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* nds32: fix building failed if using elf toolchain.Greentime Hu2018-03-161-1/+0Star
| | | | | | | | | | | | | | | | OUTPUT_FORMAT is not necessary here and the elf toolchain doesn't support these formats. Since kernel should be built pass with elf or Linux toolchain. This can be removed from vdso.ld.S These are the built failed messages. VDSOL arch/nds32/kernel/vdso/vdso.so.dbg /home/users/greentime/tmp/nds32le-elf-newlib-v3-upstream-b224/bin/../lib/gcc/nds32le-elf/8.0.1/../../../../nds32le-elf/bin/ld: target elf32-nds32le-linux not found collect2: error: ld returned 1 exit status make[1]: *** [arch/nds32/kernel/vdso/vdso.so.dbg] Error 1 make: *** [vdso_prepare] Error 2 Signed-off-by: Greentime Hu <greentime@andestech.com>
* nds32: VDSO supportGreentime Hu2018-02-228-0/+512
This patch adds VDSO support. The VDSO code is currently used for sys_rt_sigreturn() and optimised gettimeofday() (using the SoC timer counter). Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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