When compiling the following code with gfortran
(gcc version 4.0.2 20051125 (Red Hat 4.0.2-8)) it is afterwards not possible
to set a breakpoint on specific lines in the code:
$ cat main.F
PROGRAM Test
IMPLICIT NONE
WRITE(*,*) 'Hello World'
END
$ gfortran -g -save-temps main.F -o main
$ gdb main
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This GDB was configured as "i386-redhat-linux-gnu"...Using host libthread_db
library "/lib/libthread_db.so.1".
(gdb) l
1 # 1 "main.F"
2 # 1 "/home/taschna/gdbtest//"
3 # 1 "<built-in>"
4 # 1 "<command line>"
5 # 1 "main.F"
6 PROGRAM Test
7 IMPLICIT NONE
8
9 WRITE(*,*) 'Hello World'
10
(gdb) b 9
No line 9 in file "main.f".
According to the comments in the gdb bug database to bug fortran/2048
<http://sources.redhat.com/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=2048>
this is a bug in gfortran, because
the DW_TAG_compile_unit is set to 'main.f' which is a temporary file
created by the compiler and therefore "should not be mentioned in
debugging information".
--
Summary: Wrong DW_TAG_compile_unit generated when compiling
preprocessed fortran code
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: taschna at uni-muenster dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25324
