1# For the pre-R6 code in arch/mips/vdso/vdso.h for locating 2# the base address of VDSO, the linker will emit a R_MIPS_PC32 3# relocation in binutils > 2.25 but it will fail with older versions 4# because that relocation is not supported for that symbol. As a result 5# of which we are forced to disable the VDSO symbols when building 6# with < 2.25 binutils on pre-R6 kernels. For more references on why we 7# can't use other methods to get the base address of VDSO please refer to 8# the comments on that file. 9# 10# GCC (at least up to version 9.2) appears to emit function calls that make use 11# of the GOT when targeting microMIPS, which we can't use in the VDSO due to 12# the lack of relocations. As such, we disable the VDSO for microMIPS builds. 13 14config MIPS_LD_CAN_LINK_VDSO 15 def_bool LD_VERSION >= 22500 || LD_IS_LLD 16 17config MIPS_DISABLE_VDSO 18 def_bool CPU_MICROMIPS || (!CPU_MIPSR6 && !MIPS_LD_CAN_LINK_VDSO) 19