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authorJoseph Myers <joseph@codesourcery.com>2018-02-15 20:57:15 +0000
committerJoseph Myers <joseph@codesourcery.com>2018-02-15 20:57:15 +0000
commit7fc03cf320f9ed0178babbb33de0550d393b8886 (patch)
treecde5c33ae087157df65748a4a4d2b96cffdbf41a /libio
parent0c8a67a5737b4b6dd74bd24219fc642c8d244bee (diff)
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Fix -Os feof_unlocked linknamespace, localplt issues (bug 15105, bug 19463).
Continuing the fixes for linknamespace and localplt test failures with -Os that arise from functions not being inlined in that case, this patch fixes such failures for feof_unlocked. The usual approach is followed of adding __feof_unlocked (inlined when feof_unlocked is), making calls use it when required for namespace reasons, and using libc_hidden_proto / libc_hidden_weak for the feof_unlocked weak alias when only localplt but not namespace issues are involved. In the case of getaddrinfo.c, use of __feof_unlocked needs to be conditional since that code is also used in nscd (where __feof_unlocked is not available). Tested for x86_64 (both without -Os to make sure that case continues to work, and with -Os to make sure all the relevant linknamespace and localplt test failures are resolved). Because of other such failures that remain after this patch, neither of the bugs can yet be closed. [BZ #15105] [BZ #19463] * libio/feof_u.c (feof_unlocked): Rename to __feof_unlocked and define as weak alias of __feof_unlocked. Use libc_hidden_weak. * include/stdio.h (feof_unlocked): Use libc_hidden_proto. (__feof_unlocked): New declaration, and inline function if [__USE_EXTERN_INLINES]. * iconv/gconv_conf.c (read_conf_file): Call __feof_unlocked instead of feof_unlocked. * intl/localealias.c [_LIBC] (FEOF): Likewise. * nss/nsswitch.c (nss_parse_file): Likewise. * sysdeps/unix/sysv/linux/readonly-area.c (__readonly_area): Likewise. * time/getdate.c (__getdate_r): Likewise. * sysdeps/posix/getaddrinfo.c [IS_IN (libc)] (feof_unlocked): Define as macro to call __feof_unlocked.
Diffstat (limited to 'libio')
-rw-r--r--libio/feof_u.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libio/feof_u.c b/libio/feof_u.c
index 581808e..9239144 100644
--- a/libio/feof_u.c
+++ b/libio/feof_u.c
@@ -30,8 +30,10 @@
#undef feof_unlocked
int
-feof_unlocked (_IO_FILE *fp)
+__feof_unlocked (_IO_FILE *fp)
{
CHECK_FILE (fp, EOF);
return _IO_feof_unlocked (fp);
}
+weak_alias (__feof_unlocked, feof_unlocked)
+libc_hidden_weak (feof_unlocked)