FW: Fortran Compiler Hangs

["Iyer, Balaji V" <balaji dot v dot iyer at intel dot com>]

Hello Everyone,
	Sorry for the repost, but when I downloaded  the trunk, then configured with just the prefix option in the build directory and tried to compile it (both make and make -j8), the Fortran compiler seem to hang. I am not using the Fortran compiler, but the build script seem to hang at this spot:

checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for x86_64-unknown-linux-gnu-gfortran... /export/users/gcc-work/b-gcc.git/./gcc/gfortran -B/export/users/gcc-work/b-gcc.git/./gcc/ -B/export/users/gcc-work/install-gcc.git/x86_64-unknown-linux-gnu/bin/ -B/export/users/gcc-work/install-gcc.git/x86_64-unknown-linux-gnu/lib/ -isystem /export/users/gcc-work/install-gcc.git/x86_64-unknown-linux-gnu/include -isystem /export/users/gcc-work/install-gcc.git/x86_64-unknown-linux-gnu/sys-include
checking whether we are using the GNU Fortran compiler...


I have tried it on SuSE and uBuntu and the result seem to be the same.

I tried a small "Hello World" program with f951 and that seem to hang too. My experience with Fortran and gfortran is very limited (almost none), so I am sorry I can't provide more information.

> Here is the test program:
> 
>        PRINT *, 'Hello, world!'
>        END

Then I tried to debug it and here is the backtrace:

> (gdb) bt
> #0  0x0000000000ece7f1 in __gmpn_mul_1 ()
> #1  0x0000000000ed540b in __gmpn_mul_basecase ()
> #2  0x0000000000ed3c2f in __gmpn_kara_mul_n ()
> #3  0x0000000000ed40df in __gmpn_kara_mul_n ()
> #4  0x0000000000ed4bd5 in __gmpn_toom3_mul_n ()
> #5  0x0000000000ed52ac in __gmpn_mul_n ()
> #6  0x0000000000ed011f in __gmpn_mul ()
> #7  0x0000000000edd4e4 in __gmpn_toom22_mul ()
> #8  0x0000000000eded73 in __gmpn_toom32_mul ()
> #9  0x0000000000ed0080 in __gmpn_mul ()
> #10 0x0000000000ec9cd3 in __gmpz_mul ()
> #11 0x0000000000ea2fb1 in S ()
> #12 0x0000000000ea2f95 in S ()
> #13 0x0000000000ea2f6b in S ()
> #14 0x0000000000ea2f95 in S ()
> #15 0x0000000000ea2f6b in S ()
> #16 0x0000000000ea2f6b in S ()
> #17 0x0000000000ea2f95 in S ()
> #18 0x0000000000ea2f6b in S ()
> #19 0x0000000000ea2f6b in S ()
> #20 0x0000000000ea326b in mpfr_const_log2_internal ()
> #21 0x0000000000eb98af in mpfr_cache ()
> #22 0x0000000000ea36eb in mpfr_log ()
> #23 0x0000000000eb3165 in mpfr_log10 ()
> #24 0x000000000051d2af in gfc_arith_init_1() ()
> #25 0x0000000000576463 in gfc_init_1() ()
> #26 0x00000000005c5bb3 in gfc_init() ()
> #27 0x000000000097d8b7 in toplev_main(int, char**) ()
> #28 0x00007ffff7644bc6 in __libc_start_main () from /lib64/libc.so.6
> #29 0x000000000051bb41 in _start () at ../sysdeps/x86_64/elf/start.S:113

Any help is greatly appreciated!

Sincerely,

Balaji V. Iyer.


P.S. I downloaded GMP, MPFR and MPC using ./contrib/download_prerequisites.


> -----Original Message-----
> From: Iyer, Balaji V
> Sent: Monday, April 29, 2013 3:00 PM
> To: 'gcc@gcc.gnu.org'
> Cc: 'Tobias Burnus (burnus@net-b.de)'
> Subject: Fortran Compiler Hangs
> 
> Hello Everyone,
> 	The fortran compiler  (f951) seem to hang even for a simple hello world
> program in GCC. This is causing the whole gcc build process to hang at the
> following line:
> 
> 
> I tried a small hello world program and it was also hanging. I tried to gdb it and
> here is the backtrace. My current revision is at r198424. My previous revision
> was at r198143 and I believe things were working fine there.
> 
> Here is the test program:
> 
>        PRINT *, 'Hello, world!'
>        END
> 
> Here is the back trace:
> (gdb) bt
> #0  0x0000000000ece7f1 in __gmpn_mul_1 ()
> #1  0x0000000000ed540b in __gmpn_mul_basecase ()
> #2  0x0000000000ed3c2f in __gmpn_kara_mul_n ()
> #3  0x0000000000ed40df in __gmpn_kara_mul_n ()
> #4  0x0000000000ed4bd5 in __gmpn_toom3_mul_n ()
> #5  0x0000000000ed52ac in __gmpn_mul_n ()
> #6  0x0000000000ed011f in __gmpn_mul ()
> #7  0x0000000000edd4e4 in __gmpn_toom22_mul ()
> #8  0x0000000000eded73 in __gmpn_toom32_mul ()
> #9  0x0000000000ed0080 in __gmpn_mul ()
> #10 0x0000000000ec9cd3 in __gmpz_mul ()
> #11 0x0000000000ea2fb1 in S ()
> #12 0x0000000000ea2f95 in S ()
> #13 0x0000000000ea2f6b in S ()
> #14 0x0000000000ea2f95 in S ()
> #15 0x0000000000ea2f6b in S ()
> #16 0x0000000000ea2f6b in S ()
> #17 0x0000000000ea2f95 in S ()
> #18 0x0000000000ea2f6b in S ()
> #19 0x0000000000ea2f6b in S ()
> #20 0x0000000000ea326b in mpfr_const_log2_internal ()
> #21 0x0000000000eb98af in mpfr_cache ()
> #22 0x0000000000ea36eb in mpfr_log ()
> #23 0x0000000000eb3165 in mpfr_log10 ()
> #24 0x000000000051d2af in gfc_arith_init_1() ()
> #25 0x0000000000576463 in gfc_init_1() ()
> #26 0x00000000005c5bb3 in gfc_init() ()
> #27 0x000000000097d8b7 in toplev_main(int, char**) ()
> #28 0x00007ffff7644bc6 in __libc_start_main () from /lib64/libc.so.6
> #29 0x000000000051bb41 in _start () at ../sysdeps/x86_64/elf/start.S:113
> 
> Thanks,
> 
> Balaji V. Iyer.