| /* Function declarations for libiberty. |
| |
| Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
| 2006, 2007, 2008, 2009, 2010 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., 51 Franklin Street - Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| |
| Written by Cygnus Support, 1994. |
| |
| The libiberty library provides a number of functions which are |
| missing on some operating systems. We do not declare those here, |
| to avoid conflicts with the system header files on operating |
| systems that do support those functions. In this file we only |
| declare those functions which are specific to libiberty. */ |
| |
| #ifndef LIBIBERTY_H |
| #define LIBIBERTY_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include "ansidecl.h" |
| |
| /* Get a definition for size_t. */ |
| #include <stddef.h> |
| /* Get a definition for va_list. */ |
| #include <stdarg.h> |
| |
| #include <stdio.h> |
| |
| /* If the OS supports it, ensure that the supplied stream is setup to |
| avoid any multi-threaded locking. Otherwise leave the FILE pointer |
| unchanged. If the stream is NULL do nothing. */ |
| |
| extern void unlock_stream (FILE *); |
| |
| /* If the OS supports it, ensure that the standard I/O streams, stdin, |
| stdout and stderr are setup to avoid any multi-threaded locking. |
| Otherwise do nothing. */ |
| |
| extern void unlock_std_streams (void); |
| |
| /* Open and return a FILE pointer. If the OS supports it, ensure that |
| the stream is setup to avoid any multi-threaded locking. Otherwise |
| return the FILE pointer unchanged. */ |
| |
| extern FILE *fopen_unlocked (const char *, const char *); |
| extern FILE *fdopen_unlocked (int, const char *); |
| extern FILE *freopen_unlocked (const char *, const char *, FILE *); |
| |
| /* Build an argument vector from a string. Allocates memory using |
| malloc. Use freeargv to free the vector. */ |
| |
| extern char **buildargv (const char *) ATTRIBUTE_MALLOC; |
| |
| /* Free a vector returned by buildargv. */ |
| |
| extern void freeargv (char **); |
| |
| /* Duplicate an argument vector. Allocates memory using malloc. Use |
| freeargv to free the vector. */ |
| |
| extern char **dupargv (char **) ATTRIBUTE_MALLOC; |
| |
| /* Expand "@file" arguments in argv. */ |
| |
| extern void expandargv PARAMS ((int *, char ***)); |
| |
| /* Write argv to an @-file, inserting necessary quoting. */ |
| |
| extern int writeargv PARAMS ((char **, FILE *)); |
| |
| /* Return the last component of a path name. Note that we can't use a |
| prototype here because the parameter is declared inconsistently |
| across different systems, sometimes as "char *" and sometimes as |
| "const char *" */ |
| |
| /* 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 !HAVE_DECL_BASENAME |
| #if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined(__NetBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) || defined (HAVE_DECL_BASENAME) |
| extern char *basename (const char *); |
| #else |
| /* Do not allow basename to be used if there is no prototype seen. We |
| either need to use the above prototype or have one from |
| autoconf which would result in HAVE_DECL_BASENAME being set. */ |
| #define basename basename_cannot_be_used_without_a_prototype |
| #endif |
| #endif |
| |
| /* A well-defined basename () that is always compiled in. */ |
| |
| extern const char *lbasename (const char *); |
| |
| /* Same, but assumes DOS semantics (drive name, backslash is also a |
| dir separator) regardless of host. */ |
| |
| extern const char *dos_lbasename (const char *); |
| |
| /* Same, but assumes Unix semantics (absolute paths always start with |
| a slash, only forward slash is accepted as dir separator) |
| regardless of host. */ |
| |
| extern const char *unix_lbasename (const char *); |
| |
| /* A well-defined realpath () that is always compiled in. */ |
| |
| extern char *lrealpath (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 (const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_SENTINEL; |
| |
| /* 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 (char *, const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_SENTINEL; |
| |
| /* 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 (const char *, ...) ATTRIBUTE_SENTINEL; |
| |
| /* 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 (char *, const char *, ...) ATTRIBUTE_SENTINEL; |
| |
| /* 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 (const char *, ...) ATTRIBUTE_SENTINEL; |
| |
| /* This is the global area used by concat_copy2. */ |
| |
| 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 = (char *) alloca (concat_length ACONCAT_PARAMS + 1), \ |
| concat_copy2 ACONCAT_PARAMS) |
| |
| /* Check whether two file descriptors refer to the same file. */ |
| |
| extern int fdmatch (int fd1, int fd2); |
| |
| /* Return the position of the first bit set in the argument. */ |
| /* Prototypes vary from system to system, so we only provide a |
| prototype on systems where we know that we need it. */ |
| #if defined (HAVE_DECL_FFS) && !HAVE_DECL_FFS |
| extern int ffs(int); |
| #endif |
| |
| /* Get the working directory. The result is cached, so don't call |
| chdir() between calls to getpwd(). */ |
| |
| extern char * getpwd (void); |
| |
| /* Get the current time. */ |
| /* Prototypes vary from system to system, so we only provide a |
| prototype on systems where we know that we need it. */ |
| #ifdef __MINGW32__ |
| /* Forward declaration to avoid #include <sys/time.h>. */ |
| struct timeval; |
| extern int gettimeofday (struct timeval *, void *); |
| #endif |
| |
| /* Get the amount of time the process has run, in microseconds. */ |
| |
| extern long get_run_time (void); |
| |
| /* Generate a relocated path to some installation directory. Allocates |
| return value using malloc. */ |
| |
| extern char *make_relative_prefix (const char *, const char *, |
| const char *) ATTRIBUTE_MALLOC; |
| |
| /* Generate a relocated path to some installation directory without |
| attempting to follow any soft links. Allocates |
| return value using malloc. */ |
| |
| extern char *make_relative_prefix_ignore_links (const char *, const char *, |
| const char *) ATTRIBUTE_MALLOC; |
| |
| /* Choose a temporary directory to use for scratch files. */ |
| |
| extern char *choose_temp_base (void) ATTRIBUTE_MALLOC; |
| |
| /* Return a temporary file name or NULL if unable to create one. */ |
| |
| extern char *make_temp_file (const char *) ATTRIBUTE_MALLOC; |
| |
| /* Remove a link to a file unless it is special. */ |
| |
| extern int unlink_if_ordinary (const char *); |
| |
| /* Allocate memory filled with spaces. Allocates using malloc. */ |
| |
| extern const char *spaces (int count); |
| |
| /* Return the maximum error number for which strerror will return a |
| string. */ |
| |
| extern int errno_max (void); |
| |
| /* Return the name of an errno value (e.g., strerrno (EINVAL) returns |
| "EINVAL"). */ |
| |
| extern const char *strerrno (int); |
| |
| /* Given the name of an errno value, return the value. */ |
| |
| extern int strtoerrno (const char *); |
| |
| /* ANSI's strerror(), but more robust. */ |
| |
| extern char *xstrerror (int); |
| |
| /* Return the maximum signal number for which strsignal will return a |
| string. */ |
| |
| extern int signo_max (void); |
| |
| /* Return a signal message string for a signal number |
| (e.g., strsignal (SIGHUP) returns something like "Hangup"). */ |
| /* This is commented out as it can conflict with one in system headers. |
| We still document its existence though. */ |
| |
| /*extern const char *strsignal (int);*/ |
| |
| /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns |
| "SIGHUP"). */ |
| |
| extern const char *strsigno (int); |
| |
| /* Given the name of a signal, return its number. */ |
| |
| extern int strtosigno (const char *); |
| |
| /* Register a function to be run by xexit. Returns 0 on success. */ |
| |
| extern int xatexit (void (*fn) (void)); |
| |
| /* Exit, calling all the functions registered with xatexit. */ |
| |
| extern void xexit (int status) ATTRIBUTE_NORETURN; |
| |
| /* Set the program name used by xmalloc. */ |
| |
| extern void xmalloc_set_program_name (const char *); |
| |
| /* Report an allocation failure. */ |
| extern void xmalloc_failed (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. */ |
| |
| extern void *xmalloc (size_t) ATTRIBUTE_MALLOC; |
| |
| /* 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 void *xrealloc (void *, size_t); |
| |
| /* Allocate memory without fail and set it to zero. This works like |
| xmalloc. */ |
| |
| extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC; |
| |
| /* Copy a string into a memory buffer without fail. */ |
| |
| extern char *xstrdup (const char *) ATTRIBUTE_MALLOC; |
| |
| /* Copy at most N characters from string into a buffer without fail. */ |
| |
| extern char *xstrndup (const char *, size_t) ATTRIBUTE_MALLOC; |
| |
| /* Copy an existing memory buffer to a new memory buffer without fail. */ |
| |
| extern void *xmemdup (const void *, size_t, size_t) ATTRIBUTE_MALLOC; |
| |
| /* Physical memory routines. Return values are in BYTES. */ |
| extern double physmem_total (void); |
| extern double physmem_available (void); |
| |
| /* Compute the 32-bit CRC of a block of memory. */ |
| extern unsigned int xcrc32 (const unsigned char *, int, unsigned int); |
| |
| /* These macros provide a K&R/C89/C++-friendly way of allocating structures |
| with nice encapsulation. The XDELETE*() macros are technically |
| superfluous, but provided here for symmetry. Using them consistently |
| makes it easier to update client code to use different allocators such |
| as new/delete and new[]/delete[]. */ |
| |
| /* Scalar allocators. */ |
| |
| #define XALLOCA(T) ((T *) alloca (sizeof (T))) |
| #define XNEW(T) ((T *) xmalloc (sizeof (T))) |
| #define XCNEW(T) ((T *) xcalloc (1, sizeof (T))) |
| #define XDUP(T, P) ((T *) xmemdup ((P), sizeof (T), sizeof (T))) |
| #define XDELETE(P) free ((void*) (P)) |
| |
| /* Array allocators. */ |
| |
| #define XALLOCAVEC(T, N) ((T *) alloca (sizeof (T) * (N))) |
| #define XNEWVEC(T, N) ((T *) xmalloc (sizeof (T) * (N))) |
| #define XCNEWVEC(T, N) ((T *) xcalloc ((N), sizeof (T))) |
| #define XDUPVEC(T, P, N) ((T *) xmemdup ((P), sizeof (T) * (N), sizeof (T) * (N))) |
| #define XRESIZEVEC(T, P, N) ((T *) xrealloc ((void *) (P), sizeof (T) * (N))) |
| #define XDELETEVEC(P) free ((void*) (P)) |
| |
| /* Allocators for variable-sized structures and raw buffers. */ |
| |
| #define XALLOCAVAR(T, S) ((T *) alloca ((S))) |
| #define XNEWVAR(T, S) ((T *) xmalloc ((S))) |
| #define XCNEWVAR(T, S) ((T *) xcalloc (1, (S))) |
| #define XDUPVAR(T, P, S1, S2) ((T *) xmemdup ((P), (S1), (S2))) |
| #define XRESIZEVAR(T, P, S) ((T *) xrealloc ((P), (S))) |
| |
| /* Type-safe obstack allocator. */ |
| |
| #define XOBNEW(O, T) ((T *) obstack_alloc ((O), sizeof (T))) |
| #define XOBNEWVEC(O, T, N) ((T *) obstack_alloc ((O), sizeof (T) * (N))) |
| #define XOBNEWVAR(O, T, S) ((T *) obstack_alloc ((O), (S))) |
| #define XOBFINISH(O, T) ((T) obstack_finish ((O))) |
| |
| /* hex character manipulation routines */ |
| |
| #define _hex_array_size 256 |
| #define _hex_bad 99 |
| extern const unsigned char _hex_value[_hex_array_size]; |
| extern void hex_init (void); |
| #define hex_p(c) (hex_value (c) != _hex_bad) |
| /* If you change this, note well: Some code relies on side effects in |
| the argument being performed exactly once. */ |
| #define hex_value(c) ((unsigned int) _hex_value[(unsigned char) (c)]) |
| |
| /* Flags for pex_init. These are bits to be or'ed together. */ |
| |
| /* Record subprocess times, if possible. */ |
| #define PEX_RECORD_TIMES 0x1 |
| |
| /* Use pipes for communication between processes, if possible. */ |
| #define PEX_USE_PIPES 0x2 |
| |
| /* Save files used for communication between processes. */ |
| #define PEX_SAVE_TEMPS 0x4 |
| |
| /* Prepare to execute one or more programs, with standard output of |
| each program fed to standard input of the next. |
| FLAGS As above. |
| PNAME The name of the program to report in error messages. |
| TEMPBASE A base name to use for temporary files; may be NULL to |
| use a random name. |
| Returns NULL on error. */ |
| |
| extern struct pex_obj *pex_init (int flags, const char *pname, |
| const char *tempbase); |
| |
| /* Flags for pex_run. These are bits to be or'ed together. */ |
| |
| /* Last program in pipeline. Standard output of program goes to |
| OUTNAME, or, if OUTNAME is NULL, to standard output of caller. Do |
| not set this if you want to call pex_read_output. After this is |
| set, pex_run may no longer be called with the same struct |
| pex_obj. */ |
| #define PEX_LAST 0x1 |
| |
| /* Search for program in executable search path. */ |
| #define PEX_SEARCH 0x2 |
| |
| /* OUTNAME is a suffix. */ |
| #define PEX_SUFFIX 0x4 |
| |
| /* Send program's standard error to standard output. */ |
| #define PEX_STDERR_TO_STDOUT 0x8 |
| |
| /* Input file should be opened in binary mode. This flag is ignored |
| on Unix. */ |
| #define PEX_BINARY_INPUT 0x10 |
| |
| /* Output file should be opened in binary mode. This flag is ignored |
| on Unix. For proper behaviour PEX_BINARY_INPUT and |
| PEX_BINARY_OUTPUT have to match appropriately--i.e., a call using |
| PEX_BINARY_OUTPUT should be followed by a call using |
| PEX_BINARY_INPUT. */ |
| #define PEX_BINARY_OUTPUT 0x20 |
| |
| /* Capture stderr to a pipe. The output can be read by |
| calling pex_read_err and reading from the returned |
| FILE object. This flag may be specified only for |
| the last program in a pipeline. |
| |
| This flag is supported only on Unix and Windows. */ |
| #define PEX_STDERR_TO_PIPE 0x40 |
| |
| /* Capture stderr in binary mode. This flag is ignored |
| on Unix. */ |
| #define PEX_BINARY_ERROR 0x80 |
| |
| |
| /* Execute one program. Returns NULL on success. On error returns an |
| error string (typically just the name of a system call); the error |
| string is statically allocated. |
| |
| OBJ Returned by pex_init. |
| |
| FLAGS As above. |
| |
| EXECUTABLE The program to execute. |
| |
| ARGV NULL terminated array of arguments to pass to the program. |
| |
| OUTNAME Sets the output file name as follows: |
| |
| PEX_SUFFIX set (OUTNAME may not be NULL): |
| TEMPBASE parameter to pex_init not NULL: |
| Output file name is the concatenation of TEMPBASE |
| and OUTNAME. |
| TEMPBASE is NULL: |
| Output file name is a random file name ending in |
| OUTNAME. |
| PEX_SUFFIX not set: |
| OUTNAME not NULL: |
| Output file name is OUTNAME. |
| OUTNAME NULL, TEMPBASE not NULL: |
| Output file name is randomly chosen using |
| TEMPBASE. |
| OUTNAME NULL, TEMPBASE NULL: |
| Output file name is randomly chosen. |
| |
| If PEX_LAST is not set, the output file name is the |
| name to use for a temporary file holding stdout, if |
| any (there will not be a file if PEX_USE_PIPES is set |
| and the system supports pipes). If a file is used, it |
| will be removed when no longer needed unless |
| PEX_SAVE_TEMPS is set. |
| |
| If PEX_LAST is set, and OUTNAME is not NULL, standard |
| output is written to the output file name. The file |
| will not be removed. If PEX_LAST and PEX_SUFFIX are |
| both set, TEMPBASE may not be NULL. |
| |
| ERRNAME If not NULL, this is the name of a file to which |
| standard error is written. If NULL, standard error of |
| the program is standard error of the caller. |
| |
| ERR On an error return, *ERR is set to an errno value, or |
| to 0 if there is no relevant errno. |
| */ |
| |
| extern const char *pex_run (struct pex_obj *obj, int flags, |
| const char *executable, char * const *argv, |
| const char *outname, const char *errname, |
| int *err); |
| |
| /* As for pex_run (), but takes an extra parameter to enable the |
| environment for the child process to be specified. |
| |
| ENV The environment for the child process, specified as |
| an array of character pointers. Each element of the |
| array should point to a string of the form VAR=VALUE, |
| with the exception of the last element which must be |
| a null pointer. |
| */ |
| |
| extern const char *pex_run_in_environment (struct pex_obj *obj, int flags, |
| const char *executable, |
| char * const *argv, |
| char * const *env, |
| const char *outname, |
| const char *errname, int *err); |
| |
| /* Return a stream for a temporary file to pass to the first program |
| in the pipeline as input. The file name is chosen as for pex_run. |
| pex_run closes the file automatically; don't close it yourself. */ |
| |
| extern FILE *pex_input_file (struct pex_obj *obj, int flags, |
| const char *in_name); |
| |
| /* Return a stream for a pipe connected to the standard input of the |
| first program in the pipeline. You must have passed |
| `PEX_USE_PIPES' to `pex_init'. Close the returned stream |
| yourself. */ |
| |
| extern FILE *pex_input_pipe (struct pex_obj *obj, int binary); |
| |
| /* Read the standard output of the last program to be executed. |
| pex_run can not be called after this. BINARY should be non-zero if |
| the file should be opened in binary mode; this is ignored on Unix. |
| Returns NULL on error. Don't call fclose on the returned FILE; it |
| will be closed by pex_free. */ |
| |
| extern FILE *pex_read_output (struct pex_obj *, int binary); |
| |
| /* Read the standard error of the last program to be executed. |
| pex_run can not be called after this. BINARY should be non-zero if |
| the file should be opened in binary mode; this is ignored on Unix. |
| Returns NULL on error. Don't call fclose on the returned FILE; it |
| will be closed by pex_free. */ |
| |
| extern FILE *pex_read_err (struct pex_obj *, int binary); |
| |
| /* Return exit status of all programs in VECTOR. COUNT indicates the |
| size of VECTOR. The status codes in the vector are in the order of |
| the calls to pex_run. Returns 0 on error, 1 on success. */ |
| |
| extern int pex_get_status (struct pex_obj *, int count, int *vector); |
| |
| /* Return times of all programs in VECTOR. COUNT indicates the size |
| of VECTOR. struct pex_time is really just struct timeval, but that |
| is not portable to all systems. Returns 0 on error, 1 on |
| success. */ |
| |
| struct pex_time |
| { |
| unsigned long user_seconds; |
| unsigned long user_microseconds; |
| unsigned long system_seconds; |
| unsigned long system_microseconds; |
| }; |
| |
| extern int pex_get_times (struct pex_obj *, int count, |
| struct pex_time *vector); |
| |
| /* Clean up a pex_obj. If you have not called pex_get_times or |
| pex_get_status, this will try to kill the subprocesses. */ |
| |
| extern void pex_free (struct pex_obj *); |
| |
| /* Just execute one program. Return value is as for pex_run. |
| FLAGS Combination of PEX_SEARCH and PEX_STDERR_TO_STDOUT. |
| EXECUTABLE As for pex_run. |
| ARGV As for pex_run. |
| PNAME As for pex_init. |
| OUTNAME As for pex_run when PEX_LAST is set. |
| ERRNAME As for pex_run. |
| STATUS Set to exit status on success. |
| ERR As for pex_run. |
| */ |
| |
| extern const char *pex_one (int flags, const char *executable, |
| char * const *argv, const char *pname, |
| const char *outname, const char *errname, |
| int *status, int *err); |
| |
| /* pexecute and pwait are the old pexecute interface, still here for |
| backward compatibility. Don't use these for new code. Instead, |
| use pex_init/pex_run/pex_get_status/pex_free, or pex_one. */ |
| |
| /* Definitions used by the pexecute routine. */ |
| |
| #define PEXECUTE_FIRST 1 |
| #define PEXECUTE_LAST 2 |
| #define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST) |
| #define PEXECUTE_SEARCH 4 |
| #define PEXECUTE_VERBOSE 8 |
| |
| /* Execute a program. */ |
| |
| extern int pexecute (const char *, char * const *, const char *, |
| const char *, char **, char **, int); |
| |
| /* Wait for pexecute to finish. */ |
| |
| extern int pwait (int, int *, int); |
| |
| #if !HAVE_DECL_ASPRINTF |
| /* Like sprintf but provides a pointer to malloc'd storage, which must |
| be freed by the caller. */ |
| |
| extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2; |
| #endif |
| |
| #if !HAVE_DECL_VASPRINTF |
| /* Like vsprintf but provides a pointer to malloc'd storage, which |
| must be freed by the caller. */ |
| |
| extern int vasprintf (char **, const char *, va_list) ATTRIBUTE_PRINTF(2,0); |
| #endif |
| |
| #if defined(HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF |
| /* Like sprintf but prints at most N characters. */ |
| extern int snprintf (char *, size_t, const char *, ...) ATTRIBUTE_PRINTF_3; |
| #endif |
| |
| #if defined(HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF |
| /* Like vsprintf but prints at most N characters. */ |
| extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0); |
| #endif |
| |
| #if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP |
| /* Compare version strings. */ |
| extern int strverscmp (const char *, const char *); |
| #endif |
| |
| /* Set the title of a process */ |
| extern void setproctitle (const char *name, ...); |
| |
| #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 void *C_alloca (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 = (char *const) 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 = (char *) alloca (libiberty_len), \ |
| (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len)) |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |
| #endif /* ! defined (LIBIBERTY_H) */ |