https://issues.dlang.org/show_bug.cgi?id=17596
--- Comment #4 from Vladimir Panteleev <dlang-bugzi...@thecybershadow.net> --- (In reply to Cy Schubert from comment #3) > The implementer of inode64 has done a great job of avoiding ABI breakage. > Applications built before inode64 continue to run due to code in libc to > detect "old" v.s. "new". Most newly compiled code builds and runs okay. DMD > is different however because many data structures are replicated in DMD. For > example stat_t and dirent_t headers have issues. How does the old/new detection work? Does it look at the ELF timestamp, or something like that? Because D has binary releases for FreeBSD (and compiling it from source is a bit onerous as it requires bootstrapping through an older version of D), we will probably want to ensure, if possible, that the binary D releases will work on both new and old versions of the system for a while. This likely means that we would want to use the old fstat ABI exclusively for a few years, so if it's possible to opt in to the old ABI, that would probably be the way to go for now. Is the new functionality available via a new function akin to fstat64 on Linux? > I wasn't able to find a stub that DMD D might use to make the actual call. > If you can point me in the right direction I should be able to do the work > myself (when I can find the time). dmd/src/root/file.d is now located at dmd/src/ddmd/root/file.d: https://github.com/dlang/dmd/blob/master/src/ddmd/root/file.d#L97 For FreeBSD, fstat is defined here: https://github.com/dlang/druntime/blob/master/src/core/sys/posix/sys/stat.d#L1207 and stat_t here: https://github.com/dlang/druntime/blob/master/src/core/sys/posix/sys/stat.d#L730-L758 Finally, ino_t is defined here: https://github.com/dlang/druntime/blob/master/src/core/sys/posix/sys/types.d#L135 I believe that fstat is called by linking to the respective libc, i.e. D does not perform the syscall directly. > Having said that, any change would be incompatible with older releases of > FreeBSD so, a possible solution might be a version check for > version(FreeBSD12+) -- (FreeBSD uses a version check in > /usr/include/sys/param.h.) Is there a way to determine which release of > FreeBSD within DMD D? Such as version(something)? Not as far as I know. I guess it would require changing the compiler to detect the FreeBSD release and enable a corresponding version, which would also need to be added. --
