[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / powerpc / powerpc64 / getcontext.S

/* Save current context.
   Copyright (C) 2002-2016 Free Software Foundation, Inc.
   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/>.  */

#include <sysdep.h>
#include <rtld-global-offsets.h>
#include <shlib-compat.h>

#define __ASSEMBLY__
#include <asm/ptrace.h>
#include <asm/errno.h>
#include "ucontext_i.h"


#if SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)
ENTRY(__novec_getcontext)
	CALL_MCOUNT 1
  std  r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
  std  r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
  mflr  r0
  std  r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
  std  r0,FRAME_LR_SAVE(r1)
  cfi_offset (lr, FRAME_LR_SAVE)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
  stdu  r1,-128(r1)
  cfi_adjust_cfa_offset (128)
  std  r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3)
  std  r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3)
  std  r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3)
  std  r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3)
  std  r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3)
  std  r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3)
  std  r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3)
  std  r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
  std  r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3)
  std  r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3)
  std  r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3)
  std  r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3)
  std  r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3)
  std  r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3)
  std  r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3)
  std  r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3)
  std  r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3)
  std  r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3)
  std  r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3)
  std  r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3)
  std  r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3)
  std  r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3)
  std  r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3)
  std  r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3)
  std  r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3)
  std  r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
  std  r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3)
  std  r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3)
  mfctr  r0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3)
  mfxer  r0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3)
  mfcr  r0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r3)

  /* Set the return value of swapcontext to "success".  R3 is the only
     register whose value is not preserved in the saved context.  */
  li   r0,0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3)

  /* Zero fill fields that can't be set in user state or are unused.  */
  std  r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(34*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(40*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(41*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(42*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3)

  /* Set the PT_REGS pointer to the address of sigcontext's gp_regs
     field.  Struct pt_regs and elf_gregset_t are the same thing.
     We kept the regs field for backwards compatibility with
     libraries built before we extended sigcontext.  */
  addi r0,r3,SIGCONTEXT_GP_REGS
  std  r0,SIGCONTEXT_PT_REGS(r3)

  stfd  fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3)
  stfd  fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3)
  stfd  fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3)
  stfd  fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3)
  stfd  fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3)
  stfd  fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3)
  stfd  fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3)
  stfd  fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3)
  stfd  fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3)
  stfd  fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3)
  stfd  fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3)
  stfd  fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3)
  stfd  fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3)
  stfd  fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3)
  stfd  fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3)
  stfd  fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3)
  stfd  fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3)
  stfd  fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3)
  stfd  fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3)
  stfd  fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3)
  stfd  fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3)
  stfd  fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3)
  stfd  fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3)
  stfd  fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3)
  stfd  fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3)
  stfd  fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3)
  stfd  fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3)
  stfd  fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3)
  stfd  fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3)
  stfd  fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r3)
  mffs  fp0
  stfd  fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3)
  stfd  fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3)
  stfd  fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3)

  addi  r5,r3,UCONTEXT_SIGMASK
  li  r4,0
  li  r3,SIG_BLOCK
  bl  JUMPTARGET(__sigprocmask)
  nop

  ld    r0,128+FRAME_LR_SAVE(r1)
  addi  r1,r1,128
  mtlr  r0
  blr
PSEUDO_END(__novec_getcontext)

compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3)

#endif

	.section	".toc","aw"
.LC__dl_hwcap:
#ifdef SHARED
	.tc _rtld_global_ro[TC],_rtld_global_ro
#else
	.tc _dl_hwcap[TC],_dl_hwcap
#endif
	.section ".text"

	.machine	"altivec"
ENTRY(__getcontext)
	CALL_MCOUNT 1
  std  r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
  std  r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
  mflr  r0
  std  r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
  std  r0,FRAME_LR_SAVE(r1)
  cfi_offset (lr, FRAME_LR_SAVE)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
  stdu  r1,-128(r1)
  cfi_adjust_cfa_offset (128)
  std  r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3)
  std  r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3)
  std  r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3)
  std  r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3)
  std  r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3)
  std  r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3)
  std  r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3)
  std  r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
  std  r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3)
  std  r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3)
  std  r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3)
  std  r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3)
  std  r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3)
  std  r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3)
  std  r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3)
  std  r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3)
  std  r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3)
  std  r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3)
  std  r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3)
  std  r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3)
  std  r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3)
  std  r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3)
  std  r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3)
  std  r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3)
  std  r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3)
  std  r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
  std  r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3)
  std  r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3)
  mfctr  r0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3)
  mfxer  r0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3)
  mfcr  r0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r3)

  /* Set the return value of swapcontext to "success".  R3 is the only
     register whose value is not preserved in the saved context.  */
  li   r0,0
  std  r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3)

  /* Zero fill fields that can't be set in user state or are unused.  */
  std  r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(34*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(40*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(41*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(42*8))(r3)
  std  r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3)

  /* Set the PT_REGS pointer to the address of sigcontext's gp_regs
     field.  Struct pt_regs and elf_gregset_t are the same thing.
     We kept the regs field for backwards compatibility with
     libraries built before we extended sigcontext.  */
  addi r0,r3,SIGCONTEXT_GP_REGS
  std  r0,SIGCONTEXT_PT_REGS(r3)

  stfd  fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3)
  stfd  fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3)
  stfd  fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3)
  stfd  fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3)
  stfd  fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3)
  stfd  fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3)
  stfd  fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3)
  stfd  fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3)
  stfd  fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3)
  stfd  fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3)
  stfd  fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3)
  stfd  fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3)
  stfd  fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3)
  stfd  fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3)
  stfd  fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3)
  stfd  fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3)
  stfd  fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3)
  stfd  fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3)
  stfd  fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3)
  stfd  fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3)
  stfd  fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3)
  stfd  fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3)
  stfd  fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3)
  stfd  fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3)
  stfd  fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3)
  stfd  fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3)
  stfd  fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3)
  stfd  fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3)
  stfd  fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3)
  stfd  fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r3)
  mffs  fp0
  stfd  fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3)
  stfd  fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3)
  stfd  fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3)

  ld    r5,.LC__dl_hwcap@toc(r2)
# ifdef SHARED
/* Load _rtld-global._dl_hwcap.  */
  ld    r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r5)
# else
  ld    r5,0(r5) /* Load extern _dl_hwcap.  */
# endif
  la    r10,(SIGCONTEXT_V_RESERVE+8)(r3)
  la    r9,(SIGCONTEXT_V_RESERVE+24)(r3)

  andis.  r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)

  clrrdi  r10,r10,4
  beq   L(has_no_vec)
  clrrdi  r9,r9,4
  mr    r5,r10	/* Capture *v_regs value in r5.  */

  stvx  v0,0,r10
  stvx  v1,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v2,0,r10
  stvx  v3,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v4,0,r10
  stvx  v5,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v6,0,r10
  stvx  v7,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v8,0,r10
  stvx  v9,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v10,0,r10
  stvx  v11,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v12,0,r10
  stvx  v13,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v14,0,r10
  stvx  v15,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v16,0,r10
  stvx  v17,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v18,0,r10
  stvx  v19,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v20,0,r10
  stvx  v21,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v22,0,r10
  stvx  v23,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v24,0,r10
  stvx  v25,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v26,0,r10
  stvx  v27,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v28,0,r10
  stvx  v29,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  stvx  v30,0,r10
  stvx  v31,0,r9
  addi  r10,r10,32
  addi  r9,r9,32

  mfvscr  v0
  mfspr r0,VRSAVE
  stvx  v0,0,r10
  stw   r0,0(9)

L(has_no_vec):
/*
   Store either a NULL or a quadword aligned pointer to the Vector register
   array into *v_regs.
*/
  std   r5,(SIGCONTEXT_V_REGS_PTR)(r3)

  addi  r5,r3,UCONTEXT_SIGMASK
  li  r4,0
  li  r3,SIG_BLOCK
  bl  JUMPTARGET(__sigprocmask)
  nop

  ld    r0,128+FRAME_LR_SAVE(r1)
  addi  r1,r1,128
  mtlr  r0
  blr
PSEUDO_END(__getcontext)

versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
Commit	Line	Data
609b4783	1	/* Save current context.
f7a9f785	2	Copyright (C) 2002-2016 Free Software Foundation, Inc.
609b4783 UD	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	16	License along with the GNU C Library; if not, see
59ba27a6 PE	17	<http://www.gnu.org/licenses/>. */
609b4783 UD	18
609b4783 UD	19	#include <sysdep.h>
5ef6ae4b UD	20	#include <rtld-global-offsets.h>
5ef6ae4b UD	21	#include <shlib-compat.h>
609b4783 UD	22
	23	#define __ASSEMBLY__
	24	#include <asm/ptrace.h>
38e68573	25	#include <asm/errno.h>
609b4783 UD	26	#include "ucontext_i.h"
609b4783 UD	27
5ef6ae4b UD	28
	29	#if SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)
	30	ENTRY(__novec_getcontext)
865d953f	31	CALL_MCOUNT 1
609b4783 UD	32	std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
	33	std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
	34	mflr r0
	35	std r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
	36	std r0,FRAME_LR_SAVE(r1)
a7e91561	37	cfi_offset (lr, FRAME_LR_SAVE)
609b4783 UD	38	std r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
	39	std r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
	40	stdu r1,-128(r1)
a7e91561	41	cfi_adjust_cfa_offset (128)
609b4783 UD	42	std r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3)
	43	std r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3)
	44	std r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3)
	45	std r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3)
	46	std r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3)
	47	std r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3)
	48	std r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3)
	49	std r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
	50	std r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3)
	51	std r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3)
	52	std r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3)
	53	std r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3)
	54	std r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3)
	55	std r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3)
	56	std r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3)
	57	std r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3)
	58	std r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3)
	59	std r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3)
	60	std r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3)
	61	std r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3)
	62	std r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3)
	63	std r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3)
	64	std r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3)
	65	std r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3)
	66	std r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3)
	67	std r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
	68	std r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3)
	69	std r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3)
	70	mfctr r0
	71	std r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3)
	72	mfxer r0
	73	std r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3)
	74	mfcr r0
	75	std r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r3)
afdca0f2 UD	76
afdca0f2 UD	77	/* Set the return value of swapcontext to "success". R3 is the only
609b4783 UD	78	register whose value is not preserved in the saved context. */
	79	li r0,0
	80	std r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3)
afdca0f2	81
609b4783 UD	82	/* Zero fill fields that can't be set in user state or are unused. */
	83	std r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3)
	84	std r0,(SIGCONTEXT_GP_REGS+(34*8))(r3)
	85	std r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3)
	86	std r0,(SIGCONTEXT_GP_REGS+(40*8))(r3)
	87	std r0,(SIGCONTEXT_GP_REGS+(41*8))(r3)
	88	std r0,(SIGCONTEXT_GP_REGS+(42*8))(r3)
	89	std r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3)
afdca0f2 UD	90
	91	/* Set the PT_REGS pointer to the address of sigcontext's gp_regs
	92	field. Struct pt_regs and elf_gregset_t are the same thing.
609b4783 UD	93	We kept the regs field for backwards compatibility with
	94	libraries built before we extended sigcontext. */
	95	addi r0,r3,SIGCONTEXT_GP_REGS
	96	std r0,SIGCONTEXT_PT_REGS(r3)
afdca0f2	97
609b4783 UD	98	stfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3)
	99	stfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3)
	100	stfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3)
	101	stfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3)
	102	stfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3)
	103	stfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3)
	104	stfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3)
	105	stfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3)
	106	stfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3)
	107	stfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3)
	108	stfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3)
	109	stfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3)
	110	stfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3)
	111	stfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3)
	112	stfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3)
	113	stfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3)
	114	stfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3)
	115	stfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3)
	116	stfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3)
	117	stfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3)
	118	stfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3)
	119	stfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3)
	120	stfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3)
	121	stfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3)
	122	stfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3)
	123	stfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3)
	124	stfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3)
	125	stfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3)
	126	stfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3)
b86d92c0	127	stfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r3)
609b4783 UD	128	mffs fp0
	129	stfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3)
	130	stfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3)
	131	stfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3)
	132
5ef6ae4b UD	133	addi r5,r3,UCONTEXT_SIGMASK
	134	li r4,0
	135	li r3,SIG_BLOCK
d980f41a	136	bl JUMPTARGET(__sigprocmask)
5ef6ae4b	137	nop
afdca0f2 UD	138
afdca0f2 UD	139	ld r0,128+FRAME_LR_SAVE(r1)
5ef6ae4b UD	140	addi r1,r1,128
	141	mtlr r0
	142	blr
	143	PSEUDO_END(__novec_getcontext)
	144
	145	compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3)
	146
	147	#endif
	148
	149	.section ".toc","aw"
	150	.LC__dl_hwcap:
	151	#ifdef SHARED
afdca0f2	152	.tc _rtld_global_ro[TC],_rtld_global_ro
5ef6ae4b UD	153	#else
5ef6ae4b UD	154	.tc _dl_hwcap[TC],_dl_hwcap
afdca0f2	155	#endif
5ef6ae4b UD	156	.section ".text"
5ef6ae4b UD	157
f2bfeadf	158	.machine "altivec"
5ef6ae4b	159	ENTRY(__getcontext)
865d953f	160	CALL_MCOUNT 1
5ef6ae4b UD	161	std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
	162	std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
	163	mflr r0
	164	std r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3)
	165	std r0,FRAME_LR_SAVE(r1)
a7e91561	166	cfi_offset (lr, FRAME_LR_SAVE)
5ef6ae4b UD	167	std r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3)
	168	std r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3)
	169	stdu r1,-128(r1)
a7e91561	170	cfi_adjust_cfa_offset (128)
5ef6ae4b UD	171	std r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3)
	172	std r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3)
	173	std r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3)
	174	std r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3)
	175	std r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3)
	176	std r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3)
	177	std r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3)
	178	std r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3)
	179	std r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3)
	180	std r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3)
	181	std r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3)
	182	std r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3)
	183	std r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3)
	184	std r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3)
	185	std r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3)
	186	std r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3)
	187	std r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3)
	188	std r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3)
	189	std r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3)
	190	std r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3)
	191	std r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3)
	192	std r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3)
	193	std r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3)
	194	std r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3)
	195	std r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3)
	196	std r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3)
	197	std r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3)
	198	std r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3)
	199	mfctr r0
	200	std r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3)
	201	mfxer r0
	202	std r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3)
	203	mfcr r0
	204	std r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r3)
afdca0f2 UD	205
afdca0f2 UD	206	/* Set the return value of swapcontext to "success". R3 is the only
5ef6ae4b UD	207	register whose value is not preserved in the saved context. */
	208	li r0,0
	209	std r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3)
afdca0f2	210
5ef6ae4b UD	211	/* Zero fill fields that can't be set in user state or are unused. */
	212	std r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3)
	213	std r0,(SIGCONTEXT_GP_REGS+(34*8))(r3)
	214	std r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3)
	215	std r0,(SIGCONTEXT_GP_REGS+(40*8))(r3)
	216	std r0,(SIGCONTEXT_GP_REGS+(41*8))(r3)
	217	std r0,(SIGCONTEXT_GP_REGS+(42*8))(r3)
	218	std r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3)
afdca0f2 UD	219
	220	/* Set the PT_REGS pointer to the address of sigcontext's gp_regs
	221	field. Struct pt_regs and elf_gregset_t are the same thing.
5ef6ae4b UD	222	We kept the regs field for backwards compatibility with
	223	libraries built before we extended sigcontext. */
	224	addi r0,r3,SIGCONTEXT_GP_REGS
	225	std r0,SIGCONTEXT_PT_REGS(r3)
afdca0f2	226
5ef6ae4b UD	227	stfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3)
	228	stfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3)
	229	stfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3)
	230	stfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3)
	231	stfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3)
	232	stfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3)
	233	stfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3)
	234	stfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3)
	235	stfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3)
	236	stfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3)
	237	stfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3)
	238	stfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3)
	239	stfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3)
	240	stfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3)
	241	stfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3)
	242	stfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3)
	243	stfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3)
	244	stfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3)
	245	stfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3)
	246	stfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3)
	247	stfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3)
	248	stfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3)
	249	stfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3)
	250	stfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3)
	251	stfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3)
	252	stfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3)
	253	stfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3)
	254	stfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3)
	255	stfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3)
b86d92c0	256	stfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r3)
5ef6ae4b UD	257	mffs fp0
	258	stfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3)
	259	stfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3)
	260	stfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3)
afdca0f2	261
5ef6ae4b	262	ld r5,.LC__dl_hwcap@toc(r2)
ef690add	263	# ifdef SHARED
5ef6ae4b	264	/* Load _rtld-global._dl_hwcap. */
ef690add UD	265	ld r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r5)
ef690add UD	266	# else
5ef6ae4b	267	ld r5,0(r5) /* Load extern _dl_hwcap. */
fb9d5c73	268	# endif
5ef6ae4b UD	269	la r10,(SIGCONTEXT_V_RESERVE+8)(r3)
5ef6ae4b UD	270	la r9,(SIGCONTEXT_V_RESERVE+24)(r3)
fb9d5c73	271
e1ad4c53	272	andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
fb9d5c73	273
5ef6ae4b	274	clrrdi r10,r10,4
e1ad4c53	275	beq L(has_no_vec)
5ef6ae4b	276	clrrdi r9,r9,4
e1ad4c53	277	mr r5,r10 /* Capture v_regs value in r5. /
fb9d5c73	278
afdca0f2	279	stvx v0,0,r10
5ef6ae4b UD	280	stvx v1,0,r9
	281	addi r10,r10,32
	282	addi r9,r9,32
afdca0f2 UD	283
afdca0f2 UD	284	stvx v2,0,r10
5ef6ae4b UD	285	stvx v3,0,r9
	286	addi r10,r10,32
	287	addi r9,r9,32
afdca0f2 UD	288
afdca0f2 UD	289	stvx v4,0,r10
5ef6ae4b UD	290	stvx v5,0,r9
	291	addi r10,r10,32
	292	addi r9,r9,32
afdca0f2 UD	293
afdca0f2 UD	294	stvx v6,0,r10
5ef6ae4b UD	295	stvx v7,0,r9
	296	addi r10,r10,32
	297	addi r9,r9,32
afdca0f2 UD	298
afdca0f2 UD	299	stvx v8,0,r10
5ef6ae4b UD	300	stvx v9,0,r9
	301	addi r10,r10,32
	302	addi r9,r9,32
afdca0f2 UD	303
afdca0f2 UD	304	stvx v10,0,r10
5ef6ae4b UD	305	stvx v11,0,r9
	306	addi r10,r10,32
	307	addi r9,r9,32
afdca0f2 UD	308
afdca0f2 UD	309	stvx v12,0,r10
5ef6ae4b UD	310	stvx v13,0,r9
	311	addi r10,r10,32
	312	addi r9,r9,32
afdca0f2 UD	313
afdca0f2 UD	314	stvx v14,0,r10
5ef6ae4b UD	315	stvx v15,0,r9
	316	addi r10,r10,32
	317	addi r9,r9,32
afdca0f2 UD	318
afdca0f2 UD	319	stvx v16,0,r10
5ef6ae4b UD	320	stvx v17,0,r9
	321	addi r10,r10,32
	322	addi r9,r9,32
afdca0f2 UD	323
afdca0f2 UD	324	stvx v18,0,r10
e1ad4c53 RM	325	stvx v19,0,r9
e1ad4c53 RM	326	addi r10,r10,32
5ef6ae4b	327	addi r9,r9,32
afdca0f2 UD	328
afdca0f2 UD	329	stvx v20,0,r10
5ef6ae4b UD	330	stvx v21,0,r9
	331	addi r10,r10,32
	332	addi r9,r9,32
afdca0f2 UD	333
afdca0f2 UD	334	stvx v22,0,r10
5ef6ae4b UD	335	stvx v23,0,r9
	336	addi r10,r10,32
	337	addi r9,r9,32
afdca0f2 UD	338
afdca0f2 UD	339	stvx v24,0,r10
5ef6ae4b UD	340	stvx v25,0,r9
	341	addi r10,r10,32
	342	addi r9,r9,32
afdca0f2 UD	343
afdca0f2 UD	344	stvx v26,0,r10
5ef6ae4b UD	345	stvx v27,0,r9
	346	addi r10,r10,32
	347	addi r9,r9,32
afdca0f2 UD	348
afdca0f2 UD	349	stvx v28,0,r10
5ef6ae4b UD	350	stvx v29,0,r9
	351	addi r10,r10,32
	352	addi r9,r9,32
afdca0f2 UD	353
afdca0f2 UD	354	stvx v30,0,r10
5ef6ae4b UD	355	stvx v31,0,r9
	356	addi r10,r10,32
	357	addi r9,r9,32
afdca0f2	358
5ef6ae4b UD	359	mfvscr v0
	360	mfspr r0,VRSAVE
	361	stvx v0,0,r10
	362	stw r0,0(9)
afdca0f2	363
5ef6ae4b	364	L(has_no_vec):
afdca0f2	365	/*
5ef6ae4b UD	366	Store either a NULL or a quadword aligned pointer to the Vector register
	367	array into *v_regs.
	368	*/
e1ad4c53	369	std r5,(SIGCONTEXT_V_REGS_PTR)(r3)
afdca0f2	370
609b4783 UD	371	addi r5,r3,UCONTEXT_SIGMASK
	372	li r4,0
	373	li r3,SIG_BLOCK
d980f41a	374	bl JUMPTARGET(__sigprocmask)
609b4783	375	nop
afdca0f2 UD	376
afdca0f2 UD	377	ld r0,128+FRAME_LR_SAVE(r1)
609b4783 UD	378	addi r1,r1,128
	379	mtlr r0
	380	blr
	381	PSEUDO_END(__getcontext)
	382
5ef6ae4b	383	versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)