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mes/stage0/elf32-header.hex2

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stage0: Move stage0's section-headers before text. * 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.
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### Copyright (C) 2016 Jeremiah Orians
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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### Copyright (C) 2017 Jan Nieuwenhuizen <janneke@gnu.org>
### This file is part of stage0.
###
### stage0 is free software: you an redistribute it and/or modify
### it under the terms of the GNU General Public License as published by
### the Free Software Foundation, either version 3 of the License, or
### (at your option) any later version.
###
### stage0 is distributed in the hope that it will be useful,
### but WITHOUT ANY WARRANTY; without even the implied warranty of
### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
### GNU General Public License for more details.
###
### You should have received a copy of the GNU General Public License
### along with stage0. If not, see <http://www.gnu.org/licenses/>.
### stage0's hex2 format for x86
### !<label> 1 byte relative
### $<label> 2 byte address
### @<label> 2 byte relative
### &<label> 4 byte address
### %<label> 4 byte relative
### local_<label> function-local
### string_<index> string #<index>
### elf32-header-exit-42.hex2: 32 bit elf header in hex2 for `exit 42'
:ELF_base
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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7F 45 4C 46 # e_ident[EI_MAG0-3] ELF's magic number
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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01 # e_ident[EI_CLASS] Indicating 32 bit
01 # e_ident[EI_DATA] Indicating little endianness
01 # e_ident[EI_VERSION] Indicating original elf
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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00 # e_ident[EI_OSABI] Set at 0 because none cares
00 # e_ident[EI_ABIVERSION] See above
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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00 00 00 00 00 00 00 # e_ident[EI_PAD]
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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02 00 # e_type Indicating Executable
03 00 # e_machine Indicating AMD64
01 00 00 00 # e_version Indicating original elf
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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&ELF_text # e_entry Address of the entry point
%ELF_program_headers>ELF_base # e_phoff Address of program header table
%ELF_section_headers>ELF_base # e_shoff Address of section header table
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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00 00 00 00 # e_flags
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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34 00 # e_ehsize Indicating our 52 Byte header
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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20 00 # e_phentsize size of a program header table
02 00 # e_phnum number of entries in program table
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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28 00 # e_shentsize size of a section header table
07 00 # e_shnum number of entries in section table
04 00 # e_shstrndx index of the section names
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Move stage0's section-headers before text. * 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.
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# @34
00 00 00 00
00 00 00 00
00 00 00 00
# @40
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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:ELF_program_headers
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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:ELF_program_header__text
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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01 00 00 00 # ph_type: PT-LOAD = 1
00 00 00 00 # ph_offset
&ELF_base # ph_vaddr
&ELF_base # ph_physaddr
%ELF_end>ELF_base # ph_filesz
%ELF_end>ELF_base # ph_memsz
07 00 00 00 # ph_flags: PF-X|PF-W|PF-R = 7
01 00 00 00 # ph_align
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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stage0: Move stage0's section-headers before text. * 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.
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# @60
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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:ELF_program_header__data
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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01 00 00 00 # ph_type: PT-LOAD = 1
00 00 00 00 # ph_offset
&ELF_base # ph_vaddr
&ELF_base # ph_physaddr
%ELF_end>ELF_base # ph_filesz
%ELF_end>ELF_base # ph_memsz
07 00 00 00 # ph_flags: PF-X|PF-W|PF-R = 7
01 00 00 00 # ph_align
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
2017-06-18 19:06:27 +00:00
stage0: Move stage0's section-headers before text. * 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.
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# @80
:ELF_comment
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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4d 45 53 00 # MES
00 00 00 00 # align
00 00 00 00
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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00 00 00 00
stage0: Move stage0's section-headers before text. * 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.
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stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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4d 45 53 00 # MES
00 00 00 00 # align
00 00 00 00
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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00 00 00 00
stage0: Move stage0's section-headers before text. * 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.
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# @a0
:ELF_shstr
00
:ELF_shstr__text
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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2e 74 65 78 74 00 # .text
stage0: Move stage0's section-headers before text. * 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.
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:ELF_shstr__data
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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2e 64 61 74 61 00 # .data
stage0: Move stage0's section-headers before text. * 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.
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:ELF_shstr__comment
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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2e 63 6f 6d 6d 65 6e 74 00 # .comment
:ELF_shstr__shstr
2e 73 68 73 74 72 74 61 62 00 # .shstrtab
:ELF_shstr__sym
2e 73 79 6d 74 61 62 00 # .symtab
:ELF_shstr__str
2e 73 74 72 74 61 62 00 # .strtab
stage0: Move stage0's section-headers before text. * 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.
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# @d0
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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:ELF_section_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
stage0: Move stage0's section-headers before text. * 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.
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## FIXME: M0 for calculations?
:ELF_section_header_text
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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%ELF_shstr__text>ELF_shstr # 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_text # sh_addr
%ELF_text>ELF_base # sh_offset
%ELF_data>ELF_text # 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
stage0: Move stage0's section-headers before text. * 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.
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:ELF_section_header_data
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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%ELF_shstr__data>ELF_shstr # sh_name
stage0: Move stage0's section-headers before text. * 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.
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01 00 00 00 # sh_type = SHT_PROGBITS = 1
03 00 00 00 # sh_flags = SHF-WRITE|SHF-ALLOC = 1 | 2 = 3
&ELF_data # sh_addr
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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%ELF_data>ELF_base # sh_offset
%ELF_sym>ELF_data # sh_length
stage0: Move stage0's section-headers before text. * 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.
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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
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
2017-06-19 20:45:51 +00:00
%ELF_shstr__comment>ELF_shstr # sh_name
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
01 00 00 00 # sh_type = SHT_PROGBITS = 1
00 00 00 00 # sh_flags
&ELF_comment # sh_addr
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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%ELF_comment>ELF_base # sh_offset
%ELF_shstr>ELF_comment # sh_length
stage0: Move stage0's section-headers before text. * 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.
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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
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
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%ELF_shstr__shstr>ELF_shstr # sh_name
stage0: Move stage0's section-headers before text. * 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.
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03 00 00 00 # sh_type: str-sht-strtab
00 00 00 00 # sh_flags
&ELF_shstr # sh_addr
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
2017-06-19 20:45:51 +00:00
%ELF_shstr>ELF_base # sh_offset
%ELF_section_headers>ELF_shstr # sh_length
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
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
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
2017-06-19 20:45:51 +00:00
%ELF_shstr__sym>ELF_shstr # sh_name
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
02 00 00 00 # sh_type: str-sht-symtab
00 00 00 00 # sh_flags
&ELF_sym # sh_addr
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
2017-06-19 20:45:51 +00:00
%ELF_sym>ELF_base # sh_offset
%ELF_end>ELF_sym # sh_length
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
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
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
2017-06-19 20:45:51 +00:00
%ELF_shstr__str>ELF_shstr # sh_name
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
03 00 00 00 # sh_type: str-sht-strtab
00 00 00 00 # sh_flags
&ELF_str # sh_addr
stage0: Leverage label>base in stage0 gdb header. * stage0/elf32-header-exit-42.hex2: Replace calculated addresses with label>base. * stage0/elf32-body-exit-42.hex2: Likewise.
2017-06-19 20:45:51 +00:00
%ELF_str>ELF_base # sh_offset
%ELF_sym>ELF_str # sh_length
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
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
stage0: Add stage0 hex2 gdb header and footer example. * stage0/elf32-header-exit-42.hex2: New file. * stage0/elf32-footer-exit-42.hex2: New file.
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00 00 00 00
stage0: Move stage0's section-headers before text. * 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.
2017-06-19 07:52:27 +00:00
# @1f0
00 00 00 00 # align
00 00 00 00
00 00 00 00
00 00 00 00
# @200
mescc: Produce object files in hex2 format, remove hex3. * GNUmakefile (HEX2_FLAGS): New variable. * make/mescc-guile.make ($(OUT)/$(TARGET)): Use HEX2 for linking. * make/mescc-mes.make ($(OUT)/$(TARGET)): Likewise. * guile/mescc.scm (main): Remove hex3 support. * scripts/mescc.mes (main): Likewise. * stage0/elf32-0header.hex2: New file, merging of elf32.hex and elf32-header.hex2. * stage0/elf-0footer.hex2: New file. * stage0/elf32-header.hex2: Rename from elf32-header-exit-42.hex2, repurpose as generic debug heder. * stage0/elf32-footer-single-main.hex2: Rename from elf32-footer-exit-42.hex2, repurpose as generic debug footer for single-main source. * stage0/exit-42.c: New file. * stage0/stage0.make ($(OUT)/0exit-42): Test 0header, 0footer. ($(OUT)/exit-42.guile): Test generic debug header, footer. * stage0/elf32.hex2: Remove.
2017-06-25 07:33:55 +00:00
:ELF_text
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