diff options
Diffstat (limited to 'static/freebsd/man9/proc_rwmem.9 4.html')
| -rw-r--r-- | static/freebsd/man9/proc_rwmem.9 4.html | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/static/freebsd/man9/proc_rwmem.9 4.html b/static/freebsd/man9/proc_rwmem.9 4.html deleted file mode 100644 index 0d391845..00000000 --- a/static/freebsd/man9/proc_rwmem.9 4.html +++ /dev/null @@ -1,95 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">PROC_RWMEM(9)</td> - <td class="head-vol">Kernel Developer's Manual</td> - <td class="head-rtitle">PROC_RWMEM(9)</td> - </tr> -</table> -<div class="manual-text"> -<section class="Sh"> -<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> -<p class="Pp"><code class="Nm">proc_rwmem</code>, - <code class="Nm">proc_readmem</code>, <code class="Nm">proc_writemem</code> - — <span class="Nd">read from or write to a process address - space</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<p class="Pp"><code class="In">#include - <<a class="In">sys/types.h</a>></code> - <br/> - <code class="In">#include <<a class="In">sys/ptrace.h</a>></code></p> -<p class="Pp"><var class="Ft">int</var> - <br/> - <code class="Fn">proc_rwmem</code>(<var class="Fa" style="white-space: nowrap;">struct - proc *p</var>, <var class="Fa" style="white-space: nowrap;">struct uio - *uio</var>);</p> -<p class="Pp"><var class="Ft">ssize_t</var> - <br/> - <code class="Fn">proc_readmem</code>(<var class="Fa" style="white-space: nowrap;">struct - thread *td</var>, <var class="Fa" style="white-space: nowrap;">struct proc - *p</var>, <var class="Fa" style="white-space: nowrap;">vm_offset_t va</var>, - <var class="Fa" style="white-space: nowrap;">void *buf</var>, - <var class="Fa" style="white-space: nowrap;">size_t len</var>);</p> -<p class="Pp"><var class="Ft">ssize_t</var> - <br/> - <code class="Fn">proc_writemem</code>(<var class="Fa" style="white-space: nowrap;">struct - thread *td</var>, <var class="Fa" style="white-space: nowrap;">struct proc - *p</var>, <var class="Fa" style="white-space: nowrap;">vm_offset_t va</var>, - <var class="Fa" style="white-space: nowrap;">void *buf</var>, - <var class="Fa" style="white-space: nowrap;">size_t len</var>);</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">These functions are used to read to or write from the address - space of the process <var class="Fa">p</var>. The - <a class="permalink" href="#proc_rwmem"><code class="Fn" id="proc_rwmem">proc_rwmem</code></a>() - function requires the caller to specify the I/O parameters using a - <var class="Vt">struct uio</var>, described in <a class="Xr">uio(9)</a>. The - <a class="permalink" href="#proc_readmem"><code class="Fn" id="proc_readmem">proc_readmem</code></a>() - and - <a class="permalink" href="#proc_writemem"><code class="Fn" id="proc_writemem">proc_writemem</code></a>() - functions provide a simpler, less general interface which allows the caller - to read into or write the kernel buffer <var class="Fa">buf</var> of size - <var class="Fa">len</var> from or to the memory at offset - <var class="Fa">va</var> in the address space of <var class="Fa">p</var>. - The operation is performed on behalf of thread <var class="Fa">td</var>, - which will most often be the current thread.</p> -<p class="Pp">These functions may sleep and thus may not be called with any - non-sleepable locks held. The process <var class="Fa">p</var> must be held - by the caller using <a class="Xr">PHOLD(9)</a>.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN - VALUES</a></h1> -<p class="Pp">The <code class="Fn">proc_rwmem</code>() function returns - <code class="Dv">0</code> on success. <code class="Dv">EFAULT</code> is - returned if the specified user address is invalid, and - <code class="Dv">ENOMEM</code> is returned if the target pages could not be - faulted in due to a resource shortage.</p> -<p class="Pp">The <code class="Fn">proc_readmem</code>() and - <code class="Fn">proc_writemem</code>() functions return the number of bytes - read or written, respectively. This may be smaller than the number of bytes - requested, for example if the request spans multiple pages in the process - address space and one of them after the first is not mapped. Otherwise, -1 - is returned.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE - ALSO</a></h1> -<p class="Pp"><a class="Xr">copyin(9)</a>, <a class="Xr">locking(9)</a>, - <a class="Xr">PHOLD(9)</a>, <a class="Xr">uio(9)</a></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1> -<p class="Pp">This manual page was written by <span class="An">Mark - Johnston</span> - <<a class="Mt" href="mailto:markj@FreeBSD.org">markj@FreeBSD.org</a>>.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">December 7, 2015</td> - <td class="foot-os">FreeBSD 15.0</td> - </tr> -</table> |
