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authorRichard Henderson <richard.henderson@linaro.org>2021-04-29 10:03:59 -0700
committerRichard Henderson <richard.henderson@linaro.org>2021-05-01 11:45:35 -0700
commitaf93ccacc772019298be4c3e47251cdaa60d0c21 (patch)
tree3f5ec23f5f4d490bbd297fd0175c2f50d9a1af71 /docs/devel/decodetree.rst
parent60c425f328957caaa46da895086cc0ea46865d3d (diff)
decodetree: Extend argument set syntax to allow types
Rather than force all structure members to be 'int', allow the type of the member to be specified. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'docs/devel/decodetree.rst')
-rw-r--r--docs/devel/decodetree.rst11
1 files changed, 7 insertions, 4 deletions
diff --git a/docs/devel/decodetree.rst b/docs/devel/decodetree.rst
index 74f66bf46e..49ea50c2a7 100644
--- a/docs/devel/decodetree.rst
+++ b/docs/devel/decodetree.rst
@@ -40,9 +40,6 @@ and returns an integral value extracted from there.
A field with no ``unnamed_fields`` and no ``!function`` is in error.
-FIXME: the fields of the structure into which this result will be stored
-is restricted to ``int``. Which means that we cannot expand 64-bit items.
-
Field examples:
+---------------------------+---------------------------------------------+
@@ -66,9 +63,14 @@ Argument Sets
Syntax::
args_def := '&' identifier ( args_elt )+ ( !extern )?
- args_elt := identifier
+ args_elt := identifier (':' identifier)?
Each *args_elt* defines an argument within the argument set.
+If the form of the *args_elt* contains a colon, the first
+identifier is the argument name and the second identifier is
+the argument type. If the colon is missing, the argument
+type will be ``int``.
+
Each argument set will be rendered as a C structure "arg_$name"
with each of the fields being one of the member arguments.
@@ -86,6 +88,7 @@ Argument set examples::
&reg3 ra rb rc
&loadstore reg base offset
+ &longldst reg base offset:int64_t
Formats