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Makefile: Refactor checks for lang-specific targets and export compile cmds 

The checks are now split into languages that are able to generate
assembly listings, languages that are able to generate preprocessed
listings, and languages that are able to export the compile commands.
This commit is contained in:
Tim Gallagher 2014-11-05 13:37:25 -05:00 committed by Brad King
parent d5a373a10d
commit 0842b08463
2 changed files with 34 additions and 22 deletions
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42
Source/cmLocalUnixMakefileGenerator3.cxx
View File

@ -315,36 +315,42 @@ void cmLocalUnixMakefileGenerator3::WriteLocalMakefile()
// Check whether preprocessing and assembly rules make sense.
// They make sense only for C and C++ sources.
bool lang_is_c_or_cxx = false;
bool lang_has_preprocessor = false;
bool lang_has_assembly = false;
for(std::vector<LocalObjectEntry>::const_iterator ei =
lo->second.begin(); ei != lo->second.end(); ++ei)
{
if(ei->Language == "C" || ei->Language == "CXX")
if(ei->Language == "C" ||
ei->Language == "CXX")
{
lang_is_c_or_cxx = true;
// Right now, C and C++ have both a preprocessor and the
// ability to generate assembly code
lang_has_preprocessor = true;
lang_has_assembly = true;
break;
}
}
// Add convenience rules for preprocessed and assembly files.
if(lang_is_c_or_cxx && (do_preprocess_rules || do_assembly_rules))
if(lang_has_preprocessor && do_preprocess_rules)
{
std::string::size_type dot_pos = lo->first.rfind(".");
std::string base = lo->first.substr(0, dot_pos);
if(do_preprocess_rules)
{
this->WriteObjectConvenienceRule(
ruleFileStream, "target to preprocess a source file",
(base + ".i").c_str(), lo->second);
lo->second.HasPreprocessRule = true;
}
if(do_assembly_rules)
{
this->WriteObjectConvenienceRule(
ruleFileStream, "target to generate assembly for a file",
(base + ".s").c_str(), lo->second);
lo->second.HasAssembleRule = true;
}
this->WriteObjectConvenienceRule(
ruleFileStream, "target to preprocess a source file",
(base + ".i").c_str(), lo->second);
lo->second.HasPreprocessRule = true;
}
if(lang_has_assembly && do_assembly_rules)
{
std::string::size_type dot_pos = lo->first.rfind(".");
std::string base = lo->first.substr(0, dot_pos);
this->WriteObjectConvenienceRule(
ruleFileStream, "target to generate assembly for a file",
(base + ".s").c_str(), lo->second);
lo->second.HasAssembleRule = true;
}
}

14
Source/cmMakefileTargetGenerator.cxx
View File

@ -702,7 +702,13 @@ cmMakefileTargetGenerator
vars.Defines = definesString.c_str();
bool lang_is_c_or_cxx = ((lang == "C") || (lang == "CXX"));
// At the moment, it is assumed that C and C++ have both
// assembly and preprocessor capabilities. The same is true for the
// ability to export compile commands
bool lang_has_preprocessor = ((lang == "C") ||
(lang == "CXX"));
bool const lang_has_assembly = lang_has_preprocessor;
bool const lang_can_export_cmds = lang_has_preprocessor;
// Construct the compile rules.
{
@ -715,7 +721,7 @@ cmMakefileTargetGenerator
cmSystemTools::ExpandListArgument(compileRule, compileCommands);
if (this->Makefile->IsOn("CMAKE_EXPORT_COMPILE_COMMANDS") &&
lang_is_c_or_cxx && compileCommands.size() == 1)
lang_can_export_cmds && compileCommands.size() == 1)
{
std::string compileCommand = compileCommands[0];
this->LocalGenerator->ExpandRuleVariables(compileCommand, vars);
@ -771,9 +777,9 @@ cmMakefileTargetGenerator
}
}
bool do_preprocess_rules = lang_is_c_or_cxx &&
bool do_preprocess_rules = lang_has_preprocessor &&
this->LocalGenerator->GetCreatePreprocessedSourceRules();
bool do_assembly_rules = lang_is_c_or_cxx &&
bool do_assembly_rules = lang_has_assembly &&
this->LocalGenerator->GetCreateAssemblySourceRules();
if(do_preprocess_rules || do_assembly_rules)
{