Ros-dev

ros-dev@reactos.org

1 participants
5791 discussions

Trunk Freeze
by WaxDragon 17 Sep '05

17 Sep '05

It's only been two weeks since I sent out the August State of the Repository, but the tree has already had 271 revisions. There have been several large commits, and trunk has had several build breakages, and instability in general. Just today we had three commits reversing and unreversing some of Alex's changes. I'm calling for a trunk freeze until several issues have been addressed. * The release build is broken. So far the string library and the usb code have been fixed. I was working with Alex on a break in the exception handling when this topic came up. * There seems to be a mysterious hang when shutting down ReactOS in qemu. I've seen it personally and heard reports of it, but since it locks up qemu so bad you can't free the mouse, no one has gotten a trace (that I am aware of). * Gunnar's win32k changes introduced several bugs, many of which were fixed, but I still feel unsure about others that may be hiding. * Hartmut fixed the MP build. See, I didn't even know that was broken. I would like to freeze the tree for 72 hours, over the weekend, allowing bugfixes only. I think we all need to grab a fresh copy and run it under every platform we have, checking all the options. According to the rules set forth, I need three developers. Who agrees to a trunk freeze?

7 11

RE: [ros-dev] Problem with compiling 17859
by Ge van Geldorp 17 Sep '05

17 Sep '05

> From: Ge van Geldorp > > Complaints to alex It turns out there was a communication problem between Alex and myself. A little background: in r17811 Alex introduced a line in an asm file which failed to compile on older binutils. I talked to him about this on IRC and proposed a workaround. The communication problem was that I thought he rejected the workaround, while Alex thought he ok'ed the workaround and thought I would make the change. Result: workaround not applied and 2 people pissed-off at each other. My apologies to Alex for the remark quoted above, which was inappropriate even if he hadn't agreed to the workaround. Ge van Geldorp.

1 0

Disassempler
by Rick Langschultz 17 Sep '05

17 Sep '05

Does anyone have any examples of a disassembler or decompiler that I could use for my ReactOS program I am writing... Does anyone know about a disassembler or decompiler for Mac OS X also? Rick Langschultz rlangschultz(a)cox.net (Home) rlangschultz(a)ellemaespa.com (Work) rlangschultz(a)email.uophx.edu (School)

2 1

set /a implementation for review
by Royce Mitchell III 17 Sep '05

17 Sep '05

recursive-descent implementation of set /a. I'm sure not all error messages are going to match MS's exactly. I didn't really try to do that. since trunk is frozen, I'm submitting this patch for anybody that wants to review. I'll commit it Monday evening (if I have time) pending any suggestions for improvements or bug-fixes, etc that ppl may have for it. Index: set.c =================================================================== --- set.c (revision 17890) +++ set.c (working copy) @@ -35,6 +35,8 @@ */ #include <precomp.h> +#include <malloc.h> +#include <stdio.h> #include "resource.h" #ifdef INCLUDE_CMD_SET @@ -43,7 +45,15 @@ /* initial size of environment variable buffer */ #define ENV_BUFFER_SIZE 1024 +static BOOL +seta_eval ( LPCTSTR expr ); +static LPCTSTR +skip_ws ( LPCTSTR p ) +{ + return p + strspn ( p, " \t" ); +} + INT cmd_set (LPTSTR cmd, LPTSTR param) { TCHAR szMsg[RC_STRING_MAX_SIZE]; @@ -83,6 +93,12 @@ return 0; } + if ( !_tcsnicmp (param, _T("/A"), 2) ) + { + // TODO FIXME - what are we supposed to return? + return seta_eval ( skip_ws(param+2) ); + } + p = _tcschr (param, _T('=')); if (p) { @@ -124,4 +140,386 @@ return 0; } +static INT +ident_len ( LPCTSTR p ) +{ + LPCTSTR p2 = p; + if ( __iscsymf(*p) ) + { + ++p2; + while ( __iscsym(*p2) ) + ++p2; + } + return p2-p; +} + +#define dup_ident(p) _tcsncpy_s(alloca((ident_len(p)+1)*sizeof(TCHAR)), p, +#define PARSE_IDENT(ident,identlen,p) \ + identlen = ident_len(p); \ + ident = (LPTSTR)alloca ( ( identlen + 1 ) * sizeof(TCHAR) ); \ + memmove ( ident, p, identlen * sizeof(TCHAR) ); \ + ident[identlen] = 0; + +static BOOL +seta_identval ( LPCTSTR ident, INT* result ) +{ + // get size of buffer for env var + LPTSTR buf; + DWORD dwBuffer = GetEnvironmentVariable ( ident, NULL, 0 ); + // if GetEnvironmentVariable() fails, it returns 0 + if ( !dwBuffer ) + { + // TODO FIXME - is it correct to report a value of 0 for non-existant variables? + *result = 0; + return FALSE; + } + buf = (LPTSTR)alloca ( dwBuffer * sizeof(TCHAR) ); + if ( !buf ) + { + // TODO FIXME - is it correct to report 0 when report resources low... should we error somehow? + *result = 0; + return FALSE; + } + GetEnvironmentVariable ( ident, buf, dwBuffer ); + *result = atoi ( buf ); + return TRUE; +} + +static BOOL +calc ( INT* lval, TCHAR op, INT rval ) +{ + switch ( op ) + { + case '*': + *lval *= rval; + break; + case '/': + *lval /= rval; + break; + case '%': + *lval %= rval; + break; + case '+': + *lval += rval; + break; + case '-': + *lval -= rval; + break; + case '&': + *lval &= rval; + break; + case '^': + *lval ^= rval; + break; + case '|': + *lval |= rval; + break; + default: + printf ( "Invalid operand.\n" ); + return FALSE; + } + return TRUE; +} + +static BOOL +seta_assignment ( LPCTSTR* p_, INT* result ); + +static BOOL +seta_unaryTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + if ( *p == '(' ) + { + INT rval; + p = skip_ws ( p + 1 ); + if ( !seta_assignment ( &p, &rval ) ) + return FALSE; + if ( *p != ')' ) + { + _tprintf ( _T("Expected ')'\n") ); + return FALSE; + } + p = skip_ws ( p + 1 ); + *p_ = p; + return TRUE; + } + if ( isdigit(*p) ) + { + *result = atoi ( p ); + p = skip_ws ( p + strspn ( p, "1234567890" ) ); + } + else if ( __iscsymf(*p) ) + { + LPTSTR ident; + INT identlen; + PARSE_IDENT(ident,identlen,p); + if ( !seta_identval ( ident, result ) ) + return FALSE; + } + else + { + _tprintf ( _T("Expected number or variable name\n") ); + return FALSE; + } + *p_ = p; + return TRUE; +} + +static BOOL +seta_mulTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + TCHAR op = 0; + INT rval; + if ( _tcschr(_T("!~-"),*p) ) + { + op = *p; + p = skip_ws ( p + 1 ); + } + if ( !seta_unaryTerm ( &p, &rval ) ) + return FALSE; + switch ( op ) + { + case '!': + rval = !rval; + break; + case '~': + rval = ~rval; + break; + case '-': + rval = -rval; + break; + } + + *result = rval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_addTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + INT lval; + if ( !seta_mulTerm ( &p, &lval ) ) + return FALSE; + while ( *p && _tcschr(_T("*/%"),*p) ) + { + INT rval; + TCHAR op = *p; + + p = skip_ws ( p+1 ); + + if ( !seta_mulTerm ( &p, &rval ) ) + return FALSE; + + if ( !calc ( &lval, op, rval ) ) + return FALSE; + } + + *result = lval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_logShiftTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + INT lval; + if ( !seta_addTerm ( &p, &lval ) ) + return FALSE; + while ( *p && _tcschr(_T("+-"),*p) ) + { + INT rval; + TCHAR op = *p; + + p = skip_ws ( p+1 ); + + if ( !seta_addTerm ( &p, &rval ) ) + return FALSE; + + if ( !calc ( &lval, op, rval ) ) + return FALSE; + } + + *result = lval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_bitAndTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + INT lval; + if ( !seta_logShiftTerm ( &p, &lval ) ) + return FALSE; + while ( *p && _tcschr(_T("<>"),*p) && p[0] == p[1] ) + { + INT rval; + TCHAR op = *p; + + p = skip_ws ( p+2 ); + + if ( !seta_logShiftTerm ( &p, &rval ) ) + return FALSE; + + if ( !calc ( &lval, op, rval ) ) + return FALSE; + } + + *result = lval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_bitExclOrTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + INT lval; + if ( !seta_bitAndTerm ( &p, &lval ) ) + return FALSE; + while ( *p == _T('&') ) + { + INT rval; + + p = skip_ws ( p+1 ); + + if ( !seta_bitAndTerm ( &p, &rval ) ) + return FALSE; + + lval &= rval; + } + + *result = lval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_bitOrTerm ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + INT lval; + if ( !seta_bitExclOrTerm ( &p, &lval ) ) + return FALSE; + while ( *p == _T('^') ) + { + INT rval; + + p = skip_ws ( p+1 ); + + if ( !seta_bitExclOrTerm ( &p, &rval ) ) + return FALSE; + + lval ^= rval; + } + + *result = lval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_expr ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + INT lval; + if ( !seta_bitOrTerm ( &p, &lval ) ) + return FALSE; + while ( *p == _T('|') ) + { + INT rval; + + p = skip_ws ( p+1 ); + + if ( !seta_bitOrTerm ( &p, &rval ) ) + return FALSE; + + lval |= rval; + } + + *result = lval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_assignment ( LPCTSTR* p_, INT* result ) +{ + LPCTSTR p = *p_; + LPTSTR ident; + TCHAR op = 0; + INT identlen, exprval; + + PARSE_IDENT(ident,identlen,p); + if ( identlen ) + { + if ( *p == _T('=') ) + op = *p, p++; + else if ( _tcschr ( _T("*/%+-&^|"), *p ) && p[1] == _T('=') ) + op = *p, p += 2; + else if ( _tcschr ( _T("<>"), *p ) && *p == p[1] && p[2] == _T('=') ) + op = *p, p += 3; + else + { + _tprintf ( _T("Missing operand.\n") ); + return FALSE; + } + p += strspn ( p, " \t" ); + } + + if ( !seta_expr ( &p, &exprval ) ) + return FALSE; + + if ( identlen ) + { + INT identval; + LPTSTR buf; + + if ( !seta_identval ( ident, &identval ) ) + return FALSE; + if ( op == '=' ) + identval = *result; + else if ( !calc ( &identval, op, exprval ) ) + return FALSE; + buf = (LPTSTR)alloca ( 32 * sizeof(TCHAR) ); + _sntprintf ( buf, 32, _T("%i"), identval ); + SetEnvironmentVariable ( ident, buf ); // TODO FIXME - check return value + exprval = identval; + } + + *result = exprval; + *p_ = p; + return TRUE; +} + +static BOOL +seta_eval ( LPCTSTR p ) +{ + INT rval; + if ( !*p ) + { + _tprintf ( _T("The syntax of the command is incorrect.\n") ); + return FALSE; + } + for ( ;; ) + { + if ( !seta_assignment ( &p, &rval ) ) + return FALSE; + if ( !*p ) + break; + if ( *p != _T(',') ) + { + _tprintf ( _T("Missing operator.\n") ); + return FALSE; + } + ++p; // skip comma + } + _tprintf ( _T("%i\n"), rval ); + return TRUE; +} + #endif

2 1

Problem with compiling 17859
by Saveliy Tretiakov 17 Sep '05

17 Sep '05

What's this? [GAS] lib\rtl\i386\except.s lib\rtl\i386\except.s: Assembler messages: lib\rtl\i386\except.s:207: Error: Unrecognized token `|4)' lib\rtl\i386\except.s:207: Error: Unexpected token `' lib\rtl\i386\except.s:232: Error: Unrecognized token `|4)' lib\rtl\i386\except.s:232: Error: Unexpected token `' make: *** [obj-i386\lib\rtl\i386\except.o] Error 1

5 6

Anyone looking for a nice, uncomplicated bug to fix?
by Ge van Geldorp 16 Sep '05

16 Sep '05

Bug 775 (http://www.reactos.com/bugzilla/show_bug.cgi?id=775) seems to be a simple application bug. I expect no kernel involvement at all. So, if you were always wanting to fix something in ReactOS but were afraid it might be too complicated, this bug is for you. It should give you experience in building and debugging ReactOS so maybe next time you can attack something a little bit more complicated. Gé van Geldorp.

1 0

Re: [ros-diffs] [hbirr] 17863: Fixed the MP build.
by Alex Ionescu 16 Sep '05

16 Sep '05

hbirr(a)svn.reactos.com wrote: >Fixed the MP build. > Hi Hartmut, I'm really sorry, I forgot to test MP=1 :( We really need a way to ensure that KDBG/MP code always gets built... it would cause less problems... Best regards, Alex Ionescu

1 0

Re: [ros-diffs] [ion] 17860: Return valid status
by Hartmut Birr 15 Sep '05

15 Sep '05

ion(a)svn.reactos.com wrote: >Return valid status > >Modified: trunk/reactos/lib/rtl/exception.c > > > ------------------------------------------------------------------------ > *Modified: trunk/reactos/lib/rtl/exception.c* > >--- trunk/reactos/lib/rtl/exception.c 2005-09-15 13:25:32 UTC (rev 17859) >+++ trunk/reactos/lib/rtl/exception.c 2005-09-15 14:07:37 UTC (rev 17860) >@@ -39,10 +39,10 @@ > > Context.ContextFlags = CONTEXT_FULL; > > /* Check if we're being debugged (user-mode only) */ > > >- if (!RtlpCheckForActiveDebugger()) > > >+ if (!RtlpCheckForActiveDebugger(TRUE)) > > RtlpCheckForActiveDebugger is defined as BOOLEAN NTAPI RtlpCheckForActiveDebugger(VOID); - Hartmut

1 0

I/O subsystem question
by Ge van Geldorp 15 Sep '05

15 Sep '05

I'm working on bug 713 (http://www.reactos.com/bugzilla/show_bug.cgi?id=713 for the click-happy). What I have found is this: - Telnet opens a socket - Sending and receiving are handled by different threads, let's call them S and R - Thread R starts a recv() operation, which is translated to an ioctl on the socket - No data is available, so thread R blocks, waiting for FileObject->Event - I type something, which is handled by thread S. Thread S starts a send() operation. - Again translated to an ioctl on the socket. Since this is the same socket as used by S, the FileObject will be the same - The send can complete immediately, IoCompleteRequest is called which sets the FileObject->Event. - Thread R is unblocked, the event it was waiting for was set by thread S. However, the irp of thread R was never completed. The recv() call returns with bogus info. - Thread R starts another recv(). When some data arrives from the server, two irps are waiting for it. This eventually leads to the crash. The fundamental problem seems to be multiple overlapping I/O operations which all use FileObject->Event to signal their completion. I have no idea how to fix that... Gé van Geldorp.

5 8

Non-working uxtheme.dll
by Mike Swanson 14 Sep '05

14 Sep '05

I'm sorry if this would a wrong place to post this, but since I'm trying the ReactOS uxtheme.dll, I figured this would be fine. I've compiled today's SVN, and I noticed that ReactOS had a uxtheme.dll (didn't know that before :P). Well, as a try, I went and put it on a Windows XP Professional machine (no service pack, and the Microsoft uxtheme.dll is un-patched). When I rebooted with the ReactOS DLL, Windows XP freezes at the welcome screen, the start up sound doesn't even play. So I'm wondering if uxtheme.dll isn't complete yet or if it's already known to have problems. -- Mike

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