On 7/25/21 4:28 AM, Florian Weimer wrote: > * Sandro Mani: > >> I'd need help with the following issue with apitrace, which failed the >> mass rebuild with: >> >> apitrace-9d42f667e2a36a6624d92b9bd697de097cc4e619/wrappers/dlsym.cpp:70: >> undefined reference to `__libc_dlopen_mode' >> apitrace-9d42f667e2a36a6624d92b9bd697de097cc4e619/wrappers/dlsym.cpp:72: >> undefined reference to `__libc_dlsym' >> >> The code triggering this is below. Have these symbols disappeared from >> libc resp is there any alternative? > > These internal GLIBC_PRIVATE symbols are gone and won't come back. > > Not sure why this code isn't using RTLD_NEXT. >
Because they're interposing dlsym itself and attempting to call dlsym(RTLD_NEXT, ...) resolves to the interposed dlsym function and dies due to infinite recursion. > We are working on improving LD_AUDIT support, which is the plugin API of > the dynamic loader. It can in theory be used to implement such things. > But API tracing is probably best implemented within the traced libraries > themselves, rather than on the side. > This isn't viable when you have multiple libraries from different vendors, some or all of which are beyond your control. _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
