debugger: proactively attempt to work around ubuntu's "kernel hardening" attempts

src/plugins/debugger/ptracepreload.c

@@ -0,0 +1,12 @@
+
+#include <unistd.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+
+int _init(void)
+{
+    prctl(0x59616d61, getppid(), 0, 0, 0);
+    puts("eeks\n");
+    return 0;
+}
+

src/plugins/debugger/ptracepreload.pro

@@ -0,0 +1,13 @@
+
+include(../../qtcreatorlibrary.pri)
+
+TEMPLATE = lib
+TARGET = ptracepreload
+CONFIG += shared
+CONFIG -= qt
+DESTDIR = $$IDE_LIBRARY_PATH
+
+QMAKE_LFLAGS *= -nostdlib -ldl -lc
+
+SOURCES = ptracepreload.c
+

src/plugins/plugins.pro

@@ -40,6 +40,10 @@ SUBDIRS   = plugin_coreplugin \
             plugin_macros \
             debugger/dumper.pro
 
+linux-* {
+     SUBDIRS += debugger/ptracepreload.pro
+}
+
 include(../../qtcreator.pri)
 
 contains(QT_CONFIG, declarative) {