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Reproducible builds on linux (not reproducible on macos, unfinished on windows) #43

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SuzanneSoy wants to merge 19 commits from dev-reproducible-build into master
pull from: dev-reproducible-build
merge into: suzanne.soy:master
Conversation 1 Commits 19 Files Changed 5 +16 -6
2 changed files with 16 additions and 6 deletions
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Showing only changes of commit 24fe32c3b5 - Show all commits

3
.gitignore vendored
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@ -118,3 +118,6 @@
/deploy-screenshots/virtualbox-anim.gif /deploy-screenshots/virtualbox-anim.gif
/deploy-screenshots/virtualbox.png /deploy-screenshots/virtualbox.png
/os.bat /os.bat
/utils/mcopy
/utils/mformat
/utils/mkisofs

19
Makefile
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@ -108,7 +108,8 @@ built_files = ${os_filename} \
${tests_noemu:test/%=${bld}/test_pass/noemu_%} \ ${tests_noemu:test/%=${bld}/test_pass/noemu_%} \
${tests_requiring_sudo:test/%=${bld}/test_pass/sudo_%} \ ${tests_requiring_sudo:test/%=${bld}/test_pass/sudo_%} \
${tests_emu:test/%=${screenshots}/%.png} \ ${tests_emu:test/%=${screenshots}/%.png} \
${tests_emu:test/%=${screenshots}/%-anim.gif} ${tests_emu:test/%=${screenshots}/%-anim.gif} \
utils/mformat utils/mcopy utils/mkisofs
# Temporary copies used to adjust timestamps for reproducible builds. # Temporary copies used to adjust timestamps for reproducible builds.
# These are normally created and deleted within a single target, but # These are normally created and deleted within a single target, but
@ -211,12 +212,17 @@ ${more_built_directories}: Makefile
${bld}/os.32k: example-os/os.asm ${bld}/check_makefile ${bld}/os.32k: example-os/os.asm ${bld}/check_makefile
nasm -w+macro-params -w+macro-selfref -w+orphan-labels -w+gnu-elf-extensions -o $@ $< nasm -w+macro-params -w+macro-selfref -w+orphan-labels -w+gnu-elf-extensions -o $@ $<
# Circumvent the fact that faketime does not work on system binaries in macos
./utils/mkisofs ./utils/mformat ./utils/mcopy: Makefile # TODO: depend on the mkisofs binary
cp $$(which $$(basename $@)) $@
chmod u+x $@
cp_T_option = $$(if test "$$(uname -s)" = Darwin; then echo ''; else echo '-T'; fi) cp_T_option = $$(if test "$$(uname -s)" = Darwin; then echo ''; else echo '-T'; fi)
${bld}/os.iso: ${bld}/iso_files/os.zip ${bld}/iso_files/boot/iso_boot.sys ${bld}/check_makefile ${bld}/os.iso: ${bld}/iso_files/os.zip ${bld}/iso_files/boot/iso_boot.sys ./utils/mkisofs ${bld}/check_makefile
! test -d ${bld}/iso_files.tmp ! test -d ${bld}/iso_files.tmp
cp -a ${cp_T_option} -- ${bld}/iso_files ${bld}/iso_files.tmp cp -a ${cp_T_option} -- ${bld}/iso_files ${bld}/iso_files.tmp
find ${bld}/iso_files.tmp -depth -exec touch -t ${commit_timestamp} '{}' ';' find ${bld}/iso_files.tmp -depth -exec touch -t ${commit_timestamp} '{}' ';'
(cd ./${bld}/iso_files.tmp/ && faketime -f ${commit_faketime} mkisofs \ UTILS="$$PWD/utils" (cd ./${bld}/iso_files.tmp/ && faketime -f ${commit_faketime} $$UTILS/mkisofs \
--input-charset utf-8 \ --input-charset utf-8 \
-rock \ -rock \
-joliet \ -joliet \
@ -292,14 +298,15 @@ ${eval ${call offset,bytes_gpt_mirror_start, $${bytes_gpt_mirror_end} - $${bytes
${eval ${call offset,bytes_zip_end, $${bytes_os_size}, bytes_os_size,}} ${eval ${call offset,bytes_zip_end, $${bytes_os_size}, bytes_os_size,}}
os_fat12_partition = "$@@@${bytes_fat12_start}" os_fat12_partition = "$@@@${bytes_fat12_start}"
${bld}/os.fat12: ${bld}/os.zip ${dep_bytes_fat12_size} ${dep_bytes_fat12_start} ${dep_sectors_os_size} ${bld}/check_makefile ${bld}/os.fat12: ${bld}/os.zip ${dep_bytes_fat12_size} ${dep_bytes_fat12_start} ${dep_sectors_os_size} \
./utils/mformat ./utils/mcopy ${bld}/check_makefile
set -x; dd if=/dev/zero bs=${sector_size} count=${sectors_os_size} of=$@ set -x; dd if=/dev/zero bs=${sector_size} count=${sectors_os_size} of=$@
faketime -f ${commit_faketime} mformat -v "Example OS" \ faketime -f ${commit_faketime} ./utils/mformat -v "Example OS" \
-T ${sectors_fat12_size} \ -T ${sectors_fat12_size} \
-h ${os_floppy_chs_h} \ -h ${os_floppy_chs_h} \
-s ${os_floppy_chs_s} \ -s ${os_floppy_chs_s} \
-i ${os_fat12_partition} -i ${os_fat12_partition}
faketime -f ${commit_faketime} mcopy -i ${os_fat12_partition} $< "::os.zip" faketime -f ${commit_faketime} ./utils/mcopy -i ${os_fat12_partition} $< "::os.zip"
${bld}/iso_files/os.zip: ${bld}/os.zip ${bld}/check_makefile ${bld}/iso_files/os.zip: ${bld}/os.zip ${bld}/check_makefile
# TODO: make it so that the various file formats are mutual quines: # TODO: make it so that the various file formats are mutual quines: