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| author | Joseph Myers <joseph@codesourcery.com> | 2015-06-17 20:08:22 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-06-17 20:08:22 +0000 |
| commit | 17c199ee92e4ca8a34a47c42924608a25a444eb2 (patch) | |
| tree | eb24c1f1561542b1540162636d5c55cb48462cbb /conform | |
| parent | c10b9b13f7471b08273effc8cd7e51b119df9348 (diff) | |
| download | glibc-17c199ee92e4ca8a34a47c42924608a25a444eb2.tar.gz glibc-17c199ee92e4ca8a34a47c42924608a25a444eb2.tar.xz glibc-17c199ee92e4ca8a34a47c42924608a25a444eb2.zip | |
Fix gethostbyaddr in6addr_any, in6addr_loopback namespace (bug 18532).
gethostbyaddr brings in references to in6addr_any and thereby in6addr_loopback, which aren't in all the standards containing gethostbyaddr (gethostbyaddr is in XPG4 and UNIX98, in6addr_any and in6addr_loopback are new in POSIX.1:2001). This patch fixes this by making those symbols into weak aliases (safe in this case, unlike for most data symbols, because these data symbols are const). Tested for x86_64 and x86 (testsuite, and comparison of disassembly of installed stripped shared libraries). Disassembly is unchanged for x86_64; for x86, I see some changes of stack offsets, but no other code generation changes or code size differences. [BZ #18532] * inet/in6_addr.c (in6addr_any): Rename to __in6addr_any and define as weak alias of __in6addr_any. Use libc_hidden_data_weak. (in6addr_loopback): Rename to __in6addr_loopback and define as weak alias of __in6addr_loopback. Use libc_hidden_data_weak. * include/netinet/in.h (__in6addr_loopback): Declare. Use libc_hidden_proto. (__in6addr_any): Likewise. * inet/gethstbyad_r.c (PREPROCESS): Use __in6addr_any instead of in6addr_any. * conform/Makefile (test-xfail-XPG4/netdb.h/linknamespace): Remove variable. (test-xfail-UNIX98/netdb.h/linknamespace): Likewise.
Diffstat (limited to 'conform')
| -rw-r--r-- | conform/Makefile | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/conform/Makefile b/conform/Makefile index 522249ad6a..9ad760187d 100644 --- a/conform/Makefile +++ b/conform/Makefile @@ -346,14 +346,12 @@ test-xfail-XOPEN2K8/ndbm.h/linknamespace = yes # Unsorted expected failures. test-xfail-XPG3/unistd.h/linknamespace = yes test-xfail-XPG4/fmtmsg.h/linknamespace = yes -test-xfail-XPG4/netdb.h/linknamespace = yes test-xfail-XPG4/syslog.h/linknamespace = yes test-xfail-XPG4/unistd.h/linknamespace = yes test-xfail-POSIX/mqueue.h/linknamespace = yes test-xfail-POSIX/semaphore.h/linknamespace = yes test-xfail-UNIX98/fmtmsg.h/linknamespace = yes test-xfail-UNIX98/mqueue.h/linknamespace = yes -test-xfail-UNIX98/netdb.h/linknamespace = yes test-xfail-UNIX98/syslog.h/linknamespace = yes test-xfail-UNIX98/unistd.h/linknamespace = yes test-xfail-UNIX98/wchar.h/linknamespace = yes |