memory-alignment

问题 I need to use readdir_r() to read the contents of a directory in a multithreaded program. Since the size of struct dirent is filesystem dependent, man readdir_r recommends name_max = pathconf(dirpath, _PC_NAME_MAX); if (name_max == -1) /* Limit not defined, or error */ name_max = 255; /* Take a guess */ len = offsetof(struct dirent, d_name) + name_max + 1; to find the size of the allocation needed. To allocate it entryp = malloc(len); is called, and finally readdir_r() uses it like this:

来源： https://stackoverflow.com/questions/64729055/what-does-aligning-the-stack-mean-in-assembly

来源： https://stackoverflow.com/questions/64729055/what-does-aligning-the-stack-mean-in-assembly

来源： https://stackoverflow.com/questions/46155675/accessing-first-field-of-struct-in-a-union-of-structs

来源： https://stackoverflow.com/questions/41031363/aligned-alloc-function-requirements

来源： https://stackoverflow.com/questions/14014622/xmm-instructions-segmentation-fault-with-memory-source-operand

来源： https://stackoverflow.com/questions/44287060/c-class-packing-member-alignment

来源： https://stackoverflow.com/questions/44287060/c-class-packing-member-alignment

来源： https://stackoverflow.com/questions/53450282/data-alignment-to-enable-vectorization-efficient-cache-access

来源： https://stackoverflow.com/questions/53450282/data-alignment-to-enable-vectorization-efficient-cache-access