/* Function declarations for libiberty.
+
+ Copyright 2001, 2002 Free Software Foundation, Inc.
+
+ Note - certain prototypes declared in this header file are for
+ functions whoes implementation copyright does not belong to the
+ FSF. Those prototypes are present in this file for reference
+ purposes only and their presence in this file should not construed
+ as an indication of ownership by the FSF of the implementation of
+ those functions in any way or form whatsoever.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
Written by Cygnus Support, 1994.
The libiberty library provides a number of functions which are
#include "ansidecl.h"
+#ifdef ANSI_PROTOTYPES
+/* Get a definition for size_t. */
+#include <stddef.h>
+/* Get a definition for va_list. */
+#include <stdarg.h>
+#endif
+
/* Build an argument vector from a string. Allocates memory using
malloc. Use freeargv to free the vector. */
-extern char **buildargv PARAMS ((char *));
+extern char **buildargv PARAMS ((const char *)) ATTRIBUTE_MALLOC;
/* Free a vector returned by buildargv. */
/* Duplicate an argument vector. Allocates memory using malloc. Use
freeargv to free the vector. */
-extern char **dupargv PARAMS ((char **));
+extern char **dupargv PARAMS ((char **)) ATTRIBUTE_MALLOC;
/* Return the last component of a path name. Note that we can't use a
across different systems, sometimes as "char *" and sometimes as
"const char *" */
-#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__)
+/* HAVE_DECL_* is a three-state macro: undefined, 0 or 1. If it is
+ undefined, we haven't run the autoconf check so provide the
+ declaration without arguments. If it is 0, we checked and failed
+ to find the declaration so provide a fully prototyped one. If it
+ is 1, we found it so don't provide any declaration at all. */
+#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || (defined (HAVE_DECL_BASENAME) && !HAVE_DECL_BASENAME)
extern char *basename PARAMS ((const char *));
#else
+# if !defined (HAVE_DECL_BASENAME)
extern char *basename ();
+# endif
#endif
-/* Concatenate an arbitrary number of strings, up to (char *) NULL.
- Allocates memory using xmalloc. */
+/* A well-defined basename () that is always compiled in. */
+
+extern const char *lbasename PARAMS ((const char *));
+
+/* Concatenate an arbitrary number of strings. You must pass NULL as
+ the last argument of this function, to terminate the list of
+ strings. Allocates memory using xmalloc. */
+
+extern char *concat PARAMS ((const char *, ...)) ATTRIBUTE_MALLOC;
+
+/* Concatenate an arbitrary number of strings. You must pass NULL as
+ the last argument of this function, to terminate the list of
+ strings. Allocates memory using xmalloc. The first argument is
+ not one of the strings to be concatenated, but if not NULL is a
+ pointer to be freed after the new string is created, similar to the
+ way xrealloc works. */
+
+extern char *reconcat PARAMS ((char *, const char *, ...)) ATTRIBUTE_MALLOC;
+
+/* Determine the length of concatenating an arbitrary number of
+ strings. You must pass NULL as the last argument of this function,
+ to terminate the list of strings. */
+
+extern unsigned long concat_length PARAMS ((const char *, ...));
+
+/* Concatenate an arbitrary number of strings into a SUPPLIED area of
+ memory. You must pass NULL as the last argument of this function,
+ to terminate the list of strings. The supplied memory is assumed
+ to be large enough. */
+
+extern char *concat_copy PARAMS ((char *, const char *, ...));
+
+/* Concatenate an arbitrary number of strings into a GLOBAL area of
+ memory. You must pass NULL as the last argument of this function,
+ to terminate the list of strings. The supplied memory is assumed
+ to be large enough. */
+
+extern char *concat_copy2 PARAMS ((const char *, ...));
+
+/* This is the global area used by concat_copy2. */
-extern char *concat PARAMS ((const char *, ...));
+extern char *libiberty_concat_ptr;
+
+/* Concatenate an arbitrary number of strings. You must pass NULL as
+ the last argument of this function, to terminate the list of
+ strings. Allocates memory using alloca. The arguments are
+ evaluated twice! */
+#define ACONCAT(ACONCAT_PARAMS) \
+ (libiberty_concat_ptr = alloca (concat_length ACONCAT_PARAMS + 1), \
+ concat_copy2 ACONCAT_PARAMS)
/* Check whether two file descriptors refer to the same file. */
/* Choose a temporary directory to use for scratch files. */
-extern char *choose_temp_base PARAMS ((void));
+extern char *choose_temp_base PARAMS ((void)) ATTRIBUTE_MALLOC;
+
+/* Return a temporary file name or NULL if unable to create one. */
+
+extern char *make_temp_file PARAMS ((const char *)) ATTRIBUTE_MALLOC;
/* Allocate memory filled with spaces. Allocates using malloc. */
/* Exit, calling all the functions registered with xatexit. */
-#ifndef __GNUC__
-extern void xexit PARAMS ((int status));
-#else
-void xexit PARAMS ((int status)) __attribute__ ((noreturn));
-#endif
+extern void xexit PARAMS ((int status)) ATTRIBUTE_NORETURN;
/* Set the program name used by xmalloc. */
extern void xmalloc_set_program_name PARAMS ((const char *));
+/* Report an allocation failure. */
+extern void xmalloc_failed PARAMS ((size_t)) ATTRIBUTE_NORETURN;
+
/* Allocate memory without fail. If malloc fails, this will print a
message to stderr (using the name set by xmalloc_set_program_name,
if any) and then call xexit. */
-#ifdef ANSI_PROTOTYPES
-/* Get a definition for size_t. */
-#include <stddef.h>
-#endif
-extern PTR xmalloc PARAMS ((size_t));
-
-/* Reallocate memory without fail. This works like xmalloc.
+extern PTR xmalloc PARAMS ((size_t)) ATTRIBUTE_MALLOC;
- FIXME: We do not declare the parameter types for the same reason as
- xmalloc. */
+/* Reallocate memory without fail. This works like xmalloc. Note,
+ realloc type functions are not suitable for attribute malloc since
+ they may return the same address across multiple calls. */
extern PTR xrealloc PARAMS ((PTR, size_t));
/* Allocate memory without fail and set it to zero. This works like
xmalloc. */
-extern PTR xcalloc PARAMS ((size_t, size_t));
+extern PTR xcalloc PARAMS ((size_t, size_t)) ATTRIBUTE_MALLOC;
/* Copy a string into a memory buffer without fail. */
-extern char *xstrdup PARAMS ((const char *));
+extern char *xstrdup PARAMS ((const char *)) ATTRIBUTE_MALLOC;
+
+/* Copy an existing memory buffer to a new memory buffer without fail. */
+
+extern PTR xmemdup PARAMS ((const PTR, size_t, size_t)) ATTRIBUTE_MALLOC;
/* hex character manipulation routines */
#define _hex_array_size 256
#define _hex_bad 99
-extern char _hex_value[_hex_array_size];
+extern const char _hex_value[_hex_array_size];
extern void hex_init PARAMS ((void));
#define hex_p(c) (hex_value (c) != _hex_bad)
/* If you change this, note well: Some code relies on side effects in
extern int pwait PARAMS ((int, int *, int));
+/* Like sprintf but provides a pointer to malloc'd storage, which must
+ be freed by the caller. */
+
+extern int asprintf PARAMS ((char **, const char *, ...)) ATTRIBUTE_PRINTF_2;
+
+/* Like vsprintf but provides a pointer to malloc'd storage, which
+ must be freed by the caller. */
+
+extern int vasprintf PARAMS ((char **, const char *, va_list))
+ ATTRIBUTE_PRINTF(2,0);
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
+/* Drastically simplified alloca configurator. If we're using GCC,
+ we use __builtin_alloca; otherwise we use the C alloca. The C
+ alloca is always available. You can override GCC by defining
+ USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is
+ also set/unset as it is often used to indicate whether code needs
+ to call alloca(0). */
+extern PTR C_alloca PARAMS ((size_t)) ATTRIBUTE_MALLOC;
+#undef alloca
+#if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA
+# define alloca(x) __builtin_alloca(x)
+# undef C_ALLOCA
+# define ASTRDUP(X) \
+ (__extension__ ({ const char *const libiberty_optr = (X); \
+ const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \
+ char *const libiberty_nptr = alloca (libiberty_len); \
+ (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); }))
+#else
+# define alloca(x) C_alloca(x)
+# undef USE_C_ALLOCA
+# define USE_C_ALLOCA 1
+# undef C_ALLOCA
+# define C_ALLOCA 1
+extern const char *libiberty_optr;
+extern char *libiberty_nptr;
+extern unsigned long libiberty_len;
+# define ASTRDUP(X) \
+ (libiberty_optr = (X), \
+ libiberty_len = strlen (libiberty_optr) + 1, \
+ libiberty_nptr = alloca (libiberty_len), \
+ (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len))
+#endif
+
#ifdef __cplusplus
}
#endif
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