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path: root/arch/x86/vdso/checkundef.sh
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2010-07-28x86, vdso: Don't quote $nm in the script for checking vdso referencesH. Peter Anvin
Don't quote $nm in the script for checking the vdso for external references. Doing so breaks multiword constructs, like using CROSS_COMPILE='ccache '. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <20100728134252.2e4c27cf.sfr@canb.auug.org.au>
2010-06-18x86, vdso: Error out if the vdso contains external referencesH. Peter Anvin
The vdso is a piece of userspace code which is supposed to be fully self-contained. Any external (undefined) reference is an error, and should be caught at compile time. This was giving us trouble when compiling with -Os on gcc 4.5.0, for example (failed inline). The need to do a buildtime check was pointed out by Andi Kleen. Reported-by: Andi Kleen <andi@firstfloor.org> LKML-Reference: <tip-*@vger.kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>