I have a stacktrace problem with some, ahem,.. Fortran code.. (intel
compiler 8) on the Itanium and current CVS of GDB. The problem did not
exist on GDB 5.2.2 - this got the answer perfectly..
The code for this is included (should anyone wish to compile it.)
The issue is that the stacktrace just fails: shows the current stack and
then it's 0x00000000
(gdb) b def
Breakpoint 1 at 0x4000000000002e92: file myyuck.f90, line 8.
(gdb) r
Starting program: /home/david/a.out
Breakpoint 1, def (a=31.3402061) at myyuck.f90:8
8 END
Current language: auto; currently fortran
(gdb) bt
#0 def (a=31.3402061) at /home/david/myyuck.f90:8
#1 0x0000000000000000 in ?? ()
The code:
SUBROUTINE DEF(A)
REAL :: A
END
PROGRAM ABC
REAL A
CALL DEF(A)
END
The function def's disassembly is:
0x4000000000002e80 <def+0>: [MII] alloc r33=ar.pfs,4,4,0
0x4000000000002e81 <def+1>: adds r12=-176,r12
0x4000000000002e82 <def+2>: mov r34=r32;;
0x4000000000002e90 <def+16>: [MMI] adds r35=128,r12;;
0x4000000000002e91 <def+17>: st8 [r35]=r34
0x4000000000002e92 <def+18>: adds r12=176,r12
and the section around the call to def is:
0x4000000000002f20 <abc+96>: [MMI] adds r20=144,r12;;
0x4000000000002f21 <abc+97>: ld8 r34=[r20]
0x4000000000002f22 <abc+98>: nop.i 0x0;;
0x4000000000002f30 <abc+112>: [MII] mov r1=r34
0x4000000000002f31 <abc+113>: adds r35=128,r12
0x4000000000002f32 <abc+114>: nop.i 0x0;;
0x4000000000002f40 <abc+128>: [MIB] mov r36=r35
0x4000000000002f41 <abc+129>: nop.i 0x0
0x4000000000002f42 <abc+130>: br.call.sptk.many
b0=0x4000000000002e80 <def>;;
0x4000000000002f50 <abc+144>: [MMI] mov r34=1;;
0x4000000000002f51 <abc+145>: nop.m 0x0
0x4000000000002f52 <abc+146>: mov b0=r33;;
Any advice?