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Document the ptrace() PT_STEP request.

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Add references to the newly added hardware debug register
support functions i386_clr_watch(3) and i386_set_watch(3).

Reviewed by:    Sean Eric Fagan <sef@kithrup.com>
                and no other response to the review request.
This commit is contained in:
John W. De Boskey 2000-10-14 04:01:39 +00:00
parent 2ec40c9aac
commit 6bf02e51da
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=67108
1 changed files with 10 additions and 1 deletions
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11
lib/libc/sys/ptrace.2
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@ -143,6 +143,13 @@ to indicate that execution is to pick up where it left off.
.Fa data
provides a signal number to be delivered to the traced process as it
resumes execution, or 0 if no signal is to be sent.
.It Dv PT_STEP
The traced process is single stepped one instruction.
The
.Fa addr
and
.Fa data
fields are not used.
.It Dv PT_KILL
The traced process terminates, as if
.Dv PT_CONTINUE
@ -306,7 +313,9 @@ above.
.Xr execve 2 ,
.Xr sigaction 2 ,
.Xr wait 2 ,
.Xr execv 3
.Xr execv 3 ,
.Xr i386_clr_watch 3 ,
.Xr i386_set_watch 3
.Sh HISTORY
A
.Fn ptrace