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| author | Joseph Myers <joseph@codesourcery.com> | 2015-06-17 20:14:18 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-06-17 20:14:18 +0000 |
| commit | eb1fae6a450b3cce5a75c1ed1a734520c56a6457 (patch) | |
| tree | 9cfa82af5f55596737e54409cc328a4ee03c5396 /libio | |
| parent | 68f1ba4ba4b9cb4661ca3ed446d0967ca79c2a47 (diff) | |
| download | glibc-eb1fae6a450b3cce5a75c1ed1a734520c56a6457.tar.gz | |
Fix getpass fflush_unlocked namespace (bug 18540).
The getpass function (XPG3 / XPG4 / UNIX98) calls fflush_unlocked (not
in any of those standards). This patch fixes this by making
fflush_unlocked into a weak alias for __fflush_unlocked and calling
__fflush_unlocked from getpass.
Tested for x86_64 and x86 (testsuite, and that disassembly of
installed stripped shared libraries is unchanged by the patch).
[BZ #18540]
* libio/iofflush.c [!_IO_MTSAFE_IO] (__fflush_unlocked): Define as
strong alias of _IO_fflush. Use libc_hidden_def.
* libio/iofflush_u.c (fflush_unlocked): Rename to
__fflush_unlocked and define as weak alias of __fflush_unlocked.
Use libc_hidden_weak.
* include/stdio.h (__fflush_unlocked): Declare. Use
libc_hidden_proto.
* misc/getpass.c (getpass): Call __fflush_unlocked instead of
fflush_unlocked.
* conform/Makefile (test-xfail-UNIX98/unistd.h/linknamespace):
Remove variable.
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/iofflush.c | 2 | ||||
| -rw-r--r-- | libio/iofflush_u.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/libio/iofflush.c b/libio/iofflush.c index 106f55fd2c..236e145a91 100644 --- a/libio/iofflush.c +++ b/libio/iofflush.c @@ -50,6 +50,8 @@ weak_alias (_IO_fflush, fflush) libc_hidden_weak (fflush) #ifndef _IO_MTSAFE_IO +strong_alias (_IO_fflush, __fflush_unlocked) +libc_hidden_def (__fflush_unlocked) weak_alias (_IO_fflush, fflush_unlocked) libc_hidden_weak (fflush_unlocked) #endif diff --git a/libio/iofflush_u.c b/libio/iofflush_u.c index 6cc325a5b3..e00447991d 100644 --- a/libio/iofflush_u.c +++ b/libio/iofflush_u.c @@ -28,7 +28,7 @@ #include <stdio.h> int -fflush_unlocked (fp) +__fflush_unlocked (fp) _IO_FILE *fp; { if (fp == NULL) @@ -39,4 +39,6 @@ fflush_unlocked (fp) return _IO_SYNC (fp) ? EOF : 0; } } -libc_hidden_def (fflush_unlocked) +libc_hidden_def (__fflush_unlocked) +weak_alias (__fflush_unlocked, fflush_unlocked) +libc_hidden_weak (fflush_unlocked) |