On miércoles, 14 de diciembre de 2016 00:49:41 ART you wrote: > On miércoles, 7 de diciembre de 2016 08:02:20 ART Thiago Macieira wrote: > [snip] > > > But the extra versioning is a further safety check: if something was > > missed > > in the update, like for example some code compiled by the user (regardless > > of use of package management), it will necessarily stop working. > > I not sure of the usefullnes in this case. If I remember correctly the > linker will try first to locate the symbol with the right version and if it > fails the first symbol that matches no matter it's version.
Not exactly. According to [doc]: "When the linker finds a symbol defined in a library which is not specifically bound to a version node, it will effectively bind it to an unspecified base version of the library." [doc] <https://sourceware.org/binutils/docs/ld/VERSION.html> This explains the case when the symbols where added, but doesn't says what happens if a symbol can't be matched with a specific version. I've got crashes, but not problems at link time that I could see. -- Lisandro Damián Nicanor Pérez Meyer http://perezmeyer.com.ar/ http://perezmeyer.blogspot.com/
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