[PATCH v2] tools: use $(PYTHON) to call cppcheck tools

[Bertrand Marquis <bertrand.marquis@xxxxxxx>]

When calling python tools to convert misra documentation or merge
cppcheck xml files, use $(PYTHON).
While there fix misra document conversion script to be executable.

Fixes: 57caa53753 (xen: Add MISRA support to cppcheck make rule)
Fixes: 43aa3f6e72 xen/build: Add cppcheck and cppcheck-html make rules
Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
Changes in v2:
- use $(PYTHON) in Makefile to call convert misra doc script
- use $(PYTHON) in Makefile to call merge cppcheck script
- change title as mode change is only a small part
- add "fixes" for the merge change
 xen/Makefile                   | 4 ++--
 xen/tools/convert_misra_doc.py | 0
 2 files changed, 2 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 xen/tools/convert_misra_doc.py

diff --git a/xen/Makefile b/xen/Makefile
index 3d926e1015..69b4dc960f 100644
--- a/xen/Makefile
+++ b/xen/Makefile
@@ -703,7 +703,7 @@ cmd_cppcheck_xml = $(CPPCHECK) -v -q --xml $(CPPCHECKFLAGS) 
\
                    --output-file=$@ $<
 
 quiet_cmd_merge_cppcheck_reports = CPPCHECK-MERGE $@
-cmd_merge_cppcheck_reports = $(srctree)/tools/merge_cppcheck_reports.py $^ $@
+cmd_merge_cppcheck_reports = $(PYTHON) 
$(srctree)/tools/merge_cppcheck_reports.py $^ $@
 
 quiet_cmd_cppcheck_html = CPPCHECK-HTML $<
 cmd_cppcheck_html = $(CPPCHECK_HTMLREPORT) --file=$< --source-dir=$(srctree) \
@@ -742,7 +742,7 @@ cppcheck-version:
 # cppcheck in json format including the list of rules to ignore.
 #
 cppcheck-misra.txt: $(XEN_ROOT)/docs/misra/rules.rst 
$(srctree)/tools/convert_misra_doc.py
-       $(Q)$(srctree)/tools/convert_misra_doc.py -i $< -o $@ -j $(@:.txt=.json)
+       $(Q)$(PYTHON) $(srctree)/tools/convert_misra_doc.py -i $< -o $@ -j 
$(@:.txt=.json)
 
 # convert_misra_doc is generating both files.
 cppcheck-misra.json: cppcheck-misra.txt
diff --git a/xen/tools/convert_misra_doc.py b/xen/tools/convert_misra_doc.py
old mode 100644
new mode 100755
-- 
2.25.1