Entry 1 has
ELF64_R_TYPE == STT_FILE
. ELF64_R_TYPE
is continued inside of st_info
.Byte analysis:
- 10 8:
st_name
=01000000
= character 1 in the.strtab
, which until the following\0
makeshello_world.asm
This piece of information file may be used by the linker to decide on which segment sections go: e.g. inld
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 usest_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 forSTT_FILE
. - 10 13:
st_shndx
= Symbol Table Section header Index =f1ff
=SHN_ABS
. Required forSTT_FILE
. - 20 0:
st_value
= 8x00
: required for value forSTT_FILE
- 20 8:
st_size
= 8x00
: no allocated size
Now from the
readelf
, we interpret the others quickly.