kolibrios/programs/develop/oberon07/lib/KolibriOS/KOSAPI.ob07

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(*
BSD 2-Clause License
Copyright (c) 2018-2019, Anton Krotov
All rights reserved.
*)
MODULE KOSAPI;
IMPORT SYSTEM;
TYPE
STRING = ARRAY 1024 OF CHAR;
VAR
DLL_INIT: PROCEDURE [stdcall] (entry: INTEGER);
imp_error*: RECORD
proc*, lib*: STRING;
error*: INTEGER
END;
PROCEDURE [stdcall-] sysfunc1* (arg1: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
0CDH, 040H, (* int 64 *)
0C9H, (* leave *)
0C2H, 004H, 000H (* ret 4 *)
)
RETURN 0
END sysfunc1;
PROCEDURE [stdcall-] sysfunc2* (arg1, arg2: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
0CDH, 040H, (* int 64 *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 008H, 000H (* ret 8 *)
)
RETURN 0
END sysfunc2;
PROCEDURE [stdcall-] sysfunc3* (arg1, arg2, arg3: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
0CDH, 040H, (* int 64 *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 00CH, 000H (* ret 12 *)
)
RETURN 0
END sysfunc3;
PROCEDURE [stdcall-] sysfunc4* (arg1, arg2, arg3, arg4: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
0CDH, 040H, (* int 64 *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 010H, 000H (* ret 16 *)
)
RETURN 0
END sysfunc4;
PROCEDURE [stdcall-] sysfunc5* (arg1, arg2, arg3, arg4, arg5: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
056H, (* push esi *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
0CDH, 040H, (* int 64 *)
05EH, (* pop esi *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 014H, 000H (* ret 20 *)
)
RETURN 0
END sysfunc5;
PROCEDURE [stdcall-] sysfunc6* (arg1, arg2, arg3, arg4, arg5, arg6: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
056H, (* push esi *)
057H, (* push edi *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
08BH, 07DH, 01CH, (* mov edi, dword [ebp + 28] *)
0CDH, 040H, (* int 64 *)
05FH, (* pop edi *)
05EH, (* pop esi *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 018H, 000H (* ret 24 *)
)
RETURN 0
END sysfunc6;
PROCEDURE [stdcall-] sysfunc7* (arg1, arg2, arg3, arg4, arg5, arg6, arg7: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
056H, (* push esi *)
057H, (* push edi *)
055H, (* push ebp *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
08BH, 07DH, 01CH, (* mov edi, dword [ebp + 28] *)
08BH, 06DH, 020H, (* mov ebp, dword [ebp + 32] *)
0CDH, 040H, (* int 64 *)
05DH, (* pop ebp *)
05FH, (* pop edi *)
05EH, (* pop esi *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 01CH, 000H (* ret 28 *)
)
RETURN 0
END sysfunc7;
PROCEDURE [stdcall-] sysfunc22* (arg1, arg2: INTEGER; VAR res2: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(
053H, (* push ebx *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
0CDH, 040H, (* int 64 *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
089H, 019H, (* mov dword [ecx], ebx *)
05BH, (* pop ebx *)
0C9H, (* leave *)
0C2H, 00CH, 000H (* ret 12 *)
)
RETURN 0
END sysfunc22;
PROCEDURE mem_commit (adr, size: INTEGER);
VAR
tmp: INTEGER;
BEGIN
FOR tmp := adr TO adr + size - 1 BY 4096 DO
SYSTEM.PUT(tmp, 0)
END
END mem_commit;
PROCEDURE [stdcall] malloc* (size: INTEGER): INTEGER;
VAR
ptr: INTEGER;
BEGIN
SYSTEM.CODE(060H); (* pusha *)
IF sysfunc2(18, 16) > ASR(size, 10) THEN
ptr := sysfunc3(68, 12, size);
IF ptr # 0 THEN
mem_commit(ptr, size)
END
ELSE
ptr := 0
END;
SYSTEM.CODE(061H) (* popa *)
RETURN ptr
END malloc;
PROCEDURE [stdcall] free* (ptr: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(060H); (* pusha *)
IF ptr # 0 THEN
ptr := sysfunc3(68, 13, ptr)
END;
SYSTEM.CODE(061H) (* popa *)
RETURN 0
END free;
PROCEDURE [stdcall] realloc* (ptr, size: INTEGER): INTEGER;
BEGIN
SYSTEM.CODE(060H); (* pusha *)
ptr := sysfunc4(68, 20, size, ptr);
SYSTEM.CODE(061H) (* popa *)
RETURN ptr
END realloc;
PROCEDURE AppAdr (): INTEGER;
VAR
buf: ARRAY 1024 OF CHAR;
a: INTEGER;
BEGIN
a := sysfunc3(9, SYSTEM.ADR(buf), -1);
SYSTEM.GET(SYSTEM.ADR(buf) + 22, a)
RETURN a
END AppAdr;
PROCEDURE GetCommandLine* (): INTEGER;
VAR
param: INTEGER;
BEGIN
SYSTEM.GET(28 + AppAdr(), param)
RETURN param
END GetCommandLine;
PROCEDURE GetName* (): INTEGER;
VAR
name: INTEGER;
BEGIN
SYSTEM.GET(32 + AppAdr(), name)
RETURN name
END GetName;
PROCEDURE [stdcall] dll_init2 (arg1, arg2, arg3, arg4, arg5: INTEGER);
BEGIN
SYSTEM.CODE(
060H, (* pusha *)
08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
0FFH, 0D6H, (* call esi *)
061H, (* popa *)
0C9H, (* leave *)
0C2H, 014H, 000H (* ret 20 *)
)
END dll_init2;
PROCEDURE GetProcAdr* (name: ARRAY OF CHAR; lib: INTEGER): INTEGER;
VAR
cur, procname, adr: INTEGER;
PROCEDURE streq (str1, str2: INTEGER): BOOLEAN;
VAR
c1, c2: CHAR;
BEGIN
REPEAT
SYSTEM.GET(str1, c1);
SYSTEM.GET(str2, c2);
INC(str1);
INC(str2)
UNTIL (c1 # c2) OR (c1 = 0X)
RETURN c1 = c2
END streq;
BEGIN
adr := 0;
IF (lib # 0) & (name # "") THEN
cur := lib;
REPEAT
SYSTEM.GET(cur, procname);
INC(cur, 8)
UNTIL (procname = 0) OR streq(procname, SYSTEM.ADR(name[0]));
IF procname # 0 THEN
SYSTEM.GET(cur - 4, adr)
END
END
RETURN adr
END GetProcAdr;
PROCEDURE init (dll: INTEGER);
VAR
lib_init: INTEGER;
BEGIN
lib_init := GetProcAdr("lib_init", dll);
IF lib_init # 0 THEN
DLL_INIT(lib_init)
END;
lib_init := GetProcAdr("START", dll);
IF lib_init # 0 THEN
DLL_INIT(lib_init)
END
END init;
PROCEDURE GetStr (adr, i: INTEGER; VAR str: STRING);
VAR
c: CHAR;
BEGIN
REPEAT
SYSTEM.GET(adr, c); INC(adr);
str[i] := c; INC(i)
UNTIL c = 0X
END GetStr;
PROCEDURE [stdcall] dll_Load* (import_table: INTEGER): INTEGER;
VAR
imp, lib, exp, proc, res: INTEGER;
fail, done: BOOLEAN;
procname, libname: STRING;
BEGIN
SYSTEM.CODE(060H); (* pusha *)
fail := FALSE;
done := FALSE;
res := 0;
libname := "/rd/1/lib/";
REPEAT
SYSTEM.GET(import_table, imp);
IF imp # 0 THEN
SYSTEM.GET(import_table + 4, lib);
GetStr(lib, 10, libname);
exp := sysfunc3(68, 19, SYSTEM.ADR(libname[0]));
fail := exp = 0;
ELSE
done := TRUE
END;
IF fail THEN
done := TRUE;
imp_error.proc := "";
imp_error.lib := libname;
imp_error.error := 1
END;
IF (imp # 0) & ~fail THEN
REPEAT
SYSTEM.GET(imp, proc);
IF proc # 0 THEN
GetStr(proc, 0, procname);
proc := GetProcAdr(procname, exp);
IF proc # 0 THEN
SYSTEM.PUT(imp, proc);
INC(imp, 4)
ELSE
imp_error.proc := procname;
imp_error.lib := libname;
imp_error.error := 2
END
END
UNTIL proc = 0;
init(exp);
INC(import_table, 8)
END
UNTIL done;
IF fail THEN
res := 1
END;
import_table := res;
SYSTEM.CODE(061H) (* popa *)
RETURN import_table
END dll_Load;
PROCEDURE [stdcall] dll_Init (entry: INTEGER);
BEGIN
SYSTEM.CODE(060H); (* pusha *)
IF entry # 0 THEN
dll_init2(SYSTEM.ADR(malloc), SYSTEM.ADR(free), SYSTEM.ADR(realloc), SYSTEM.ADR(dll_Load), entry)
END;
SYSTEM.CODE(061H); (* popa *)
END dll_Init;
PROCEDURE LoadLib* (name: ARRAY OF CHAR): INTEGER;
VAR
Lib: INTEGER;
BEGIN
DLL_INIT := dll_Init;
Lib := sysfunc3(68, 19, SYSTEM.ADR(name[0]));
IF Lib # 0 THEN
init(Lib)
END
RETURN Lib
END LoadLib;
PROCEDURE _init*;
BEGIN
DLL_INIT := dll_Init;
imp_error.lib := "";
imp_error.proc := "";
imp_error.error := 0
END _init;
END KOSAPI.