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Fix verilog pre-processor for multi-level relative includes

This commit is contained in:
Clifford Wolf 2017-03-14 17:27:28 +01:00
parent c855353986
commit 088f9c9cab
1 changed files with 26 additions and 4 deletions
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30
frontends/verilog/preproc.cc
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@ -215,6 +215,7 @@ std::string frontend_verilog_preproc(std::istream &f, std::string filename, cons
{
std::set<std::string> defines_with_args;
std::map<std::string, std::string> defines_map(pre_defines_map);
std::vector<std::string> filename_stack;
int ifdef_fail_level = 0;
bool in_elseif = false;
@ -305,26 +306,47 @@ std::string frontend_verilog_preproc(std::istream &f, std::string filename, cons
}
std::ifstream ff;
ff.clear();
ff.open(fn.c_str());
std::string fixed_fn = fn;
ff.open(fixed_fn.c_str());
if (ff.fail() && fn.size() > 0 && fn[0] != '/' && filename.find('/') != std::string::npos) {
// if the include file was not found, it is not given with an absolute path, and the
// currently read file is given with a path, then try again relative to its directory
ff.clear();
ff.open(filename.substr(0, filename.rfind('/')+1) + fn);
fixed_fn = filename.substr(0, filename.rfind('/')+1) + fn;
ff.open(fixed_fn);
}
if (ff.fail() && fn.size() > 0 && fn[0] != '/') {
// if the include file was not found and it is not given with an absolute path, then
// search it in the include path
for (auto incdir : include_dirs) {
ff.clear();
ff.open(incdir + '/' + fn);
fixed_fn = incdir + '/' + fn;
ff.open(fixed_fn);
if (!ff.fail()) break;
}
}
if (ff.fail())
output_code.push_back("`file_notfound " + fn);
else
input_file(ff, fn);
input_file(ff, fixed_fn);
continue;
}
if (tok == "`file_push") {
skip_spaces();
std::string fn = next_token(true);
if (!fn.empty() && fn.front() == '"' && fn.back() == '"')
fn = fn.substr(1, fn.size()-2);
output_code.push_back(tok + " \"" + fn + "\"");
filename_stack.push_back(filename);
filename = fn;
continue;
}
if (tok == "`file_pop") {
output_code.push_back(tok);
filename = filename_stack.back();
filename_stack.pop_back();
continue;
}