[PATCH v2 2/3] locale: Use compat_symbol_reference in _nl_postload_ctype

[Florian Weimer <fweimer@redhat.com>]

These symbol usages are not definitions, so compat_symbol_reference is
more appropriate than compat_symbol.  compat_symbol_reference is also
safe to emit multiple times (in case the inline assembly is
duplicated; this is possible because it is nested in a function).
compat_symbol does not necessarily have this property because it is
intended to provide a symbol definition.
---
 locale/lc-ctype.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/locale/lc-ctype.c b/locale/lc-ctype.c
index 1db0605c82..7c97480cbd 100644
--- a/locale/lc-ctype.c
+++ b/locale/lc-ctype.c
@@ -93,12 +93,14 @@ _nl_postload_ctype (void)
      We need those relocations so that a versioned definition with a COPY
      reloc in an executable will override the libc.so definition.  */
 
-compat_symbol (libc, __ctype_b, __ctype_b, GLIBC_2_0);
-compat_symbol (libc, __ctype_tolower, __ctype_tolower, GLIBC_2_0);
-compat_symbol (libc, __ctype_toupper, __ctype_toupper, GLIBC_2_0);
-compat_symbol (libc, __ctype32_b, __ctype32_b, GLIBC_2_0);
-compat_symbol (libc, __ctype32_tolower, __ctype32_tolower, GLIBC_2_2);
-compat_symbol (libc, __ctype32_toupper, __ctype32_toupper, GLIBC_2_2);
+compat_symbol_reference (libc, __ctype_b, __ctype_b, GLIBC_2_0);
+compat_symbol_reference (libc, __ctype_tolower, __ctype_tolower, GLIBC_2_0);
+compat_symbol_reference (libc, __ctype_toupper, __ctype_toupper, GLIBC_2_0);
+compat_symbol_reference (libc, __ctype32_b, __ctype32_b, GLIBC_2_0);
+compat_symbol_reference (libc, __ctype32_tolower, __ctype32_tolower,
+			  GLIBC_2_2);
+compat_symbol_reference (libc, __ctype32_toupper, __ctype32_toupper,
+			 GLIBC_2_2);
 
   __ctype_b = current (uint16_t, CLASS, 128);
   __ctype_toupper = current (int32_t, TOUPPER, 128);
-- 
2.30.2