123 lines
2.3 KiB
Plaintext
123 lines
2.3 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 API;
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IMPORT SYSTEM;
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CONST
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eol* = 0AX;
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BIT_DEPTH* = 64;
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RTLD_LAZY = 1;
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TYPE
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SOFINI = PROCEDURE;
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VAR
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MainParam*, libc*: INTEGER;
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dlopen* : PROCEDURE [linux] (filename, flag: INTEGER): INTEGER;
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dlsym* : PROCEDURE [linux] (handle, symbol: INTEGER): INTEGER;
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exit*,
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exit_thread* : PROCEDURE [linux] (code: INTEGER);
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puts : PROCEDURE [linux] (pStr: INTEGER);
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malloc : PROCEDURE [linux] (size: INTEGER): INTEGER;
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free : PROCEDURE [linux] (ptr: INTEGER);
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fini: SOFINI;
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PROCEDURE DebugMsg* (lpText, lpCaption: INTEGER);
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BEGIN
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puts(lpCaption);
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puts(lpText)
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END DebugMsg;
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PROCEDURE _NEW* (size: INTEGER): INTEGER;
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VAR
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res, ptr, words: INTEGER;
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BEGIN
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res := malloc(size);
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IF res # 0 THEN
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ptr := res;
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words := size DIV SYSTEM.SIZE(INTEGER);
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WHILE words > 0 DO
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SYSTEM.PUT(ptr, 0);
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INC(ptr, SYSTEM.SIZE(INTEGER));
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DEC(words)
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END
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END
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RETURN res
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END _NEW;
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PROCEDURE _DISPOSE* (p: INTEGER): INTEGER;
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BEGIN
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free(p)
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RETURN 0
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END _DISPOSE;
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PROCEDURE GetSym (lib: INTEGER; name: ARRAY OF CHAR; VarAdr: INTEGER);
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VAR
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sym: INTEGER;
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BEGIN
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sym := dlsym(lib, SYSTEM.ADR(name[0]));
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ASSERT(sym # 0);
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SYSTEM.PUT(VarAdr, sym)
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END GetSym;
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PROCEDURE init* (sp, code: INTEGER);
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BEGIN
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fini := NIL;
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SYSTEM.GET(code - 1000H - SYSTEM.SIZE(INTEGER) * 2, dlopen);
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SYSTEM.GET(code - 1000H - SYSTEM.SIZE(INTEGER), dlsym);
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MainParam := sp;
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libc := dlopen(SYSTEM.SADR("libc.so.6"), RTLD_LAZY);
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GetSym(libc, "exit", SYSTEM.ADR(exit_thread));
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exit := exit_thread;
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GetSym(libc, "puts", SYSTEM.ADR(puts));
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GetSym(libc, "malloc", SYSTEM.ADR(malloc));
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GetSym(libc, "free", SYSTEM.ADR(free));
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END init;
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PROCEDURE dllentry* (hinstDLL, fdwReason, lpvReserved: INTEGER): INTEGER;
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RETURN 0
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END dllentry;
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PROCEDURE sofinit*;
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BEGIN
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IF fini # NIL THEN
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fini
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END
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END sofinit;
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PROCEDURE SetFini* (ProcFini: SOFINI);
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BEGIN
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fini := ProcFini
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END SetFini;
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END API. |