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* [PATCH 0/5] LoongArch: Support new relocation types
@ 2022-07-27 16:24 Xi Ruoyao
  2022-07-27 16:26 ` [PATCH 1/5] LoongArch: Add section of GOT for kernel module Xi Ruoyao
                   ` (5 more replies)
  0 siblings, 6 replies; 17+ messages in thread
From: Xi Ruoyao @ 2022-07-27 16:24 UTC (permalink / raw)
  To: loongarch; +Cc: linux-kernel, WANG Xuerui, Huacai Chen

The version 2.00 of LoongArch ELF ABI specification introduced new
relocation types, and the development tree of Binutils and GCC has
started to use them.  If the kernel is built with the latest snapshot of
Binutils or GCC, it will fail to load the modules because of unrecognized
relocation types in modules.

Add support for GOT and new relocation types for the module loader, so
the kernel (with modules) can be built with the "normal" code model and
function properly.

Tested by building the kernel with Binutils & GCC master branch, and
running the kernel with 35 in-tree modules loaded.

Link: https://github.com/loongson/LoongArch-Documentation/pull/57
Link: https://gcc.gnu.org/r13-1834
Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=f09482a

Xi Ruoyao (5):
  LoongArch: Add section of GOT for kernel module
  LoongArch: Support R_LARCH_SOP_PUSH_GPREL relocation type in kernel
    module
  LoongArch: Support relocation against _GLOBAL_OFFSET_TABLE_
  LoongArch: Stop using undocumented assembler options
  LoongArch: Support modules with new relocation types

 arch/loongarch/Makefile                 |  5 +-
 arch/loongarch/include/asm/elf.h        | 37 ++++++++++
 arch/loongarch/include/asm/module.h     | 23 ++++++
 arch/loongarch/include/asm/module.lds.h |  1 +
 arch/loongarch/kernel/head.S            | 10 +--
 arch/loongarch/kernel/module-sections.c | 72 +++++++++++++++++--
 arch/loongarch/kernel/module.c          | 94 +++++++++++++++++++++++++
 7 files changed, 229 insertions(+), 13 deletions(-)

-- 
2.37.0



^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2022-07-28 11:21 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-27 16:24 [PATCH 0/5] LoongArch: Support new relocation types Xi Ruoyao
2022-07-27 16:26 ` [PATCH 1/5] LoongArch: Add section of GOT for kernel module Xi Ruoyao
     [not found]   ` <849f514e-f78a-72a2-b94e-6974074b75eb@loongson.cn>
2022-07-28  9:02     ` Xi Ruoyao
2022-07-28  9:21       ` Youling Tang
2022-07-28 10:53         ` Xi Ruoyao
2022-07-27 16:27 ` [PATCH 2/5] LoongArch: Support R_LARCH_SOP_PUSH_GPREL relocation type in " Xi Ruoyao
2022-07-27 16:28 ` [PATCH 3/5] LoongArch: Support relocation against _GLOBAL_OFFSET_TABLE_ Xi Ruoyao
2022-07-28  1:02   ` Jinyang He
2022-07-28  6:41     ` Xi Ruoyao
2022-07-28  9:14       ` Jinyang He
2022-07-28 10:57         ` Xi Ruoyao
2022-07-28 11:21           ` Jinyang He
2022-07-27 16:29 ` [PATCH 4/5] LoongArch: Stop using undocumented assembler options Xi Ruoyao
2022-07-28  9:46   ` Youling Tang
2022-07-28 10:58     ` Xi Ruoyao
2022-07-27 16:31 ` [PATCH 5/5] LoongArch: Support modules with new relocation types Xi Ruoyao
2022-07-27 16:46 ` [PATCH 0/5] LoongArch: Support " Xi Ruoyao

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