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-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * This file contains the light-weight system call handlers (fsyscall-handlers).
- *
- * Copyright (C) 2003 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 25-Sep-03 davidm Implement fsys_rt_sigprocmask().
- * 18-Feb-03 louisk Implement fsys_gettimeofday().
- * 28-Feb-03 davidm Fixed several bugs in fsys_gettimeofday(). Tuned it some more,
- * probably broke it along the way... ;-)
- * 13-Jul-04 clameter Implement fsys_clock_gettime and revise fsys_gettimeofday to make
- * it capable of using memory based clocks without falling back to C code.
- * 08-Feb-07 Fenghua Yu Implement fsys_getcpu.
- *
- */
-
-#include <asm/asmmacro.h>
-#include <asm/errno.h>
-#include <asm/asm-offsets.h>
-#include <asm/percpu.h>
-#include <asm/thread_info.h>
-#include <asm/sal.h>
-#include <asm/signal.h>
-#include <asm/unistd.h>
-
-#include "entry.h"
-#include <asm/native/inst.h>
-
-/*
- * See Documentation/arch/ia64/fsys.rst for details on fsyscalls.
- *
- * On entry to an fsyscall handler:
- * r10 = 0 (i.e., defaults to "successful syscall return")
- * r11 = saved ar.pfs (a user-level value)
- * r15 = system call number
- * r16 = "current" task pointer (in normal kernel-mode, this is in r13)
- * r32-r39 = system call arguments
- * b6 = return address (a user-level value)
- * ar.pfs = previous frame-state (a user-level value)
- * PSR.be = cleared to zero (i.e., little-endian byte order is in effect)
- * all other registers may contain values passed in from user-mode
- *
- * On return from an fsyscall handler:
- * r11 = saved ar.pfs (as passed into the fsyscall handler)
- * r15 = system call number (as passed into the fsyscall handler)
- * r32-r39 = system call arguments (as passed into the fsyscall handler)
- * b6 = return address (as passed into the fsyscall handler)
- * ar.pfs = previous frame-state (as passed into the fsyscall handler)
- */
-
-ENTRY(fsys_ni_syscall)
- .prologue
- .altrp b6
- .body
- mov r8=ENOSYS
- mov r10=-1
- FSYS_RETURN
-END(fsys_ni_syscall)
-
-ENTRY(fsys_getpid)
- .prologue
- .altrp b6
- .body
- add r17=IA64_TASK_SIGNAL_OFFSET,r16
- ;;
- ld8 r17=[r17] // r17 = current->signal
- add r9=TI_FLAGS+IA64_TASK_SIZE,r16
- ;;
- ld4 r9=[r9]
- add r17=IA64_SIGNAL_PIDS_TGID_OFFSET,r17
- ;;
- and r9=TIF_ALLWORK_MASK,r9
- ld8 r17=[r17] // r17 = current->signal->pids[PIDTYPE_TGID]
- ;;
- add r8=IA64_PID_LEVEL_OFFSET,r17
- ;;
- ld4 r8=[r8] // r8 = pid->level
- add r17=IA64_PID_UPID_OFFSET,r17 // r17 = &pid->numbers[0]
- ;;
- shl r8=r8,IA64_UPID_SHIFT
- ;;
- add r17=r17,r8 // r17 = &pid->numbers[pid->level]
- ;;
- ld4 r8=[r17] // r8 = pid->numbers[pid->level].nr
- ;;
- mov r17=0
- ;;
- cmp.ne p8,p0=0,r9
-(p8) br.spnt.many fsys_fallback_syscall
- FSYS_RETURN
-END(fsys_getpid)
-
-ENTRY(fsys_set_tid_address)
- .prologue
- .altrp b6
- .body
- add r9=TI_FLAGS+IA64_TASK_SIZE,r16
- add r17=IA64_TASK_THREAD_PID_OFFSET,r16
- ;;
- ld4 r9=[r9]
- tnat.z p6,p7=r32 // check argument register for being NaT
- ld8 r17=[r17] // r17 = current->thread_pid
- ;;
- and r9=TIF_ALLWORK_MASK,r9
- add r8=IA64_PID_LEVEL_OFFSET,r17
- add r18=IA64_TASK_CLEAR_CHILD_TID_OFFSET,r16
- ;;
- ld4 r8=[r8] // r8 = pid->level
- add r17=IA64_PID_UPID_OFFSET,r17 // r17 = &pid->numbers[0]
- ;;
- shl r8=r8,IA64_UPID_SHIFT
- ;;
- add r17=r17,r8 // r17 = &pid->numbers[pid->level]
- ;;
- ld4 r8=[r17] // r8 = pid->numbers[pid->level].nr
- ;;
- cmp.ne p8,p0=0,r9
- mov r17=-1
- ;;
-(p6) st8 [r18]=r32
-(p7) st8 [r18]=r17
-(p8) br.spnt.many fsys_fallback_syscall
- ;;
- mov r17=0 // i must not leak kernel bits...
- mov r18=0 // i must not leak kernel bits...
- FSYS_RETURN
-END(fsys_set_tid_address)
-
-#if IA64_GTOD_SEQ_OFFSET !=0
-#error fsys_gettimeofday incompatible with changes to struct fsyscall_gtod_data_t
-#endif
-#if IA64_ITC_JITTER_OFFSET !=0
-#error fsys_gettimeofday incompatible with changes to struct itc_jitter_data_t
-#endif
-#define CLOCK_REALTIME 0
-#define CLOCK_MONOTONIC 1
-#define CLOCK_DIVIDE_BY_1000 0x4000
-#define CLOCK_ADD_MONOTONIC 0x8000
-
-ENTRY(fsys_gettimeofday)
- .prologue
- .altrp b6
- .body
- mov r31 = r32
- tnat.nz p6,p0 = r33 // guard against NaT argument
-(p6) br.cond.spnt.few .fail_einval
- mov r30 = CLOCK_DIVIDE_BY_1000
- ;;
-.gettime:
- // Register map
- // Incoming r31 = pointer to address where to place result
- // r30 = flags determining how time is processed
- // r2,r3 = temp r4-r7 preserved
- // r8 = result nanoseconds
- // r9 = result seconds
- // r10 = temporary storage for clock difference
- // r11 = preserved: saved ar.pfs
- // r12 = preserved: memory stack
- // r13 = preserved: thread pointer
- // r14 = address of mask / mask value
- // r15 = preserved: system call number
- // r16 = preserved: current task pointer
- // r17 = (not used)
- // r18 = (not used)
- // r19 = address of itc_lastcycle
- // r20 = struct fsyscall_gtod_data (= address of gtod_lock.sequence)
- // r21 = address of mmio_ptr
- // r22 = address of wall_time or monotonic_time
- // r23 = address of shift / value
- // r24 = address mult factor / cycle_last value
- // r25 = itc_lastcycle value
- // r26 = address clocksource cycle_last
- // r27 = (not used)
- // r28 = sequence number at the beginning of critical section
- // r29 = address of itc_jitter
- // r30 = time processing flags / memory address
- // r31 = pointer to result
- // Predicates
- // p6,p7 short term use
- // p8 = timesource ar.itc
- // p9 = timesource mmio64
- // p10 = timesource mmio32 - not used
- // p11 = timesource not to be handled by asm code
- // p12 = memory time source ( = p9 | p10) - not used
- // p13 = do cmpxchg with itc_lastcycle
- // p14 = Divide by 1000
- // p15 = Add monotonic
- //
- // Note that instructions are optimized for McKinley. McKinley can
- // process two bundles simultaneously and therefore we continuously
- // try to feed the CPU two bundles and then a stop.
-
- add r2 = TI_FLAGS+IA64_TASK_SIZE,r16
- tnat.nz p6,p0 = r31 // guard against Nat argument
-(p6) br.cond.spnt.few .fail_einval
- movl r20 = fsyscall_gtod_data // load fsyscall gettimeofday data address
- ;;
- ld4 r2 = [r2] // process work pending flags
- movl r29 = itc_jitter_data // itc_jitter
- add r22 = IA64_GTOD_WALL_TIME_OFFSET,r20 // wall_time
- add r21 = IA64_CLKSRC_MMIO_OFFSET,r20
- mov pr = r30,0xc000 // Set predicates according to function
- ;;
- and r2 = TIF_ALLWORK_MASK,r2
- add r19 = IA64_ITC_LASTCYCLE_OFFSET,r29
-(p15) add r22 = IA64_GTOD_MONO_TIME_OFFSET,r20 // monotonic_time
- ;;
- add r26 = IA64_CLKSRC_CYCLE_LAST_OFFSET,r20 // clksrc_cycle_last
- cmp.ne p6, p0 = 0, r2 // Fallback if work is scheduled
-(p6) br.cond.spnt.many fsys_fallback_syscall
- ;;
- // Begin critical section
-.time_redo:
- ld4.acq r28 = [r20] // gtod_lock.sequence, Must take first
- ;;
- and r28 = ~1,r28 // And make sequence even to force retry if odd
- ;;
- ld8 r30 = [r21] // clocksource->mmio_ptr
- add r24 = IA64_CLKSRC_MULT_OFFSET,r20
- ld4 r2 = [r29] // itc_jitter value
- add r23 = IA64_CLKSRC_SHIFT_OFFSET,r20
- add r14 = IA64_CLKSRC_MASK_OFFSET,r20
- ;;
- ld4 r3 = [r24] // clocksource mult value
- ld8 r14 = [r14] // clocksource mask value
- cmp.eq p8,p9 = 0,r30 // use cpu timer if no mmio_ptr
- ;;
- setf.sig f7 = r3 // Setup for mult scaling of counter
-(p8) cmp.ne p13,p0 = r2,r0 // need itc_jitter compensation, set p13
- ld4 r23 = [r23] // clocksource shift value
- ld8 r24 = [r26] // get clksrc_cycle_last value
-(p9) cmp.eq p13,p0 = 0,r30 // if mmio_ptr, clear p13 jitter control
- ;;
- .pred.rel.mutex p8,p9
- MOV_FROM_ITC(p8, p6, r2, r10) // CPU_TIMER. 36 clocks latency!!!
-(p9) ld8 r2 = [r30] // MMIO_TIMER. Could also have latency issues..
-(p13) ld8 r25 = [r19] // get itc_lastcycle value
- ld8 r9 = [r22],IA64_TIME_SN_SPEC_SNSEC_OFFSET // sec
- ;;
- ld8 r8 = [r22],-IA64_TIME_SN_SPEC_SNSEC_OFFSET // snsec
-(p13) sub r3 = r25,r2 // Diff needed before comparison (thanks davidm)
- ;;
-(p13) cmp.gt.unc p6,p7 = r3,r0 // check if it is less than last. p6,p7 cleared
- sub r10 = r2,r24 // current_cycle - last_cycle
- ;;
-(p6) sub r10 = r25,r24 // time we got was less than last_cycle
-(p7) mov ar.ccv = r25 // more than last_cycle. Prep for cmpxchg
- ;;
-(p7) cmpxchg8.rel r3 = [r19],r2,ar.ccv
- ;;
-(p7) cmp.ne p7,p0 = r25,r3 // if cmpxchg not successful
- ;;
-(p7) sub r10 = r3,r24 // then use new last_cycle instead
- ;;
- and r10 = r10,r14 // Apply mask
- ;;
- setf.sig f8 = r10
- nop.i 123
- ;;
- // fault check takes 5 cycles and we have spare time
-EX(.fail_efault, probe.w.fault r31, 3)
- xmpy.l f8 = f8,f7 // nsec_per_cyc*(counter-last_counter)
- ;;
- getf.sig r2 = f8
- mf
- ;;
- ld4 r10 = [r20] // gtod_lock.sequence
- add r8 = r8,r2 // Add xtime.nsecs
- ;;
- shr.u r8 = r8,r23 // shift by factor
- cmp4.ne p7,p0 = r28,r10
-(p7) br.cond.dpnt.few .time_redo // sequence number changed, redo
- // End critical section.
- // Now r8=tv->tv_nsec and r9=tv->tv_sec
- mov r10 = r0
- movl r2 = 1000000000
- add r23 = IA64_TIMESPEC_TV_NSEC_OFFSET, r31
-(p14) movl r3 = 2361183241434822607 // Prep for / 1000 hack
- ;;
-.time_normalize:
- mov r21 = r8
- cmp.ge p6,p0 = r8,r2
-(p14) shr.u r20 = r8, 3 // We can repeat this if necessary just wasting time
- ;;
-(p14) setf.sig f8 = r20
-(p6) sub r8 = r8,r2
-(p6) add r9 = 1,r9 // two nops before the branch.
-(p14) setf.sig f7 = r3 // Chances for repeats are 1 in 10000 for gettod
-(p6) br.cond.dpnt.few .time_normalize
- ;;
- // Divided by 8 though shift. Now divide by 125
- // The compiler was able to do that with a multiply
- // and a shift and we do the same
-EX(.fail_efault, probe.w.fault r23, 3) // This also costs 5 cycles
-(p14) xmpy.hu f8 = f8, f7 // xmpy has 5 cycles latency so use it
- ;;
-(p14) getf.sig r2 = f8
- ;;
- mov r8 = r0
-(p14) shr.u r21 = r2, 4
- ;;
-EX(.fail_efault, st8 [r31] = r9)
-EX(.fail_efault, st8 [r23] = r21)
- FSYS_RETURN
-.fail_einval:
- mov r8 = EINVAL
- mov r10 = -1
- FSYS_RETURN
-.fail_efault:
- mov r8 = EFAULT
- mov r10 = -1
- FSYS_RETURN
-END(fsys_gettimeofday)
-
-ENTRY(fsys_clock_gettime)
- .prologue
- .altrp b6
- .body
- cmp4.ltu p6, p0 = CLOCK_MONOTONIC, r32
- // Fallback if this is not CLOCK_REALTIME or CLOCK_MONOTONIC
-(p6) br.spnt.few fsys_fallback_syscall
- mov r31 = r33
- shl r30 = r32,15
- br.many .gettime
-END(fsys_clock_gettime)
-
-/*
- * fsys_getcpu doesn't use the third parameter in this implementation. It reads
- * current_thread_info()->cpu and corresponding node in cpu_to_node_map.
- */
-ENTRY(fsys_getcpu)
- .prologue
- .altrp b6
- .body
- ;;
- add r2=TI_FLAGS+IA64_TASK_SIZE,r16
- tnat.nz p6,p0 = r32 // guard against NaT argument
- add r3=TI_CPU+IA64_TASK_SIZE,r16
- ;;
- ld4 r3=[r3] // M r3 = thread_info->cpu
- ld4 r2=[r2] // M r2 = thread_info->flags
-(p6) br.cond.spnt.few .fail_einval // B
- ;;
- tnat.nz p7,p0 = r33 // I guard against NaT argument
-(p7) br.cond.spnt.few .fail_einval // B
- ;;
- cmp.ne p6,p0=r32,r0
- cmp.ne p7,p0=r33,r0
- ;;
-#ifdef CONFIG_NUMA
- movl r17=cpu_to_node_map
- ;;
-EX(.fail_efault, (p6) probe.w.fault r32, 3) // M This takes 5 cycles
-EX(.fail_efault, (p7) probe.w.fault r33, 3) // M This takes 5 cycles
- shladd r18=r3,1,r17
- ;;
- ld2 r20=[r18] // r20 = cpu_to_node_map[cpu]
- and r2 = TIF_ALLWORK_MASK,r2
- ;;
- cmp.ne p8,p0=0,r2
-(p8) br.spnt.many fsys_fallback_syscall
- ;;
- ;;
-EX(.fail_efault, (p6) st4 [r32] = r3)
-EX(.fail_efault, (p7) st2 [r33] = r20)
- mov r8=0
- ;;
-#else
-EX(.fail_efault, (p6) probe.w.fault r32, 3) // M This takes 5 cycles
-EX(.fail_efault, (p7) probe.w.fault r33, 3) // M This takes 5 cycles
- and r2 = TIF_ALLWORK_MASK,r2
- ;;
- cmp.ne p8,p0=0,r2
-(p8) br.spnt.many fsys_fallback_syscall
- ;;
-EX(.fail_efault, (p6) st4 [r32] = r3)
-EX(.fail_efault, (p7) st2 [r33] = r0)
- mov r8=0
- ;;
-#endif
- FSYS_RETURN
-END(fsys_getcpu)
-
-ENTRY(fsys_fallback_syscall)
- .prologue
- .altrp b6
- .body
- /*
- * We only get here from light-weight syscall handlers. Thus, we already
- * know that r15 contains a valid syscall number. No need to re-check.
- */
- adds r17=-1024,r15
- movl r14=sys_call_table
- ;;
- RSM_PSR_I(p0, r26, r27)
- shladd r18=r17,3,r14
- ;;
- ld8 r18=[r18] // load normal (heavy-weight) syscall entry-point
- MOV_FROM_PSR(p0, r29, r26) // read psr (12 cyc load latency)
- mov r27=ar.rsc
- mov r21=ar.fpsr
- mov r26=ar.pfs
-END(fsys_fallback_syscall)
- /* FALL THROUGH */
-GLOBAL_ENTRY(fsys_bubble_down)
- .prologue
- .altrp b6
- .body
- /*
- * We get here for syscalls that don't have a lightweight
- * handler. For those, we need to bubble down into the kernel
- * and that requires setting up a minimal pt_regs structure,
- * and initializing the CPU state more or less as if an
- * interruption had occurred. To make syscall-restarts work,
- * we setup pt_regs such that cr_iip points to the second
- * instruction in syscall_via_break. Decrementing the IP
- * hence will restart the syscall via break and not
- * decrementing IP will return us to the caller, as usual.
- * Note that we preserve the value of psr.pp rather than
- * initializing it from dcr.pp. This makes it possible to
- * distinguish fsyscall execution from other privileged
- * execution.
- *
- * On entry:
- * - normal fsyscall handler register usage, except
- * that we also have:
- * - 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. Fortunately, 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 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 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(fsys_bubble_down)
-
- .rodata
- .align 8
- .globl fsyscall_table
-
- data8 fsys_bubble_down
-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 fsyscall_table + 8*NR_syscalls - .zero, 0