On 25.06.2021 11:17, Andrew Cooper wrote: > On 25/06/2021 07:31, Jan Beulich wrote: >> On 24.06.2021 19:55, Andrew Cooper wrote: >>> Fixes: bef64f2c00 ("libxencall: introduce variant of xencall2() returning >>> long") >> Is this strictly necessary, i.e. is a Fixes: tag here warranted? > > Yes - very much so. > > andrewcoop@andrewcoop:/local/xen.git/xen$ readelf -Wa > ../tools/libs/call/libxencall.so.1.2 | grep 1\\.3 > 33: 0000000000001496 59 FUNC GLOBAL DEFAULT 13 > xencall2L@@VERS_1.3 > 39: 0000000000000000 0 OBJECT GLOBAL DEFAULT ABS VERS_1.3 > 76: 0000000000000000 0 OBJECT GLOBAL DEFAULT ABS VERS_1.3 > 020: 4 (VERS_1.2) 5 (VERS_1.3) 2 (VERS_1.0) 3 > (VERS_1.1) > 024: 3 (VERS_1.1) 2 (VERS_1.0) 4 (VERS_1.2) 5 > (VERS_1.3) > 0x0080: Rev: 1 Flags: none Index: 5 Cnt: 2 Name: VERS_1.3 > > Without this, you create a library called .so.1.2 with 1.3's ABI in.
I'm aware of the change to file contents as well as the disagreement of file name / SONAME vs enumerated versions. So telling me this is not really an answer to my question. It may be by convention that the two should match up, but I don't see any functional issue (yet) if they don't. Plus of course you leave open altogether the backporting aspect of my question. Jan