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| author | Andi Kleen <ak@linux.intel.com> | 2013-10-22 20:07:56 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-01-30 10:17:17 +0400 |
| commit | a2e7f0e3a4f0f23fe4cd8cc22da547872f0170bb (patch) | |
| tree | c13215deb885bace1fbfe9d084d8d5781e8f7c62 /arch/x86/include/asm/paravirt.h | |
| parent | 824a2870098fa5364d49d4cd5a1f41544d9f6c65 (diff) | |
| download | linux-a2e7f0e3a4f0f23fe4cd8cc22da547872f0170bb.tar.xz | |
x86, asmlinkage, paravirt: Make paravirt thunks global
The paravirt thunks use a hack of using a static reference to a static
function to reference that function from the top level statement.
This assumes that gcc always generates static function names in a specific
format, which is not necessarily true.
Simply make these functions global and asmlinkage or __visible. This way the
static __used variables are not needed and everything works.
Functions with arguments are __visible to keep the register calling
convention on 32bit.
Changed in paravirt and in all users (Xen and vsmp)
v2: Use __visible for functions with arguments
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Ido Yariv <ido@wizery.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1382458079-24450-5-git-send-email-andi@firstfloor.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/paravirt.h')
| -rw-r--r-- | arch/x86/include/asm/paravirt.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 401f350ef71b..cd6e1610e29e 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -781,9 +781,9 @@ static __always_inline void __ticket_unlock_kick(struct arch_spinlock *lock, */ #define PV_CALLEE_SAVE_REGS_THUNK(func) \ extern typeof(func) __raw_callee_save_##func; \ - static void *__##func##__ __used = func; \ \ asm(".pushsection .text;" \ + ".globl __raw_callee_save_" #func " ; " \ "__raw_callee_save_" #func ": " \ PV_SAVE_ALL_CALLER_REGS \ "call " #func ";" \ |