b7c7684ae2
libstdc++ before gcc r244057 expected that libc provided __cxa_thread_atexit_impl, and libstdc++ implemented __cxa_thread_atexit, by forwarding the calls to _impl. Mentioned gcc revision checks for __cxa_thread_atexit in libc and does not provide the symbol from libstdc++ if found. This change helps older gcc, in particular, all released versions which implement thread_local, by consolidating the implementation into libc. For that versions, if configured with the current libc, the __cxa_thread_atexit is exported from libstdc++ as a trivial wrapper around libc::__cxa_thread_atexit_impl. The __cxa_thread_atexit implementation is put into separate source file to allow for static linking with older libstdc++.a. gcc bugzilla: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78968 Reported by: Hannes Hauswedell <h2+fbsdports@fsfe.org> PR: 215709 Sponsored by: The FreeBSD Foundation MFC after: 2 weeks
130 lines
1.3 KiB
Plaintext
130 lines
1.3 KiB
Plaintext
/*
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* $FreeBSD$
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*/
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FBSD_1.0 {
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_Exit;
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a64l;
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abort;
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abs;
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atexit;
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__cxa_atexit;
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__cxa_finalize;
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atof;
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atoi;
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atol;
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atoll;
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bsearch;
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div;
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__isthreaded;
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exit;
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getenv;
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opterr;
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optind;
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optopt;
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optreset;
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optarg;
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getopt;
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getopt_long;
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getopt_long_only;
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suboptarg;
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getsubopt;
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grantpt;
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ptsname;
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unlockpt;
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hcreate;
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hdestroy;
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hsearch;
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heapsort;
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imaxabs;
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imaxdiv;
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insque;
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l64a;
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l64a_r;
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labs;
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ldiv;
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llabs;
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lldiv;
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lsearch;
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lfind;
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mergesort;
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putenv;
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qsort_r;
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qsort;
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radixsort;
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sradixsort;
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rand_r;
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rand;
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srand;
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sranddev;
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srandom;
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srandomdev;
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initstate;
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setstate;
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random;
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reallocf;
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realpath;
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remque;
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setenv;
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unsetenv;
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strfmon;
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strtoimax;
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strtol;
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strtoll;
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strtonum;
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strtoq;
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strtoul;
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strtoull;
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strtoumax;
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strtouq;
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system;
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tdelete;
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tfind;
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tsearch;
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twalk;
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};
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FBSD_1.3 {
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at_quick_exit;
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atof_l;
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atoi_l;
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atol_l;
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atoll_l;
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quick_exit;
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strtod_l;
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strtof_l;
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strtoimax_l;
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strtol_l;
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strtold_l;
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strtoll_l;
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strtoq_l;
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strtoul_l;
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strtoull_l;
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strtoumax_l;
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strtouq_l;
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};
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FBSD_1.4 {
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atexit_b;
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bsearch_b;
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heapsort_b;
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mergesort_b;
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qsort_b;
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hcreate_r;
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hdestroy_r;
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hsearch_r;
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reallocarray;
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};
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FBSD_1.5 {
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__cxa_thread_atexit;
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__cxa_thread_atexit_impl;
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};
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FBSDprivate_1.0 {
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__system;
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_system;
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__libc_system;
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__cxa_thread_call_dtors;
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};
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