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40dfb28b56
gdbsupport/errors.h declares perror_with_name and leaves the implementation to the clients. However gdb and gdbserver's implementations are essentially the same, resulting in unnecessary code duplication. Fix this by implementing perror_with_name in gdbsupport. Add an optional parameter for specifying the errno used to generate the error message. Also move the implementation of perror_string to gdbsupport since perror_with_name requires it. Approved-By: Tom Tromey <tom@tromey.com>
126 lines
4.7 KiB
C++
126 lines
4.7 KiB
C++
/* Declarations for error-reporting facilities.
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Copyright (C) 1986-2023 Free Software Foundation, Inc.
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This file is part of GDB.
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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 COMMON_ERRORS_H
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#define COMMON_ERRORS_H
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/* A problem was detected, but the requested operation can still
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proceed. A warning message is constructed using a printf- or
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vprintf-style argument list. The function "vwarning" must be
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provided by the client. */
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extern void warning (const char *fmt, ...)
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ATTRIBUTE_PRINTF (1, 2);
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extern void vwarning (const char *fmt, va_list args)
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ATTRIBUTE_PRINTF (1, 0);
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/* A non-predictable, non-fatal error was detected. The requested
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operation cannot proceed. An error message is constructed using
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a printf- or vprintf-style argument list. These functions do not
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return. The function "verror" must be provided by the client. */
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extern void error (const char *fmt, ...)
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ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
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extern void verror (const char *fmt, va_list args)
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ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
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/* An internal error was detected. Internal errors indicate
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programming errors such as assertion failures, as opposed to
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more general errors beyond the application's control. These
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functions do not return. An error message is constructed using
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a printf- or vprintf-style argument list. FILE and LINE
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indicate the file and line number where the programming error
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was detected. Most client code should call the internal_error
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wrapper macro instead, which expands the source location
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automatically. The function "internal_verror" must be provided
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by the client. */
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extern void internal_error_loc (const char *file, int line,
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const char *fmt, ...)
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ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 4);
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#define internal_error(fmt, ...) \
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internal_error_loc (__FILE__, __LINE__, fmt, ##__VA_ARGS__)
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extern void internal_verror (const char *file, int line,
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const char *fmt, va_list args)
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ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);
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/* An internal problem was detected, but the requested operation can
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still proceed. Internal warnings indicate programming errors as
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opposed to more general issues beyond the application's control.
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A warning message is constructed using a printf- or vprintf-style
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argument list. The function "internal_vwarning" must be provided
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by the client. */
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extern void internal_warning_loc (const char *file, int line,
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const char *fmt, ...)
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ATTRIBUTE_PRINTF (3, 4);
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#define internal_warning(fmt, ...) \
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internal_warning_loc (__FILE__, __LINE__, fmt, ##__VA_ARGS__)
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extern void internal_vwarning (const char *file, int line,
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const char *fmt, va_list args)
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ATTRIBUTE_PRINTF (3, 0);
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/* Return a newly allocated string, containing the PREFIX followed
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by the system error message for errno (separated by a colon).
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If ERRNUM is given, then use it in place of errno. */
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extern std::string perror_string (const char *prefix, int errnum = 0);
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/* Like "error", but the error message is constructed by combining
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STRING with the system error message for errno. If ERRNUM is given,
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then use it in place of errno. This function does not return. */
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extern void perror_with_name (const char *string, int errnum = 0)
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ATTRIBUTE_NORETURN;
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/* Call this function to handle memory allocation failures. This
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function does not return. This function must be provided by the
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client. */
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extern void malloc_failure (long size) ATTRIBUTE_NORETURN;
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/* Flush stdout and stderr. Must be provided by the client. */
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extern void flush_streams ();
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#if defined(USE_WIN32API) || defined(__CYGWIN__)
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/* Map the Windows error number in ERROR to a locale-dependent error
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message string and return a pointer to it. Typically, the values
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for ERROR come from GetLastError.
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The string pointed to shall not be modified by the application,
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but may be overwritten by a subsequent call to strwinerror
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The strwinerror function does not change the current setting
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of GetLastError. */
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extern const char *strwinerror (ULONGEST error);
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#endif /* USE_WIN32API */
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#endif /* COMMON_ERRORS_H */
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