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Merge pull request #4104 from hannes-steffenhagen-diffblue/fix-use_entry_point_mode 

Use mode of entry function to generate __CPROVER__start
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hannes-steffenhagen-diffblue 2019-02-07 16:30:59 +00:00 committed by GitHub
parent dcb6b94f66 914928cce4
commit 6a865c59f0
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1 changed files with 40 additions and 4 deletions
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38
src/goto-programs/initialize_goto_model.cpp
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@ -29,6 +29,32 @@ Author: Daniel Kroening, kroening@kroening.com
#include "goto_convert_functions.h"
#include "read_goto_binary.h"
/// Generate an entry point that calls a function with the given name, based on
/// the functions language mode in the symbol table
static bool generate_entry_point_for_function(
const irep_idt &entry_function_name,
const optionst &options,
goto_modelt &goto_model,
message_handlert &message_handler)
{
auto const entry_function_sym =
goto_model.symbol_table.lookup(entry_function_name);
if(entry_function_sym == nullptr)
{
throw invalid_command_line_argument_exceptiont{
// NOLINTNEXTLINE(whitespace/braces)
std::string{"couldn't find function with name `"} +
id2string(entry_function_name) + "' in symbol table",
"--function"};
}
PRECONDITION(!entry_function_sym->mode.empty());
auto const entry_language = get_language_from_mode(entry_function_sym->mode);
CHECK_RETURN(entry_language != nullptr);
entry_language->set_message_handler(message_handler);
entry_language->set_language_options(options);
return entry_language->generate_support_functions(goto_model.symbol_table);
}
goto_modelt initialize_goto_model(
const std::vector<std::string> &files,
message_handlert &message_handler,
@ -132,12 +158,22 @@ goto_modelt initialize_goto_model(
entry_point_generation_failed=rebuild_existing_start();
}
else if(!binaries_provided_start)
{
if(options.is_set("function"))
{
// no entry point is present; Use the mode of the specified entry function
// to generate one
entry_point_generation_failed = generate_entry_point_for_function(
options.get_option("function"), options, goto_model, message_handler);
}
if(entry_point_generation_failed || !options.is_set("function"))
{
// Allow all language front-ends to try to provide the user-specified
// (--function) entry-point, or some language-specific default:
entry_point_generation_failed=
entry_point_generation_failed =
language_files.generate_support_functions(goto_model.symbol_table);
}
}
if(entry_point_generation_failed)
{