轨迹详情 — mimo-v2.5-pro · fix-ocaml-gc · t3

{"type": "text", "text": "Async agent launched successfully. (This tool result is internal metadata — never quote or paste any part of it, including the agentId below, into a user-facing reply.)\nagentId: a10a63a99334d49e2 (internal ID - do not mention to user. Use SendMessage with to: 'a10a63a99334d49e2', summary: '<5-10 word recap>' to continue this agent.)\nThe agent is working in the background. You will be notified automatically when it completes. You know nothing about its results until that notification arrives — do not report, assume, or predict them; continue other work or respond to the user in the meantime.\nDo not duplicate this agent's work — avoid working with the same files or topics it is using.\noutput_file: /tmp/claude-0/-app/691e0dcf-ce02-4643-987f-959b08f428e1/tasks/a10a63a99334d49e2.output\nDo NOT Read or tail this file via the shell tool — it is the full subagent JSONL transcript and reading it will overflow your context. If the user asks for progress, say the agent is still running; you'll get a completion notification."}

[metadata] {"isAsync": true, "status": "async_launched", "agentId": "a10a63a99334d49e2", "description": "Explore GC changes", "resolvedModel": "mimo-v2.5-pro", "prompt": "Explore the OCaml codebase at /app to understand the garbage collector changes related to run-length compression of free space in the major heap. Look at:\n1. Recent changes to runtime/ directory, especially files related to sweeping (major_gc.c, sweep.c, etc.)\n2. Any files mentioning \"run-length\" or \"rle\" or compression in the GC context\n3. The heap/allocator structures that might be affected\n4. Check git status or recent modifications\n\nBe thorough - look at the actual code changes, not just file names.", "outputFile": "/tmp/claude-0/-app/691e0dcf-ce02-4643-987f-959b08f428e1/tasks/a10a63a99334d49e2.output", "canReadOutputFile": true}

File does not exist. Note: your current working directory is /app.

[error] tool reported failure

ocaml

[stdout]
ocaml
[metadata] {"noOutputExpected": false}

BOOTSTRAP.adoc
CODE_OF_CONDUCT.md
CONTRIBUTING.md
Changes
HACKING.adoc
INSTALL.adoc
LICENSE
Makefile
Makefile.best_binaries
Makefile.build_config.in
Makefile.common
Makefile.config.in
Makefile.config_if_required
Makefile.cross
Makefile.dev
Makefile.menhir
README.adoc
README.win32.adoc
VERSION
aclocal.m4
api_docgen
appveyor.yml
asmcomp
boot
build-aux
bytecomp
compilerlibs
configure
configure.ac
debugger
driver
dune
dune-project
file_formats
flexdll
lambda
lex
man
manual
middle_end
ocaml-variants.install
ocaml-variants.opam
ocamldoc
ocamltest
otherlibs
parsing
release-info
runtime
stdlib
testsuite

[stdout]
BOOTSTRAP.adoc
CODE_OF_CONDUCT.md
CONTRIBUTING.md
Changes
HACKING.adoc
INSTALL.adoc
LICENSE
Makefile
Makefile.best_binaries
Makefile.build_config.in
Makefile.common
Makefile.config.in
Makefile.config_if_required
Makefile.cross
Makefile.dev
Makefile.menhir
README.adoc
README.win32.adoc
VERSION
aclocal.m4
api_docgen
appveyor.yml
asmcomp
boot
build-aux
bytecomp
compilerlibs
configure
configure.ac
debugger
driver
dune
dune-project
file_formats
flexdll
lambda
lex
man
manual
middle_end
ocaml-variants.install
ocaml-variants.opam
ocamldoc
ocamltest
otherlibs
parsing
release-info
runtime
stdlib
testsuite
[metadata] {"noOutputExpected": false}

1	= Hacking the compiler :camel:
2	
3	This document is a work-in-progress attempt to provide useful
4	information for people willing to inspect or modify the compiler
5	distribution's codebase. Feel free to improve it by sending change
6	proposals for it.
7	
8	If you already have a patch that you would like to contribute to the
9	official distribution, please see link:CONTRIBUTING.md[].
10	
11	=== Your first compiler modification
12	
13	1. Create a new git branch to store your changes.
14	+
15	----
16	git checkout -b my-modification
17	----
18	Usually, this branch wants to be based on `trunk`. If your changes must be on a
19	specific release, use its release branch (*not* the release tag) instead. For
20	example, to make a fix for 4.11.1, base your branch on *4.11* (not on *4.11.1*).
21	The `configure` step for the compiler recognises a development build from the
22	`+dev` in the version number (see file `VERSION`), and release tarballs and the tagged Git commits do
23	not have this which causes some important development things to be disabled
24	(ocamltest and converting C compiler warnings to errors).
25	
26	2. Consult link:INSTALL.adoc[] for build instructions. Here is the gist of it:
27	+
28	----
29	./configure
30	make -j 4
31	----
32	If you are on a release build and need development options, you can add
33	`--enable-ocamltest` (to allow running the testsuite) and `--enable-warn-error`
34	(so you don't get caught by CI later!).
35	
36	3. Try the newly built compiler binaries `ocamlc`, `ocamlopt` or their
37	`.opt` version. To try the toplevel, use:
38	+
39	----
40	make runtop
41	----
42	
43	4. Hack frenetically and keep rebuilding.
44	
45	5. Run the testsuite from time to time.
46	+
47	----
48	make tests
49	----
50	
51	6. You did it, Well done! Consult link:CONTRIBUTING.md[] to send your contribution upstream.
52	
53	See also our <<tips,development tips and tricks>>, for example on how to
54	<<opam-switch,create an opam switch>> to test your modified compiler.
55	
56	=== What to do
57	
58	There is always a lot of potential tasks, both for old and
59	newcomers. Here are various potential projects:
60	
61	* https://github.com/ocaml/ocaml/issues[The OCaml
62	  bugtracker] contains reported bugs and feature requests. Some
63	  changes that should be accessible to newcomers are marked with the
64	  tag link:++https://github.com/ocaml/ocaml/issues?q=is%3Aopen+is%3Aissue+label%3Anewcomer-job++[
65	  newcomer-job].
66	
67	* The
68	  https://github.com/ocamllabs/compiler-hacking/wiki/Things-to-work-on[OCaml
69	  Labs compiler-hacking wiki] contains various ideas of changes to
70	  propose, some easy, some requiring a fair amount of work.
71	
72	* Documentation improvements are always much appreciated, either in
73	  the various `.mli` files or in the official manual
74	  (See link:manual/README.md[]). If you invest effort in understanding
75	  a part of the codebase, submitting a pull request that adds
76	  clarifying comments can be an excellent contribution to help you,
77	  next time, and other code readers.
78	
79	* The https://github.com/ocaml/ocaml[github project] contains a lot of
80	  pull requests, many of them being in dire need of a review -- we
81	  have more people willing to contribute changes than to review
82	  someone else's change. Picking one of them, trying to understand the
83	  code (looking at the code around it) and asking questions about what
84	  you don't understand or what feels odd is super-useful. It helps the
85	  contribution process, and it is also an excellent way to get to know
86	  various parts of the compiler from the angle of a specific aspect or
87	  feature.
88	+
89	Again, reviewing small or medium-sized pull requests is accessible to
90	anyone with OCaml programming experience, and helps maintainers and
91	other contributors. If you also submit pull requests yourself, a good
92	discipline is to review at least as many pull requests as you submit.
93	
94	== Structure of the compiler
95	
96	The compiler codebase can be intimidating at first sight. Here are
97	a few pointers to get started.
98	
99	=== Compilation pipeline
100	
101	==== The driver -- link:driver/[]
102	
103	The driver contains the "main" function of the compilers that drive
104	compilation. It parses the command-line arguments and composes the
105	required compiler passes by calling functions from the various parts
106	of the compiler described below.
107	
108	==== Parsing -- link:parsing/[]
109	
110	Parses source files and produces an Abstract Syntax Tree (AST)
111	(link:parsing/parsetree.mli[] has lot of helpful comments). See
112	link:parsing/HACKING.adoc[].
113	
114	The logic for Camlp4 and Ppx preprocessing is not in link:parsing/[],
115	but in link:driver/[], see link:driver/pparse.mli[] and
116	link:driver/pparse.ml[].
117	
118	==== Typing -- link:typing/[]
119	
120	Type-checks the AST and produces a typed representation of the program
121	(link:typing/typedtree.mli[] has some helpful comments). See
122	link:typing/HACKING.adoc[].
123	
124	==== The bytecode compiler -- link:bytecomp/[]
125	
126	==== The native compiler -- link:middle_end/[] and link:asmcomp/[]
127	
128	=== Runtime system
129	
130	The low-level routines that OCaml programs use during their execution:
131	garbage collection, interaction with the operating system
132	(IO in particular), low-level primitives to manipulate some OCaml data
133	structures, etc. Mostly implemented in C, with some rare bits of
134	assembly code in architecture-specific files. The "includes"
135	corresponding to the `.c` files are in the link:runtime/caml[]
136	subdirectory.
137	
138	Some files are only used by bytecode programs, some only used by
139	native-compiled programs, but most of the runtime code is
140	common. (See `runtime_COMMON_C_SOURCES`, `runtime_BYTECODE_ONLY_C_SOURCES`,
141	and `runtime_NATIVE_ONLY_C_SOURCES` in link:Makefile[] for the list of common,
142	bytecode-only, and native-only source files.)
143	
144	See link:runti

Exit code 128
fatal: not a git repository (or any of the parent directories): .git

[error] tool reported failure

error: Could not access 'HEAD~5..HEAD'

[stdout]
error: Could not access 'HEAD~5..HEAD'
[metadata] {"returnCodeInterpretation": "Files differ", "noOutputExpected": false}

Exit code 128
fatal: not a git repository (or any of the parent directories): .git

[error] tool reported failure

Exit code 129
warning: Not a git repository. Use --no-index to compare two paths outside a working tree
usage: git diff --no-index [<options>] <path> <path>

Diff output format options
    -p, --patch           generate patch
    -s, --no-patch        suppress diff output
    -u                    generate patch
    -U, --unified[=<n>]   generate diffs with <n> lines context
    -W, --[no-]function-context
                          generate diffs with <n> lines context
    --raw                 generate the diff in raw format
    --patch-with-raw      synonym for '-p --raw'
    --patch-with-stat     synonym for '-p --stat'
    --numstat             machine friendly --stat
    --shortstat           output only the last line of --stat
    -X, --dirstat[=<param1,param2>...]
                          output the distribution of relative amount of changes for each sub-directory
    --cumulative          synonym for --dirstat=cumulative
    --dirstat-by-file[=<param1,param2>...]
                          synonym for --dirstat=files,param1,param2...
    --check               warn if changes introduce conflict markers or whitespace errors
    --summary             condensed summary such as creations, renames and mode changes
    --name-only           show only names of changed files
    --name-status         show only names and status of changed files
    --stat[=<width>[,<name-width>[,<count>]]]
                          generate diffstat
    --stat-width <width>  generate diffstat with a given width
    --stat-name-width <width>
                          generate diffstat with a given name width
    --stat-graph-width <width>
                          generate diffstat with a given graph width
    --stat-count <count>  generate diffstat with limited lines
    --[no-]compact-summary
                          generate compact summary in diffstat
    --binary              output a binary diff that can be applied
    --[no-]full-index     show full pre- and post-image object names on the "index" lines
    --[no-]color[=<when>] show colored diff
    --ws-error-highlight <kind>
                          highlight whitespace errors in the 'context', 'old' or 'new' lines in the diff
    -z                    do not munge pathnames and use NULs as output field terminators in --raw or --numstat
    --[no-]abbrev[=<n>]   use <n> digits to display object names
    --src-prefix <prefix> show the given source prefix instead of "a/"
    --dst-prefix <prefix> show the given destination prefix instead of "b/"
    --line-prefix <prefix>
                          prepend an additional prefix to every line of output
    --no-prefix           do not show any source or destination prefix
    --default-prefix      use default prefixes a/ and b/
    --inter-hunk-context <n>
                          show context between diff hunks up to the specified number of lines
    --output-indicator-new <char>
                          specify the character to indicate a new line instead of '+'
    --output-indicator-old <char>
                          specify the character to indicate an old line instead of '-'
    --output-indicator-context <char>
                          specify the character to indicate a context instead of ' '

Diff rename options
    -B, --break-rewrites[=<n>[/<m>]]
                          break complete rewrite changes into pairs of delete and create
    -M, --find-renames[=<n>]
                          detect renames
    -D, --irreversible-delete
                          omit the preimage for deletes
    -C, --find-copies[=<n>]
                          detect copies
    --[no-]find-copies-harder
                          use unmodified files as source to find copies
    --no-renames          disable rename detection
    --[no-]rename-empty   use empty blobs as rename source
    --[no-]follow         continue listing the history of a file beyond renames
    -l <n>                prevent rename/copy detection if the number of rename/copy targets exceeds given limit

Diff algorithm options
    --minimal             produce the smallest possible diff
    -w, --ignore-all-space
                          ignore whitespace when comparing lines
    -b, --ignore-space-change
                          ignore changes in amount of whitespace
    --ignore-space-at-eol ignore changes in whitespace at EOL
    --ignore-cr-at-eol    ignore carrier-return at the end of line
    --ignore-blank-lines  ignore changes whose lines are all blank
    -I, --[no-]ignore-matching-lines <regex>
                          ignore changes whose all lines match <regex>
    --[no-]indent-heuristic
                          heuristic to shift diff hunk boundaries for easy reading
    --patience            generate diff using the "patience diff" algorithm
    --histogram           generate diff using the "histogram diff" algorithm
    --diff-algorithm <algorithm>
                          choose a diff algorithm
    --anchored <text>     generate diff using the "anchored diff" algorithm
    --word-diff[=<mode>]  show word diff, using <mode> to delimit changed words
    --word-diff-regex <regex>
                          use <regex> to decide what a word is
    --color-words[=<regex>]
                          equivalent to --word-diff=color --word-diff-regex=<regex>
    --[no-]color-moved[=<mode>]
                          moved lines of code are colored differently
    --[no-]color-moved-ws <mode>
                          how white spaces are ignored in --color-moved

Other diff options
    --[no-]relative[=<prefix>]
                          when run from subdir, exclude changes outside and show relative paths
    -a, --[no-]text       treat all files as text
    -R                    swap two inputs, reverse the diff
    --[no-]exit-code      exit with 1 if there were differences, 0 otherwise
    --[no-]quiet          disable all output of the program
    --[no-]ext-diff       allow an external diff helper to be executed
    --[n

Exit code 128
fatal: not a git repository (or any of the parent directories): .git

[error] tool reported failure

Exit code 128
fatal: not a git repository (or any of the parent directories): .git

[error] tool reported failure

no .git

[stdout]
no .git
[metadata] {"noOutputExpected": false}

HACKING.adoc
addrmap.c
afl.c
alloc.c
amd64.S
amd64nt.asm
arm64.S
array.c
backtrace.c
backtrace_byt.c
backtrace_nat.c
bigarray.c
blake2.c
callback.c
caml
clambda_checks.c
codefrag.c
compare.c
custom.c
debugger.c
domain.c
dune
dynlink.c
dynlink_nat.c
extern.c
fail.c
fail_byt.c
fail_nat.c
fiber.c
finalise.c
fix_code.c
floats.c
frame_descriptors.c
gc_ctrl.c
gc_stats.c
gen_primitives.sh
gen_primsc.sh
globroots.c
hash.c
instrtrace.c
intern.c
interp.c
ints.c
io.c
lexing.c
lf_skiplist.c
main.c
major_gc.c
md5.c
memory.c
memprof.c
meta.c
minor_gc.c
misc.c
obj.c
parsing.c
platform.c
power.S
printexc.c
prng.c
riscv.S
roots.c
runtime_events.c
s390x.S
sak.c
shared_heap.c
signals.c
signals_nat.c
skiplist.c
startup_aux.c
startup_byt.c
startup_nat.c
str.c
sync.c
sync_posix.h
sys.c
tsan.c
unix.c
weak.c
win32.c
zstd.c

[stdout]
HACKING.adoc
addrmap.c
afl.c
alloc.c
amd64.S
amd64nt.asm
arm64.S
array.c
backtrace.c
backtrace_byt.c
backtrace_nat.c
bigarray.c
blake2.c
callback.c
caml
clambda_checks.c
codefrag.c
compare.c
custom.c
debugger.c
domain.c
dune
dynlink.c
dynlink_nat.c
extern.c
fail.c
fail_byt.c
fail_nat.c
fiber.c
finalise.c
fix_code.c
floats.c
frame_descriptors.c
gc_ctrl.c
gc_stats.c
gen_primitives.sh
gen_primsc.sh
globroots.c
hash.c
instrtrace.c
intern.c
interp.c
ints.c
io.c
lexing.c
lf_skiplist.c
main.c
major_gc.c
md5.c
memory.c
memprof.c
meta.c
minor_gc.c
misc.c
obj.c
parsing.c
platform.c
power.S
printexc.c
prng.c
riscv.S
roots.c
runtime_events.c
s390x.S
sak.c
shared_heap.c
signals.c
signals_nat.c
skiplist.c
startup_aux.c
startup_byt.c
startup_nat.c
str.c
sync.c
sync_posix.h
sys.c
tsan.c
unix.c
weak.c
win32.c
zstd.c
[metadata] {"noOutputExpected": false}

{"type": "text", "text": "Async agent launched successfully. (This tool result is internal metadata — never quote or paste any part of it, including the agentId below, into a user-facing reply.)\nagentId: a4ca0c5ea9f9c8e25 (internal ID - do not mention to user. Use SendMessage with to: 'a4ca0c5ea9f9c8e25', summary: '<5-10 word recap>' to continue this agent.)\nThe agent is working in the background. You will be notified automatically when it completes. You know nothing about its results until that notification arrives — do not report, assume, or predict them; continue other work or respond to the user in the meantime.\nDo not duplicate this agent's work — avoid working with the same files or topics it is using.\noutput_file: /tmp/claude-0/-app/691e0dcf-ce02-4643-987f-959b08f428e1/tasks/a4ca0c5ea9f9c8e25.output\nDo NOT Read or tail this file via the shell tool — it is the full subagent JSONL transcript and reading it will overflow your context. If the user asks for progress, say the agent is still running; you'll get a completion notification."}

[metadata] {"isAsync": true, "status": "async_launched", "agentId": "a4ca0c5ea9f9c8e25", "description": "Find sweep/rle changes", "resolvedModel": "mimo-v2.5-pro", "prompt": "Search the OCaml codebase at /app/ocaml for changes related to run-length encoding/compression of free space in the GC sweep. Look for:\n\n1. Any files with \"rle\" or \"run_length\" or \"run-length\" in the name or content\n2. Search runtime/ directory for recent modifications (compare timestamps if no git)\n3. Look at runtime/major_gc.c and runtime/shared_heap.c for sweep-related code\n4. Check runtime/caml/ directory for header files related to the heap and sweeping\n5. Look for any unusual or new code patterns in the GC that look like user modifications\n\nReport the full content of any modified files, focusing on changes to the sweeping mechanism.", "outputFile": "/tmp/claude-0/-app/691e0dcf-ce02-4643-987f-959b08f428e1/tasks/a4ca0c5ea9f9c8e25.output", "canReadOutputFile": true}

#**************************************************************************
#*                                                                        *
#*                                 OCaml                                  *
#*                                                                        *
#*            Sebastien Hinderer, projet Gallium, INRIA Paris             *
#*                                                                        *
#*   Copyright 2018 Institut National de Recherche en Informatique et     *
#*     en Automatique.                                                    *
#*                                                                        *
#*   All rights reserved.  This file is distributed under the terms of    *
#*   the GNU Lesser General Public License version 2.1, with the          *
#*   special exception on linking described in the file LICENSE.          *
#*                                                                        *
#**************************************************************************

# Process this file with autoconf to produce a configure script.

# Require Autoconf 2.71 for repeatability in CI
AC_PREREQ([2.71])
AC_INIT([OCaml],

[stdout]
#**************************************************************************
#*                                                                        *
#*                                 OCaml                                  *
#*                                                                        *
#*            Sebastien Hinderer, projet Gallium, INRIA Paris             *
#*                                                                        *
#*   Copyright 2018 Institut National de Recherche en Informatique et     *
#*     en Automatique.                                                    *
#*                                                                        *
#*   All rights reserved.  This file is distributed under the terms of    *
#*   the GNU Lesser General Public License version 2.1, with the          *
#*   special exception on linking described in the file LICENSE.          *
#*                                                                        *
#**************************************************************************

# Process this file with autoconf to produce a configure script.

# Require Autoconf 2.71 for repeatability in CI
AC_PREREQ([2.71])
AC_INIT([OCaml],
[metadata] {"noOutputExpected": false}

Not configured yet

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/app

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/bin/bash: line 1: ./configure: No such file or directory
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/app/ocaml/configure

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/app/ocaml/configure
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/bin/bash: line 1: ./configure: No such file or directory

[stdout]
/bin/bash: line 1: ./configure: No such file or directory
[metadata] {"noOutputExpected": false}

Exit code 2
ls: cannot access 'configure': No such file or directory

[error] tool reported failure

Exit code 2
/app
ls: cannot access 'configure': No such file or directory

[error] tool reported failure

/bin/bash: line 1: ./configure: No such file or directory

[stdout]
/bin/bash: line 1: ./configure: No such file or directory
[metadata] {"noOutputExpected": false}

/bin/bash: line 1: ./configure: No such file or directory

[stdout]
/bin/bash: line 1: ./configure: No such file or directory
[metadata] {"noOutputExpected": false}

checking whether the assembler supports --debug-prefix-map... yes
checking whether the assembler supports CFI directives... yes
configure: not using frame pointers
checking whether mmap supports huge pages... yes
checking for patdiff... no
checking for diff... diff
checking whether diff supports --color={auto,always,never}... yes
checking whether diff supports --strip-trailing-cr... yes
checking whether diff supports -u... yes
checking whether mmap supports MAP_STACK... yes
configure: creating ./config.status
config.status: creating Makefile.build_config
config.status: creating Makefile.config
config.status: creating stdlib/sys.ml
config.status: creating manual/src/version.tex
config.status: creating manual/src/html_processing/src/common.ml
config.status: creating otherlibs/dynlink/dynlink_config.ml
config.status: creating utils/config.common.ml
config.status: creating utils/config.generated.ml
config.status: creating compilerlibs/META
config.status: creating otherlibs/dynlink/META
config.status: creating otherlibs/runtime_events/META
config.status: creating stdlib/META
config.status: creating ocamldoc/META
config.status: creating otherlibs/unix/META
config.status: creating otherlibs/str/META
config.status: creating otherlibs/systhreads/META
config.status: creating ocamltest/ocamltest_config.ml
config.status: creating runtime/caml/exec.h
config.status: creating runtime/caml/m.h
config.status: creating runtime/caml/s.h
config.status: creating runtime/caml/version.h
config.status: linking /app/ocaml/file_formats/cmo_format.mli to otherlibs/dynlink/dynlink_cmo_format.mli
config.status: linking /app/ocaml/file_formats/cmxs_format.mli to otherlibs/dynlink/dynlink_cmxs_format.mli
config.status: linking /app/ocaml/otherlibs/dynlink/dynlink_platform_intf.ml to otherlibs/dynlink/dynlink_platform_intf.mli
config.status: linking /app/ocaml/otherlibs/unix/unix_unix.ml to otherlibs/unix/unix.ml
config.status: linking /app/ocaml/ocamltest/ocamltest_unix_real.ml to ocamltest/ocamltest_unix.ml
config.status: executing libtool commands
config.status: executing shebang commands
config.status: executing links commands

[stdout]
checking whether the assembler supports --debug-prefix-map... yes
checking whether the assembler supports CFI directives... yes
configure: not using frame pointers
checking whether mmap supports huge pages... yes
checking for patdiff... no
checking for diff... diff
checking whether diff supports --color={auto,always,never}... yes
checking whether diff supports --strip-trailing-cr... yes
checking whether diff supports -u... yes
checking whether mmap supports MAP_STACK... yes
configure: creating ./config.status
config.status: creating Makefile.build_config
config.status: creating Makefile.config
config.status: creating stdlib/sys.ml
config.status: creating manual/src/version.tex
config.status: creating manual/src/html_processing/src/common.ml
config.status: creating otherlibs/dynlink/dynlink_config.ml
config.status: creating utils/config.common.ml
config.status: creating utils/config.generated.ml
config.status: creating compilerlibs/META
config.status: creating otherlibs/dynlink/META
config.status: creating otherlibs/runtime_events/META
config.status: creating stdlib/META
config.status: creating ocamldoc/META
config.status: creating otherlibs/unix/META
config.status: creating otherlibs/str/META
config.status: creating otherlibs/systhreads/META
config.status: creating ocamltest/ocamltest_config.ml
config.status: creating runtime/caml/exec.h
config.status: creating runtime/caml/m.h
config.status: creating runtime/caml/s.h
config.status: creating runtime/caml/version.h
config.status: linking /app/ocaml/file_formats/cmo_format.mli to otherlibs/dynlink/dynlink_cmo_format.mli
config.status: linking /app/ocaml/file_formats/cmxs_format.mli to otherlibs/dynlink/dynlink_cmxs_format.mli
config.status: linking /app/ocaml/otherlibs/dynlink/dynlink_platform_intf.ml to otherlibs/dynlink/dynlink_platform_intf.mli
config.status: linking /app/ocaml/otherlibs/unix/unix_unix.ml to otherlibs/unix/unix.ml
config.status: linking /app/ocaml/ocamltest/ocamltest_unix_real.ml to ocamltest/ocamltest_unix.ml
config.status: executing libtool commands
config.status: executing shebang commands
config.status: executing links commands
[metadata] {"noOutputExpected": false}

make: *** No targets specified and no makefile found.  Stop.

[stdout]
make: *** No targets specified and no makefile found.  Stop.
[metadata] {"noOutputExpected": false}

make: *** No targets specified and no makefile found.  Stop.

[stdout]
make: *** No targets specified and no makefile found.  Stop.
[metadata] {"noOutputExpected": false}

make: *** No targets specified and no makefile found.  Stop.

[stdout]
make: *** No targets specified and no makefile found.  Stop.
[metadata] {"noOutputExpected": false}

make: *** No targets specified and no makefile found.  Stop.

[stdout]
make: *** No targets specified and no makefile found.  Stop.
[metadata] {"noOutputExpected": false}

/app
make: *** No targets specified and no makefile found.  Stop.

[stdout]
/app
make: *** No targets specified and no makefile found.  Stop.
[metadata] {"noOutputExpected": false}

/app/ocaml/Makefile

[stdout]
/app/ocaml/Makefile
[metadata] {"noOutputExpected": false}

Exit code 2
/app/config.status
Config was created in /app

[error] tool reported failure

config.status: creating otherlibs/dynlink/META
config.status: creating otherlibs/runtime_events/META
config.status: creating stdlib/META
config.status: creating ocamldoc/META
config.status: creating otherlibs/unix/META
config.status: creating otherlibs/str/META
config.status: creating otherlibs/systhreads/META
config.status: creating ocamltest/ocamltest_config.ml
config.status: creating runtime/caml/exec.h
config.status: creating runtime/caml/m.h
config.status: creating runtime/caml/s.h
config.status: creating runtime/caml/version.h
config.status: linking file_formats/cmo_format.mli to otherlibs/dynlink/dynlink_cmo_format.mli
config.status: linking file_formats/cmxs_format.mli to otherlibs/dynlink/dynlink_cmxs_format.mli
config.status: linking otherlibs/dynlink/dynlink_platform_intf.ml to otherlibs/dynlink/dynlink_platform_intf.mli
config.status: linking otherlibs/unix/unix_unix.ml to otherlibs/unix/unix.ml
config.status: linking ocamltest/ocamltest_unix_real.ml to ocamltest/ocamltest_unix.ml
config.status: executing libtool commands
config.status: executing shebang commands
config.status: executing links commands

[stdout]
config.status: creating otherlibs/dynlink/META
config.status: creating otherlibs/runtime_events/META
config.status: creating stdlib/META
config.status: creating ocamldoc/META
config.status: creating otherlibs/unix/META
config.status: creating otherlibs/str/META
config.status: creating otherlibs/systhreads/META
config.status: creating ocamltest/ocamltest_config.ml
config.status: creating runtime/caml/exec.h
config.status: creating runtime/caml/m.h
config.status: creating runtime/caml/s.h
config.status: creating runtime/caml/version.h
config.status: linking file_formats/cmo_format.mli to otherlibs/dynlink/dynlink_cmo_format.mli
config.status: linking file_formats/cmxs_format.mli to otherlibs/dynlink/dynlink_cmxs_format.mli
config.status: linking otherlibs/dynlink/dynlink_platform_intf.ml to otherlibs/dynlink/dynlink_platform_intf.mli
config.status: linking otherlibs/unix/unix_unix.ml to otherlibs/unix/unix.ml
config.status: linking ocamltest/ocamltest_unix_real.ml to ocamltest/ocamltest_unix.ml
config.status: executing libtool commands
config.status: executing shebang commands
config.status: executing links commands
[metadata] {"noOutputExpected": false}

make coldstart
make[1]: Entering directory '/app/ocaml'
  GEN runtime/primitives
  GEN runtime/caml/opnames.h
  GEN runtime/caml/jumptbl.h
  MKEXE runtime/sak
  GEN runtime/prims.c
  GEN runtime/build_config.h
  CC runtime/prims.o
  CC runtime/addrmap.b.o
  CC runtime/afl.b.o
  CC runtime/alloc.b.o
  CC runtime/array.b.o
  CC runtime/backtrace.b.o
  CC runtime/bigarray.b.o
  CC runtime/blake2.b.o
  CC runtime/callback.b.o
  CC runtime/codefrag.b.o
  CC runtime/compare.b.o
  CC runtime/custom.b.o
  CC runtime/debugger.b.o
  CC runtime/domain.b.o
  CC runtime/dynlink.b.o
  CC runtime/extern.b.o
  CC runtime/fail.b.o
  CC runtime/fiber.b.o
  CC runtime/finalise.b.o
  CC runtime/floats.b.o
  CC runtime/gc_ctrl.b.o
  CC runtime/gc_stats.b.o
  CC runtime/globroots.b.o
  CC runtime/hash.b.o
  CC runtime/intern.b.o
  CC runtime/ints.b.o
  CC runtime/io.b.o
  CC runtime/lexing.b.o
  CC runtime/lf_skiplist.b.o
  CC runtime/main.b.o
  CC runtime/major_gc.b.o
  CC runtime/md5.b.o
  CC runtime/memory.b.o
  CC runtime/memprof.b.o
  CC runtime/meta.b.o
  CC runtime/minor_gc.b.o
  CC runtime/misc.b.o
  CC runtime/obj.b.o
  CC runtime/parsing.b.o
  CC runtime/platform.b.o
  CC runtime/printexc.b.o
  CC runtime/prng.b.o
  CC runtime/roots.b.o
  CC runtime/runtime_events.b.o
  CC runtime/shared_heap.b.o
  CC runtime/signals.b.o
  CC runtime/skiplist.b.o
  CC runtime/startup_aux.b.o
  CC runtime/str.b.o
  CC runtime/sync.b.o
  CC runtime/sys.b.o
  CC runtime/unix.b.o
  CC runtime/weak.b.o
  CC runtime/backtrace_byt.b.o
  CC runtime/fail_byt.b.o
  CC runtime/fix_code.b.o
  CC runtime/interp.b.o
  CC runtime/startup_byt.b.o
  CC runtime/zstd.b.o
  MKLIB runtime/libcamlrun.a
  MKEXE runtime/ocamlrun
cp runtime/ocamlrun boot/ocamlrun
make -C stdlib OCAMLRUN='$(ROOTDIR)/boot/ocamlrun' USE_BOOT_OCAMLC=true all
make[2]: Entering directory '/app/ocaml/stdlib'
  OCAMLC camlinternalFormatBasics.cmi
  CC header.o
make[2]: *** [Makefile:147: camlinternalFormatBasics.cmi] Segmentation fault
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/app/ocaml/stdlib'
make[1]: *** [Makefile:696: coldstart] Error 2
make[1]: Leaving directory '/app/ocaml'
make: *** [Makefile:855: world.opt] Error 2

[stdout]
make coldstart
make[1]: Entering directory '/app/ocaml'
  GEN runtime/primitives
  GEN runtime/caml/opnames.h
  GEN runtime/caml/jumptbl.h
  MKEXE runtime/sak
  GEN runtime/prims.c
  GEN runtime/build_config.h
  CC runtime/prims.o
  CC runtime/addrmap.b.o
  CC runtime/afl.b.o
  CC runtime/alloc.b.o
  CC runtime/array.b.o
  CC runtime/backtrace.b.o
  CC runtime/bigarray.b.o
  CC runtime/blake2.b.o
  CC runtime/callback.b.o
  CC runtime/codefrag.b.o
  CC runtime/compare.b.o
  CC runtime/custom.b.o
  CC runtime/debugger.b.o
  CC runtime/domain.b.o
  CC runtime/dynlink.b.o
  CC runtime/extern.b.o
  CC runtime/fail.b.o
  CC runtime/fiber.b.o
  CC runtime/finalise.b.o
  CC runtime/floats.b.o
  CC runtime/gc_ctrl.b.o
  CC runtime/gc_stats.b.o
  CC runtime/globroots.b.o
  CC runtime/hash.b.o
  CC runtime/intern.b.o
  CC runtime/ints.b.o
  CC runtime/io.b.o
  CC runtime/lexing.b.o
  CC runtime/lf_skiplist.b.o
  CC runtime/main.b.o
  CC runtime/major_gc.b.o
  CC runtime/md5.b.o
  CC runtime/memory.b.o
  CC runtime/memprof.b.o
  CC runtime/meta.b.o
  CC runtime/minor_gc.b.o
  CC runtime/misc.b.o
  CC runtime/obj.b.o
  CC runtime/parsing.b.o
  CC runtime/platform.b.o
  CC runtime/printexc.b.o
  CC runtime/prng.b.o
  CC runtime/roots.b.o
  CC runtime/runtime_events.b.o
  CC runtime/shared_heap.b.o
  CC runtime/signals.b.o
  CC runtime/skiplist.b.o
  CC runtime/startup_aux.b.o
  CC runtime/str.b.o
  CC runtime/sync.b.o
  CC runtime/sys.b.o
  CC runtime/unix.b.o
  CC runtime/weak.b.o
  CC runtime/backtrace_byt.b.o
  CC runtime/fail_byt.b.o
  CC runtime/fix_code.b.o
  CC runtime/interp.b.o
  CC runtime/startup_byt.b.o
  CC runtime/zstd.b.o
  MKLIB runtime/libcamlrun.a
  MKEXE runtime/ocamlrun
cp runtime/ocamlrun boot/ocamlrun
make -C stdlib OCAMLRUN='$(ROOTDIR)/boot/ocamlrun' USE_BOOT_OCAMLC=true all
make[2]: Entering directory '/app/ocaml/stdlib'
  OCAMLC camlinternalFormatBasics.cmi
  CC header.o
make[2]: *** [Makefile:147: camlinternalFormatBasics.cmi] Segmentation fault
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/app/ocaml/stdlib'
make[1]: *** [Makefile:696: coldstart] Error 2
make[1]: Leaving directory '/app/ocaml'
make: *** [Makefile:855: world.opt] Error 2
[metadata] {"noOutputExpected": false}

1	/**************************************************************************/
2	/*                                                                        */
3	/*                                 OCaml                                  */
4	/*                                                                        */
5	/*      KC Sivaramakrishnan, Indian Institute of Technology, Madras       */
6	/*                 Stephen Dolan, University of Cambridge                 */
7	/*                                                                        */
8	/*   Copyright 2015 Indian Institute of Technology, Madras                */
9	/*   Copyright 2015 University of Cambridge                               */
10	/*                                                                        */
11	/*   All rights reserved.  This file is distributed under the terms of    */
12	/*   the GNU Lesser General Public License version 2.1, with the          */
13	/*   special exception on linking described in the file LICENSE.          */
14	/*                                                                        */
15	/**************************************************************************/
16	#define CAML_INTERNALS
17	
18	#include <stdbool.h>
19	#include <stdlib.h>
20	#include <string.h>
21	#include <assert.h>
22	#include "caml/addrmap.h"
23	#include "caml/custom.h"
24	#include "caml/runtime_events.h"
25	#include "caml/fail.h"
26	#include "caml/fiber.h" /* for verification */
27	#include "caml/gc.h"
28	#include "caml/globroots.h"
29	#include "caml/major_gc.h"
30	#include "caml/memory.h"
31	#include "caml/memprof.h"
32	#include "caml/mlvalues.h"
33	#include "caml/platform.h"
34	#include "caml/roots.h"
35	#include "caml/shared_heap.h"
36	#include "caml/sizeclasses.h"
37	#include "caml/startup_aux.h"
38	#include "caml/weak.h"
39	
40	CAMLexport atomic_uintnat caml_compactions_count;
41	
42	typedef unsigned int sizeclass;
43	
44	/* Initial MARKED, UNMARKED, and GARBAGE values; any permutation would work */
45	struct global_heap_state caml_global_heap_state = {
46	  0 << HEADER_COLOR_SHIFT,
47	  1 << HEADER_COLOR_SHIFT,
48	  2 << HEADER_COLOR_SHIFT,
49	};
50	
51	typedef struct pool {
52	  struct pool* next;
53	  value* next_obj;
54	  caml_domain_state* owner;
55	  sizeclass sz;
56	} pool;
57	static_assert(sizeof(pool) == Bsize_wsize(POOL_HEADER_WSIZE), "");
58	#define POOL_SLAB_WOFFSET(sz) (POOL_HEADER_WSIZE + wastage_sizeclass[sz])
59	#define POOL_FIRST_BLOCK(p, sz) ((header_t*)(p) + POOL_SLAB_WOFFSET(sz))
60	#define POOL_END(p) ((header_t*)(p) + POOL_WSIZE)
61	
62	
63	#define POOL_BLOCK_FREE_HD(hd) \
64	  (Tag_hd(hd) == No_scan_tag && (Color_hd(hd) == NOT_MARKABLE))
65	#define POOL_BLOCK_FREE_HP(p) (POOL_BLOCK_FREE_HD(Hd_hp(p)))
66	#define POOL_FREE_HEADER(wosize) Make_header(wosize, No_scan_tag, NOT_MARKABLE)
67	
68	typedef struct large_alloc {
69	  caml_domain_state* owner;
70	  struct large_alloc* next;
71	} large_alloc;
72	static_assert(sizeof(large_alloc) % sizeof(value) == 0, "");
73	#define LARGE_ALLOC_HEADER_SZ sizeof(large_alloc)
74	
75	static struct {
76	  caml_plat_mutex lock;
77	  pool* free;
78	
79	  /* these only contain swept memory of terminated domains*/
80	  struct heap_stats stats;
81	  _Atomic(pool*) global_avail_pools[NUM_SIZECLASSES];
82	  _Atomic(pool*) global_full_pools[NUM_SIZECLASSES];
83	  large_alloc* global_large;
84	} pool_freelist = {
85	  CAML_PLAT_MUTEX_INITIALIZER,
86	  NULL,
87	  { 0, },
88	  { NULL, },
89	  { NULL, },
90	  NULL
91	};
92	
93	/* readable and writable only by the current thread */
94	struct caml_heap_state {
95	  pool* avail_pools[NUM_SIZECLASSES];
96	  pool* full_pools[NUM_SIZECLASSES];
97	  pool* unswept_avail_pools[NUM_SIZECLASSES];
98	  pool* unswept_full_pools[NUM_SIZECLASSES];
99	
100	  large_alloc* swept_large;
101	  large_alloc* unswept_large;
102	
103	  sizeclass next_to_sweep;
104	
105	  caml_domain_state* owner;
106	
107	  struct heap_stats stats;
108	};
109	
110	struct compact_pool_stat {
111	  int free_blocks;
112	  int live_blocks;
113	};
114	
115	/* You need to hold the [pool_freelist] lock to call these functions. */
116	static void orphan_heap_stats_with_lock(struct caml_heap_state *);
117	static void adopt_pool_stats_with_lock(struct caml_heap_state *,
118	                                       pool *, sizeclass);
119	static void adopt_all_pool_stats_with_lock(struct caml_heap_state *adopter);
120	
121	
122	struct caml_heap_state* caml_init_shared_heap (void) {
123	  struct caml_heap_state* heap;
124	
125	  heap = caml_stat_alloc_noexc(sizeof(struct caml_heap_state));
126	  if(heap != NULL) {
127	    for (int i = 0; i<NUM_SIZECLASSES; i++) {
128	      heap->avail_pools[i] = heap->full_pools[i] =
129	        heap->unswept_avail_pools[i] = heap->unswept_full_pools[i] = 0;
130	    }
131	    heap->next_to_sweep = 0;
132	    heap->swept_large = NULL;
133	    heap->unswept_large = NULL;
134	    heap->owner = Caml_state;
135	
136	    memset(&heap->stats, 0, sizeof(heap->stats));
137	  }
138	  return heap;
139	}
140	
141	static int move_all_pools(pool** src, _Atomic(pool*)* dst,
142	                          caml_domain_state* new_owner) {
143	  int count = 0;
144	  while (*src) {
145	    pool* p = *src;
146	    *src = p->next;
147	    p->owner = new_owner;
148	    p->next = *dst;
149	    *dst = p;
150	    count++;
151	  }
152	  return count;
153	}
154	
155	void caml_orphan_shared_heap(struct caml_heap_state* heap) {
156	  int released = 0, released_large = 0;
157	
158	  caml_plat_lock_blocking(&pool_freelist.lock);
159	  for (int i = 0; i < NUM_SIZECLASSES; i++) {
160	    released +=
161	      move_all_pools(&heap->avail_pools[i],
162	                     &pool_freelist.global_avail_pools[i], NULL);
163	
164	    released +=
165	      move_all_pools(&heap->full_pools[i],
166	                     &pool_freelist.global_full_pools[i], NULL);
167	
168	    /* should be swept by now */
169	    CAMLassert(!heap->unswept_avail_pools[i]);
170	    CAMLassert(!

1	/**************************************************************************/
2	/*                                                                        */
3	/*                                 OCaml                                  */
4	/*                                                                        */
5	/*              Damien Doligez, projet Para, INRIA Rocquencourt           */
6	/*                                                                        */
7	/*   Copyright 1996 Institut National de Recherche en Informatique et     */
8	/*     en Automatique.                                                    */
9	/*                                                                        */
10	/*   All rights reserved.  This file is distributed under the terms of    */
11	/*   the GNU Lesser General Public License version 2.1, with the          */
12	/*   special exception on linking described in the file LICENSE.          */
13	/*                                                                        */
14	/**************************************************************************/
15	
16	#define CAML_INTERNALS
17	
18	#include <stdlib.h>
19	#include <string.h>
20	#include <math.h>
21	#include <stdbool.h>
22	
23	#include "caml/addrmap.h"
24	#include "caml/config.h"
25	#include "caml/codefrag.h"
26	#include "caml/domain.h"
27	#include "caml/runtime_events.h"
28	#include "caml/fail.h"
29	#include "caml/fiber.h"
30	#include "caml/finalise.h"
31	#include "caml/globroots.h"
32	#include "caml/gc_stats.h"
33	#include "caml/memory.h"
34	#include "caml/memprof.h"
35	#include "caml/mlvalues.h"
36	#include "caml/platform.h"
37	#include "caml/roots.h"
38	#include "caml/signals.h"
39	#include "caml/shared_heap.h"
40	#include "caml/startup_aux.h"
41	#include "caml/weak.h"
42	
43	/* Default speed setting for the major GC. */
44	_Atomic uintnat caml_percent_free = Percent_free_def;
45	
46	/* This variable is only written with the world stopped, so it need not be
47	   atomic */
48	uintnat caml_major_cycles_completed = 0;
49	
50	/* [num_domains_to_sweep] records the number of domains to sweep in the current
51	   major cycle. The number is set to the [num_domains_in_stw] at the start of
52	   the cycle and _strictly decreases_ to 0.
53	
54	   Domains created in a given cycle will not have any sweep work in that cycle.
55	   Sweep changes GARBAGE coloured objects in the domain's own pools to FREE
56	   (not a distinct colour; object header is set to 0) and adds them to the free
57	   list. No object will have the GARBAGE colour in the domain's own pools since
58	   the domain starts with an empty pool with no objects and new objects are
59	   allocated with colour MARKED. Hence, they do not affect
60	   [num_domains_to_sweep].
61	
62	   Terminating domains terminate after sweeping is complete for their domain.
63	   */
64	static atomic_uintnat num_domains_to_sweep;
65	
66	/* [num_domains_to_mark] records the number of domains to mark in the current
67	   major cycle. The number is set to the [num_domains_in_stw] at the start of
68	   the cycle. The value of [num_domains_to_mark] may decrease or increase.
69	
70	   [num_domains_to_mark] may grow larger than the value of [num_domains_in_stw]
71	   at the start of the cycle. This is because [caml_modify] may push a block
72	   into a potentially empty mark stack of the newly spawned domain.
73	
74	   Terminating domains empty their mark stack before terminating. */
75	static atomic_uintnat num_domains_to_mark;
76	
77	/* [num_domains_to_ephe_sweep] is set to the [participating_count] at the start
78	   of the [Phase_sweep_ephe] and strictly decreases. */
79	static atomic_uintnat num_domains_to_ephe_sweep;
80	
81	/* [num_domains_to_final_update_first] and [num_domains_to_final_update_last]
82	   are initialised to [num_domains_in_stw] at the start of the cycle. Whenever
83	   a domain finishes processing its first or last finalisers, it decrements the
84	   appropriate counter.
85	
86	   Newly created domains increment both the counters. Terminating domain
87	   orphans its finalisers and then decrements the counters. See
88	   [caml_final_domain_terminate]. */
89	static atomic_uintnat num_domains_to_final_update_first;
90	static atomic_uintnat num_domains_to_final_update_last;
91	
92	/* When domains terminate, they will orphan their finalisers. As mentioned in
93	   the comment attached to [num_domains_to_final_update_*] counters, a domain
94	   will decrement the counters when the corresponding finalisers are processed
95	   for that domain. We would like to preserve this invariant when adopting
96	   orphaned finalisers. To this end, we orphan and adopt finalisers only in
97	   [Phase_sweep_and_mark_main] when [num_domains_to_final_update_*] counters
98	   have not been decremented for the domain yet.
99	
100	   [num_domains_orphaning_finalisers] keeps a count of the number of domains
101	   currently orphaning finalisers. This counter is only used in the
102	   [Phase_sweep_and_mark_main] to determine whether to proceed to
103	   [Phase_mark_final]. If domains are currently orphaning finalisers, we remain
104	   in [Phase_sweep_and_mark_main] so that the orphaned finalisers can be
105	   adopted before moving onto [Phase_mark_final] where the [GC.finalise]
106	   (finalise first) finalisers are processed. */
107	static atomic_uintnat num_domains_orphaning_finalisers = 0;
108	
109	enum global_roots_status{
110	  WORK_UNSTARTED,
111	  WORK_STARTED
112	};
113	static atomic_uintnat domain_global_roots_started;
114	
115	gc_phase_t caml_gc_phase;
116	
117	/* The caml_gc_phase global is only ever updated at the end of the STW
118	   section, by the last domain leaving a barrier. This means that no
119	   synchronization is required on most accesses.
120	
121	   We know of two situations in the runtime that could run in parallel
122	   with a phase update, and cannot safely access the gc phase:
123	
124	   - The caml_domain_terminate logic runs after th

542	/* Sweeping of the major heap shared pools */
543	static intnat pool_sweep(struct caml_heap_state* local, pool** plist,
544	                         sizeclass sz, int release_to_global_pool) {
545	  intnat work;
546	  pool* a = *plist;
547	  if (!a) return 0;
548	  *plist = a->next;
549	
550	  {
551	    header_t* p = POOL_FIRST_BLOCK(a, sz);
552	    header_t* last_free_block = NULL;
553	    const header_t* end = POOL_END(a);
554	    const mlsize_t wh = wsize_sizeclass[sz];
555	    int all_used = 1;
556	    struct heap_stats* s = &local->stats;
557	
558	    CAMLassert(a->owner == local->owner);
559	
560	    a->next_obj = 0;
561	
562	    /* note that the below will have to be changed for the new GC pacing
563	      logic */
564	    work = end - p;
565	    do {
566	      header_t hd = (header_t)atomic_load_relaxed((atomic_uintnat*)p);
567	
568	      if( (char*)p + caml_plat_pagesize < (char*)end ) {
569	        caml_prefetch((char*)p + caml_plat_pagesize);
570	      }
571	
572	      /* The pools mark a block as being free by setting the tag to No_scan_tag
573	        and the color to NOT_MARKABLE. The wosize is used to indicate the
574	        number of contiguous free blocks that follow. The first field is a
575	        pointer to the next free block beyond the immediately following
576	        contiguous free blocks (if any). */
577	
578	      /* Check if the current block is garbage, if it is turn it into a free
579	      block */
580	      if (Has_status_hd(hd, caml_global_heap_state.GARBAGE)) {
581	        CAMLassert(Whsize_hd(hd) <= wh);
582	        if (Tag_hd (hd) == Custom_tag) {
583	          void (*final_fun)(value) = Custom_ops_val(Val_hp(p))->finalize;
584	          if (final_fun != NULL) final_fun(Val_hp(p));
585	        }
586	
587	        /* add to freelist. This could be optimised, we don't need
588	        to write the free header if we're going to merge it with a prior
589	        free block but it makes this codepath more complex. */
590	        *p = POOL_FREE_HEADER(0);
591	
592	        CAMLassert(Is_block((value)p));
593	#ifdef DEBUG
594	        for (mlsize_t i = 1, wo = Wosize_whsize(wh); i < wo; i++) {
595	          Field(Val_hp(p), i) = Debug_free_major;
596	        }
597	#endif
598	
599	        all_used = 0;
600	        /* update stats */
601	        s->pool_live_blocks--;
602	        s->pool_live_words -= Whsize_hd(hd);
603	        local->owner->swept_words += Whsize_hd(hd);
604	        s->pool_frag_words -= (wh - Whsize_hd(hd));
605	
606	        /* reload hd */
607	        hd = POOL_FREE_HEADER(0);
608	      }
609	
610	      /* If the current block was garbage (and is now a free block) or was
611	      initially a free block, see if we can merge it with the last free block we
612	      encountered or if we cannot then update the pointer in the last free block
613	      to point to this one */
614	      if (POOL_BLOCK_FREE_HD(hd)) {
615	        /* if any block is free then this is no longer a full pool */
616	        all_used = 0;
617	
618	        /* if there was a free block before us, check first if we can
619	           merge with it */
620	        if( last_free_block ) {
621	          CAMLassert(POOL_BLOCK_FREE_HP(last_free_block));
622	
623	          /* check if we can merge with the last free block */
624	          if( last_free_block + (1 + Wosize_hp(last_free_block)) * wh == p ) {
625	            /* if we can then update the wosize of the last free block */
626	            *last_free_block = POOL_FREE_HEADER(Wosize_hp(last_free_block)
627	                                                  + Wosize_hd(hd) + 1);
628	          } else {
629	            /* in this case there's a non-free block between us so update
630	                the next pointer */
631	            last_free_block[1] = (value)p;
632	
633	            last_free_block = p;
634	          }
635	        } else {
636	          /* if we're the first free block then set the next_obj pointer for
637	            the pool (which indicates the start of the freelist) */
638	          a->next_obj = (value*)p;
639	
640	          last_free_block = p;
641	        }
642	
643	        /* add the free blocks following this block, skipping over them */
644	        p += wh * Wosize_hd(hd);
645	      } else {
646	        /* there's still a live block, the pool can't be released to the global
647	            freelist */
648	        release_to_global_pool = 0;
649	      }
650	      p += Whsize_hd(hd);
651	    } while (p + wh <= end);
652	    CAMLassert(p == end);
653	
654	    if( !all_used ) {
655	      /* the last free block should have 0 as its next pointer */
656	      last_free_block[1] = 0;
657	    }
658	
659	    CAMLassert(
660	      /* if all spaces are used then next_obj should be 0 */
661	      (all_used && !a->next_obj)
662	      /* otherwise it should point to a free block */
663	      || (!all_used && POOL_BLOCK_FREE_HP(a->next_obj))
664	    );
665	
666	    if (release_to_global_pool) {
667	      pool_release(local, a, sz);
668	    } else {
669	      pool** list = all_used ? &local->full_pools[sz] : &local->avail_pools[sz];
670	      a->next = *list;
671	      *list = a;
672	    }
673	  }
674	
675	  return work;
676	}
677	
678	static intnat large_alloc_sweep(struct caml_heap_state* local) {
679	  value* p;
680	  header_t hd;
681	  large_alloc* a = local->unswept_large;

[metadata] {"type": "text", "file": {"filePath": "/app/ocaml/runtime/shared_heap.c", "content": "/* Sweeping of the major heap shared pools */\nstatic intnat pool_sweep(struct caml_heap_state* local, pool** plist,\n                         sizeclass sz, int release_to_global_pool) {\n  intnat work;\n  pool* a = *plist;\n  if (!a) return 0;\n  *plist = a->next;\n\n  {\n    header_t* p = POOL_FIRST_BLOCK(a, sz);\n    header_t* last_free_block = NULL;\n    const header_t* end = POOL_END(a);\n    const mlsize_t wh = wsize_sizeclass[sz];\n    int all_used = 1;\n    struct heap_stats* s = &local->stats;\n\n    CAMLassert(a->owner == local->owne

1110	static void compact_update_pools(pool *cur_pool)
1111	{
1112	  while (cur_pool) {
1113	    header_t* p = POOL_FIRST_BLOCK(cur_pool, cur_pool->sz);
1114	    header_t* end = POOL_END(cur_pool);
1115	    mlsize_t wh = wsize_sizeclass[cur_pool->sz];
1116	
1117	    while (p + wh <= end) {
1118	      if (!POOL_BLOCK_FREE_HP(p)) {
1119	        if (Has_status_val(Val_hp(p), caml_global_heap_state.UNMARKED)) {
1120	          compact_update_block(p);
1121	        }
1122	      } else {
1123	        /* Skip over free blocks */
1124	        p += wh * Wosize_hp(p);
1125	      }
1126	      p += wh;
1127	    }
1128	    cur_pool = cur_pool->next;
1129	  }

[metadata] {"type": "text", "file": {"filePath": "/app/ocaml/runtime/shared_heap.c", "content": "static void compact_update_pools(pool *cur_pool)\n{\n  while (cur_pool) {\n    header_t* p = POOL_FIRST_BLOCK(cur_pool, cur_pool->sz);\n    header_t* end = POOL_END(cur_pool);\n    mlsize_t wh = wsize_sizeclass[cur_pool->sz];\n\n    while (p + wh <= end) {\n      if (!POOL_BLOCK_FREE_HP(p)) {\n        if (Has_status_val(Val_hp(p), caml_global_heap_state.UNMARKED)) {\n          compact_update_block(p);\n        }\n      } else {\n        /* Skip over free blocks */\n        p += wh * Wosize_hp(p);\n      }\n      p += wh;\n    }\n    cur_pool = cur_pool->next;\n  }", "numLines": 20, "startLine": 1110, "totalLines": 1684}}

287	static void calc_pool_stats(pool* a, sizeclass sz, struct heap_stats* s)
288	{
289	  header_t* p = POOL_FIRST_BLOCK(a, sz);
290	  header_t* end = POOL_END(a);
291	  mlsize_t wh = wsize_sizeclass[sz];
292	  s->pool_frag_words += POOL_SLAB_WOFFSET(sz);
293	
294	  while (p + wh <= end) {
295	    header_t hd = (header_t)atomic_load_relaxed((atomic_uintnat*)p);
296	    if (!POOL_BLOCK_FREE_HD(hd)) {
297	      s->pool_live_words += Whsize_hd(hd);
298	      s->pool_frag_words += wh - Whsize_hd(hd);
299	      s->pool_live_blocks++;
300	    } else {
301	      p += wh * Wosize_hd(hd); /* skip contiguous free blocks */
302	    }
303	
304	    p += wh;
305	  }
306	  CAMLassert(end == p);
307	  s->pool_words += POOL_WSIZE;
308	}

[metadata] {"type": "text", "file": {"filePath": "/app/ocaml/runtime/shared_heap.c", "content": "static void calc_pool_stats(pool* a, sizeclass sz, struct heap_stats* s)\n{\n  header_t* p = POOL_FIRST_BLOCK(a, sz);\n  header_t* end = POOL_END(a);\n  mlsize_t wh = wsize_sizeclass[sz];\n  s->pool_frag_words += POOL_SLAB_WOFFSET(sz);\n\n  while (p + wh <= end) {\n    header_t hd = (header_t)atomic_load_relaxed((atomic_uintnat*)p);\n    if (!POOL_BLOCK_FREE_HD(hd)) {\n      s->pool_live_words += Whsize_hd(hd);\n      s->pool_frag_words += wh - Whsize_hd(hd);\n      s->pool_live_blocks++;\n    } else {\n      p += wh * Wosize_hd(hd); /* skip contiguous free blocks */\n    }\n\n    p += wh;\n  }\n  CAMLassert(end == p);\n  s->pool_words += POOL_WSIZE;\n}", "numLines": 22, "startLine": 287, "totalLines": 1684}}

776	    while (p + wh <= end) {
777	      header_t hd = (header_t)atomic_load_relaxed((atomic_uintnat*)p);
778	      if (!POOL_BLOCK_FREE_HD(hd)) {
779	        CAMLassert(Whsize_hd(hd) <= wh);
780	        if (Tag_hd (hd) == Custom_tag) {
781	          void (*final_fun)(value) = Custom_ops_val(Val_hp(p))->finalize;
782	          if (final_fun != NULL) final_fun(Val_hp(p));
783	        }
784	        atomic_store_relaxed((atomic_uintnat*)p, 0);
785	        p[1] = (value)0;
786	      } else {
787	        p += wh * Wosize_hd(hd);
788	      }
789	      p += wh;

[metadata] {"type": "text", "file": {"filePath": "/app/ocaml/runtime/shared_heap.c", "content": "    while (p + wh <= end) {\n      header_t hd = (header_t)atomic_load_relaxed((atomic_uintnat*)p);\n      if (!POOL_BLOCK_FREE_HD(hd)) {\n        CAMLassert(Whsize_hd(hd) <= wh);\n        if (Tag_hd (hd) == Custom_tag) {\n          void (*final_fun)(value) = Custom_ops_val(Val_hp(p))->finalize;\n          if (final_fun != NULL) final_fun(Val_hp(p));\n        }\n        atomic_store_relaxed((atomic_uintnat*)p, 0);\n        p[1] = (value)0;\n      } else {\n        p += wh * Wosize_hd(hd);\n      }\n      p += wh;", "numLines": 14, "startLine": 776, "totalLines": 1684}}

1559	static void verify_pool(pool* a, sizeclass sz, struct mem_stats* s) {
1560	  for (value *v = a->next_obj; v; v = (value*)v[1]) {
1561	    CAMLassert(POOL_BLOCK_FREE_HP(v));
1562	  }
1563	
1564	  {
1565	    header_t* p = POOL_FIRST_BLOCK(a, sz);
1566	    header_t* end = POOL_END(a);
1567	    mlsize_t wh = wsize_sizeclass[sz];
1568	    s->overhead += POOL_SLAB_WOFFSET(sz);
1569	
1570	    while (p + wh <= end) {
1571	      /* This header can be read here and concurrently marked by the GC, but
1572	         this is fine: marking can only turn UNMARKED objects into MARKED or
1573	         NOT_MARKABLE, which is of no consequence for this verification
1574	         (namely, that there is no garbage left). */
1575	      header_t hd = Hd_hp(p);
1576	      CAMLassert(
1577	        POOL_BLOCK_FREE_HD(hd) ||
1578	          !Has_status_hd(hd, caml_global_heap_state.GARBAGE)
1579	      );
1580	      if (!POOL_BLOCK_FREE_HD(hd)) {
1581	        s->live += Whsize_hd(hd);
1582	        s->overhead += wh - Whsize_hd(hd);
1583	        s->live_blocks++;
1584	      } else {
1585	        /* count the free block and any that follow it (stored in the
1586	           size bits in the header)*/
1587	        s->free += wh * (1 + Wosize_hd(hd));
1588	        p += Wosize_hd(hd) * wh;
1589	      }
1590	      p += wh;
1591	    }
1592	    CAMLassert(end == p);
1593	    s->allocated += POOL_WSIZE;
1594	  }

[metadata] {"type": "text", "file": {"filePath": "/app/ocaml/runtime/shared_heap.c", "content": "static void verify_pool(pool* a, sizeclass sz, struct mem_stats* s) {\n  for (value *v = a->next_obj; v; v = (value*)v[1]) {\n    CAMLassert(POOL_BLOCK_FREE_HP(v));\n  }\n\n  {\n    header_t* p = POOL_FIRST_BLOCK(a, sz);\n    header_t* end = POOL_END(a);\n    mlsize_t wh = wsize_sizeclass[sz];\n    s->overhead += POOL_SLAB_WOFFSET(sz);\n\n    while (p + wh <= end) {\n      /* This header can be read here and concurrently marked by the GC, but\n         this is fine: marking can only turn UNMARKED objects into MARKED or\n         NOT_MARKABLE, which is of no consequence for this verification\n         (namely, that there is no garbage left). */\n      header_t hd = Hd_hp(p);\n      CAMLassert(\n        POOL_BLOCK_FREE_HD(hd) ||\n          !Has_status_hd(hd, caml_global_heap_state.GARBAGE)\n      );\n      if (!POOL_BLOCK_FREE_HD(hd)) {\n        s->live += Whsize_hd(hd);\n        s->overhead += wh - Whsize_hd(hd);\n        s->live_blocks++;\n      } else {\n        /* count the free block and any that follow it (stored in the\n           size bits in the header)*/\n        s->free += wh * (1 + Wosize_hd(hd));\n        p += Wosize_hd(hd) * wh;\n      }\n      p += wh;\n    }\n    CAMLassert(end == p);\n    s->allocated += POOL_WSIZE;\n  }", "numLines": 36, "startLine": 1559, "totalLines": 1684}}

The file /app/ocaml/runtime/shared_heap.c has been updated successfully. (file state is current in your context — no need to Read it back)

[metadata] {"filePath": "/app/ocaml/runtime/shared_heap.c", "oldString": "      p += Whsize_hd(hd);\n    } while (p + wh <= end);", "newString": "      p += wh;\n    } while (p + wh <= end);", "originalFile": null, "structuredPatch": [{"oldStart": 647, "oldLines": 7, "newStart": 647, "newLines": 7, "lines": ["             freelist */", "         release_to_global_pool = 0;", "       }", "-      p += Whsize_hd(hd);", "+      p += wh;", "     } while (p + wh <= end);", "     CAMLassert(p == end);", " "]}], "userModified": false, "replaceAll": false}

OCAMLDOC build/compilerlibref/config.odoc
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  OCAMLDOC build/compilerlibref/misc.odoc
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  OCAMLDOC build/libref/Format_tutorial.odoc
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  OCAMLDOC build/compilerlibref/Compiler_libs.odoc
  OCAMLDOC build/man/Stdlib.3o
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... testing 'eval_order_pr10283.ml' => passed
 ... testing 'float.ml' => passed
 ... testing 'float_physical_equality.ml' => passed
 ... testing 'includestruct.ml' => passed
 ... testing 'localexn.ml' => passed
 ... testing 'localfunction.ml' => passed
 ... testing 'maps.ml' => passed
 ... testing 'min_int.ml' => passed
 ... testing 'objects.ml' => passed
 ... testing 'opt_variants.ml' => passed
 ... testing 'patmatch.ml' => passed
 ... testing 'patmatch_for_multiple.ml' => passed
 ... testing 'patmatch_incoherence.ml' => passed
 ... testing 'patmatch_split_no_or.ml' => passed
 ... testing 'pr7253.ml' => passed
 ... testing 'pr7533.ml' => passed
 ... testing 'pr7657.ml' => passed
 ... testing 'recvalues.ml' => passed
 ... testing 'sets.ml' => passed
 ... testing 'stringmatch.ml' => passed
 ... testing 'switch_opts.ml' => passed
 ... testing 'tailcalls.ml' => passed
 ... testing 'trigraph.ml' => passed
 ... testing 'tuple_match.ml' => passed
 ... testing 'unit_naming.ml' => passed
 ... testing 'zero_divided_by_n.ml' => passed
make[1]: Entering directory '/app/ocaml/testsuite'
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Summary:
    40 tests passed
     0 tests skipped
     0 tests failed
     0 tests not started (parent test skipped or failed)
     0 unexpected errors
    40 tests considered
make[1]: Leaving directory '/app/ocaml/testsuite'
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[stdout]
 ... testing 'eval_order_pr10283.ml' => passed
 ... testing 'float.ml' => passed
 ... testing 'float_physical_equality.ml' => passed
 ... testing 'includestruct.ml' => passed
 ... testing 'localexn.ml' => passed
 ... testing 'localfunction.ml' => passed
 ... testing 'maps.ml' => passed
 ... testing 'min_int.ml' => passed
 ... testing 'objects.ml' => passed
 ... testing 'opt_variants.ml' => passed
 ... testing 'patmatch.ml' => passed
 ... testing 'patmatch_for_multiple.ml' => passed
 ... testing 'patmatch_incoherence.ml' => passed
 ... testing 'patmatch_split_no_or.ml' => passed
 ... testing 'pr7253.ml' => passed
 ... testing 'pr7533.ml' => passed
 ... testing 'pr7657.ml' => passed
 ... testing 'recvalues.ml' => passed
 ... testing 'sets.ml' => passed
 ... testing 'stringmatch.ml' => passed
 ... testing 'switch_opts.ml' => passed
 ... testing 'tailcalls.ml' => passed
 ... testing 'trigraph.ml' => passed
 ... testing 'tuple_match.ml' => passed
 ... testing 'unit_naming.ml' => passed
 ... testing 'zero_divided_by_n.ml' => passed
make[1]: Entering directory '/app/ocaml/testsuite'
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make[1]: Entering directory '/app/ocaml/testsuite'


Summary:
    40 tests passed
     0 tests skipped
     0 tests failed
     0 tests not started (parent test skipped or failed)
     0 unexpected errors
    40 tests considered
make[1]: Leaving directory '/app/ocaml/testsuite'
make: Leaving directory '/app/ocaml/testsuite'
[metadata] {"noOutputExpected": false}