On 11/29/2016 3:14 PM, Ken Brown wrote:
> I've looked at this a little, and the crash occurs because of a bad value of
> a pointer to a font list. I'm attaching an annotated transcript of a gdb
> session that illustrates this. I didn't try to figure out where the bad
> pointer came from.
I've done that now. There are three places in mosprshx.c where you cast a
pointer to a pointer to an object of a different size. Interesting things
happen when you dereference that pointer. The following patch gets rid of the
crash:
--- mosprshx.c~ 2016-12-04 10:02:36.706325200 -0500
+++ mosprshx.c 2016-12-04 10:28:35.160038200 -0500
@@ -235,7 +235,7 @@
}
XtSetArg(al[ac],XmNcolumns,longestFixedColumnSize+1); ac++;
if(toValue.addr) {
- XtSetArg(al[ac],XmNfontList,*(unsigned int *)toValue.addr); ac++;
+ XtSetArg(al[ac],XmNfontList,*(XtArgVal *)toValue.addr); ac++;
}
for(i1=0 ; i1<nRows ; i1++) {
sprintf(widgetName,"fixedColumnRow%d",i1);
@@ -265,7 +265,7 @@
XtSetArg(al[ac],XmNcolumns,cellSize); ac++;
}
if(toValue.addr) {
- XtSetArg(al[ac],XmNfontList,*(unsigned int *)toValue.addr); ac++;
+ XtSetArg(al[ac],XmNfontList,*(XtArgVal *)toValue.addr); ac++;
}
for(j1=0 ; j1<nColumns ; j1++) {
sprintf(widgetName,"fixedRowColumn%d",j1);
@@ -295,7 +295,7 @@
XtSetArg(al[ac],XmNmaxLength,cellSize); ac++;
}
if(toValue.addr) {
- XtSetArg(al[ac],XmNfontList,*(unsigned int *)toValue.addr); ac++;
+ XtSetArg(al[ac],XmNfontList,*(XtArgVal *)toValue.addr); ac++;
}
sprintf(widgetName,"column%drow%d",j1,i1);
variableRowAndColumnTF[loc] =
XmCreateTextField(variableColumnFM[j1],widgetName,al,ac); loc++;
Ken
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