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Revision 066e58dd3454554fed6dad53fd2513736087720d, 1.6 kB
(checked in by Rémi Denis-Courmont <rem@videolan.org>, 1 year ago)
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Create a modules-like directory for libraries
that are not plugins neither in the core
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- Property mode set to
100644
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.section .data |
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| 2 |
.globl caller_return |
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caller_return: |
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| 4 |
.long 0 |
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| 5 |
.globl report_entry |
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report_entry: |
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.long null_call |
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.globl report_ret |
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report_ret: |
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.long null_call |
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.global wrapper_target |
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wrapper_target: |
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.long null_call |
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.section .text |
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.globl null_call |
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.type null_call, @function |
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.balign 16,0x90 |
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null_call: |
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ret |
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.globl wrapper |
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.type wrapper, @function |
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.balign 16,0x90 |
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wrapper: |
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pusha # store registers (EAX, ECX, EDX, EBX, ESP, EBP, ESI, EDI) |
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pushf # store flags |
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push %ebp # set up a stack frame |
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movl %esp, %ebp |
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leal 4(%ebp), %eax # push flags addr |
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push %eax |
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leal 8(%ebp), %eax # push registers addr |
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push %eax |
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leal 40(%ebp), %edx |
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movl (%ebp), %eax |
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subl %edx, %eax |
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push %eax |
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push %edx |
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call *report_entry # report entry |
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test %eax, %eax |
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jnz .Ldone |
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leave # restore %esp, %ebp |
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popf # restore flags |
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popa # restore registers |
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popl caller_return # switch return addresses |
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pushl $.Lwrapper_return |
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jmp *wrapper_target # wrapper_target should return at .Lwrapper_return |
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.balign 16, 0x90 |
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.Lwrapper_return: |
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pushl caller_return # restore the original return address |
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pusha # more for reference sake here |
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pushf |
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push %ebp # set up a stack frame |
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movl %esp, %ebp |
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leal 4(%ebp), %eax # push flags addr |
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push %eax |
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leal 8(%ebp), %eax # push registers addr |
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push %eax |
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leal 40(%ebp), %edx # push stack top address (relative to our entry) |
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movl (%ebp), %eax |
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subl %edx, %eax # calculate difference between entry and previous frame |
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push %eax |
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push %edx |
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call *report_ret # report the return information (same args) |
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| 77 |
.Ldone: |
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leave |
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| 80 |
popf |
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| 81 |
popa |
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| 82 |
ret |
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| 83 |
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