linux/export: Fix alignment for 64-bit ksymtab entries

An alignment of 4 bytes is wrong for 64-bit platforms which don't define CONFIG_HAVE_ARCH_PREL32_RELOCATIONS (which then store 64-bit pointers). Fix their alignment to 8 bytes. Fixes: ddb5cdb ("kbuild: generate KSYMTAB entries by modpost") Signed-off-by: Helge Deller <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]>
torvalds · Dec 23, 2023 · f684780 · f684780
1 parent 2cc14f5
commit f684780
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/include/linux/export-internal.h b/include/linux/export-internal.h
@@ -16,10 +16,13 @@
  * and eliminates the need for absolute relocations that require runtime
  * processing on relocatable kernels.
  */
+#define __KSYM_ALIGN ".balign 4"
 #define __KSYM_REF(sym) ".long " #sym "- ."
 #elif defined(CONFIG_64BIT)
+#define __KSYM_ALIGN ".balign 8"
 #define __KSYM_REF(sym) ".quad " #sym
 #else
+#define __KSYM_ALIGN ".balign 4"
 #define __KSYM_REF(sym) ".long " #sym
 #endif
 
@@ -42,7 +45,7 @@
  " .asciz \"" ns "\"" "\n" \
  " .previous" "\n" \
  " .section \"___ksymtab" sec "+" #name "\", \"a\"" "\n" \
-  " .balign 4" "\n" \
+  __KSYM_ALIGN "\n" \
  "__ksymtab_" #name ":" "\n" \
  __KSYM_REF(sym) "\n" \
  __KSYM_REF(__kstrtab_ ##name) "\n" \