K 10
svn:author
V 4
zont
K 8
svn:date
V 27
2012-10-03T14:28:55.737770Z
K 7
svn:log
V 1267
MFC r239501:
- Use pid_t type instead of just int.

MFC r239611:
- Put arguments for print_syscall_ret() function in proper order.
  Bug was introduced in r192025.

MFC r239898:
- Remove unused variables.
- Fix warnings about comparing signed and unsigned ints.

MFC r240005:
- Style(9) cleanup.

MFC r240364:
- Remove unused variables.
- Remove redundant return after err(3) call.

MFC r240393:
- Fix detaching under some circumstances.

  When truss is detaching from very active process it is possible to
  hang on waitpid(2) in restore_proc() forever, because
  ptrace(PT_SYSCALL) must be called before detaching, to allow the
  debugging process to continue execution.  Also when truss called with
  '-c' argument, it does not print anything after detach, because it
  immediately exits from restore_proc().

  To fix these two problems make detaching deferred, but then it is
  impossible to detach from a process which does not do any system call.
  To fix this issue use sigaction(2) instead of signal(3) to disable
  SA_RESTART flag for waitpid(2) that makes it non-restartable.  Remove
  global variable child_pid, because now detaching is handled in context
  where child's pid is known.

MFC r240562:
- Make truss thread-aware.

Approved by:	kib (mentor)

END