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0a35513e AH |
1 | /* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc. |
2 | Contributed by Richard Henderson <rth@redhat.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 | ||
4bdd090f RH |
25 | |
26 | #include "asmcfi.h" | |
27 | ||
0b41ebef IS |
28 | #define CONCAT1(a, b) CONCAT2(a, b) |
29 | #define CONCAT2(a, b) a ## b | |
30 | ||
31 | #ifdef __USER_LABEL_PREFIX__ | |
32 | # define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) | |
33 | #else | |
34 | # define SYM(x) x | |
35 | #endif | |
36 | ||
37 | #ifdef __ELF__ | |
38 | # define TYPE(x) .type SYM(x), @function | |
39 | # define SIZE(x) .size SYM(x), . - SYM(x) | |
40 | # ifdef HAVE_ATTRIBUTE_VISIBILITY | |
41 | # define HIDDEN(x) .hidden SYM(x) | |
42 | # else | |
43 | # define HIDDEN(x) | |
44 | # endif | |
45 | #else | |
46 | # define TYPE(x) | |
47 | # define SIZE(x) | |
48 | # ifdef __MACH__ | |
49 | # define HIDDEN(x) .private_extern SYM(x) | |
50 | # else | |
51 | # define HIDDEN(x) | |
52 | # endif | |
53 | #endif | |
54 | ||
0a35513e | 55 | .text |
9bdc6343 RH |
56 | |
57 | .align 4 | |
0b41ebef | 58 | .globl SYM(_ITM_beginTransaction) |
0a35513e | 59 | |
0b41ebef | 60 | SYM(_ITM_beginTransaction): |
4bdd090f | 61 | cfi_startproc |
0a35513e AH |
62 | #ifdef __x86_64__ |
63 | leaq 8(%rsp), %rax | |
9848887a UB |
64 | subq $56, %rsp |
65 | cfi_def_cfa_offset(64) | |
0a35513e | 66 | movq %rax, (%rsp) |
9848887a UB |
67 | movq %rbx, 8(%rsp) |
68 | movq %rbp, 16(%rsp) | |
69 | movq %r12, 24(%rsp) | |
70 | movq %r13, 32(%rsp) | |
71 | movq %r14, 40(%rsp) | |
72 | movq %r15, 48(%rsp) | |
0a35513e | 73 | movq %rsp, %rsi |
0b41ebef | 74 | call SYM(GTM_begin_transaction) |
9848887a | 75 | addq $56, %rsp |
4bdd090f | 76 | cfi_def_cfa_offset(8) |
0a35513e AH |
77 | ret |
78 | #else | |
79 | leal 4(%esp), %ecx | |
5752c591 | 80 | movl 4(%esp), %eax |
0a35513e | 81 | subl $28, %esp |
4bdd090f | 82 | cfi_def_cfa_offset(32) |
0a35513e AH |
83 | movl %ecx, 8(%esp) |
84 | movl %ebx, 12(%esp) | |
85 | movl %esi, 16(%esp) | |
86 | movl %edi, 20(%esp) | |
87 | movl %ebp, 24(%esp) | |
88 | leal 8(%esp), %edx | |
59659b59 | 89 | #if defined HAVE_ATTRIBUTE_VISIBILITY || !defined __PIC__ |
0b41ebef | 90 | call SYM(GTM_begin_transaction) |
59659b59 RO |
91 | #elif defined __ELF__ |
92 | call 1f | |
93 | 1: popl %ebx | |
94 | addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx | |
0b41ebef | 95 | call SYM(GTM_begin_transaction)@PLT |
59659b59 RO |
96 | movl 12(%esp), %ebx |
97 | #else | |
98 | # error "Unsupported PIC sequence" | |
99 | #endif | |
0a35513e | 100 | addl $28, %esp |
4bdd090f | 101 | cfi_def_cfa_offset(4) |
0a35513e AH |
102 | ret |
103 | #endif | |
4bdd090f | 104 | cfi_endproc |
9bdc6343 | 105 | |
0b41ebef IS |
106 | TYPE(_ITM_beginTransaction) |
107 | SIZE(_ITM_beginTransaction) | |
0a35513e | 108 | |
9bdc6343 | 109 | .align 4 |
0b41ebef | 110 | .globl SYM(GTM_longjmp) |
0a35513e | 111 | |
0b41ebef | 112 | SYM(GTM_longjmp): |
4bdd090f | 113 | cfi_startproc |
0a35513e | 114 | #ifdef __x86_64__ |
062f93f2 | 115 | movq (%rsi), %rcx |
9848887a UB |
116 | movq 8(%rsi), %rbx |
117 | movq 16(%rsi), %rbp | |
118 | movq 24(%rsi), %r12 | |
119 | movq 32(%rsi), %r13 | |
120 | movq 40(%rsi), %r14 | |
121 | movq 48(%rsi), %r15 | |
062f93f2 | 122 | movl %edi, %eax |
d4a698d4 | 123 | cfi_offset(%rip, 56) |
4bdd090f | 124 | cfi_def_cfa(%rcx, 0) |
0a35513e | 125 | movq %rcx, %rsp |
d4a698d4 | 126 | jmp *56(%rsi) |
0a35513e | 127 | #else |
0a35513e AH |
128 | movl (%edx), %ecx |
129 | movl 4(%edx), %ebx | |
130 | movl 8(%edx), %esi | |
131 | movl 12(%edx), %edi | |
132 | movl 16(%edx), %ebp | |
d4a698d4 | 133 | cfi_offset(%eip, 20) |
4bdd090f | 134 | cfi_def_cfa(%ecx, 0) |
0a35513e | 135 | movl %ecx, %esp |
d4a698d4 | 136 | jmp *20(%edx) |
0a35513e | 137 | #endif |
4bdd090f | 138 | cfi_endproc |
9bdc6343 | 139 | |
0b41ebef IS |
140 | TYPE(GTM_longjmp) |
141 | HIDDEN(GTM_longjmp) | |
142 | SIZE(GTM_longjmp) | |
0a35513e | 143 | |
9bdc6343 | 144 | #ifdef __linux__ |
0a35513e | 145 | .section .note.GNU-stack, "", @progbits |
9bdc6343 | 146 | #endif |