forked from KolibriOS/kolibrios
136 lines
3.3 KiB
PHP
136 lines
3.3 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2022. 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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$Revision$
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ENOENT = 2
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EBADF = 9
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EFAULT = 14
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;EINVAL = 22 11 defined in stack.inc
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ENFILE = 23
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EMFILE = 24
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EPIPE = 32
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FILEOP_CLOSE = 0
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FILEOP_READ = 1
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FILEOP_WRITE = 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_read ;10 read()
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dd sys_write ;11 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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stdcall is_region_userspace, ebp, 4
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jz .fail
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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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test [ebp + FILED.mode], F_READ
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jz .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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;ssize_t write(int fd, const 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_write:
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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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stdcall is_region_userspace, ebp, 4
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jz .fail
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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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test [ebp + FILED.mode], F_WRITE
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jz .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_WRITE*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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