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| author | Roland McGrath <roland@redhat.com> | 2008-01-30 13:30:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:40 +0100 |
| commit | 5b93049337301d6fbd3cf55db99b34e6b0dbd3a3 (patch) | |
| tree | 69e42bddac98aff8035f03a36fc88030a7f2a902 /arch/x86/vdso/vdso.lds.S | |
| parent | c1d171a002942ea2d93b4fbd0c9583c56fce0772 (diff) | |
| download | talos-obmc-linux-5b93049337301d6fbd3cf55db99b34e6b0dbd3a3.tar.gz talos-obmc-linux-5b93049337301d6fbd3cf55db99b34e6b0dbd3a3.zip | |
x86 vDSO: generate vdso-syms.lds
This patch adds a new way of extracting symbols from the built vDSO image.
This is much simpler and less fragile than using ld -R; it removes the
need to control the DSO layout quite so exactly. I was clearly unduly
distracted by clever ld uses when I did the original vDSO implementation.
Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/vdso/vdso.lds.S')
| -rw-r--r-- | arch/x86/vdso/vdso.lds.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/vdso/vdso.lds.S b/arch/x86/vdso/vdso.lds.S index 667d3245d972..d40d0e906190 100644 --- a/arch/x86/vdso/vdso.lds.S +++ b/arch/x86/vdso/vdso.lds.S @@ -8,6 +8,16 @@ #define VDSO_PRELINK 0xffffffffff700000 +/* + * Symbols we define here called VDSO* get their values into vdso-syms.lds + * and become visible to the kernel itself. + */ +VDSO64_PRELINK = VDSO_PRELINK; + +#define VEXTERN(x) VDSO64_ ## x = vdso_ ## x; +#include "vextern.h" +#undef VEXTERN + SECTIONS { . = VDSO_PRELINK + SIZEOF_HEADERS; |
