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

6 files changed, 0 insertions, 89 deletions

diff --git a/libc/sysdeps/linux/alpha/__longjmp.S b/libc/sysdeps/linux/alpha/__longjmp.S
index 2db4e22e9..b78489f53 100644
--- a/libc/sysdeps/linux/alpha/__longjmp.S
+++ b/libc/sysdeps/linux/alpha/__longjmp.S
@@ -29,16 +29,7 @@
 
 __longjmp:
 	.frame $30 , 0, $26
-#ifdef PROF
-	ldgp    gp, 0(pv)
-	.set noat
-	lda     AT, _mcount
-	jsr     AT, (AT), _mcount
-	.set at
-	.prologue 1
-#else
 	.prologue 0
-#endif
 
 	mov     $17, $0
 	ldq     $9, JB_S0*8(a0)
diff --git a/libc/sysdeps/linux/alpha/bits/machine-gmon.h b/libc/sysdeps/linux/alpha/bits/machine-gmon.h
deleted file mode 100644
index 5f5522c0b..000000000
--- a/libc/sysdeps/linux/alpha/bits/machine-gmon.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Machine-specific calling sequence for `mcount' profiling function.  alpha
-   Copyright (C) 1995, 1996, 1997 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.  */
-
-#define _MCOUNT_DECL(from, self) \
- void __mcount (u_long from, u_long self)
-
-/* Call __mcount with our the return PC for our caller, and the return
-   PC our caller will return to.  Empty since we use an assembly stub
-   instead. */
-#define MCOUNT
diff --git a/libc/sysdeps/linux/alpha/brk.S b/libc/sysdeps/linux/alpha/brk.S
index 8c70a0ce5..4e15518d2 100644
--- a/libc/sysdeps/linux/alpha/brk.S
+++ b/libc/sysdeps/linux/alpha/brk.S
@@ -46,12 +46,6 @@ __brk:
     .frame $30 ,   8 , $26
 	ldgp	$29, 0($27)
 	subq	$30, 8, $30
-#ifdef PROF
-	.set noat
-	lda	AT, _mcount
-	jsr	AT, (AT), _mcount
-	.set at
-#endif
 	.prologue 1
 
 	/* Save the requested brk across the system call.  */
diff --git a/libc/sysdeps/linux/alpha/clone.S b/libc/sysdeps/linux/alpha/clone.S
index b17a5ec68..396816184 100644
--- a/libc/sysdeps/linux/alpha/clone.S
+++ b/libc/sysdeps/linux/alpha/clone.S
@@ -44,16 +44,7 @@
 
 __clone:
 	.frame $30 , 0, $26
-#ifdef PROF
-	ldgp	gp,0(pv)
-	.set noat
-	lda	AT, _mcount
-	jsr	AT, (AT), _mcount
-	.set at
-	.prologue 1
-#else
 	.prologue 0
-#endif
 
 	/* Sanity check arguments.  */
 	ldiq	v0,EINVAL
@@ -78,10 +69,8 @@ __clone:
 
 	/* Something bad happened -- no child created */
 $error:
-#ifndef PROF
 	br	gp,1f
 1:	ldgp	gp,0(gp)
-#endif
 	jmp	zero,__syscall_error
 
 .end __clone
diff --git a/libc/sysdeps/linux/alpha/divrem.h b/libc/sysdeps/linux/alpha/divrem.h
index d22759e40..ca3db4b49 100644
--- a/libc/sysdeps/linux/alpha/divrem.h
+++ b/libc/sysdeps/linux/alpha/divrem.h
@@ -130,22 +130,6 @@
 UFUNC_NAME:
 	lda	sp, -STACK(sp)
 	.frame	sp, STACK, retaddr, 0
-#ifdef PROF
-	stq	ra, 0(sp)
-	stq	pv, 8(sp)
-	stq	gp, 16(sp)
-
-	br	AT, 1f
-1:	ldgp	gp, 0(AT)
-
-	mov	retaddr, ra
-	lda	AT, _mcount
-	jsr	AT, (AT), _mcount
-
-	ldq	ra, 0(sp)
-	ldq	pv, 8(sp)
-	ldq	gp, 16(sp)
-#endif
 	.prologue 0
 
 $udiv:
@@ -216,21 +200,6 @@ $divbyzero:
 SFUNC_NAME:
 	lda	sp, -STACK(sp)
 	.frame	sp, STACK, retaddr, 0
-#ifdef PROF
-	stq	ra, 0(sp)
-	stq	pv, 8(sp)
-	stq	gp, 16(sp)
-
-	br	AT, 1f
-1:	ldgp	gp, 0(AT)
-
-	mov	retaddr, ra
-	jsr	AT, _mcount
-
-	ldq	ra, 0(sp)
-	ldq	pv, 8(sp)
-	ldq	gp, 16(sp)
-#endif
 	.prologue 0
 
 	or	arg1, arg2, AT
diff --git a/libc/sysdeps/linux/alpha/setjmp.S b/libc/sysdeps/linux/alpha/setjmp.S
index 69649eeab..105cc8292 100644
--- a/libc/sysdeps/linux/alpha/setjmp.S
+++ b/libc/sysdeps/linux/alpha/setjmp.S
@@ -34,12 +34,6 @@ $sigsetjmp_local:
        .frame  $26, 16, $26, 0
        stq     $26, 0($30)
        .mask   0x04000000, -16
-#ifdef PROF
-	.set noat
-	lda	AT, _mcount
-	jsr	AT, (AT), _mcount
-	.set at
-#endif
 	.prologue 1
 
 	stq	$9, JB_S0*8(a0)