[Bug symtab/29236] wrong mapping between address and source line

["ssbssa at sourceware dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=29236

Hannes Domani <ssbssa at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ssbssa at sourceware dot org

--- Comment #2 from Hannes Domani <ssbssa at sourceware dot org> ---
As far as I can tell this is part of gdb's magic to make debugging of inline
functions easier to follow.

I've different addresses, but I get a similar result:
```
(gdb) s
13        access (pa);
(gdb) bt -frame-info location-and-address
#0  0x000000013f96253e in main (argc=<optimized out>, argv=<optimized out>) at
gdb-29236.c:13
(gdb) maint info line-table gdb-29236.c
INDEX  LINE   REL-ADDRESS        UNREL-ADDRESS      IS-STMT PROLOGUE-END
...
12     4      0x000000013f96253e 0x000000014000253e
```

And then, I step again:
```
(gdb) s
0x000000013f96253e in access (ptr=<optimized out>) at gdb-29236.c:4
4       void access (volatile char *ptr) { *ptr = 'x'; }
(gdb) bt -frame-info location-and-address
#0  0x000000013f96253e in access (ptr=<optimized out>) at gdb-29236.c:4
#1  0x000000013f96253e in main (argc=<optimized out>, argv=<optimized out>) at
gdb-29236.c:13
```

The address stays the same, so gdb didn't really step, but just faked this for
the user.

-- 
You are receiving this mail because:
You are on the CC list for the bug.