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Remove __bb_init_func and __bb_exit_func [BZ #21974]

Message ID CAMe9rOq=TEFOBy2Uu4GXbRuSeVytk+mACcnxYcgF=iphdzL1xA@mail.gmail.com
State New, archived
Headers show

Commit Message

H.J. Lu Aug. 20, 2017, 1:49 p.m. UTC
On Sun, Aug 20, 2017 at 6:40 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Sun, Aug 20, 2017 at 12:50 AM, Florian Weimer <fw@deneb.enyo.de> wrote:
>> * H. J. Lu:
>>
>>>       [BZ #21974]
>>>       * gmon/Makefile (routines): Remove bb_init_func and
>>>       bb_exit_func.
>>>       (elide-routines.os): Removed.
>>
>> Looks good.  Several current architectures did not even have GCC 3.3
>> support, and yet we still provide these functions.
>
> This is what I checked in.
>

I will check in this patch to also remove sysdeps/alpha/bb_init_func.S.
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Patch

From fc77e888dedc85d249d51410a8f5e1ade512f668 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Sun, 20 Aug 2017 06:44:15 -0700
Subject: [PATCH] Remove sysdeps/alpha/bb_init_func.S

Since the generic __bb_init_func has been removed by commit 7ed87317c7fb,
there is no need for sysdeps/alpha/bb_init_func.S.

	[BZ #21974]
	* sysdeps/alpha/bb_init_func.S: Removed.
---
 sysdeps/alpha/bb_init_func.S | 86 --------------------------------------------
 1 file changed, 86 deletions(-)
 delete mode 100644 sysdeps/alpha/bb_init_func.S

diff --git a/sysdeps/alpha/bb_init_func.S b/sysdeps/alpha/bb_init_func.S
deleted file mode 100644
index a3064d8abc..0000000000
--- a/sysdeps/alpha/bb_init_func.S
+++ /dev/null
@@ -1,86 +0,0 @@ 
-/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-/* __bb_init_func is invoked at the beginning of each function, before
-   any registers have been saved.  It is therefore safe to use any
-   caller-saved (call-used) registers (except for argument registers
-   a1-a5). */
-
-#include <sysdep.h>
-
-/*
- * These offsets should match with "struct bb" declared in gcc/libgcc2.c.
- */
-#define	ZERO_WORD	0x00
-#define NEXT		0x20
-
-	.set	noat
-	.set	noreorder
-
-ENTRY(__bb_init_func)
-	.prologue 0
-
-	ldq	t0, ZERO_WORD(a0)	/* t0 <- blocks->zero_word */
-	beq	t0, init		/* not initialized yet -> */
-	ret
-
-END(__bb_init_func)
-
-	.ent init
-init:
-	.frame	sp, 0x38, ra, 0
-	subq	sp, 0x38, sp
-	.prologue 0
-
-	stq	pv, 0x30(sp)
-	br	pv, 1f
-1:	ldgp	gp, 0(pv)
-
-	ldiq	t1, __bb_head
-	lda	t3, _gmonparam
-	ldq	t2, 0(t1)
-	ldl	t3, 0(t3)		/* t3 = _gmonparam.state */
-	lda	t0, 1
-	stq	t0, ZERO_WORD(a0)	/* blocks->zero_word = 1 */
-	stq	t2, NEXT(a0)		/* blocks->next = __bb_head */
-	stq	a0, 0(t1)
-	bne	t2, $leave
-	beq	t3, $leave		/* t3 == GMON_PROF_ON? yes -> */
-
-	/* also need to initialize destructor: */
-	stq	ra, 0x00(sp)
-	lda	a0, __bb_exit_func
-	stq	a1, 0x08(sp)
-	lda	pv, atexit
-	stq	a2, 0x10(sp)
-	stq	a3, 0x18(sp)
-	stq	a4, 0x20(sp)
-	stq	a5, 0x28(sp)
-	jsr	ra, (pv), atexit
-	ldq	ra, 0x00(sp)
-	ldq	a1, 0x08(sp)
-	ldq	a2, 0x10(sp)
-	ldq	a3, 0x18(sp)
-	ldq	a4, 0x20(sp)
-	ldq	a5, 0x28(sp)
-
-$leave:	ldq	pv, 0x30(sp)
-	addq	sp, 0x38, sp
-	ret
-
-	.end init
-- 
2.13.5