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Fix: Disable IBT around indirect function calls
[lttng-modules.git]
/
src
/
wrapper
/
kallsyms.c
diff --git
a/src/wrapper/kallsyms.c
b/src/wrapper/kallsyms.c
index 2535c2a527faed90f20909ce809334adaae28169..295617f6434084f030959bcb33736820eeecf0a3 100644
(file)
--- a/
src/wrapper/kallsyms.c
+++ b/
src/wrapper/kallsyms.c
@@
-127,9
+127,15
@@
unsigned long wrapper_kallsyms_lookup_name(const char *name)
if (!kallsyms_lookup_name_sym) {
kallsyms_lookup_name_sym = (void *)do_get_kallsyms();
}
if (!kallsyms_lookup_name_sym) {
kallsyms_lookup_name_sym = (void *)do_get_kallsyms();
}
- if (kallsyms_lookup_name_sym)
- return kallsyms_lookup_name_sym(name);
- else {
+ if (kallsyms_lookup_name_sym) {
+ struct irq_ibt_state irq_ibt_state;
+ unsigned long ret;
+
+ irq_ibt_state = wrapper_irq_ibt_save();
+ ret = kallsyms_lookup_name_sym(name);
+ wrapper_irq_ibt_restore(irq_ibt_state);
+ return ret;
+ } else {
printk_once(KERN_WARNING "LTTng: requires kallsyms_lookup_name\n");
return 0;
}
printk_once(KERN_WARNING "LTTng: requires kallsyms_lookup_name\n");
return 0;
}
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