Will Deacon 6f1a6ae87c arm64: vdso: work-around broken ELF toolchains in Makefile ... When building the kernel with a bare-metal (ELF) toolchain, the -shared option may not be passed down to collect2, resulting in silent corruption of the vDSO image (in particular, the DYNAMIC section is omitted). The effect of this corruption is that the dynamic linker fails to find the vDSO symbols and libc is instead used for the syscalls that we intended to optimise (e.g. gettimeofday). Functionally, there is no issue as the sigreturn trampoline is still intact and located by the kernel. This patch fixes the problem by explicitly passing -shared to the linker when building the vDSO. Cc: <stable@vger.kernel.org> Reported-by: Szabolcs Nagy <Szabolcs.Nagy@arm.com> Reported-by: James Greenlaigh <james.greenhalgh@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2015-06-19 14:54:10 +01:00
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.gitignore
gen_vdso_offsets.sh
gettimeofday.S	arm64: vdso: minor ABI fix for clock_getres	2015-02-26 18:13:51 +00:00
Makefile	arm64: vdso: work-around broken ELF toolchains in Makefile	2015-06-19 14:54:10 +01:00
note.S
sigreturn.S
vdso.lds.S	arm64: vdso: move data page before code pages	2014-07-17 16:18:57 +01:00
vdso.S