138 lines
3.3 KiB
Plaintext
138 lines
3.3 KiB
Plaintext
(*
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BSD 2-Clause License
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Copyright (c) 2019-2020, Anton Krotov
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All rights reserved.
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*)
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MODULE LINAPI;
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IMPORT SYSTEM, API;
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TYPE
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TP* = API.TP;
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SOFINI* = API.SOFINI;
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VAR
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argc*, envc*: INTEGER;
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libc*, librt*: INTEGER;
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stdout*,
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stdin*,
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stderr* : INTEGER;
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malloc* : PROCEDURE [linux] (size: INTEGER): INTEGER;
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free* : PROCEDURE [linux] (ptr: INTEGER);
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exit* : PROCEDURE [linux] (code: INTEGER);
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puts* : PROCEDURE [linux] (pStr: INTEGER);
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fwrite*,
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fread* : PROCEDURE [linux] (buffer, bytes, blocks, file: INTEGER): INTEGER;
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fopen* : PROCEDURE [linux] (fname, fmode: INTEGER): INTEGER;
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fclose* : PROCEDURE [linux] (file: INTEGER): INTEGER;
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time* : PROCEDURE [linux] (ptr: INTEGER): INTEGER;
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clock_gettime* : PROCEDURE [linux] (clock_id: INTEGER; VAR tp: TP): INTEGER;
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PROCEDURE GetArg* (n: INTEGER; VAR s: ARRAY OF CHAR);
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VAR
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i, len, ptr: INTEGER;
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c: CHAR;
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BEGIN
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i := 0;
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len := LEN(s) - 1;
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IF (0 <= n) & (n <= argc + envc) & (n # argc) & (len > 0) THEN
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SYSTEM.GET(API.MainParam + (n + 1) * SYSTEM.SIZE(INTEGER), ptr);
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REPEAT
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SYSTEM.GET(ptr, c);
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s[i] := c;
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INC(i);
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INC(ptr)
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UNTIL (c = 0X) OR (i = len)
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END;
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s[i] := 0X
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END GetArg;
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PROCEDURE GetEnv* (n: INTEGER; VAR s: ARRAY OF CHAR);
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BEGIN
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IF (0 <= n) & (n < envc) THEN
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GetArg(n + argc + 1, s)
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ELSE
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s[0] := 0X
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END
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END GetEnv;
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PROCEDURE SetFini* (ProcFini: SOFINI);
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BEGIN
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API.SetFini(ProcFini)
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END SetFini;
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PROCEDURE init;
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VAR
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ptr: INTEGER;
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BEGIN
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IF API.MainParam # 0 THEN
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envc := -1;
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SYSTEM.GET(API.MainParam, argc);
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REPEAT
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SYSTEM.GET(API.MainParam + (envc + argc + 3) * SYSTEM.SIZE(INTEGER), ptr);
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INC(envc)
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UNTIL ptr = 0
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ELSE
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envc := 0;
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argc := 0
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END;
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libc := API.libc;
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stdout := API.stdout;
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stdin := API.stdin;
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stderr := API.stderr;
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malloc := API.malloc;
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free := API.free;
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exit := API._exit;
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puts := API.puts;
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fwrite := API.fwrite;
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fread := API.fread;
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fopen := API.fopen;
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fclose := API.fclose;
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time := API.time;
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librt := API.librt;
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clock_gettime := API.clock_gettime
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END init;
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PROCEDURE [stdcall64-] syscall* (rax, rdi, rsi, rdx, r10, r8, r9: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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048H, 08BH, 045H, 010H, (* mov rax, qword [rbp + 16] *)
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048H, 08BH, 07DH, 018H, (* mov rdi, qword [rbp + 24] *)
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048H, 08BH, 075H, 020H, (* mov rsi, qword [rbp + 32] *)
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048H, 08BH, 055H, 028H, (* mov rdx, qword [rbp + 40] *)
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04CH, 08BH, 055H, 030H, (* mov r10, qword [rbp + 48] *)
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04CH, 08BH, 045H, 038H, (* mov r8, qword [rbp + 56] *)
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04CH, 08BH, 04DH, 040H, (* mov r9, qword [rbp + 64] *)
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00FH, 005H, (* syscall *)
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0C9H, (* leave *)
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0C2H, 038H, 000H (* ret 56 *)
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)
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RETURN 0
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END syscall;
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BEGIN
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init
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END LINAPI. |