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af39b1c216
commit 3322c5d9a1 ("Remove unneeded explicit .o targets") broke the
build with clang, because -Wno-format-nonliteral was in fact needed.
This patch fixes the problem by introducing
DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL and using it in printcmd.c. This
seems preferable to reverting the patch because now the warning
suppression is more targeted.
gdb/ChangeLog
2018-09-05 Simon Marchi <simon.marchi@ericsson.com>
* printcmd.c (printf_c_string): Use
DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL.
(printf_wide_c_string, printf_pointer, ui_printf): Likewise.
include/ChangeLog
2018-09-05 Simon Marchi <simon.marchi@ericsson.com>
* diagnostics.h (DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL): New macro.
108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/* Copyright (C) 2017-2018 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef DIAGNOSTICS_H
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#define DIAGNOSTICS_H
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/* If at all possible, fix the source rather than using these macros
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to silence warnings. If you do use these macros be aware that
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you'll need to condition their use on particular compiler versions,
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which can be done for gcc using ansidecl.h's GCC_VERSION macro.
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gcc versions between 4.2 and 4.6 do not allow pragma control of
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diagnostics inside functions, giving a hard error if you try to use
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the finer control available with later versions.
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gcc prior to 4.2 warns about diagnostic push and pop.
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The other macros have restrictions too, for example gcc-5, gcc-6
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and gcc-7 warn that -Wstringop-truncation is unknown, unless you
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also add DIAGNOSTIC_IGNORE ("-Wpragma"). */
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#ifdef __GNUC__
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# define DIAGNOSTIC_PUSH _Pragma ("GCC diagnostic push")
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# define DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
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/* Stringification. */
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# define DIAGNOSTIC_STRINGIFY_1(x) #x
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# define DIAGNOSTIC_STRINGIFY(x) DIAGNOSTIC_STRINGIFY_1 (x)
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# define DIAGNOSTIC_IGNORE(option) \
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_Pragma (DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored option))
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#else
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# define DIAGNOSTIC_PUSH
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# define DIAGNOSTIC_POP
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# define DIAGNOSTIC_IGNORE(option)
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#endif
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#if defined (__clang__) /* clang */
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# define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move")
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# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \
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DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations")
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# define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
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DIAGNOSTIC_IGNORE ("-Wdeprecated-register")
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# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \
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DIAGNOSTIC_IGNORE ("-Wunused-function")
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# if __has_warning ("-Wenum-compare-switch")
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# define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES \
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DIAGNOSTIC_IGNORE ("-Wenum-compare-switch")
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# endif
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# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
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DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
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#elif defined (__GNUC__) /* GCC */
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# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \
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DIAGNOSTIC_IGNORE ("-Wunused-function")
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# define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \
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DIAGNOSTIC_IGNORE ("-Wstringop-truncation")
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# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
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DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
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#endif
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#ifndef DIAGNOSTIC_IGNORE_SELF_MOVE
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# define DIAGNOSTIC_IGNORE_SELF_MOVE
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#endif
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#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
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# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
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#endif
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#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
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# define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
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#endif
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#ifndef DIAGNOSTIC_IGNORE_UNUSED_FUNCTION
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# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION
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#endif
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#ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
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# define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
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#endif
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#ifndef DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
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# define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
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#endif
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#ifndef DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
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# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
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#endif
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#endif /* DIAGNOSTICS_H */
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