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40 lines
1.4 KiB
ArmAsm
40 lines
1.4 KiB
ArmAsm
/* PowerPC64-specific implementation of profiling support.
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Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* We don't need to save the parameter-passing registers as gcc takes
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care of that for us. Thus this function looks fairly normal.
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In fact, the generic code would work for us. */
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ENTRY(_mcount)
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mflr r4
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ld r11, 0(r1)
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stdu r1,-FRAME_MIN_SIZE(r1)
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cfi_adjust_cfa_offset (FRAME_MIN_SIZE)
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std r4, FRAME_MIN_SIZE+FRAME_LR_SAVE(r1)
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cfi_offset (lr, FRAME_LR_SAVE)
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ld r3, FRAME_LR_SAVE(r11)
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bl JUMPTARGET(__mcount_internal)
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nop
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ld r0, FRAME_MIN_SIZE+FRAME_LR_SAVE(r1)
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mtlr r0
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addi r1,r1,FRAME_MIN_SIZE
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blr
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END(_mcount)
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