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17c199ee92
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.
16 lines
359 B
C
16 lines
359 B
C
#ifndef _NETINET_IN_H
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#include <inet/netinet/in.h>
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#ifndef _ISOMAC
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libc_hidden_proto (bindresvport)
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libc_hidden_proto (in6addr_loopback)
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extern __typeof (in6addr_loopback) __in6addr_loopback;
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libc_hidden_proto (__in6addr_loopback)
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libc_hidden_proto (in6addr_any)
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extern __typeof (in6addr_any) __in6addr_any;
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libc_hidden_proto (__in6addr_any)
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#endif
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#endif
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