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Remove __warndecl

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The macro is not used anymore, so remove it and warning-nop.c.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

(cherry-picked from 34aec973e15a81926198f4b71ff99081dff87a92)
This commit is contained in:
Siddhesh Poyarekar 2020-11-05 10:20:32 +05:30
parent 5337b2af4b
commit eba0ce6058
3 changed files with 1 additions and 74 deletions
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2
debug/Makefile
View File

@ -51,7 +51,7 @@ routines = backtrace backtracesyms backtracesymsfd noophooks \
explicit_bzero_chk \
stack_chk_fail fortify_fail \
$(static-only-routines)
static-only-routines := warning-nop stack_chk_fail_local
static-only-routines := stack_chk_fail_local
# Don't add stack_chk_fail_local.o to libc.a since __stack_chk_fail_local
# is an alias of __stack_chk_fail in stack_chk_fail.o.

70
debug/warning-nop.c
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@ -1,70 +0,0 @@
/* Dummy nop functions to elicit link-time warnings.
Copyright (C) 2005-2020 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.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The GNU Lesser General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
Note that people who make modified versions of this file are not
obligated to grant this special exception for their modified
versions; it is their choice whether to do so. The GNU Lesser
General Public License gives permission to release a modified
version without this exception; this exception also makes it
possible to release a modified version which carries forward this
exception.
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
<https://www.gnu.org/licenses/>. */
#include <sys/cdefs.h>
static void
__attribute__ ((used))
nop (void)
{
}
/* Don't insert any other #include's before this #undef! */
#undef __warndecl
#define __warndecl(name, msg) \
extern void name (void) __attribute__ ((alias ("nop"))) attribute_hidden; \
link_warning (name, msg)
#undef __USE_FORTIFY_LEVEL
#define __USE_FORTIFY_LEVEL 99
/* Following here we need an #include for each public header file
that uses __warndecl. */
/* Define away to avoid warnings with compilers that do not have these
builtins. */
#define __builtin___memcpy_chk(dest, src, len, bos) NULL
#define __builtin___memmove_chk(dest, src, len, bos) NULL
#define __builtin___mempcpy_chk(dest, src, len, bos) NULL
#define __builtin___memset_chk(dest, ch, len, bos) NULL
#define __builtin___stpcpy_chk(dest, src, bos) NULL
#define __builtin___strcat_chk(dest, src, bos) NULL
#define __builtin___strcpy_chk(dest, src, bos) NULL
#define __builtin___strncat_chk(dest, src, len, bos) NULL
#define __builtin___strncpy_chk(dest, src, len, bos) NULL
#define __builtin_object_size(bos, level) 0
#include <string.h>

3
misc/sys/cdefs.h
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@ -124,13 +124,10 @@
#define __bos0(ptr) __builtin_object_size (ptr, 0)
#if __GNUC_PREREQ (4,3)
# define __warndecl(name, msg) \
extern void name (void) __attribute__((__warning__ (msg)))
# define __warnattr(msg) __attribute__((__warning__ (msg)))
# define __errordecl(name, msg) \
extern void name (void) __attribute__((__error__ (msg)))
#else
# define __warndecl(name, msg) extern void name (void)
# define __warnattr(msg)
# define __errordecl(name, msg) extern void name (void)
#endif