kernel_optimize_test/arch/riscv
Aurelien Jarno 85602bea29
RISC-V: build vdso-dummy.o with -no-pie
Debian toolcahin defaults to PIE, and I guess that will also be the case
of most distributions. This causes the following build failure:

  AS      arch/riscv/kernel/vdso/getcpu.o
  AS      arch/riscv/kernel/vdso/flush_icache.o
  VDSOLD  arch/riscv/kernel/vdso/vdso.so.dbg
  OBJCOPY arch/riscv/kernel/vdso/vdso.so
  AS      arch/riscv/kernel/vdso/vdso.o
  VDSOLD  arch/riscv/kernel/vdso/vdso-dummy.o
  LD      arch/riscv/kernel/vdso/vdso-syms.o
riscv64-linux-gnu-ld: attempted static link of dynamic object `arch/riscv/kernel/vdso/vdso-dummy.o'
make[2]: *** [arch/riscv/kernel/vdso/Makefile:43: arch/riscv/kernel/vdso/vdso-syms.o] Error 1
make[1]: *** [scripts/Makefile.build:575: arch/riscv/kernel/vdso] Error 2
make: *** [Makefile:1018: arch/riscv/kernel] Error 2

While the root Makefile correctly passes "-fno-PIE" to build individual
object files, the RISC-V kernel also builds vdso-dummy.o as an
executable, which is therefore linked as PIE. Fix that by updating this
specific link rule to also include "-no-pie".

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-04-24 10:54:46 -07:00
..
configs RISC-V: Enable module support in defconfig 2018-04-02 20:00:56 -07:00
include riscv: there is no <asm/handle_irq.h> 2018-04-24 10:54:23 -07:00
kernel RISC-V: build vdso-dummy.o with -no-pie 2018-04-24 10:54:46 -07:00
lib RISC-V: Export some expected symbols for modules 2017-11-30 10:01:10 -08:00
mm RISC-V changes for 4.16 2018-02-07 11:33:08 -08:00
Kconfig riscv: select DMA_DIRECT_OPS instead of redefining it 2018-04-24 10:54:08 -07:00
Makefile RISC-V: Fixes to module loading 2018-04-02 20:43:14 -07:00