361 lines
11 KiB
NASM
361 lines
11 KiB
NASM
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; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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; syscall.asm
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; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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; Forrest Yu, 2005
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; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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%include "sconst.inc"
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_NR_get_ticks equ 0 ; 要跟 global.c 中 sys_call_table 的定义相对应！
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_NR_get_pid equ 1 ; //add by visual 2016.4.6
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_NR_kmalloc equ 2 ; //add by visual 2016.4.6
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_NR_kmalloc_4k equ 3 ; //add by visual 2016.4.7
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_NR_malloc equ 4 ; //add by visual 2016.4.7
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_NR_malloc_4k equ 5 ; //add by visual 2016.4.7
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_NR_free equ 6 ; //add by visual 2016.4.7
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_NR_free_4k equ 7 ; //add by visual 2016.4.7
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_NR_fork equ 8 ; //add by visual 2016.4.8
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_NR_pthread equ 9 ; //add by visual 2016.4.11
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_NR_udisp_int equ 10 ; //add by visual 2016.5.16
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_NR_udisp_str equ 11 ; //add by visual 2016.5.16
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_NR_exec equ 12 ; //add by visual 2016.5.16
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_NR_yield equ 13 ; //added by xw, 17/12
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_NR_sleep equ 14 ; //added by xw, 17/12
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_NR_print_E equ 15 ; //added by xw, 18/4/27
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_NR_print_F equ 16 ; //added by xw, 18/4/27
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_NR_open equ 17 ; //added by xw, 18/6/18
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_NR_close equ 18 ; //added by xw, 18/6/18
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_NR_read equ 19 ; //added by xw, 18/6/18
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_NR_write equ 20 ; //added by xw, 18/6/18
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_NR_lseek equ 21 ; //added by xw, 18/6/18
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_NR_unlink equ 22 ; //added by xw, 18/6/18
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_NR_create equ 23 ; //added by mingxuan 2019-5-17
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_NR_delete equ 24 ; //added by mingxuan 2019-5-17
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_NR_opendir equ 25 ; //added by mingxuan 2019-5-17
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_NR_createdir equ 26 ; //added by mingxuan 2019-5-17
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_NR_deletedir equ 27 ; //added by mingxuan 2019-5-17
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INT_VECTOR_SYS_CALL equ 0x90
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; 导出符号
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global get_ticks
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global get_pid ; //add by visual 2016.4.6
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global kmalloc ; //add by visual 2016.4.6
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global kmalloc_4k ; //add by visual 2016.4.7
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global malloc ; //add by visual 2016.4.7
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global malloc_4k ; //add by visual 2016.4.7
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global free ; //add by visual 2016.4.7
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global free_4k ; //add by visual 2016.4.7
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global fork ; //add by visual 2016.4.8
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global pthread ; //add by visual 2016.4.11
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global udisp_int ; //add by visual 2016.5.16
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global udisp_str ; //add by visual 2016.5.16
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global exec ; //add by visual 2016.5.16
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global yield ; //added by xw
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global sleep ; //added by xw
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global print_E ; //added by xw
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global print_F ; //added by xw
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global open ; //added by xw, 18/6/18
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global close ; //added by xw, 18/6/18
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global read ; //added by xw, 18/6/18
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global write ; //added by xw, 18/6/18
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global lseek ; //added by xw, 18/6/18
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global unlink ; //added by xw, 18/6/19
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global create ; //added by mingxuan 2019-5-17
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global delete ; //added by mingxuan 2019-5-17
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global opendir ; //added by mingxuan 2019-5-17
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global createdir ; //added by mingxuan 2019-5-17
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global deletedir ; //added by mingxuan 2019-5-17
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bits 32
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[section .text]
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; ====================================================================
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; get_ticks
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; ====================================================================
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get_ticks:
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mov eax, _NR_get_ticks
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int INT_VECTOR_SYS_CALL
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ret
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; ====================================================================
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; get_pid //add by visual 2016.4.6
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; ====================================================================
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get_pid:
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mov eax, _NR_get_pid
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int INT_VECTOR_SYS_CALL
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ret
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; ; ====================================================================
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; ; kmalloc //add by visual 2016.4.6
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; ; ====================================================================
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; kmalloc:
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; push ebx
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; mov ebx,[esp+4] ; 将C函数调用时传来的参数放到ebx里!!
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; mov eax, _NR_kmalloc
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ; ====================================================================
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; ; kmalloc_4k //add by visual 2016.4.7
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; ; ====================================================================
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; kmalloc_4k:
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; push ebx
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; mov ebx,[esp+4] ; 将C函数调用时传来的参数放到ebx里!!111
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; mov eax, _NR_kmalloc_4k
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ; ====================================================================
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; ; malloc //add by visual 2016.4.7
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; ; ====================================================================
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; malloc:
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; push ebx
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; mov ebx,[esp+4] ; 将C函数调用时传来的参数放到ebx里!!111
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; mov eax, _NR_malloc
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ; ====================================================================
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; ; malloc_4k //add by visual 2016.4.7
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; ; ====================================================================
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; malloc_4k:
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; push ebx
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; mov ebx,[esp+4] ; 将C函数调用时传来的参数放到ebx里!!111
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; mov eax, _NR_malloc_4k
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ; ====================================================================
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; ; free //add by visual 2016.4.7
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; ; ====================================================================
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; free:
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; push ebx
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; mov ebx,[esp+4] ; 将C函数调用时传来的参数放到ebx里!!111
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; mov eax, _NR_free
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ; ====================================================================
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; ; free_4k //add by visual 2016.4.7
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; ; ====================================================================
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; free_4k:
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; push ebx
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; mov ebx,[esp+4] ; 将C函数调用时传来的参数放到ebx里!!111
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; mov eax, _NR_free_4k
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ====================================================================
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; fork //add by visual 2016.4.8
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; ====================================================================
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fork:
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mov eax, _NR_fork
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int INT_VECTOR_SYS_CALL
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ret
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; ====================================================================
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; pthread //add by visual 2016.4.11
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; ====================================================================
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pthread:
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push ebx
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mov ebx,[esp+8]
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mov eax, _NR_pthread
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; udisp_int //add by visual 2016.5.16
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; ====================================================================
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udisp_int:
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push ebx
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mov ebx,[esp+8]
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mov eax, _NR_udisp_int
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; udisp_str //add by visual 2016.5.16
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; ====================================================================
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udisp_str:
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push ebx
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mov ebx,[esp+8]
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mov eax, _NR_udisp_str
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; exec //add by visual 2016.5.16
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; ====================================================================
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exec:
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push ebx
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mov ebx,[esp+8]
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mov eax, _NR_exec
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; yield //added by xw
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; ====================================================================
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yield:
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mov eax, _NR_yield
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int INT_VECTOR_SYS_CALL
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ret
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; ====================================================================
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; sleep //added by xw
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; ====================================================================
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sleep:
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push ebx
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mov ebx,[esp+8]
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mov eax, _NR_sleep
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ; ====================================================================
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; ; print_E //added by xw
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; ; ====================================================================
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; print_E:
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; push ebx
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; mov ebx,[esp+4]
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; mov eax, _NR_print_E
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ; ====================================================================
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; ; print_F //added by xw
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; ; ====================================================================
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; print_F:
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; push ebx
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; mov ebx,[esp+4]
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; mov eax, _NR_print_F
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; int INT_VECTOR_SYS_CALL
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; pop ebx
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; ret
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; ====================================================================
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; open //added by xw, 18/6/18
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; ====================================================================
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; open has more than one parameter, to pass them, we save the esp to ebx,
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; and ebx will be passed into kernel as usual. In kernel, we use the saved
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; esp in user space to get the number of parameters and the values of them.
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open:
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push ebx
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mov ebx, esp
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mov eax, _NR_open
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; close //added by xw, 18/6/18
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; ====================================================================
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; close has only one parameter, but we can still use this method.
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close:
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push ebx
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mov ebx, esp
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mov eax, _NR_close
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; read //added by xw, 18/6/18
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; ====================================================================
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read:
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push ebx
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mov ebx, esp
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mov eax, _NR_read
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; write //added by xw, 18/6/18
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; ====================================================================
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write:
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push ebx
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mov ebx, esp
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mov eax, _NR_write
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; lseek //added by xw, 18/6/18
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; ====================================================================
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lseek:
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push ebx
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mov ebx, esp
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mov eax, _NR_lseek
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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; ====================================================================
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; unlink //added by xw, 18/6/18
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; ====================================================================
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unlink:
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push ebx
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mov ebx, esp
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mov eax, _NR_unlink
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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;和FAT32有关的系统调用
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create:
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push ebx
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mov ebx, esp
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mov eax, _NR_create
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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delete:
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push ebx
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mov ebx, esp
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mov eax, _NR_delete
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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opendir:
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push ebx
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mov ebx, esp
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mov eax, _NR_opendir
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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createdir:
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push ebx
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mov ebx, esp
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mov eax, _NR_createdir
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret
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deletedir:
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push ebx
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mov ebx, esp
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mov eax, _NR_deletedir
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int INT_VECTOR_SYS_CALL
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pop ebx
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ret |