Fixed memory corruption caused by Xft fonts
Recent freetype library seems to do a huge alloca()s which
may (and actyally does) overrun to other's (Smalltalk) process
stack segment, corrupting the memory badly.
To solve this, declare (some) calls to Xft library as UNLIMITEDSTACK.
--- a/XftFontDescription.st Wed Sep 09 16:32:20 2015 +0100
+++ b/XftFontDescription.st Mon Sep 21 21:17:16 2015 +0100
@@ -680,7 +680,7 @@
drawIdIsShared := true.
].
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
XftFont *font;
XftDraw *draw;
@@ -1080,7 +1080,7 @@
]
].
pix := aColor colorId.
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
XftColor clr;
if ( ! __isExternalAddressLike(drawIdArg) ) {
@@ -1135,7 +1135,7 @@
wObj := rect width.
hObj := rect height.
].
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
XRectangle r;
if ( ! __isExternalAddressLike(drawIdArg) ) {
@@ -1178,7 +1178,7 @@
]
].
pix := aColor colorId.
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
int _start, _stop;
int __x, __y;
@@ -1345,7 +1345,7 @@
xftFontMatch: displayId screen: screen pattern: patternId
| error |
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
XftPattern* p;
XftResult r;
@@ -1382,7 +1382,7 @@
xftFontOpenPattern: displayId pattern: patternId
| error |
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
XftFont* f;
if ( ! __isExternalAddressLike(displayId) ) {
@@ -1650,7 +1650,7 @@
extents := Array new: 6.
bitsPerCharacter := text bitsPerCharacter.
-%{
+%{ /* UNLIMITEDSTACK */
#ifdef XFT
XGlyphInfo info;
int bytesPerCharacter;