create_nmf.py not finding needed libraries

[Lionel G Landwerlin]

Hi,

I've compiled a small NaCl application with a dependency on SDL (using naclports).

Calling the create_nmf.py script to generate a nmf file doesn't seem to include any of the library the application depends on.

Tracing the create_nmf.py script a bit, it seems IsDynamicElf() (from elf.py) doesn't consider my application as dynamically linked.

Is this coherent with the following objdump -x ? : 

myapp_x86_64.nexe:     file format elf64-x86-64-nacl

myapp_x86_64.nexe

architecture: i386:x86-64:nacl, flags 0x00000150:

HAS_SYMS, DYNAMIC, D_PAGED

start address 0x0000000000005180

Program Header:

    LOAD off    0x0000000000010000 vaddr 0x0000000000000000 paddr 0x0000000000000000 align 2**16

         filesz 0x0000000000030000 memsz 0x0000000000030000 flags r-x

    LOAD off    0x0000000000040000 vaddr 0x0000000010000000 paddr 0x0000000010000000 align 2**16

         filesz 0x0000000000010128 memsz 0x0000000000010128 flags r--

    LOAD off    0x0000000000050128 vaddr 0x0000000010020128 paddr 0x0000000010020128 align 2**16

         filesz 0x0000000000001e38 memsz 0x0000000000001e38 flags rw-

    LOAD off    0x0000000000060000 vaddr 0x0000000010030000 paddr 0x0000000010030000 align 2**16

         filesz 0x0000000000000000 memsz 0x00000000000033e4 flags rw-

 DYNAMIC off    0x0000000000050290 vaddr 0x0000000010020290 paddr 0x0000000010020290 align 2**3

         filesz 0x0000000000000210 memsz 0x0000000000000210 flags rw-

   STACK off    0x0000000000000000 vaddr 0x0000000000000000 paddr 0x0000000000000000 align 2**3

         filesz 0x0000000000000000 memsz 0x0000000000000000 flags rw-

     TLS off    0x0000000000050128 vaddr 0x0000000010020128 paddr 0x0000000010020128 align 2**2

         filesz 0x0000000000000000 memsz 0x0000000000000004 flags r--

    NOTE off    0x0000000000040000 vaddr 0x0000000010000000 paddr 0x0000000010000000 align 2**2

         filesz 0x0000000000000024 memsz 0x0000000000000024 flags r--

Dynamic Section:

  NEEDED               libnacl_io.so

  NEEDED               libppapi_gles2.so

  NEEDED               libppapi_simple.so

  NEEDED               libpthread.so.11835d88

  NEEDED               libSDL-1.2.so.0

  NEEDED               libz.so.1

  NEEDED               libgcc_s.so.1

  NEEDED               libc.so.11835d88

  NEEDED               ld-nacl-x86-64.so.1

  SONAME               myapp_x86_64.nexe

  INIT                 0x0000000000000000

  FINI                 0x000000000002bf60

  HASH                 0x0000000010000028

  STRTAB               0x0000000010003728

  SYMTAB               0x0000000010000b90

  STRSZ                0x0000000000001b99

  SYMENT               0x0000000000000018

  PLTGOT               0x0000000010020708

  PLTRELSZ             0x0000000000001e48

  PLTREL               0x0000000000000007

  JMPREL               0x00000000100071e8

  RELA                 0x0000000010005748

  RELASZ               0x0000000000001aa0

  RELAENT              0x0000000000000018

  VERNEED              0x0000000010005668

  VERNEEDNUM           0x0000000000000004

  VERSYM               0x00000000100052c2

Version References:

  required from ld-nacl-x86-64.so.1:

    0x0d696913 0x00 09 GLIBC_2.3

    0x0d696914 0x00 07 GLIBC_2.4

  required from libgcc_s.so.1:

    0x0b792650 0x00 11 GCC_3.0

    0x0d696910 0x00 05 GLIBC_2.0

  required from libc.so.11835d88:

    0x0d696917 0x00 10 GLIBC_2.7

    0x09691972 0x00 08 GLIBC_2.3.2

    0x09691a75 0x00 03 GLIBC_2.2.5

  required from libpthread.so.11835d88:

    0x09691972 0x00 06 GLIBC_2.3.2

    0x09691973 0x00 04 GLIBC_2.3.3

    0x09691a75 0x00 02 GLIBC_2.2.5

Thanks,

-

Lionel

[Ben Smith]

What are your arguments to create_nmf.py? What is the generated nmf file? Are there any files in the lib32/lib64 directories?

I can't remember the exact command, but you'll need to stage dependencies (-s) and include additional lib dirs (-L), I believe. The examples in the SDK do this automatically, take a look at the commands they run (make TOOLCHAIN=glibc V=1).

[Lionel G Landwerlin]

Thanks,

Looks like I had one of the linker's option wrong.

It works properly now, without any special option to create_nmf.py.

-

Lionel