ELF Hello World Tutorial / `STT_FILE`

Entry 1 has ELF64_R_TYPE == STT_FILE. ELF64_R_TYPE is continued inside of st_info.

10 8: st_name = 01000000 = character 1 in the .strtab, which until the following \0 makes hello_world.asm
This piece of information file may be used by the linker to decide on which segment sections go: e.g. in ld linker script we write:
```
segment_name :
{
    file(section)
}
```
to pick a section from a given file.
Most of the time however, we will just dump all sections with a given name together with:
```
segment_name :
{
    *(section)
}
```
10 12: st_info = 04
Bits 0-3 = ELF64_R_TYPE = Type = 4 = STT_FILE: the main purpose of this entry is to use st_name to indicate the name of the file which generated this object file.
Bits 4-7 = ELF64_ST_BIND = Binding = 0 = STB_LOCAL. Required value for STT_FILE.
10 13: st_shndx = Symbol Table Section header Index = f1ff = SHN_ABS. Required for STT_FILE.
20 0: st_value = 8x 00: required for value for STT_FILE
20 8: st_size = 8x 00: no allocated size

Now from the readelf, we interpret the others quickly.

 Ancestors (12)

There are no discussions about this article yet.

There are currently no matching articles.