On 2019-Oct-16 13:21:02 +0000, Andrew Turner <and...@freebsd.org> wrote: >Author: andrew >Date: Wed Oct 16 13:21:01 2019 >New Revision: 353640 >URL: https://svnweb.freebsd.org/changeset/base/353640 > >Log: > Stop leaking information from the kernel through timespec > > The timespec struct holds a seconds value in a time_t and a nanoseconds > value in a long. On most architectures these are the same size, however > on 32-bit architectures other than i386 time_t is 8 bytes and long is > 4 bytes. > > Most ABIs will then pad a struct holding an 8 byte and 4 byte value to > 16 bytes with 4 bytes of padding. When copying one of these structs the > compiler is free to copy the padding if it wishes.
Are there any other structs passed from kernel to userland that include padding? -- Peter Jeremy
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