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Instructions for test_function

Text Segment. Source Code. void test_function ( int a) { int flag = a*a; } int main( ) { int num = 8; test_function ( num ); }. Instructions for test_function. gcc , gdb. Instructions for main. ~. ~. Text Segment. Source Code. void test_function ( int a) {

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Instructions for test_function

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  1. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } Instructions for test_function gcc, gdb Instructions for main ~ ~

  2. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } Instructions for test_function Instructions for main eip ~ ~ ~ ~ Stack Registers esp Stack frame for main ebp

  3. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } Instructions for test_function Instructions for main eip ~ ~ ~ ~ Stack Registers esp Stack frame for main ebp

  4. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } Instructions for test_function Instructions for main eip Note: this is the address we want to return to after the function call (i.e. the return address) ~ ~ ~ ~ Stack Registers esp Stack frame for main ebp

  5. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } eip Instructions for test_function Instructions for main ~ ~ ~ ~ Stack Stack frame for test_function Registers Stack frame for main esp ebp

  6. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } eip Instructions for test_function Instructions for main ~ ~ ~ ~ Stack Stack frame for test_function Registers Stack frame for main esp ebp

  7. Text Segment Source Code void test_function(int a) { int flag = a*a; } int main( ) { intnum = 8; test_function(num); } eip Instructions for test_function Instructions for main ~ ~ ~ ~ Stack Registers esp Stack frame for main ebp

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