Re: large line number debugging support

[Paolo Molaro <lupus@ximian.com>]

On 12/15/01 Daniel Berlin wrote:
> > How does dwarf2 go with this?  ``gas -gdwarf2'' will select dwarf2
> > assembler debug info.
> 
> DWARF2 can do line numbers as large as you like, the opcodes take leb128
> or sleb128, as opposed to some fixed size encoding.

Uhm, still no luck:

$ cat test-stabs.s
.stabs "corlib.il",100,0,0,0
.stabs "Void:t(0,1)=(0,1)",128,0,0,0
.stabs "myfunc:F(0,1)",36,0,70000,0x0
.stabs "",36,0,0,204

$ as -gdwarf2 test-stabs.s -o test-stabs.o
$ objdump -G test-stabs.o

test-stabs.o:     file format elf32-i386

Contents of .stab section:

Symnum n_type n_othr n_desc n_value  n_strx String

-1     HdrSym 0      4      00000038 1     
0      SO     0      0      00000000 14     corlib.il
1      LSYM   0      0      00000000 24     Void:t(0,1)=(0,1)
2      FUN    0      4464   00000000 42     myfunc:F(0,1)
3      FUN    0      0      000000cc 0      

$ echo $((70000-4464))
65536

It's still trucated at 65536. So, even if the information is saved in
the file (from an hexdump it doesn't look so), it's not used correctly
by objdump and gdb.
My binutils version is:
binutils           2.11.92.0.12.3-3

Maybe I'm just doing something silly?
Thanks.

lupus

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