$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/opt/centos/devtoolset-1.1/root/usr/libexec/gcc/x86_64-CentOS-linux/4.7.2/lto-wrapper
Target: x86_64-CentOS-linux
Configured with: ../configure --prefix=/opt/centos/devtoolset-1.1/root/usr --mandir=/opt/centos/devtoolset-1.1/root/usr/share/man --infodir=/opt/centos/devtoolset-1.1/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --disable-build-with-cxx --disable-build-poststage1-with-cxx --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --disable-gnu-unique-object --enable-linker-build-id --enable-languages=c,c++,fortran,lto --enable-plugin --with-linker-hash-style=gnu --enable-initfini-array --disable-libgcj --with-gmp=/home/centos/rpm/BUILD/gcc-4.7.2-20121015/obj-x86_64-CentOS-linux/gmp-install --with-mpfr=/home/centos/rpm/BUILD/gcc-4.7.2-20121015/obj-x86_64-CentOS-linux/mpfr-install --with-ppl=/home/centos/rpm/BUILD/gcc-4.7.2-20121015/obj-x86_64-CentOS-linux/ppl-install --with-cloog=/home/centos/rpm/BUILD/gcc-4.7.2-20121015/obj-x86_64-CentOS-linux/cloog-install --with-mpc=/home/centos/rpm/BUILD/gcc-4.7.2-20121015/obj-x86_64-CentOS-linux/mpc-install --with-tune=generic --with-arch_32=i586 --build=x86_64-CentOS-linux
Thread model: posix
gcc version 4.7.2 20121015 (Red Hat 4.7.2-5) (GCC)

$ cat foo.cc 

#include <iostream>
int main(int argc, char *argv[]) {
    for(int i=0; i < argc; i++)
        std::cout << " " << argv[i];
    return 0;
}

$ g++ -fno-stack-protector -O2 foo.cc
$ readelf -a a.out
ELF Header:
  Magic:   7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 
  Class:                             ELF64
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              EXEC (Executable file)
  Machine:                           Advanced Micro Devices X86-64
  Version:                           0x1
  Entry point address:               0x400e98
  Start of program headers:          64 (bytes into file)
  Start of section headers:          19520 (bytes into file)
  Flags:                             0x0
  Size of this header:               64 (bytes)
  Size of program headers:           56 (bytes)
  Number of program headers:         8
  Size of section headers:           64 (bytes)
  Number of section headers:         32
  Section header string table index: 29

Section Headers:
  [Nr] Name              Type             Address           Offset
       Size              EntSize          Flags  Link  Info  Align
  [ 0]                   NULL             0000000000000000  00000000
       0000000000000000  0000000000000000           0     0     0
  [ 1] .interp           PROGBITS         0000000000400200  00000200
       000000000000001c  0000000000000000   A       0     0     1
  [ 2] .note.ABI-tag     NOTE             000000000040021c  0000021c
       0000000000000020  0000000000000000   A       0     0     4
  [ 3] .note.gnu.build-i NOTE             000000000040023c  0000023c
       0000000000000024  0000000000000000   A       0     0     4
  [ 4] .gnu.hash         GNU_HASH         0000000000400260  00000260
       0000000000000038  0000000000000000   A       5     0     8
  [ 5] .dynsym           DYNSYM           0000000000400298  00000298
       00000000000002d0  0000000000000018   A       6     1     8
  [ 6] .dynstr           STRTAB           0000000000400568  00000568
       0000000000000365  0000000000000000   A       0     0     1
  [ 7] .gnu.version      VERSYM           00000000004008ce  000008ce
       000000000000003c  0000000000000002   A       5     0     2
  [ 8] .gnu.version_r    VERNEED          0000000000400910  00000910
       0000000000000080  0000000000000000   A       6     3     8
  [ 9] .rela.dyn         RELA             0000000000400990  00000990
       0000000000000060  0000000000000018   A       5     0     8
  [10] .rela.plt         RELA             00000000004009f0  000009f0
       0000000000000240  0000000000000018   A       5    12     8
  [11] .init             PROGBITS         0000000000400c30  00000c30
       000000000000000e  0000000000000000  AX       0     0     4
  [12] .plt              PROGBITS         0000000000400c40  00000c40
       0000000000000190  0000000000000010  AX       0     0     16
  [13] .text             PROGBITS         0000000000400dd0  00000dd0
       0000000000002c0c  0000000000000000  AX       0     0     16
  [14] .fini             PROGBITS         00000000004039dc  000039dc
       0000000000000009  0000000000000000  AX       0     0     4
  [15] .rodata           PROGBITS         0000000000403a00  00003a00
       0000000000000084  0000000000000000   A       0     0     32
  [16] .eh_frame_hdr     PROGBITS         0000000000403a84  00003a84
       0000000000000104  0000000000000000   A       0     0     4
  [17] .eh_frame         PROGBITS         0000000000403b88  00003b88
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  [18] .gcc_except_table PROGBITS         00000000004040ec  000040ec
       00000000000005d0  0000000000000000   A       0     0     4
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  [20] .fini_array       FINI_ARRAY       00000000006046d0  000046d0
       0000000000000008  0000000000000000  WA       0     0     8
  [21] .jcr              PROGBITS         00000000006046d8  000046d8
       0000000000000008  0000000000000000  WA       0     0     8
  [22] .data.rel.ro      PROGBITS         00000000006046e0  000046e0
       0000000000000088  0000000000000000  WA       0     0     32
  [23] .dynamic          DYNAMIC          0000000000604768  00004768
       0000000000000200  0000000000000010  WA       6     0     8
  [24] .got              PROGBITS         0000000000604968  00004968
       0000000000000008  0000000000000008  WA       0     0     8
  [25] .got.plt          PROGBITS         0000000000604970  00004970
       00000000000000d8  0000000000000008  WA       0     0     8
  [26] .data             PROGBITS         0000000000604a48  00004a48
       0000000000000018  0000000000000000  WA       0     0     8
  [27] .bss              NOBITS           0000000000604a60  00004a60
       0000000000000118  0000000000000000  WA       0     0     32
  [28] .comment          PROGBITS         0000000000000000  00004a60
       00000000000000b6  0000000000000000           0     0     1
  [29] .shstrtab         STRTAB           0000000000000000  00004b16
       0000000000000127  0000000000000000           0     0     1
  [30] .symtab           SYMTAB           0000000000000000  00005440
       0000000000000ca8  0000000000000018          31    55     8
  [31] .strtab           STRTAB           0000000000000000  000060e8
       0000000000000c8d  0000000000000000           0     0     1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings), l (large)
  I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)
  O (extra OS processing required) o (OS specific), p (processor specific)

There are no section groups in this file.

Program Headers:
  Type           Offset             VirtAddr           PhysAddr
                 FileSiz            MemSiz              Flags  Align
  PHDR           0x0000000000000040 0x0000000000400040 0x0000000000400040
                 0x00000000000001c0 0x00000000000001c0  R E    8
  INTERP         0x0000000000000200 0x0000000000400200 0x0000000000400200
                 0x000000000000001c 0x000000000000001c  R      1
      [Requesting program interpreter: /lib64/ld-linux-x86-64.so.2]
  LOAD           0x0000000000000000 0x0000000000400000 0x0000000000400000
                 0x00000000000046bc 0x00000000000046bc  R E    200000
  LOAD           0x00000000000046c0 0x00000000006046c0 0x00000000006046c0
                 0x00000000000003a0 0x00000000000004b8  RW     200000
  DYNAMIC        0x0000000000004768 0x0000000000604768 0x0000000000604768
                 0x0000000000000200 0x0000000000000200  RW     8
  NOTE           0x000000000000021c 0x000000000040021c 0x000000000040021c
                 0x0000000000000044 0x0000000000000044  R      4
  GNU_EH_FRAME   0x0000000000003a84 0x0000000000403a84 0x0000000000403a84
                 0x0000000000000104 0x0000000000000104  R      4
  GNU_STACK      0x0000000000000000 0x0000000000000000 0x0000000000000000
                 0x0000000000000000 0x0000000000000000  RW     8

 Section to Segment mapping:
  Segment Sections...
   00     
   01     .interp 
   02     .interp .note.ABI-tag .note.gnu.build-id .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rela.dyn .rela.plt .init .plt .text .fini .rodata .eh_frame_hdr .eh_frame .gcc_except_table 
   03     .init_array .fini_array .jcr .data.rel.ro .dynamic .got .got.plt .data .bss 
   04     .dynamic 
   05     .note.ABI-tag .note.gnu.build-id 
   06     .eh_frame_hdr 
   07     

Dynamic section at offset 0x4768 contains 27 entries:
  Tag        Type                         Name/Value
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 0x0000000000000001 (NEEDED)             Shared library: [libm.so.6]
 0x0000000000000001 (NEEDED)             Shared library: [libgcc_s.so.1]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]
 0x000000000000000c (INIT)               0x400c30
 0x000000000000000d (FINI)               0x4039dc
 0x0000000000000019 (INIT_ARRAY)         0x6046c0
 0x000000000000001b (INIT_ARRAYSZ)       16 (bytes)
 0x000000000000001a (FINI_ARRAY)         0x6046d0
 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes)
 0x000000006ffffef5 (GNU_HASH)           0x400260
 0x0000000000000005 (STRTAB)             0x400568
 0x0000000000000006 (SYMTAB)             0x400298
 0x000000000000000a (STRSZ)              869 (bytes)
 0x000000000000000b (SYMENT)             24 (bytes)
 0x0000000000000015 (DEBUG)              0x0
 0x0000000000000003 (PLTGOT)             0x604970
 0x0000000000000002 (PLTRELSZ)           576 (bytes)
 0x0000000000000014 (PLTREL)             RELA
 0x0000000000000017 (JMPREL)             0x4009f0
 0x0000000000000007 (RELA)               0x400990
 0x0000000000000008 (RELASZ)             96 (bytes)
 0x0000000000000009 (RELAENT)            24 (bytes)
 0x000000006ffffffe (VERNEED)            0x400910
 0x000000006fffffff (VERNEEDNUM)         3
 0x000000006ffffff0 (VERSYM)             0x4008ce
 0x0000000000000000 (NULL)               0x0

Relocation section '.rela.dyn' at offset 0x990 contains 4 entries:
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0000006046f0  000d00000001 R_X86_64_64       0000000000000000 _ZTVN10__cxxabiv117__c + 10
000000604968  000300000006 R_X86_64_GLOB_DAT 0000000000000000 __gmon_start__ + 0
000000604a60  001b00000005 R_X86_64_COPY     0000000000604a60 _ZSt4cout + 0
Relocation section '.rela.plt' at offset 0x9f0 contains 24 entries:
  Offset          Info           Type           Sym. Value    Sym. Name + Addend
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000000604990  000200000007 R_X86_64_JUMP_SLO 0000000000000000 _ZNSt13basic_ostreamIw + 0
000000604998  000500000007 R_X86_64_JUMP_SLO 0000000000000000 _ZdlPv + 0
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The decoding of unwind sections for machine type Advanced Micro Devices X86-64 is not currently supported.

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    95: 0000000000604a60     0 OBJECT  GLOBAL HIDDEN    26 __TMC_END__
    96: 0000000000604a60   272 OBJECT  GLOBAL DEFAULT   27 _ZSt4cout@@GLIBCXX_3.4
    97: 0000000000403a08     0 OBJECT  GLOBAL HIDDEN    15 __dso_handle
    98: 0000000000403950   139 FUNC    GLOBAL DEFAULT   13 __libc_csu_init
    99: 00000000004033b0   466 FUNC    WEAK   DEFAULT   13 _ZNSt13basic_ostreamIwSt1
   100: 0000000000400d10     0 FUNC    GLOBAL DEFAULT  UND __cxa_pure_virtual@@CXXAB
   101: 0000000000400fb0   994 FUNC    WEAK   DEFAULT   13 _ZSt16__ostream_insertIcS
   102: 00000000004024a0   882 FUNC    WEAK   DEFAULT   13 _ZSt16__ostream_insertIwS
   103: 0000000000604a60     0 NOTYPE  GLOBAL DEFAULT   27 __bss_start
   104: 0000000000403910    18 FUNC    GLOBAL HIDDEN    13 _ZN10__cxxabiv115__forced
   105: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND __stack_chk_fail@@GLIBC_2
   106: 00000000004038d0    15 FUNC    GLOBAL HIDDEN    13 _ZN10__cxxabiv115__forced
   107: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND _ZNSt9basic_iosIcSt11char
   108: 0000000000401a00   540 FUNC    WEAK   DEFAULT   13 _ZNSo9_M_insertIxEERSoT_
   109: 0000000000400fa0     9 FUNC    WEAK   DEFAULT   13 pthread_equal
   110: 0000000000403590   492 FUNC    WEAK   DEFAULT   13 _ZNSt13basic_ostreamIwSt1
   111: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND memcmp@@GLIBC_2.2.5
   112: 0000000000604a50     8 OBJECT  WEAK   HIDDEN    26 DW.ref._ZTIN10__cxxabiv11
   113: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND _ZNSt9basic_iosIcSt11char
   114: 0000000000604b78     0 NOTYPE  GLOBAL DEFAULT   27 _end
   115: 0000000000403930     8 FUNC    GLOBAL DEFAULT   13 _ZNKSt13bad_exception4wha
   116: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND __cxa_end_catch@@CXXABI_1
   117: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND _ZNSo6sentryD1Ev@@GLIBCXX
   118: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND __cxa_begin_catch@@CXXABI
   119: 00000000004015c0   540 FUNC    WEAK   DEFAULT   13 _ZNSo9_M_insertImEERSoT_
   120: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND _ZSt18uncaught_exceptionv
   121: 0000000000401c20   540 FUNC    WEAK   DEFAULT   13 _ZNSo9_M_insertIyEERSoT_
   122: 00000000004017e0   540 FUNC    WEAK   DEFAULT   13 _ZNSo9_M_insertIbEERSoT_
   123: 0000000000604a60     0 NOTYPE  GLOBAL DEFAULT   26 _edata
   124: 0000000000400da0     0 FUNC    GLOBAL DEFAULT  UND __gxx_personality_v0@@CXX
   125: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND _ZNSo6sentryC1ERSo@@GLIBC
   126: 0000000000402a10   492 FUNC    WEAK   DEFAULT   13 _ZNSt13basic_ostreamIwSt1
   127: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND _Unwind_Resume@@GCC_3.0
   128: 0000000000402820   492 FUNC    WEAK   DEFAULT   13 _ZNSt13basic_ostreamIwSt1
   129: 0000000000401e40   540 FUNC    WEAK   DEFAULT   13 _ZNSo9_M_insertIdEERSoT_
   130: 0000000000402280   540 FUNC    WEAK   DEFAULT   13 _ZNSo9_M_insertIPKvEERSoT
   131: 0000000000403a40    32 OBJECT  WEAK   HIDDEN    15 _ZTSN10__cxxabiv115__forc
   132: 0000000000403780   190 FUNC    GLOBAL DEFAULT   13 _ZNKSt5ctypeIcE14_M_narro
   133: 0000000000400dd0   146 FUNC    GLOBAL DEFAULT   13 main
   134: 0000000000400c30     0 FUNC    GLOBAL DEFAULT   11 _init

Histogram for `.gnu.hash' bucket list length (total of 3 buckets):
 Length  Number     % of total  Coverage
      0  1          ( 33.3%)
      1  1          ( 33.3%)     20.0%
      2  0          (  0.0%)     20.0%
      3  0          (  0.0%)     20.0%
      4  1          ( 33.3%)    100.0%

Version symbols section '.gnu.version' contains 30 entries:
 Addr: 00000000004008ce  Offset: 0x0008ce  Link: 5 (.dynsym)
  000:   0 (*local*)       2 (GLIBCXX_3.4)   2 (GLIBCXX_3.4)   0 (*local*)    
  004:   0 (*local*)       2 (GLIBCXX_3.4)   3 (CXXABI_1.3)    2 (GLIBCXX_3.4)
  008:   4 (GLIBC_2.2.5)   2 (GLIBCXX_3.4)   4 (GLIBC_2.2.5)   2 (GLIBCXX_3.4)
  00c:   4 (GLIBC_2.2.5)   3 (CXXABI_1.3)    2 (GLIBCXX_3.4)   5 (GLIBC_2.4)  
  010:   2 (GLIBCXX_3.4)   4 (GLIBC_2.2.5)   2 (GLIBCXX_3.4)   3 (CXXABI_1.3) 
  014:   2 (GLIBCXX_3.4)   3 (CXXABI_1.3)    2 (GLIBCXX_3.4)   2 (GLIBCXX_3.4)
  018:   6 (GCC_3.0)       1 (*global*)      2 (GLIBCXX_3.4)   2 (GLIBCXX_3.4)
  01c:   3 (CXXABI_1.3)    3 (CXXABI_1.3) 

Version needs section '.gnu.version_r' contains 3 entries:
 Addr: 0x0000000000400910  Offset: 0x000910  Link: 6 (.dynstr)
  000000: Version: 1  File: libgcc_s.so.1  Cnt: 1
  004:   0 (*local*)       2 (GLIBCXX_3.4)   3 (CXXABI_1.3)    2 (GLIBCXX_3.4)
  008:   4 (GLIBC_2.2.5)   2 (GLIBCXX_3.4)   4 (GLIBC_2.2.5)   2 (GLIBCXX_3.4)
  00c:   4 (GLIBC_2.2.5)   3 (CXXABI_1.3)    2 (GLIBCXX_3.4)   5 (GLIBC_2.4)  
  010:   2 (GLIBCXX_3.4)   4 (GLIBC_2.2.5)   2 (GLIBCXX_3.4)   3 (CXXABI_1.3) 
  014:   2 (GLIBCXX_3.4)   3 (CXXABI_1.3)    2 (GLIBCXX_3.4)   2 (GLIBCXX_3.4)
  018:   6 (GCC_3.0)       1 (*global*)      2 (GLIBCXX_3.4)   2 (GLIBCXX_3.4)
  01c:   3 (CXXABI_1.3)    3 (CXXABI_1.3) 

Version needs section '.gnu.version_r' contains 3 entries:
 Addr: 0x0000000000400910  Offset: 0x000910  Link: 6 (.dynstr)
  000000: Version: 1  File: libgcc_s.so.1  Cnt: 1
  0x0010:   Name: GCC_3.0  Flags: none  Version: 6
  0x0020: Version: 1  File: libc.so.6  Cnt: 2
  0x0030:   Name: GLIBC_2.4  Flags: none  Version: 5
  0x0040:   Name: GLIBC_2.2.5  Flags: none  Version: 4
  0x0050: Version: 1  File: libstdc++.so.6  Cnt: 2
  0x0060:   Name: CXXABI_1.3  Flags: none  Version: 3
  0x0070:   Name: GLIBCXX_3.4  Flags: none  Version: 2

Notes at offset 0x0000021c with length 0x00000020:
  Owner                 Data size       Description
  GNU                  0x00000010       NT_GNU_ABI_TAG (ABI version tag)
    OS: Linux, ABI: 2.6.9

Notes at offset 0x0000023c with length 0x00000024:
  Owner                 Data size       Description
  GNU                  0x00000014       NT_GNU_BUILD_ID (unique build ID bitstring)
    Build ID: e4e78d7ddbc03c6a8e41050cb20cdc576128223a