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/* PowerPC64 support code for fibers and multithreading.
Copyright (C) 2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC 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 General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "../common/threadasm.S"
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define USE_ABI_2
#define LINKAGE_SZ 32
#define LR_OFS 16
#define TOC_OFS 24
#define GPR_OFS 32
#define STACK_SZ (LINKAGE_SZ + 26*8)
#define OFS_R3_R10 GPR_OFS
#define OFS_R14_R31 (GPR_OFS+8*8)
#else
#define LINKAGE_SZ 48
#define LR_OFS 16
#define TOC_OFS 40
#define GPR_OFS 112
#define STACK_SZ (LINKAGE_SZ + 8*8 + 18*8)
#define OFS_R3_R10 (STACK_SZ+LINKAGE_SZ)
#define OFS_R14_R31 GPR_OFS
#endif
.text
#if defined( USE_ABI_2 )
.abiversion 2
#endif
.globl _D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.align 2
.type _D4core6thread18callWithStackShellFNbMDFNbPvZvZv,@function
#if defined( USE_ABI_2 )
.section .text._D4core6thread18callWithStackShellFNbMDFNbPvZvZv,"a",@progbits
#else
.section .opd,"aw",@progbits
#endif
_D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
#if !defined( USE_ABI_2 )
.align 3
.quad .L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.quad .TOC.@tocbase
.quad 0
#endif
.text
/*
* Called with:
* r3: pointer context
* r4: pointer to function
*/
.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
.cfi_startproc
stdu 1, -STACK_SZ(1)
mflr 0
std 0, LR_OFS(1)
.cfi_def_cfa_offset 256
.cfi_offset lr, 16
/* Save r14-r31 in general register save area */
std 14, (OFS_R14_R31 + 0 * 8)(1)
std 15, (OFS_R14_R31 + 1 * 8)(1)
std 16, (OFS_R14_R31 + 2 * 8)(1)
std 17, (OFS_R14_R31 + 3 * 8)(1)
std 18, (OFS_R14_R31 + 4 * 8)(1)
std 19, (OFS_R14_R31 + 5 * 8)(1)
std 20, (OFS_R14_R31 + 6 * 8)(1)
std 21, (OFS_R14_R31 + 7 * 8)(1)
std 22, (OFS_R14_R31 + 8 * 8)(1)
std 23, (OFS_R14_R31 + 9 * 8)(1)
std 24, (OFS_R14_R31 + 10 * 8)(1)
std 25, (OFS_R14_R31 + 11 * 8)(1)
std 26, (OFS_R14_R31 + 12 * 8)(1)
std 27, (OFS_R14_R31 + 13 * 8)(1)
std 28, (OFS_R14_R31 + 14 * 8)(1)
std 29, (OFS_R14_R31 + 15 * 8)(1)
std 30, (OFS_R14_R31 + 16 * 8)(1)
std 31, (OFS_R14_R31 + 17 * 8)(1)
/* Save r3-r10 in parameter save area of caller */
std 3, (OFS_R3_R10 + 0 * 8)(1)
std 4, (OFS_R3_R10 + 1 * 8)(1)
std 5, (OFS_R3_R10 + 2 * 8)(1)
std 6, (OFS_R3_R10 + 3 * 8)(1)
std 7, (OFS_R3_R10 + 4 * 8)(1)
std 8, (OFS_R3_R10 + 5 * 8)(1)
std 9, (OFS_R3_R10 + 6 * 8)(1)
std 10, (OFS_R3_R10 + 7 * 8)(1)
/* Save r2 in TOC save area */
std 2, TOC_OFS(1)
/* Do not save r11, r12 and r13. */
/* Call delegate:
* r3: pointer to context
* r4: pointer to stack
*/
mr 5, 4
mr 4, 1
ld 6, 0(5)
ld 11, 16(5)
ld 2, 8(5)
mtctr 6
bctrl
nop
/* Restore r2 from TOC save area */
ld 2, TOC_OFS(1)
/* Restore r3-r10 from local variable space */
ld 3, (OFS_R3_R10 + 0 * 8)(1)
ld 4, (OFS_R3_R10 + 1 * 8)(1)
ld 5, (OFS_R3_R10 + 2 * 8)(1)
ld 6, (OFS_R3_R10 + 3 * 8)(1)
ld 7, (OFS_R3_R10 + 4 * 8)(1)
ld 8, (OFS_R3_R10 + 5 * 8)(1)
ld 9, (OFS_R3_R10 + 6 * 8)(1)
ld 10, (OFS_R3_R10 + 7 * 8)(1)
/* Restore r14-r31 from general register save area */
ld 14, (OFS_R14_R31 + 0 * 8)(1)
ld 15, (OFS_R14_R31 + 1 * 8)(1)
ld 16, (OFS_R14_R31 + 2 * 8)(1)
ld 17, (OFS_R14_R31 + 3 * 8)(1)
ld 18, (OFS_R14_R31 + 4 * 8)(1)
ld 19, (OFS_R14_R31 + 5 * 8)(1)
ld 20, (OFS_R14_R31 + 6 * 8)(1)
ld 21, (OFS_R14_R31 + 7 * 8)(1)
ld 22, (OFS_R14_R31 + 8 * 8)(1)
ld 23, (OFS_R14_R31 + 9 * 8)(1)
ld 24, (OFS_R14_R31 + 10 * 8)(1)
ld 25, (OFS_R14_R31 + 11 * 8)(1)
ld 26, (OFS_R14_R31 + 12 * 8)(1)
ld 27, (OFS_R14_R31 + 13 * 8)(1)
ld 28, (OFS_R14_R31 + 14 * 8)(1)
ld 29, (OFS_R14_R31 + 15 * 8)(1)
ld 30, (OFS_R14_R31 + 16 * 8)(1)
ld 31, (OFS_R14_R31 + 17 * 8)(1)
ld 0, LR_OFS(1)
mtlr 0
addi 1, 1, STACK_SZ
blr
.long 0
.quad 0
.Lend:
.size _D4core6thread18callWithStackShellFNbMDFNbPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
.cfi_endproc
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