stdio: Remove the usage of $(fno-unit-at-a-time) for errlist.c

The errlist.c is built with -fno-toplevel-reorder to avoid compiler to
reorder the compat assembly directives due an assembler issue [1]
(fixed on 2.39).

This patch removes the compiler flags by split the compat symbol
generation in two phases.  First the _sys_errlist_internal internal
without any compat symbol directive is preprocessed to generate an
assembly source code.  This generate assembly is then used as input
on a platform agnostic errlist-data.S which then creates the compat
definitions.  This prevents compiler to move any compat directive
prior the _sys_errlist_internal definition itself.

Checked on a make check run-built-tests=no on all affected ABIs.

[1] https://sourceware.org/bugzilla/show_bug.cgi?id=29012

7 files changed, 28 insertions, 14 deletions

diff --git a/sysdeps/mach/hurd/errlist.c b/sysdeps/mach/hurd/err_map.h
index 2d782ff..22d21ca 100644
--- a/sysdeps/mach/hurd/errlist.c
+++ b/sysdeps/mach/hurd/err_map.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1998-2022 Free Software Foundation, Inc.
+/* Internal errno names mapping definition.  Hurd version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -15,7 +16,11 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
+#ifndef _ERR_MAP_H
+#define _ERR_MAP_H
+
 #include <mach/error.h>
 
 #define ERR_MAP(value) err_get_code (value)
-#include <stdio-common/errlist.c>
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/errlist-compat.c b/sysdeps/unix/sysv/linux/alpha/errlist-compat-data.h
index 9c0ed1e..9c0ed1e 100644
--- a/sysdeps/unix/sysv/linux/alpha/errlist-compat.c
+++ b/sysdeps/unix/sysv/linux/alpha/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/errlist-compat.c b/sysdeps/unix/sysv/linux/errlist-compat-data.h
index 1a779ac..1a779ac 100644
--- a/sysdeps/unix/sysv/linux/errlist-compat.c
+++ b/sysdeps/unix/sysv/linux/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/errlist-compat.h b/sysdeps/unix/sysv/linux/errlist-compat.h
index a09b38f..3300886 100644
--- a/sysdeps/unix/sysv/linux/errlist-compat.h
+++ b/sysdeps/unix/sysv/linux/errlist-compat.h
@@ -20,6 +20,7 @@
 #define _ERRLIST_COMPAT_H
 
 #include <shlib-compat.h>
+#include <limits.h>
 
 /* Define new compat symbols for symbols  _sys_errlist, sys_errlist,
    _sys_nerr, and sys_nerr for version VERSION with NUMBERERR times number of
@@ -27,17 +28,25 @@
    Both _sys_errlist and sys_errlist alias to _sys_errlist_internal symbol
    (defined on errlist.c) while _sys_nerr and sys_nerr created new variable
    with the expected size.  */
-#define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) 			     \
-  const int __##VERSION##_sys_nerr = NUMBERERR;				     \
-  strong_alias (__##VERSION##_sys_nerr, __##VERSION##__sys_nerr); 	     \
-  declare_symbol_alias (__ ## VERSION ## _sys_errlist, _sys_errlist_internal,\
-			object, NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH));    \
-  declare_symbol_alias (__ ## VERSION ## __sys_errlist,			     \
-			_sys_errlist_internal, object,			     \
-			NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH));	     \
-  compat_symbol (libc, __## VERSION ## _sys_nerr, sys_nerr, VERSION);	     \
-  compat_symbol (libc, __## VERSION ## __sys_nerr, _sys_nerr, VERSION);      \
-  compat_symbol (libc, __## VERSION ## _sys_errlist, sys_errlist, VERSION);  \
-  compat_symbol (libc, __## VERSION ## __sys_errlist, _sys_errlist, VERSION);\
+#ifdef __ASSEMBLER__
+# define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) 			    \
+  declare_object_symbol_alias (__ ## VERSION ## _sys_errlist,		    \
+			       _sys_errlist_internal,			    \
+			       NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH))	    \
+			       ASM_LINE_SEP				    \
+  declare_object_symbol_alias (__ ## VERSION ## __sys_errlist,		    \
+			       _sys_errlist_internal, 			    \
+			       NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH))	    \
+			       ASM_LINE_SEP				    \
+  compat_symbol (libc, __## VERSION ## _sys_errlist, sys_errlist, VERSION)  \
+		 ASM_LINE_SEP						    \
+  compat_symbol (libc, __## VERSION ## __sys_errlist, _sys_errlist, VERSION)
+#else
+# define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) 			    \
+  const int __##VERSION##_sys_nerr = NUMBERERR;				    \
+  strong_alias (__##VERSION##_sys_nerr, __##VERSION##__sys_nerr);	    \
+  compat_symbol (libc, __## VERSION ## _sys_nerr, sys_nerr, VERSION);	    \
+  compat_symbol (libc, __## VERSION ## __sys_nerr, _sys_nerr, VERSION);
+#endif
 
 #endif
diff --git a/sysdeps/unix/sysv/linux/hppa/errlist-compat.c b/sysdeps/unix/sysv/linux/hppa/errlist-compat-data.h
index bb5c95c..bb5c95c 100644
--- a/sysdeps/unix/sysv/linux/hppa/errlist-compat.c
+++ b/sysdeps/unix/sysv/linux/hppa/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/mips/errlist-compat.c b/sysdeps/unix/sysv/linux/mips/errlist-compat-data.h
index 2ad8ac1..2ad8ac1 100644
--- a/sysdeps/unix/sysv/linux/mips/errlist-compat.c
+++ b/sysdeps/unix/sysv/linux/mips/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/sparc/errlist-compat.c b/sysdeps/unix/sysv/linux/sparc/errlist-compat-data.h
index b7a43d3..b7a43d3 100644
--- a/sysdeps/unix/sysv/linux/sparc/errlist-compat.c
+++ b/sysdeps/unix/sysv/linux/sparc/errlist-compat-data.h