CODEWITHSUNDEEP
c++macosmakefilellvmllvm-clang
user2469321
user2469321

Reputation: 109

Installing & Compiling with LLVM on Mac OS X

I have a project (That works) that I'm trying to compile on my Mac. It uses a variety of things including LLVM, which was the only one I didn't have installed. So I followed the instructions here: http://www.isi.edu/~pedro/Teaching/CSCI565-Spring15/Projects/Project1-LLVM/LLVMInstructions-MacOSX10.9.pdf

This seemed to work, however my makefile required I install LLVM 3.3, while that tutorial is for LLVM 3.5. Now, both before and after installing, when I run make I get the following error:

$ make
compiling cpp yacc file: expr-codegen.y
output file: expr-codegen
bison -b expr-codegen -d expr-codegen.y
/bin/mv -f expr-codegen.tab.c expr-codegen.tab.cc
flex -oexpr-codegen.lex.cc expr-codegen.lex
clang -g -c decaf-stdlib.c
clang++ -o ./expr-codegen expr-codegen.tab.cc expr-codegen.lex.cc decaf-stdlib.o `llvm-config-3.3 --cppflags --ldflags --libs core jit native` -ly -ll
/bin/sh: llvm-config-3.3: command not found
In file included from expr-codegen.y:6:
./decafdefs.h:5:10: fatal error: 'llvm/IR/DerivedTypes.h' file not found
#include "llvm/IR/DerivedTypes.h"
         ^
1 error generated.
In file included from expr-codegen.lex:2:
./decafdefs.h:5:10: fatal error: 'llvm/IR/DerivedTypes.h' file not found
#include "llvm/IR/DerivedTypes.h"
         ^
1 error generated.
make: *** [expr-codegen] Error 1

Here's my makefile:

lexlib=l
yacclib=y
bindir=.
rm=/bin/rm -f
mv=/bin/mv -f
targets=
#cpptargets=type-inherit decaf-sym
#llvmtargets=factorial
#llvmcpp=sexpr2-codegen expr-codegen
#llvmfiles=rec_add
#llvmcpp=decaf-sym expr-codegen sexpr2-codegen
llvmcpp=expr-codegen

all: $(targets) $(cpptargets) $(llvmfiles) $(llvmcpp)

$(targets): %: %.y
    @echo "compiling yacc file:" $<
    @echo "output file:" $@
    bison [email protected] -d $<
    flex [email protected] [email protected]
    clang -o $(bindir)/$@ [email protected] [email protected] -l$(yacclib) -l$(lexlib)
    $(rm) [email protected] [email protected] [email protected]

$(cpptargets): %: %.y
    @echo "compiling cpp yacc file:" $<
    @echo "output file:" $@
    bison -b $@ -d $<
    $(mv) [email protected] [email protected]
    flex [email protected] [email protected]
    clang++ -o $(bindir)/$@ [email protected] [email protected] -l$(yacclib) -l$(lexlib)
    $(rm) [email protected] [email protected] [email protected]

$(llvmcpp): %: %.y
    @echo "compiling cpp yacc file:" $<
    @echo "output file:" $@
    bison -b $@ -d $<
    $(mv) [email protected] [email protected]
    flex [email protected] [email protected]
    clang -g -c decaf-stdlib.c
    clang++ -o $(bindir)/$@ [email protected] [email protected] decaf-stdlib.o `llvm-config-3.3 --cppflags --ldflags --libs core jit native` -l$(yacclib) -l$(lexlib)
    $(rm) [email protected] [email protected] [email protected]

$(llvmtargets): %: %.ll
    @echo "using llvm to compile file:" $<
    llvm-as $<
    `llvm-config-3.3 --bindir`/llc -disable-cfi [email protected]
    clang [email protected] ../decaf-stdlib.c -o $(bindir)/$@

$(llvmfiles): %: %.ll
    @echo "using llvm to compile file:" $<
    llvm-as $<
    `llvm-config-3.3 --bindir`/llc -disable-cfi [email protected]
    clang [email protected] decaf-stdlib.c -o $(bindir)/$@

clean:
    $(rm) $(targets) $(cpptargets) $(llvmtargets) $(llvmcpp) $(llvmfiles)
    $(rm) *.tab.h *.tab.c *.lex.c
    $(rm) *.bc *.s *.o
    $(rm) -r *.dSYM

As a total newbie to LLVM I have no idea why I can't get the compiler to recognize LLVM and use it. Any help would be appreciated. Thanks.

Upvotes: 1

Views: 1503

Answers (1)

echristo
echristo

Reputation: 1727

From the llvm-config documentation:

    dzur:~/tmp> llvm-config
usage: llvm-config <OPTION>... [<COMPONENT>...]

Get various configuration information needed to compile programs which use
LLVM.  Typically called from 'configure' scripts.  Examples:
  llvm-config --cxxflags
  llvm-config --ldflags
  llvm-config --libs engine bcreader scalaropts

Which is pretty much what you need :)

Upvotes: 1

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