mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-27 14:50:23 +00:00
168 lines
3.7 KiB
ArmAsm
168 lines
3.7 KiB
ArmAsm
/* Force .got aligned to 4K, so it very likely gets at 0x804a100
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(0x60 bytes .tdata and 0xa0 bytes .dynamic) */
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.section ".tdata", "awT", @progbits
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.balign 4096
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.globl sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8
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.globl sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
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.hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
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sg1: .long 17
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sg2: .long 18
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sg3: .long 19
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sg4: .long 20
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sg5: .long 21
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sg6: .long 22
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sg7: .long 23
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sg8: .long 24
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sl1: .long 65
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sl2: .long 66
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sl3: .long 67
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sl4: .long 68
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sl5: .long 69
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sl6: .long 70
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sl7: .long 71
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sl8: .long 72
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sh1: .long 257
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sh2: .long 258
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sh3: .long 259
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sh4: .long 260
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sh5: .long 261
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sh6: .long 262
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sh7: .long 263
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sh8: .long 264
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/* Force .text aligned to 4K, so it very likely gets at 0x8049000. */
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.text
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.balign 4096
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.globl fn2
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.type fn2,@function
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fn2:
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pushl %ebp
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movl %esp, %ebp
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pushl %ebx
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pushl %eax
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call 1f
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1: popl %ebx
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addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
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nop;nop;nop;nop
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/* GD -> IE because variable is not defined in executable */
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leal sG1@tlsdesc(%ebx), %eax
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call *sG1@tlscall(%eax)
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nop;nop;nop;nop
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/* GD -> IE because variable is not defined in executable where
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the variable is referenced through @gottpoff too */
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leal sG2@tlsdesc(%ebx), %eax
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call *sG2@tlscall(%eax)
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nop;nop;nop;nop
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/* GD -> IE because variable is not defined in executable where
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the variable is referenced through @gotntpoff too */
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leal sG3@tlsdesc(%ebx), %eax
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call *sG3@tlscall(%eax)
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nop;nop;nop;nop
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/* GD -> IE because variable is not defined in executable where
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the variable is referenced through @gottpoff and @gotntpoff too */
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leal sG4@tlsdesc(%ebx), %eax
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call *sG4@tlscall(%eax)
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nop;nop;nop;nop
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/* GD -> LE with global variable defined in executable */
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leal sg1@tlsdesc(%ebx), %eax
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call *sg1@tlscall(%eax)
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nop;nop;nop;nop
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/* GD -> LE with local variable defined in executable */
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leal sl1@tlsdesc(%ebx), %eax
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call *sl1@tlscall(%eax)
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nop;nop;nop;nop
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/* GD -> LE with hidden variable defined in executable */
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leal sh1@tlsdesc(%ebx), %eax
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call *sh1@tlscall(%eax)
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nop;nop;nop;nop
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/* LD -> LE */
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leal _TLS_MODULE_BASE_@tlsdesc(%ebx), %eax
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call *_TLS_MODULE_BASE_@tlscall(%eax)
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nop;nop
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leal sl1@dtpoff(%eax), %edx
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nop;nop
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leal sl2@dtpoff(%eax), %ecx
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nop;nop;nop;nop
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/* LD -> LE against hidden variables */
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leal _TLS_MODULE_BASE_@tlsdesc(%ebx), %eax
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call *_TLS_MODULE_BASE_@tlscall(%eax)
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nop;nop
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leal sh1@dtpoff(%eax), %edx
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nop;nop
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leal sh2@dtpoff(%eax), %ecx
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nop;nop;nop;nop
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/* @gottpoff IE against global var */
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movl %gs:0, %ecx
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nop;nop
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subl sG2@gottpoff(%ebx), %ecx
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nop;nop;nop;nop
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/* @gottpoff IE against global var */
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movl %gs:0, %eax
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nop;nop
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subl sG4@gottpoff(%ebx), %eax
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nop;nop;nop;nop
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/* @gotntpoff IE against global var */
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movl %gs:0, %ecx
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nop;nop
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addl sG3@gotntpoff(%ebx), %ecx
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nop;nop;nop;nop
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/* @gotntpoff IE against global var */
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movl %gs:0, %eax
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nop;nop
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addl sG4@gotntpoff(%ebx), %eax
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nop;nop;nop;nop
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/* @gottpoff IE -> LE against global var defined in exec */
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movl %gs:0, %ecx
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nop;nop
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subl sg1@gottpoff(%ebx), %ecx
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nop;nop;nop;nop
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/* @gotntpoff IE -> LE against local var */
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movl %gs:0, %ecx
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nop;nop
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addl sl1@gotntpoff(%ebx), %eax
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nop;nop;nop;nop
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/* @gottpoff IE -> LE against hidden var */
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movl %gs:0, %ecx
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nop;nop
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subl sh1@gottpoff(%ebx), %ecx
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nop;nop;nop;nop
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/* Direct access through %gs */
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/* @gotntpoff IE against global var */
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movl sG5@gotntpoff(%ebx), %ecx
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nop;nop
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movl %gs:(%ecx), %edx
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nop;nop;nop;nop
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/* @gotntpoff IE->LE against local var */
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movl sl5@gotntpoff(%ebx), %eax
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nop;nop
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movl %gs:(%eax), %edx
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nop;nop;nop;nop
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/* @gotntpoff IE->LE against hidden var */
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movl sh5@gotntpoff(%ebx), %edx
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nop;nop
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movl %gs:(%edx), %edx
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nop;nop;nop;nop
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movl -4(%ebp), %ebx
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leave
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ret
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