From mboxrd@z Thu Jan 1 00:00:00 1970 From: ard.biesheuvel@linaro.org (Ard Biesheuvel) Date: Sat, 31 Jan 2015 19:49:15 +0000 Subject: [PATCH resend 0/4] module loading for large kernels and Thumb-2 Message-ID: <1422733759-27236-1-git-send-email-ard.biesheuvel@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org I sent these patches to the list a while ago (end of November) and the first 2 were acked by Nico and put in rmk's patch system as http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=8219/1 http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=8220/1 Patch #1 and #2 implement a module PLT to help prevent module loading errors with big kernels and/or modules. Patch #3 is arguably a bug fix, although I don't think the issue it fixes has been observed in the wild. Patch #4 implements Thumb -> ARM interworking function calls, mainly for modules like accelerated crypto that are built around an assembler implementation which requires additional work to be built in Thumb-2 mode. (e.g., the SHA-1 and SHA-512 modules currently cannot be built in Thumb-2 mode for this exact reason, although I think the code works fine when adding .syntax unified etc) Ard Biesheuvel (4): ARM: handle interworking and out-of-range relocations separately ARM: allow modules outside of bl range ARM: Thumb-2: infer function annotation for external ksyms ARM: add partial interworking support to Thumb-2 kernel arch/arm/Kconfig | 17 +++- arch/arm/Makefile | 4 + arch/arm/include/asm/module.h | 12 ++- arch/arm/kernel/Makefile | 1 + arch/arm/kernel/module-plts.c | 182 ++++++++++++++++++++++++++++++++++++++++++ arch/arm/kernel/module.c | 101 +++++++++++++++++++---- arch/arm/kernel/module.lds | 4 + 7 files changed, 305 insertions(+), 16 deletions(-) create mode 100644 arch/arm/kernel/module-plts.c create mode 100644 arch/arm/kernel/module.lds -- 1.8.3.2