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yinshengkai
156ef05205
mcount.S: Assembler messages:
mcount.S:33: Error: cannot honor width suffix -- `bic r1,lr,#1'
mcount.S:35: Error: cannot honor width suffix -- `bic r0,r0,#1'
mcount.S:37: Error: cannot honor width suffix -- `pop {r0,r1,r2,r3,ip,lr}
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
43 lines
1.7 KiB
ArmAsm
43 lines
1.7 KiB
ArmAsm
/****************************************************************************
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* libs/libc/machine/arm/arch_mcount.S
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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.globl __gnu_mcount_nc
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.syntax unified
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.file "mcount.S"
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.type __gnu_mcount_nc, %function
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__gnu_mcount_nc:
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push {r0, r1, r2, r3, lr} /* Save registers */
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mov r1, lr
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bic r1, r1, #1 /* R1 contains callee address, with thumb bit cleared */
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ldr r0, [sp, #20] /* R0 contains caller address */
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bic r0, r0, #1 /* Clear thumb bit */
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bl mcount_internal /* Jump to internal _mcount() implementation */
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pop {r0, r1, r2, r3, ip, lr} /* Restore saved registers */
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bx ip /* Return to callee */
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.size __gnu_mcount_nc, .-__gnu_mcount_nc
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.end
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