Warn if add-symbol-file does not provide any symbols

[deliverable/binutils-gdb.git] / gdb / common / common-defs.h

diff --git a/gdb/common/common-defs.h b/gdb/common/common-defs.h
index eedc318cac668d33b9e51c2453c65469d29748db..8c164926db0fc21ff8f8add08bab1644e2898077 100644 (file)
--- a/gdb/common/common-defs.h
+++ b/gdb/common/common-defs.h
@@ -1,6 +1,6 @@
 /* Common definitions.
 
-   Copyright (C) 1986-2014 Free Software Foundation, Inc.
+   Copyright (C) 1986-2019 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -17,21 +17,134 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifndef COMMON_DEFS_H
-#define COMMON_DEFS_H
+#ifndef COMMON_COMMON_DEFS_H
+#define COMMON_COMMON_DEFS_H
 
 #include "config.h"
+
+#undef PACKAGE_NAME
+#undef PACKAGE_VERSION
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+
 #ifdef GDBSERVER
 #include "build-gnulib-gdbserver/config.h"
 #else
 #include "build-gnulib/config.h"
 #endif
 
+#undef PACKAGE_NAME
+#undef PACKAGE_VERSION
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+
+/* From:
+    https://www.gnu.org/software/gnulib/manual/html_node/stdint_002eh.html
+
+   "On some hosts that predate C++11, when using C++ one must define
+   __STDC_CONSTANT_MACROS to make visible the definitions of constant
+   macros such as INTMAX_C, and one must define __STDC_LIMIT_MACROS to
+   make visible the definitions of limit macros such as INTMAX_MAX.".
+
+   And:
+    https://www.gnu.org/software/gnulib/manual/html_node/inttypes_002eh.html
+
+   "On some hosts that predate C++11, when using C++ one must define
+   __STDC_FORMAT_MACROS to make visible the declarations of format
+   macros such as PRIdMAX."
+
+   Must do this before including any system header, since other system
+   headers may include stdint.h/inttypes.h.  */
+#define __STDC_CONSTANT_MACROS 1
+#define __STDC_LIMIT_MACROS 1
+#define __STDC_FORMAT_MACROS 1
+
+/* Some distros enable _FORTIFY_SOURCE by default, which on occasion
+   has caused build failures with -Wunused-result when a patch is
+   developed on a distro that does not enable _FORTIFY_SOURCE.  We
+   enable it here in order to try to catch these problems earlier;
+   plus this seems like a reasonable safety measure.  The check for
+   optimization is required because _FORTIFY_SOURCE only works when
+   optimization is enabled.  If _FORTIFY_SOURCE is already defined,
+   then we don't do anything.  */
+
+#if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
+#define _FORTIFY_SOURCE 2
+#endif
+
+/* We don't support Windows versions before XP, so we define
+   _WIN32_WINNT correspondingly to ensure the Windows API headers
+   expose the required symbols.  */
+#if defined (__MINGW32__) || defined (__CYGWIN__)
+# ifdef _WIN32_WINNT
+#  if _WIN32_WINNT < 0x0501
+#   undef _WIN32_WINNT
+#   define _WIN32_WINNT 0x0501
+#  endif
+# else
+#  define _WIN32_WINNT 0x0501
+# endif
+#endif /* __MINGW32__ || __CYGWIN__ */
+
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <stdarg.h>
 #include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>   /* for strcasecmp and strncasecmp */
+#endif
+#include <errno.h>
+#include <alloca.h>
+
 #include "ansidecl.h"
+/* This is defined by ansidecl.h, but we prefer gnulib's version.  On
+   MinGW, gnulib might enable __USE_MINGW_ANSI_STDIO, which may or not
+   require use of attribute gnu_printf instead of printf.  gnulib
+   checks that at configure time.  Since _GL_ATTRIBUTE_FORMAT_PRINTF
+   is compatible with ATTRIBUTE_PRINTF, simply use it.  */
+#undef ATTRIBUTE_PRINTF
+#define ATTRIBUTE_PRINTF _GL_ATTRIBUTE_FORMAT_PRINTF
+
+#if GCC_VERSION >= 3004
+#define ATTRIBUTE_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
+#else
+#define ATTRIBUTE_UNUSED_RESULT
+#endif
+
 #include "libiberty.h"
+#include "pathmax.h"
+#include "gdb/signals.h"
+#include "gdb_locale.h"
+#include "ptid.h"
+#include "common-types.h"
+#include "common-utils.h"
+#include "gdb_assert.h"
+#include "errors.h"
+#include "print-utils.h"
+#include "common-debug.h"
+#include "cleanups.h"
+#include "common-exceptions.h"
+#include "common/poison.h"
+
+#define EXTERN_C extern "C"
+#define EXTERN_C_PUSH extern "C" {
+#define EXTERN_C_POP }
+
+/* Pull in gdb::unique_xmalloc_ptr.  */
+#include "common/gdb_unique_ptr.h"
+
+/* String containing the current directory (what getwd would return).  */
+extern char *current_directory;
+
+/* sbrk on macOS is not useful for our purposes, since sbrk(0) always
+   returns the same value.  brk/sbrk on macOS is just an emulation
+   that always returns a pointer to a 4MB section reserved for
+   that.  */
+
+#if defined (HAVE_SBRK) && !__APPLE__
+#define HAVE_USEFUL_SBRK 1
+#endif
 
-#endif /* COMMON_DEFS_H */
+#endif /* COMMON_COMMON_DEFS_H */