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authorJoseph Myers <joseph@codesourcery.com>2018-02-19 17:32:34 +0000
committerJoseph Myers <joseph@codesourcery.com>2018-02-19 17:32:34 +0000
commitec481ad81b0436460de417a8e0084935b3763ebb (patch)
tree528d4f8b06ffe536af6ec50afb144aff6d682bca /include/stdio.h
parent7d15ef84f50a80cb170f8ce3457010f59e221cb8 (diff)
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Fix -Os ferror_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 ferror_unlocked. The usual approach is followed of adding __ferror_unlocked (inlined when ferror_unlocked is), making calls use it when required for namespace reasons (only one such call), and using libc_hidden_proto / libc_hidden_weak for the ferror_unlocked weak alias when only localplt but not namespace issues are involved. 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/ferror_u.c (ferror_unlocked): Rename to __ferror_unlocked and define as weak alias of __ferror_unlocked. Use libc_hidden_weak. * include/stdio.h [!_ISOMAC] (ferror_unlocked): Use libc_hidden_proto. [!_ISOMAC] (__ferror_unlocked) New declaration, and inline function if [__USE_EXTERN_INLINES]. * time/getdate.c (__getdate_r): Call __ferror_unlocked instead of ferror_unlocked.
Diffstat (limited to 'include/stdio.h')
-rw-r--r--include/stdio.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/stdio.h b/include/stdio.h
index 7871000071..1bf49a92b5 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -185,6 +185,8 @@ extern __typeof (fputs_unlocked) __fputs_unlocked;
libc_hidden_proto (__fputs_unlocked)
libc_hidden_proto (feof_unlocked)
extern __typeof (feof_unlocked) __feof_unlocked attribute_hidden;
+libc_hidden_proto (ferror_unlocked)
+extern __typeof (ferror_unlocked) __ferror_unlocked attribute_hidden;
libc_hidden_proto (fmemopen)
/* The prototype needs repeating instead of using __typeof to use
__THROW in C++ tests. */
@@ -211,6 +213,12 @@ __NTH (__feof_unlocked (FILE *__stream))
{
return __feof_unlocked_body (__stream);
}
+
+__extern_inline int
+__NTH (__ferror_unlocked (FILE *__stream))
+{
+ return __ferror_unlocked_body (__stream);
+}
# endif
# endif /* not _ISOMAC */