Re: [RFA] new command: 'maintenance info lines'

[Josef Ezra <jezra@emc.com>]

Fernando Nasser wrote:

> The maintenance commands are to be used to debug (or test) GDB only.
> We could say you'd be dumping the line table but that is hardly what 
> is being done and we don't have a real need for that anyway.
>
well, WE have a real need for this command (is there a wrong way to use 
gdb?). but we sure don't need it to maintain gdb.

> If you really want to use a CLI command, you need to add a set/show 
> variable to request that the source lines are included in the 
> 'disassemble' command output. 

do you mean something like:

(gdb) set  disassem dump-source-or-something 1
(gdb) disassemble main
Dump of assembler code for function main:
    Line ../gdb/main.c:757
0x50ce4 <main>: save  %sp, -120, %sp
0x50ce8 <main+4>:       std  %i0, [ %fp + -24 ]
0x50cec <main+8>:       sethi  %hi(0x50000), %o0
0x50cf0 <main+12>:      or  %o0, 0x16c, %o0     ! 0x5016c <captured_main>
0x50cf4 <main+16>:      sethi  %hi(0x2a7c00), %o2
    Line ../gdb/main.c:759
0x50cf8 <main+20>:      add  %fp, -24, %o1
0x50cfc <main+24>:      or  %o2, 0x3c0, %o2
0x50d00 <main+28>:      call  0xb2374 <catch_errors>
0x50d04 <main+32>:      mov  6, %o3
    Line ../gdb/main.c:775
0x50d08 <main+36>:      ret
0x50d0c <main+40>:      restore  %g0, 0, %o0
End of assembler dump.

that would be a great solution for our needs. how about setting the 
dump-source to 1 to show line location, and 2 to try presenting the 
actual source lines (like mixed list and disassemble)

> The newer disassembler code that handles mixed output is still in the 
> MI subdirectory (and in an older form in the gdbtk subdir) but it is 
> intended to replace the one in printcmd.c.  It shouldn't be too 
> difficult and you can always ask if you have any doubts. 

?? please explain

thanks - jezra