATUS_Failure( VKI_ENOSYS );
|
|
return;
|
|
}
|
|
|
|
err = ML_(linux_variant_PRE_sys_bproc)( ARG1, ARG2, ARG3,
|
|
ARG4, ARG5, ARG6 );
|
|
if (err) {
|
|
SET_STATUS_Failure( err );
|
|
return;
|
|
}
|
|
/* Let it go through. */
|
|
*flags |= SfMayBlock; /* who knows? play safe. */
|
|
}
|
|
|
|
POST(sys_syscall184)
|
|
{
|
|
ML_(linux_variant_POST_sys_bproc)( ARG1, ARG2, ARG3,
|
|
ARG4, ARG5, ARG6 );
|
|
}
|
|
|
|
#undef PRE
|
|
#undef POST
|
|
|
|
|
|
/* ---------------------------------------------------------------------
|
|
The AMD64/Linux syscall table
|
|
------------------------------------------------------------------ */
|
|
|
|
/* Add an amd64-linux specific wrapper to a syscall table. */
|
|
#define PLAX_(const, name) WRAPPER_ENTRY_X_(amd64_linux, const, name)
|
|
#define PLAXY(const, name) WRAPPER_ENTRY_XY(amd64_linux, const, name)
|
|
|
|
// This table maps from __NR_xxx syscall numbers (from
|
|
// linux/include/asm-x86_64/unistd.h) to the appropriate PRE/POST sys_foo()
|
|
// wrappers on AMD64 (as per sys_call_table in
|
|
// linux/arch/x86_64/kernel/entry.S).
|
|
//
|
|
// When implementing these wrappers, you need to work out if the wrapper is
|
|
// generic, Linux-only (but arch-independent), or AMD64/Linux only.
|
|
|
|
static SyscallTableEntry syscall_table[] = {
|
|
GENXY(__NR_read, sys_read), // 0
|
|
GENX_(__NR_write, sys_write), // 1
|
|
GENXY(__NR_open, sys_open), // 2
|
|
GENXY(__NR_close, sys_close), // 3
|
|
GENXY(__NR_stat, sys_newstat), // 4
|
|
|
|
GENXY(__NR_fstat, sys_newfstat), // 5
|
|
GENXY(__NR_lstat, sys_newlstat), // 6
|
|
GENXY(__NR_poll, sys_poll), // 7
|
|
LINX_(__NR_lseek, sys_lseek), // 8
|
|
PLAX_(__NR_mmap, sys_mmap), // 9
|
|
|
|
GENXY(__NR_mprotect, sys_mprotect), // 10
|
|
GENXY(__NR_munmap, sys_munmap), // 11
|
|
GENX_(__NR_brk, sys_brk), // 12
|
|
LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 13
|
|
LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 14
|
|
|
|
PLAX_(__NR_rt_sigreturn, sys_rt_sigreturn), // 15
|
|
LINXY(__NR_ioctl, sys_ioctl), // 16
|
|
GENXY(__NR_pread64, sys_pread64), // 17
|
|
GENX_(__NR_pwrite64, sys_pwrite64), // 18
|
|
GENXY(__NR_readv, sys_readv), // 19
|
|
|
|
GENX_(__NR_writev, sys_writev), // 20
|
|
GENX_(__NR_access, sys_access), // 21
|
|
LINXY(__NR_pipe, sys_pipe), // 22
|
|
GENX_(__NR_select, sys_select), // 23
|
|
LINX_(__NR_sched_yield, sys_sched_yield), // 24
|
|
|
|
GENX_(__NR_mremap, sys_mremap), // 25
|
|
GENX_(__NR_msync, sys_msync), // 26
|
|
GENXY(__NR_mincore, sys_mincore), // 27
|
|
GENX_(__NR_madvise, sys_madvise), // 28
|
|
LINX_(__NR_shmget, sys_shmget), // 29
|
|
|
|
LINXY(__NR_shmat, wrap_sys_shmat), // 30
|
|
LINXY(__NR_shmctl, sys_shmctl), // 31
|
|
GENXY(__NR_dup, sys_dup), // 32
|
|
GENXY(__NR_dup2, sys_dup2), // 33
|
|
GENX_(__NR_pause, sys_pause), // 34
|
|
|
|
GENXY(__NR_nanosleep, sys_nanosleep), // 35
|
|
GENXY(__NR_getitimer, sys_getitimer), // 36
|
|
GENX_(__NR_alarm, sys_alarm), // 37
|
|
GENXY(__NR_setitimer, sys_setitimer), // 38
|
|
GENX_(__NR_getpid, sys_getpid), // 39
|
|
|
|
LINXY(__NR_sendfile, sys_sendfile), // 40
|
|
LINXY(__NR_socket, sys_socket), // 41
|
|
LINX_(__NR_connect, sys_connect), // 42
|
|
LINXY(__NR_accept, sys_accept), // 43
|
|
LINX_(__NR_sendto, sys_sendto), // 44
|
|
|
|
LINXY(__NR_recvfrom, sys_recvfrom), // 45
|
|
LINX_(__NR_sendmsg, sys_sendmsg), // 46
|
|
LINXY(__NR_recvmsg, sys_recvmsg), // 47
|
|
LINX_(__NR_shutdown, sys_shutdown), // 48
|
|
LINX_(__NR_bind, sys_bind), // 49
|
|
|
|
LINX_(__NR_listen, sys_listen), // 50
|
|
LINXY(__NR_getsockname, sys_getsockname), // 51
|
|
LINXY(__NR_getpeername, sys_getpeername), // 52
|
|
LINXY(__NR_socketpair, sys_socketpair), // 53
|
|
LINX_(__NR_setsockopt, sys_setsockopt), // 54
|
|
|
|
LINXY(__NR_getsockopt, sys_getsockopt), // 55
|
|
PLAX_(__NR_clone, sys_clone), // 56
|
|
GENX_(__NR_fork, sys_fork), // 57
|
|
GENX_(__NR_vfork, sys_fork), // 58 treat as fork
|
|
GENX_(__NR_execve, sys_execve), // 59
|
|
|
|
GENX_(__NR_exit, sys_exit), // 60
|
|
GENXY(__NR_wait4, sys_wait4), // 61
|
|
GENX_(__NR_kill, sys_kill), // 62
|
|
GENXY(__NR_uname, sys_newuname), // 63
|
|
LINX_(__NR_semget, sys_semget), // 64
|
|
|
|
LINX_(__NR_semop, sys_semop), // 65
|
|
LINXY(__NR_semctl, sys_semctl), // 66
|
|
LINXY(__NR_shmdt, sys_shmdt), // 67
|
|
LINX_(__NR_msgget, sys_msgget), // 68
|
|
LINX_(__NR_msgsnd, sys_msgsnd), // 69
|
|
|
|
LINXY(__NR_msgrcv, sys_msgrcv), // 70
|
|
LINXY(__NR_msgctl, sys_msgctl), // 71
|
|
LINXY(__NR_fcntl, sys_fcntl), // 72
|
|
GENX_(__NR_flock, sys_flock), // 73
|
|
GENX_(__NR_fsync, sys_fsync), // 74
|
|
|
|
GENX_(__NR_fdatasync, sys_fdatasync), // 75
|
|
GENX_(__NR_truncate, sys_truncate), // 76
|
|
GENX_(__NR_ftruncate, sys_ftruncate), // 77
|
|
GENXY(__NR_getdents, sys_getdents), // 78
|
|
GENXY(__NR_getcwd, sys_getcwd), // 79
|
|
|
|
GENX_(__NR_chdir, sys_chdir), // 80
|
|
GENX_(__NR_fchdir, sys_fchdir), // 81
|
|
GENX_(__NR_rename, sys_rename), // 82
|
|
GENX_(__NR_mkdir, sys_mkdir), // 83
|
|
GENX_(__NR_rmdir, sys_rmdir), // 84
|
|
|
|
GENXY(__NR_creat, sys_creat), // 85
|
|
GENX_(__NR_link, sys_link), // 86
|
|
GENX_(__NR_unlink, sys_unlink), // 87
|
|
GENX_(__NR_symlink, sys_symlink), // 88
|
|
GENX_(__NR_readlink, sys_readlink), // 89
|
|
|
|
GENX_(__NR_chmod, sys_chmod), // 90
|
|
GENX_(__NR_fchmod, sys_fchmod), // 91
|
|
GENX_(__NR_chown, sys_chown), // 92
|
|
GENX_(__NR_fchown, sys_fchown), // 93
|
|
GENX_(__NR_lchown, sys_lchown), // 94
|
|
|
|
GENX_(__NR_umask, sys_umask), // 95
|
|
GENXY(__NR_gettimeofday, sys_gettimeofday), // 96
|
|
GENXY(__NR_getrlimit, sys_getrlimit), // 97
|
|
GENXY(__NR_getrusage, sys_getrusage), // 98
|
|
LINXY(__NR_sysinfo, sys_sysinfo), // 99
|
|
|
|
GENXY(__NR_times, sys_times), // 100
|
|
PLAXY(__NR_ptrace, sys_ptrace), // 101
|
|
GENX_(__NR_getuid, sys_getuid), // 102
|
|
LINXY(__NR_syslog, sys_syslog), // 103
|
|
GENX_(__NR_getgid, sys_getgid), // 104
|
|
|
|
GENX_(__NR_setuid, sys_setuid), // 105
|
|
GENX_(__NR_setgid, sys_setgid), // 106
|
|
GENX_(__NR_geteuid, sys_geteuid), // 107
|
|
GENX_(__NR_getegid, sys_getegid), // 108
|
|
GENX_(__NR_setpgid, sys_setpgid), // 109
|
|
|
|
GENX_(__NR_getppid, sys_getppid), // 110
|
|
GENX_(__NR_getpgrp, sys_getpgrp), // 111
|
|
GENX_(__NR_setsid, sys_setsid), // 112
|
|
GENX_(__NR_setreuid, sys_setreuid), // 113
|
|
GENX_(__NR_setregid, sys_setregid), // 114
|
|
|
|
GENXY(__NR_getgroups, sys_getgroups), // 115
|
|
GENX_(__NR_setgroups, sys_setgroups), // 116
|
|
LINX_(__NR_setresuid, sys_setresuid), // 117
|
|
LINXY(__NR_getresuid, sys_getresuid), // 118
|
|
LINX_(__NR_setresgid, sys_setresgid), // 119
|
|
|
|
LINXY(__NR_getresgid, sys_getresgid), // 120
|
|
GENX_(__NR_getpgid, sys_getpgid), // 121
|
|
LINX_(__NR_setfsuid, sys_setfsuid), // 122
|
|
LINX_(__NR_setfsgid, sys_setfsgid), // 123
|
|
GENX_(__NR_getsid, sys_getsid), // 124
|
|
|
|
LINXY(__NR_capget, sys_capget), // 125
|
|
LINX_(__NR_capset, sys_capset), // 126
|
|
LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 127
|
|
LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait),// 128
|
|
LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),// 129
|
|
|
|
LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 130
|
|
GENXY(__NR_sigaltstack, sys_sigaltstack), // 131
|
|
LINX_(__NR_utime, sys_utime), // 132
|
|
GENX_(__NR_mknod, sys_mknod), // 133
|
|
// (__NR_uselib, sys_uselib), // 134
|
|
|
|
LINX_(__NR_personality, sys_personality), // 135
|
|
// (__NR_ustat, sys_ustat), // 136
|
|
GENXY(__NR_statfs, sys_statfs), // 137
|
|
GENXY(__NR_fstatfs, sys_fstatfs), // 138
|
|
// (__NR_sysfs, sys_sysfs), // 139
|
|
|
|
GENX_(__NR_getpriority, sys_getpriority), // 140
|
|
GENX_(__NR_setpriority, sys_setpriority), // 141
|
|
LINXY(__NR_sched_setparam, sys_sched_setparam), // 142
|
|
LINXY(__NR_sched_getparam, sys_sched_getparam), // 143
|
|
LINX_(__NR_sched_setscheduler, sys_sched_setscheduler), // 144
|
|
|
|
LINX_(__NR_sched_getscheduler, sys_sched_getscheduler), // 145
|
|
LINX_(__NR_sched_get_priority_max, sys_sched_get_priority_max), // 146
|
|
LINX_(__NR_sched_get_priority_min, sys_sched_get_priority_min), // 147
|
|
LINXY(__NR_sched_rr_get_interval, sys_sched_rr_get_interval), // 148
|
|
GENX_(__NR_mlock, sys_mlock), // 149
|
|
|
|
GENX_(__NR_munlock, sys_munlock), // 150
|
|
GENX_(__NR_mlockall, sys_mlockall), // 151
|
|
LINX_(__NR_munlockall, sys_munlockall), // 152
|
|
LINX_(__NR_vhangup, sys_vhangup), // 153
|
|
// (__NR_modify_ldt, sys_modify_ldt), // 154
|
|
|
|
// (__NR_pivot_root, sys_pivot_root), // 155
|
|
LINXY(__NR__sysctl, sys_sysctl), // 156
|
|
LINXY(__NR_prctl, sys_prctl), // 157
|
|
PLAX_(__NR_arch_prctl, sys_arch_prctl), // 158
|
|
LINXY(__NR_adjtimex, sys_adjtimex), // 159
|
|
|
|
GENX_(__NR_setrlimit, sys_setrlimit), // 160
|
|
GENX_(__NR_chroot, sys_chroot), // 161
|
|
GENX_(__NR_sync, sys_sync), // 162
|
|
// (__NR_acct, sys_acct), // 163
|
|
GENX_(__NR_settimeofday, sys_settimeofday), // 164
|
|
|
|
LINX_(__NR_mount, sys_mount), // 165
|
|
LINX_(__NR_umount2, sys_umount), // 166
|
|
// (__NR_swapon, sys_swapon), // 167
|
|
// (__NR_swapoff, sys_swapoff), // 168
|
|
// (__NR_reboot, sys_reboot), // 169
|
|
|
|
GENX_(__NR_sethostname, sys_sethostname), // 170
|
|
// (__NR_setdomainname, sys_setdomainname), // 171
|
|
GENX_(__NR_iopl, sys_iopl), // 172
|
|
LINX_(__NR_ioperm, sys_ioperm), // 173
|
|
GENX_(__NR_create_module, sys_ni_syscall), // 174
|
|
|
|
LINX_(__NR_init_module, sys_init_module), // 175
|
|
LINX_(__NR_delete_module, sys_delete_module), // 176
|
|
// (__NR_get_kernel_syms, sys_ni_syscall), // 177
|
|
// (__NR_query_module, sys_ni_syscall), // 178
|
|
LINX_(__NR_quotactl, sys_quotactl), // 179
|
|
|
|
// (__NR_nfsservctl, sys_nfsservctl), // 180
|
|
// (__NR_getpmsg, sys_ni_syscall), // 181
|
|
// (__NR_putpmsg, sys_ni_syscall), // 182
|
|
// (__NR_afs_syscall, sys_ni_syscall), // 183
|
|
PLAXY(184, sys_syscall184), // 184 // sys_bproc?
|
|
|
|
// (__NR_security, sys_ni_syscall), // 185
|
|
LINX_(__NR_gettid, sys_gettid), // 186
|
|
LINX_(__NR_readahead, sys_readahead), // 187
|
|
LINX_(__NR_setxattr, sys_setxattr), // 188
|
|
LINX_(__NR_lsetxattr, sys_lsetxattr), // 189
|
|
|
|
LINX_(__NR_fsetxattr, sys_fsetxattr), // 190
|
|
LINXY(__NR_getxattr, sys_getxattr), // 191
|
|
LINXY(__NR_lgetxattr, sys_lgetxattr), // 192
|
|
LINXY(__NR_fgetxattr, sys_fgetxattr), // 193
|
|
LINXY(__NR_listxattr, sys_listxattr), // 194
|
|
|
|
LINXY(__NR_llistxattr, sys_llistxattr), // 195
|
|
LINXY(__NR_flistxattr, sys_flistxattr), // 196
|
|
LINX_(__NR_removexattr, sys_removexattr), // 197
|
|
LINX_(__NR_lremovexattr, sys_lremovexattr), // 198
|
|
LINX_(__NR_fremovexattr, sys_fremovexattr), // 199
|
|
|
|
LINXY(__NR_tkill, sys_tkill), // 200
|
|
GENXY(__NR_time, sys_time), /*was sys_time64*/ // 201
|
|
LINXY(__NR_futex, sys_futex), // 202
|
|
LINX_(__NR_sched_setaffinity, sys_sched_setaffinity), // 203
|
|
LINXY(__NR_sched_getaffinity, sys_sched_getaffinity), // 204
|
|
|
|
// (__NR_set_thread_area, sys_ni_syscall), // 205
|
|
LINXY(__NR_io_setup, sys_io_setup), // 206
|
|
LINX_(__NR_io_destroy, sys_io_destroy), // 207
|
|
LINXY(__NR_io_getevents, sys_io_getevents), // 208
|
|
LINX_(__NR_io_submit, sys_io_submit), // 209
|
|
|
|
LINXY(__NR_io_cancel, sys_io_cancel), // 210
|
|
// (__NR_get_thread_area, sys_ni_syscall), // 211
|
|
LINXY(__NR_lookup_dcookie, sys_lookup_dcookie), // 212
|
|
LINXY(__NR_epoll_create, sys_epoll_create), // 213
|
|
// (__NR_epoll_ctl_old, sys_ni_syscall), // 214
|
|
|
|
// (__NR_epoll_wait_old, sys_ni_syscall), // 215
|
|
// (__NR_remap_file_pages, sys_remap_file_pages)// 216
|
|
GENXY(__NR_getdents64, sys_getdents64), // 217
|
|
LINX_(__NR_set_tid_address, sys_set_tid_address),// 218
|
|
// (__NR_restart_syscall, sys_restart_syscall),// 219
|
|
|
|
LINX_(__NR_semtimedop, sys_semtimedop), // 220
|
|
PLAX_(__NR_fadvise64, sys_fadvise64), // 221
|
|
LINXY(__NR_timer_create, sys_timer_create), // 222
|
|
LINXY(__NR_timer_settime, sys_timer_settime), // 223
|
|
LINXY(__NR_timer_gettime, sys_timer_gettime), // 224
|
|
|
|
LINX_(__NR_timer_getoverrun, sys_timer_getoverrun), // 225
|
|
LINX_(__NR_timer_delete, sys_timer_delete), // 226
|
|
LINX_(__NR_clock_settime, sys_clock_settime), // 227
|
|
LINXY(__NR_clock_gettime, sys_clock_gettime), // 228
|
|
LINXY(__NR_clock_getres, sys_clock_getres), // 229
|
|
|
|
LINXY(__NR_clock_nanosleep, sys_clock_nanosleep),// 230
|
|
LINX_(__NR_exit_group, sys_exit_group), // 231
|
|
LINXY(__NR_epoll_wait, sys_epoll_wait), // 232
|
|
LINX_(__NR_epoll_ctl, sys_epoll_ctl), // 233
|
|
LINXY(__NR_tgkill, sys_tgkill), // 234
|
|
|
|
GENX_(__NR_utimes, sys_utimes), // 235
|
|
// (__NR_vserver, sys_ni_syscall), // 236
|
|
LINX_(__NR_mbind, sys_mbind), // 237
|
|
LINX_(__NR_set_mempolicy, sys_set_mempolicy), // 238
|
|
LINXY(__NR_get_mempolicy, sys_get_mempolicy), // 239
|
|
|
|
LINXY(__NR_mq_open, sys_mq_open), // 240
|
|
LINX_(__NR_mq_unlink, sys_mq_unlink), // 241
|
|
LINX_(__NR_mq_timedsend, sys_mq_timedsend), // 242
|
|
LINXY(__NR_mq_timedreceive, sys_mq_timedreceive),// 243
|
|
LINX_(__NR_mq_notify, sys_mq_notify), // 244
|
|
|
|
LINXY(__NR_mq_getsetattr, sys_mq_getsetattr), // 245
|
|
// (__NR_kexec_load, sys_ni_syscall), // 246
|
|
LINXY(__NR_waitid, sys_waitid), // 247
|
|
LINX_(__NR_add_key, sys_add_key), // 248
|
|
LINX_(__NR_request_key, sys_request_key), // 249
|
|
|
|
LINXY(__NR_keyctl, sys_keyctl), // 250
|
|
LINX_(__NR_ioprio_set, sys_ioprio_set), // 251
|
|
LINX_(__NR_ioprio_get, sys_ioprio_get), // 252
|
|
LINX_(__NR_inotify_init, sys_inotify_init), // 253
|
|
LINX_(__NR_inotify_add_watch, sys_inotify_add_watch), // 254
|
|
|
|
LINX_(__NR_inotify_rm_watch, sys_inotify_rm_watch), // 255
|
|
// LINX_(__NR_migrate_pages, sys_migrate_pages), // 256
|
|
LINXY(__NR_openat, sys_openat), // 257
|
|
LINX_(__NR_mkdirat, sys_mkdirat), // 258
|
|
LINX_(__NR_mknodat, sys_mknodat), // 259
|
|
|
|
LINX_(__NR_fchownat, sys_fchownat), // 260
|
|
LINX_(__NR_futimesat, sys_futimesat), // 261
|
|
LINXY(__NR_newfstatat, sys_newfstatat), // 262
|
|
LINX_(__NR_unlinkat, sys_unlinkat), // 263
|
|
LINX_(__NR_renameat, sys_renameat), // 264
|
|
|
|
LINX_(__NR_linkat, sys_linkat), // 265
|
|
LINX_(__NR_symlinkat, sys_symlinkat), // 266
|
|
LINX_(__NR_readlinkat, sys_readlinkat), // 267
|
|
LINX_(__NR_fchmodat, sys_fchmodat), // 268
|
|
LINX_(__NR_faccessat, sys_faccessat), // 269
|
|
|
|
LINX_(__NR_pselect6, sys_pselect6), // 270
|
|
LINXY(__NR_ppoll, sys_ppoll), // 271
|
|
// LINX_(__NR_unshare, sys_unshare), // 272
|
|
LINX_(__NR_set_robust_list, sys_set_robust_list), // 273
|
|
LINXY(__NR_get_robust_list, sys_get_robust_list), // 274
|
|
|
|
LINX_(__NR_splice, sys_splice), // 275
|
|
LINX_(__NR_tee, sys_tee), // 276
|
|
LINX_(__NR_sync_file_range, sys_sync_file_range), // 277
|
|
LINXY(__NR_vmsplice, sys_vmsplice), // 278
|
|
LINXY(__NR_move_pages, sys_move_pages), // 279
|
|
|
|
LINX_(__NR_utimensat, sys_utimensat), // 280
|
|
LINXY(__NR_epoll_pwait, sys_epoll_pwait), // 281
|
|
LINXY(__NR_signalfd, sys_signalfd), // 282
|
|
LINXY(__NR_timerfd_create, sys_timerfd_create), // 283
|
|
LINXY(__NR_eventfd, sys_eventfd), // 284
|
|
|
|
LINX_(__NR_fallocate, sys_fallocate), // 285
|
|
LINXY(__NR_timerfd_settime, sys_timerfd_settime), // 286
|
|
LINXY(__NR_timerfd_gettime, sys_timerfd_gettime), // 287
|
|
LINXY(__NR_accept4, sys_accept4), // 288
|
|
LINXY(__NR_signalfd4, sys_signalfd4), // 289
|
|
|
|
LINXY(__NR_eventfd2, sys_eventfd2), // 290
|
|
LINXY(__NR_epoll_create1, sys_epoll_create1), // 291
|
|
LINXY(__NR_dup3, sys_dup3), // 292
|
|
LINXY(__NR_pipe2, sys_pipe2), // 293
|
|
LINXY(__NR_inotify_init1, sys_inotify_init1), // 294
|
|
|
|
LINXY(__NR_preadv, sys_preadv), // 295
|
|
LINX_(__NR_pwritev, sys_pwritev), // 296
|
|
LINXY(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),// 297
|
|
LINXY(__NR_perf_event_open, sys_perf_event_open), // 298
|
|
LINXY(__NR_recvmmsg, sys_recvmmsg), // 299
|
|
|
|
LINXY(__NR_fanotify_init, sys_fanotify_init), // 300
|
|
LINX_(__NR_fanotify_mark, sys_fanotify_mark), // 301
|
|
LINXY(__NR_prlimit64, sys_prlimit64), // 302
|
|
LINXY(__NR_name_to_handle_at, sys_name_to_handle_at),// 303
|
|
LINXY(__NR_open_by_handle_at, sys_open_by_handle_at),// 304
|
|
|
|
LINXY(__NR_clock_adjtime, sys_clock_adjtime), // 305
|
|
// LINX_(__NR_syncfs, sys_ni_syscall), // 306
|
|
LINXY(__NR_sendmmsg, sys_sendmmsg), // 307
|
|
// LINX_(__NR_setns, sys_ni_syscall), // 308
|
|
LINXY(__NR_getcpu, sys_getcpu), // 309
|
|
|
|
LINXY(__NR_process_vm_readv, sys_process_vm_readv), // 310
|
|
LINX_(__NR_process_vm_writev, sys_process_vm_writev) // 311
|
|
};
|
|
|
|
SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
|
|
{
|
|
const UInt syscall_table_size
|
|
= sizeof(syscall_table) / sizeof(syscall_table[0]);
|
|
|
|
/* Is it in the contiguous initial section of the table? */
|
|
if (sysno < syscall_table_size) {
|
|
SyscallTableEntry* sys = &syscall_table[sysno];
|
|
if (sys->before == NULL)
|
|
return NULL; /* no entry */
|
|
else
|
|
return sys;
|
|
}
|
|
|
|
/* Can't find a wrapper */
|
|
return NULL;
|
|
}
|
|
|
|
#endif // defined(VGP_amd64_linux)
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/*--- end ---*/
|
|
/*--------------------------------------------------------------------*/
|