1de0f33020
* 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.
65 lines
2.1 KiB
Plaintext
65 lines
2.1 KiB
Plaintext
### Copyright (C) 2017 Jan Nieuwenhuizen <janneke@gnu.org>
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### This file is part of stage0.
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###
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### stage0 is free software: you an redistribute it and/or modify
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### it under the terms of the GNU General Public License as published by
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### the Free Software Foundation, either version 3 of the License, or
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### (at your option) any later version.
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###
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### stage0 is distributed in the hope that it will be useful,
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### but WITHOUT ANY WARRANTY; without even the implied warranty of
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### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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### GNU General Public License for more details.
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###
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### You should have received a copy of the GNU General Public License
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### along with stage0. If not, see <http://www.gnu.org/licenses/>.
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### stage0's hex2 format for x86
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### !<label> 1 byte relative
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### $<label> 2 byte address
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### @<label> 2 byte relative
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### &<label> 4 byte address
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### %<label> 4 byte relative
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### local_<label> function-local
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### string_<index> string #<index>
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### elf32-footer-single-main.hex2: 32 bit elf footer in hex2 for single main
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# @230
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:ELF_str
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00 # 0
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:ELF_str__start
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5f 73 74 61 72 74 00 # _start
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:ELF_str__main
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6d 61 69 6e 00 # main
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00 00 00
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# @240
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:ELF_sym
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00 00 00 00 # st-name
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00 00 00 00 # st-offset: &_start - BaseAddress
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00 00 00 00 # st-len : &main - _start
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00 # st-info = stt-func= 2
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00 # st-other
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01 00 # st-shndx: 1
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# _start
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%ELF_str__start>ELF_str # st-name
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&_start
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10 00 00 00 # st-len : &main - _start
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02 # st-info = stt-func= 2
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00 # st-other
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01 00 # st-shndx: 1
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# main
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%ELF_str__main>ELF_str # st-name
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&main
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10 00 00 00 # st-len : &ELF_data - main
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02 # st-info = stt-func= 2
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00 # st-other
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01 00 # st-shndx: 1
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:ELF_end
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