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deb6001509
In particular fsys_getppid always returns the ppid in the initial pid namespace so it does not work for a process in a pid namespace. Fix from Eric Biederman just removes the fast system call path. While it is a little bit sad to see another one of these bite the dust ... I can't imagine that getppid() is really on any real applications critical path. Signed-off-by: Tony Luck <tony.luck@intel.com>
837 lines
24 KiB
ArmAsm
837 lines
24 KiB
ArmAsm
/*
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* This file contains the light-weight system call handlers (fsyscall-handlers).
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*
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* Copyright (C) 2003 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*
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* 25-Sep-03 davidm Implement fsys_rt_sigprocmask().
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* 18-Feb-03 louisk Implement fsys_gettimeofday().
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* 28-Feb-03 davidm Fixed several bugs in fsys_gettimeofday(). Tuned it some more,
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* probably broke it along the way... ;-)
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* 13-Jul-04 clameter Implement fsys_clock_gettime and revise fsys_gettimeofday to make
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* it capable of using memory based clocks without falling back to C code.
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* 08-Feb-07 Fenghua Yu Implement fsys_getcpu.
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*
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*/
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#include <asm/asmmacro.h>
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#include <asm/errno.h>
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#include <asm/asm-offsets.h>
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#include <asm/percpu.h>
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#include <asm/thread_info.h>
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#include <asm/sal.h>
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#include <asm/signal.h>
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#include <asm/unistd.h>
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#include "entry.h"
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#include "paravirt_inst.h"
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/*
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* See Documentation/ia64/fsys.txt for details on fsyscalls.
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*
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* On entry to an fsyscall handler:
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* r10 = 0 (i.e., defaults to "successful syscall return")
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* r11 = saved ar.pfs (a user-level value)
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* r15 = system call number
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* r16 = "current" task pointer (in normal kernel-mode, this is in r13)
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* r32-r39 = system call arguments
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* b6 = return address (a user-level value)
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* ar.pfs = previous frame-state (a user-level value)
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* PSR.be = cleared to zero (i.e., little-endian byte order is in effect)
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* all other registers may contain values passed in from user-mode
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*
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* On return from an fsyscall handler:
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* r11 = saved ar.pfs (as passed into the fsyscall handler)
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* r15 = system call number (as passed into the fsyscall handler)
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* r32-r39 = system call arguments (as passed into the fsyscall handler)
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* b6 = return address (as passed into the fsyscall handler)
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* ar.pfs = previous frame-state (as passed into the fsyscall handler)
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*/
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ENTRY(fsys_ni_syscall)
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.prologue
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.altrp b6
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.body
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mov r8=ENOSYS
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mov r10=-1
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FSYS_RETURN
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END(fsys_ni_syscall)
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ENTRY(fsys_getpid)
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.prologue
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.altrp b6
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.body
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add r17=IA64_TASK_GROUP_LEADER_OFFSET,r16
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;;
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ld8 r17=[r17] // r17 = current->group_leader
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add r9=TI_FLAGS+IA64_TASK_SIZE,r16
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;;
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ld4 r9=[r9]
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add r17=IA64_TASK_TGIDLINK_OFFSET,r17
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;;
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and r9=TIF_ALLWORK_MASK,r9
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ld8 r17=[r17] // r17 = current->group_leader->pids[PIDTYPE_PID].pid
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;;
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add r8=IA64_PID_LEVEL_OFFSET,r17
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;;
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ld4 r8=[r8] // r8 = pid->level
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add r17=IA64_PID_UPID_OFFSET,r17 // r17 = &pid->numbers[0]
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;;
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shl r8=r8,IA64_UPID_SHIFT
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;;
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add r17=r17,r8 // r17 = &pid->numbers[pid->level]
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;;
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ld4 r8=[r17] // r8 = pid->numbers[pid->level].nr
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;;
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mov r17=0
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;;
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cmp.ne p8,p0=0,r9
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(p8) br.spnt.many fsys_fallback_syscall
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FSYS_RETURN
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END(fsys_getpid)
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ENTRY(fsys_set_tid_address)
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.prologue
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.altrp b6
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.body
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add r9=TI_FLAGS+IA64_TASK_SIZE,r16
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add r17=IA64_TASK_TGIDLINK_OFFSET,r16
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;;
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ld4 r9=[r9]
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tnat.z p6,p7=r32 // check argument register for being NaT
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ld8 r17=[r17] // r17 = current->pids[PIDTYPE_PID].pid
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;;
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and r9=TIF_ALLWORK_MASK,r9
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add r8=IA64_PID_LEVEL_OFFSET,r17
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add r18=IA64_TASK_CLEAR_CHILD_TID_OFFSET,r16
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;;
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ld4 r8=[r8] // r8 = pid->level
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add r17=IA64_PID_UPID_OFFSET,r17 // r17 = &pid->numbers[0]
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;;
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shl r8=r8,IA64_UPID_SHIFT
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;;
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add r17=r17,r8 // r17 = &pid->numbers[pid->level]
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;;
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ld4 r8=[r17] // r8 = pid->numbers[pid->level].nr
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;;
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cmp.ne p8,p0=0,r9
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mov r17=-1
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;;
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(p6) st8 [r18]=r32
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(p7) st8 [r18]=r17
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(p8) br.spnt.many fsys_fallback_syscall
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;;
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mov r17=0 // i must not leak kernel bits...
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mov r18=0 // i must not leak kernel bits...
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FSYS_RETURN
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END(fsys_set_tid_address)
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#if IA64_GTOD_SEQ_OFFSET !=0
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#error fsys_gettimeofday incompatible with changes to struct fsyscall_gtod_data_t
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#endif
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#if IA64_ITC_JITTER_OFFSET !=0
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#error fsys_gettimeofday incompatible with changes to struct itc_jitter_data_t
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#endif
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#define CLOCK_REALTIME 0
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#define CLOCK_MONOTONIC 1
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#define CLOCK_DIVIDE_BY_1000 0x4000
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#define CLOCK_ADD_MONOTONIC 0x8000
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ENTRY(fsys_gettimeofday)
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.prologue
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.altrp b6
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.body
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mov r31 = r32
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tnat.nz p6,p0 = r33 // guard against NaT argument
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(p6) br.cond.spnt.few .fail_einval
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mov r30 = CLOCK_DIVIDE_BY_1000
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;;
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.gettime:
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// Register map
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// Incoming r31 = pointer to address where to place result
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// r30 = flags determining how time is processed
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// r2,r3 = temp r4-r7 preserved
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// r8 = result nanoseconds
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// r9 = result seconds
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// r10 = temporary storage for clock difference
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// r11 = preserved: saved ar.pfs
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// r12 = preserved: memory stack
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// r13 = preserved: thread pointer
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// r14 = address of mask / mask value
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// r15 = preserved: system call number
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// r16 = preserved: current task pointer
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// r17 = (not used)
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// r18 = (not used)
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// r19 = address of itc_lastcycle
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// r20 = struct fsyscall_gtod_data (= address of gtod_lock.sequence)
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// r21 = address of mmio_ptr
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// r22 = address of wall_time or monotonic_time
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// r23 = address of shift / value
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// r24 = address mult factor / cycle_last value
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// r25 = itc_lastcycle value
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// r26 = address clocksource cycle_last
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// r27 = (not used)
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// r28 = sequence number at the beginning of critcal section
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// r29 = address of itc_jitter
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// r30 = time processing flags / memory address
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// r31 = pointer to result
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// Predicates
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// p6,p7 short term use
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// p8 = timesource ar.itc
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// p9 = timesource mmio64
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// p10 = timesource mmio32 - not used
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// p11 = timesource not to be handled by asm code
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// p12 = memory time source ( = p9 | p10) - not used
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// p13 = do cmpxchg with itc_lastcycle
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// p14 = Divide by 1000
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// p15 = Add monotonic
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//
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// Note that instructions are optimized for McKinley. McKinley can
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// process two bundles simultaneously and therefore we continuously
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// try to feed the CPU two bundles and then a stop.
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add r2 = TI_FLAGS+IA64_TASK_SIZE,r16
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tnat.nz p6,p0 = r31 // guard against Nat argument
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(p6) br.cond.spnt.few .fail_einval
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movl r20 = fsyscall_gtod_data // load fsyscall gettimeofday data address
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;;
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ld4 r2 = [r2] // process work pending flags
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movl r29 = itc_jitter_data // itc_jitter
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add r22 = IA64_GTOD_WALL_TIME_OFFSET,r20 // wall_time
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add r21 = IA64_CLKSRC_MMIO_OFFSET,r20
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mov pr = r30,0xc000 // Set predicates according to function
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;;
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and r2 = TIF_ALLWORK_MASK,r2
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add r19 = IA64_ITC_LASTCYCLE_OFFSET,r29
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(p15) add r22 = IA64_GTOD_MONO_TIME_OFFSET,r20 // monotonic_time
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;;
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add r26 = IA64_CLKSRC_CYCLE_LAST_OFFSET,r20 // clksrc_cycle_last
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cmp.ne p6, p0 = 0, r2 // Fallback if work is scheduled
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(p6) br.cond.spnt.many fsys_fallback_syscall
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;;
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// Begin critical section
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.time_redo:
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ld4.acq r28 = [r20] // gtod_lock.sequence, Must take first
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;;
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and r28 = ~1,r28 // And make sequence even to force retry if odd
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;;
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ld8 r30 = [r21] // clocksource->mmio_ptr
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add r24 = IA64_CLKSRC_MULT_OFFSET,r20
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ld4 r2 = [r29] // itc_jitter value
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add r23 = IA64_CLKSRC_SHIFT_OFFSET,r20
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add r14 = IA64_CLKSRC_MASK_OFFSET,r20
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;;
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ld4 r3 = [r24] // clocksource mult value
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ld8 r14 = [r14] // clocksource mask value
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cmp.eq p8,p9 = 0,r30 // use cpu timer if no mmio_ptr
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;;
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setf.sig f7 = r3 // Setup for mult scaling of counter
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(p8) cmp.ne p13,p0 = r2,r0 // need itc_jitter compensation, set p13
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ld4 r23 = [r23] // clocksource shift value
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ld8 r24 = [r26] // get clksrc_cycle_last value
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(p9) cmp.eq p13,p0 = 0,r30 // if mmio_ptr, clear p13 jitter control
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;;
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.pred.rel.mutex p8,p9
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MOV_FROM_ITC(p8, p6, r2, r10) // CPU_TIMER. 36 clocks latency!!!
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(p9) ld8 r2 = [r30] // MMIO_TIMER. Could also have latency issues..
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(p13) ld8 r25 = [r19] // get itc_lastcycle value
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ld8 r9 = [r22],IA64_TIMESPEC_TV_NSEC_OFFSET // tv_sec
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;;
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ld8 r8 = [r22],-IA64_TIMESPEC_TV_NSEC_OFFSET // tv_nsec
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(p13) sub r3 = r25,r2 // Diff needed before comparison (thanks davidm)
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;;
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(p13) cmp.gt.unc p6,p7 = r3,r0 // check if it is less than last. p6,p7 cleared
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sub r10 = r2,r24 // current_cycle - last_cycle
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;;
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(p6) sub r10 = r25,r24 // time we got was less than last_cycle
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(p7) mov ar.ccv = r25 // more than last_cycle. Prep for cmpxchg
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;;
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(p7) cmpxchg8.rel r3 = [r19],r2,ar.ccv
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;;
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(p7) cmp.ne p7,p0 = r25,r3 // if cmpxchg not successful
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;;
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(p7) sub r10 = r3,r24 // then use new last_cycle instead
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;;
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and r10 = r10,r14 // Apply mask
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;;
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setf.sig f8 = r10
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nop.i 123
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;;
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// fault check takes 5 cycles and we have spare time
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EX(.fail_efault, probe.w.fault r31, 3)
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xmpy.l f8 = f8,f7 // nsec_per_cyc*(counter-last_counter)
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;;
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getf.sig r2 = f8
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mf
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;;
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ld4 r10 = [r20] // gtod_lock.sequence
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shr.u r2 = r2,r23 // shift by factor
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;;
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add r8 = r8,r2 // Add xtime.nsecs
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cmp4.ne p7,p0 = r28,r10
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(p7) br.cond.dpnt.few .time_redo // sequence number changed, redo
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// End critical section.
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// Now r8=tv->tv_nsec and r9=tv->tv_sec
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mov r10 = r0
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movl r2 = 1000000000
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add r23 = IA64_TIMESPEC_TV_NSEC_OFFSET, r31
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(p14) movl r3 = 2361183241434822607 // Prep for / 1000 hack
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;;
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.time_normalize:
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mov r21 = r8
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cmp.ge p6,p0 = r8,r2
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(p14) shr.u r20 = r8, 3 // We can repeat this if necessary just wasting time
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;;
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(p14) setf.sig f8 = r20
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(p6) sub r8 = r8,r2
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(p6) add r9 = 1,r9 // two nops before the branch.
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(p14) setf.sig f7 = r3 // Chances for repeats are 1 in 10000 for gettod
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(p6) br.cond.dpnt.few .time_normalize
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;;
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// Divided by 8 though shift. Now divide by 125
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// The compiler was able to do that with a multiply
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// and a shift and we do the same
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EX(.fail_efault, probe.w.fault r23, 3) // This also costs 5 cycles
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(p14) xmpy.hu f8 = f8, f7 // xmpy has 5 cycles latency so use it
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;;
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(p14) getf.sig r2 = f8
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;;
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mov r8 = r0
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(p14) shr.u r21 = r2, 4
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;;
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EX(.fail_efault, st8 [r31] = r9)
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EX(.fail_efault, st8 [r23] = r21)
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FSYS_RETURN
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.fail_einval:
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mov r8 = EINVAL
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mov r10 = -1
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FSYS_RETURN
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.fail_efault:
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mov r8 = EFAULT
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mov r10 = -1
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FSYS_RETURN
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END(fsys_gettimeofday)
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ENTRY(fsys_clock_gettime)
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.prologue
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.altrp b6
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.body
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cmp4.ltu p6, p0 = CLOCK_MONOTONIC, r32
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// Fallback if this is not CLOCK_REALTIME or CLOCK_MONOTONIC
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(p6) br.spnt.few fsys_fallback_syscall
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mov r31 = r33
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shl r30 = r32,15
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br.many .gettime
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END(fsys_clock_gettime)
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/*
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* fsys_getcpu doesn't use the third parameter in this implementation. It reads
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* current_thread_info()->cpu and corresponding node in cpu_to_node_map.
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*/
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ENTRY(fsys_getcpu)
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.prologue
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.altrp b6
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.body
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;;
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add r2=TI_FLAGS+IA64_TASK_SIZE,r16
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tnat.nz p6,p0 = r32 // guard against NaT argument
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add r3=TI_CPU+IA64_TASK_SIZE,r16
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;;
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ld4 r3=[r3] // M r3 = thread_info->cpu
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ld4 r2=[r2] // M r2 = thread_info->flags
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(p6) br.cond.spnt.few .fail_einval // B
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;;
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tnat.nz p7,p0 = r33 // I guard against NaT argument
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(p7) br.cond.spnt.few .fail_einval // B
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;;
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cmp.ne p6,p0=r32,r0
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cmp.ne p7,p0=r33,r0
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;;
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#ifdef CONFIG_NUMA
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movl r17=cpu_to_node_map
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;;
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EX(.fail_efault, (p6) probe.w.fault r32, 3) // M This takes 5 cycles
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EX(.fail_efault, (p7) probe.w.fault r33, 3) // M This takes 5 cycles
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shladd r18=r3,1,r17
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;;
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ld2 r20=[r18] // r20 = cpu_to_node_map[cpu]
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and r2 = TIF_ALLWORK_MASK,r2
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;;
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cmp.ne p8,p0=0,r2
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(p8) br.spnt.many fsys_fallback_syscall
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;;
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;;
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EX(.fail_efault, (p6) st4 [r32] = r3)
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EX(.fail_efault, (p7) st2 [r33] = r20)
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mov r8=0
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;;
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#else
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EX(.fail_efault, (p6) probe.w.fault r32, 3) // M This takes 5 cycles
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EX(.fail_efault, (p7) probe.w.fault r33, 3) // M This takes 5 cycles
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and r2 = TIF_ALLWORK_MASK,r2
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;;
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cmp.ne p8,p0=0,r2
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(p8) br.spnt.many fsys_fallback_syscall
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;;
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EX(.fail_efault, (p6) st4 [r32] = r3)
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EX(.fail_efault, (p7) st2 [r33] = r0)
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mov r8=0
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;;
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#endif
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FSYS_RETURN
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END(fsys_getcpu)
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ENTRY(fsys_fallback_syscall)
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.prologue
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.altrp b6
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.body
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/*
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* We only get here from light-weight syscall handlers. Thus, we already
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* know that r15 contains a valid syscall number. No need to re-check.
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*/
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adds r17=-1024,r15
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movl r14=sys_call_table
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;;
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RSM_PSR_I(p0, r26, r27)
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shladd r18=r17,3,r14
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;;
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ld8 r18=[r18] // load normal (heavy-weight) syscall entry-point
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MOV_FROM_PSR(p0, r29, r26) // read psr (12 cyc load latency)
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mov r27=ar.rsc
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mov r21=ar.fpsr
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mov r26=ar.pfs
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END(fsys_fallback_syscall)
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/* FALL THROUGH */
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GLOBAL_ENTRY(paravirt_fsys_bubble_down)
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.prologue
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.altrp b6
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.body
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/*
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* We get here for syscalls that don't have a lightweight
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* handler. For those, we need to bubble down into the kernel
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* and that requires setting up a minimal pt_regs structure,
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* and initializing the CPU state more or less as if an
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* interruption had occurred. To make syscall-restarts work,
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* we setup pt_regs such that cr_iip points to the second
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* instruction in syscall_via_break. Decrementing the IP
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* hence will restart the syscall via break and not
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* decrementing IP will return us to the caller, as usual.
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* Note that we preserve the value of psr.pp rather than
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* initializing it from dcr.pp. This makes it possible to
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* distinguish fsyscall execution from other privileged
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* execution.
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*
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* On entry:
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* - normal fsyscall handler register usage, except
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* that we also have:
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* - r18: address of syscall entry point
|
|
* - r21: ar.fpsr
|
|
* - r26: ar.pfs
|
|
* - r27: ar.rsc
|
|
* - r29: psr
|
|
*
|
|
* We used to clear some PSR bits here but that requires slow
|
|
* serialization. Fortuntely, that isn't really necessary.
|
|
* The rationale is as follows: we used to clear bits
|
|
* ~PSR_PRESERVED_BITS in PSR.L. Since
|
|
* PSR_PRESERVED_BITS==PSR.{UP,MFL,MFH,PK,DT,PP,SP,RT,IC}, we
|
|
* ended up clearing PSR.{BE,AC,I,DFL,DFH,DI,DB,SI,TB}.
|
|
* However,
|
|
*
|
|
* PSR.BE : already is turned off in __kernel_syscall_via_epc()
|
|
* PSR.AC : don't care (kernel normally turns PSR.AC on)
|
|
* PSR.I : already turned off by the time paravirt_fsys_bubble_down gets
|
|
* invoked
|
|
* PSR.DFL: always 0 (kernel never turns it on)
|
|
* PSR.DFH: don't care --- kernel never touches f32-f127 on its own
|
|
* initiative
|
|
* PSR.DI : always 0 (kernel never turns it on)
|
|
* PSR.SI : always 0 (kernel never turns it on)
|
|
* PSR.DB : don't care --- kernel never enables kernel-level
|
|
* breakpoints
|
|
* PSR.TB : must be 0 already; if it wasn't zero on entry to
|
|
* __kernel_syscall_via_epc, the branch to paravirt_fsys_bubble_down
|
|
* will trigger a taken branch; the taken-trap-handler then
|
|
* converts the syscall into a break-based system-call.
|
|
*/
|
|
/*
|
|
* Reading psr.l gives us only bits 0-31, psr.it, and psr.mc.
|
|
* The rest we have to synthesize.
|
|
*/
|
|
# define PSR_ONE_BITS ((3 << IA64_PSR_CPL0_BIT) \
|
|
| (0x1 << IA64_PSR_RI_BIT) \
|
|
| IA64_PSR_BN | IA64_PSR_I)
|
|
|
|
invala // M0|1
|
|
movl r14=ia64_ret_from_syscall // X
|
|
|
|
nop.m 0
|
|
movl r28=__kernel_syscall_via_break // X create cr.iip
|
|
;;
|
|
|
|
mov r2=r16 // A get task addr to addl-addressable register
|
|
adds r16=IA64_TASK_THREAD_ON_USTACK_OFFSET,r16 // A
|
|
mov r31=pr // I0 save pr (2 cyc)
|
|
;;
|
|
st1 [r16]=r0 // M2|3 clear current->thread.on_ustack flag
|
|
addl r22=IA64_RBS_OFFSET,r2 // A compute base of RBS
|
|
add r3=TI_FLAGS+IA64_TASK_SIZE,r2 // A
|
|
;;
|
|
ld4 r3=[r3] // M0|1 r3 = current_thread_info()->flags
|
|
lfetch.fault.excl.nt1 [r22] // M0|1 prefetch register backing-store
|
|
nop.i 0
|
|
;;
|
|
mov ar.rsc=0 // M2 set enforced lazy mode, pl 0, LE, loadrs=0
|
|
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
|
|
MOV_FROM_ITC(p0, p6, r30, r23) // M get cycle for accounting
|
|
#else
|
|
nop.m 0
|
|
#endif
|
|
nop.i 0
|
|
;;
|
|
mov r23=ar.bspstore // M2 (12 cyc) save ar.bspstore
|
|
mov.m r24=ar.rnat // M2 (5 cyc) read ar.rnat (dual-issues!)
|
|
nop.i 0
|
|
;;
|
|
mov ar.bspstore=r22 // M2 (6 cyc) switch to kernel RBS
|
|
movl r8=PSR_ONE_BITS // X
|
|
;;
|
|
mov r25=ar.unat // M2 (5 cyc) save ar.unat
|
|
mov r19=b6 // I0 save b6 (2 cyc)
|
|
mov r20=r1 // A save caller's gp in r20
|
|
;;
|
|
or r29=r8,r29 // A construct cr.ipsr value to save
|
|
mov b6=r18 // I0 copy syscall entry-point to b6 (7 cyc)
|
|
addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2 // A compute base of memory stack
|
|
|
|
mov r18=ar.bsp // M2 save (kernel) ar.bsp (12 cyc)
|
|
cmp.ne pKStk,pUStk=r0,r0 // A set pKStk <- 0, pUStk <- 1
|
|
br.call.sptk.many b7=ia64_syscall_setup // B
|
|
;;
|
|
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
|
|
// mov.m r30=ar.itc is called in advance
|
|
add r16=TI_AC_STAMP+IA64_TASK_SIZE,r2
|
|
add r17=TI_AC_LEAVE+IA64_TASK_SIZE,r2
|
|
;;
|
|
ld8 r18=[r16],TI_AC_STIME-TI_AC_STAMP // time at last check in kernel
|
|
ld8 r19=[r17],TI_AC_UTIME-TI_AC_LEAVE // time at leave kernel
|
|
;;
|
|
ld8 r20=[r16],TI_AC_STAMP-TI_AC_STIME // cumulated stime
|
|
ld8 r21=[r17] // cumulated utime
|
|
sub r22=r19,r18 // stime before leave kernel
|
|
;;
|
|
st8 [r16]=r30,TI_AC_STIME-TI_AC_STAMP // update stamp
|
|
sub r18=r30,r19 // elapsed time in user mode
|
|
;;
|
|
add r20=r20,r22 // sum stime
|
|
add r21=r21,r18 // sum utime
|
|
;;
|
|
st8 [r16]=r20 // update stime
|
|
st8 [r17]=r21 // update utime
|
|
;;
|
|
#endif
|
|
mov ar.rsc=0x3 // M2 set eager mode, pl 0, LE, loadrs=0
|
|
mov rp=r14 // I0 set the real return addr
|
|
and r3=_TIF_SYSCALL_TRACEAUDIT,r3 // A
|
|
;;
|
|
SSM_PSR_I(p0, p6, r22) // M2 we're on kernel stacks now, reenable irqs
|
|
cmp.eq p8,p0=r3,r0 // A
|
|
(p10) br.cond.spnt.many ia64_ret_from_syscall // B return if bad call-frame or r15 is a NaT
|
|
|
|
nop.m 0
|
|
(p8) br.call.sptk.many b6=b6 // B (ignore return address)
|
|
br.cond.spnt ia64_trace_syscall // B
|
|
END(paravirt_fsys_bubble_down)
|
|
|
|
.rodata
|
|
.align 8
|
|
.globl paravirt_fsyscall_table
|
|
|
|
data8 paravirt_fsys_bubble_down
|
|
paravirt_fsyscall_table:
|
|
data8 fsys_ni_syscall
|
|
data8 0 // exit // 1025
|
|
data8 0 // read
|
|
data8 0 // write
|
|
data8 0 // open
|
|
data8 0 // close
|
|
data8 0 // creat // 1030
|
|
data8 0 // link
|
|
data8 0 // unlink
|
|
data8 0 // execve
|
|
data8 0 // chdir
|
|
data8 0 // fchdir // 1035
|
|
data8 0 // utimes
|
|
data8 0 // mknod
|
|
data8 0 // chmod
|
|
data8 0 // chown
|
|
data8 0 // lseek // 1040
|
|
data8 fsys_getpid // getpid
|
|
data8 0 // getppid
|
|
data8 0 // mount
|
|
data8 0 // umount
|
|
data8 0 // setuid // 1045
|
|
data8 0 // getuid
|
|
data8 0 // geteuid
|
|
data8 0 // ptrace
|
|
data8 0 // access
|
|
data8 0 // sync // 1050
|
|
data8 0 // fsync
|
|
data8 0 // fdatasync
|
|
data8 0 // kill
|
|
data8 0 // rename
|
|
data8 0 // mkdir // 1055
|
|
data8 0 // rmdir
|
|
data8 0 // dup
|
|
data8 0 // pipe
|
|
data8 0 // times
|
|
data8 0 // brk // 1060
|
|
data8 0 // setgid
|
|
data8 0 // getgid
|
|
data8 0 // getegid
|
|
data8 0 // acct
|
|
data8 0 // ioctl // 1065
|
|
data8 0 // fcntl
|
|
data8 0 // umask
|
|
data8 0 // chroot
|
|
data8 0 // ustat
|
|
data8 0 // dup2 // 1070
|
|
data8 0 // setreuid
|
|
data8 0 // setregid
|
|
data8 0 // getresuid
|
|
data8 0 // setresuid
|
|
data8 0 // getresgid // 1075
|
|
data8 0 // setresgid
|
|
data8 0 // getgroups
|
|
data8 0 // setgroups
|
|
data8 0 // getpgid
|
|
data8 0 // setpgid // 1080
|
|
data8 0 // setsid
|
|
data8 0 // getsid
|
|
data8 0 // sethostname
|
|
data8 0 // setrlimit
|
|
data8 0 // getrlimit // 1085
|
|
data8 0 // getrusage
|
|
data8 fsys_gettimeofday // gettimeofday
|
|
data8 0 // settimeofday
|
|
data8 0 // select
|
|
data8 0 // poll // 1090
|
|
data8 0 // symlink
|
|
data8 0 // readlink
|
|
data8 0 // uselib
|
|
data8 0 // swapon
|
|
data8 0 // swapoff // 1095
|
|
data8 0 // reboot
|
|
data8 0 // truncate
|
|
data8 0 // ftruncate
|
|
data8 0 // fchmod
|
|
data8 0 // fchown // 1100
|
|
data8 0 // getpriority
|
|
data8 0 // setpriority
|
|
data8 0 // statfs
|
|
data8 0 // fstatfs
|
|
data8 0 // gettid // 1105
|
|
data8 0 // semget
|
|
data8 0 // semop
|
|
data8 0 // semctl
|
|
data8 0 // msgget
|
|
data8 0 // msgsnd // 1110
|
|
data8 0 // msgrcv
|
|
data8 0 // msgctl
|
|
data8 0 // shmget
|
|
data8 0 // shmat
|
|
data8 0 // shmdt // 1115
|
|
data8 0 // shmctl
|
|
data8 0 // syslog
|
|
data8 0 // setitimer
|
|
data8 0 // getitimer
|
|
data8 0 // 1120
|
|
data8 0
|
|
data8 0
|
|
data8 0 // vhangup
|
|
data8 0 // lchown
|
|
data8 0 // remap_file_pages // 1125
|
|
data8 0 // wait4
|
|
data8 0 // sysinfo
|
|
data8 0 // clone
|
|
data8 0 // setdomainname
|
|
data8 0 // newuname // 1130
|
|
data8 0 // adjtimex
|
|
data8 0
|
|
data8 0 // init_module
|
|
data8 0 // delete_module
|
|
data8 0 // 1135
|
|
data8 0
|
|
data8 0 // quotactl
|
|
data8 0 // bdflush
|
|
data8 0 // sysfs
|
|
data8 0 // personality // 1140
|
|
data8 0 // afs_syscall
|
|
data8 0 // setfsuid
|
|
data8 0 // setfsgid
|
|
data8 0 // getdents
|
|
data8 0 // flock // 1145
|
|
data8 0 // readv
|
|
data8 0 // writev
|
|
data8 0 // pread64
|
|
data8 0 // pwrite64
|
|
data8 0 // sysctl // 1150
|
|
data8 0 // mmap
|
|
data8 0 // munmap
|
|
data8 0 // mlock
|
|
data8 0 // mlockall
|
|
data8 0 // mprotect // 1155
|
|
data8 0 // mremap
|
|
data8 0 // msync
|
|
data8 0 // munlock
|
|
data8 0 // munlockall
|
|
data8 0 // sched_getparam // 1160
|
|
data8 0 // sched_setparam
|
|
data8 0 // sched_getscheduler
|
|
data8 0 // sched_setscheduler
|
|
data8 0 // sched_yield
|
|
data8 0 // sched_get_priority_max // 1165
|
|
data8 0 // sched_get_priority_min
|
|
data8 0 // sched_rr_get_interval
|
|
data8 0 // nanosleep
|
|
data8 0 // nfsservctl
|
|
data8 0 // prctl // 1170
|
|
data8 0 // getpagesize
|
|
data8 0 // mmap2
|
|
data8 0 // pciconfig_read
|
|
data8 0 // pciconfig_write
|
|
data8 0 // perfmonctl // 1175
|
|
data8 0 // sigaltstack
|
|
data8 0 // rt_sigaction
|
|
data8 0 // rt_sigpending
|
|
data8 0 // rt_sigprocmask
|
|
data8 0 // rt_sigqueueinfo // 1180
|
|
data8 0 // rt_sigreturn
|
|
data8 0 // rt_sigsuspend
|
|
data8 0 // rt_sigtimedwait
|
|
data8 0 // getcwd
|
|
data8 0 // capget // 1185
|
|
data8 0 // capset
|
|
data8 0 // sendfile
|
|
data8 0
|
|
data8 0
|
|
data8 0 // socket // 1190
|
|
data8 0 // bind
|
|
data8 0 // connect
|
|
data8 0 // listen
|
|
data8 0 // accept
|
|
data8 0 // getsockname // 1195
|
|
data8 0 // getpeername
|
|
data8 0 // socketpair
|
|
data8 0 // send
|
|
data8 0 // sendto
|
|
data8 0 // recv // 1200
|
|
data8 0 // recvfrom
|
|
data8 0 // shutdown
|
|
data8 0 // setsockopt
|
|
data8 0 // getsockopt
|
|
data8 0 // sendmsg // 1205
|
|
data8 0 // recvmsg
|
|
data8 0 // pivot_root
|
|
data8 0 // mincore
|
|
data8 0 // madvise
|
|
data8 0 // newstat // 1210
|
|
data8 0 // newlstat
|
|
data8 0 // newfstat
|
|
data8 0 // clone2
|
|
data8 0 // getdents64
|
|
data8 0 // getunwind // 1215
|
|
data8 0 // readahead
|
|
data8 0 // setxattr
|
|
data8 0 // lsetxattr
|
|
data8 0 // fsetxattr
|
|
data8 0 // getxattr // 1220
|
|
data8 0 // lgetxattr
|
|
data8 0 // fgetxattr
|
|
data8 0 // listxattr
|
|
data8 0 // llistxattr
|
|
data8 0 // flistxattr // 1225
|
|
data8 0 // removexattr
|
|
data8 0 // lremovexattr
|
|
data8 0 // fremovexattr
|
|
data8 0 // tkill
|
|
data8 0 // futex // 1230
|
|
data8 0 // sched_setaffinity
|
|
data8 0 // sched_getaffinity
|
|
data8 fsys_set_tid_address // set_tid_address
|
|
data8 0 // fadvise64_64
|
|
data8 0 // tgkill // 1235
|
|
data8 0 // exit_group
|
|
data8 0 // lookup_dcookie
|
|
data8 0 // io_setup
|
|
data8 0 // io_destroy
|
|
data8 0 // io_getevents // 1240
|
|
data8 0 // io_submit
|
|
data8 0 // io_cancel
|
|
data8 0 // epoll_create
|
|
data8 0 // epoll_ctl
|
|
data8 0 // epoll_wait // 1245
|
|
data8 0 // restart_syscall
|
|
data8 0 // semtimedop
|
|
data8 0 // timer_create
|
|
data8 0 // timer_settime
|
|
data8 0 // timer_gettime // 1250
|
|
data8 0 // timer_getoverrun
|
|
data8 0 // timer_delete
|
|
data8 0 // clock_settime
|
|
data8 fsys_clock_gettime // clock_gettime
|
|
data8 0 // clock_getres // 1255
|
|
data8 0 // clock_nanosleep
|
|
data8 0 // fstatfs64
|
|
data8 0 // statfs64
|
|
data8 0 // mbind
|
|
data8 0 // get_mempolicy // 1260
|
|
data8 0 // set_mempolicy
|
|
data8 0 // mq_open
|
|
data8 0 // mq_unlink
|
|
data8 0 // mq_timedsend
|
|
data8 0 // mq_timedreceive // 1265
|
|
data8 0 // mq_notify
|
|
data8 0 // mq_getsetattr
|
|
data8 0 // kexec_load
|
|
data8 0 // vserver
|
|
data8 0 // waitid // 1270
|
|
data8 0 // add_key
|
|
data8 0 // request_key
|
|
data8 0 // keyctl
|
|
data8 0 // ioprio_set
|
|
data8 0 // ioprio_get // 1275
|
|
data8 0 // move_pages
|
|
data8 0 // inotify_init
|
|
data8 0 // inotify_add_watch
|
|
data8 0 // inotify_rm_watch
|
|
data8 0 // migrate_pages // 1280
|
|
data8 0 // openat
|
|
data8 0 // mkdirat
|
|
data8 0 // mknodat
|
|
data8 0 // fchownat
|
|
data8 0 // futimesat // 1285
|
|
data8 0 // newfstatat
|
|
data8 0 // unlinkat
|
|
data8 0 // renameat
|
|
data8 0 // linkat
|
|
data8 0 // symlinkat // 1290
|
|
data8 0 // readlinkat
|
|
data8 0 // fchmodat
|
|
data8 0 // faccessat
|
|
data8 0
|
|
data8 0 // 1295
|
|
data8 0 // unshare
|
|
data8 0 // splice
|
|
data8 0 // set_robust_list
|
|
data8 0 // get_robust_list
|
|
data8 0 // sync_file_range // 1300
|
|
data8 0 // tee
|
|
data8 0 // vmsplice
|
|
data8 0
|
|
data8 fsys_getcpu // getcpu // 1304
|
|
|
|
// fill in zeros for the remaining entries
|
|
.zero:
|
|
.space paravirt_fsyscall_table + 8*NR_syscalls - .zero, 0
|