WebIt's faster to have GCC emit only aligned accesses. > KBUILD_CFLAGS += $(call cc-option,-mstrict-align) > >+# Ensure that we do not vectorize the kernel code when the `v` extension is >+# enabled. This mirrors the `-mno-mmx` et al on x86. WebSep 25, 2024 · I correctly got the alignment warning. cast increases required alignment of target type [-Wcast-align] from the GCC compiler due to the following code: uint8_t …
c - GNU GCC Compiler - Understanding alignment attribute in structure…
WebJan 5, 2013 · Since some versions of gcc simply fail to align stack variables properly (notably for arm code), or even sometimes it says that maximum alignment for the target architecture is less than what my code actually requests, I simply have no choice but to allocate these arrays on the stack and align them manually. ... Alignment: There is little … WebMar 5, 2024 · GCC___attribute__关键字和字节对齐 2012年10月05日 23:35:15 sno_guo 阅读数:9605 标签: gcc编译器structattributes数据结构alignment更多 个人分类: linux基本操作ffmpeg+DisplayModuleC/C++学习 ffmpeg在代码中大量的使用了字节对齐,甚至在有些成员变量中也定义了字节对齐的宏,使得在看代码... maxscript get all objects
[PATCH] riscv: avoid enabling vectorized code generation
WebJan 15, 2024 · gcc-arm-none-eabi device-tree-compiler However? I still get CLI option errors: gcc: error: unrecognized command line option '-mstrict-align'; did you mean '-Wstrict-aliasing'? gcc: error: unrecognized command line option '-mgeneral-regs-only' A quick search online shows that this is likely an older GCC version problem. What GCC … WebAt a high level it reflects whether gcc toggle -mstrict-align has been used to build. Speaking of gcc there' another wrinkle to worry about. gcc driver has a notion of cpu tune param which specifies whether unaligned accesses are generally efficient on the cpu (or not). And a cpu tune with slow_unaligned_access=true will disregard -mno-strict ... WebThe default is -misa-spec=20241213 unless GCC has been configured with --with-isa-spec= specifying a different default version. -march=ISA-string. Generate code for given RISC-V ISA ... -mstrict-align-mno-strict-align. Do not or do generate unaligned memory accesses. The default is set depending on whether the processor we are optimizing for ... maxscript dictionary