diff options
| author | Richard Braun <rbraun@sceen.net> | 2017-04-06 00:24:23 +0200 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2017-04-06 00:24:23 +0200 |
| commit | 4ac24d88b35c53480e9495e0f69487d9210f8519 (patch) | |
| tree | 9b77189e850f2866dd038bf650df0a26979e65ba | |
| parent | 953503820a133cb7f9f92185d6ea570648f44556 (diff) | |
x86/boot: fix __bootdata macro
Uninitialized variables declared with the __bootdata macro may still be
placed into the .bss section. Completely prevent the possibility by
including the "used" variable attribute in the macro.
See https://bugs.llvm.org//show_bug.cgi?id=9520.
| -rw-r--r-- | arch/x86/machine/boot.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/machine/boot.h b/arch/x86/machine/boot.h index 7e0d609..6b012f8 100644 --- a/arch/x86/machine/boot.h +++ b/arch/x86/machine/boot.h @@ -61,7 +61,7 @@ * Once paging is enabled, their access relies on the kernel identity mapping. */ #define __boot __section(".boot.text") -#define __bootdata __section(".boot.data") +#define __bootdata __section(".boot.data") __attribute__((used)) /* * Boundaries of the .boot section. |