Fix: Set thread stack size to ulimit soft value

[lttng-tools.git] / src / common / defaults.h

diff --git a/src/common/defaults.h b/src/common/defaults.h
index f05030766a77be8dae7452e4fdaae94205378d79..178a601dfde3b38c619a421642564aefd078ac7a 100644 (file)
--- a/src/common/defaults.h
+++ b/src/common/defaults.h
@@ -354,4 +354,16 @@ size_t default_get_ust_pid_channel_subbuf_size(void);
 LTTNG_HIDDEN
 size_t default_get_ust_uid_channel_subbuf_size(void);
 
+/*
+ * Get the default pthread_attr to use on thread creation.
+ *
+ * Some libc, such as musl, don't honor the limit set for the stack size and use
+ * their own empirically chosen static value. This function checks if the
+ * current stack size is smaller than the stack size limit and if so returns a
+ * pthread_attr_t pointer where the thread stack size is set to the soft stack
+ * size limit.
+ */
+LTTNG_HIDDEN
+pthread_attr_t *default_pthread_attr(void);
+
 #endif /* _DEFAULTS_H */