Commit | Line | Data |
---|---|---|
bffbf940 JJ |
1 | /* Force .data aligned to 4K, so that .got very likely gets at |
2 | 0x5021a0 (0x60 bytes .tdata and 0x140 bytes .dynamic) */ | |
3 | .data | |
4 | .balign 4096 | |
5 | .section ".tdata", "awT", @progbits | |
6 | .globl sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8 | |
7 | .globl sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8 | |
8 | .hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8 | |
9 | sg1: .long 17 | |
10 | sg2: .long 18 | |
11 | sg3: .long 19 | |
12 | sg4: .long 20 | |
13 | sg5: .long 21 | |
14 | sg6: .long 22 | |
15 | sg7: .long 23 | |
16 | sg8: .long 24 | |
17 | sl1: .long 65 | |
18 | sl2: .long 66 | |
19 | sl3: .long 67 | |
20 | sl4: .long 68 | |
21 | sl5: .long 69 | |
22 | sl6: .long 70 | |
23 | sl7: .long 71 | |
24 | sl8: .long 72 | |
25 | sh1: .long 257 | |
26 | sh2: .long 258 | |
27 | sh3: .long 259 | |
28 | sh4: .long 260 | |
29 | sh5: .long 261 | |
30 | sh6: .long 262 | |
31 | sh7: .long 263 | |
32 | sh8: .long 264 | |
33 | /* Force .text aligned to 4K, so it very likely gets at 0x401000. */ | |
34 | .text | |
35 | .balign 4096 | |
36 | .globl fn2 | |
37 | .type fn2,@function | |
38 | fn2: | |
39 | pushq %rbp | |
40 | movq %rsp, %rbp | |
41 | ||
42 | /* GD -> IE because variable is not defined in executable */ | |
43 | .long 0x66666666 | |
44 | leaq sG1@tlsgd(%rip), %rdi | |
45 | call __tls_get_addr@plt | |
46 | nop;nop;nop;nop | |
47 | ||
48 | /* GD -> IE because variable is not defined in executable where | |
49 | the variable is referenced through IE too */ | |
50 | .long 0x66666666 | |
51 | leaq sG2@tlsgd(%rip), %rdi | |
52 | call __tls_get_addr@plt | |
53 | nop;nop;nop;nop | |
54 | ||
55 | /* GD -> LE with global variable defined in executable */ | |
56 | .long 0x66666666 | |
57 | leaq sg1@tlsgd(%rip), %rdi | |
58 | call __tls_get_addr@plt | |
59 | nop;nop;nop;nop | |
60 | ||
61 | /* GD -> LE with local variable defined in executable */ | |
62 | .long 0x66666666 | |
63 | leaq sl1@tlsgd(%rip), %rdi | |
64 | call __tls_get_addr@plt | |
65 | nop;nop;nop;nop | |
66 | ||
67 | /* GD -> LE with hidden variable defined in executable */ | |
68 | .long 0x66666666 | |
69 | leaq sh1@tlsgd(%rip), %rdi | |
70 | call __tls_get_addr@plt | |
71 | nop;nop;nop;nop | |
72 | ||
73 | /* LD */ | |
74 | leaq sl1@tlsld(%rip), %rdi | |
75 | call __tls_get_addr@plt | |
76 | nop;nop | |
77 | leaq 1+sl1@dtpoff(%rax), %rdx | |
78 | nop;nop | |
79 | leaq sl2@dtpoff+2(%rax), %r9 | |
80 | nop;nop;nop;nop | |
81 | ||
82 | /* LD against hidden variables */ | |
83 | leaq sh1@tlsld(%rip), %rdi | |
84 | call __tls_get_addr@plt | |
85 | nop;nop | |
86 | leaq sh1@dtpoff(%rax), %rdx | |
87 | nop;nop | |
88 | leaq 3+sh2@dtpoff(%rax), %rcx | |
89 | nop;nop;nop;nop | |
90 | ||
91 | /* IE against global var */ | |
92 | movq %fs:0, %r9 | |
93 | nop;nop | |
94 | addq sG2@gottpoff(%rip), %r9 | |
95 | nop;nop;nop;nop | |
96 | ||
97 | /* IE -> LE against global var defined in exec */ | |
98 | movq %fs:0, %r10 | |
99 | nop;nop | |
100 | addq sg1@gottpoff(%rip), %r10 | |
101 | nop;nop;nop;nop | |
102 | ||
103 | /* IE -> LE against local var */ | |
104 | movq %fs:0, %rax | |
105 | nop;nop | |
106 | addq sl1@gottpoff(%rip), %rax | |
107 | nop;nop;nop;nop | |
108 | ||
109 | /* IE -> LE against hidden var */ | |
110 | movq %fs:0, %rcx | |
111 | nop;nop | |
112 | addq sh1@gottpoff(%rip), %rcx | |
113 | nop;nop;nop;nop | |
114 | ||
115 | /* Direct access through %fs */ | |
116 | ||
117 | /* IE against global var */ | |
118 | movq sG5@gottpoff(%rip), %rcx | |
119 | nop;nop | |
120 | movq %fs:(%rcx), %rdx | |
121 | nop;nop;nop;nop | |
122 | ||
123 | /* IE->LE against local var */ | |
124 | movq sl5@gottpoff(%rip), %r11 | |
125 | nop;nop | |
126 | movq %fs:(%r11), %r12 | |
127 | nop;nop;nop;nop | |
128 | ||
129 | /* IE->LE against hidden var */ | |
130 | movq sh5@gottpoff(%rip), %rdx | |
131 | nop;nop | |
132 | movq %fs:(%rdx), %rdx | |
133 | nop;nop;nop;nop | |
134 | ||
135 | leave | |
136 | ret |