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Update ptrace(2) re: PT_READ_U and PT_WRITE_U

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This commit is contained in:
Peter Wemm 2001-08-08 05:28:09 +00:00
parent 2aca0c28d3
commit 20f9910b18
1 changed files with 0 additions and 45 deletions
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45
lib/libc/sys/ptrace.2
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@ -91,42 +91,6 @@ and
except that they write rather than read. The
.Fa data
argument supplies the value to be written.
.It Dv PT_READ_U
This request reads an
.Vt int
from the traced process' user structure. The
.Fa addr
argument specifies the location of the int relative to the base of the
user structure; it will usually be an integer value cast to
.Vt caddr_t
either explicitly or via the presence of a prototype for
.Eo \&
.Fn ptrace
.Ec .
Unlike
.Dv PT_READ_I
and
.Dv PT_READ_D ,
.Fa addr
must be aligned on an
.Vt int
boundary. The value read is returned as the return value from
.Eo \&
.Fn ptrace
.Ec .
.It Dv PT_WRITE_U
This request writes an
.Vt int
into the traced process' user structure.
.Fa addr
specifies the offset, just as for
.Dv PT_READ_U ,
and
.Fa data
specifies the value to be written, just as for
.Dv PT_WRITE_I
and
.Dv PT_WRITE_D .
.It Dv PT_CONTINUE
The traced process continues execution.
.Fa addr
@ -264,15 +228,6 @@ The
.Fa request
was not one of the legal requests.
.It
The
.Fa addr
to
.Dv PT_READ_U
or
.Dv PT_WRITE_U
was not
.Vt int Ns \-aligned .
.It
The signal number (in
.Fa data )
to