llvm dev - Dec 2006 - [LLVMdev] problem building gcc4 front end on fedora core 5

I'm getting a build error when trying to build gcc4 from sources. This is
for the recent 1.9 release.

How I built llvm-1.9:
-----------------------------
tar zxf llvm-1.9.tar.gz
cd llvm-1.9/
./configure --prefix=/custom/llvm-1.9
make ENABLE_OPTIMIZED=1 OPTIMIZE_OPTION='-O2' tools-only
make install

How I built gcc4:
-----------------------------
export PATH=/custom/llvm-1.9/bin:.../llvm-1.9/Release/bin:$PATH
tar zxf llvm-gcc4-1.9.source.tar.gz
mkdir llvm-gcc4-1.9.build
cd llvm-gcc4-1.9.build

../llvm-gcc4-1.9.source/configure --prefix=/custom/llvm-1.9-gcc4
--enable-languages=c,c++ --enable-checking --with-llvm=...../llvm-1.9
--disable-threads --program-prefix=llvm-

make

-------------------

This results in the following error:

/bulk/src/LLVM/llvm-gcc-build/gcc/xgcc
-B/bulk/src/LLVM/llvm-gcc-build/gcc/
-B/custom/llvm-1.9-gcc4/i686-pc-linux-gnu/bin/
-B/custom/llvm-1.9-gcc4/i686-pc-linux-gnu/lib/ -isystem
/custom/llvm-1.9-gcc4/i686-pc-linux-gnu/include -isystem
/custom/llvm-1.9-gcc4/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-gcc4-1.9.source/gcc
-I../../llvm-gcc4-1.9.source/gcc/.
-I../../llvm-gcc4-1.9.source/gcc/../include
-I../../llvm-gcc4-1.9.source/gcc/../libcpp/include  -DL_mulvdi3
-fvisibility=hidden -DHIDE_EXPORTS -c
../../llvm-gcc4-1.9.source/gcc/libgcc2.c -o libgcc/./_mulvdi3.o
../../llvm-gcc4-1.9.source/gcc/libgcc2.c:403: internal compiler error:
in prune_unused_types_update_strings, at dwarf2out.c:14372
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://llvm.org/bugs> for instructions.
make[2]: *** [libgcc/./_mulvdi3.o] Error 1
make[2]: Leaving directory `/bulk/src/LLVM/llvm-gcc-build/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/bulk/src/LLVM/llvm-gcc-build/gcc'
make: *** [all-gcc] Error 2


----------------------

Can anyone suggest some things I can do to figure out the source of the
problem?

Thanks for any info.
-Ram

Hi Ram,

On Sun, 2006-12-03 at 05:20 -0800, Ram Bhamidipaty
wrote:
> I'm getting a build error when trying to build gcc4 from sources. This
is
> for the recent 1.9 release.
> 
> How I built llvm-1.9:
> -----------------------------
> tar zxf llvm-1.9.tar.gz
> cd llvm-1.9/
> ./configure --prefix=/custom/llvm-1.9
> make ENABLE_OPTIMIZED=1 OPTIMIZE_OPTION='-O2' tools-only
> make install
Looks good.
> 
> How I built gcc4:
> -----------------------------
> export PATH=/custom/llvm-1.9/bin:.../llvm-1.9/Release/bin:$PATH
Note that you're putting both the built and the installed executables in
the path here. Probably isn't a problem, but not many of us do that.
> tar zxf llvm-gcc4-1.9.source.tar.gz
> mkdir llvm-gcc4-1.9.build
> cd llvm-gcc4-1.9.build
> 
> ../llvm-gcc4-1.9.source/configure --prefix=/custom/llvm-1.9-gcc4
> --enable-languages=c,c++ --enable-checking --with-llvm=...../llvm-1.9
> --disable-threads --program-prefix=llvm-
Try --disable-shared. Sometimes linking the wrong libgcc.so or libstdc
++.so can produce the error you got below.
> 
> make
> 
> -------------------
> 
> This results in the following error:
> 
> /bulk/src/LLVM/llvm-gcc-build/gcc/xgcc
> -B/bulk/src/LLVM/llvm-gcc-build/gcc/
> -B/custom/llvm-1.9-gcc4/i686-pc-linux-gnu/bin/
> -B/custom/llvm-1.9-gcc4/i686-pc-linux-gnu/lib/ -isystem
> /custom/llvm-1.9-gcc4/i686-pc-linux-gnu/include -isystem
> /custom/llvm-1.9-gcc4/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-gcc4-1.9.source/gcc
> -I../../llvm-gcc4-1.9.source/gcc/.
> -I../../llvm-gcc4-1.9.source/gcc/../include
> -I../../llvm-gcc4-1.9.source/gcc/../libcpp/include  -DL_mulvdi3
> -fvisibility=hidden -DHIDE_EXPORTS -c
> ../../llvm-gcc4-1.9.source/gcc/libgcc2.c -o libgcc/./_mulvdi3.o
> ../../llvm-gcc4-1.9.source/gcc/libgcc2.c:403: internal compiler error:
> in prune_unused_types_update_strings, at dwarf2out.c:14372
Not sure what the problem is but this is failing very early. mulvdi3.o
is one of the first things built in the libgcc library. The xgcc
compiler is really llvm-gcc4. We won't be able to do much on this
without a backtrace. To get one, please do the following:

1. Run the xgcc command above with the -v option.
2. Capture the cc1 command options that xgcc spawns. 
3. gdb the cc1 and run it with the options captured in step 2
4. When it fails, type "where" and capture the output
5. Open a bug report at http://llvm.org/bugs/ and attach this message
and the backtrace.

Reid.
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://llvm.org/bugs> for instructions.
> make[2]: *** [libgcc/./_mulvdi3.o] Error 1
> make[2]: Leaving directory `/bulk/src/LLVM/llvm-gcc-build/gcc'
> make[1]: *** [libgcc.a] Error 2
> make[1]: Leaving directory `/bulk/src/LLVM/llvm-gcc-build/gcc'
> make: *** [all-gcc] Error 2
> 
> 
> ----------------------
> 
> Can anyone suggest some things I can do to figure out the source of the
> problem?
> 
> Thanks for any info.
> -Ram
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

There was a patch that went thru for this recently from Rafael  
Espindola.  The fix is on the mirror.

Index: gcc/dwarf2out.c
==================================================================---
gcc/dwarf2out.c	(revision 120589)
+++ gcc/dwarf2out.c	(working copy)
@@ -14361,9 +14361,8 @@
	s->refcount++;
	/* Avoid unnecessarily putting strings that are used less than
	   twice in the hash table.  */
-	if (s->refcount == 2
-	    || (s->refcount == 1
-		&& (DEBUG_STR_SECTION_FLAGS & SECTION_MERGE) != 0))
+	if (s->refcount
+	    == ((DEBUG_STR_SECTION_FLAGS & SECTION_MERGE) ? 1 : 2))
	  {
	    void ** slot;
	    slot = htab_find_slot_with_hash (debug_str_hash, s->str,

Cheers,

-- Jim


On Dec 3, 2006, at 9:20 AM, Ram Bhamidipaty wrote:
> ../../llvm-gcc4-1.9.source/gcc/libgcc2.c -o libgcc/./_mulvdi3.o
> ../../llvm-gcc4-1.9.source/gcc/libgcc2.c:403: internal compiler error:
> in prune_unused_types_update_strings, at dwarf2out.c:14372
> Please submit a full bug report,
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Thank you!

This did the trick.

-Ram


On 12/3/06, Jim Laskey <jlaskey at apple.com>
wrote:
> There was a patch that went thru for this recently from Rafael Espindola.
> The fix is on the mirror.
>
> Index: gcc/dwarf2out.c
> ==================================================================> ---
gcc/dwarf2out.c (revision 120589)
> +++ gcc/dwarf2out.c (working copy)
> @@ -14361,9 +14361,8 @@
>  s->refcount++;
>  /* Avoid unnecessarily putting strings that are used less than
>     twice in the hash table.  */
> - if (s->refcount == 2
> -     || (s->refcount == 1
> - && (DEBUG_STR_SECTION_FLAGS & SECTION_MERGE) != 0))
> + if (s->refcount
> +     == ((DEBUG_STR_SECTION_FLAGS & SECTION_MERGE) ? 1 : 2))
>    {
>      void ** slot;
>      slot = htab_find_slot_with_hash (debug_str_hash, s->str,
>
> Cheers,
>
> -- Jim
>
>
>
> On Dec 3, 2006, at 9:20 AM, Ram Bhamidipaty wrote:
>
>
> ../../llvm-gcc4-1.9.source/gcc/libgcc2.c -o libgcc/./_mulvdi3.o
>
> ../../llvm-gcc4-1.9.source/gcc/libgcc2.c:403: internal compiler error:
>
> in prune_unused_types_update_strings, at dwarf2out.c:14372
>
> Please submit a full bug report,
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>
>
>