[oi-dev] [OpenIndiana-discuss] GCC 5.4 added to the repository

[Alexander Pyhalov]

On 09/ 6/16 04:57 PM, Thomas Wagner wrote:
> Hi Aurelien,
>
> it would be very cool if someone could send me / the list the output
> of "elfdump -d" on a compiled binary with C++ code. If that is not
> available, then regular C-code is okay too. e.g. gcc -o hello hello.c
> I have no test system at hand (have only older hipster on disk).
>
> What I would appreciated to see would be a configuration that has
> "[ LAZY ]"-load removed (only) for gcc runtime libs.
>
> Excample "good":
>
> ...
>   [2] somelib.so
>   [3] libgcc_s.so
> ...
>   [5] someotherlib.so
>   [6] libstdc++.so
>
>
> Excample "bad":
>
> ...
>   [2] somelib.so
>   [3] [ LAZY ]          <- delayed load/binding, libc.so can bind funcs earlier then libgcc_s.so
>   [4] libgcc_s.so
> ...
>   [5] someotherlib.so
>   [6] [ LAZY ]          <- delayed load/binding, libc.so can bind funcs earlier then libstdc++.so
>   [7] libstdc++.so
>

Hi.

For g++ 5:

Dynamic Section:  .dynamic
      index  tag                value
        [0]  NEEDED            0x2ad               libstdc++.so.6
        [1]  NEEDED            0x2ee               libm.so.2
        [2]  NEEDED            0x2f8               librt.so.1
        [3]  NEEDED            0x303               libgcc_s.so.1
        [4]  NEEDED            0x2c8               libc.so.1
        [5]  INIT              0x8051030
        [6]  FINI              0x8051050
        [7]  RUNPATH           0x311               /usr/gcc/5/lib
        [8]  RPATH             0x311               /usr/gcc/5/lib
        [9]  HASH              0x80501c0
       [10]  STRTAB            0x8050630
       [11]  STRSZ             0x520
       [12]  SYMTAB            0x8050420
       [13]  SYMENT            0x10
       [14]  SUNW_SYMTAB       0x80502e0
       [15]  SUNW_SYMSZ        0x350
       [16]  SUNW_SORTENT      0x4
       [17]  SUNW_SYMSORT      0x8050be4
       [18]  SUNW_SYMSORTSZ    0x50
       [19]  CHECKSUM          0x5bf6
       [20]  VERNEED           0x8050b50
       [21]  VERNEEDNUM        0x2
       [22]  FINI_ARRAY        0x8061318
       [23]  FINI_ARRAYSZ      0x8
       [24]  INIT_ARRAY        0x8061320
       [25]  INIT_ARRAYSZ      0x8
       [26]  PLTRELSZ          0x40
       [27]  PLTREL            0x11
       [28]  JMPREL            0x8050c64
       [29]  REL               0x8050c34
       [30]  RELSZ             0x70
       [31]  RELENT            0x8
       [32]  SYMINFO           0x805013c
       [33]  SYMINSZ           0x84
       [34]  SYMINENT          0x4
       [35]  DEBUG             0
       [36]  FLAGS             0                   0
       [37]  FLAGS_1           0                   0
       [38]  SUNW_STRPAD       0x200
       [39]  SUNW_LDMACH       0x3e                EM_AMD64
       [40]  PLTGOT            0x8061078
    [41-51]  NULL              0


For g++ 4.9:
Dynamic Section:  .dynamic
      index  tag                value
        [0]  NEEDED            0x2c3               libstdc++.so.6
        [1]  NEEDED            0x304               libm.so.2
        [2]  NEEDED            0x30e               librt.so.1
        [3]  NEEDED            0x319               libgcc_s.so.1
        [4]  NEEDED            0x2de               libc.so.1
        [5]  INIT              0x80510c0
        [6]  FINI              0x80510f0
        [7]  HASH              0x80501c0
        [8]  STRTAB            0x8050640
        [9]  STRSZ             0x527
       [10]  SYMTAB            0x8050430
       [11]  SYMENT            0x10
       [12]  SUNW_SYMTAB       0x80502e0
       [13]  SUNW_SYMSZ        0x360
       [14]  SUNW_SORTENT      0x4
       [15]  SUNW_SYMSORT      0x8050bfc
       [16]  SUNW_SYMSORTSZ    0x50
       [17]  CHECKSUM          0xaddb
       [18]  VERNEED           0x8050b68
       [19]  VERNEEDNUM        0x2
       [20]  PLTRELSZ          0x40
       [21]  PLTREL            0x11
       [22]  JMPREL            0x8050c7c
       [23]  REL               0x8050c4c
       [24]  RELSZ             0x70
       [25]  RELENT            0x8
       [26]  SYMINFO           0x805013c
       [27]  SYMINSZ           0x84
       [28]  SYMINENT          0x4
       [29]  DEBUG             0
       [30]  FLAGS             0                   0
       [31]  FLAGS_1           0                   0
       [32]  SUNW_STRPAD       0x200
       [33]  SUNW_LDMACH       0x3e                EM_AMD64
       [34]  PLTGOT            0x806111c
    [35-45]  NULL              0

I don't see any specific patch for -zinterpose...


-- 
Best regards,
Alexander Pyhalov,
system administrator of Southern Federal University IT department