[Bug fortran/67696] New: libbacktrace prints C++ demangled name for Fortran symbol

[Bug fortran/67696] New: libbacktrace prints C++ demangled name for Fortran symbol

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67696

            Bug ID: 67696
           Summary: libbacktrace prints C++ demangled name for Fortran
                    symbol
           Product: gcc
           Version: 5.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Joost.VandeVondele at mat dot ethz.ch
  Target Milestone: ---

The backtrace printed on abort can contain demangled names, instead of the
Fortran symbols. In the example below, cp__b becomes cp(bool) :

> cat test.f90
MODULE foo
CONTAINS
  SUBROUTINE cp__b()
     CALL ABORT()
  END SUBROUTINE
END MODULE 

PROGRAM test
USE foo
CALL cp__b()
END PROGRAM

> gfortran -g test.f90 ; ./a.out

Program aborted. Backtrace:
#0  0x7FE4810C6B87
#1  0x7FE4810C79C2
#2  0x7FE481198538
#3  0x4006A3 in __foo_MOD_cp(bool) at test.f90:4
#4  0x4006AC in test at test.f90:10
Aborted

I actually notice the same wrong name is printed if a backtrace is asked in
gdb:

(gdb) bt
#0  0x0000003ba4a32625 in raise () from /lib64/libc.so.6
#1  0x0000003ba4a33e05 in abort () from /lib64/libc.so.6
#2  0x00007ffff7cf99a9 in _gfortrani_sys_abort () at
/data/vjoost/toolchain-r15694/build/gcc-5.2.0/libgfortran/runtime/error.c:180
#3  0x00007ffff7dca539 in _gfortran_abort () at
/data/vjoost/toolchain-r15694/build/gcc-5.2.0/libgfortran/intrinsics/abort.c:33
#4  0x00000000004006a4 in __foo_MOD_cp(bool) ()
#5  0x00000000004006ad in MAIN__ ()
#6  0x00000000004006e4 in main ()
#7  0x0000003ba4a1ed5d in __libc_start_main () from /lib64/libc.so.6
#8  0x00000000004005a9 in _start ()

[Bug fortran/67696] libbacktrace prints C++ demangled name for Fortran symbol

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67696

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2015-10-13
     Ever confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
On x86_64-apple-darwin14 with lldb I get

    frame #5: 0x0000000100000e95 a.out`__foo_MOD_cp__b + 14 at pr67696.f90:4
    frame #6: 0x0000000100000e9e a.out`test + 9 at pr67696.f90:10
    frame #7: 0x0000000100000ed7 a.out`main(argc=1,
argv="/Users/dominiq/Documents/Fortran/g95bench/win/f90/bug/a.out") + 54 at
pr67696.f90:9

and with gdb

#5  0x0000000100000e95 in cp__b () at pr67696.f90:4
#6  0x0000000100000e9e in test () at pr67696.f90:10
#7  0x0000000100000ed7 in main (argc=1, argv=0x7fff5fbff5b0) at pr67696.f90:9

[Bug fortran/67696] libbacktrace prints C++ demangled name for Fortran symbol

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67696

Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-unknown-linux-gnu
             Status|WAITING                     |UNCONFIRMED
                 CC|                            |Joost.VandeVondele at mat dot ethz
                   |                            |.ch
     Ever confirmed|1                           |0

--- Comment #2 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
so seemingly target specific ?

[Bug fortran/67696] libbacktrace prints C++ demangled name for Fortran symbol

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67696

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|2015-10-13 00:00:00         |2015-10-14
     Ever confirmed|0                           |1

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> so seemingly target specific ?

I forgot to say that backtrace is useless on darwin, so I got may results with
gdb 7.10 and lldb 340.4.70/

[Bug fortran/67696] libbacktrace prints C++ demangled name for Fortran symbol

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67696

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
s/may/my/