diff options
| author | Thomas Gleixner | 2007-10-11 11:17:10 +0200 |
|---|---|---|
| committer | Thomas Gleixner | 2007-10-11 11:17:10 +0200 |
| commit | 7648b1330c335601b7c09c25f77a03cda128fcab (patch) | |
| tree | 8b92b501dc746b135bf9019472b425e8ef052714 /arch/x86/vdso/vextern.h | |
| parent | x86_64: move lib (diff) | |
| download | kernel-qcow2-linux-7648b1330c335601b7c09c25f77a03cda128fcab.tar.gz kernel-qcow2-linux-7648b1330c335601b7c09c25f77a03cda128fcab.tar.xz kernel-qcow2-linux-7648b1330c335601b7c09c25f77a03cda128fcab.zip | |
x86_64: move vdso
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/vdso/vextern.h')
| -rw-r--r-- | arch/x86/vdso/vextern.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/vdso/vextern.h b/arch/x86/vdso/vextern.h new file mode 100644 index 000000000000..1683ba2ae3e8 --- /dev/null +++ b/arch/x86/vdso/vextern.h @@ -0,0 +1,16 @@ +#ifndef VEXTERN +#include <asm/vsyscall.h> +#define VEXTERN(x) \ + extern typeof(x) *vdso_ ## x __attribute__((visibility("hidden"))); +#endif + +#define VMAGIC 0xfeedbabeabcdefabUL + +/* Any kernel variables used in the vDSO must be exported in the main + kernel's vmlinux.lds.S/vsyscall.h/proper __section and + put into vextern.h and be referenced as a pointer with vdso prefix. + The main kernel later fills in the values. */ + +VEXTERN(jiffies) +VEXTERN(vgetcpu_mode) +VEXTERN(vsyscall_gtod_data) |