GNU C Library master sources branch hjl/pr21974 created. glibc-2.26-133-g8e43da2

[hjl at sourceware dot org]

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commit 8e43da2c00c4b6626fc489eddf1a30abb2f49d7e
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Aug 18 14:54:56 2017 -0700

    Remove __bb_init_func and __bb_exit_func [BZ #21974]
    
    __bb_init_func and __bb_exit_func have been removed from GCC 3.3 in
    2002 by
    
    https://gcc.gnu.org/ml/gcc-patches/2002-09/msg00499.html
    
    which also recommended that they should also be removed from glibc. These
    functions exist only in libc.a and are used for gcov from versions of GCC
    older than GCC 3.3.
    
    	[BZ #21974]
    	* gmon/Makefile (routines): Remove bb_init_func and
    	bb_exit_func.
    	(elide-routines.os): Removed.

diff --git a/gmon/Makefile b/gmon/Makefile
index 39f11ac..ea5d884 100644
--- a/gmon/Makefile
+++ b/gmon/Makefile
@@ -23,9 +23,7 @@ subdir	:= gmon
 include ../Makeconfig
 
 headers	:= sys/gmon.h sys/gmon_out.h sys/profil.h
-routines := gmon mcount profil sprofil bb_init_func bb_exit_func prof-freq
-
-elide-routines.os = bb_init_func bb_exit_func
+routines := gmon mcount profil sprofil prof-freq
 
 tests	= tst-sprofil tst-gmon
 ifeq ($(build-profile),yes)
diff --git a/gmon/bb_exit_func.c b/gmon/bb_exit_func.c
deleted file mode 100644
index 3ad344a..0000000
--- a/gmon/bb_exit_func.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-/* __bb_exit_func() dumps all the basic-block statistics linked into
-   the __bb_head chain to .d files.  */
-
-#include <sys/gmon.h>
-#include <sys/gmon_out.h>
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <stdio_ext.h>
-#include <string.h>
-
-#define OUT_NAME	"gmon.out"
-
-
-extern struct __bb *__bb_head attribute_hidden;
-
-
-void
-__bb_exit_func (void)
-{
-  const int version = GMON_VERSION;
-  struct gmon_hdr ghdr;
-  struct __bb *ptr;
-  FILE *fp;
-  fp = fopen (OUT_NAME, "wb");
-  if (!fp)
-    {
-      perror (OUT_NAME);
-      return;
-    }
-  /* No threads use this stream.  */
-  __fsetlocking (fp, FSETLOCKING_BYCALLER);
-
-  memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
-  memcpy (&ghdr.version, &version, sizeof (version));
-  fwrite_unlocked (&ghdr, sizeof (ghdr), 1, fp);
-
-  for (ptr = __bb_head; ptr != 0; ptr = ptr->next)
-    {
-      u_int ncounts = ptr->ncounts;
-      u_char tag;
-      u_int i;
-
-      tag = GMON_TAG_BB_COUNT;
-      fwrite_unlocked (&tag, sizeof (tag), 1, fp);
-      fwrite_unlocked (&ncounts, sizeof (ncounts), 1, fp);
-
-      for (i = 0; i < ncounts; ++i)
-	{
-	  fwrite_unlocked (&ptr->addresses[i], sizeof (ptr->addresses[0]), 1,
-			   fp);
-	  fwrite_unlocked (&ptr->counts[i], sizeof (ptr->counts[0]), 1, fp);
-	}
-    }
-  fclose (fp);
-}
diff --git a/gmon/bb_init_func.c b/gmon/bb_init_func.c
deleted file mode 100644
index e0fe756..0000000
--- a/gmon/bb_init_func.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-/* __bb_init_func is invoked at the beginning of each function, before
-   any registers have been saved.  This generic routine should work
-   provided that calling this function doesn't mangle the arguments
-   passed to the function being called.  If that's not the case, a
-   system specific routine must be provided.  */
-
-#include <sys/types.h>
-#include <sys/gmon.h>
-
-#include <stdlib.h>
-
-void
-__bb_init_func (struct __bb *bb)
-{
-  struct gmonparam *p = &_gmonparam;
-
-  if (bb->zero_word != 0)
-    {
-      return;	/* handle common case quickly */
-    }
-
-  /* insert this basic-block into basic-block list: */
-  bb->zero_word = 1;
-  bb->next = __bb_head;
-  __bb_head = bb;
-
-  if (bb->next == 0 && p->state != GMON_PROF_ON)
-    {
-      /* we didn't register _mcleanup yet and pc profiling doesn't seem
-	 to be active, so let's register it now: */
-      extern void *__dso_handle __attribute__ ((__weak__));
-      __cxa_atexit ((void (*) (void *)) _mcleanup, NULL,
-		    &__dso_handle ? __dso_handle : NULL);
-    }
-}

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