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option handling for new -u/-uu flag for reporting usage issues

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This commit is contained in:
Vern Paxson 2021-01-23 10:25:06 -08:00
parent 989cc6f607
commit 732633ebb4
4 changed files with 31 additions and 8 deletions
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14
src/script_opt/ScriptOpt.cc
View file

@ -12,6 +12,8 @@
namespace zeek::detail {
AnalyOpt analysis_options;
std::unordered_set<const Func*> non_recursive_funcs;
// Tracks all of the loaded functions (including event handlers and hooks).
@ -104,10 +106,8 @@ static void check_env_opt(const char* opt, bool& opt_flag)
opt_flag = true;
}
void analyze_scripts(Options& opts)
void analyze_scripts()
{
auto& analysis_options = opts.analysis_options;
static bool did_init = false;
if ( ! did_init )
@ -116,6 +116,11 @@ void analyze_scripts(Options& opts)
check_env_opt("ZEEK_INLINE", analysis_options.inliner);
check_env_opt("ZEEK_XFORM", analysis_options.activate);
auto usage = getenv("ZEEK_USAGE_ISSUES");
if ( usage )
analysis_options.usage_issues = atoi(usage) > 1 ? 2 : 1;
if ( ! analysis_options.only_func )
{
auto zo = getenv("ZEEK_ONLY");
@ -123,7 +128,8 @@ void analyze_scripts(Options& opts)
analysis_options.only_func = zo;
}
if ( analysis_options.only_func )
if ( analysis_options.only_func ||
analysis_options.usage_issues > 0 )
analysis_options.activate = true;
did_init = true;

12
src/script_opt/ScriptOpt.h
View file

@ -36,8 +36,18 @@ struct AnalyOpt {
// If true, report which functions are directly and indirectly
// recursive, and exit. Only germane if running the inliner.
bool report_recursive = false;
// If non-zero, looks for variables that are used-but-possibly-not-set,
// or set-but-not-used.
//
// If > 1, also reports on uses of uninitialized record fields and
// analyzes nested records in depth. Warning: with the current
// data structures this greatly increases analysis time.
int usage_issues = 0;
};
extern AnalyOpt analysis_options;
class ProfileFunc;
@ -81,7 +91,7 @@ extern std::unordered_set<const Func*> non_recursive_funcs;
extern void analyze_func(ScriptFuncPtr f);
// Analyze all of the parsed scripts collectively for optimization.
extern void analyze_scripts(Options& opts);
extern void analyze_scripts();
} // namespace zeek::detail