readelf-ld.bfd.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:               0x0
  Start of program headers:          64 (bytes into file)
  Start of section headers:          2097208 (bytes into file)
  Flags:                             0x0
  Size of this header:               64 (bytes)
  Size of program headers:           56 (bytes)
  Number of program headers:         1
  Size of section headers:           64 (bytes)
  Number of section headers:         7
  Section header string table index: 4

Section Headers:
  [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            0000000000000000 000000 000000 00      0   0  0
  [ 1] .text             PROGBITS        0000000000000000 200000 000001 00  AX  0   0  1
  [ 2] .rodata           PROGBITS        0000000000000001 200001 000004 00   A  0   0  1
  [ 3] .data             PROGBITS        0000000000000005 200005 000004 00  WA  0   0  1
  [ 4] .shstrtab         STRTAB          0000000000000000 200009 00002f 00      0   0  1
  [ 5] .symtab           SYMTAB          0000000000000000 2001f8 000060 18      6   4  8
  [ 6] .strtab           STRTAB          0000000000000000 200258 000001 00      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)

Program Headers:
  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
  LOAD           0x200000 0x0000000000000000 0x0000000001000000 0x000009 0x000009 RWE 0x200000

 Section to Segment mapping:
  Segment Sections...
   00     .text .rodata .data

readelf-ld.gold.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:               0x0
  Start of program headers:          64 (bytes into file)
  Start of section headers:          8328 (bytes into file)
  Flags:                             0x0
  Size of this header:               64 (bytes)
  Size of program headers:           56 (bytes)
  Number of program headers:         3
  Size of section headers:           64 (bytes)
  Number of section headers:         9
  Section header string table index: 8

Section Headers:
  [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            0000000000000000 000000 000000 00      0   0  0
  [ 1] .rodata           PROGBITS        0000000000000001 001001 000004 00   A  0   0  1
  [ 2] .data             PROGBITS        0000000000000005 001005 000004 00  WA  0   0  1
  [ 3] .bss              NOBITS          0000000000000028 001028 000000 00  WA  0   0  1
  [ 4] .text             PROGBITS        0000000000000000 002000 000001 00  AX  0   0  1
  [ 5] .note.gnu.gold-version NOTE            0000000000000000 002004 00001c 00      0   0  4
  [ 6] .symtab           SYMTAB          0000000000000000 002020 000018 18      7   1  8
  [ 7] .strtab           STRTAB          0000000000000000 002038 000001 00      0   0  1
  [ 8] .shstrtab         STRTAB          0000000000000000 002039 00004b 00      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)

Program Headers:
  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
  LOAD           0x001001 0x0000000000000001 0x0000000000000001 0x000004 0x000004 R   0x1000
  LOAD           0x001005 0x0000000000000005 0x0000000000000005 0x000023 0x000023 RW  0x1000
  LOAD           0x002000 0x0000000000000000 0x0000000001000000 0x000001 0x000001 R E 0x1000

 Section to Segment mapping:
  Segment Sections...
   00     .rodata 
   01     .data 
   02     .text

test.ld

SECTIONS
{
  .text : AT(0x1000000) { *(.text) }
  .rodata : { *(.rodata) }
  .data : { *(.data) }
  .bss : { *(.bss) }
}

test.S

.section .text
  nop 
.section .rodata
  .long 123 
.section .data
  .long 456