[glibc] Change _IO_stderr_/_IO_stdin_/_IO_stdout to compat symbols [BZ #31766]

H.J. Lu hjl@sourceware.org
Tue May 21 17:12:40 GMT 2024


https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=85472c20a55ea2a49a7fbdf71652b4009118b0ae

commit 85472c20a55ea2a49a7fbdf71652b4009118b0ae
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon May 20 19:30:58 2024 -0700

    Change _IO_stderr_/_IO_stdin_/_IO_stdout to compat symbols [BZ #31766]
    
    Since Glibc never provides symbol binary compatibility for relocatable
    files, fix BZ #31766 by changing _IO_stderr_/_IO_stdin_/_IO_stdout to
    compat symbols.
    
    Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
    Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>

Diff:
---
 libio/oldstdfiles.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libio/oldstdfiles.c b/libio/oldstdfiles.c
index 30581dfad4..a6a908a248 100644
--- a/libio/oldstdfiles.c
+++ b/libio/oldstdfiles.c
@@ -48,6 +48,10 @@ DEF_STDFILE(_IO_stdin_, 0, 0, _IO_NO_WRITES);
 DEF_STDFILE(_IO_stdout_, 1, &_IO_stdin_, _IO_NO_READS);
 DEF_STDFILE(_IO_stderr_, 2, &_IO_stdout_, _IO_NO_READS+_IO_UNBUFFERED);
 
+compat_symbol (libc, _IO_stdin_, _IO_stdin_, GLIBC_2_0);
+compat_symbol (libc, _IO_stdout_, _IO_stdout_, GLIBC_2_0);
+compat_symbol (libc, _IO_stderr_, _IO_stderr_, GLIBC_2_0);
+
 #if defined __GNUC__ && __GNUC__ >= 2
 
 #include <stdio.h>


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