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  1.   55170d13473ed24b54c544222ff370417496d02f
  2.   sysdeps
  3.   powerpc
  4.   powerpc32
  5.   dl-trampoline.S
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/* PLT trampolines.  PPC32 version.
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   Copyright (C) 2005-2018 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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	.section ".text"
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	.align 2
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	.globl _dl_runtime_resolve
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	.type _dl_runtime_resolve,@function
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_dl_runtime_resolve:
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	cfi_startproc
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 # We need to save the registers used to pass parameters, and register 0,
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 # which is used by _mcount; the registers are saved in a stack frame.
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	stwu r1,-64(r1)
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	cfi_adjust_cfa_offset (64)
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	stw r0,12(r1)
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	stw r3,16(r1)
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	stw r4,20(r1)
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 # The code that calls this has put parameters for `fixup' in r12 and r11.
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	mr r3,r12
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	stw r5,24(r1)
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	mr r4,r11
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	stw r6,28(r1)
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	mflr r0
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 # We also need to save some of the condition register fields
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	stw r7,32(r1)
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 # Don't clobber the caller's LRSAVE, it is needed by _mcount.
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	stw r0,48(r1)
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 	cfi_offset (lr, -16)
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	stw r8,36(r1)
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	mfcr r0
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	stw r9,40(r1)
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	stw r10,44(r1)
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	stw r0,8(r1)
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	bl _dl_fixup@local
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 # 'fixup' returns the address we want to branch to.
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	mtctr r3
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 # Put the registers back...
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	lwz r0,48(r1)
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	lwz r10,44(r1)
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	lwz r9,40(r1)
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	mtlr r0
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	lwz r8,36(r1)
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	lwz r0,8(r1)
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	lwz r7,32(r1)
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	lwz r6,28(r1)
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	mtcrf 0xFF,r0
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	lwz r5,24(r1)
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	lwz r4,20(r1)
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	lwz r3,16(r1)
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	lwz r0,12(r1)
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 # ...unwind the stack frame, and jump to the PLT entry we updated.
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	addi r1,r1,64
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	bctr
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	cfi_endproc
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	.size	 _dl_runtime_resolve,.-_dl_runtime_resolve
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#ifndef PROF
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	.align 2
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	.globl _dl_prof_resolve
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	.type _dl_prof_resolve,@function
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_dl_prof_resolve:
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	cfi_startproc
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 # We need to save the registers used to pass parameters, and register 0,
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 # which is used by _mcount; the registers are saved in a stack frame.
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	stwu r1,-320(r1)
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	cfi_adjust_cfa_offset (320)
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	/* Stack layout:
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	  +312   stackframe
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	  +308   lr
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	  +304   r1
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	  +288   v12
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	  +272   v11
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	  +256   v10
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	  +240   v9
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	  +224   v8
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	  +208   v7
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	  +192   v6
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	  +176   v5
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	  +160   v4
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	  +144   v3
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	  +128   v2
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	  +112   v1
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	  +104   fp8
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	  +96    fp7
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	  +88    fp6
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	  +80    fp5
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	  +72    fp4
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	  +64    fp3
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	  +56    fp2
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	  +48    fp1
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	  +44    r10
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	  +40    r9
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	  +36    r8
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	  +32    r7
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	  +28    r6
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	  +24    r5
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	  +20    r4
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	  +16    r3
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	  +12    r0
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	  +8     cr
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	   r1    link
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	*/
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        stw r0,12(r1)
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	stw r3,16(r1)
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	stw r4,20(r1)
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 # The code that calls this has put parameters for `fixup' in r12 and r11.
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	mr r3,r12
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	stw r5,24(r1)
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	mr r4,r11
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	stw r6,28(r1)
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	mflr r5
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 # We also need to save some of the condition register fields.
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	stw r7,32(r1)
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 # Don't clobber the caller's LRSAVE, it is needed by _mcount.
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	stw r5,308(r1)
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	cfi_offset (lr, -12)
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	stw r8,36(r1)
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	mfcr r0
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	stw r9,40(r1)
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	stw r10,44(r1)
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	stw r0,8(r1)
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#ifndef __NO_FPRS__
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 # Save the floating point registers
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	stfd fp1,48(r1)
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	stfd fp2,56(r1)
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	stfd fp3,64(r1)
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	stfd fp4,72(r1)
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	stfd fp5,80(r1)
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	stfd fp6,88(r1)
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	stfd fp7,96(r1)
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	stfd fp8,104(r1)
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#endif
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 # XXX TODO: store vmx registers
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 # Load the extra parameters.
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	addi r6,r1,16
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	addi r7,r1,312
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	li r0,-1
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	stw r0,0(r7)
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	bl _dl_profile_fixup@local
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 # 'fixup' returns the address we want to branch to.
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	mtctr r3
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 # Put the registers back...
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	lwz r0,308(r1)
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	lwz r10,44(r1)
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	lwz r9,40(r1)
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	mtlr r0
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	lwz r8,36(r1)
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	lwz r0,8(r1)
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	lwz r7,32(r1)
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	lwz r6,28(r1)
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	mtcrf 0xFF,r0
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	lwz r5,24(r1)
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	lwz r4,20(r1)
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	lwz r3,16(r1)
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        lwz r0,12(r1)
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#ifndef __NO_FPRS__
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 # Load the floating point registers.
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	lfd fp1,48(r1)
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	lfd fp2,56(r1)
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	lfd fp3,64(r1)
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	lfd fp4,72(r1)
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	lfd fp5,80(r1)
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	lfd fp6,88(r1)
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	lfd fp7,96(r1)
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	lfd fp8,104(r1)
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#endif
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 # ...unwind the stack frame, and jump to the PLT entry we updated.
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	addi r1,r1,320
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	bctr
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	cfi_endproc
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	.size	 _dl_prof_resolve,.-_dl_prof_resolve
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#endif

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