1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2004 Hewlett-Packard Co 3 Contributed by David Mosberger-Tang <davidm (at) 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 /* The setcontext() in glibc is a no-op (as of 4 Dec 2004), so we have 27 to implement something useful on our own here. */ 28 29 #define FILL(n) ldw (LINUX_UC_MCONTEXT_OFF+LINUX_SC_GR_OFF+4*(n))(%r26),%r##n 30 31 #include "offsets.h" 32 33 .align 4 34 .global _Uhppa_setcontext 35 .protected _Uhppa_setcontext 36 .proc 37 .callinfo 38 _Uhppa_setcontext: 39 FILL (2) /* return-pointer */ 40 FILL (3) /* frame pointer */ 41 FILL (4) /* 2nd-ary frame pointer */ 42 FILL (5) /* preserved register */ 43 FILL (6) /* preserved register */ 44 FILL (7) /* preserved register */ 45 FILL (8) /* preserved register */ 46 FILL (9) /* preserved register */ 47 FILL (10) /* preserved register */ 48 FILL (11) /* preserved register */ 49 FILL (12) /* preserved register */ 50 FILL (13) /* preserved register */ 51 FILL (14) /* preserved register */ 52 FILL (15) /* preserved register */ 53 FILL (16) /* preserved register */ 54 FILL (17) /* preserved register */ 55 FILL (18) /* preserved register */ 56 FILL (19) /* linkage-table register */ 57 FILL (27) /* global-data pointer */ 58 FILL (30) /* stack pointer */ 59 60 ldo (LINUX_UC_MCONTEXT_OFF+LINUX_SC_FR_OFF)(%r26), %r29 61 fldds,ma 8(%r29), %fr12 62 fldds,ma 8(%r29), %fr13 63 fldds,ma 8(%r29), %fr14 64 fldds,ma 8(%r29), %fr15 65 fldds,ma 8(%r29), %fr16 66 fldds,ma 8(%r29), %fr17 67 fldds,ma 8(%r29), %fr18 68 fldds,ma 8(%r29), %fr19 69 fldds,ma 8(%r29), %fr20 70 fldds 8(%r29), %fr21 71 72 bv,n %r0(%rp) 73 .procend 74 #ifdef __linux__ 75 /* We do not need executable stack. */ 76 .section .note.GNU-stack,"",@progbits 77 #endif 78
