Update.

1997-10-13 03:14 Ulrich Drepper <drepper@cygnus.com> * libc.map: Move _IO_fopen, fopen, _IO_stdin_, _IO_stdout_, _IO_stderr_, _IO_list_all, and freopen to GLIBC_2.1 version. * include/libc-symbol.h: Define define_symbol. * libio/Makefile [$(versioning)=yes] (routines): Add oldiofopen and oldfreopen. [$(versioning)=yes] (aux): Add oldfileops and oldstdfiles. * libio/fileops.c: Use _IO_FILE_complete when accessing _offset field. * libio/freopen.c: Use versioning. * libio/iofopen.c: Likewise. Generate object of type _IO_FILE_complete. * libio/iofopen64.c: Generate object of type _IO_FILE_complete. * libio/iolibio.h: Declare _IO_{old,new}_fopen and __{old,new}_freopen. Define _IO_old_freopen. * libio/libio.h: Remove _offset field from _IO_FILE. Rename _unused2 field to _old_offset. Declare _IO_std*_ streams as of type _IO_FILE_complete. * libio/libioP.h: Define _IO_FILE_complete. Declare callbacks for old fileops implementation. * libio/stdfile.c: Define standard stream of type _IO_FILE_complete. * libio/stdio.c: Correctly address FILE part of standard streams. * libio/oldfileops.c: New file. * libio/oldfreopen.c: New file. * libio/oldiofopen.c: New file. * libio/oldstdfiles.c: New file. * sysdeps/i386/fpu/bits/mathinline.h: Define fma optimization. * sysdeps/libm-i387/e_scalb.S: Make sure code gets into .text section. * sysdeps/libm-i387/e_scalbl.S: Likewise. * sysdeps/libm-i387/s_fma.S: Fix typo. * sysdeps/libm-i387/s_fmaf.S: Likewise. * sysdeps/libm-i387/s_fmal.S: Likewise. 1997-10-12 20:14 Zack Weinberg <zack@rabi.phys.columbia.edu> * sysdeps/stub/getsid.c: Add a stub_warning. * sysdeps/stub/mmap.c: Likewise. * sysdeps/stub/munmap.c: Likewise. * sysdeps/libm-ieee754/s_fma.c: New file. * sysdeps/libm-ieee754/s_fmaf.c: New file. * sysdeps/libm-ieee754/s_fmal.c: New file. * sysdeps/libm-ieee754/s_llrintf.c: New file. * sysdeps/libm-ieee754/s_llrintl.c: New file. * sysdeps/libm-ieee754/s_lrintf.c: New file. * sysdeps/libm-ieee754/s_lrintl.c: New file.
git-mirror · Oct 13, 1997 · 1ea89a4 · 1ea89a4
1 parent dfd2257
commit 1ea89a4
Show file tree

Hide file tree

Showing 26 changed files with 1,101 additions and 91 deletions.
diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,44 @@
+1997-10-13 03:14  Ulrich Drepper  <drepper@cygnus.com>
+
+	* libc.map: Move _IO_fopen, fopen, _IO_stdin_, _IO_stdout_,
+	_IO_stderr_, _IO_list_all, and freopen to GLIBC_2.1 version.
+	* include/libc-symbol.h: Define define_symbol.
+	* libio/Makefile [$(versioning)=yes] (routines): Add oldiofopen and
+	oldfreopen.
+	[$(versioning)=yes] (aux): Add oldfileops and oldstdfiles.
+	* libio/fileops.c: Use _IO_FILE_complete when accessing _offset field.
+	* libio/freopen.c: Use versioning.
+	* libio/iofopen.c: Likewise.  Generate object of type
+	_IO_FILE_complete.
+	* libio/iofopen64.c: Generate object of type _IO_FILE_complete.
+	* libio/iolibio.h: Declare _IO_{old,new}_fopen and __{old,new}_freopen.
+	Define _IO_old_freopen.
+	* libio/libio.h: Remove _offset field from _IO_FILE.  Rename _unused2
+	field to _old_offset.  Declare _IO_std*_ streams as of type
+	_IO_FILE_complete.
+	* libio/libioP.h: Define _IO_FILE_complete.
+	Declare callbacks for old fileops implementation.
+	* libio/stdfile.c: Define standard stream of type _IO_FILE_complete.
+	* libio/stdio.c: Correctly address FILE part of standard streams.
+	* libio/oldfileops.c: New file.
+	* libio/oldfreopen.c: New file.
+	* libio/oldiofopen.c: New file.
+	* libio/oldstdfiles.c: New file.
+
+	* sysdeps/i386/fpu/bits/mathinline.h: Define fma optimization.
+
+	* sysdeps/libm-i387/e_scalb.S: Make sure code gets into .text section.
+	* sysdeps/libm-i387/e_scalbl.S: Likewise.
+	* sysdeps/libm-i387/s_fma.S: Fix typo.
+	* sysdeps/libm-i387/s_fmaf.S: Likewise.
+	* sysdeps/libm-i387/s_fmal.S: Likewise.
+
+1997-10-12 20:14  Zack Weinberg  <zack@rabi.phys.columbia.edu>
+
+	* sysdeps/stub/getsid.c: Add a stub_warning.
+	* sysdeps/stub/mmap.c: Likewise.
+	* sysdeps/stub/munmap.c: Likewise.
+
 1997-10-12 05:09  Ulrich Drepper  <drepper@cygnus.com>
 
 	* libio/Makefile (routines): Remove iofprintf.
@@ -36,9 +77,9 @@
 	* math/bits/mathcalls.h: Add nextafterx, scalbln, fma, lrint, llrint,
 	lround, and llround.
 	Change second argument of scalbn to `int'.
-	* sysdeps/libm-ieee754/s_fma.S: New file.
-	* sysdeps/libm-ieee754/s_fmaf.S: New file.
-	* sysdeps/libm-ieee754/s_fmal.S: New file.
+	* sysdeps/libm-ieee754/s_fma.c: New file.
+	* sysdeps/libm-ieee754/s_fmaf.c: New file.
+	* sysdeps/libm-ieee754/s_fmal.c: New file.
 	* sysdeps/libm-i387/s_fma.S: New file.
 	* sysdeps/libm-i387/s_fmaf.S: New file.
 	* sysdeps/libm-i387/s_fmal.S: New file.
@@ -51,10 +92,10 @@
 	* sysdeps/libm-ieee754/s_llrint.c: Remove version which works on
 	80bit double.
 	* sysdeps/libm-ieee754/s_lrint.c: Likewise.
-	* sysdeps/libm-ieee754/s_llrintf.S: New file.
-	* sysdeps/libm-ieee754/s_llrintl.S: New file.
-	* sysdeps/libm-ieee754/s_lrintf.S: New file.
-	* sysdeps/libm-ieee754/s_lrintl.S: New file.
+	* sysdeps/libm-ieee754/s_llrintf.c: New file.
+	* sysdeps/libm-ieee754/s_llrintl.c: New file.
+	* sysdeps/libm-ieee754/s_lrintf.c: New file.
+	* sysdeps/libm-ieee754/s_lrintl.c: New file.
 	* sysdeps/libm-i387/s_scalbln.c: New file.  Empty file.
 	* sysdeps/libm-i387/s_scalblnf.c: New file.  Empty file.
 	* sysdeps/libm-i387/s_scalblnl.c: New file.  Empty file.

diff --git a/include/libc-symbols.h b/include/libc-symbols.h
@@ -325,4 +325,11 @@ extern const char _libc_intl_domainname[];
 # endif	/* ELF.  */
 #endif	/* Have GNU ld.  */
 
+#if DO_VERSIONING
+# define symbol_version(real, name, version) \
+     __asm__ (".symver " #real "," #name "@" #version)
+#else
+# define symbol_version(real, name, version)
+#endif
+
 #endif /* libc-symbols.h */
diff --git a/libc.map b/libc.map
@@ -3,7 +3,6 @@ GLIBC_2.0 {
     # global variables
     _errno; _itoa_lower_digits; _itoa_upper_digits;
     __ctype_b; __ctype_tolower; __ctype_toupper;
-    _IO_stderr_; _IO_stdin_; _IO_stdout_;
     _nl_msg_cat_cntr; __environ; _environ; _res;
     ___brk_addr; __curbrk; _nl_current_LC_CTYPE; _libc_intl_domainname;
     _sys_errlist; _sys_siglist; __progname; _nl_default_dirname;
@@ -86,7 +85,7 @@ GLIBC_2.0 {
     _IO_remove_marker; _IO_marker_difference; _IO_marker_delta;
     _IO_seekmark; _IO_unsave_markers; _IO_str_overflow;
     _IO_str_underflow; _IO_str_init_static; _IO_str_init_readonly;
-    _IO_str_seekoff; _IO_str_pbackfail; _IO_list_all; _IO_file_jumps;
+    _IO_str_seekoff; _IO_str_pbackfail; _IO_file_jumps;
     _IO_peekc_locked;
     __vsscanf; __vfscanf; __vsnprintf;
     _rpc_dtablesize; _null_auth; _seterr_reply;
@@ -178,9 +177,9 @@ GLIBC_2.0 {
     ferror_unlocked; fexecve; fflush; fflush_unlocked; ffs; fgetc;
     fgetgrent; fgetgrent_r; fgetpos; fgetpos64; fgetpwent; fgetpwent_r; fgets;
     fgetspent; fgetspent_r; fileno; fileno_unlocked; finite; finitef;
-    finitel; flock; flockfile; fmtmsg; fnmatch; fopen; fopen64; fopencookie;
+    finitel; flock; flockfile; fmtmsg; fnmatch; fopen64; fopencookie;
     fork; fpathconf; fprintf; fputc; fputc_unlocked; fputs; fread; free;
-    freeaddrinfo; freopen; freopen64; frexp; frexpf; frexpl; fscanf; fseek;
+    freeaddrinfo; freopen64; frexp; frexpf; frexpl; fscanf; fseek;
     fseeko; fseeko64; fsetpos; fsetpos64; fstatfs; fstatfs64; fsync; ftell;
     ftello; ftello64; ftime; ftok; ftruncate; ftruncate64; ftrylockfile;
     fts_children; fts_close; fts_open; fts_read; fts_set; ftw; ftw64;
@@ -417,3 +416,9 @@ GLIBC_2.0 {
   local:
     *;
 };
+
+GLIBC_2.1 {
+  global:
+    _IO_fopen; fopen; _IO_stdin_; _IO_stdout_; _IO_stderr_; _IO_list_all;
+    freopen;
+} GLIBC_2.0;
diff --git a/libio/Makefile b/libio/Makefile
@@ -42,6 +42,10 @@ all: # Make this the default target; it will be defined in Rules.
 
 include ../Makeconfig
 
+ifeq ($(versioning),yes)
+routines += oldiofopen oldfreopen
+endif
+
 CPPFLAGS-.o += -DIO_DEBUG
 
 ifneq (,$(filter %REENTRANT, $(defines)))
@@ -54,6 +58,10 @@ endif
 aux	:=								      \
 	fileops genops stdfiles stdio strops
 
+ifeq ($(versioning),yes)
+aux	+= oldfileops oldstdfiles
+endif
+
 distribute := iolibio.h libioP.h strfile.h Banner
 
 include ../Rules
diff --git a/libio/fileops.c b/libio/fileops.c
@@ -109,10 +109,11 @@ void
 _IO_file_init (fp)
      _IO_FILE *fp;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   /* POSIX.1 allows another file handle to be used to change the position
      of our file descriptor.  Hence we actually don't know the actual
      position before we do the first fseek (and until a following fflush). */
-  fp->_offset = _IO_pos_BAD;
+  fc->_offset = _IO_pos_BAD;
   fp->_IO_file_flags |= CLOSED_FILEBUF_FLAGS;
 
   _IO_link_in(fp);
@@ -123,6 +124,7 @@ int
 _IO_file_close_it (fp)
      _IO_FILE *fp;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   int write_status, close_status;
   if (!_IO_file_is_open (fp))
     return EOF;
@@ -141,7 +143,7 @@ _IO_file_close_it (fp)
   _IO_un_link (fp);
   fp->_flags = _IO_MAGIC|CLOSED_FILEBUF_FLAGS;
   fp->_fileno = EOF;
-  fp->_offset = _IO_pos_BAD;
+  fc->_offset = _IO_pos_BAD;
 
   return close_status ? close_status : write_status;
 }
@@ -221,14 +223,15 @@ _IO_file_attach (fp, fd)
      _IO_FILE *fp;
      int fd;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   if (_IO_file_is_open (fp))
     return NULL;
   fp->_fileno = fd;
   fp->_flags &= ~(_IO_NO_READS+_IO_NO_WRITES);
   fp->_flags |= _IO_DELETE_DONT_CLOSE;
   /* Get the current position of the file. */
   /* We have to do that since that may be junk. */
-  fp->_offset = _IO_pos_BAD;
+  fc->_offset = _IO_pos_BAD;
   if (_IO_SEEKOFF (fp, (_IO_off64_t)0, _IO_seek_cur, _IOS_INPUT|_IOS_OUTPUT)
       == _IO_pos_BAD && errno != ESPIPE)
     return NULL;
@@ -260,6 +263,7 @@ _IO_do_write (fp, data, to_do)
      const char *data;
      _IO_size_t to_do;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   _IO_size_t count;
   if (to_do == 0)
     return 0;
@@ -269,14 +273,14 @@ _IO_do_write (fp, data, to_do)
        is not needed nor desirable for Unix- or Posix-like systems.
        Instead, just indicate that offset (before and after) is
        unpredictable. */
-    fp->_offset = _IO_pos_BAD;
+    fc->_offset = _IO_pos_BAD;
   else if (fp->_IO_read_end != fp->_IO_write_base)
     {
       _IO_fpos64_t new_pos
 	= _IO_SYSSEEK (fp, fp->_IO_write_base - fp->_IO_read_end, 1);
       if (new_pos == _IO_pos_BAD)
 	return EOF;
-      fp->_offset = new_pos;
+      fc->_offset = new_pos;
     }
   count = _IO_SYSWRITE (fp, data, to_do);
   if (fp->_cur_column)
@@ -292,6 +296,7 @@ int
 _IO_file_underflow (fp)
      _IO_FILE *fp;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   _IO_ssize_t count;
 #if 0
   /* SysV does not make this test; take it out for compatibility */
@@ -338,8 +343,8 @@ _IO_file_underflow (fp)
   fp->_IO_read_end += count;
   if (count == 0)
     return EOF;
-  if (fp->_offset != _IO_pos_BAD)
-    _IO_pos_adjust (fp->_offset, count);
+  if (fc->_offset != _IO_pos_BAD)
+    _IO_pos_adjust (fc->_offset, count);
   return *(unsigned char *) fp->_IO_read_ptr;
 }
 
@@ -398,6 +403,7 @@ int
 _IO_file_sync (fp)
      _IO_FILE *fp;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   _IO_size_t delta;
   int retval = 0;
 
@@ -424,7 +430,7 @@ _IO_file_sync (fp)
 	retval = EOF;
     }
   if (retval != EOF)
-    fp->_offset = _IO_pos_BAD;
+    fc->_offset = _IO_pos_BAD;
   /* FIXME: Cleanup - can this be shared? */
   /*    setg(base(), ptr, ptr); */
   _IO_cleanup_region_end (1);
@@ -438,6 +444,7 @@ _IO_file_seekoff (fp, offset, dir, mode)
      int dir;
      int mode;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) fp;
   _IO_fpos64_t result;
   _IO_off64_t delta, new_offset;
   long count;
@@ -473,10 +480,10 @@ _IO_file_seekoff (fp, offset, dir, mode)
     case _IO_seek_cur:
       /* Adjust for read-ahead (bytes is buffer). */
       offset -= fp->_IO_read_end - fp->_IO_read_ptr;
-      if (fp->_offset == _IO_pos_BAD)
+      if (fc->_offset == _IO_pos_BAD)
 	goto dumb;
       /* Make offset absolute, assuming current pointer is file_ptr(). */
-      offset += _IO_pos_as_off (fp->_offset);
+      offset += _IO_pos_as_off (fc->_offset);
 
       dir = _IO_seek_set;
       break;
@@ -497,11 +504,11 @@ _IO_file_seekoff (fp, offset, dir, mode)
   /* At this point, dir==_IO_seek_set. */
 
   /* If destination is within current buffer, optimize: */
-  if (fp->_offset != _IO_pos_BAD && fp->_IO_read_base != NULL
+  if (fc->_offset != _IO_pos_BAD && fp->_IO_read_base != NULL
       && !_IO_in_backup (fp))
     {
       /* Offset relative to start of main get area. */
-      _IO_fpos64_t rel_offset = (offset - fp->_offset
+      _IO_fpos64_t rel_offset = (offset - fc->_offset
 				 + (fp->_IO_read_end - fp->_IO_read_base));
       if (rel_offset >= 0)
 	{
@@ -575,7 +582,7 @@ _IO_file_seekoff (fp, offset, dir, mode)
   _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base + delta,
 	    fp->_IO_buf_base + count);
   _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
-  fp->_offset = result + count;
+  fc->_offset = result + count;
   _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
   return offset;
  dumb:
@@ -584,7 +591,7 @@ _IO_file_seekoff (fp, offset, dir, mode)
   result = _IO_SYSSEEK (fp, offset, dir);
   if (result != EOF)
     _IO_mask_flags (fp, 0, _IO_EOF_SEEN);
-  fp->_offset = result;
+  fc->_offset = result;
   _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base, fp->_IO_buf_base);
   _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base);
   return result;
@@ -637,6 +644,7 @@ _IO_file_write (f, data, n)
      const void *data;
      _IO_ssize_t n;
 {
+  struct _IO_FILE_complete *fc = (struct _IO_FILE_complete *) f;
   _IO_ssize_t to_do = n;
   while (to_do > 0)
     {
@@ -650,8 +658,8 @@ _IO_file_write (f, data, n)
       data = (void *) ((char *) data + count);
     }
   n -= to_do;
-  if (f->_offset >= 0)
-    f->_offset += n;
+  if (fc->_offset >= 0)
+    fc->_offset += n;
   return n;
 }
 

diff --git a/libio/freopen.c b/libio/freopen.c
@@ -27,7 +27,7 @@
 #include "stdio.h"
 
 FILE*
-freopen (filename, mode, fp)
+__new_freopen (filename, mode, fp)
      const char* filename;
      const char* mode;
      FILE* fp;
@@ -42,3 +42,5 @@ freopen (filename, mode, fp)
   _IO_cleanup_region_end (1);
   return result;
 }
+
+symbol_version (__new_freopen, freopen, GLIBC_2.1);
diff --git a/libio/iofopen.c b/libio/iofopen.c
@@ -29,13 +29,13 @@
 #endif
 
 _IO_FILE *
-_IO_fopen (filename, mode)
+_IO_new_fopen (filename, mode)
      const char *filename;
      const char *mode;
 {
   struct locked_FILE
   {
-    struct _IO_FILE_plus fp;
+    struct _IO_FILE_complete fp;
 #ifdef _IO_MTSAFE_IO
     _IO_lock_t lock;
 #endif
@@ -44,21 +44,28 @@ _IO_fopen (filename, mode)
   if (new_f == NULL)
     return NULL;
 #ifdef _IO_MTSAFE_IO
-  new_f->fp.file._lock = &new_f->lock;
+  new_f->fp.plus.file._lock = &new_f->lock;
 #endif
-  _IO_init (&new_f->fp.file, 0);
-  _IO_JUMPS (&new_f->fp.file) = &_IO_file_jumps;
-  _IO_file_init (&new_f->fp.file);
+  _IO_init (&new_f->fp.plus.file, 0);
+  _IO_JUMPS (&new_f->fp.plus.file) = &_IO_file_jumps;
+  _IO_file_init (&new_f->fp.plus.file);
 #if  !_IO_UNIFIED_JUMPTABLES
-  new_f->fp.vtable = NULL;
+  new_f->fp.plus.vtable = NULL;
 #endif
-  if (_IO_file_fopen (&new_f->fp.file, filename, mode, 0) != NULL)
-        return (_IO_FILE *) &new_f->fp;
-  _IO_un_link (&new_f->fp.file);
+  if (_IO_file_fopen (&new_f->fp.plus.file, filename, mode, 0) != NULL)
+        return (_IO_FILE *) &new_f->fp.plus;
+  _IO_un_link (&new_f->fp.plus.file);
   free (new_f);
   return NULL;
 }
 
-#ifdef weak_alias
-weak_alias (_IO_fopen, fopen)
+#ifdef DO_VERSIONING
+strong_alias (_IO_new_fopen, __new_fopen)
+symbol_version (_IO_new_fopen, _IO_fopen, GLIBC_2.1);
+symbol_version (__new_fopen, fopen, GLIBC_2.1);
+#else
+# ifdef weak_alias
+weak_symbol (_IO_new_fopen, _IO_fopen)
+weak_symbol (_IO_new_fopen, fopen)
+# endif
 #endif