I'm trying to build the 2.5 prerelease on my MacBook, and I'm getting
a bus error in tblgen:
$ rm -r * && ../src/configure --prefix=`pwd`/../install && make -j1
VERBOSE=1 ENABLE_OPTIMIZED=0
...
llvm[1]: Building Intrinsics.gen.tmp from Intrinsics.td
/Users/jyasskin/src/llvm-2.5/obj/Debug/bin/tblgen -I
/Users/jyasskin/src/llvm-2.5/src/lib/VMCore -I
/Users/jyasskin/src/llvm-2.5/src/include -I
/Users/jyasskin/src/llvm-2.5/src/include -I
/Users/jyasskin/src/llvm-2.5/src/lib/Target
/Users/jyasskin/src/llvm-2.5/src/include/llvm/Intrinsics.td -o
/Users/jyasskin/src/llvm-2.5/obj/lib/VMCore/Debug/Intrinsics.gen.tmp
-gen-intrinsic
make[1]: *** [/Users/jyasskin/src/llvm-2.5/obj/lib/VMCore/Debug/Intrinsics.gen.tmp]
Bus error
make: *** [all] Error 1
Looking through the code, I don't see anything wrong. Here's a bunch
of maybe-relevant information, but let me know if I should send
anything else.
$ gdb --args /Users/jyasskin/src/llvm-2.5/obj/Debug/bin/tblgen -I
/Users/jyasskin/src/llvm-2.5/src/lib/VMCore -I
/Users/jyasskin/src/llvm-2.5/src/include -I
/Users/jyasskin/src/llvm-2.5/src/include -I
/Users/jyasskin/src/llvm-2.5/src/lib/Target
/Users/jyasskin/src/llvm-2.5/src/include/llvm/Intrinsics.td -o
/Users/jyasskin/src/llvm-2.5/obj/lib/VMCore/Debug/Intrinsics.gen.tmp
-gen-intrinsic
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008)
Copyright 2004 Free Software Foundation, Inc.
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This GDB was configured as "i386-apple-darwin"...Reading symbols for
shared libraries .... done
(gdb) run
Starting program: /Users/jyasskin/src/llvm-2.5/obj/Debug/bin/tblgen -I
/Users/jyasskin/src/llvm-2.5/src/lib/VMCore -I
/Users/jyasskin/src/llvm-2.5/src/include -I
/Users/jyasskin/src/llvm-2.5/src/include -I
/Users/jyasskin/src/llvm-2.5/src/lib/Target
/Users/jyasskin/src/llvm-2.5/src/include/llvm/Intrinsics.td -o
/Users/jyasskin/src/llvm-2.5/obj/lib/VMCore/Debug/Intrinsics.gen.tmp
-gen-intrinsic
Reading symbols for shared libraries +++.. done
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x0010eb75
0x963646e1 in __gnu_cxx::__exchange_and_add ()
(gdb) bt
#0 0x963646e1 in __gnu_cxx::__exchange_and_add ()
#1 0x96354070 in std::string::_Rep::_M_dispose ()
#2 0x963560a6 in std::string::assign ()
#3 0x000ecd67 in llvm:
:initializer<char
[2]>::apply<llvm::opt<std::string, false,
llvm::parser<std::string> > > (this=0xbfffdd5c, O=@0x17c200) at
CommandLine.h:281
#4 0x000ecdd4 in llvm::applicator<llvm::initializer<char [2]>
::opt<llvm::opt<std::string, false, llvm::parser<std::string>
> (M=@0xbfffdd5c, O=@0x17c200) at CommandLine.h:706
#5 0x000ecdee in llvm::apply<llvm::initializer<char [2]>,
llvm::opt<std::string, false, llvm::parser<std::string> > >
(M=@0xbfffdd5c, O=0x17c200) at CommandLine.h:742
#6 0x000ece85 in llvm::opt<std::string, false,
llvm::parser<std::string> >::opt<char [2], llvm::desc,
llvm::value_desc, llvm::initializer<char [2]> >
(this=0x17c200, M0=@0x10eb92, M1=@0xbfffdd64, M2=@0xbfffdd60,
M3=@0xbfffdd5c) at CommandLine.h:897
#7 0x0015d7be in __static_initialization_and_destruction_0
(__initialize_p=1, __priority=65535) at
/Users/jyasskin/src/llvm-2.5/src/utils/TableGen/TableGen.cpp:97
#8 0x0015d953 in global constructors keyed to
_ZN89_GLOBAL__N__Users_jyasskin_src_llvm_2.5_src_utils_TableGen_TableGen.cpp_00000000_BF75FF056ActionE
() at /Users/jyasskin/src/llvm-2.5/src/utils/TableGen/TableGen.cpp:236
#9 0x8fe12e76 in
__dyld__ZN16ImageLoaderMachO18doModInitFunctionsERKN11ImageLoader11LinkContextE
()
#10 0x8fe0e723 in
__dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEj
()
#11 0x8fe0e809 in
__dyld__ZN11ImageLoader15runInitializersERKNS_11LinkContextE ()
#12 0x8fe04102 in __dyld__ZN4dyld24initializeMainExecutableEv ()
#13 0x8fe07b5f in __dyld__ZN4dyld5_mainEPK11mach_headermiPPKcS5_S5_ ()
#14 0x8fe01872 in __dyld__ZN13dyldbootstrap5startEPK11mach_headeriPPKcl ()
#15 0x8fe01037 in __dyld__dyld_start ()
Oddly, I can't look at the contents of an opt<string> until I run
(gdb) add-symbol-file
/Users/jyasskin/src/llvm-2.5/obj/lib/Support/Debug/CommandLine.o
Then I get the following at the crash:
(gdb) f 3
(gdb) p O
$2 = (class llvm::opt<std::basic_string<char,
std::char_traits<char>, std::allocator<char>
,false,llvm::parser<std::basic_string<char,
std::char_traits<char>, std::allocator<char> > > > &) @0x17c200: {
<llvm::Option> = {
_vptr$Option = 0x15f2c8,
NumOccurrences = 0,
Flags = 33,
Position = 0,
AdditionalVals = 0,
NextRegistered = 0x0,
ArgStr = 0x10eb92 "o",
HelpStr = 0x10eb82 "Output filename",
ValueStr = 0x10eb79 "filename"
},
<llvm::opt_storage<std::basic_string<char,
std::char_traits<char>, std::allocator<char> >,false,true>> = {
<std::basic_string<char,std::char_traits<char>,std::allocator<char> >> = {
_M_dataplus = {
<std::allocator<char>> = {
<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No
data fields>},
members of
std::basic_string<char,std::char_traits<char>,std::allocator<char>
::_Alloc_hider:
_M_p = 0xa06ea6e4 ""
}
}, <No data fields>},
members of llvm::opt<std::basic_string<char,
std::char_traits<char>, std::allocator<char>
,false,llvm::parser<std::basic_string<char,
std::char_traits<char>, std::allocator<char> > > >:
Parser = {
<llvm::basic_parser<std::basic_string<char,
std::char_traits<char>, std::allocator<char> > >> = {
<llvm::basic_parser_impl> = {
_vptr$basic_parser_impl = 0x15ec58
}, <No data fields>}, <No data fields>}
}
This happens both with and without the binaries from
llvm-gcc4.2-2.5-x86-darwin9.tar.gz symlinked into my PATH. It also
happens in both release and debug builds.
$ gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5488)