Kill off all support for 'gcc -pg' / 'gprof' style profiling. There is both a

size and performance penalty to profiling applications this way, as well as
Heisenberg effects, where the act of measuring changes what is measured.
There are better tools for doing profiling, such as OProfile, that do not
require gcc to instrument the application code.
 -Erik

1 files changed, 0 insertions, 58 deletions

diff --git a/libc/sysdeps/linux/common/gmon-start.c b/libc/sysdeps/linux/common/gmon-start.c
deleted file mode 100644
index 6878a7a71..000000000
--- a/libc/sysdeps/linux/common/gmon-start.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/* Code to enable profiling at program startup.
-   Copyright (C) 1995,1996,1997,2000,2001,2002 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <features.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/gmon.h>
-
-#ifdef __UCLIBC_PROFILING__
-
-/* Beginning and end of our code segment. We cannot declare them
-   as the external functions since we want the addresses of those
-   labels. Taking the address of a function may have different
-   meanings on different platforms. */
-
-extern void _start;
-extern void etext;
-
-
-void __gmon_start__ (void)
-{
-#ifdef __UCLIBC_CTOR_DTOR__
-    /* Protect from being called more than once.  Since crti.o is linked
-       into every shared library, each of their init functions will call us.  */
-    static int called;
-
-    if (called)
-	return;
-
-    called = 1;
-#endif
-
-    /* Start keeping profiling records.  */
-    monstartup ((u_long) &_start, (u_long) &etext);
-
-    /* Call _mcleanup before exiting; it will write out gmon.out from the
-       collected data.  */
-    atexit (&_mcleanup);
-}
-#endif
-