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Author	SHA1	Message	Date
Masahiro Yamada	7f6d8f7e43	kbuild: remove ARCH_POSTLINK from module builds The '%.ko' rule in arch/*/Makefile.postlink does nothing but call the 'true' command. Remove the unneeded code. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nicolas Schier <n.schier@avm.de>	2023-10-28 21:10:08 +09:00
Alexandre Ghiti	559d1e45a1	riscv: Use --emit-relocs in order to move .rela.dyn in init To circumvent an issue where placing the relocations inside the init sections produces empty relocations, use --emit-relocs. But to avoid carrying those relocations in vmlinux, use an intermediate vmlinux.relocs file which is a copy of vmlinux before stripping its relocations. Suggested-by: Björn Töpel <bjorn@kernel.org> Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20230329045329.64565-7-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>	2023-04-19 07:46:33 -07:00
Alexandre Ghiti	c2dea0bc53	riscv: Check relocations at compile time Relocating kernel at runtime is done very early in the boot process, so it is not convenient to check for relocations there and react in case a relocation was not expected. There exists a script in scripts/ that extracts the relocations from vmlinux that is then used at postlink to check the relocations. Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20230329045329.64565-6-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>	2023-04-19 07:46:32 -07:00

Author

SHA1

Message

Date

Masahiro Yamada

7f6d8f7e43

kbuild: remove ARCH_POSTLINK from module builds

The '%.ko' rule in arch/*/Makefile.postlink does nothing but call the
'true' command.

Remove the unneeded code.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>

2023-10-28 21:10:08 +09:00

Alexandre Ghiti

559d1e45a1

riscv: Use --emit-relocs in order to move .rela.dyn in init

To circumvent an issue where placing the relocations inside the init
sections produces empty relocations, use --emit-relocs. But to avoid
carrying those relocations in vmlinux, use an intermediate
vmlinux.relocs file which is a copy of vmlinux *before* stripping its
relocations.

Suggested-by: Björn Töpel <bjorn@kernel.org>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230329045329.64565-7-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

2023-04-19 07:46:33 -07:00

Alexandre Ghiti

c2dea0bc53

riscv: Check relocations at compile time

Relocating kernel at runtime is done very early in the boot process, so
it is not convenient to check for relocations there and react in case a
relocation was not expected.

There exists a script in scripts/ that extracts the relocations from
vmlinux that is then used at postlink to check the relocations.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20230329045329.64565-6-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

2023-04-19 07:46:32 -07:00

3 Commits