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a945c346 | 1 | /* Copyright (C) 2013-2024 Free Software Foundation, Inc. |
aaec3fc8 AK |
2 | Contributed by Andreas Krebbel <krebbel@linux.vnet.ibm.com> |
3 | ||
4 | This file is part of the GNU Transactional Memory Library (libitm). | |
5 | ||
6 | Libitm is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | Libitm is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
13 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | more details. | |
15 | ||
16 | Under Section 7 of GPL version 3, you are granted additional | |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
24 | ||
25 | ||
26 | #include "asmcfi.h" | |
27 | ||
28 | .text | |
29 | .align 4 | |
30 | .globl _ITM_beginTransaction | |
31 | .type _ITM_beginTransaction, @function | |
32 | ||
33 | /* _ITM_beginTransaction (int props); props -> r2 */ | |
34 | _ITM_beginTransaction: | |
35 | cfi_startproc | |
36 | #ifdef __s390x__ | |
37 | lgr %r3,%r15 /* backup stack pointer */ | |
38 | aghi %r15,-304 /* jump buffer (144) + reg save area (160) */ | |
39 | cfi_adjust_cfa_offset(304) | |
40 | stmg %r6,%r14,160(%r15) | |
41 | stg %r3,72+160(%r15) /* store the old stack pointer */ | |
42 | std %f8,80+160(%r15) | |
43 | std %f9,88+160(%r15) | |
44 | std %f10,96+160(%r15) | |
45 | std %f11,104+160(%r15) | |
46 | std %f12,112+160(%r15) | |
47 | std %f13,120+160(%r15) | |
48 | std %f14,128+160(%r15) | |
49 | std %f15,136+160(%r15) | |
50 | la %r3,160(%r15) /* second argument to GTM_begin_transaction */ | |
51 | brasl %r14,GTM_begin_transaction | |
52 | lg %r1,64+160(%r15) | |
53 | aghi %r15,304 | |
54 | cfi_adjust_cfa_offset(-304) | |
55 | br %r1 | |
56 | #else | |
57 | lr %r3,%r15 /* backup stack pointer */ | |
58 | ahi %r15,-152 /* jump buffer (56) + reg save area (96) */ | |
59 | cfi_adjust_cfa_offset(152) | |
60 | stm %r6,%r14,96(%r15) | |
61 | st %r3,36+96(%r15) /* store the old stack pointer */ | |
62 | std %f4,40+96(%r15) | |
63 | std %f6,48+96(%r15) | |
64 | la %r3,96(%r15) /* second argument to GTM_begin_transaction */ | |
65 | /* begin_transaction (uint32_t prop, const gtm_jmpbuf *jb) */ | |
66 | brasl %r14,GTM_begin_transaction /* requires mzarch */ | |
67 | l %r1,32+96(%r15) | |
68 | ahi %r15,152 | |
69 | cfi_adjust_cfa_offset(-152) | |
70 | br %r1 | |
71 | #endif | |
72 | cfi_endproc | |
73 | ||
74 | .size _ITM_beginTransaction, .-_ITM_beginTransaction | |
75 | ||
76 | .align 4 | |
77 | .globl GTM_longjmp | |
78 | .type GTM_longjmp, @function | |
79 | .hidden GTM_longjmp | |
80 | ||
81 | /* uint32_t GTM_longjmp (uint32_t, const gtm_jmpbuf *, uint32_t) */ | |
82 | GTM_longjmp: | |
83 | /* First parameter becomes the return value of | |
84 | _ITM_beginTransaction (r2). | |
85 | Third parameter is ignored for now. */ | |
86 | cfi_startproc | |
87 | #ifdef __s390x__ | |
88 | ld %f8,80(%r3) | |
89 | ld %f9,88(%r3) | |
90 | ld %f10,96(%r3) | |
91 | ld %f11,104(%r3) | |
92 | ld %f12,112(%r3) | |
93 | ld %f13,120(%r3) | |
94 | ld %f14,128(%r3) | |
95 | ld %f15,136(%r3) | |
96 | lmg %r6,%r15,0(%r3) | |
97 | br %r14 | |
98 | #else | |
99 | ld %f4,40(%r3) | |
100 | ld %f6,48(%r3) | |
101 | lm %r6,%r15,0(%r3) | |
102 | br %r14 | |
103 | #endif | |
104 | cfi_endproc | |
105 | ||
106 | .size GTM_longjmp, .-GTM_longjmp | |
107 | ||
108 | .section .note.GNU-stack, "", @progbits |