what is meaning of .prologue in a smali file?

android, smali

Solution

This is equivalent to the `DBG_SET_PROLOGUE_END` debug opcode in the dex file, as documented here.

sets the prologue_end state machine register, indicating that the next position entry that is added should be considered the end of a method prologue (an appropriate place for a method breakpoint). The prologue_end register is cleared by any special (>= 0x0a) opcode.

Problem

I diassembled a simple android app using apktool and it generated some smali codes.other things are understandable but i am not getting the meaning of .prologue in the smali code.please help me Here other variables are self understanding linke invoke and locals but what does this .prologue do?? ``` # direct methods .method public constructor <init>()V .locals 0 .prologue # What does this do? .line 17 invoke-direct {p0}, Landroid/app/Activity;-><init>()V return-void .end method ```

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