From: Zong Li <zong@andestech.com> To: <palmer@sifive.com>, <albert@sifive.com>, <linux-riscv@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <zong@andestech.com>, <zongbox@gmail.com> Cc: <greentime@andestech.com> Subject: [PATCH 00/11] RISC-V: Resolve the issue of loadable module on 64-bit Date: Tue, 13 Mar 2018 16:35:05 +0800 [thread overview] Message-ID: <cover.1520928420.git.zong@andestech.com> (raw) These patches resolve the some issues of loadable module. - symbol out of ranges - unknown relocation types The reference of external variable and function symbols cannot exceed 32-bit offset ranges in kernel module. The module only can work on the 32-bit OS or the 64-bit OS with sv32 virtual addressing. These patches will generate the .got, .got.plt and .plt sections during loading module, let it can refer to the symbol which locate more than 32-bit offset. These sections depend on the relocation types: - R_RISCV_GOT_HI20 - R_RISCV_CALL_PLT These patches also support more relocation types - R_RISCV_CALL - R_RISCV_HI20 - R_RISCV_LO12_I - R_RISCV_LO12_S - R_RISCV_RVC_BRANCH - R_RISCV_RVC_JUMP - R_RISCV_ALIGN - R_RISCV_ADD32 - R_RISCV_SUB32 Zong Li (11): RISC-V: Add sections of PLT and GOT for kernel module RISC-V: Add section of GOT.PLT for kernel module RISC-V: Support GOT_HI20/CALL_PLT relocation type in kernel module RISC-V: Support CALL relocation type in kernel module RISC-V: Support HI20/LO12_I/LO12_S relocation type in kernel module RISC-V: Support RVC_BRANCH/JUMP relocation type in kernel modulewq RISC-V: Support ALIGN relocation type in kernel module RISC-V: Support ADD32 relocation type in kernel module RISC-V: Support SUB32 relocation type in kernel module RISC-V: Enable module support in defconfig RISC-V: Add definition of relocation types arch/riscv/Kconfig | 5 ++ arch/riscv/Makefile | 3 + arch/riscv/configs/defconfig | 2 + arch/riscv/include/asm/module.h | 112 +++++++++++++++++++++++ arch/riscv/include/uapi/asm/elf.h | 24 +++++ arch/riscv/kernel/Makefile | 1 + arch/riscv/kernel/module-sections.c | 156 ++++++++++++++++++++++++++++++++ arch/riscv/kernel/module.c | 175 ++++++++++++++++++++++++++++++++++-- arch/riscv/kernel/module.lds | 8 ++ 9 files changed, 480 insertions(+), 6 deletions(-) create mode 100644 arch/riscv/include/asm/module.h create mode 100644 arch/riscv/kernel/module-sections.c create mode 100644 arch/riscv/kernel/module.lds -- 2.16.1
WARNING: multiple messages have this Message-ID (diff)
From: zong@andestech.com (Zong Li) To: linux-riscv@lists.infradead.org Subject: [PATCH 00/11] RISC-V: Resolve the issue of loadable module on 64-bit Date: Tue, 13 Mar 2018 16:35:05 +0800 [thread overview] Message-ID: <cover.1520928420.git.zong@andestech.com> (raw) These patches resolve the some issues of loadable module. - symbol out of ranges - unknown relocation types The reference of external variable and function symbols cannot exceed 32-bit offset ranges in kernel module. The module only can work on the 32-bit OS or the 64-bit OS with sv32 virtual addressing. These patches will generate the .got, .got.plt and .plt sections during loading module, let it can refer to the symbol which locate more than 32-bit offset. These sections depend on the relocation types: - R_RISCV_GOT_HI20 - R_RISCV_CALL_PLT These patches also support more relocation types - R_RISCV_CALL - R_RISCV_HI20 - R_RISCV_LO12_I - R_RISCV_LO12_S - R_RISCV_RVC_BRANCH - R_RISCV_RVC_JUMP - R_RISCV_ALIGN - R_RISCV_ADD32 - R_RISCV_SUB32 Zong Li (11): RISC-V: Add sections of PLT and GOT for kernel module RISC-V: Add section of GOT.PLT for kernel module RISC-V: Support GOT_HI20/CALL_PLT relocation type in kernel module RISC-V: Support CALL relocation type in kernel module RISC-V: Support HI20/LO12_I/LO12_S relocation type in kernel module RISC-V: Support RVC_BRANCH/JUMP relocation type in kernel modulewq RISC-V: Support ALIGN relocation type in kernel module RISC-V: Support ADD32 relocation type in kernel module RISC-V: Support SUB32 relocation type in kernel module RISC-V: Enable module support in defconfig RISC-V: Add definition of relocation types arch/riscv/Kconfig | 5 ++ arch/riscv/Makefile | 3 + arch/riscv/configs/defconfig | 2 + arch/riscv/include/asm/module.h | 112 +++++++++++++++++++++++ arch/riscv/include/uapi/asm/elf.h | 24 +++++ arch/riscv/kernel/Makefile | 1 + arch/riscv/kernel/module-sections.c | 156 ++++++++++++++++++++++++++++++++ arch/riscv/kernel/module.c | 175 ++++++++++++++++++++++++++++++++++-- arch/riscv/kernel/module.lds | 8 ++ 9 files changed, 480 insertions(+), 6 deletions(-) create mode 100644 arch/riscv/include/asm/module.h create mode 100644 arch/riscv/kernel/module-sections.c create mode 100644 arch/riscv/kernel/module.lds -- 2.16.1
next reply other threads:[~2018-03-13 8:48 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-03-13 8:35 Zong Li [this message] 2018-03-13 8:35 ` [PATCH 00/11] RISC-V: Resolve the issue of loadable module on 64-bit Zong Li 2018-03-13 8:35 ` [PATCH 01/11] RISC-V: Add sections of PLT and GOT for kernel module Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-14 17:20 ` kbuild test robot 2018-03-14 17:20 ` kbuild test robot 2018-03-13 8:35 ` [PATCH 02/11] RISC-V: Add section of GOT.PLT " Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-14 17:34 ` kbuild test robot 2018-03-14 17:34 ` kbuild test robot 2018-03-15 9:35 ` Zong Li 2018-03-15 9:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 03/11] RISC-V: Support GOT_HI20/CALL_PLT relocation type in " Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 04/11] RISC-V: Support CALL " Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 05/11] RISC-V: Support HI20/LO12_I/LO12_S " Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 06/11] RISC-V: Support RVC_BRANCH/JUMP relocation type in kernel modulewq Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 07/11] RISC-V: Support ALIGN relocation type in kernel module Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 08/11] RISC-V: Support ADD32 " Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 09/11] RISC-V: Support SUB32 " Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 10/11] RISC-V: Enable module support in defconfig Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 8:35 ` [PATCH 11/11] RISC-V: Add definition of relocation types Zong Li 2018-03-13 8:35 ` Zong Li 2018-03-13 10:35 ` [PATCH 00/11] RISC-V: Resolve the issue of loadable module on 64-bit Zong Li 2018-03-13 10:35 ` Zong Li 2018-03-13 18:35 ` Palmer Dabbelt 2018-03-13 18:35 ` Palmer Dabbelt 2018-03-13 21:30 ` Shea Levy 2018-03-13 21:30 ` Shea Levy 2018-03-14 1:34 ` Zong Li 2018-03-14 1:34 ` Zong Li 2018-03-14 3:07 ` Palmer Dabbelt 2018-03-14 3:07 ` Palmer Dabbelt 2018-03-14 11:15 ` Zong Li 2018-03-14 11:15 ` Zong Li 2018-03-14 11:56 ` Shea Levy 2018-03-14 11:56 ` Shea Levy 2018-03-14 12:20 ` Zong Li 2018-03-14 12:20 ` Zong Li 2018-03-14 11:54 ` Shea Levy 2018-03-14 11:54 ` Shea Levy 2018-03-14 17:07 ` Palmer Dabbelt 2018-03-14 17:07 ` Palmer Dabbelt 2018-03-14 3:51 ` Palmer Dabbelt 2018-03-14 3:51 ` Palmer Dabbelt 2018-03-14 12:07 ` Shea Levy 2018-03-14 12:07 ` Shea Levy 2018-03-14 17:07 ` Palmer Dabbelt 2018-03-14 17:07 ` Palmer Dabbelt 2018-03-14 17:11 ` Shea Levy 2018-03-14 17:11 ` Shea Levy 2018-03-14 17:30 ` Palmer Dabbelt 2018-03-14 17:30 ` Palmer Dabbelt 2018-03-13 21:26 ` Shea Levy 2018-03-13 21:26 ` Shea Levy
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