HP SunSoft Pascal 4.0 - Manual (Page 39)

Pascal Programs 15
2
In this example, ErrorInHere reported the error. The ErrorInHere
procedure was called by Call1.Call2 , which was in turn called by the main
program. Routine names, such as Call1.Call2 , indicate a nested routine. If
Pascal cannot find the name of a routine, for example, because the executable
file has been stripped, it prints the hex address.
Using the -g Option
If you compile the program with the –g option, the traceback also reports the
arguments, the line number, and the file name of each routine.
hostname% pc SegViol.p
hostname% a.out
*** a.out terminated by signal 11: segmentation violation
*** Traceback being written to a.out.trace
Abort (core dumped)
hostname% more a.out.trace
*** Stacktrace of a.out
*** Program terminated due to segmentation violation
[3] __PC0__sigdie(0xb, 0xefffedf0, 0xefffec30, 0x0, 0x1, 0x0), at 0x12128
---- called from signal handler with signal 11 (SIGSEGV) ------
[4] ErrorInHere(), at 0x115ec
[5] Call2(0xefffefc8, 0xefffefa8, 0xefffef88, 0x0, 0xef74dd58, 0x0), at 0x11624
[6] Call1(0x25400, 0x25800, 0x25b80, 0x25b80, 0x3, 0x0), at 0x11660
[7] program(0x1, 0xeffff0fc, 0x4, 0xef7d0000, 0x2, 0xef74dae8), at 0x116a4
[8] main(0x1, 0xeffff0fc, 0xeffff104, 0x25000, 0x0, 0x0), at 0x116e0
detaching from process 17266