8c8b25e388
Add profile support for ARC processors. libgloss/ 2016-07-28 Claudiu Zissulescu <claziss@synopsys.com> * arc/crt0.S: Add calls to profiler support routines. * Makefile.in (CRT0): Add gcrt0. (NSIM_OBJS): Add mcount. (CRT0_INSTALL): Install gcrt0, and crt0. * arc/gcrt0.S: New file. * arc/mcount.c: Likewise.
80 lines
2.4 KiB
ArmAsm
80 lines
2.4 KiB
ArmAsm
/*
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Copyright (c) 2016, Synopsys, Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1) Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2) Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3) Neither the name of the Synopsys, Inc., nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#define PROFILE_SUPPORT 1
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#include "crt0.S"
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.global __mcount
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.type __mcount, @function
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.align 4
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__mcount:
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;; When a function is compiled for profiling, gcc will insert
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;; a call to __mcount without checking for resources. Hence,
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;; we need save all of the argument registers and temp registers,
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;; extract the address of <func_name>, and call the _mcount_internal
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;; to do the real work. Finally, restore all the argument registers
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;; before returning.
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push_s blink
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push_s r0
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push_s r1
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push_s r2
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push_s r3
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#ifndef __ARC_RF16__
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push r4
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push r5
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push r6
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push r7
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push r8
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push r9
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#endif
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push r10
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push r11
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push r12
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mov r0,blink
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jl @_mcount_internal
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pop r12
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pop r11
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pop r10
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#ifndef __ARC_RF16__
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pop r9
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pop r8
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pop r7
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pop r6
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pop r5
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pop r4
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#endif
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pop_s r3
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pop_s r2
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pop_s r1
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pop_s r0
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pop_s blink
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j_s [blink]
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.size __mcount, . - __mcount
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