diff options
| author | Ard Biesheuvel <[email protected]> | 2017-08-18 20:49:35 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-08-21 09:43:49 +0200 |
| commit | 760b61d76da6d6a99eb245ab61abf71ca5415cea (patch) | |
| tree | 2226dbad7a1698d774cdd0c5945385105400d682 | |
| parent | f56ab9a5b73ca2aee777ccdf2d355ae2dd31db5a (diff) | |
efi/libstub/arm64: Use hidden attribute for struct screen_info reference
To prevent the compiler from emitting absolute references to screen_info
when building position independent code, redeclare the symbol with hidden
visibility.
Tested-by: Matthias Kaehlcke <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Matt Fleming <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/arm64/include/asm/efi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index 8f3043aba873..464ac850c5e2 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -81,6 +81,9 @@ static inline unsigned long efi_get_max_initrd_addr(unsigned long dram_base, #define alloc_screen_info(x...) &screen_info #define free_screen_info(x...) +/* redeclare as 'hidden' so the compiler will generate relative references */ +extern struct screen_info screen_info __attribute__((__visibility__("hidden"))); + static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { } |