[PATCH 0/2] riscv: switch to relative extable
Jisheng Zhang
jszhang3 at mail.ustc.edu.cn
Sat Oct 16 09:04:08 PDT 2021
From: Jisheng Zhang <jszhang at kernel.org>
Similar as other architectures such as arm64, x86 and so on, use
offsets relative to the exception table entry values rather than
absolute addresses for both the exception locationand the fixup.
patch1 consolidates the __ex_table construction, it's a great code
clean up even w/o the 2nd patch.
patch2 does the real job.
Jisheng Zhang (2):
riscv: consolidate __ex_table construction
riscv: switch to relative exception tables
arch/riscv/include/asm/Kbuild | 1 -
arch/riscv/include/asm/extable.h | 25 ++++++++++++++++++++
arch/riscv/include/asm/futex.h | 12 +++-------
arch/riscv/include/asm/uaccess.h | 40 +++++++++++---------------------
arch/riscv/lib/uaccess.S | 4 ++--
arch/riscv/mm/extable.c | 2 +-
scripts/mod/modpost.c | 27 +++++++++++++++++++++
scripts/sorttable.c | 2 +-
8 files changed, 73 insertions(+), 40 deletions(-)
create mode 100644 arch/riscv/include/asm/extable.h
--
2.33.0
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