diff options
author | Florian Weimer <fweimer@redhat.com> | 2019-02-18 11:49:54 +0100 |
---|---|---|
committer | Florian Weimer <fweimer@redhat.com> | 2019-02-18 16:37:00 +0100 |
commit | a5406364ac949f91867352cb2ae867629f083c5b (patch) | |
tree | 0aeeedc3748d3b21cf8e8ea2e670670df1e441db /libio/stdio.c | |
parent | 6c29942cbf059aca47fd4bbd852ea42c9d46b71f (diff) | |
download | glibc-a5406364ac949f91867352cb2ae867629f083c5b.tar.gz glibc-a5406364ac949f91867352cb2ae867629f083c5b.tar.xz glibc-a5406364ac949f91867352cb2ae867629f083c5b.zip |
libio: Eliminate _IO_stdin, _IO_stdout, _IO_stderr
These variables are only used to determine if a stdio stream is a pre-allocated stream, but it is possible to do so by comparing a FILE * to all pre-allocated stream objects. As a result, it is not necessary to keep those pointers in separate variables. Behavior with symbol interposition is unchanged because _IO_stdin_, _IO_stdout_, _IO_stderr_ are exported, and refer to objects outside of libc if symbol interposition or copy relocations are involved. (The removed variables _IO_stdin, _IO_stdout, _IO_stderr were not exported, of course.)
Diffstat (limited to 'libio/stdio.c')
-rw-r--r-- | libio/stdio.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/libio/stdio.c b/libio/stdio.c index 1294d2842e..522de44a27 100644 --- a/libio/stdio.c +++ b/libio/stdio.c @@ -33,14 +33,3 @@ FILE *stdin = (FILE *) &_IO_2_1_stdin_; FILE *stdout = (FILE *) &_IO_2_1_stdout_; FILE *stderr = (FILE *) &_IO_2_1_stderr_; - -#undef _IO_stdin -#undef _IO_stdout -#undef _IO_stderr -#define AL(name) AL2 (name, _IO_##name) -#define AL2(name, al) \ - extern __typeof (name) al __attribute__ ((alias (#name), \ - visibility ("hidden"))) -AL(stdin); -AL(stdout); -AL(stderr); |