diff options
| -rw-r--r-- | libstdc++-v3/doc/html/manual/status.html | 13 | ||||
| -rw-r--r-- | libstdc++-v3/doc/xml/manual/status_cxx2011.xml | 30 |
2 files changed, 43 insertions, 0 deletions
diff --git a/libstdc++-v3/doc/html/manual/status.html b/libstdc++-v3/doc/html/manual/status.html index ad61231..c449fde 100644 --- a/libstdc++-v3/doc/html/manual/status.html +++ b/libstdc++-v3/doc/html/manual/status.html @@ -325,6 +325,19 @@ particular release. instruction to read from an on-chip hardware random number generator. These tokens are only valid for x86 and x86_64 targets when both the assembler and CPU support the corresponding instruction. + </dd><dt><span class="term"><code class="literal">"darn"</code></span></dt><dd> + Use the Power ISA-3.0 <code class="literal">DARN</code> + ("Deliver A Random Number") + instruction to read from an on-chip hardware random number generator. + This token is only valid for 64-bit powerpc targets when both + the assembler and CPU support the corresponding instruction. + </dd><dt><span class="term"><code class="literal">"hw"</code>, </span><span class="term"><code class="literal">"hardware"</code></span></dt><dd> + Use any available CPU + instruction to read from an on-chip hardware random number generator. + This is equivalent to trying each of the following and using the + first that is supported: + <code class="literal">"rdseed"</code><code class="literal">"rdrand"</code><code class="literal">"darn"</code></dd><dt><span class="term"><code class="literal">"arc4random"</code>, </span><span class="term"><code class="literal">"getentropy"</code></span></dt><dd> + Use the named C library function, if available on the target. </dd><dt><span class="term"><code class="literal">"/dev/urandom"</code>, </span><span class="term"><code class="literal">"/dev/random"</code></span></dt><dd> Use the named character special file to read random bytes from. These tokens are only valid when the device files are present diff --git a/libstdc++-v3/doc/xml/manual/status_cxx2011.xml b/libstdc++-v3/doc/xml/manual/status_cxx2011.xml index 88844f8..1eeb2d1 100644 --- a/libstdc++-v3/doc/xml/manual/status_cxx2011.xml +++ b/libstdc++-v3/doc/xml/manual/status_cxx2011.xml @@ -2721,6 +2721,36 @@ particular release. </listitem> </varlistentry> <varlistentry> + <term><literal>"darn"</literal></term> + <listitem> + Use the Power ISA-3.0 <literal>DARN</literal> + ("Deliver A Random Number") + instruction to read from an on-chip hardware random number generator. + This token is only valid for 64-bit powerpc targets when both + the assembler and CPU support the corresponding instruction. + </listitem> + </varlistentry> + <varlistentry> + <term><literal>"hw"</literal></term> + <term><literal>"hardware"</literal></term> + <listitem> + Use any available CPU + instruction to read from an on-chip hardware random number generator. + This is equivalent to trying each of the following and using the + first that is supported: + <literal>"rdseed"</literal> + <literal>"rdrand"</literal> + <literal>"darn"</literal> + </listitem> + </varlistentry> + <varlistentry> + <term><literal>"arc4random"</literal></term> + <term><literal>"getentropy"</literal></term> + <listitem> + Use the named C library function, if available on the target. + </listitem> + </varlistentry> + <varlistentry> <term><literal>"/dev/urandom"</literal></term> <term><literal>"/dev/random"</literal></term> <listitem> |