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stage0: Move stage0's section-headers before text.

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* stage0/elf32-header-exit-42.hex2: Add section-headers.
* stage0/elf32-body-exit-42.hex2: Update.
* stage0/elf32-footer-exit-42.hex2: Remove section-headers.
This commit is contained in:
Jan Nieuwenhuizen 2017-06-19 09:52:27 +02:00
parent 3b82abdfa5
commit f63d278cec
3 changed files with 174 additions and 162 deletions
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38
stage0/elf32-body-exit-42.hex2
View file

@ -25,30 +25,38 @@
### elf32-body-exit-42.hex2: 32 bit elf body in hex2 for `exit 42'
# @80
# @200
:ELF_text
:_start
# exit(42)
#e8 0b 00 00 00 # call +11 <main>
e8 %main
00 00 00
00 00 00 00
00 00 00 00
# @210
:main
bb 2a 00 00 00 # mov $42,%ebx
b8 01 00 00 00 # mov $0x1,%eax
cd 80 # int $0x80
00 00 00 00
# @90
:main
c9 # RET
# # @210
# :main
# c9 # RET
00 00 00
00 00 00 00
00 00 00 00
00 00 00 00
# 00 00 00
# 00 00 00 00
# 00 00 00 00
# 00 00 00 00
# @a0
# @220
:ELF_data
65 78 69 74 34 32 20 64 61 74 61 20 68 65 72 65 # exit42 data here"
#@ b0
# @230
:ELF_str
00 # 0
@ -57,12 +65,12 @@ c9 # RET
00 00 00
#@ c0
# @240
:ELF_sym
00 00 00 00 # st-name
00 00 00 00 # st-offset: &_start - BaseAddress
00 00 00 00 # st-len : &main - _start
00 # st-info = stt-func= 2
00 # st-info = stt-func= 2
00 # st-other
01 00 # st-shndx: 1
@ -70,7 +78,7 @@ c9 # RET
01 00 00 00 # st-name
&_start
10 00 00 00 # st-len : &main - _start
02 # st-info = stt-func= 2
02 # st-info = stt-func= 2
00 # st-other
01 00 # st-shndx: 1
@ -78,8 +86,6 @@ c9 # RET
08 00 00 00 # st-name
&main
10 00 00 00 # st-len : &ELF_data - main
02 # st-info = stt-func= 2
02 # st-info = stt-func= 2
00 # st-other
01 00 # st-shndx: 1

140
stage0/elf32-footer-exit-42.hex2
View file

@ -25,144 +25,4 @@
### elf32-footer-exit-42.hex2: 32 bit elf footer in hex2 for `exit 42'
# @f0
:ELF_comment
4d 45 53 00 # MES
00 00 00 00
00 00 00 00 # align
00 00 00 00 # align
# @100
:ELF_shstr
00
:ELF_shstr__text
2e 74 65 78 74 00 # .text
:ELF_shstr__data
2e 64 61 74 61 00 # .data
:ELF_shstr__comment
2e 63 6f 6d 6d 65 6e 74 00 #.comment
:ELF_shstr__shstrtab
2e 73 68 73 74 72 74 61 62 00 #.shstrtab
:ELF_shstr__symtab
2e 73 79 6d 74 61 62 00 #.symtab
:ELF_shstr__strtab
2e 73 74 72 74 61 62 00 #.strtab
# @130
bb bb bb bb
bb bb bb bb
bb bb bb bb
bb bb bb bb
# @140
:ELF_sections_headers
00 00 00 00 # sh_name
00 00 00 00 # sh_type
00 00 00 00 # sh_flags
00 00 00 00 # sh_addr
00 00 00 00 # sh_offset
00 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
## FIXME: M0 for calculations?
:ELF_section_header_text
#@ELF_shstr__text - @ELF_shstr # sh_name
01 00 00 00 # sh_name
01 00 00 00 # sh_type = SHT_PROGBITS = 1
06 00 00 00 # sh_flags = SHF-ALLOC|SHF-EXEC =2 | 4 = 6
#&ELF_base # sh_addr
&ELF_text # sh_addr
#@ELF_text - @ELF_base # sh_addr
80 00 00 00 # sh_offset
#@ELF_data - @ELF_text # sh_length
10 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_data
#@ELF_shstr__data - @ELF_shstr # sh_name
07 00 00 00 # sh_name
01 00 00 00 # sh_type = SHT_PROGBITS = 1
03 00 00 00 # sh_flags = SHF-WRITE|SHF-ALLOC = 1 | 2 = 3
#&ELF_base # sh_addr
&ELF_data # sh_addr
#@ELF_data - @ELF_base # sh_addr
a0 00 00 00 # sh_offset
#@ELF_comment - @ELF_data # sh_length
10 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_comment
#@ELF_shstr__comment - @ELF_shstr # sh_name
0d 00 00 00 # sh_name
01 00 00 00 # sh_type = SHT_PROGBITS = 1
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_comment # sh_addr
00 01 00 00 # sh_offset
00 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_shstr
#@ELF_shstr__shstr - @ELF_shstr # sh_name
16 00 00 00 # sh_name
03 00 00 00 # sh_type: str-sht-strtab
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_shstr # sh_addr
00 01 00 00 # sh_offset
30 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_sym
#@ELF_shstr__sym - @ELF_shstr # sh_name
20 00 00 00 # sh_name
02 00 00 00 # sh_type: str-sht-symtab
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_sym # sh_addr
c0 00 00 00 # sh_offset
30 00 00 00 # sh_length
06 00 00 00 # sh_link:6
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
10 00 00 00 # sh_entsize
:ELF_section_header_str
#@ELF_shstr__str - @ELF_shstr # sh_name
28 00 00 00 # sh_name
03 00 00 00 # sh_type: str-sht-strtab
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_str # sh_addr
b0 00 00 00 # sh_offset
10 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
00 00 00 00
00 00 00 00
:ELF_end
00

158
stage0/elf32-header-exit-42.hex2
View file

@ -1,3 +1,4 @@
### Copyright (C) 2016 Jeremiah Orians
### Copyright (C) 2017 Jan Nieuwenhuizen <janneke@gnu.org>
### This file is part of stage0.
###
@ -43,10 +44,10 @@
01 00 00 00 # e_version Indicating original elf
&ELF_text # e_entry Address of the entry point
#&ELF_program_headers - &ELF_base # e_phoff Address of program header table
34 00 00 00 # e_phoff Address of program header table
#&ELF_section_headers - &ELF_base # e_phoff Address of program header table
40 01 00 00 # e_shoff Address of section header table
#&ELF_program_headers - &ELF_base # e_phoff Address of program header table
40 00 00 00 # e_phoff Address of program header table
#&ELF_section_headers - &ELF_base # e_phoff Address of program header table
d0 00 00 00 # e_shoff Address of section header table
00 00 00 00 # e_flags
@ -60,6 +61,12 @@
04 00 # e_shstrndx index of the section names
# @34
00 00 00 00
00 00 00 00
00 00 00 00
# @40
:ELF_program_header__text
01 00 00 00 # ph_type: PT-LOAD = 1
00 00 00 00 # ph_offset
@ -70,7 +77,7 @@
07 00 00 00 # ph_flags: PF-X|PF-W|PF-R = 7
01 00 00 00 # ph_align
# @54
# @60
:ELF_program_header__data
01 00 00 00 # ph_type: PT-LOAD = 1
00 00 00 00 # ph_offset
@ -81,7 +88,146 @@ ff ff 00 00 # ph_memsz
07 00 00 00 # ph_flags: PF-X|PF-W|PF-R = 7
01 00 00 00 # ph_align
# @74
# @80
:ELF_comment
4d 45 53 00 # MES
00 00 00 00
00 00 00 00 # align
00 00 00 00 # align
4d 45 53 00 # MES
00 00 00 00
00 00 00 00 # align
00 00 00 00 # align
# @a0
:ELF_shstr
00
:ELF_shstr__text
2e 74 65 78 74 00 # .text
:ELF_shstr__data
2e 64 61 74 61 00 # .data
:ELF_shstr__comment
2e 63 6f 6d 6d 65 6e 74 00 # .comment
:ELF_shstr__shstrtab
2e 73 68 73 74 72 74 61 62 00 # .shstrtab
:ELF_shstr__symtab
2e 73 79 6d 74 61 62 00 # .symtab
:ELF_shstr__strtab
2e 73 74 72 74 61 62 00 # .strtab
# @d0
:ELF_sections_headers
00 00 00 00 # sh_name
00 00 00 00 # sh_type
00 00 00 00 # sh_flags
00 00 00 00 # sh_addr
00 00 00 00 # sh_offset
00 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
## FIXME: M0 for calculations?
:ELF_section_header_text
#@ELF_shstr__text - @ELF_shstr # sh_name
01 00 00 00 # sh_name
01 00 00 00 # sh_type = SHT_PROGBITS = 1
06 00 00 00 # sh_flags = SHF-ALLOC|SHF-EXEC =2 | 4 = 6
#&ELF_base # sh_addr
&ELF_text # sh_addr
#@ELF_text - @ELF_base # sh_addr
00 02 00 00 # sh_offset
#@ELF_data - @ELF_text # sh_length
20 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_data
#@ELF_shstr__data - @ELF_shstr # sh_name
07 00 00 00 # sh_name
01 00 00 00 # sh_type = SHT_PROGBITS = 1
03 00 00 00 # sh_flags = SHF-WRITE|SHF-ALLOC = 1 | 2 = 3
#&ELF_base # sh_addr
&ELF_data # sh_addr
#@ELF_data - @ELF_base # sh_addr
20 02 00 00 # sh_offset
#@ELF_comment - @ELF_data # sh_length
10 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_comment
#@ELF_shstr__comment - @ELF_shstr # sh_name
0d 00 00 00 # sh_name
01 00 00 00 # sh_type = SHT_PROGBITS = 1
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_comment # sh_addr
80 00 00 00 # sh_offset
00 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_shstr
#@ELF_shstr__shstr - @ELF_shstr # sh_name
16 00 00 00 # sh_name
03 00 00 00 # sh_type: str-sht-strtab
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_shstr # sh_addr
a0 00 00 00 # sh_offset
30 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
:ELF_section_header_sym
#@ELF_shstr__sym - @ELF_shstr # sh_name
20 00 00 00 # sh_name
02 00 00 00 # sh_type: str-sht-symtab
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_sym # sh_addr
40 02 00 00 # sh_offset
30 00 00 00 # sh_length
06 00 00 00 # sh_link:6
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
10 00 00 00 # sh_entsize
:ELF_section_header_str
#@ELF_shstr__str - @ELF_shstr # sh_name
28 00 00 00 # sh_name
03 00 00 00 # sh_type: str-sht-strtab
00 00 00 00 # sh_flags
#&ELF_base # sh_addr
&ELF_str # sh_addr
30 02 00 00 # sh_offset
10 00 00 00 # sh_length
00 00 00 00 # sh_link
00 00 00 00 # sh_info
01 00 00 00 # sh_1?
00 00 00 00 # sh_entsize
# @1e8
00 00 00 00 # align
00 00 00 00
# @1f0
00 00 00 00 # align
00 00 00 00
00 00 00 00
00 00 00 00
# @200