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Detect when TRICK_ICG is used in header files and compensate for it. #375

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Created a hook for the clang preprocessor.  The hook does 2 things.  It
keeps track to which header files we have entered and exited.  Second it
searches for the use of TRICK_ICG.  If we find an instance of TRICK_ICG we
mark all of the included files from this point up the chain as requiring
compensation.  To compensate for using TRICK_ICG we write out the older
offset statements to get the location of variables in classes/structures.
This commit is contained in:
Alex Lin
2017-01-11 15:02:21 -06:00
parent 0140b0b966
commit ba47c2048c
6 changed files with 190 additions and 21 deletions
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6
trick_source/codegen/Interface_Code_Gen/main.cpp
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@ -23,6 +23,7 @@
#include "TranslationUnitVisitor.hh"
#include "PrintAttributes.hh"
#include "Utilities.hh"
#include "FindTrickICG.hh"
/* Command line arguments. These work better as globals, as suggested in llvm/CommandLine documentation */
llvm::cl::list<std::string> include_dirs("I", llvm::cl::Prefix, llvm::cl::desc("Include directory"), llvm::cl::value_desc("directory"));
@ -41,6 +42,7 @@ llvm::cl::list<std::string> sink(llvm::cl::Sink, llvm::cl::ZeroOrMore);
llvm::cl::list<std::string> pre_compiled_headers("include", llvm::cl::Prefix, llvm::cl::desc("pre-compiled headers"), llvm::cl::value_desc("pre_compiled_headers"));
llvm::cl::opt<bool> global_compat15("c", llvm::cl::desc("Print the offsetof calculations in attributes")) ;
llvm::cl::opt<llvm::cl::boolOrDefault> print_trick_icg("print-TRICK-ICG", llvm::cl::desc("Print warnings where TRICK_ICG may cause io_src inconsistencies")) ;
llvm::cl::alias compat15_alias ("compat15" , llvm::cl::desc("Alias for -c") , llvm::cl::aliasopt(global_compat15)) ;
/**
@ -125,6 +127,10 @@ int main(int argc, char * argv[]) {
HeaderSearchDirs hsd(ci.getPreprocessor().getHeaderSearchInfo(), ci.getHeaderSearchOpts(), pp, sim_services_flag);
hsd.addSearchDirs(include_dirs);
// Add a preprocessor callback to search for TRICK_ICG
FindTrickICG * ftg = new FindTrickICG(ci, hsd, print_trick_icg != llvm::cl::BOU_FALSE ) ;
pp.addPPCallbacks(ftg) ;
#if (LIBCLANG_MAJOR > 3) || ((LIBCLANG_MAJOR == 3) && (LIBCLANG_MINOR >= 8))
pp.getBuiltinInfo().initializeBuiltins(pp.getIdentifierTable(), pp.getLangOpts());
#else