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tools: Add coccinelle script to catch typecasts to larger sizes

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That's valid only for uint*_t

Signed-off-by: Donatas Abraitis <donatas.abraitis@gmail.com>
This commit is contained in:
Donatas Abraitis 2020-04-07 17:25:10 +03:00
parent 6b1d9f37ec
commit 71abb5c135
1 changed files with 20 additions and 0 deletions
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20
tools/coccinelle/cast_to_larger_sizes.cocci Normal file
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// spatch -sp_file tools/coccinelle/cast_to_larger_sizes.cocci --recursive-includes ./
@r@
typedef uint8_t;
typedef uint16_t;
typedef uint32_t;
typedef uint64_t;
uint8_t *i8;
position p;
@@
\(
(uint64_t *) i8@p\|(uint32_t *) i8@p\|(uint16_t *) i8@p
\)
@script:python@
p << r.p;
@@
coccilib.report.print_report(p[0],"Bad typecast to larger size")