Aurelien Jarno 6df2a016c0 riscv: fix build with binutils 2.38 ... From version 2.38, binutils default to ISA spec version 20191213. This means that the csr read/write (csrr*/csrw*) instructions and fence.i instruction has separated from the `I` extension, become two standalone extensions: Zicsr and Zifencei. As the kernel uses those instruction, this causes the following build failure: CC arch/riscv/kernel/vdso/vgettimeofday.o <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h: Assembler messages: <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01' <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01' <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01' <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01' The fix is to specify those extensions explicitely in -march. However as older binutils version do not support this, we first need to detect that. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com> Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2022-02-10 09:17:01 -08:00
..
boot	riscv: dts: sifive unmatched: Add gpio poweroff	2022-01-20 09:37:23 -08:00
configs	RISC-V: nommu_virt: Drop unused SLAB_MERGE_DEFAULT	2022-01-20 12:48:14 -08:00
errata	riscv: errata: alternative: mark vendor_patch_func __initdata	2022-01-09 11:02:46 -08:00
include	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
kernel	riscv: cpu-hotplug: clear cpu from numa map when teardown	2022-02-10 09:16:50 -08:00
kvm	RISC-V: Do not use cpumask data structure for hartid bitmap	2022-01-20 09:27:22 -08:00
lib	riscv: extable: consolidate definitions	2022-01-05 17:52:47 -08:00
mm	riscv: extable: fix err reg writing in dedicated uaccess handler	2022-02-08 17:02:47 -08:00
net	riscv: bpf: Fix eBPF's exception tables	2022-01-19 10:50:02 -08:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	RISC-V Patches for the 5.17 Merge Window, Part 2	2022-01-22 09:34:49 +02:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.erratas	riscv: enable SiFive errata CIP-453 and CIP-1200 Kconfig only if CONFIG_64BIT=y	2021-05-06 09:40:13 -07:00
Kconfig.socs	RISC-V: Add StarFive SoC Kconfig option	2021-11-28 20:03:34 +01:00
Makefile	riscv: fix build with binutils 2.38	2022-02-10 09:17:01 -08:00