Re: [DynInst_API:] rewritten binary returning symbol lookup error.

[Bill Williams <bill@xxxxxxxxxxx>]

On 01/09/2014 11:36 AM, J. Benton wrote:
> On 1/9/14, 11:20 AM, Bill Williams wrote:
> > On 01/09/2014 11:16 AM, J. Benton wrote:
> > > On 1/9/14, 10:49 AM, Bill Williams wrote:
> > > > On 01/09/2014 02:55 AM, J. Benton wrote:
> > > > > Hi everyone,
> > > > >
> > > > > I'm wondering if you could help me.  Using the examples in the
> > > > > programmer's manual as a guide, I generated a simple snippet,
> > > > > inserting
> > > > > a printf call upon each call to a function. After the binary is
> > > > > rewritten I get this error when it is executed:
> > > > >
> > > > > symbol lookup error: /usr/lib/libdyninstAPI_RT.so: undefined symbol:
> > > > > sizeOfAnyHeap1
> > > > >
> > > > > /usr/lib/libdyninstAPI_RT.so exists.  I've set DYNINST_LIB to
> > > > > /usr/lib.
> > > > >
> > > > > Any ideas?
> > > > sizeOfAnyHeap1 should show up in an nm of your libdyninstAPI_RT.so,
> > > > and libdyninstAPI_RT.so should show up in an ldd of your rewritten
> > > > binary, assuming that everything is working correctly. Are either of
> > > > those not the case for you?
> > > That's a good point. The rewritten binary does not include any libraries
> > > in the ldd list.  Modifying the binary generates an empty list in the
> > > ldd, even when the original includes a few.
> > ...okay, that's weird, and something that should throw some red flags
> > to STDERR during the rewriting process I'd expect. If you're not
> > getting any errors during the process, can you set
> > SYMTAB_DEBUG_REWRITE=1 in your environment, regenerate the modified
> > binary, and send us the log that produces?
> >
> > Also, what version of Dyninst are you working with?
> I'm working with Dyninst 8.1.2.  While toying with it, I modded the
> program to only insert a printf at "main".
Nothing jumps out at me from that log.

If you don't mind sending me the rewritten binary (off-list probably is 
better for folks' mailboxes) I can take a look this afternoon and see 
what I can find.
--bw

> Here's the output:
>
>   createSymbolTables for dc
> ::driver for emitElf64
> Emitting to temporary file dcLKORnw
> section .interp addr = 400238 off = 270 size = 1c
> section .note.ABI-tag addr = 400254 off = 1254 size = 20
> section .note.gnu.build-id addr = 400274 off = 1274 size = 24
> section .gnu.hash addr = 400298 off = 1298 size = 38
> section .dynsym addr = 4002d0 off = 12d0 size = 498
> section .dynstr addr = 400768 off = 1768 size = 1f1
> section .gnu.version addr = 40095a off = 195a size = 62
> section .gnu.version_r addr = 4009c0 off = 19c0 size = 60
> section .rela.dyn addr = 400a20 off = 1a20 size = 90
> section .rela.plt addr = 400ab0 off = 1ab0 size = 408
> section .init addr = 400eb8 off = 1eb8 size = 1a
> section .plt addr = 400ee0 off = 1ee0 size = 2c0
> section .text addr = 4011a0 off = 21a0 size = 63d4
> section .fini addr = 407574 off = 8574 size = 9
> section .rodata addr = 407580 off = 8580 size = da1
> section .eh_frame_hdr addr = 408324 off = 9324 size = 36c
> section .eh_frame addr = 408690 off = 9690 size = 1464
> section .init_array addr = 609e10 off = ae10 size = 8
> section .fini_array addr = 609e18 off = ae18 size = 8
> section .jcr addr = 609e20 off = ae20 size = 8
> section .dynamic addr = 609e28 off = ae28 size = 1d0
> section .got addr = 609ff8 off = aff8 size = 8
> section .got.plt addr = 60a000 off = b000 size = 170
> section .data addr = 60a170 off = b170 size = 24
> section .bss addr = 60a1a0 off = b194 size = 8a8
> new section .dyninstInst addr = 700000 off = c000 size = 5d0
> new section .gnu.hash addr = 7005d0 off = c5d0 size = 490
> new section .dynsym addr = 700a60 off = ca60 size = 1068
> new section .dynstr addr = 701ac8 off = dac8 size = 80c
> new section .gnu.version addr = 7022d4 off = e2d4 size = 15e
> new section .gnu.version_r addr = 702432 off = e432 size = 60
> new section .rela.dyn addr = 702492 off = e492 size = c0
> new section .rela.plt addr = 702552 off = e552 size = 408
> new section .dynamic addr = 70295a off = e95a size = 1d0
> section .gnu_debuglink addr = 0 off = eb2a size = 34
> Existing program header: type 6, offset 0x40, addr 0x3ff040
> Existing program header: type 3, offset 0x270, addr 0x400238
> Existing program header: type 1, offset 0x0, addr 0x3ff000
> Added New program header : offset 0x700000,addr 0x700000 file Size
> 0x2b2a memsize 0x2b2a
> Existing program header: type 1, offset 0xc000, addr 0x700000
> Existing program header: type 2, offset 0xe95a, addr 0x70295a
> Existing program header: type 4, offset 0x1254, addr 0x400254
> Existing program header: type 1685382480, offset 0x9324, addr 0x408324
> Existing program header: type 1685382481, offset 0x0, addr 0x0
> Existing program header: type 1685382482, offset 0xae10, addr 0x609e10
>
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--
--bw

Bill Williams
Paradyn Project
bill@xxxxxxxxxxx