| ; |
| ; Port of uClibc for TMS320C6000 DSP architecture |
| ; Copyright (C) 2004 Texas Instruments Incorporated |
| ; Author of TMS320C6000 port: Aurelien Jacquiot |
| ; |
| ; This program is free software; you can redistribute it and/or modify it |
| ; under the terms of the GNU Library General Public License as published by |
| ; the Free Software Foundation; either version 2 of the License, or (at your |
| ; option) any later version. |
| ; |
| ; This program 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 Library General Public License |
| ; for more details. |
| ; |
| ; You should have received a copy of the GNU Library General Public License |
| ; along with this program; if not, write to the Free Software Foundation, |
| ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| ; |
| |
| .global setjmp |
| setjmp: |
| #if 0 |
| .if 1 /* was: .if (CONFIG_UCLIBC_SHARED == 0) */ |
| |
| MVKL .S1 ___curr_eh_stack_entry,A6 |
| || SUB .D1X A4,B15,A3 |
| MVKH .S1 ___curr_eh_stack_entry,A6 |
| || CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case |
| |
| LDW .D1T1 *A6,A2 |
| .else |
| MVKL .S2 (___curr_eh_stack_entry - $bss)/4,B6 |
| || SUB .D1X A4,B15,A3 |
| MVKH .S2 (___curr_eh_stack_entry - $bss)/4,B6 |
| || CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case |
| |
| LDW .D2T1 *+B14[B6],A2 |
| .endif |
| NOP |
| #else |
| MVK .S1 0, A0 |
| #endif |
| |
| MVK .L2 1,B4 ; indicate to ___sigjmp_save to save signal mask |
| || MV .D2X A4,B6 ; jmp_buf address |
| || STW .D1T2 B3,*+A4(48) ; return address |
| |
| ADDAW .D1 A2,2,A2 |
| [A0] CMPEQ .L1 A4,A2,A0 ; A0 set if C++ exceptions case |
| |
| STW .D1T1 A10,*+A4(0) |
| || STW .D2T2 B10,*+B6(4) |
| ||[!A0] B .S1 __sigjmp_save ; branch to ___sigjmp_save in 5 cycles |
| ||[A0] B .S2 B3 |
| |
| STW .D1T1 A11,*+A4(8) |
| || STW .D2T2 B11,*+B6(12) |
| STW .D1T1 A12,*+A4(16) |
| || STW .D2T2 B12,*+B6(20) |
| STW .D1T1 A13,*+A4(24) |
| || STW .D2T2 B13,*+B6(28) |
| STW .D1T1 A14,*+A4(32) |
| || STW .D2T2 B14,*+B6(36) |
| STW .D1T1 A15,*+A4(40) |
| || STW .D2T2 B15,*+B6(44) |
| ||[A0] ZERO .L1 A4 ; returns 0 for the C++ case |