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annotate gen/programs.cpp @ 1650:40bd4a0d4870

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Update to work with LLVM 2.7. Removed use of dyn_cast, llvm no compiles without exceptions and rtti by default. We do need exceptions for the libconfig stuff, but rtti isn't necessary (anymore). Debug info needs to be rewritten, as in LLVM 2.7 the format has completely changed. To have something to look at while rewriting, the old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means that you have to define this to compile at the moment. Updated tango 0.99.9 patch to include updated EH runtime code, which is needed for LLVM 2.7 as well.
author Tomas Lindquist Olsen
date Wed, 19 May 2010 12:42:32 +0200
parents a376776e2301
children
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1 #include "gen/programs.h"
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2
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3 #include "llvm/Support/CommandLine.h"
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4 #include "llvm/System/Program.h"
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5
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6 #include "root.h" // error(char*)
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7 #include "mars.h" // fatal()
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8
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9 using namespace llvm;
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10
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11 static cl::opt<std::string> gcc("gcc",
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12 cl::desc("GCC to use for assembling and linking"),
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13 cl::Hidden,
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14 cl::ZeroOrMore);
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17 sys::Path getGcc() {
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18 const char *cc = NULL;
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19
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20 if (gcc.getNumOccurrences() > 0 && gcc.length() > 0)
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21 cc = gcc.c_str();
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23 if (!cc)
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24 cc = getenv("CC");
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25 if (!cc)
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26 cc = "gcc";
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28 sys::Path path = sys::Program::FindProgramByName(cc);
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29 if (path.empty() && !cc) {
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30 if (cc) {
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31 path.set(cc);
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32 } else {
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33 error("failed to locate gcc");
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34 fatal();
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35 }
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36 }
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38 return path;
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39 }