linux: Move {f}xstat{at} to compat symbols

They are no interna uses anymore.  The riscv32 ABI was added on 2.33,
so it is safe to remove the old __{f,l}stat{at} symbols and just
provide the newer {f,l}stat{at} ones.

Checked with a build for all affected ABIs. I also checked on x86_64,
i686, powerpc, powerpc64le, sparcv9, sparc64, s390, and s390x.

Reviewed-by: Lukasz Majewski <lukma@denx.de>

4 files changed, 41 insertions, 4 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/fxstat64.c b/sysdeps/unix/sysv/linux/alpha/fxstat64.c
index 9d6b8ec..bcfb550 100644
--- a/sysdeps/unix/sysv/linux/alpha/fxstat64.c
+++ b/sysdeps/unix/sysv/linux/alpha/fxstat64.c
@@ -22,9 +22,11 @@
 #include <kernel_stat.h>
 #include <sysdep.h>
 #include <xstatconv.h>
+#include <shlib-compat.h>
 
 /* Get information about the file NAME in BUF.  */
 int
+attribute_compat_text_section
 __fxstat64 (int vers, int fd, struct stat64 *buf)
 {
   switch (vers)
@@ -42,4 +44,12 @@ __fxstat64 (int vers, int fd, struct stat64 *buf)
       }
     }
 }
-strong_alias (__fxstat64, __fxstat);
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33)
+strong_alias (__fxstat64, __fxstat_compat)
+compat_symbol (libc, __fxstat_compat, __fxstat, GLIBC_2_0);
+#endif
+
+#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_33)
+compat_symbol (libc, __fxstat64, __fxstat64, GLIBC_2_1);
+#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/fxstatat64.c b/sysdeps/unix/sysv/linux/alpha/fxstatat64.c
index 997fb87..fa3074e 100644
--- a/sysdeps/unix/sysv/linux/alpha/fxstatat64.c
+++ b/sysdeps/unix/sysv/linux/alpha/fxstatat64.c
@@ -22,11 +22,18 @@
 #include <kernel_stat.h>
 #include <sysdep.h>
 #include <xstatconv.h>
+#include <shlib-compat.h>
 
+#if SHLIB_COMPAT(libc, GLIBC_2_4, GLIBC_2_33)
 /* Get information about the file NAME in BUF.  */
 int
+attribute_compat_text_section
 __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag)
 {
   return INLINE_SYSCALL_CALL (fstatat64, fd, file, st, flag);
 }
-strong_alias (__fxstatat64, __fxstatat);
+strong_alias (__fxstatat64, __fxstatat_compat)
+compat_symbol (libc, __fxstatat_compat, __fxstatat, GLIBC_2_4);
+
+compat_symbol (libc, __fxstatat64, __fxstatat64, GLIBC_2_4);
+#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/lxstat64.c b/sysdeps/unix/sysv/linux/alpha/lxstat64.c
index 38f132f..7424b2f 100644
--- a/sysdeps/unix/sysv/linux/alpha/lxstat64.c
+++ b/sysdeps/unix/sysv/linux/alpha/lxstat64.c
@@ -23,9 +23,11 @@
 #include <kernel_stat.h>
 #include <sysdep.h>
 #include <xstatconv.h>
+#include <shlib-compat.h>
 
 /* Get information about the file NAME in BUF.  */
 int
+attribute_compat_text_section
 __lxstat64 (int vers, const char *name, struct stat64 *buf)
 {
   switch (vers)
@@ -43,4 +45,12 @@ __lxstat64 (int vers, const char *name, struct stat64 *buf)
       }
     }
 }
-weak_alias (__lxstat64, __lxstat);
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33)
+strong_alias (__lxstat64, __lxstat_compat)
+compat_symbol (libc, __lxstat_compat, __lxstat, GLIBC_2_0);
+#endif
+
+#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_33)
+compat_symbol (libc, __lxstat64, __lxstat64, GLIBC_2_1);
+#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/xstat64.c b/sysdeps/unix/sysv/linux/alpha/xstat64.c
index c856c95..59f7dda 100644
--- a/sysdeps/unix/sysv/linux/alpha/xstat64.c
+++ b/sysdeps/unix/sysv/linux/alpha/xstat64.c
@@ -23,9 +23,11 @@
 #include <kernel_stat.h>
 #include <sysdep.h>
 #include <xstatconv.h>
+#include <shlib-compat.h>
 
 /* Get information about the file NAME in BUF.  */
 int
+attribute_compat_text_section
 __xstat64 (int vers, const char *name, struct stat64 *buf)
 {
   switch (vers)
@@ -43,4 +45,12 @@ __xstat64 (int vers, const char *name, struct stat64 *buf)
       }
     }
 }
-weak_alias (__xstat64, __xstat);
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33)
+strong_alias (__xstat64, __xstat_compat)
+compat_symbol (libc, __xstat_compat, __xstat, GLIBC_2_0);
+#endif
+
+#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_33)
+compat_symbol (libc, __xstat64, __xstat64, GLIBC_2_1);
+#endif