Update for kernel 5.7: use vmalloc_sync_mappings on kernels >= 5.7

[lttng-modules.git] / wrapper / kallsyms.h

diff --git a/wrapper/kallsyms.h b/wrapper/kallsyms.h
index e60fe363818243d78885aa15961256d66f3ec4ec..7f4d8300c53eb591bd7e55b84529bd2ab634e288 100644 (file)
--- a/wrapper/kallsyms.h
+++ b/wrapper/kallsyms.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
  *
  * wrapper/kallsyms.h
  *
@@ -14,6 +14,7 @@
 #define _LTTNG_WRAPPER_KALLSYMS_H
 
 #include <linux/kallsyms.h>
+#include <linux/version.h>
 
 /*
  * PowerPC ABIv1 needs KALLSYMS_ALL to get the function descriptor,
@@ -25,12 +26,26 @@
 # endif
 #endif
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0))
+
+unsigned long wrapper_kallsyms_lookup_name(const char *name);
+
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+
+static inline
+unsigned long wrapper_kallsyms_lookup_name(const char *name)
+{
+       return kallsyms_lookup_name(name);
+}
+
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)) */
+
 static inline
 unsigned long kallsyms_lookup_funcptr(const char *name)
 {
        unsigned long addr;
 
-       addr = kallsyms_lookup_name(name);
+       addr = wrapper_kallsyms_lookup_name(name);
 #ifdef CONFIG_ARM
 #ifdef CONFIG_THUMB2_KERNEL
        if (addr)
@@ -43,6 +58,7 @@ unsigned long kallsyms_lookup_funcptr(const char *name)
 static inline
 unsigned long kallsyms_lookup_dataptr(const char *name)
 {
-       return kallsyms_lookup_name(name);
+       return wrapper_kallsyms_lookup_name(name);
 }
+
 #endif /* _LTTNG_WRAPPER_KALLSYMS_H */