swh:1:snp:47f1e8bb459169b0feb652a9c3d9cbabd8526d4a
Revision fe24d396e1b8d2eedbc07f626af3dcd2b14e6012 authored by Jeff King on 13 July 2014, 06:41:55 UTC, committed by Junio C Hamano on 28 July 2014, 17:14:33 UTC
The "struct object" type implements basic object polymorphism. Individual instances are allocated as concrete types (or as a union type that can store any object), and a "struct object *" can be cast into its real type after examining its "type" enum. This means it is dangerous to have a type field that does not match the allocation (e.g., setting the type field of a "struct blob" to "OBJ_COMMIT" would mean that a reader might read past the allocated memory). In most of the current code this is not a problem; the first thing we do after allocating an object is usually to set its type field by passing it to create_object. However, the virtual commits we create in merge-recursive.c do not ever get their type set. This does not seem to have caused problems in practice, though (presumably because we always pass around a "struct commit" pointer and never even look at the type). We can fix this oversight and also make it harder for future code to get it wrong by setting the type directly in the object allocation functions. This will also make it easier to fix problems with commit index allocation, as we know that any object allocated by alloc_commit_node will meet the invariant that an object with an OBJ_COMMIT type field will have a unique index number. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Tip revision: 84d06cdc06389ae7c462434cb7b1db0980f63860 authored by Junio C Hamano on 26 March 2021, 21:59:47 UTC
Sync with v2.31.1
Sync with v2.31.1
Tip revision: 84d06cd
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block-sha1 | ||
builtin | ||
compat | ||
contrib | ||
ewah | ||
git-gui | ||
gitk-git | ||
gitweb | ||
mergetools | ||
perl | ||
po | ||
ppc | ||
t | ||
templates | ||
vcs-svn | ||
xdiff | ||
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.gitignore | -rw-r--r-- | 3.5 KB |
.mailmap | -rw-r--r-- | 13.6 KB |
COPYING | -rw-r--r-- | 18.3 KB |
GIT-VERSION-GEN | -rwxr-xr-x | 764 bytes |
INSTALL | -rw-r--r-- | 8.5 KB |
LGPL-2.1 | -rw-r--r-- | 26.2 KB |
Makefile | -rw-r--r-- | 74.9 KB |
README | -rw-r--r-- | 2.6 KB |
RelNotes | l--------- | 32 bytes |
abspath.c | -rw-r--r-- | 5.8 KB |
aclocal.m4 | -rw-r--r-- | 1.4 KB |
advice.c | -rw-r--r-- | 3.2 KB |
advice.h | -rw-r--r-- | 927 bytes |
alias.c | -rw-r--r-- | 1.7 KB |
alloc.c | -rw-r--r-- | 2.5 KB |
archive-tar.c | -rw-r--r-- | 11.0 KB |
archive-zip.c | -rw-r--r-- | 12.1 KB |
archive.c | -rw-r--r-- | 12.3 KB |
archive.h | -rw-r--r-- | 1.3 KB |
argv-array.c | -rw-r--r-- | 1.8 KB |
argv-array.h | -rw-r--r-- | 696 bytes |
attr.c | -rw-r--r-- | 19.0 KB |
attr.h | -rw-r--r-- | 1.6 KB |
base85.c | -rw-r--r-- | 2.8 KB |
bisect.c | -rw-r--r-- | 23.6 KB |
bisect.h | -rw-r--r-- | 644 bytes |
blob.c | -rw-r--r-- | 555 bytes |
blob.h | -rw-r--r-- | 664 bytes |
branch.c | -rw-r--r-- | 8.1 KB |
branch.h | -rw-r--r-- | 1.9 KB |
builtin.h | -rw-r--r-- | 8.5 KB |
bulk-checkin.c | -rw-r--r-- | 7.0 KB |
bulk-checkin.h | -rw-r--r-- | 343 bytes |
bundle.c | -rw-r--r-- | 11.0 KB |
bundle.h | -rw-r--r-- | 707 bytes |
cache-tree.c | -rw-r--r-- | 16.3 KB |
cache-tree.h | -rw-r--r-- | 1.5 KB |
cache.h | -rw-r--r-- | 51.4 KB |
check-builtins.sh | -rwxr-xr-x | 590 bytes |
check-racy.c | -rw-r--r-- | 538 bytes |
check_bindir | -rwxr-xr-x | 369 bytes |
color.c | -rw-r--r-- | 5.2 KB |
color.h | -rw-r--r-- | 3.1 KB |
column.c | -rw-r--r-- | 10.2 KB |
column.h | -rw-r--r-- | 1.4 KB |
combine-diff.c | -rw-r--r-- | 37.0 KB |
command-list.txt | -rw-r--r-- | 7.9 KB |
commit-slab.h | -rw-r--r-- | 4.0 KB |
commit.c | -rw-r--r-- | 39.2 KB |
commit.h | -rw-r--r-- | 11.6 KB |
config.c | -rw-r--r-- | 43.5 KB |
config.mak.in | -rw-r--r-- | 540 bytes |
config.mak.uname | -rw-r--r-- | 15.1 KB |
configure.ac | -rw-r--r-- | 31.4 KB |
connect.c | -rw-r--r-- | 17.5 KB |
connect.h | -rw-r--r-- | 596 bytes |
connected.c | -rw-r--r-- | 3.3 KB |
connected.h | -rw-r--r-- | 930 bytes |
convert.c | -rw-r--r-- | 29.2 KB |
convert.h | -rw-r--r-- | 2.2 KB |
copy.c | -rw-r--r-- | 1.6 KB |
credential-cache--daemon.c | -rw-r--r-- | 5.9 KB |
credential-cache.c | -rw-r--r-- | 2.9 KB |
credential-store.c | -rw-r--r-- | 4.0 KB |
credential.c | -rw-r--r-- | 7.6 KB |
credential.h | -rw-r--r-- | 822 bytes |
csum-file.c | -rw-r--r-- | 4.1 KB |
csum-file.h | -rw-r--r-- | 1.1 KB |
ctype.c | -rw-r--r-- | 2.6 KB |
daemon.c | -rw-r--r-- | 30.2 KB |
date.c | -rw-r--r-- | 25.4 KB |
decorate.c | -rw-r--r-- | 1.8 KB |
decorate.h | -rw-r--r-- | 400 bytes |
delta.h | -rw-r--r-- | 3.4 KB |
diff-delta.c | -rw-r--r-- | 15.4 KB |
diff-lib.c | -rw-r--r-- | 14.0 KB |
diff-no-index.c | -rw-r--r-- | 5.5 KB |
diff.c | -rw-r--r-- | 134.9 KB |
diff.h | -rw-r--r-- | 11.3 KB |
diffcore-break.c | -rw-r--r-- | 8.8 KB |
diffcore-delta.c | -rw-r--r-- | 5.4 KB |
diffcore-order.c | -rw-r--r-- | 2.4 KB |
diffcore-pickaxe.c | -rw-r--r-- | 5.7 KB |
diffcore-rename.c | -rw-r--r-- | 17.3 KB |
diffcore.h | -rw-r--r-- | 4.7 KB |
dir.c | -rw-r--r-- | 41.3 KB |
dir.h | -rw-r--r-- | 6.9 KB |
editor.c | -rw-r--r-- | 1.5 KB |
entry.c | -rw-r--r-- | 7.3 KB |
environment.c | -rw-r--r-- | 7.5 KB |
exec_cmd.c | -rw-r--r-- | 3.2 KB |
exec_cmd.h | -rw-r--r-- | 509 bytes |
fast-import.c | -rw-r--r-- | 87.6 KB |
fetch-pack.c | -rw-r--r-- | 25.9 KB |
fetch-pack.h | -rw-r--r-- | 1.0 KB |
fmt-merge-msg.h | -rw-r--r-- | 187 bytes |
fsck.c | -rw-r--r-- | 10.4 KB |
fsck.h | -rw-r--r-- | 1.0 KB |
generate-cmdlist.sh | -rwxr-xr-x | 433 bytes |
gettext.c | -rw-r--r-- | 4.3 KB |
gettext.h | -rw-r--r-- | 1.4 KB |
git-add--interactive.perl | -rwxr-xr-x | 36.0 KB |
git-am.sh | -rwxr-xr-x | 22.7 KB |
git-archimport.perl | -rwxr-xr-x | 36.0 KB |
git-bisect.sh | -rwxr-xr-x | 11.7 KB |
git-compat-util.h | -rw-r--r-- | 18.1 KB |
git-cvsexportcommit.perl | -rwxr-xr-x | 12.6 KB |
git-cvsimport.perl | -rwxr-xr-x | 31.3 KB |
git-cvsserver.perl | -rwxr-xr-x | 158.6 KB |
git-difftool--helper.sh | -rwxr-xr-x | 1.9 KB |
git-difftool.perl | -rwxr-xr-x | 12.9 KB |
git-filter-branch.sh | -rwxr-xr-x | 11.5 KB |
git-instaweb.sh | -rwxr-xr-x | 18.1 KB |
git-merge-octopus.sh | -rwxr-xr-x | 2.2 KB |
git-merge-one-file.sh | -rwxr-xr-x | 3.4 KB |
git-merge-resolve.sh | -rwxr-xr-x | 944 bytes |
git-mergetool--lib.sh | -rw-r--r-- | 7.4 KB |
git-mergetool.sh | -rwxr-xr-x | 8.2 KB |
git-p4.py | -rwxr-xr-x | 119.3 KB |
git-parse-remote.sh | -rw-r--r-- | 2.3 KB |
git-pull.sh | -rwxr-xr-x | 8.7 KB |
git-quiltimport.sh | -rwxr-xr-x | 3.3 KB |
git-rebase--am.sh | -rw-r--r-- | 2.2 KB |
git-rebase--interactive.sh | -rw-r--r-- | 27.8 KB |
git-rebase--merge.sh | -rw-r--r-- | 3.7 KB |
git-rebase.sh | -rwxr-xr-x | 15.6 KB |
git-relink.perl | -rwxr-xr-x | 4.0 KB |
git-remote-testgit.sh | -rwxr-xr-x | 2.7 KB |
git-request-pull.sh | -rwxr-xr-x | 3.8 KB |
git-send-email.perl | -rwxr-xr-x | 43.0 KB |
git-sh-i18n.sh | -rw-r--r-- | 2.0 KB |
git-sh-setup.sh | -rw-r--r-- | 8.1 KB |
git-stash.sh | -rwxr-xr-x | 13.3 KB |
git-submodule.sh | -rwxr-xr-x | 31.4 KB |
git-svn.perl | -rwxr-xr-x | 59.6 KB |
git-web--browse.sh | -rwxr-xr-x | 4.3 KB |
git.c | -rw-r--r-- | 17.8 KB |
git.rc | -rw-r--r-- | 566 bytes |
git.spec.in | -rw-r--r-- | 11.1 KB |
gpg-interface.c | -rw-r--r-- | 3.7 KB |
gpg-interface.h | -rw-r--r-- | 721 bytes |
graph.c | -rw-r--r-- | 34.8 KB |
graph.h | -rw-r--r-- | 3.9 KB |
grep.c | -rw-r--r-- | 40.6 KB |
grep.h | -rw-r--r-- | 4.7 KB |
hashmap.c | -rw-r--r-- | 5.4 KB |
hashmap.h | -rw-r--r-- | 1.8 KB |
help.c | -rw-r--r-- | 11.1 KB |
help.h | -rw-r--r-- | 1.1 KB |
hex.c | -rw-r--r-- | 2.3 KB |
http-backend.c | -rw-r--r-- | 13.9 KB |
http-fetch.c | -rw-r--r-- | 2.3 KB |
http-push.c | -rw-r--r-- | 50.5 KB |
http-walker.c | -rw-r--r-- | 14.0 KB |
http.c | -rw-r--r-- | 38.6 KB |
http.h | -rw-r--r-- | 6.1 KB |
ident.c | -rw-r--r-- | 10.4 KB |
imap-send.c | -rw-r--r-- | 32.9 KB |
khash.h | -rw-r--r-- | 13.1 KB |
kwset.c | -rw-r--r-- | 20.5 KB |
kwset.h | -rw-r--r-- | 2.6 KB |
levenshtein.c | -rw-r--r-- | 2.5 KB |
levenshtein.h | -rw-r--r-- | 203 bytes |
line-log.c | -rw-r--r-- | 30.7 KB |
line-log.h | -rw-r--r-- | 1.8 KB |
line-range.c | -rw-r--r-- | 6.5 KB |
line-range.h | -rw-r--r-- | 1.3 KB |
list-objects.c | -rw-r--r-- | 6.1 KB |
list-objects.h | -rw-r--r-- | 407 bytes |
ll-merge.c | -rw-r--r-- | 10.2 KB |
ll-merge.h | -rw-r--r-- | 567 bytes |
lockfile.c | -rw-r--r-- | 6.3 KB |
log-tree.c | -rw-r--r-- | 22.5 KB |
log-tree.h | -rw-r--r-- | 1015 bytes |
mailmap.c | -rw-r--r-- | 9.1 KB |
mailmap.h | -rw-r--r-- | 271 bytes |
match-trees.c | -rw-r--r-- | 8.2 KB |
merge-blobs.c | -rw-r--r-- | 2.6 KB |
merge-blobs.h | -rw-r--r-- | 194 bytes |
merge-recursive.c | -rw-r--r-- | 58.4 KB |
merge-recursive.h | -rw-r--r-- | 1.6 KB |
merge.c | -rw-r--r-- | 2.8 KB |
mergesort.c | -rw-r--r-- | 1.5 KB |
mergesort.h | -rw-r--r-- | 574 bytes |
name-hash.c | -rw-r--r-- | 6.3 KB |
notes-cache.c | -rw-r--r-- | 2.1 KB |
notes-cache.h | -rw-r--r-- | 500 bytes |
notes-merge.c | -rw-r--r-- | 22.7 KB |
notes-merge.h | -rw-r--r-- | 2.9 KB |
notes-utils.c | -rw-r--r-- | 4.4 KB |
notes-utils.h | -rw-r--r-- | 1.1 KB |
notes.c | -rw-r--r-- | 36.1 KB |
notes.h | -rw-r--r-- | 11.2 KB |
object.c | -rw-r--r-- | 9.5 KB |
object.h | -rw-r--r-- | 4.3 KB |
pack-bitmap-write.c | -rw-r--r-- | 12.5 KB |
pack-bitmap.c | -rw-r--r-- | 25.1 KB |
pack-bitmap.h | -rw-r--r-- | 1.8 KB |
pack-check.c | -rw-r--r-- | 5.0 KB |
pack-objects.c | -rw-r--r-- | 2.2 KB |
pack-objects.h | -rw-r--r-- | 1.9 KB |
pack-revindex.c | -rw-r--r-- | 7.0 KB |
pack-revindex.h | -rw-r--r-- | 410 bytes |
pack-write.c | -rw-r--r-- | 10.3 KB |
pack.h | -rw-r--r-- | 3.2 KB |
pager.c | -rw-r--r-- | 3.6 KB |
parse-options-cb.c | -rw-r--r-- | 2.7 KB |
parse-options.c | -rw-r--r-- | 16.9 KB |
parse-options.h | -rw-r--r-- | 8.9 KB |
patch-delta.c | -rw-r--r-- | 2.2 KB |
patch-ids.c | -rw-r--r-- | 2.4 KB |
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path.c | -rw-r--r-- | 18.0 KB |
pathspec.c | -rw-r--r-- | 14.1 KB |
pathspec.h | -rw-r--r-- | 3.2 KB |
pkt-line.c | -rw-r--r-- | 4.5 KB |
pkt-line.h | -rw-r--r-- | 3.0 KB |
preload-index.c | -rw-r--r-- | 2.5 KB |
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prio-queue.c | -rw-r--r-- | 1.9 KB |
prio-queue.h | -rw-r--r-- | 1.4 KB |
progress.c | -rw-r--r-- | 6.1 KB |
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reachable.c | -rw-r--r-- | 6.1 KB |
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read-cache.c | -rw-r--r-- | 54.3 KB |
reflog-walk.c | -rw-r--r-- | 8.1 KB |
reflog-walk.h | -rw-r--r-- | 773 bytes |
refs.c | -rw-r--r-- | 93.4 KB |
refs.h | -rw-r--r-- | 8.7 KB |
remote-curl.c | -rw-r--r-- | 24.2 KB |
remote-testsvn.c | -rw-r--r-- | 8.5 KB |
remote.c | -rw-r--r-- | 55.1 KB |
remote.h | -rw-r--r-- | 7.0 KB |
replace_object.c | -rw-r--r-- | 2.9 KB |
rerere.c | -rw-r--r-- | 18.1 KB |
rerere.h | -rw-r--r-- | 800 bytes |
resolve-undo.c | -rw-r--r-- | 4.3 KB |
resolve-undo.h | -rw-r--r-- | 612 bytes |
revision.c | -rw-r--r-- | 88.6 KB |
revision.h | -rw-r--r-- | 8.0 KB |
run-command.c | -rw-r--r-- | 17.0 KB |
run-command.h | -rw-r--r-- | 3.1 KB |
send-pack.c | -rw-r--r-- | 8.3 KB |
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sequencer.c | -rw-r--r-- | 31.9 KB |
sequencer.h | -rw-r--r-- | 1.0 KB |
server-info.c | -rw-r--r-- | 5.1 KB |
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sha1-array.c | -rw-r--r-- | 1.2 KB |
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sha1_file.c | -rw-r--r-- | 80.9 KB |
sha1_name.c | -rw-r--r-- | 35.7 KB |
shallow.c | -rw-r--r-- | 17.7 KB |
shell.c | -rw-r--r-- | 5.2 KB |
shortlog.h | -rw-r--r-- | 463 bytes |
show-index.c | -rw-r--r-- | 2.2 KB |
sideband.c | -rw-r--r-- | 3.4 KB |
sideband.h | -rw-r--r-- | 262 bytes |
sigchain.c | -rw-r--r-- | 969 bytes |
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streaming.c | -rw-r--r-- | 11.7 KB |
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symlinks.c | -rw-r--r-- | 9.4 KB |
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tar.h | -rw-r--r-- | 644 bytes |
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test-date.c | -rw-r--r-- | 1.4 KB |
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