I'm running into the 'mfence' in apr_thread_ext.c in the
apr_memory_rw_barrier method.
-Nathan
On 4/4/07, Nathan Beyer <[EMAIL PROTECTED]> wrote:
Commenting out the AddVectoredExceptionHandler helped a bit. Here's
what else (diff below) I had to remove from DRLVM to get "java
-version" to work. I still can't get a simple HelloWorld class to run,
even with just the interpreter. I wouldn't be surprised that my little
hack isn't completely correct.
Index: port/src/vmem/win/port_vmem.c
===================================================================
--- port/src/vmem/win/port_vmem.c (revision 525583)
+++ port/src/vmem/win/port_vmem.c (working copy)
@@ -236,12 +236,12 @@
}
APR_DECLARE(size_t) port_vmem_max_size(){
- PERFORMANCE_INFORMATION pi;
- if ( GetPerformanceInfo( &pi, sizeof(pi)) ) {
- return (pi.CommitLimit - pi.CommitTotal) * pi.PageSize +
port_vmem_committed_size();
- } else {
+// PERFORMANCE_INFORMATION pi;
+// if ( GetPerformanceInfo( &pi, sizeof(pi)) ) {
+// return (pi.CommitLimit - pi.CommitTotal) * pi.PageSize +
port_vmem_committed_size();
+// } else {
return (size_t)0;
- }
+// }
}
#ifdef __cplusplus
Index: vmcore/src/stack/stack_dump.cpp
===================================================================
--- vmcore/src/stack/stack_dump.cpp (revision 525583)
+++ vmcore/src/stack/stack_dump.cpp (working copy)
@@ -85,11 +85,11 @@
PSYMBOL_INFO pSymb = (PSYMBOL_INFO)smBuf;
pSymb->SizeOfStruct = sizeof(smBuf);
pSymb->MaxNameLen = 2048;
- DWORD64 funcDispl;
- if(SymFromAddr(GetCurrentProcess(), (DWORD64)ip, &funcDispl, pSymb)) {
- info->method_name = (char*) STD_MALLOC(strlen(pSymb->Name) + 1);
- strcpy(info->method_name, pSymb->Name);
- }
+ //DWORD64 funcDispl;
+ //if(SymFromAddr(GetCurrentProcess(), (DWORD64)ip, &funcDispl, pSymb)) {
+ // info->method_name = (char*) STD_MALLOC(strlen(pSymb->Name) + 1);
+ // strcpy(info->method_name, pSymb->Name);
+ //}
DWORD lineOffset;
IMAGEHLP_LINE lineInfo;
if (SymGetLineFromAddr(GetCurrentProcess(), (DWORD)ip,
&lineOffset, &lineInfo)) {
Index: vmcore/src/util/win/nt_platform_utils.cpp
===================================================================
--- vmcore/src/util/win/nt_platform_utils.cpp (revision 525583)
+++ vmcore/src/util/win/nt_platform_utils.cpp (working copy)
@@ -60,16 +60,16 @@
assert(ok);
// add VEH to catch NPE's from bytecode
- TRACE2("signals", "Adding vectored exception handler...");
- veh = AddVectoredExceptionHandler(0, vectored_exception_handler);
- assert(veh);
+ // TRACE2("signals", "Adding vectored exception handler...");
+ // veh = AddVectoredExceptionHandler(0, vectored_exception_handler);
+ // assert(veh);
}
void shutdown_signals() {
- TRACE2("signals", "Removing vectored exception handler...");
- ULONG res;
- res = RemoveVectoredExceptionHandler(veh);
- assert(res);
+ // TRACE2("signals", "Removing vectored exception handler...");
+ // ULONG res;
+ // res = RemoveVectoredExceptionHandler(veh);
+ // assert(res);
} //shutdown_signals
//The following is for socket error handling
-Nathan
On 4/4/07, Gregory Shimansky <[EMAIL PROTECTED]> wrote:
> On Friday 02 March 2007 21:56 Geir Magnusson Jr. wrote:
> > I thought it used to work. Also, I thought that someone had shown
> > that Win2k was still widely deployed. maybe that's win2k+3? (I can
> > never keep the windows platform family straight anymore...)
>
> Resurrecting this old thread about w2k, Nathan, what happens if you just
> comment out the line with AddVectoredExceptionHandler? In this case you'll
> lose a handler registration, so you will not have hardware NPEs (I am not
> sure about the JIT status for ia32, are hardware NPEs enabled for this
> architecture?), you won't have JVMTI breakpoints in JIT mode, so debugging
> won't work. But the rest of VM should work on w2k with the exception of the
> code which uses P4 specific instructions.
>
> If this helps to at least start running the VM, I think it could be possible
> to move from vectored exceptions to older structured ones on w2k and make it
> a supported platform.
>
> If you get illegal instruction like mfence on w2k as well, probably the
> modifications which Evgueni Brevnov is going to offer for P3 backport on
> Linux could help you running at least something...
>
> I am asking because I don't have either w2k or P3 processor, so all I can do
> to help right now is give some suggestions.
>
> > geir
> >
> > On Feb 26, 2007, at 8:31 PM, Nathan Beyer wrote:
> > > Thanks for details.
> > >
> > > So I guess I'll ask the question again, is there a desire for Win2K
> > > support? I'm not sure I really have an opinion one way or the other.
> > > In relation to the previous discussion, I do think we should maintain
> > > a single code base, so I guess this means either coding to the
> > > lowest-common spec, some sort of test-and-branch or C macros (?).
> > >
> > > I do think it would be helpful to spit out a "OS not supported" error
> > > condition in these cases.
> > >
> > > -Nathan
> > >
> > > On 2/26/07, Alex Astapchuk <[EMAIL PROTECTED]> wrote:
> > >> Btw, the w2k issue has been raised before. Start of the tread is
> > >> here:
> > >>
> > >> http://mail-archives.apache.org/mod_mbox/harmony-dev/200608.mbox/%
> > >> [EMAIL PROTECTED]
> > >>
> > >> then it turns into 'platform support':
> > >>
> > >> http://mail-archives.apache.org/mod_mbox/harmony-dev/200608.mbox/%
> > >> [EMAIL PROTECTED]
> > >>
> > >> and HARMONY-1145 was filed against the issue.
> > >>
> > >> --
> > >> Thanks,
> > >> Alex
> > >>
> > >> Alex Astapchuk wrote:
> > >> > Hi Nathan,
> > >> >
> > >> > > Failed to open JVM DLL:
> > >> >
> > >> > C:\bt-trunk\cc\projects\drlvm\trunk\build\win_ia32_msvc_debug
> > >>
> > >> \deploy\jdk\jre\bin\default\harmonyvm
> > >>
> > >> > DRLVM can not be run on Win2000: it uses 'vectored exception
> > >> > handler' [1] (instead of old-fashion structured exception handler),
> > >> > and this feature requires at least WinXP/Win2k3 [2].
> > >> >
> > >> > There may be more XP-specific functions I'm not aware about, but
> > >> > at least this one will make the loading fail because the loader
> > >> > can not find AddVectoredExceptionHandler export in kernel32.dll.
> > >> >
> > >> > [1] vm\vmcore\src\util\win\nt_platform_utils.cpp
> > >> > grep for AddVectoredExceptionHandler around the line 63.
> > >> >
> > >> > [2] http://msdn2.microsoft.com/en-us/library/ms679274.aspx
> > >> >
> > >> > Requirements
> > >> > Client Requires Windows Vista or Windows XP.
> > >> > Server Requires Windows Server "Longhorn" or Windows Server 2003.
> > >> > Header Declared in Winbase.h; include Windows.h.
> > >> > Library Use Kernel32.lib.
> > >> > DLL Requires Kernel32.dll.
>
> --
> Gregory
>
