Messages in this thread Patch in this message |  | | From | Stefani Seibold <> | Subject | [PATCH v16 07/10] introduce VVAR marco for vdso32 | Date | Fri, 14 Feb 2014 09:52:41 +0100 |
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This patch revamp the vvar.h for introduce the VVAR macro for vdso32.
Signed-off-by: Stefani Seibold <stefani@seibold.net> --- arch/x86/include/asm/vvar.h | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/vvar.h b/arch/x86/include/asm/vvar.h index 0a534ea..52c79ff 100644 --- a/arch/x86/include/asm/vvar.h +++ b/arch/x86/include/asm/vvar.h @@ -26,6 +26,15 @@ #else +#ifdef BUILD_VDSO32 + +#define DECLARE_VVAR(offset, type, name) \ + extern type vvar_ ## name __attribute__((visibility("hidden"))); + +#define VVAR(name) (vvar_ ## name) + +#else + extern char __vvar_page; /* Base address of vvars. This is not ABI. */ @@ -39,12 +48,13 @@ extern char __vvar_page; static type const * const vvaraddr_ ## name = \ (void *)(VVAR_ADDRESS + (offset)); +#define VVAR(name) (*vvaraddr_ ## name) +#endif + #define DEFINE_VVAR(type, name) \ type name \ __attribute__((section(".vvar_" #name), aligned(16))) __visible -#define VVAR(name) (*vvaraddr_ ## name) - #endif /* DECLARE_VVAR(offset, type, name) */ -- 1.8.5.4
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