Ubuntu
gcc-9 package

  1. Bug #1830961
  2. Comment #13

Comment 13 for bug 1830961

Revision history for this message
Doug Smythies (dsmythies) wrote :

As per comment #4, i made the same change:

doug@serv-ee:~/temp-k-git/linux$ git diff
diff --git a/Makefile b/Makefile
index 3e4868a6498b..68f0858484a5 100644
--- a/Makefile
+++ b/Makefile
@@ -630,8 +630,8 @@ ifdef CONFIG_FUNCTION_TRACER
   CC_FLAGS_FTRACE := -pg
 endif

-RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register
-RETPOLINE_VDSO_CFLAGS_GCC := -mindirect-branch=thunk-inline -mindirect-branch-register
+RETPOLINE_CFLAGS_GCC := -mindirect-branch-register
+RETPOLINE_VDSO_CFLAGS_GCC := -mindirect-branch-register
 RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk
 RETPOLINE_VDSO_CFLAGS_CLANG := -mretpoline
 RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))

And while the kernel compile had a constant stream of warnings, the resulting kernel (5.2) works fine.