| /* Copyright (C) 2001-2021 Free Software Foundation, Inc. |
| Contributed by Hans-Peter Nilsson <hp@bitrange.com> |
| |
| This file 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. |
| |
| This file 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/>. */ |
| |
| % This must be the last file on the link-line, allocating global registers |
| % from the top. |
| |
| % Register $254 is the stack-pointer. |
| sp GREG |
| |
| % Register $253 is frame-pointer. It's not supposed to be used in most |
| % functions. |
| fp GREG |
| |
| % $252 is the static chain register; nested functions receive the |
| % context of the surrounding function through a pointer passed in this |
| % register. |
| static_chain GREG |
| struct_value_reg GREG |
| |
| % These registers are used to pass state at an exceptional return (C++). |
| eh_state_3 GREG |
| eh_state_2 GREG |
| eh_state_1 GREG |
| eh_state_0 GREG |
| |
| #ifdef __MMIX_ABI_GNU__ |
| |
| % Allocate global registers used by the GNU ABI. |
| gnu_parm_reg_16 GREG |
| gnu_parm_reg_15 GREG |
| gnu_parm_reg_14 GREG |
| gnu_parm_reg_13 GREG |
| gnu_parm_reg_12 GREG |
| gnu_parm_reg_11 GREG |
| gnu_parm_reg_10 GREG |
| gnu_parm_reg_9 GREG |
| gnu_parm_reg_8 GREG |
| gnu_parm_reg_7 GREG |
| gnu_parm_reg_6 GREG |
| gnu_parm_reg_5 GREG |
| gnu_parm_reg_4 GREG |
| gnu_parm_reg_3 GREG |
| gnu_parm_reg_2 GREG |
| gnu_parm_reg_1 GREG |
| |
| #endif /* __MMIX_ABI_GNU__ */ |
| |
| % Provide last part of _init and _fini. |
| |
| % The return address is stored in the topmost stored register in the |
| % register-stack. We ignore the current value in rJ. It is probably |
| % garbage because each fragment of _init and _fini may have their own idea |
| % of the current stack frame, if they're cut out from a "real" function |
| % like in gcc/crtstuff.c. |
| |
| .section .init,"ax",@progbits |
| GETA $255,0F |
| PUT rJ,$255 |
| POP 0,0 |
| 0H PUT rJ,$0 |
| POP 0,0 |
| |
| .section .fini,"ax",@progbits |
| GETA $255,0F |
| PUT rJ,$255 |
| POP 0,0 |
| 0H PUT rJ,$0 |
| POP 0,0 |
