[PATCH] misra: increase identifiers length to 64

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

Currently the identifiers characters limit is arbitrarily set to 40. It
causes a few violations as we have some identifiers longer than 40.

Increase the limit to another rather arbitrary limit of 64. Thanks to
this change, we remove a few violations, getting us one step closer to
marking Rules 5.2 and 5.4 as clean.

Also update the ECLAIR config that was actually set to 63 as character
limit.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>

diff --git a/automation/eclair_analysis/ECLAIR/toolchain.ecl 
b/automation/eclair_analysis/ECLAIR/toolchain.ecl
index 86e9a79b52..8fb1778bce 100644
--- a/automation/eclair_analysis/ECLAIR/toolchain.ecl
+++ b/automation/eclair_analysis/ECLAIR/toolchain.ecl
@@ -155,8 +155,8 @@
 -doc_end
 
 -doc_begin="See Section \"4.3 Identifiers\" of "GCC_MANUAL"."
--config=STD.extidsig, behavior+={c99, GCC_ARM64, "63"}
--config=STD.extidsig, behavior+={c99, GCC_X86_64, "63"}
+-config=STD.extidsig, behavior+={c99, GCC_ARM64, "64"}
+-config=STD.extidsig, behavior+={c99, GCC_X86_64, "64"}
 -doc_end
 
 #
diff --git a/docs/misra/rules.rst b/docs/misra/rules.rst
index 4a144da8d6..3ed5801bff 100644
--- a/docs/misra/rules.rst
+++ b/docs/misra/rules.rst
@@ -154,7 +154,7 @@ maintainers if you want to suggest a change.
    * - `Rule 5.1 
<https://gitlab.com/MISRA/MISRA-C/MISRA-C-2012/Example-Suite/-/blob/master/R_05_01_2.c>`_
      - Required
      - External identifiers shall be distinct
-     - The Xen characters limit for identifiers is 40. Public headers
+     - The Xen characters limit for identifiers is 64. Public headers
        (xen/include/public/) are allowed to retain longer identifiers
        for backward compatibility.
 
@@ -162,7 +162,7 @@ maintainers if you want to suggest a change.
      - Required
      - Identifiers declared in the same scope and name space shall be
        distinct
-     - The Xen characters limit for identifiers is 40. Public headers
+     - The Xen characters limit for identifiers is 64. Public headers
        (xen/include/public/) are allowed to retain longer identifiers
        for backward compatibility.
 
@@ -177,7 +177,7 @@ maintainers if you want to suggest a change.
    * - `Rule 5.4 
<https://gitlab.com/MISRA/MISRA-C/MISRA-C-2012/Example-Suite/-/blob/master/R_05_04.c>`_
      - Required
      - Macro identifiers shall be distinct
-     - The Xen characters limit for macro identifiers is 40. Public
+     - The Xen characters limit for macro identifiers is 64. Public
        headers (xen/include/public/) are allowed to retain longer
        identifiers for backward compatibility.