2 Copyright Oliver Kowalke 2009.
3 Distributed under the Boost Software License, Version 1.0.
4 (See accompanying file LICENSE_1_0.txt or copy at
5 http://www.boost.org/LICENSE_1_0.txt)
8 /*******************************************************
10 * ------------------------------------------------- *
11 * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
12 * ------------------------------------------------- *
13 * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
14 * ------------------------------------------------- *
15 * | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | *
16 * ------------------------------------------------- *
17 * ------------------------------------------------- *
18 * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
19 * ------------------------------------------------- *
20 * | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
21 * ------------------------------------------------- *
22 * | s24 | s25 | s26 | s27 | s28 | s29 | s30 | s31 | *
23 * ------------------------------------------------- *
24 * ------------------------------------------------- *
25 * | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
26 * ------------------------------------------------- *
27 * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
28 * ------------------------------------------------- *
29 * | sjlj|hiddn| v1 | v2 | v3 | v4 | v5 | v6 | *
30 * ------------------------------------------------- *
31 * ------------------------------------------------- *
32 * | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
33 * ------------------------------------------------- *
34 * | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
35 * ------------------------------------------------- *
36 * | v7 | v8 | lr | pc | FCTX| DATA| | *
37 * ------------------------------------------------- *
39 *******************************************************/
47 @ save hidden,V1-V8,LR
50 @ locate TLS to save/restore SjLj handler
51 mrc p15, 0, v2, c13, c0, #3
54 @ load TLS[__PTK_LIBC_DYLD_Unwind_SjLj_Key]
59 @ prepare stack for FPU
61 #if (defined(__VFP_FP__) && !defined(__SOFTFP__))
66 @ store RSP (pointing to context-data) in A1
69 @ restore RSP (pointing to context-data) from A2
72 #if (defined(__VFP_FP__) && !defined(__SOFTFP__))
76 @ prepare stack for FPU
79 @ r#estore SjLj handler
81 @ store SjLj handler in TLS
84 @ restore hidden,V1-V8,LR
87 @ return transfer_t from jump
90 @ pass transfer_t as first arg in context function
91 @ A1 == FCTX, A2 == DATA