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From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug analyzer/107017] New: RFE: support printf-style formatted
 functions in -fanalyzer
Date: Fri, 23 Sep 2022 13:00:53 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: analyzer
X-Bugzilla-Version: 13.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: dmalcolm at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107017

            Bug ID: 107017
           Summary: RFE: support printf-style formatted functions in
                    -fanalyzer
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: analyzer
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: dmalcolm at gcc dot gnu.org
  Target Milestone: ---

We currently have some support for parsing the insides of a printf-style fo=
rmat
string in two places:
* gcc/c-family/c-format.cc: implements -Wformat in the C/C++ frontends, doi=
ng
type-checking on format strings against their arguments
* gcc/gimple-ssa-sprintf.cc: implements parts of -Wformat_overflow=3D,
-Wformat_truncation=3D, and -Wrestrict.

Now that the analyzer has -Wanalyzer-out-of-bounds, it might be good to
generalize this format-string parsing so that the analyzer can reuse it, an=
d do
similar range analysis (but with the analyzer's more precise path-sensitive
interprocedural approach)=