---
- branch: MAIN
  date: Sat Jan  7 05:51:14 UTC 2017
  files:
  - new: '1.50'
    old: '1.49'
    path: src/lib/libc/sys/ptrace.2
    pathrev: src/lib/libc/sys/ptrace.2@1.50
    type: modified
  id: 20170107T055114Z.53c3c66812e44a78dfe5ee9e0e851b5e524fb141
  log: |
    Add more notes explaining how debuggers work on NetBSD

    Explain:
     - execve(2) handling and behavior, SIGTRAP & TRAP_EXEC
     - reference PaX MPROTECT restrictions for debuggers
     - software breakpoints handling and behavior, SIGTRAP & TRAP_BKPT
     - single step behavior, SIGTRAP & TRAP_TRACE
     - list predefined MI symbols for help debuggers in port specific headers
     - explain that PT_TRACE_ME does not send a SIGSTOP signal

    Sponsored by <The NetBSD Foundation>
  module: src
  subject: 'CVS commit: src/lib/libc/sys'
  unixtime: '1483768274'
  user: kamil