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Reid,<br>

<br>

Here's the backtrace you asked for:<br>

<br>

(gdb) bt<br>

#0  0x0862d65c in llvm::LiveVariables::runOnMachineFunction ()<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., eax) at 0x862d18c.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ecx) at 0x862d18c.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., edx) at 0x862d18c.<br>

#1  0x083d0339 in llvm::MachineFunctionPass::runOnFunction ()<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., eax) at 0x83d031f.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ecx) at 0x83d031f.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., edx) at 0x83d031f.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ebp) at 0x83d031f.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., edi) at 0x83d031f.<br>

#2  0x086fb4d7 in llvm::FunctionPassManagerT::runPass ()<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., eax) at 0x86fb4c3.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ecx) at 0x86fb4c3.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., edx) at 0x86fb4c3.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ebx) at 0x86fb4c3.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ebp) at 0x86fb4c3.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., esi) at 0x86fb4c3.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., edi) at 0x86fb4c3.<br>

#3  0x087033f8 in llvm::PassManagerT<llvm::FTraits>::runPasses ()<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., eax) at 0x870312c.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ecx) at 0x870312c.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., edx) at 0x870312c.<br>

#4  0x0870412f in llvm::PassManagerT<llvm::FTraits>::runOnUnit ()<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., eax) at 0x8703daa.<br>

During symbol reading, incomplete CFI data; unspecified registers

(e.g., ecx) at 0x8703daa.<br>

#5  0x086fb59b in llvm::FunctionPassManagerT::runOnFunction ()<br>

#6  0x086f6fb9 in llvm::FunctionPass::runOnModule ()<br>

#7  0x086fb547 in llvm::ModulePassManager::runPass ()<br>

#8  0x08702329 in llvm::PassManagerT<llvm::MTraits>::runPasses ()<br>

#9  0x0870300f in llvm::PassManagerT<llvm::MTraits>::runOnUnit ()<br>

#10 0x086f65eb in llvm::ModulePassManager::runOnModule ()<br>

#11 0x086f6659 in llvm::PassManager::run ()<br>

#12 0x08256a93 in llvm_asm_file_end ()<br>

    at ../../llvm-gcc4-1.8-source/gcc/llvm-backend.cpp:277<br>

#13 0x0823bc40 in toplev_main (argc=47, argv=0xbff80804)<br>

    at ../../llvm-gcc4-1.8-source/gcc/toplev.c:1171<br>

#14 0x08096ad2 in main (argc=-1209859528, argv=0xb7e30240)<br>

    at ../../llvm-gcc4-1.8-source/gcc/llvm-main.cpp:37<br>

<br>

The command looked like this in gdb when it failed:<br>

<br>

(gdb) file cc1<br>

Reading symbols from /home/mykland/llvm-gcc/obj/gcc/cc1...done.<br>

Using host libthread_db library "/lib/libthread_db.so.1".<br>

(gdb) run -quiet -v -I. -I. -I../../llvm-gcc4-1.8-source/gcc

-I../../llvm-gcc4-1.8-source/gcc/.

-I../../llvm-gcc4-1.8-source/gcc/../include

-I../../llvm-gcc4-1.8-source/gcc/../libcpp/include

-I/home/mykland/llvm/include -I/home/mykland/llvm/include -iprefix

/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/

-isystem /home/mykland/llvm-gcc/obj/gcc/include -DIN_GCC -DIN_LIBGCC2

-D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -DHIDE_EXPORTS -isystem

/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include

-isystem

/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include

-isystem ./include ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -quiet

-dumpbase libgcc2.c -mtune=pentiumpro -auxbase-strip libgcc/./_muldi3.o

-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes

-Wmissing-prototypes -Wold-style-definition -version -fPIC

-fvisibility=hidden -o /tmp/ccaIovPB.s -v<br>

Starting program: /home/mykland/llvm-gcc/obj/gcc/cc1 -quiet -v -I. -I.

-I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/.

-I../../llvm-gcc4-1.8-source/gcc/../include

-I../../llvm-gcc4-1.8-source/gcc/../libcpp/include

-I/home/mykland/llvm/include -I/home/mykland/llvm/include -iprefix

/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/

-isystem /home/mykland/llvm-gcc/obj/gcc/include -DIN_GCC -DIN_LIBGCC2

-D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -DHIDE_EXPORTS -isystem

/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include

-isystem

/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include

-isystem ./include ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -quiet

-dumpbase libgcc2.c -mtune=pentiumpro -auxbase-strip libgcc/./_muldi3.o

-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes

-Wmissing-prototypes -Wold-style-definition -version -fPIC

-fvisibility=hidden -o /tmp/ccaIovPB.s -v<br>

[Thread debugging using libthread_db enabled]<br>

[New Thread -1211050320 (LWP 4569)]<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include"<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include"<br>

ignoring duplicate directory "./include"<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/include"<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//include"<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/include"<br>

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"<br>

ignoring duplicate directory "."<br>

ignoring duplicate directory "../../llvm-gcc4-1.8-source/gcc/."<br>

ignoring duplicate directory "/home/mykland/llvm/include"<br>

#include "..." search starts here:<br>

#include <...> search starts here:<br>

 .<br>

 ../../llvm-gcc4-1.8-source/gcc<br>

 ../../llvm-gcc4-1.8-source/gcc/../include<br>

 ../../llvm-gcc4-1.8-source/gcc/../libcpp/include<br>

 /home/mykland/llvm/include<br>

 /home/mykland/llvm-gcc/obj/gcc/include<br>

 /usr/local/include<br>

 /usr/include<br>

End of search list.<br>

GNU C version 4.0.1 LLVM (Apple Computer, Inc. build 5400)

(i686-pc-linux-gnu)<br>

        compiled by GNU C version 4.1.0 (SUSE Linux).<br>

GGC heuristics: --param ggc-min-expand=99 --param

ggc-min-heapsize=129349<br>

Compiler executable checksum: b890601e6422e9101b52d960e6263283<br>

<br>

Program received signal SIGSEGV, Segmentation fault.<br>

[Switching to Thread -1211050320 (LWP 4569)]<br>

0x0862d65c in llvm::LiveVariables::runOnMachineFunction ()<br>

<br>

-- Robert.<br>

<br>

Reid Spencer wrote:

<blockquote cite="mid1162840634.30912.21.camel@bashful.x10sys.com"

 type="cite">

  <pre wrap="">This is an libpath problem.  When xgcc runs it wants to dynamically link

the libgcc.so. When you run it from the command line it will find your

system libgcc.so (which works) and so you don't see the segfault.  When

you run xgcc from the Makefile, it will have set LD_LIBRARY_PATH to get

your <cfebuilddir>/gcc directory which will find the libgcc.so that it

just built, which is the one that is segfaulting.  To fix this, do the

following:

LD_LIBRARY_PATH=<cfebuilddir>/gcc <insert xgcc command line here>

Then it will run xgcc so that it will find the new (buggy) libgcc.so

Hopefully that will reproduce the problem and you can then get a stack

trace from cc1

Reid.

On Mon, 2006-11-06 at 10:45 -0800, Robert Mykland wrote:

  </pre>

  <blockquote type="cite">

    <pre wrap="">Reid,

I followed the steps but got stuck as described below:

Reid Spencer wrote: 

    </pre>

    <blockquote type="cite">

      <pre wrap="">Hi Robert,

Please make sure that you:

1. Completely rebuild LLVM (make clean; make reconfigure; make

tools-only)

      </pre>

    </blockquote>

    <pre wrap="">This all worked great.

    </pre>

    <blockquote type="cite">

      <pre wrap="">2. Completely rebuild llvm-gcc (wipe out the build dir with rm -rf,

configure llvm-gcc 

   and rebuild it)

      </pre>

    </blockquote>

    <pre wrap="">Okay, got the same error as before.

    </pre>

    <blockquote type="cite">

      <pre wrap="">If you've done that, then please enter the debugger and get a stack

trace for us. 

You will need to:

1. Capture the xgcc compile command that failed

      </pre>

    </blockquote>

    <pre wrap="">I captured this command and it is:

/home/mykland/llvm-gcc/obj/gcc/xgcc -B/home/mykland/llvm-gcc/obj/gcc/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/

-isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o

My problem is that when I rerun the command it doesn't fail in the

same way.  Several things can't be found anymore.  The first time the

command runs inside the makefile environment the messages look like

this:

/home/mykland/llvm-gcc/obj/gcc/xgcc -B/home/mykland/llvm-gcc/obj/gcc/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/

-isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:541: internal compiler error:

Segmentation fault

Please submit a full bug report,

with preprocessed source if appropriate.

See <a class="moz-txt-link-rfc1738" href="http://llvm.org/bugs"><URL:http://llvm.org/bugs></a> for instructions.

make[2]: *** [libgcc/./_muldi3.o] Error 1

make[2]: Leaving directory `/home/mykland/llvm-gcc/obj/gcc'

make[1]: *** [libgcc.a] Error 2

make[1]: Leaving directory `/home/mykland/llvm-gcc/obj/gcc'

make: *** [all-gcc] Error 2

Afterwards, when I run it on the command line after the make has

failed the error messages look like this:

mykland@ascenium:~/llvm-gcc/obj> /home/mykland/llvm-gcc/obj/gcc/xgcc

-B/home/mykland/llvm-gcc/obj/gcc/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/

-isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:35:23: error: auto-host.h: No

such file or directory

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:40:21: error: tconfig.h: No

such file or directory

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:43:16: error: tm.h: No such

file or directory

In file included from ../../llvm-gcc4-1.8-source/gcc/libgcc2.c:64:

../../llvm-gcc4-1.8-source/gcc/libgcc2.h:214:3: error: #error "expand

the table"../../llvm-gcc4-1.8-source/gcc/libgcc2.c: In function

‘__mulhi3’:

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: ‘BITS_PER_UNIT’

undeclared (first use in this function)

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: (Each undeclared

identifier is reported only once

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:535: error: for each function

it appears in.)

...or with the -v command added they look like this:

mykland@ascenium:~/llvm-gcc/obj> /home/mykland/llvm-gcc/obj/gcc/xgcc

-B/home/mykland/llvm-gcc/obj/gcc/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/bin/

-B/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/lib/

-isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -O2  -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/. -I../../llvm-gcc4-1.8-source/gcc/../include -I../../llvm-gcc4-1.8-source/gcc/../libcpp/include  -I/home/mykland/llvm/include -I/home/mykland/llvm/include -DL_muldi3 -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -o libgcc/./_muldi3.o -v

Reading specs from /home/mykland/llvm-gcc/obj/gcc/specs

Target: i686-pc-linux-gnu

Configured with: ../llvm-gcc4-1.8-source/configure

--prefix=/home/mykland/llvm-gcc/obj/../install/

--enable-llvm=/home/mykland/llvm --enable-languages=c,c++

--disable-threads

Thread model: single

gcc version 4.0.1 LLVM (Apple Computer, Inc. build 5400)

 /home/mykland/llvm-gcc/obj/gcc/cc1 -quiet -v -I. -I.

-I../../llvm-gcc4-1.8-source/gcc -I../../llvm-gcc4-1.8-source/gcc/.

-I../../llvm-gcc4-1.8-source/gcc/../include

-I../../llvm-gcc4-1.8-source/gcc/../libcpp/include

-I/home/mykland/llvm/include -I/home/mykland/llvm/include

-iprefix /home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/ -isystem /home/mykland/llvm-gcc/obj/gcc/include -DIN_GCC -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -DHIDE_EXPORTS -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include -isystem /home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include -isystem ./include ../../llvm-gcc4-1.8-source/gcc/libgcc2.c -quiet -dumpbase libgcc2.c -mtune=pentiumpro -auxbase-strip libgcc/./_muldi3.o -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -version -fPIC -fvisibility=hidden -o /tmp/ccsulgFx.s

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/include"

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//i686-pc-linux-gnu/sys-include"

ignoring nonexistent directory "./include"

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/include"

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/gcc/../lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//include"

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/include"

ignoring nonexistent directory

"/home/mykland/llvm-gcc/obj/../install//lib/gcc/i686-pc-linux-gnu/4.0.1/../../../../i686-pc-linux-gnu/include"

ignoring duplicate directory "."

ignoring duplicate directory "../../llvm-gcc4-1.8-source/gcc/."

ignoring duplicate directory "/home/mykland/llvm/include"

#include "..." search starts here:

#include <...> search starts here:

 .

 ../../llvm-gcc4-1.8-source/gcc

 ../../llvm-gcc4-1.8-source/gcc/../include

 ../../llvm-gcc4-1.8-source/gcc/../libcpp/include

 /home/mykland/llvm/include

 /home/mykland/llvm-gcc/obj/gcc/include

 /usr/local/include

 /usr/include

End of search list.

GNU C version 4.0.1 LLVM (Apple Computer, Inc. build 5400)

(i686-pc-linux-gnu)

        compiled by GNU C version 4.1.0 (SUSE Linux).

GGC heuristics: --param ggc-min-expand=99 --param

ggc-min-heapsize=129349

Compiler executable checksum: b890601e6422e9101b52d960e6263283

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:35:23: error: auto-host.h: No

such file or directory

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:40:21: error: tconfig.h: No

such file or directory

../../llvm-gcc4-1.8-source/gcc/libgcc2.c:43:16: error: tm.h: No such

file or directory