[racket] Statistical profiler doesn't return a complete report with JIT

It looks stripped to me! no .debug sections.


➜ ~/temp/usr/bin git:(master) ✗ objdump -h racket Fri Nov 16 11 2012 
04:07:16 PM:

racket: file format elf64-x86-64

Sections:
Idx Name Size VMA LMA File off Algn
0 .interp 0000001c 0000000000400270 0000000000400270 00000270 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
1 .note.ABI-tag 00000020 000000000040028c 000000000040028c 0000028c 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
2 .note.gnu.build-id 00000024 00000000004002ac 00000000004002ac 000002ac 
2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
3 .gnu.hash 00004b5c 00000000004002d0 00000000004002d0 000002d0 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
4 .dynsym 0000e658 0000000000404e30 0000000000404e30 00004e30 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
5 .dynstr 0000d785 0000000000413488 0000000000413488 00013488 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
6 .gnu.version 00001332 0000000000420c0e 0000000000420c0e 00020c0e 2**1
CONTENTS, ALLOC, LOAD, READONLY, DATA
7 .gnu.version_r 00000100 0000000000421f40 0000000000421f40 00021f40 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
8 .rela.dyn 000000a8 0000000000422040 0000000000422040 00022040 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
9 .rela.plt 00001308 00000000004220e8 00000000004220e8 000220e8 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
10 .init 0000001a 00000000004233f0 00000000004233f0 000233f0 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
11 .plt 00000cc0 0000000000423410 0000000000423410 00023410 2**4
CONTENTS, ALLOC, LOAD, READONLY, CODE
12 .text 0037ee50 00000000004240d0 00000000004240d0 000240d0 2**4
CONTENTS, ALLOC, LOAD, READONLY, CODE
13 .fini 00000009 00000000007a2f20 00000000007a2f20 003a2f20 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
14 .rodata 00023884 00000000007a2f40 00000000007a2f40 003a2f40 2**5
CONTENTS, ALLOC, LOAD, READONLY, DATA
15 .eh_frame_hdr 0000c5c4 00000000007c67c4 00000000007c67c4 003c67c4 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
16 .eh_frame 00032004 00000000007d2d88 00000000007d2d88 003d2d88 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
17 .gcc_except_table 00000049 0000000000804d8c 0000000000804d8c 00404d8c 
2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
18 .tbss 00000ba0 0000000000a05dc0 0000000000a05dc0 00405dc0 2**3
ALLOC, THREAD_LOCAL
19 .init_array 00000008 0000000000a05dc0 0000000000a05dc0 00405dc0 2**3
CONTENTS, ALLOC, LOAD, DATA
20 .fini_array 00000008 0000000000a05dc8 0000000000a05dc8 00405dc8 2**3
CONTENTS, ALLOC, LOAD, DATA
21 .jcr 00000008 0000000000a05dd0 0000000000a05dd0 00405dd0 2**3
CONTENTS, ALLOC, LOAD, DATA
22 .dynamic 00000210 0000000000a05dd8 0000000000a05dd8 00405dd8 2**3
CONTENTS, ALLOC, LOAD, DATA
23 .got 00000018 0000000000a05fe8 0000000000a05fe8 00405fe8 2**3
CONTENTS, ALLOC, LOAD, DATA
24 .got.plt 00000670 0000000000a06000 0000000000a06000 00406000 2**3
CONTENTS, ALLOC, LOAD, DATA
25 .data 00028b30 0000000000a06680 0000000000a06680 00406680 2**5
CONTENTS, ALLOC, LOAD, DATA
26 .bss 000364b0 0000000000a2f1c0 0000000000a2f1c0 0042f1b0 2**5
ALLOC

On 11/16/2012 03:48 PM, Jon Rafkind wrote:
> Looking over the build log it doesn't look like the racket binary is 
> stripped.
>
> https://launchpadlibrarian.net/122407607/buildlog_ubuntu-raring-amd64.racket_5.3.1.5-20121108~raring_BUILDING.txt.gz 
>
>
> On 11/16/2012 08:46 AM, Diogo F. S. Ramos wrote:
>> Matthew Flatt <mflatt at cs.utah.edu> writes:
>>
>>> Does the executable from the package have debugging info stripped away?
>>> The Racket JIT needs some DWARF information to reconstruct the call
>>> stack for backtraces and profiling on x86_64.
>> I don't know if my method is conclusive, but running `gdb' with the
>> package's executable tells me this:
>>
>> Reading symbols from /usr/bin/racket...(no debugging symbols
>> found)...done.
>> ____________________
>> Racket Users list:
>> http://lists.racket-lang.org/users
>
> ____________________
> Racket Users list:
> http://lists.racket-lang.org/users