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/* Subclasses of custom_edge_info for describing outcomes of function calls.
Copyright (C) 2021-2025 Free Software Foundation, Inc.
Contributed by David Malcolm <dmalcolm@redhat.com>.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#define INCLUDE_VECTOR
#include "system.h"
#include "coretypes.h"
#include "tree.h"
#include "function.h"
#include "basic-block.h"
#include "gimple.h"
#include "gimple-iterator.h"
#include "diagnostic-core.h"
#include "options.h"
#include "cgraph.h"
#include "tree-pretty-print.h"
#include "bitmap.h"
#include "analyzer/analyzer.h"
#include "analyzer/analyzer-logging.h"
#include "ordered-hash-map.h"
#include "cfg.h"
#include "digraph.h"
#include "analyzer/supergraph.h"
#include "sbitmap.h"
#include "analyzer/call-string.h"
#include "analyzer/program-point.h"
#include "analyzer/store.h"
#include "analyzer/region-model.h"
#include "analyzer/constraint-manager.h"
#include "diagnostic-event-id.h"
#include "analyzer/sm.h"
#include "analyzer/pending-diagnostic.h"
#include "analyzer/region-model-reachability.h"
#include "analyzer/analyzer-selftests.h"
#include "analyzer/program-state.h"
#include "diagnostic-path.h"
#include "analyzer/checker-path.h"
#include "analyzer/diagnostic-manager.h"
#include "analyzer/exploded-graph.h"
#include "analyzer/call-details.h"
#include "analyzer/call-info.h"
#include "make-unique.h"
#if ENABLE_ANALYZER
namespace ana {
/* class custom_edge_info. */
bool
custom_edge_info::update_state (program_state *state,
const exploded_edge *eedge,
region_model_context *ctxt) const
{
return update_model (state->m_region_model, eedge, ctxt);
}
/* class call_info : public custom_edge_info. */
/* Implementation of custom_edge_info::print vfunc for call_info. */
void
call_info::print (pretty_printer *pp) const
{
gcc_assert (pp);
print_desc (*pp);
}
/* Implementation of custom_edge_info::add_events_to_path vfunc for
call_info: add a custom_event using call_info::get_desc as its
description. */
void
call_info::add_events_to_path (checker_path *emission_path,
const exploded_edge &eedge) const
{
class call_event : public custom_event
{
public:
call_event (const event_loc_info &loc_info,
const call_info *call_info)
: custom_event (loc_info),
m_call_info (call_info)
{}
void print_desc (pretty_printer &pp) const final override
{
m_call_info->print_desc (pp);
}
private:
const call_info *m_call_info;
};
const exploded_node *src_node = eedge.m_src;
const program_point &src_point = src_node->get_point ();
tree caller_fndecl = src_point.get_fndecl ();
const int stack_depth = src_point.get_stack_depth ();
emission_path->add_event
(make_unique<call_event> (event_loc_info (get_call_stmt ()->location,
caller_fndecl,
stack_depth),
this));
}
/* Recreate a call_details instance from this call_info. */
call_details
call_info::get_call_details (region_model *model,
region_model_context *ctxt) const
{
return call_details (m_call_stmt, model, ctxt);
}
/* call_info's ctor.
The call_info instance will outlive the call_details instance;
call_details instances are typically created on the stack. */
call_info::call_info (const call_details &cd)
: m_call_stmt (cd.get_call_stmt ()),
m_fndecl (cd.get_fndecl_for_call ())
{
gcc_assert (m_fndecl);
}
call_info::call_info (const call_details &cd,
const function &called_fn)
: m_call_stmt (cd.get_call_stmt ()),
m_fndecl (called_fn.decl)
{
gcc_assert (m_fndecl);
}
/* class succeed_or_fail_call_info : public call_info. */
void
succeed_or_fail_call_info::print_desc (pretty_printer &pp) const
{
if (m_success)
pp_printf (&pp, "when %qE succeeds", get_fndecl ());
else
pp_printf (&pp, "when %qE fails", get_fndecl ());
}
} // namespace ana
#endif /* #if ENABLE_ANALYZER */
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