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bab550371c
A common practice is to grep for "WARNING" or "ERROR" text in the report
output from a Coccinelle semantic patch script. So, include the text
"WARNING: " in the report output generated by the semantic patch for
desired filtering of the output. Also improves the readability of the
output. Here is an example of the old and new outputs reported:
xyz_file.c:131:39-40: atomic_add_unless
xyz_file.c:131:39-40: WARNING: atomic_add_unless
xyz_file.c:196:6-25: atomic_dec_and_test variation before object free at line 208.
xyz_file.c:196:6-25: WARNING: atomic_dec_and_test variation before object free at line 208.
Signed-off-by: Deepak R Varma <drv@mailo.com>
Acked-by: Julia Lawall <Julia.Lawall@inria.fr>
131 lines
2.3 KiB
Plaintext
131 lines
2.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-only
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// Check if refcount_t type and API should be used
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// instead of atomic_t type when dealing with refcounters
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//
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// Copyright (c) 2016-2017, Elena Reshetova, Intel Corporation
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//
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// Confidence: Moderate
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// URL: https://coccinelle.gitlabpages.inria.fr/website
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// Options: --include-headers --very-quiet
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virtual report
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@r1 exists@
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identifier a, x;
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position p1, p2;
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identifier fname =~ ".*free.*";
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identifier fname2 =~ ".*destroy.*";
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identifier fname3 =~ ".*del.*";
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identifier fname4 =~ ".*queue_work.*";
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identifier fname5 =~ ".*schedule_work.*";
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identifier fname6 =~ ".*call_rcu.*";
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@@
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(
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atomic_dec_and_test@p1(&(a)->x)
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atomic_dec_and_lock@p1(&(a)->x, ...)
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atomic_long_dec_and_lock@p1(&(a)->x, ...)
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atomic_long_dec_and_test@p1(&(a)->x)
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atomic64_dec_and_test@p1(&(a)->x)
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local_dec_and_test@p1(&(a)->x)
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)
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...
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(
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fname@p2(a, ...);
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fname2@p2(...);
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fname3@p2(...);
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fname4@p2(...);
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fname5@p2(...);
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fname6@p2(...);
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)
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@script:python depends on report@
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p1 << r1.p1;
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p2 << r1.p2;
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@@
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msg = "WARNING: atomic_dec_and_test variation before object free at line %s."
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coccilib.report.print_report(p1[0], msg % (p2[0].line))
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@r4 exists@
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identifier a, x, y;
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position p1, p2;
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identifier fname =~ ".*free.*";
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@@
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(
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atomic_dec_and_test@p1(&(a)->x)
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atomic_dec_and_lock@p1(&(a)->x, ...)
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atomic_long_dec_and_lock@p1(&(a)->x, ...)
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atomic_long_dec_and_test@p1(&(a)->x)
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atomic64_dec_and_test@p1(&(a)->x)
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local_dec_and_test@p1(&(a)->x)
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)
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...
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y=a
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...
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fname@p2(y, ...);
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@script:python depends on report@
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p1 << r4.p1;
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p2 << r4.p2;
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@@
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msg = "WARNING: atomic_dec_and_test variation before object free at line %s."
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coccilib.report.print_report(p1[0], msg % (p2[0].line))
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@r2 exists@
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identifier a, x;
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position p1;
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@@
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(
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atomic_add_unless(&(a)->x,-1,1)@p1
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atomic_long_add_unless(&(a)->x,-1,1)@p1
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atomic64_add_unless(&(a)->x,-1,1)@p1
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)
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@script:python depends on report@
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p1 << r2.p1;
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@@
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msg = "WARNING: atomic_add_unless"
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coccilib.report.print_report(p1[0], msg)
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@r3 exists@
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identifier x;
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position p1;
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@@
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(
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x = atomic_add_return@p1(-1, ...);
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x = atomic_long_add_return@p1(-1, ...);
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x = atomic64_add_return@p1(-1, ...);
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)
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@script:python depends on report@
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p1 << r3.p1;
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@@
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msg = "WARNING: x = atomic_add_return(-1, ...)"
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coccilib.report.print_report(p1[0], msg)
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