All attempts to run code compiled with gfortran fail if there is a floating
point print. This seems to be
due to a floating point underflow exception being invoked.
cat test.f
program test
real a
a = 10.0
print *,a
stop
end
gdb stack trace follows:
(gdb) run
Starting program: /Users/charlesb/a.out
Reading symbols for shared libraries .++ done
Program received signal EXC_ARITHMETIC, Arithmetic exception.
0x900e5158 in __gdtoa ()
(gdb) where
#0 0x900e5158 in __gdtoa ()
#1 0x900e47f8 in __ldtoa ()
#2 0x9000c947 in __vfprintf ()
#3 0x9000baf0 in sprintf ()
#4 0x0024d968 in output_float (dtp=0xbfffefb0, f=0x400390, value=10) at
../../../gcc-4.1.0/
libgfortran/io/write.c:472
#5 0x0024e597 in write_float (dtp=0xbfffefb0, f=0xbfffef08, source=0x3ff40000
<Address
0x3ff40000 out of bounds>, len=4) at
../../../gcc-4.1.0/libgfortran/io/write.c:898
#6 0x0024e6a9 in write_real (dtp=0xbfffefb0, source=0xbfffe368 "",
length=1072955392) at ../../../
gcc-4.1.0/libgfortran/io/write.c:1390
#7 0x0024f06d in *__gfortrani_list_formatted_write (dtp=0xbfffefb0,
type=BT_REAL, p=0xbffff0c0,
kind=4, size=4, nelems=1) at ../../../gcc-4.1.0/libgfortran/io/write.c:1460
#8 0x002486f0 in *__gfortran_transfer_real (dtp=0xbfffefb0, p=0xbffff0c0,
kind=4) at ../../../
gcc-4.1.0/libgfortran/io/transfer.c:1079
#9 0x00001ebb in MAIN__ () at test.f:4
#10 0x00001efc in main (argc=-1073745608, argv=0x1de6) at
../../../gcc-4.1.0/libgfortran/fmain.c:
18
Specs of compiler version:
Using built-in specs.
Target: i386-apple-darwin8.5.1
Configured with: ../gcc-4.1.0/configure --enable-languages=c,c++,fortran,java
Thread model: posix
gcc version 4.1.0
--
Summary: gfortran on mac intel runtime floating point exception
when printing
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libfortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ccb at dl dot ac dot uk
GCC build triplet: i386-apple-darwin8.5.1
GCC host triplet: i386-apple-darwin8.5.1
GCC target triplet: i386-apple-darwin8.5.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26712
