@@ -110,16 +110,16 @@ Deprecated and removed features, and other changes affecting compatibility:
* The tilepro-*-linux-gnu configuration is no longer supported.
-* The nonstandard header files <libio.h> and <_G_config.h> are deprecated
- and will be removed in a future release. Software that is still using
- either header should be updated to use standard <stdio.h> interfaces
- instead.
+* The nonstandard header files <libio.h> and <_G_config.h> are deprecated.
+ <stdio.h> no longer includes either of them, and they will be removed in a
+ future release. Software that is still using these headers, or their
+ contents, should be updated to use standard <stdio.h> interfaces instead.
libio.h was originally the header for a set of supported GNU extensions,
but they have not been maintained as such in many years, they are now
- standing in the way of improvements to stdio, and we don't think there are
- any remaining external users. _G_config.h was never intended for public
- use, but predates the bits convention.
+ standing in the way of improvements to stdio, and we are not aware of any
+ remaining external users. _G_config.h was never intended for public use,
+ but predates the "bits" convention for private-but-installed headers.
Changes to build and runtime requirements:
new file mode 100644
@@ -0,0 +1 @@
+#include <libio/bits/types/struct_FILE.h>
@@ -2,6 +2,7 @@
#include <stdio-common/stdio_ext.h>
# ifndef _ISOMAC
+# include <bits/types/struct_FILE.h>
libc_hidden_proto (__fsetlocking)
@@ -25,8 +25,9 @@ include ../Makeconfig
headers := stdio.h libio.h _G_config.h \
bits/stdio.h bits/libio.h bits/_G_config.h \
bits/sys_errlist.h bits/stdio2.h bits/stdio-ldbl.h bits/libio-ldbl.h \
- bits/types/FILE.h bits/types/__FILE.h bits/types/__fpos_t.h \
- bits/types/__fpos64_t.h bits/types/cookie_io_functions_t.h
+ bits/types/FILE.h bits/types/__FILE.h bits/types/struct_FILE.h \
+ bits/types/__fpos_t.h bits/types/__fpos64_t.h \
+ bits/types/cookie_io_functions_t.h
routines := \
filedoalloc iofclose iofdopen iofflush iofgetpos iofgets iofopen \
@@ -28,11 +28,12 @@
#ifndef _BITS_LIBIO_H
#define _BITS_LIBIO_H 1
-#if !defined _STDIO_H && !defined _LIBIO_H && !defined _LIBIOP_H
-# error "Never include <bits/libio.h> directly; use <stdio.h> instead."
+#if !defined _LIBIO_H && !defined _LIBIOP_H
+# error "Never include <bits/libio.h> directly; use <libio.h> instead."
#endif
#include <stdio.h>
+#include <bits/types/struct_FILE.h>
#include <bits/_G_config.h>
/* ALL of these should be defined in _G_config.h */
@@ -50,9 +51,13 @@
#define _IO_wint_t wint_t
#define _IO_va_list __gnuc_va_list
+/* compatibility defines */
#define _STDIO_USES_IOSTREAM
#define _IO_UNIFIED_JUMPTABLES 1
+#define __HAVE_COLUMN
+#define _IO_file_flags _flags
+/* open modes */
#define _IOS_INPUT 1
#define _IOS_OUTPUT 2
#define _IOS_ATEND 4
@@ -121,14 +126,7 @@
#define _IO_BOOLALPHA 0200000
-struct _IO_jump_t; struct _IO_FILE;
-
-/* During the build of glibc itself, _IO_lock_t will already have been
- defined by internal headers. */
-#ifndef _IO_lock_t_defined
-typedef void _IO_lock_t;
-#endif
-
+struct _IO_jump_t;
/* A streammarker remembers a position in a buffer. */
@@ -139,16 +137,6 @@ struct _IO_marker {
it points to _buf->Gbase()+_pos. FIXME comment */
/* if _pos < 0, it points to _buf->eBptr()+_pos. FIXME comment */
int _pos;
-#if 0
- void set_streampos(streampos sp) { _spos = sp; }
- void set_offset(int offset) { _pos = offset; _spos = (streampos)(-2); }
- public:
- streammarker(streambuf *sb);
- ~streammarker();
- int saving() { return _spos == -2; }
- int delta(streammarker&);
- int delta();
-#endif
};
/* This is the structure from the libstdc++ codecvt class. */
@@ -217,73 +205,6 @@ struct _IO_wide_data
};
#endif
-struct _IO_FILE {
- int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
-#define _IO_file_flags _flags
-
- /* The following pointers correspond to the C++ streambuf protocol. */
- /* Note: Tk uses the _IO_read_ptr and _IO_read_end fields directly. */
- char* _IO_read_ptr; /* Current read pointer */
- char* _IO_read_end; /* End of get area. */
- char* _IO_read_base; /* Start of putback+get area. */
- char* _IO_write_base; /* Start of put area. */
- char* _IO_write_ptr; /* Current put pointer. */
- char* _IO_write_end; /* End of put area. */
- char* _IO_buf_base; /* Start of reserve area. */
- char* _IO_buf_end; /* End of reserve area. */
- /* The following fields are used to support backing up and undo. */
- char *_IO_save_base; /* Pointer to start of non-current get area. */
- char *_IO_backup_base; /* Pointer to first valid character of backup area */
- char *_IO_save_end; /* Pointer to end of non-current get area. */
-
- struct _IO_marker *_markers;
-
- struct _IO_FILE *_chain;
-
- int _fileno;
-#if 0
- int _blksize;
-#else
- int _flags2;
-#endif
- _IO_off_t _old_offset; /* This used to be _offset but it's too small. */
-
-#define __HAVE_COLUMN /* temporary */
- /* 1+column number of pbase(); 0 is unknown. */
- unsigned short _cur_column;
- signed char _vtable_offset;
- char _shortbuf[1];
-
- /* char* _save_gptr; char* _save_egptr; */
-
- _IO_lock_t *_lock;
-#ifdef _IO_USE_OLD_IO_FILE
-};
-
-struct _IO_FILE_complete
-{
- struct _IO_FILE _file;
-#endif
-#if defined _G_IO_IO_FILE_VERSION && _G_IO_IO_FILE_VERSION == 0x20001
- _IO_off64_t _offset;
-# if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
- /* Wide character stream stuff. */
- struct _IO_codecvt *_codecvt;
- struct _IO_wide_data *_wide_data;
- struct _IO_FILE *_freeres_list;
- void *_freeres_buf;
-# else
- void *__pad1;
- void *__pad2;
- void *__pad3;
- void *__pad4;
-# endif
- size_t __pad5;
- int _mode;
- /* Make sure we don't get into trouble again. */
- char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
-#endif
-};
#ifndef __cplusplus
typedef struct _IO_FILE _IO_FILE;
@@ -325,9 +246,6 @@ extern void _IO_cookie_init (struct _IO_cookie_file *__cfile, int __read_write,
extern "C" {
#endif
-extern int __underflow (_IO_FILE *);
-extern int __uflow (_IO_FILE *);
-extern int __overflow (_IO_FILE *, int);
#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
extern _IO_wint_t __wunderflow (_IO_FILE *);
extern _IO_wint_t __wuflow (_IO_FILE *);
@@ -340,17 +258,12 @@ extern _IO_wint_t __woverflow (_IO_FILE *, _IO_wint_t);
# define _IO_BE(expr, res) (expr)
#endif
-#define _IO_getc_unlocked(_fp) \
- (_IO_BE ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end, 0) \
- ? __uflow (_fp) : *(unsigned char *) (_fp)->_IO_read_ptr++)
+#define _IO_getc_unlocked(_fp) __getc_unlocked_body (_fp)
#define _IO_peekc_unlocked(_fp) \
(_IO_BE ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end, 0) \
&& __underflow (_fp) == EOF ? EOF \
: *(unsigned char *) (_fp)->_IO_read_ptr)
-#define _IO_putc_unlocked(_ch, _fp) \
- (_IO_BE ((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end, 0) \
- ? __overflow (_fp, (unsigned char) (_ch)) \
- : (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch)))
+#define _IO_putc_unlocked(_ch, _fp) __putc_unlocked_body (_ch, _fp)
#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
# define _IO_getwc_unlocked(_fp) \
@@ -366,8 +279,8 @@ extern _IO_wint_t __woverflow (_IO_FILE *, _IO_wint_t);
: (_IO_wint_t) (*(_fp)->_wide_data->_IO_write_ptr++ = (_wch)))
#endif
-#define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
-#define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
+#define _IO_feof_unlocked(_fp) __feof_unlocked_body (_fp)
+#define _IO_ferror_unlocked(_fp) __ferror_unlocked_body (_fp)
extern int _IO_getc (_IO_FILE *__fp);
extern int _IO_putc (int __c, _IO_FILE *__fp);
@@ -386,6 +299,7 @@ extern void (_IO_funlockfile) (_IO_FILE *) __THROW;
extern int (_IO_ftrylockfile) (_IO_FILE *) __THROW;
#define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
+#if !defined _LIBC && !defined _IO_MTSAFE_IO
#define _IO_flockfile(_fp) /**/
#define _IO_funlockfile(_fp) /**/
#define _IO_ftrylockfile(_fp) /**/
@@ -395,6 +309,7 @@ extern int (_IO_ftrylockfile) (_IO_FILE *) __THROW;
#ifndef _IO_cleanup_region_end
#define _IO_cleanup_region_end(_Doit) /**/
#endif
+#endif
#define _IO_need_lock(_fp) \
(((_fp)->_flags2 & _IO_FLAGS2_NEED_LOCK) != 0)
@@ -16,10 +16,15 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#ifndef _BITS_STDIO_H
+#define _BITS_STDIO_H 1
+
#ifndef _STDIO_H
# error "Never include <bits/stdio.h> directly; use <stdio.h> instead."
#endif
+#include <bits/types/struct_FILE.h>
+
#ifndef __extern_inline
# define __STDIO_INLINE inline
#else
@@ -43,7 +48,7 @@ vprintf (const char *__restrict __fmt, __gnuc_va_list __arg)
__STDIO_INLINE int
getchar (void)
{
- return _IO_getc (stdin);
+ return getc (stdin);
}
@@ -52,7 +57,7 @@ getchar (void)
__STDIO_INLINE int
fgetc_unlocked (FILE *__fp)
{
- return _IO_getc_unlocked (__fp);
+ return __getc_unlocked_body (__fp);
}
# endif /* misc */
@@ -62,14 +67,14 @@ fgetc_unlocked (FILE *__fp)
__STDIO_INLINE int
getc_unlocked (FILE *__fp)
{
- return _IO_getc_unlocked (__fp);
+ return __getc_unlocked_body (__fp);
}
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
getchar_unlocked (void)
{
- return _IO_getc_unlocked (stdin);
+ return __getc_unlocked_body (stdin);
}
# endif /* POSIX */
@@ -78,7 +83,7 @@ getchar_unlocked (void)
__STDIO_INLINE int
putchar (int __c)
{
- return _IO_putc (__c, stdout);
+ return putc (__c, stdout);
}
@@ -87,7 +92,7 @@ putchar (int __c)
__STDIO_INLINE int
fputc_unlocked (int __c, FILE *__stream)
{
- return _IO_putc_unlocked (__c, __stream);
+ return __putc_unlocked_body (__c, __stream);
}
# endif /* misc */
@@ -97,14 +102,14 @@ fputc_unlocked (int __c, FILE *__stream)
__STDIO_INLINE int
putc_unlocked (int __c, FILE *__stream)
{
- return _IO_putc_unlocked (__c, __stream);
+ return __putc_unlocked_body (__c, __stream);
}
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
putchar_unlocked (int __c)
{
- return _IO_putc_unlocked (__c, stdout);
+ return __putc_unlocked_body (__c, stdout);
}
# endif /* POSIX */
@@ -124,14 +129,14 @@ getline (char **__lineptr, size_t *__n, FILE *__stream)
__STDIO_INLINE int
__NTH (feof_unlocked (FILE *__stream))
{
- return _IO_feof_unlocked (__stream);
+ return __feof_unlocked_body (__stream);
}
/* Faster versions when locking is not required. */
__STDIO_INLINE int
__NTH (ferror_unlocked (FILE *__stream))
{
- return _IO_ferror_unlocked (__stream);
+ return __ferror_unlocked_body (__stream);
}
# endif /* misc */
@@ -151,7 +156,7 @@ __NTH (ferror_unlocked (FILE *__stream))
for (__cnt = (size_t) (size) * (size_t) (n); \
__cnt > 0; --__cnt) \
{ \
- int __c = _IO_getc_unlocked (__stream); \
+ int __c = getc_unlocked (__stream); \
if (__c == EOF) \
break; \
*__ptr++ = __c; \
@@ -174,7 +179,7 @@ __NTH (ferror_unlocked (FILE *__stream))
size_t __cnt; \
for (__cnt = (size_t) (size) * (size_t) (n); \
__cnt > 0; --__cnt) \
- if (_IO_putc_unlocked (*__ptr++, __stream) == EOF) \
+ if (putc_unlocked (*__ptr++, __stream) == EOF) \
break; \
((size_t) (size) * (size_t) (n) - __cnt) \
/ (size_t) (size); }) \
@@ -188,3 +193,5 @@ __NTH (ferror_unlocked (FILE *__stream))
/* Define helper macro. */
#undef __STDIO_INLINE
+
+#endif /* bits/stdio.h. */
@@ -16,6 +16,9 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#ifndef _BITS_STDIO2_H
+#define _BITS_STDIO2_H 1
+
#ifndef _STDIO_H
# error "Never include <bits/stdio2.h> directly; use <stdio.h> instead."
#endif
@@ -368,7 +371,7 @@ fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n,
for (; __cnt > 0; --__cnt)
{
- int __c = _IO_getc_unlocked (__stream);
+ int __c = getc_unlocked (__stream);
if (__c == EOF)
break;
*__cptr++ = __c;
@@ -379,3 +382,5 @@ fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n,
return __fread_unlocked_alias (__ptr, __size, __n, __stream);
}
#endif
+
+#endif /* bits/stdio2.h. */
new file mode 100644
@@ -0,0 +1,103 @@
+#ifndef __struct_FILE_defined
+#define __struct_FILE_defined 1
+
+/* Caution: The contents of this file are not part of the official
+ stdio.h API. However, much of it is part of the official *binary*
+ interface, and therefore cannot be changed. */
+
+#if defined _IO_USE_OLD_IO_FILE && !defined _LIBC
+# error "_IO_USE_OLD_IO_FILE should only be defined when building libc itself"
+#endif
+
+#if defined _IO_lock_t_defined && !defined _LIBC
+# error "_IO_lock_t_defined should only be defined when building libc itself"
+#endif
+
+#include <bits/types.h>
+
+struct _IO_FILE;
+struct _IO_marker;
+struct _IO_codecvt;
+struct _IO_wide_data;
+
+/* During the build of glibc itself, _IO_lock_t will already have been
+ defined by internal headers. */
+#ifndef _IO_lock_t_defined
+typedef void _IO_lock_t;
+#endif
+
+/* Note: the tag name of this struct is _IO_FILE to preserve historic
+ C++ mangled names for functions taking FILE* arguments. That name
+ should not be used in new code. */
+struct _IO_FILE
+{
+ int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
+
+ /* The following pointers correspond to the C++ streambuf protocol. */
+ char *_IO_read_ptr; /* Current read pointer */
+ char *_IO_read_end; /* End of get area. */
+ char *_IO_read_base; /* Start of putback+get area. */
+ char *_IO_write_base; /* Start of put area. */
+ char *_IO_write_ptr; /* Current put pointer. */
+ char *_IO_write_end; /* End of put area. */
+ char *_IO_buf_base; /* Start of reserve area. */
+ char *_IO_buf_end; /* End of reserve area. */
+
+ /* The following fields are used to support backing up and undo. */
+ char *_IO_save_base; /* Pointer to start of non-current get area. */
+ char *_IO_backup_base; /* Pointer to first valid character of backup area */
+ char *_IO_save_end; /* Pointer to end of non-current get area. */
+
+ struct _IO_marker *_markers;
+
+ struct _IO_FILE *_chain;
+
+ int _fileno;
+ int _flags2;
+ __off_t _old_offset; /* This used to be _offset but it's too small. */
+
+ /* 1+column number of pbase(); 0 is unknown. */
+ unsigned short _cur_column;
+ signed char _vtable_offset;
+ char _shortbuf[1];
+
+ _IO_lock_t *_lock;
+#ifdef _IO_USE_OLD_IO_FILE
+};
+
+struct _IO_FILE_complete
+{
+ struct _IO_FILE _file;
+#endif
+ __off64_t _offset;
+ /* Wide character stream stuff. */
+ struct _IO_codecvt *_codecvt;
+ struct _IO_wide_data *_wide_data;
+ struct _IO_FILE *_freeres_list;
+ void *_freeres_buf;
+ size_t __pad5;
+ int _mode;
+ /* Make sure we don't get into trouble again. */
+ char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
+};
+
+/* These macros are used by bits/stdio.h and libio.h. */
+#define __getc_unlocked_body(_fp) \
+ (__glibc_unlikely ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end) \
+ ? __uflow (_fp) : *(unsigned char *) (_fp)->_IO_read_ptr++)
+
+#define __putc_unlocked_body(_ch, _fp) \
+ (__glibc_unlikely ((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \
+ ? __overflow (_fp, (unsigned char) (_ch)) \
+ : (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch)))
+
+#define _IO_EOF_SEEN 0x10
+#define __feof_unlocked_body(_fp) (((_fp)->_flags & _IO_EOF_SEEN) != 0)
+
+#define _IO_ERR_SEEN 0x20
+#define __ferror_unlocked_body(_fp) (((_fp)->_flags & _IO_ERR_SEEN) != 0)
+
+#define _IO_USER_LOCK 0x8000
+/* Many more flag bits are defined internally. */
+
+#endif
@@ -845,8 +845,11 @@ extern void funlockfile (FILE *__stream) __THROW;
# include <bits/getopt_posix.h>
#endif
-/* Internal definitions used by optimizing inlines. */
-#include <bits/libio.h>
+/* Slow-path routines used by the optimized inline functions in
+ bits/stdio.h. */
+extern int __underflow (FILE *);
+extern int __uflow (FILE *);
+extern int __overflow (FILE *, int);
/* If we are compiling with optimizing read this file. It contains
several optimizing inline functions and macros. */