forked from KolibriOS/kolibrios
98 lines
2.4 KiB
PHP
98 lines
2.4 KiB
PHP
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2017. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License. ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 6917 $
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ENOENT equ 2
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EBADF equ 9
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EFAULT equ 14
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;EINVAL equ 22 11 defined in stack.inc
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ENFILE equ 23
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EMFILE equ 24
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FILEOP_CLOSE equ 0
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FILEOP_READ equ 1
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FILEOP_WRITE equ 2
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include "futex.inc"
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iglobal
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align 4
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sys_futex_call:
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dd sys_futex.destroy ;1
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dd sys_futex.wait ;2
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dd sys_futex.wake ;3
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dd sys_futex.requeue ;4
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dd sys_futex.cmp_requeue ;5
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dd sys_futex.wait_bitset ;6
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dd sys_futex.wake_bitset ;7
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endg
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include "pipe.inc"
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iglobal
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align 4
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sys_posix_call:
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dd sys_futex.init ;0 futex_init
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dd sys_futex ;1 futex_destroy
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dd sys_futex ;2 futex_wait
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dd sys_futex ;3 futex_wake
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dd sys_futex ;4 reserved
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dd sys_futex ;5 reserved
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dd sys_futex ;6 reserved
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dd sys_futex ;7 reserved
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dd sys_posix.fail ;8 sys_open
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dd sys_posix.fail ;9 sys_close
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dd sys_posix.fail ;10 sys_read
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dd sys_posix.fail ;11 sys_write
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dd sys_posix.fail ;12 sys_dup3
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dd sys_pipe2 ;13
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.end:
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endg
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align 4
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sys_posix:
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cmp ebx, (sys_posix_call.end-sys_posix_call)/4
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jae .fail
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jmp dword [sys_posix_call+ebx*4]
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.fail:
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mov [esp+SYSCALL_STACK._eax], -EBADF
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ret
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;ssize_t read(int fd, void *buf, size_t count);
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; ecx fd
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; edx buf
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; esi count
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align 4
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sys_read:
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cmp ecx, STDERR_FILENO
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jbe .fail
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cmp ecx, (PROC.pdt_0 - PROC.htab)/4
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jae .fail
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mov edi, [current_process]
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mov ebp, [edi+PROC.htab+ecx*4]
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cmp [ebp+FILED.magic], 'PIPE'
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jne .fail
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cmp [ebp+FILED.handle], ecx
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jne .fail
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mov ebp, [ebp+FILED.file]
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mov eax, [ebp]
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jmp dword [eax+FILEOP_READ*4]
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.fail:
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mov [esp+SYSCALL_STACK._eax], -EBADF
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ret
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