During the last few days I tried compiling the kernel for ARM32 with LLVMs integrated assembler. The elephant in the room is definitely the unified syntax which is required by the LLVM assembler. I converted most mnemonics using a regex, but it is not perfect and needs some manual fixes. I am not sure if this is the right approach, feedback welcome. I plan to send fixes in groups in the next few weeks, if that effort is welcome.
There are a couple of other issues besides unified syntax, e.g. lack of feature argument parsing (e.g. armv7-a+sec). This patchset is a starting point to enable LLVM integrated assembler and contains some trivial changes. With this patchset the LLVM integrated assembler can be used to assemble almost all C files. Stefan Agner (3): ARM: fix argument count to match macro definition ARM: uaccess: use unified assembler language syntax ARM: spinlock: use unified assembler language syntax arch/arm/include/asm/spinlock.h | 2 +- arch/arm/include/asm/uaccess.h | 2 +- arch/arm/lib/copy_template.S | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) -- 2.20.1