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path: root/arch/loongarch/include/asm/alternative-asm.h
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2025-06-26LoongArch: Replace __ASSEMBLY__ with __ASSEMBLER__ in headersThomas Huth
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembler code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This is bad since macros starting with two underscores are names that are reserved by the C language. It can also be very confusing for the developers when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's now standardize on the __ASSEMBLER__ macro that is provided by the compilers. This is almost a completely mechanical patch (done with a simple "sed -i" statement), with one comment tweaked manually in the arch/loongarch/include/asm/cpu.h file (it was missing the trailing underscores). Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2022-12-14LoongArch: Add alternative runtime patching mechanismHuacai Chen
Introduce the "alternative" mechanism from ARM64 and x86 for LoongArch to apply runtime patching. The main purpose of this patch is to provide a framework. In future we can use this mechanism (i.e., the ALTERNATIVE and ALTERNATIVE_2 macros) to optimize hotspot functions according to cpu features. Signed-off-by: Jun Yi <yijun@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>