| mostang.com!davidm | 05a9101 | 2004-02-14 07:53:31 +0000 | [diff] [blame^] | 1 | /* libunwind - a platform-independent unwind library |
| 2 | Copyright (C) 2004 Hewlett-Packard Co |
| 3 | Contributed by David Mosberger-Tang <davidm@hpl.hp.com> |
| 4 | |
| 5 | This file is part of libunwind. |
| 6 | |
| 7 | Permission is hereby granted, free of charge, to any person obtaining |
| 8 | a copy of this software and associated documentation files (the |
| 9 | "Software"), to deal in the Software without restriction, including |
| 10 | without limitation the rights to use, copy, modify, merge, publish, |
| 11 | distribute, sublicense, and/or sell copies of the Software, and to |
| 12 | permit persons to whom the Software is furnished to do so, subject to |
| 13 | the following conditions: |
| 14 | |
| 15 | The above copyright notice and this permission notice shall be |
| 16 | included in all copies or substantial portions of the Software. |
| 17 | |
| 18 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 19 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 20 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 21 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| 22 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| 23 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 24 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| 25 | |
| 26 | .text |
| 27 | |
| 28 | .global save_static_to_stacked |
| 29 | .proc save_static_to_stacked |
| 30 | save_static_to_stacked: |
| 31 | .prologue |
| 32 | .regstk 2, 7, 2, 0 |
| 33 | .save ar.pfs, loc0 |
| 34 | alloc loc0 = ar.pfs, 2, 7, 2, 0 |
| 35 | .save rp, loc1 |
| 36 | mov loc1 = rp |
| 37 | .spillreg r4, loc2 |
| 38 | mov loc2 = r4 |
| 39 | .spillreg r5, loc3 |
| 40 | mov loc3 = r5 |
| 41 | .spillreg r6, loc4 |
| 42 | mov loc4 = r6 |
| 43 | .spillreg r7, loc5 |
| 44 | mov loc5 = r7 |
| 45 | .body |
| 46 | ld8 r4 = [in1], 8;; |
| 47 | ld8 r5 = [in1], 8;; |
| 48 | ld8 r6 = [in1], 8;; |
| 49 | ld8 r7 = [in1], 8;; |
| 50 | tbit.nz p6, p0 = r4, 0 |
| 51 | tbit.nz p7, p0 = r5, 0 |
| 52 | tbit.nz p8, p0 = r6, 0 |
| 53 | tbit.nz p9, p0 = r7, 0;; |
| 54 | (p6) ld8.s r4 = [r0] |
| 55 | (p7) ld8.s r5 = [r0] |
| 56 | (p8) ld8.s r6 = [r0] |
| 57 | (p9) ld8.s r7 = [r0] |
| 58 | |
| 59 | ld8 r2 = [in0], 8 // read the next function pointer |
| 60 | ;; |
| 61 | ld8 r3 = [r2], 8 // read the function's entry-point |
| 62 | ;; |
| 63 | ld8 r2 = [r2] // read the function's gp |
| 64 | ;; |
| 65 | mov b6 = r3 |
| 66 | mov loc6 = gp |
| 67 | mov out0 = in0 |
| 68 | mov out1 = in1 |
| 69 | mov gp = r2 |
| 70 | br.call.sptk.many rp = b6;; |
| 71 | mov gp = loc6 |
| 72 | |
| 73 | mov r4 = loc2 |
| 74 | mov r5 = loc3 |
| 75 | mov r6 = loc4 |
| 76 | mov r7 = loc5 |
| 77 | |
| 78 | mov ar.pfs = loc0 |
| 79 | mov rp = loc1 |
| 80 | br.ret.sptk.many rp |
| 81 | .endp save_static_to_stacked |