Re: [Nix-dev] Static Executable: Patchelf fails me

2015-01-05 Thread Eelco Dolstra 
Hi,

On 05/01/15 00:24, Moritz Ulrich wrote:

 $ patchelf ./s3d.run 
 patchelf: patchelf.cc:292: void ElfFileElf_Ehdr, Elf_Phdr, Elf_Shdr, 
 Elf_Addr, Elf_Off, Elf_Dyn, Elf_Sym::parse() [with Elf_Ehdr = Elf64_Ehdr; 
 Elf_Phdr = Elf64_Phdr; Elf_Shdr = Elf64_Shdr; Elf_Addr = long unsigned int; 
 Elf_Off = long unsigned int; Elf_Dyn = Elf64_Dyn; Elf_Sym = Elf64_Sym]: 
 Assertion `shstrtabIndex  shdrs.size()' failed.
 Aborted

The error message could be more elegant, but the main issue is that patchelf
cannot work on static binaries because there is nothing to patch: no ELF
interpreter section, no DT_NEEDED entries, etc.

 Setting LD_PRELOAD with pkgs.libredirect doesn't have any effect. (Is
 this expected?)

Same thing, LD_PRELOAD doesn't work with static binaries because it affects the
dynamic linker, which doesn't get used for static executables.

If there is a dynamic executable hidden inside the static executable via UPX
compression or something similar, I guess you need to decompress it first and
then apply patchelf.

-- 
Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/
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Re: [Nix-dev] Static Executable: Patchelf fails me

2015-01-05 Thread Vladimír Čunát 
On 01/05/2015 12:24 AM, Moritz Ulrich wrote:
 It's also worth to note that the executable (an installer) works just
 fine when I symlink any ld-linux-x86-64.so.2 to /lib64.

I guess that's the only thing you can do with a static executable (using 
static libc is bad enough by itself). Of course, you can feign the paths 
by some chroots, proot or VM.

Vladimir

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Re: [Nix-dev] Static Executable: Patchelf fails me

2015-01-04 Thread Moritz Ulrich 

Sorry for mangling the lines. I blame Emacs.

Moritz Ulrich mor...@tarn-vedra.de writes:

 Hello,

 I'm trying to package/run a static executable for Simplify3D, a
 commercial 3D printer slicing software. My usual approaches (patchelf,
 LD_PRELOAD) fail me here, so I'm asking for help

 Some information on the file:

 $ file ./s3d.run
 ./s3d.run: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), 
 statically linked, stripped

 $ strace ./s3d.run
 execve(./s3d.run, [./s3d.run], [/* 110 vars */]) = 0
 mmap(0x70, 2415740, PROT_READ|PROT_WRITE|PROT_EXEC, 
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, 0, 0) = 0x70
 readlink(/proc/self/exe, /home/moritz/downloads/s3d/s3d.r..., 4096) = 34
 mmap(0x40, 2420736, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 
 0) = 0x40
 mmap(0x40, 1235252, PROT_READ|PROT_WRITE|PROT_EXEC, 
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40
 mprotect(0x40, 1235252, PROT_READ|PROT_EXEC) = 0
 mmap(0x62e000, 66376, PROT_READ|PROT_WRITE, 
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0x12e000) = 0x62e000
 mprotect(0x62e000, 66376, PROT_READ|PROT_WRITE) = 0
 mmap(0x63f000, 64072, PROT_READ|PROT_WRITE, 
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x63f000
 open(/lib64/ld-linux-x86-64.so.2, O_RDONLY) = -1 ENOENT (No such file or 
 directory)
 _exit(127)  = ?
 +++ exited with 127 +++

 $ patchelf ./s3d.run 
 patchelf: patchelf.cc:292: void ElfFileElf_Ehdr, Elf_Phdr, Elf_Shdr, 
 Elf_Addr, Elf_Off, Elf_Dyn, Elf_Sym::parse() [with Elf_Ehdr = Elf64_Ehdr; 
 Elf_Phdr = Elf64_Phdr; Elf_Shdr = Elf64_Shdr; Elf_Addr = long unsigned int; 
 Elf_Off = long unsigned int; Elf_Dyn = Elf64_Dyn; Elf_Sym = Elf64_Sym]: 
 Assertion `shstrtabIndex  shdrs.size()' failed.
 Aborted

 Setting LD_PRELOAD with pkgs.libredirect doesn't have any effect. (Is
 this expected?) I also tried running the executable with
 ld-linux-x86-64.so.2 directly (with and without LD_PRELOAD). 

 With LD_PRELOAD, it got a bit further:

 $ 
 LD_PRELOAD=/nix/store/qc0jqhjassfw1anmy1zbq5v5717yn8xs-libredirect-0/lib/libredirect.so
   NIX_REDIRECTS=/lib64/ld-linux-x86-64.so.2=$(cat 
 /nix/store/w1lj2s6v2wjmgd44fdi9i1p53qbxrqdc-gcc-wrapper-4.8.3/nix-support/dynamic-linker)
  strace 
 /nix/store/la5imi1602jxhpds9675n2n2d0683lbq-glibc-2.20/lib/ld-linux-x86-64.so.2
  ./s3d.run 
 execve(/nix/store/la5imi1602jxhpds9675n2n2d0683lbq-glibc-2.20/lib/ld-linux-x86-64.so.2,
  [/nix/store/la5imi1602jxhpds9675n..., ./s3d.run], [/* 111 vars */]) = 0
 brk(0)  = 0x55777000
 open(./s3d.run, O_RDONLY|O_CLOEXEC)   = 3
 read(3, \177ELF\2\1\1\3\0\0\0\0\0\0\0\0\2\0\0\1\0\0\0H\371F\0\0\0\0\0..., 
 832) = 832
 fstat(3, {st_mode=S_IFREG|0755, st_size=30666582, ...}) = 0
 getcwd(/home/moritz/downloads/s3d, 128) = 27
 mmap(0x30, 1511424, PROT_READ|PROT_EXEC, 
 MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0x30
 mmap(0x64e000, 4096, PROT_READ|PROT_WRITE, 
 MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14e000) = 0x64e000
 mprotect(0x7fffc000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSDOWN) 
 = 0
 close(3)= 0
 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
 0x77ff9000
 open(/nix/store/qc0jqhjassfw1anmy1zbq5v5717yn8xs-libredirect-0/lib/libredirect.so,
  O_RDONLY|O_CLOEXEC) = 3
 read(3, \177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0\0\1\0\0\\n\0\0\0\0\0\0..., 
 832) = 832
 fstat(3, {st_mode=S_IFREG|0555, st_size=9589, ...}) = 0
 mmap(NULL, 2104616, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 
 0x77df7000
 mprotect(0x77df9000, 2093056, PROT_NONE) = 0
 mmap(0x77ff8000, 4096, PROT_READ|PROT_WRITE, 
 MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x77ff8000
 close(3)= 0
 access(/etc/ld-nix.so.preload, R_OK)  = -1 ENOENT (No such file or 
 directory)
 open(/run/opengl-driver/lib/tls/x86_64/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1 
 ENOENT (No such file or directory)
 stat(/run/opengl-driver/lib/tls/x86_64, 0x7fffb940) = -1 ENOENT (No 
 such file or directory)
 open(/run/opengl-driver/lib/tls/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1 ENOENT 
 (No such file or directory)
 stat(/run/opengl-driver/lib/tls, 0x7fffb940) = -1 ENOENT (No such file 
 or directory)
 open(/run/opengl-driver/lib/x86_64/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1 
 ENOENT (No such file or directory)
 stat(/run/opengl-driver/lib/x86_64, 0x7fffb940) = -1 ENOENT (No such 
 file or directory)
 open(/run/opengl-driver/lib/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1 ENOENT (No 
 such file or directory)
 stat(/run/opengl-driver/lib, {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
 open(/run/opengl-driver-32/lib/tls/x86_64/libdl.so.2, O_RDONLY|O_CLOEXEC) = 
 -1 ENOENT (No such file or directory)
 stat(/run/opengl-driver-32/lib/tls/x86_64, 0x7fffb940) = -1 ENOENT (No 
 such file or directory)
 open(/run/opengl-driver-32/lib/tls/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1 
 ENOENT (No such file or directory)

Re: [Nix-dev] Static Executable: Patchelf fails me

2015-01-04 Thread Luca Bruno 
Not an expert here, but maybe the binary is so much stripped that patchelf
is not able to determine the right offsets for patching the binary.

About the segfault, maybe it spawns some other process and the libs are not
propagated? That may explain why the symlink works.

On Mon, Jan 5, 2015 at 12:33 AM, Moritz Ulrich mor...@tarn-vedra.de wrote:


 Sorry for mangling the lines. I blame Emacs.

 Moritz Ulrich mor...@tarn-vedra.de writes:

  Hello,
 
  I'm trying to package/run a static executable for Simplify3D, a
  commercial 3D printer slicing software. My usual approaches (patchelf,
  LD_PRELOAD) fail me here, so I'm asking for help
 
  Some information on the file:
 
  $ file ./s3d.run
  ./s3d.run: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux),
 statically linked, stripped
 
  $ strace ./s3d.run
  execve(./s3d.run, [./s3d.run], [/* 110 vars */]) = 0
  mmap(0x70, 2415740, PROT_READ|PROT_WRITE|PROT_EXEC,
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, 0, 0) = 0x70
  readlink(/proc/self/exe, /home/moritz/downloads/s3d/s3d.r..., 4096)
 = 34
  mmap(0x40, 2420736, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
 -1, 0) = 0x40
  mmap(0x40, 1235252, PROT_READ|PROT_WRITE|PROT_EXEC,
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40
  mprotect(0x40, 1235252, PROT_READ|PROT_EXEC) = 0
  mmap(0x62e000, 66376, PROT_READ|PROT_WRITE,
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0x12e000) = 0x62e000
  mprotect(0x62e000, 66376, PROT_READ|PROT_WRITE) = 0
  mmap(0x63f000, 64072, PROT_READ|PROT_WRITE,
 MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x63f000
  open(/lib64/ld-linux-x86-64.so.2, O_RDONLY) = -1 ENOENT (No such file
 or directory)
  _exit(127)  = ?
  +++ exited with 127 +++
 
  $ patchelf ./s3d.run
  patchelf: patchelf.cc:292: void ElfFileElf_Ehdr, Elf_Phdr, Elf_Shdr,
 Elf_Addr, Elf_Off, Elf_Dyn, Elf_Sym::parse() [with Elf_Ehdr = Elf64_Ehdr;
 Elf_Phdr = Elf64_Phdr; Elf_Shdr = Elf64_Shdr; Elf_Addr = long unsigned int;
 Elf_Off = long unsigned int; Elf_Dyn = Elf64_Dyn; Elf_Sym = Elf64_Sym]:
 Assertion `shstrtabIndex  shdrs.size()' failed.
  Aborted
 
  Setting LD_PRELOAD with pkgs.libredirect doesn't have any effect. (Is
  this expected?) I also tried running the executable with
  ld-linux-x86-64.so.2 directly (with and without LD_PRELOAD).
 
  With LD_PRELOAD, it got a bit further:
 
  $
 LD_PRELOAD=/nix/store/qc0jqhjassfw1anmy1zbq5v5717yn8xs-libredirect-0/lib/libredirect.so
 NIX_REDIRECTS=/lib64/ld-linux-x86-64.so.2=$(cat
 /nix/store/w1lj2s6v2wjmgd44fdi9i1p53qbxrqdc-gcc-wrapper-4.8.3/nix-support/dynamic-linker)
 strace
 /nix/store/la5imi1602jxhpds9675n2n2d0683lbq-glibc-2.20/lib/ld-linux-x86-64.so.2
 ./s3d.run
 
 execve(/nix/store/la5imi1602jxhpds9675n2n2d0683lbq-glibc-2.20/lib/ld-linux-x86-64.so.2,
 [/nix/store/la5imi1602jxhpds9675n..., ./s3d.run], [/* 111 vars */]) = 0
  brk(0)  = 0x55777000
  open(./s3d.run, O_RDONLY|O_CLOEXEC)   = 3
  read(3,
 \177ELF\2\1\1\3\0\0\0\0\0\0\0\0\2\0\0\1\0\0\0H\371F\0\0\0\0\0..., 832) =
 832
  fstat(3, {st_mode=S_IFREG|0755, st_size=30666582, ...}) = 0
  getcwd(/home/moritz/downloads/s3d, 128) = 27
  mmap(0x30, 1511424, PROT_READ|PROT_EXEC,
 MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0x30
  mmap(0x64e000, 4096, PROT_READ|PROT_WRITE,
 MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14e000) = 0x64e000
  mprotect(0x7fffc000, 4096,
 PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSDOWN) = 0
  close(3)= 0
  mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
 = 0x77ff9000
 
 open(/nix/store/qc0jqhjassfw1anmy1zbq5v5717yn8xs-libredirect-0/lib/libredirect.so,
 O_RDONLY|O_CLOEXEC) = 3
  read(3,
 \177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0\0\1\0\0\\n\0\0\0\0\0\0..., 832)
 = 832
  fstat(3, {st_mode=S_IFREG|0555, st_size=9589, ...}) = 0
  mmap(NULL, 2104616, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
 0) = 0x77df7000
  mprotect(0x77df9000, 2093056, PROT_NONE) = 0
  mmap(0x77ff8000, 4096, PROT_READ|PROT_WRITE,
 MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x77ff8000
  close(3)= 0
  access(/etc/ld-nix.so.preload, R_OK)  = -1 ENOENT (No such file or
 directory)
  open(/run/opengl-driver/lib/tls/x86_64/libdl.so.2, O_RDONLY|O_CLOEXEC)
 = -1 ENOENT (No such file or directory)
  stat(/run/opengl-driver/lib/tls/x86_64, 0x7fffb940) = -1 ENOENT
 (No such file or directory)
  open(/run/opengl-driver/lib/tls/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1
 ENOENT (No such file or directory)
  stat(/run/opengl-driver/lib/tls, 0x7fffb940) = -1 ENOENT (No such
 file or directory)
  open(/run/opengl-driver/lib/x86_64/libdl.so.2, O_RDONLY|O_CLOEXEC) =
 -1 ENOENT (No such file or directory)
  stat(/run/opengl-driver/lib/x86_64, 0x7fffb940) = -1 ENOENT (No
 such file or directory)
  open(/run/opengl-driver/lib/libdl.so.2, O_RDONLY|O_CLOEXEC) = -1
 ENOENT (No such file or directory)