From 3a24ddeab5b7064beaf8165533fbcd2db95d5339 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Thu, 25 Mar 2021 11:05:37 +0100 Subject: Change how the symbol_version_reference macro is defined A subsequent change will require including for defining symbol_version_reference. should not include for _ISOMAC, so it cannot define symbol_version_reference anymore, but symbol_version_reference is needed even for _ISOMAC. Moving the definition of symbol_version_reference to a separate file makes it possible to use a single definition for both cases. Reviewed-by: Adhemerval Zanella --- sysdeps/generic/libc-symver.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 sysdeps/generic/libc-symver.h (limited to 'sysdeps/generic') diff --git a/sysdeps/generic/libc-symver.h b/sysdeps/generic/libc-symver.h new file mode 100644 index 0000000000..11c77ae1cd --- /dev/null +++ b/sysdeps/generic/libc-symver.h @@ -0,0 +1,38 @@ +/* Symbol version management. + Copyright (C) 1995-2021 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +/* This file is included from for !_ISOMAC, and + unconditionally from . */ + +#ifndef _LIBC_SYMVER_H +#define _LIBC_SYMVER_H 1 + +/* Use symbol_version_reference to specify the version a symbol + reference should link to. Use symbol_version or + default_symbol_version for the definition of a versioned symbol. + The difference is that the latter is a no-op in non-shared + builds. */ +#ifdef __ASSEMBLER__ +# define symbol_version_reference(real, name, version) \ + .symver real, name##@##version +#else /* !__ASSEMBLER__ */ +# define symbol_version_reference(real, name, version) \ + __asm__ (".symver " #real "," #name "@" #version) +#endif + +#endif /* _LIBC_SYMVER_H */ -- cgit 1.4.1