29 lines
764 B
C
29 lines
764 B
C
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#include "stack.h"
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#include "vga.h"
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void printStackTrace(unsigned int maxFrames){
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#ifdef DEBUG
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// Now on Stack:
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// ( potential second function argument )
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// first function argument (maxFrames)
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// return address from caller
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// EBP (Extended Base Pointer) of calling function
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unsigned int * ebp = &maxFrames - 2;
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for (unsigned int frame = 0 ; frame < maxFrames; frame ++){
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unsigned int eip = ebp [1];
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if (eip == 0){
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// No caller on stack
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break;
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}
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ebp = (unsigned int *)(ebp[0]);
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//unsigned int * arguments = &ebp[2];
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printf(" 0x%x\n", eip);
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}
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#else
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printf("Must be compiled with -fno-omit-frame-pointer for full stack\n");
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unsigned int * ebp = &maxFrames - 2;
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unsigned int eip = ebp [1];
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printf("Caller: 0x%x\n", eip);
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#endif
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}
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