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I am currently having to write implementations of malloc() and free(), and am given a driver program that will run my two implementations.
But currently, I am segfaulting because free() is trying to free a payload size that is well in the billions of bytes (which is wrong). I have the line and line number from running GDB, but I need to know if malloc() and free() have been called more than once, to confirm that there is indeed at least one case where it runs smoothly.
(gdb) help break
Set breakpoint at specified line or function.
break [LOCATION] [thread THREADNUM] [if CONDITION]
LOCATION may be a line number, function name, or “*” and an address.
If a line number is specified, break at start of code for that line.
If a function is specified, break at start of code for that function.
If an address is specified, break at that exact address.
With no LOCATION, uses current execution address of selected stack frame.
This is useful for breaking on return to a stack frame.