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* Environment and arguments initialization now native
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yuri
parent
97d677c8c8
commit
ff7b561fc9
@ -1,16 +1,17 @@
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/ prt1.s (emx+fpk) -- Made from crt2.s and dos.s,
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/ Copyright (c) 1990-1999-2000 by Eberhard Mattes.
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/ Copyright (c) 1990-1999-2000 by Eberhard Mattes.
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/ Changed for Free Pascal in 1997 Daniel Mantione.
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/ This code is _not_ under the Library GNU Public
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/ License, because the original is not. See copying.emx
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/ for details. You should have received it with this
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/ product, write the author if you haven't.
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/ This code is _not_ under the Library GNU Public
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/ License, because the original is not. See copying.emx
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/ for details. You should have received it with this
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/ product, write the author if you haven't.
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.globl __entry1
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.globl _environ
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.globl _envc
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.globl _argv
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.globl _argc
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/ Heh. Not needed anymore.
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/ .globl _environ
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/ .globl _envc
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/ .globl _argv
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/ .globl _argc
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.text
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@ -29,7 +29,9 @@ interface
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{$ifdef SYSTEMDEBUG}
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{$define SYSTEMEXCEPTIONDEBUG}
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{$define IODEBUG}
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{.$define IODEBUG}
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{.$define DEBUGENVIRONMENT}
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{$define DEBUGARGUMENTS}
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{$endif SYSTEMDEBUG}
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{ $DEFINE OS2EXCEPTIONS}
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@ -118,10 +120,10 @@ const UnusedHandle=-1;
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var
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{ C-compatible arguments and environment }
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argc : longint;external name '_argc';
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argv : ppchar;external name '_argv';
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envp : ppchar;external name '_environ';
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EnvC: cardinal; external name '_envc';
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argc : longint; //external name '_argc';
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argv : ppchar; //external name '_argv';
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envp : ppchar; //external name '_environ';
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EnvC: cardinal; //external name '_envc';
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(* Pointer to the block of environment variables - used e.g. in unit Dos. *)
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Environment: PChar;
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@ -1067,6 +1069,267 @@ begin
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*)
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end;
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function strcopy(dest,source : pchar) : pchar;assembler;
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asm
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pushl %esi
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pushl %edi
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cld
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movl 12(%ebp),%edi
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movl $0xffffffff,%ecx
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xorb %al,%al
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repne
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scasb
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not %ecx
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movl 8(%ebp),%edi
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movl 12(%ebp),%esi
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movl %ecx,%eax
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shrl $2,%ecx
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rep
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movsl
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movl %eax,%ecx
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andl $3,%ecx
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rep
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movsb
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movl 8(%ebp),%eax
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popl %edi
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popl %esi
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end;
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procedure InitEnvironment;
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var env_count : longint;
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dos_env,cp : pchar;
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begin
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env_count:=0;
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cp:=environment;
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while cp ^ <> #0 do
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begin
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inc(env_count);
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while (cp^ <> #0) do inc(longint(cp)); { skip to NUL }
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inc(longint(cp)); { skip to next character }
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end;
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envp := getmem((env_count+1) * sizeof(pchar));
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envc := env_count;
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if (envp = nil) then exit;
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cp:=environment;
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env_count:=0;
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while cp^ <> #0 do
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begin
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envp[env_count] := getmem(strlen(cp)+1);
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strcopy(envp[env_count], cp);
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{$IfDef DEBUGENVIRONMENT}
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Writeln(stderr,'env ',env_count,' = "',envp[env_count],'"');
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{$EndIf}
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inc(env_count);
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while (cp^ <> #0) do
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inc(longint(cp)); { skip to NUL }
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inc(longint(cp)); { skip to next character }
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end;
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envp[env_count]:=nil;
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// longint(cp):=longint(cp)+3;
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// dos_argv0 := sysgetmem(strlen(cp)+1);
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// if (dos_argv0 = nil) then halt;
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// strcopy(dos_argv0, cp);
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{ update ___dos_argv0 also }
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// ___dos_argv0:=dos_argv0
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end;
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procedure InitArguments;
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var
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arglen,
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count : longint;
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argstart,
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pc,arg : pchar;
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quote : char;
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argvlen : longint;
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procedure allocarg(idx,len:longint);
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begin
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if idx>=argvlen then
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begin
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argvlen:=(idx+8) and (not 7);
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sysreallocmem(argv,argvlen*sizeof(pointer));
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end;
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{ use realloc to reuse already existing memory }
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{ always allocate, even if length is zero, since }
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{ the arg. is still present! }
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sysreallocmem(argv[idx],len+1);
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end;
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begin
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count:=0;
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argv:=nil;
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argvlen:=0;
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// Get argv[0]
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pc:=cmdline;
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Arglen:=0;
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repeat
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Inc(Arglen);
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until (pc[Arglen]=#0);
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allocarg(count,arglen);
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move(pc^,argv[count]^,arglen);
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{ ReSetup cmdline variable }
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repeat
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Inc(Arglen);
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until (pc[Arglen]=#0);
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pc:=GetMem(ArgLen);
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move(cmdline^, pc^, arglen);
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Arglen:=0;
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repeat
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Inc(Arglen);
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until (pc[Arglen]=#0);
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pc[Arglen]:=' '; // combine argv[0] and command line
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CmdLine:=pc;
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{ process arguments }
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pc:=cmdline;
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{$IfDef DEBUGARGUMENTS}
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Writeln(stderr,'GetCommandLine is #',pc,'#');
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{$EndIf }
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while pc^<>#0 do
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begin
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{ skip leading spaces }
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while pc^ in [#1..#32] do
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inc(pc);
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if pc^=#0 then
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break;
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{ calc argument length }
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quote:=' ';
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argstart:=pc;
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arglen:=0;
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while (pc^<>#0) do
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begin
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case pc^ of
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#1..#32 :
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begin
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if quote<>' ' then
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inc(arglen)
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else
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break;
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end;
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'"' :
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begin
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if quote<>'''' then
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begin
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if pchar(pc+1)^<>'"' then
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begin
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if quote='"' then
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quote:=' '
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else
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quote:='"';
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end
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else
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inc(pc);
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end
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else
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inc(arglen);
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end;
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'''' :
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begin
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if quote<>'"' then
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begin
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if pchar(pc+1)^<>'''' then
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begin
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if quote='''' then
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quote:=' '
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else
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quote:='''';
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end
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else
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inc(pc);
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end
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else
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inc(arglen);
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end;
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else
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inc(arglen);
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end;
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inc(pc);
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end;
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{ copy argument }
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{ Don't copy the first one, it is already there.}
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If Count<>0 then
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begin
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allocarg(count,arglen);
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quote:=' ';
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pc:=argstart;
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arg:=argv[count];
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while (pc^<>#0) do
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begin
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case pc^ of
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#1..#32 :
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begin
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if quote<>' ' then
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begin
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arg^:=pc^;
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inc(arg);
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end
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else
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break;
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end;
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'"' :
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begin
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if quote<>'''' then
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begin
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if pchar(pc+1)^<>'"' then
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begin
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if quote='"' then
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quote:=' '
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else
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quote:='"';
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end
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else
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inc(pc);
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end
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else
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begin
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arg^:=pc^;
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inc(arg);
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end;
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end;
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'''' :
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begin
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if quote<>'"' then
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begin
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if pchar(pc+1)^<>'''' then
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begin
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if quote='''' then
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quote:=' '
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else
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quote:='''';
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end
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else
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inc(pc);
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end
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else
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begin
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arg^:=pc^;
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inc(arg);
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end;
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end;
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else
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begin
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arg^:=pc^;
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inc(arg);
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end;
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end;
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inc(pc);
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end;
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arg^:=#0;
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end;
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{$IfDef DEBUGARGUMENTS}
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Writeln(stderr,'dos arg ',count,' #',arglen,'#',argv[count],'#');
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{$EndIf}
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inc(count);
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end;
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{ get argc and create an nil entry }
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argc:=count;
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allocarg(argc,0);
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{ free unused memory }
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sysreallocmem(argv,(argc+1)*sizeof(pointer));
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end;
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function GetFileHandleCount: longint;
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var L1: longint;
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@ -1116,13 +1379,15 @@ begin
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FileHandleCount := GetFileHandleCount;
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DosGetInfoBlocks (@TIB, @PIB);
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StackBottom := TIB^.Stack;
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Environment := pointer (PIB^.Env);
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{Set type of application}
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ApplicationType := PIB^.ProcType;
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IsConsole := ApplicationType <> 3;
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exitproc:=nil;
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{Initialize the heap.}
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initheap;
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InitHeap;
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{ ... and exceptions }
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SysInitExceptions;
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@ -1133,6 +1398,13 @@ begin
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{ no I/O-Error }
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inoutres:=0;
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{Initialize environment (must be after InitHeap because allocates memory)}
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Environment := pointer (PIB^.Env);
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InitEnvironment;
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CmdLine := pointer (PIB^.Cmd);
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InitArguments;
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{$ifdef HASVARIANT}
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initvariantmanager;
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{$endif HASVARIANT}
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@ -1146,7 +1418,10 @@ begin
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end.
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{
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$Log$
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Revision 1.57 2003-11-06 17:20:44 yuri
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Revision 1.58 2003-11-19 16:50:21 yuri
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* Environment and arguments initialization now native
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Revision 1.57 2003/11/06 17:20:44 yuri
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* Unused constants removed
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Revision 1.56 2003/11/03 09:42:28 marco
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