Remove __bb_init_func and __bb_exit_func [BZ #21974]
Commit Message
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.
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
deleted file mode 100644
@@ -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