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PATCH: 2/6: Add AVX support (Update document)
- From: "H.J. Lu" <hongjiu dot lu at intel dot com>
- To: GDB <gdb-patches at sourceware dot org>
- Date: Thu, 4 Mar 2010 10:04:08 -0800
- Subject: PATCH: 2/6: Add AVX support (Update document)
- References: <20100304180219.GA10826@intel.com>
- Reply-to: "H.J. Lu" <hjl dot tools at gmail dot com>
Hi,
This patch updates document for AVX support. OK to install?
Thanks.
H.J.
---
2010-03-03 H.J. Lu <hongjiu.lu@intel.com>
* gdb.texinfo (General Query Packets): Document x86:xstate
extension in gdb remote protocol.
(i386 Features): Add org.gnu.gdb.i386.avx.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 6bb7d52..9bb79ae 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -30250,6 +30250,16 @@ extensions to the remote protocol. @value{GDBN} does not use such
extensions unless the stub also reports that it supports them by
including @samp{multiprocess+} in its @samp{qSupported} reply.
@xref{multiprocess extensions}, for details.
+
+@item x86:xstate=@var{bytes}:xcr0=@var{value}
+This feature indicates that @value{GDBN} supports x86 XSAVE extended
+state. @var{bytes} specifies the maximum size in bytes of x86 XSAVE
+extended state @value{GDBN} supports. @var{value} specifies the
+maximum value of the extended control register 0 (the
+XFEATURE_ENABLED_MASK register) @value{GDBN} supports. The stub should
+select the best target description supported by @value{GDBN}, based on
+@var{bytes} and @var{value}. @var{bytes} and @var{value} are encoded
+as @sc{ascii} string in hexadecimal or decimal numbers.
@end table
Stubs should ignore any unknown values for
@@ -33320,8 +33330,7 @@ targets. It should describe the following registers:
The register sets may be different, depending on the target.
-The @samp{org.gnu.gdb.i386.sse} feature is required. It should
-describe registers:
+The @samp{org.gnu.gdb.i386.sse} feature should describe registers:
@itemize @minus
@item
@@ -33332,6 +33341,20 @@ describe registers:
@samp{mxcsr}
@end itemize
+The @samp{org.gnu.gdb.i386.avx} feature should describe registers:
+
+@itemize @minus
+@item
+@samp{ymm0} through @samp{ymm7} for i386
+@item
+@samp{ymm0} through @samp{ymm15} for amd64
+@item
+@samp{mxcsr}
+@end itemize
+
+One of the @samp{org.gnu.gdb.i386.sse} or @samp{org.gnu.gdb.i386.avx}
+feature is required, not both.
+
The @samp{org.gnu.gdb.i386.linux} feature is optional. It should
describe a single register, @samp{orig_eax}.