linux/arch/riscv
Nathan Chancellor b3d6bdfea2
riscv: Adjust dependencies of HAVE_DYNAMIC_FTRACE selection
When building allmodconfig with clang and its integrated assembler and
linking with a version of GNU ld prior to 2.36, the following link error
occurs:

  riscv64-linux-gnu-ld: .init.data has both ordered [`__patchable_function_entries' in init/main.o] and unordered [`.init_array.0' in kernel/trace/trace_benchmark.o] sections
  riscv64-linux-gnu-ld: final link failed: bad value

This is the same error addressed by commit 45bd895180 ("arm64: Improve
HAVE_DYNAMIC_FTRACE_WITH_REGS selection for clang") for arm64. See that
changelog for a full description of why this error occurs with this
combination of tools.

In a similar manner as that change, restrict the
CONFIG_HAVE_DYNAMIC_FTRACE selection to combinations of tools known to
work so that there are no errors.

Link: https://github.com/ClangBuiltLinux/linux/issues/1817
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230404-riscv-dynamic-ftrace-checks-clang-v1-1-0ce296b7d423@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-04-29 11:27:32 -07:00
..
boot RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
configs Remove orphaned CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT 2023-03-27 13:12:09 +02:00
errata RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
include RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
kernel RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
kvm RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
lib riscv: Allow to downgrade paging mode from the command line 2023-04-26 07:30:52 -07:00
mm RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-03-09 22:22:11 -08:00
purgatory purgatory: fix disabling debug info 2023-04-08 19:36:53 +09:00
tools riscv: Check relocations at compile time 2023-04-19 07:46:32 -07:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig riscv: Adjust dependencies of HAVE_DYNAMIC_FTRACE selection 2023-04-29 11:27:32 -07:00
Kconfig.debug
Kconfig.errata Merge patch series "RISC-V: Fixes for riscv_has_extension[un]likely()'s alternative dependency" 2023-03-29 12:26:38 -07:00
Kconfig.socs RISC-V Patches for the 6.3 Merge Window, Part 1 2023-02-25 11:14:08 -08:00
Makefile RISC-V Patches for the 6.4 Merge Window, Part 1 2023-04-28 16:55:39 -07:00
Makefile.postlink riscv: Use --emit-relocs in order to move .rela.dyn in init 2023-04-19 07:46:33 -07:00