Make the stub profiling stuff work

libc/sysdeps/linux/common/Makefile

@@ -36,10 +36,10 @@ CSRC=	__rt_sigtimedwait.c __socketcall.c __syscall_fcntl.c \
 	lstat.c lstat64.c madvise.c mkdir.c mkfifo.c mknod.c mlock.c \
 	mlockall.c mmap.c mmap64.c modify_ldt.c mount.c mprotect.c \
 	mremap.c msync.c munlock.c munlockall.c munmap.c nanosleep.c \
-	nice.c ntp_gettime.c open.c open64.c pause.c personality.c \
-	pipe.c pivot_root.c poll.c prctl.c pread_write.c ptrace.c \
-	query_module.c quotactl.c read.c readlink.c readv.c reboot.c \
-	rename.c rmdir.c sched_get_priority_max.c \
+	nice.c noophooks.c ntp_gettime.c open.c open64.c pause.c \
+	personality.c pipe.c pivot_root.c poll.c prctl.c pread_write.c \
+	ptrace.c query_module.c quotactl.c read.c readlink.c readv.c \
+	reboot.c rename.c rmdir.c sched_get_priority_max.c \
 	sched_get_priority_min.c sched_getparam.c sched_getscheduler.c \
 	sched_rr_get_interval.c sched_setparam.c sched_setscheduler.c \
 	sched_yield.c select.c sendfile.c sendfile64.c setdomainname.c \
@@ -57,9 +57,6 @@ CSRC=	__rt_sigtimedwait.c __socketcall.c __syscall_fcntl.c \
 ifneq ($(strip $(EXCLUDE_BRK)),y)
 CSRC+=sbrk.c
 endif
-ifeq ($(strip $(UCLIBC_PROFILING)),y)
-CSRC+=noophooks.c pcprofile.c
-endif
 ifeq ($(strip $(UCLIBC_PROPOLICE)),y)
 CSRC+=ssp.c
 endif

libc/sysdeps/linux/common/pcprofile.c

@@ -1,91 +0,0 @@
-/* Profile PC and write result to FIFO.
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
-
-   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.  */
-
-#define _GNU_SOURCE
-#include <features.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-/* Nonzero if we are actually doing something.  */
-static int active;
-
-/* The file descriptor of the FIFO.  */
-static int fd;
-
-
-static void __attribute__ ((constructor))
-install (void)
-{
-    /* See whether the environment variable `PCPROFILE_OUTPUT' is defined.
-       If yes, it should name a FIFO.  We open it and mark ourself as active.  */
-    const char *outfile = getenv ("PCPROFILE_OUTPUT");
-
-    if (outfile != NULL && *outfile != '\0')
-    {
-	fd = open (outfile, O_RDWR | O_CREAT, 0666);
-
-	if (fd != -1)
-	{
-	    uint32_t word;
-
-	    active = 1;
-
-	    /* Write a magic word which tells the reader about the byte
-	       order and the size of the following entries.  */
-	    word = 0xdeb00000 | sizeof (void *);
-	    if (TEMP_FAILURE_RETRY (write (fd, &word, 4)) != 4)
-	    {
-		/* If even this fails we shouldn't try further.  */
-		close (fd);
-		fd = -1;
-		active = 0;
-	    }
-	}
-    }
-}
-
-
-static void __attribute__ ((destructor))
-uninstall (void)
-{
-    if (active)
-	close (fd);
-}
-
-
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-{
-    void *buf[2];
-
-    if (! active)
-	return;
-
-    /* Now write out the current position and that of the caller.  We do
-       this now, and don't cache the because we want real-time output.  */
-    buf[0] = this_fn;
-    buf[1] = call_site;
-
-    write (fd, buf, sizeof buf);
-}
-/* We don't handle entry and exit differently here.  */
-strong_alias (__cyg_profile_func_enter, __cyg_profile_func_exit)