2005-04-17 06:20:36 +08:00
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
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* Copyright (C) 2001 MIPS Technologies, Inc.
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*/
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#include <linux/errno.h>
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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2006-07-07 21:07:18 +08:00
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#include <asm/irqflags.h>
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2005-04-17 06:20:36 +08:00
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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#include <asm/stackframe.h>
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2005-09-10 04:32:31 +08:00
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#include <asm/asm-offsets.h>
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2005-04-17 06:20:36 +08:00
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#include <asm/sysmips.h>
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#include <asm/thread_info.h>
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#include <asm/unistd.h>
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#include <asm/war.h>
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#ifndef CONFIG_BINFMT_ELF32
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/* Neither O32 nor N32, so define handle_sys here */
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#define handle_sys64 handle_sys
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#endif
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.align 5
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NESTED(handle_sys64, PT_SIZE, sp)
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#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
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/*
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* When 32-bit compatibility is configured scall_o32.S
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* already did this.
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*/
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.set noat
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SAVE_SOME
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2006-09-26 22:43:40 +08:00
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TRACE_IRQS_ON_RELOAD
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2005-04-17 06:20:36 +08:00
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STI
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.set at
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#endif
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dsubu t0, v0, __NR_64_Linux # check syscall number
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sltiu t0, t0, __NR_64_Linux_syscalls + 1
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#if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
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ld t1, PT_EPC(sp) # skip syscall on return
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daddiu t1, 4 # skip to next instruction
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sd t1, PT_EPC(sp)
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#endif
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beqz t0, illegal_syscall
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dsll t0, v0, 3 # offset into table
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ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0)
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# syscall routine
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sd a3, PT_R26(sp) # save a3 for syscall restarting
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li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
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LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
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and t0, t1, t0
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bnez t0, syscall_trace_entry
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jalr t2 # Do The Real Thing (TM)
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li t0, -EMAXERRNO - 1 # error?
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sltu t0, t0, v0
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sd t0, PT_R7(sp) # set error flag
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beqz t0, 1f
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dnegu v0 # error
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sd v0, PT_R0(sp) # set flag for syscall
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# restarting
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1: sd v0, PT_R2(sp) # result
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n64_syscall_exit:
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local_irq_disable # make sure need_resched and
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# signals dont change between
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# sampling and return
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LONG_L a2, TI_FLAGS($28) # current->work
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li t0, _TIF_ALLWORK_MASK
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and t0, a2, t0
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bnez t0, n64_syscall_exit_work
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j restore_partial
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n64_syscall_exit_work:
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j syscall_exit_work_partial
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/* ------------------------------------------------------------------------ */
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syscall_trace_entry:
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SAVE_STATIC
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move s0, t2
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move a0, sp
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li a1, 0
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jal do_syscall_trace
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2005-12-01 00:24:57 +08:00
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move t0, s0
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RESTORE_STATIC
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2005-04-17 06:20:36 +08:00
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ld a0, PT_R4(sp) # Restore argument registers
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ld a1, PT_R5(sp)
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ld a2, PT_R6(sp)
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ld a3, PT_R7(sp)
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ld a4, PT_R8(sp)
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ld a5, PT_R9(sp)
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2005-12-01 00:24:57 +08:00
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jalr t0
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2005-04-17 06:20:36 +08:00
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li t0, -EMAXERRNO - 1 # error?
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sltu t0, t0, v0
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sd t0, PT_R7(sp) # set error flag
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beqz t0, 1f
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dnegu v0 # error
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sd v0, PT_R0(sp) # set flag for syscall restarting
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1: sd v0, PT_R2(sp) # result
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j syscall_exit
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illegal_syscall:
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/* This also isn't a 64-bit syscall, throw an error. */
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2008-10-25 00:17:22 +08:00
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li v0, ENOSYS # error
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2005-04-17 06:20:36 +08:00
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sd v0, PT_R2(sp)
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li t0, 1 # set error flag
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sd t0, PT_R7(sp)
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j n64_syscall_exit
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END(handle_sys64)
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LEAF(mips_atomic_set)
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andi v0, a1, 3 # must be word aligned
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bnez v0, bad_alignment
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LONG_L v1, TI_ADDR_LIMIT($28) # in legal address range?
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LONG_ADDIU a0, a1, 4
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or a0, a0, a1
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and a0, a0, v1
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bltz a0, bad_address
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#ifdef CONFIG_CPU_HAS_LLSC
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/* Ok, this is the ll/sc case. World is sane :-) */
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1: ll v0, (a1)
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move a0, a2
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2: sc a0, (a1)
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#if R10000_LLSC_WAR
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beqzl a0, 1b
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#else
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beqz a0, 1b
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#endif
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.section __ex_table,"a"
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PTR 1b, bad_stack
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PTR 2b, bad_stack
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.previous
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#else
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sw a1, 16(sp)
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sw a2, 20(sp)
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move a0, sp
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move a2, a1
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li a1, 1
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jal do_page_fault
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lw a1, 16(sp)
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lw a2, 20(sp)
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/*
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* At this point the page should be readable and writable unless
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* there was no more memory available.
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*/
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1: lw v0, (a1)
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2: sw a2, (a1)
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.section __ex_table,"a"
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PTR 1b, no_mem
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PTR 2b, no_mem
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.previous
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#endif
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sd zero, PT_R7(sp) # success
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sd v0, PT_R2(sp) # result
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2005-11-29 21:01:01 +08:00
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j n64_syscall_exit # continue like a normal syscall
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2005-04-17 06:20:36 +08:00
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no_mem: li v0, -ENOMEM
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jr ra
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bad_address:
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li v0, -EFAULT
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jr ra
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bad_alignment:
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li v0, -EINVAL
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jr ra
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END(mips_atomic_set)
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LEAF(sys_sysmips)
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beq a0, MIPS_ATOMIC_SET, mips_atomic_set
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j _sys_sysmips
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END(sys_sysmips)
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.align 3
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sys_call_table:
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PTR sys_read /* 5000 */
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PTR sys_write
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PTR sys_open
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PTR sys_close
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PTR sys_newstat
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PTR sys_newfstat /* 5005 */
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PTR sys_newlstat
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PTR sys_poll
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PTR sys_lseek
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PTR old_mmap
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PTR sys_mprotect /* 5010 */
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PTR sys_munmap
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PTR sys_brk
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PTR sys_rt_sigaction
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PTR sys_rt_sigprocmask
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PTR sys_ioctl /* 5015 */
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PTR sys_pread64
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PTR sys_pwrite64
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PTR sys_readv
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PTR sys_writev
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PTR sys_access /* 5020 */
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2008-07-20 20:16:46 +08:00
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PTR sysm_pipe
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2005-04-17 06:20:36 +08:00
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PTR sys_select
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PTR sys_sched_yield
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PTR sys_mremap
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PTR sys_msync /* 5025 */
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PTR sys_mincore
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PTR sys_madvise
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PTR sys_shmget
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PTR sys_shmat
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PTR sys_shmctl /* 5030 */
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PTR sys_dup
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PTR sys_dup2
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PTR sys_pause
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PTR sys_nanosleep
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PTR sys_getitimer /* 5035 */
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PTR sys_setitimer
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PTR sys_alarm
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PTR sys_getpid
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PTR sys_sendfile64
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PTR sys_socket /* 5040 */
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PTR sys_connect
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PTR sys_accept
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PTR sys_sendto
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PTR sys_recvfrom
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PTR sys_sendmsg /* 5045 */
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PTR sys_recvmsg
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PTR sys_shutdown
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PTR sys_bind
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PTR sys_listen
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PTR sys_getsockname /* 5050 */
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PTR sys_getpeername
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PTR sys_socketpair
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PTR sys_setsockopt
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PTR sys_getsockopt
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PTR sys_clone /* 5055 */
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PTR sys_fork
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PTR sys_execve
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PTR sys_exit
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PTR sys_wait4
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PTR sys_kill /* 5060 */
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PTR sys_newuname
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PTR sys_semget
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PTR sys_semop
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PTR sys_semctl
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PTR sys_shmdt /* 5065 */
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PTR sys_msgget
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PTR sys_msgsnd
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PTR sys_msgrcv
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PTR sys_msgctl
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PTR sys_fcntl /* 5070 */
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PTR sys_flock
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PTR sys_fsync
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PTR sys_fdatasync
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PTR sys_truncate
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PTR sys_ftruncate /* 5075 */
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PTR sys_getdents
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PTR sys_getcwd
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PTR sys_chdir
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PTR sys_fchdir
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PTR sys_rename /* 5080 */
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PTR sys_mkdir
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PTR sys_rmdir
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PTR sys_creat
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PTR sys_link
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PTR sys_unlink /* 5085 */
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PTR sys_symlink
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PTR sys_readlink
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PTR sys_chmod
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PTR sys_fchmod
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PTR sys_chown /* 5090 */
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PTR sys_fchown
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PTR sys_lchown
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PTR sys_umask
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PTR sys_gettimeofday
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PTR sys_getrlimit /* 5095 */
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PTR sys_getrusage
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PTR sys_sysinfo
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PTR sys_times
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PTR sys_ptrace
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PTR sys_getuid /* 5100 */
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PTR sys_syslog
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PTR sys_getgid
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PTR sys_setuid
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PTR sys_setgid
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PTR sys_geteuid /* 5105 */
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PTR sys_getegid
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PTR sys_setpgid
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PTR sys_getppid
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PTR sys_getpgrp
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PTR sys_setsid /* 5110 */
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PTR sys_setreuid
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PTR sys_setregid
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PTR sys_getgroups
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PTR sys_setgroups
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PTR sys_setresuid /* 5115 */
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PTR sys_getresuid
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PTR sys_setresgid
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PTR sys_getresgid
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PTR sys_getpgid
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PTR sys_setfsuid /* 5120 */
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PTR sys_setfsgid
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PTR sys_getsid
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PTR sys_capget
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PTR sys_capset
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PTR sys_rt_sigpending /* 5125 */
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PTR sys_rt_sigtimedwait
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PTR sys_rt_sigqueueinfo
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PTR sys_rt_sigsuspend
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PTR sys_sigaltstack
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PTR sys_utime /* 5130 */
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PTR sys_mknod
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PTR sys_personality
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PTR sys_ustat
|
|
|
|
|
PTR sys_statfs
|
|
|
|
|
PTR sys_fstatfs /* 5135 */
|
|
|
|
|
PTR sys_sysfs
|
|
|
|
|
PTR sys_getpriority
|
|
|
|
|
PTR sys_setpriority
|
|
|
|
|
PTR sys_sched_setparam
|
|
|
|
|
PTR sys_sched_getparam /* 5140 */
|
|
|
|
|
PTR sys_sched_setscheduler
|
|
|
|
|
PTR sys_sched_getscheduler
|
|
|
|
|
PTR sys_sched_get_priority_max
|
|
|
|
|
PTR sys_sched_get_priority_min
|
|
|
|
|
PTR sys_sched_rr_get_interval /* 5145 */
|
|
|
|
|
PTR sys_mlock
|
|
|
|
|
PTR sys_munlock
|
|
|
|
|
PTR sys_mlockall
|
|
|
|
|
PTR sys_munlockall
|
|
|
|
|
PTR sys_vhangup /* 5150 */
|
|
|
|
|
PTR sys_pivot_root
|
|
|
|
|
PTR sys_sysctl
|
|
|
|
|
PTR sys_prctl
|
|
|
|
|
PTR sys_adjtimex
|
|
|
|
|
PTR sys_setrlimit /* 5155 */
|
|
|
|
|
PTR sys_chroot
|
|
|
|
|
PTR sys_sync
|
|
|
|
|
PTR sys_acct
|
|
|
|
|
PTR sys_settimeofday
|
|
|
|
|
PTR sys_mount /* 5160 */
|
|
|
|
|
PTR sys_umount
|
|
|
|
|
PTR sys_swapon
|
|
|
|
|
PTR sys_swapoff
|
|
|
|
|
PTR sys_reboot
|
|
|
|
|
PTR sys_sethostname /* 5165 */
|
|
|
|
|
PTR sys_setdomainname
|
|
|
|
|
PTR sys_ni_syscall /* was create_module */
|
|
|
|
|
PTR sys_init_module
|
|
|
|
|
PTR sys_delete_module
|
|
|
|
|
PTR sys_ni_syscall /* 5170, was get_kernel_syms */
|
|
|
|
|
PTR sys_ni_syscall /* was query_module */
|
|
|
|
|
PTR sys_quotactl
|
|
|
|
|
PTR sys_nfsservctl
|
|
|
|
|
PTR sys_ni_syscall /* res. for getpmsg */
|
|
|
|
|
PTR sys_ni_syscall /* 5175 for putpmsg */
|
|
|
|
|
PTR sys_ni_syscall /* res. for afs_syscall */
|
|
|
|
|
PTR sys_ni_syscall /* res. for security */
|
|
|
|
|
PTR sys_gettid
|
|
|
|
|
PTR sys_readahead
|
|
|
|
|
PTR sys_setxattr /* 5180 */
|
|
|
|
|
PTR sys_lsetxattr
|
|
|
|
|
PTR sys_fsetxattr
|
|
|
|
|
PTR sys_getxattr
|
|
|
|
|
PTR sys_lgetxattr
|
|
|
|
|
PTR sys_fgetxattr /* 5185 */
|
|
|
|
|
PTR sys_listxattr
|
|
|
|
|
PTR sys_llistxattr
|
|
|
|
|
PTR sys_flistxattr
|
|
|
|
|
PTR sys_removexattr
|
|
|
|
|
PTR sys_lremovexattr /* 5190 */
|
|
|
|
|
PTR sys_fremovexattr
|
|
|
|
|
PTR sys_tkill
|
|
|
|
|
PTR sys_ni_syscall
|
|
|
|
|
PTR sys_futex
|
|
|
|
|
PTR sys_sched_setaffinity /* 5195 */
|
|
|
|
|
PTR sys_sched_getaffinity
|
|
|
|
|
PTR sys_cacheflush
|
|
|
|
|
PTR sys_cachectl
|
|
|
|
|
PTR sys_sysmips
|
|
|
|
|
PTR sys_io_setup /* 5200 */
|
|
|
|
|
PTR sys_io_destroy
|
|
|
|
|
PTR sys_io_getevents
|
|
|
|
|
PTR sys_io_submit
|
|
|
|
|
PTR sys_io_cancel
|
|
|
|
|
PTR sys_exit_group /* 5205 */
|
|
|
|
|
PTR sys_lookup_dcookie
|
|
|
|
|
PTR sys_epoll_create
|
|
|
|
|
PTR sys_epoll_ctl
|
|
|
|
|
PTR sys_epoll_wait
|
|
|
|
|
PTR sys_remap_file_pages /* 5210 */
|
|
|
|
|
PTR sys_rt_sigreturn
|
|
|
|
|
PTR sys_set_tid_address
|
|
|
|
|
PTR sys_restart_syscall
|
|
|
|
|
PTR sys_semtimedop
|
|
|
|
|
PTR sys_fadvise64_64 /* 5215 */
|
|
|
|
|
PTR sys_timer_create
|
|
|
|
|
PTR sys_timer_settime
|
|
|
|
|
PTR sys_timer_gettime
|
|
|
|
|
PTR sys_timer_getoverrun
|
|
|
|
|
PTR sys_timer_delete /* 5220 */
|
|
|
|
|
PTR sys_clock_settime
|
|
|
|
|
PTR sys_clock_gettime
|
|
|
|
|
PTR sys_clock_getres
|
|
|
|
|
PTR sys_clock_nanosleep
|
|
|
|
|
PTR sys_tgkill /* 5225 */
|
|
|
|
|
PTR sys_utimes
|
|
|
|
|
PTR sys_mbind
|
|
|
|
|
PTR sys_ni_syscall /* sys_get_mempolicy */
|
|
|
|
|
PTR sys_ni_syscall /* sys_set_mempolicy */
|
|
|
|
|
PTR sys_mq_open /* 5230 */
|
|
|
|
|
PTR sys_mq_unlink
|
|
|
|
|
PTR sys_mq_timedsend
|
|
|
|
|
PTR sys_mq_timedreceive
|
|
|
|
|
PTR sys_mq_notify
|
|
|
|
|
PTR sys_mq_getsetattr /* 5235 */
|
|
|
|
|
PTR sys_ni_syscall /* sys_vserver */
|
|
|
|
|
PTR sys_waitid
|
|
|
|
|
PTR sys_ni_syscall /* available, was setaltroot */
|
|
|
|
|
PTR sys_add_key
|
|
|
|
|
PTR sys_request_key /* 5240 */
|
|
|
|
|
PTR sys_keyctl
|
2005-04-14 01:43:59 +08:00
|
|
|
PTR sys_set_thread_area
|
2005-07-13 19:48:45 +08:00
|
|
|
PTR sys_inotify_init
|
|
|
|
|
PTR sys_inotify_add_watch
|
|
|
|
|
PTR sys_inotify_rm_watch /* 5245 */
|
2006-02-08 21:38:50 +08:00
|
|
|
PTR sys_migrate_pages
|
|
|
|
|
PTR sys_openat
|
|
|
|
|
PTR sys_mkdirat
|
|
|
|
|
PTR sys_mknodat
|
|
|
|
|
PTR sys_fchownat /* 5250 */
|
|
|
|
|
PTR sys_futimesat
|
|
|
|
|
PTR sys_newfstatat
|
|
|
|
|
PTR sys_unlinkat
|
|
|
|
|
PTR sys_renameat
|
|
|
|
|
PTR sys_linkat /* 5255 */
|
|
|
|
|
PTR sys_symlinkat
|
|
|
|
|
PTR sys_readlinkat
|
|
|
|
|
PTR sys_fchmodat
|
|
|
|
|
PTR sys_faccessat
|
|
|
|
|
PTR sys_pselect6 /* 5260 */
|
|
|
|
|
PTR sys_ppoll
|
|
|
|
|
PTR sys_unshare
|
2006-03-31 16:27:20 +08:00
|
|
|
PTR sys_splice
|
2006-04-01 14:49:21 +08:00
|
|
|
PTR sys_sync_file_range
|
2006-04-15 17:16:19 +08:00
|
|
|
PTR sys_tee /* 5265 */
|
2006-07-02 23:31:14 +08:00
|
|
|
PTR sys_vmsplice
|
|
|
|
|
PTR sys_move_pages
|
2006-09-06 21:42:02 +08:00
|
|
|
PTR sys_set_robust_list
|
|
|
|
|
PTR sys_get_robust_list
|
2006-10-18 21:14:55 +08:00
|
|
|
PTR sys_kexec_load /* 5270 */
|
2006-10-30 05:07:40 +08:00
|
|
|
PTR sys_getcpu
|
2007-02-25 05:15:11 +08:00
|
|
|
PTR sys_epoll_pwait
|
2007-03-07 01:04:49 +08:00
|
|
|
PTR sys_ioprio_set
|
|
|
|
|
PTR sys_ioprio_get
|
2007-05-29 22:29:40 +08:00
|
|
|
PTR sys_utimensat /* 5275 */
|
|
|
|
|
PTR sys_signalfd
|
timerfd: new timerfd API
This is the new timerfd API as it is implemented by the following patch:
int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
const struct itimerspec *utmr,
struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);
The timerfd_create() API creates an un-programmed timerfd fd. The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.
The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).
The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter. Otherwise it's a relative time.
The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.
Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface). Here's a simple test program I used to
exercise the new timerfd APIs:
http://www.xmailserver.org/timerfd-test2.c
[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 14:27:26 +08:00
|
|
|
PTR sys_ni_syscall
|
2007-05-29 22:29:40 +08:00
|
|
|
PTR sys_eventfd
|
2007-07-26 10:38:24 +08:00
|
|
|
PTR sys_fallocate
|
2008-02-19 05:02:37 +08:00
|
|
|
PTR sys_timerfd_create /* 5280 */
|
|
|
|
|
PTR sys_timerfd_gettime
|
|
|
|
|
PTR sys_timerfd_settime
|
2008-07-31 18:16:43 +08:00
|
|
|
PTR sys_signalfd4
|
|
|
|
|
PTR sys_eventfd2
|
|
|
|
|
PTR sys_epoll_create1 /* 5285 */
|
|
|
|
|
PTR sys_dup3
|
|
|
|
|
PTR sys_pipe2
|
|
|
|
|
PTR sys_inotify_init1
|
2007-03-07 01:04:49 +08:00
|
|
|
.size sys_call_table,.-sys_call_table
|