6.828 Lecture 2 - C & gdb

No lecture video, but there are two sets of slides and a reading req for some bits of K&R:

• C: https://pdos.csail.mit.edu/6.828/2021/lec/l-c-slides.pdf
• gdb: https://pdos.csail.mit.edu/6.828/2021/lec/gdb_slides.pdf
• Req - K&R C
  • 2.9 (Bitwise operators)
  • 5.1 (Pointers and addresses) through 5.6 (Pointer arrays)
  • 6.4 (pointers to structures)

• 

• Pointers add and subtract in increments of the base data’s length

  • TIL
  • https://en.wikipedia.org/wiki/C_data_types

• 

• Use the extern keyword! Extends function’s visibility to all files in the program.

• Use riscv64-unknown-elf-gdb, not gdb

• finish/advance

• Breakpoints / watchpoints

• info/list

• layout next

• It is well worth your time to spend an hour learning more about how to use [gdb].