Winter 2025, CSCI 347, Test 1 Review

Test date: Friday, January 31, 2025

Bring your WWU ID card with you to the test.

Quick Review: Chapters 1, and 3 in you text plus other things talked about in class through on Monday, January 27, 2025. These topics include the C language review, history of UNIX, Make and GDB. Some of these topics are on video lectures.

Topic Review:

• C Language Review
• C preprocessor
• const, void, static modifiers
• pointers
• pointers in parameters
• return of values via pointer parameters
• pointer/array single concept
• dynamic memory
• History of UNIX
• UNIX basic concepts (Chapter 1)
• shells
• file name
• path name
• working directory
• home directory
• Standard files (in, out, err)
• process (ps command)
• pid
• uid
• gid
• System calls and Library functions
• Errors in system calls, perror, strerror
• Review of the C language
• Manual pages, func(n) notation
• chmod and basic permissions
• FILE I/O (Chapter 3)
• File descriptors
• open(2), flags, mode
• creat(2)
• close(2)
• lseek(2), SEEK_SET, SEEK_CUR, SEEK_END
• read(2)
• write(2)
• Kernel process table and fd arrays, open file table
• file sharing: independent opens vs open, fork()
• dup(2), dup2(2)
• fcntl(2)
• ioctl(2)
• Shell basics
• argument lists
• argc/argv
• fork(2)
• execve(2) and related calls
• Make
• Makefile, makefile
• format, comments
• target
• dependencies
• description (commands to execute)
• macros, definitions, use (XYZ=a, $(XYZ))
• Special macros, $@, $?, ...
• Macro string substitution, like ${SRCS:.c=.o}
• @ at beginning of command
• GDB
• gcc -g ...
• basic commands (step, next, quit, ...)
• run args ...
• break points
• break on conditional
• printing data
• identifying where a segmentation fault happens
• how to debug infinite loops

Example multiple choice question.

1. similar to ``my computer'' on a Windows OS.
2. the first working directory you have after login.
3. always the starting point for relative file names.
4. the main directory for the system.