mirror of
https://github.com/ProgramSnail/Lama.git
synced 2025-12-05 22:38:44 +00:00
Dmitry Boulytchev
GitHub
commit
7d80ef18e9
43 changed files with 5289 additions and 3504 deletions
37
.github/workflows/blank.yml
vendored
37
.github/workflows/blank.yml
vendored
|
|
@ -1,12 +1,10 @@
|
|||
name: Build
|
||||
name: Main workflow
|
||||
|
||||
on:
|
||||
pull_request:
|
||||
push:
|
||||
paths-ignore:
|
||||
- 'README.md'
|
||||
branches:
|
||||
- '1.10'
|
||||
|
||||
permissions: read-all
|
||||
|
||||
jobs:
|
||||
build:
|
||||
|
|
@ -14,27 +12,26 @@ jobs:
|
|||
fail-fast: false
|
||||
matrix:
|
||||
os:
|
||||
#- macos-latest
|
||||
- ubuntu-20.04
|
||||
#- windows-latest
|
||||
ocaml-version:
|
||||
#- 4.11.0
|
||||
- 4.10.1
|
||||
#- 4.09.1
|
||||
#- 4.08.1
|
||||
- ubuntu-latest
|
||||
ocaml-compiler:
|
||||
- 4.13.1
|
||||
|
||||
runs-on: ${{ matrix.os }}
|
||||
|
||||
steps:
|
||||
- name: Checkout code
|
||||
uses: actions/checkout@v2
|
||||
- name: Use OCaml ${{ matrix.ocaml-version }}
|
||||
uses: avsm/setup-ocaml@v1
|
||||
- name: Checkout tree
|
||||
uses: actions/checkout@v3
|
||||
|
||||
- name: Set-up OCaml ${{ matrix.ocaml-compiler }}
|
||||
uses: ocaml/setup-ocaml@v2
|
||||
with:
|
||||
ocaml-version: ${{ matrix.ocaml-version }}
|
||||
ocaml-compiler: ${{ matrix.ocaml-compiler }}
|
||||
|
||||
- run: opam pin add Lama.dev . --no-action
|
||||
- run: opam depext Lama.dev --yes --with-test
|
||||
- run: opam install . --deps-only --with-test
|
||||
- run: opam exec -- make #dune build
|
||||
- run: opam exec -- make regression # dune runtest
|
||||
- run: eval $(opam env)
|
||||
- run: opam exec -- make
|
||||
- run: opam exec -- make regression-all
|
||||
- run: opam exec -- make unit_tests
|
||||
- run: opam exec -- make negative_scenarios_tests
|
||||
|
|
|
|||
1
.gitignore
vendored
1
.gitignore
vendored
|
|
@ -5,3 +5,4 @@
|
|||
*.o
|
||||
.merlin
|
||||
|
||||
.vscode
|
||||
24
Lama.opam
24
Lama.opam
|
|
@ -1,23 +1,27 @@
|
|||
opam-version: "2.0"
|
||||
version: "1.10"
|
||||
version: "1.2"
|
||||
|
||||
synopsis: "Lama programming system"
|
||||
synopsis: "Lama programming language"
|
||||
maintainer: "dboulytchev@gmail.com"
|
||||
authors: "dboulytchev@gmail.com"
|
||||
homepage: "https://github.com/JetBrains-Research/Lama"
|
||||
bug-reports: "https://github.com/JetBrains-Research/Lama/issues"
|
||||
authors: [
|
||||
"Dmitry Boulytchev <dboulytchev@gmail.com>"
|
||||
"Daniil Berezun <danya.berezun@gmail.com>"
|
||||
"Egor Sheremetov <egor.sheremetov.dev@gmail.com>"
|
||||
]
|
||||
homepage: "https://github.com/PLTools/Lama"
|
||||
bug-reports: "https://github.com/PLTools/Lama/issues"
|
||||
|
||||
depends: [
|
||||
"ocaml" { >= "4.07.1" }
|
||||
"ocaml" { >= "4.13.1" }
|
||||
"ocamlfind" { build }
|
||||
"camlp5" { >= "8.00.05" }
|
||||
"ostap" { >= "0.5"}
|
||||
"GT" { >= "0.5.0" }
|
||||
"GT" { >= "0.5.1" }
|
||||
]
|
||||
|
||||
build: [
|
||||
[make]
|
||||
[make "regression"] {with-test}
|
||||
[make "regression-all"] {with-test}
|
||||
]
|
||||
install: [make "install"]
|
||||
|
||||
|
|
@ -25,7 +29,7 @@ depexts: [
|
|||
["gcc-multilib"] {os-family = "debian"}
|
||||
]
|
||||
|
||||
dev-repo: "git+https://github.com/JetBrains-Research/Lama.git"
|
||||
dev-repo: "git+https://github.com/PLTools/Lama.git"
|
||||
url {
|
||||
src: "git+https://github.com/JetBrains-Research/Lama.git#1.10+ocaml4.10"
|
||||
src: "git+https://github.com/PLTools/Lama.git#1.20"
|
||||
}
|
||||
|
|
|
|||
22
Makefile
22
Makefile
|
|
@ -9,6 +9,9 @@ all:
|
|||
$(MAKE) -C runtime
|
||||
$(MAKE) -C byterun
|
||||
$(MAKE) -C stdlib
|
||||
$(MAKE) -C runtime unit_tests.o
|
||||
$(MAKE) -C runtime invariants_check.o
|
||||
$(MAKE) -C runtime invariants_check_debug_print.o
|
||||
|
||||
STD_FILES=$(shell ls stdlib/*.[oi] stdlib/*.lama runtime/runtime.a runtime/Std.i)
|
||||
|
||||
|
|
@ -21,13 +24,28 @@ uninstall:
|
|||
$(RM) -r `opam var share`/Lama
|
||||
$(RM) `opam var bin`/$(EXECUTABLE)
|
||||
|
||||
regression-all: regression regression-expressions
|
||||
|
||||
regression:
|
||||
$(MAKE) clean check -C regression
|
||||
$(MAKE) clean check -C stdlib/regression
|
||||
$(MAKE) clean check -j8 -C regression
|
||||
$(MAKE) clean check -j8 -C stdlib/regression
|
||||
|
||||
regression-expressions:
|
||||
$(MAKE) clean check -j8 -C regression/expressions
|
||||
$(MAKE) clean check -j8 -C regression/deep-expressions
|
||||
|
||||
unit_tests:
|
||||
./runtime/unit_tests.o
|
||||
./runtime/invariants_check.o
|
||||
./runtime/invariants_check_debug_print.o
|
||||
|
||||
negative_scenarios_tests:
|
||||
$(MAKE) -C runtime negative_tests
|
||||
|
||||
clean:
|
||||
$(MAKE) clean -C src
|
||||
$(MAKE) clean -C runtime
|
||||
$(MAKE) clean -C stdlib
|
||||
$(MAKE) clean -C regression
|
||||
$(MAKE) clean -C byterun
|
||||
$(MAKE) clean -C bench
|
||||
|
|
|
|||
40
README.md
40
README.md
|
|
@ -1,11 +1,9 @@
|
|||
| Lama 1.10 | Lama-devel 1.10 |
|
||||
| -------------------- | -------------------------- |
|
||||
| [![Lama 1.10][1]][2] | [![Lama-devel 1.10][3]][4] |
|
||||
| Lama 1.2 |
|
||||
| ------------------- |
|
||||
| [![Lama 1.2][1]][2] |
|
||||
|
||||
[1]: https://github.com/JetBrains-Research/Lama/workflows/Build/badge.svg?branch=1.10
|
||||
[2]: https://github.com/JetBrains-Research/Lama/actions
|
||||
[3]: https://github.com/JetBrains-Research/Lama-devel/workflows/Build/badge.svg?branch=1.10
|
||||
[4]: https://github.com/JetBrains-Research/Lama-devel/actions
|
||||
[1]: https://github.com/PLTools/Lama/Lama/workflows/Build/badge.svg?branch=1.10
|
||||
[2]: https://github.com/PLTools/Lama//Lama/actions
|
||||
|
||||
# Lama
|
||||
|
||||
|
|
@ -26,13 +24,13 @@ The name  is an acronym for *Lambda-Algol* since the language h
|
|||
|
||||
The main purpose of  is to present a repertoire of constructs with certain runtime behavior and relevant implementation techniques.
|
||||
The lack of a type system (a vital feature for a real-world language
|
||||
for software engineering) is an intensional decision that allows showing the unchained diversity of runtime behaviors, including those that a typical type system is called to prevent.
|
||||
for software engineering) is an intensional decision that allows showing the unchained diversity of runtime behaviors, including those that a typical type system is called to prevent.
|
||||
On the other hand the language can be used in the future as a raw substrate to apply various ways of software verification (including type systems).
|
||||
|
||||
The current implementation contains a native code compiler for **x86-32**, written in **OCaml**, a runtime library with garbage-collection support, written in **C**, and a small standard library, written in  itself.
|
||||
The native code compiler uses **gcc** as a toolchain.
|
||||
|
||||
In addition, a source-level reference interpreter is implemented as well as a compiler to a small stack machine.
|
||||
In addition, a source-level reference interpreter is implemented as well as a compiler to a small stack machine.
|
||||
The stack machine code can in turn be either interpreted on a stack machine interpreter, or used as an intermediate representation by the native code compiler.
|
||||
|
||||
## Language Specification
|
||||
|
|
@ -51,9 +49,9 @@ Ubuntu-based variant of WSL is recommended.
|
|||
* System-wide prerequisites:
|
||||
|
||||
- `gcc-multilib`
|
||||
|
||||
|
||||
For example, (for Debian-based GNU/Linux):
|
||||
```bash
|
||||
```bash
|
||||
$ sudo apt install gcc-multilib
|
||||
```
|
||||
|
||||
|
|
@ -73,10 +71,10 @@ Ubuntu-based variant of WSL is recommended.
|
|||
1. Install the right [switch](https://opam.ocaml.org/doc/Manual.html#Switches) for the OCaml compiler
|
||||
|
||||
```bash
|
||||
# for fresh opam
|
||||
$ opam switch create lama --packages=ocaml-variants.4.14.0+options,ocaml-option-flambda
|
||||
# for old opam
|
||||
$ opam switch create lama ocaml-variants.4.10.1+flambda
|
||||
# for fresh opam
|
||||
$ opam switch create lama --packages=ocaml-variants.4.14.0+options,ocaml-option-flambda
|
||||
# for old opam
|
||||
$ opam switch create lama ocaml-variants.4.13.1+flambda
|
||||
```
|
||||
|
||||
* In the above command:
|
||||
|
|
@ -100,7 +98,7 @@ Ubuntu-based variant of WSL is recommended.
|
|||
3. Pin Lama package using `opam` and right URL (remember of "#" being a comment character in various shells)
|
||||
|
||||
```bash
|
||||
$ opam pin add Lama https://github.com/JetBrains-Research/Lama.git\#1.10 --no-action
|
||||
$ opam pin add Lama https://github.com/PLTools/Lama.git\#1.2 --no-action
|
||||
```
|
||||
|
||||
The extra '#' sign is added because in various Shells it is the start of a comment
|
||||
|
|
@ -120,5 +118,13 @@ Ubuntu-based variant of WSL is recommended.
|
|||
|
||||
### Smoke-testing (optional)
|
||||
|
||||
Clone the repository and run `make -C tutorial`.
|
||||
Clone the repository and run `make -C tutorial`.
|
||||
It should build a local compiler `src/lamac` and a few tutorial executables in `tutorial/`.
|
||||
|
||||
### Useful links
|
||||
|
||||
* [Plugin for VS Code](https://marketplace.visualstudio.com/items?itemName=arsavelev.lsp-lama)
|
||||
|
||||
### Changes in Lama 1.2
|
||||
|
||||
* New garbage collector: single-threaded stop-the-world `LISP2` (see GC Handbook for details: [1st edition](https://www.cs.kent.ac.uk/people/staff/rej/gcbook/), [2nd edition](http://gchandbook.org/)) [mark-compact](https://www.memorymanagement.org/glossary/m.html#term-mark-compact).
|
||||
|
|
|
|||
|
|
@ -1,8 +1,10 @@
|
|||
FLAGS=-m32 -g2 -fstack-protector-all
|
||||
|
||||
all: byterun.o
|
||||
$(CC) -m32 -g -o byterun byterun.o ../runtime/runtime.a
|
||||
$(CC) $(FLAGS) -o byterun byterun.o ../runtime/runtime.a
|
||||
|
||||
byterun.o: byterun.c
|
||||
$(CC) -g -fstack-protector-all -m32 -c byterun.c
|
||||
$(CC) $(FLAGS) -g -c byterun.c
|
||||
|
||||
clean:
|
||||
$(RM) *.a *.o *~
|
||||
$(RM) *.a *.o *~ byterun
|
||||
|
|
|
|||
3
dune-project
Normal file
3
dune-project
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
(lang dune 3.3)
|
||||
|
||||
(cram enable)
|
||||
|
|
@ -1,18 +1,24 @@
|
|||
TESTS=$(sort $(basename $(wildcard test*.lama)))
|
||||
DEBUG_FILES=stack-dump-before data-dump-before extra-roots-dump-before heap-dump-before stack-dump-after data-dump-after extra-roots-dump-after heap-dump-after
|
||||
TESTS=$(sort $(filter-out test111, $(basename $(wildcard test*.lama))))
|
||||
|
||||
LAMAC=../src/lamac
|
||||
|
||||
.PHONY: check $(TESTS)
|
||||
|
||||
check: $(TESTS)
|
||||
|
||||
check: ctest111 $(TESTS)
|
||||
|
||||
$(TESTS): %: %.lama
|
||||
@echo $@
|
||||
cat $@.input | LAMA=../runtime $(LAMAC) -i $< > $@.log && diff $@.log orig/$@.log
|
||||
cat $@.input | LAMA=../runtime $(LAMAC) -ds -s $< > $@.log && diff $@.log orig/$@.log
|
||||
LAMA=../runtime $(LAMAC) $< && cat $@.input | ./$@ > $@.log && diff $@.log orig/$@.log
|
||||
@echo "regression/$@"
|
||||
@cat $@.input | LAMA=../runtime $(LAMAC) -i $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | LAMA=../runtime $(LAMAC) -ds -s $< > $@.log && diff $@.log orig/$@.log
|
||||
@LAMA=../runtime $(LAMAC) $< && cat $@.input | ./$@ > $@.log && diff $@.log orig/$@.log
|
||||
|
||||
ctest111:
|
||||
@echo "regression/test111"
|
||||
@LAMA=../runtime $(LAMAC) test111.lama && cat test111.input | ./test111 > test111.log && diff test111.log orig/test111.log
|
||||
|
||||
clean:
|
||||
$(RM) test*.log *.s *~ $(TESTS) *.i
|
||||
$(RM) test*.log *.s *.sm *~ $(TESTS) *.i $(DEBUG_FILES) test111
|
||||
$(MAKE) clean -C expressions
|
||||
$(MAKE) clean -C deep-expressions
|
||||
|
|
|
|||
|
|
@ -7,10 +7,10 @@ LAMAC = ../../src/lamac
|
|||
check: $(TESTS)
|
||||
|
||||
$(TESTS): %: %.lama
|
||||
@echo $@
|
||||
@echo "regression/deep-expressions/$@"
|
||||
@LAMA=../../runtime $(LAMAC) $< && cat $@.input | ./$@ > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | $(LAMAC) -i $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | $(LAMAC) -s $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | LAMA=../../runtime $(LAMAC) -i $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | LAMA=../../runtime $(LAMAC) -s $< > $@.log && diff $@.log orig/$@.log
|
||||
|
||||
clean:
|
||||
rm -f *.log *.s *~
|
||||
|
|
|
|||
|
|
@ -7,10 +7,10 @@ RC = ../../src/lamac
|
|||
check: $(TESTS)
|
||||
|
||||
$(TESTS): %: %.lama
|
||||
@echo $@
|
||||
@echo "regression/expressions/$@"
|
||||
@LAMA=../../runtime $(RC) $< && cat $@.input | ./$@ > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | $(RC) -i $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | $(RC) -s $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | LAMA=../../runtime $(RC) -i $< > $@.log && diff $@.log orig/$@.log
|
||||
@cat $@.input | LAMA=../../runtime $(RC) -s $< > $@.log && diff $@.log orig/$@.log
|
||||
|
||||
clean:
|
||||
rm -f *.log *.s *~
|
||||
|
|
|
|||
6
regression/orig/test111.log
Normal file
6
regression/orig/test111.log
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
97
|
||||
98
|
||||
99
|
||||
100
|
||||
97
|
||||
98
|
||||
0
regression/test111.input
Normal file
0
regression/test111.input
Normal file
21
regression/test111.lama
Normal file
21
regression/test111.lama
Normal file
|
|
@ -0,0 +1,21 @@
|
|||
import Std;
|
||||
|
||||
fun printString (s) {
|
||||
var i;
|
||||
for i := 0, i < s.length, i := i + 1 do
|
||||
write (s[i])
|
||||
od
|
||||
}
|
||||
|
||||
fun printListConcat ( str_list ) {
|
||||
printString (stringcat ( str_list ))
|
||||
}
|
||||
|
||||
var l = { "a" , "b" , "c" , "d" };
|
||||
printListConcat (l);
|
||||
|
||||
l := { "ab" };
|
||||
printListConcat (l);
|
||||
|
||||
l := {};
|
||||
printListConcat (l)
|
||||
134
runtime/.clang-format
Normal file
134
runtime/.clang-format
Normal file
|
|
@ -0,0 +1,134 @@
|
|||
# Common settings
|
||||
BasedOnStyle: LLVM
|
||||
TabWidth: 2
|
||||
IndentWidth: 2
|
||||
UseTab: Never
|
||||
ColumnLimit: 100
|
||||
IndentCaseLabels: true
|
||||
|
||||
# https://clang.llvm.org/docs/ClangFormatStyleOptions.html
|
||||
---
|
||||
Language: Cpp
|
||||
|
||||
DisableFormat: false
|
||||
Standard: Auto
|
||||
|
||||
AccessModifierOffset: -4
|
||||
AlignAfterOpenBracket: true
|
||||
AlignConsecutiveAssignments: Consecutive
|
||||
AlignConsecutiveDeclarations: Consecutive
|
||||
AlignEscapedNewlines: Right
|
||||
AlignOperands: true
|
||||
AlignTrailingComments: false
|
||||
AllowAllParametersOfDeclarationOnNextLine: true
|
||||
AllowShortBlocksOnASingleLine: Always
|
||||
AllowShortCaseLabelsOnASingleLine: true
|
||||
AllowShortFunctionsOnASingleLine: All
|
||||
AllowShortIfStatementsOnASingleLine: AllIfsAndElse
|
||||
AllowShortLoopsOnASingleLine: true
|
||||
AlwaysBreakAfterDefinitionReturnType: None
|
||||
AlwaysBreakAfterReturnType: None
|
||||
AlwaysBreakBeforeMultilineStrings: false
|
||||
AlwaysBreakTemplateDeclarations: Yes
|
||||
BinPackArguments: false
|
||||
BinPackParameters: true
|
||||
BitFieldColonSpacing: Both
|
||||
|
||||
|
||||
# Configure each individual brace in BraceWrapping
|
||||
BreakBeforeBraces: Attach
|
||||
# Control of individual brace wrapping cases
|
||||
BraceWrapping:
|
||||
AfterClass: true
|
||||
AfterControlStatement: Always
|
||||
AfterEnum : true
|
||||
AfterFunction : true
|
||||
AfterNamespace : true
|
||||
AfterStruct : true
|
||||
AfterUnion : true
|
||||
BeforeCatch : true
|
||||
BeforeElse : true
|
||||
IndentBraces : false
|
||||
AfterExternBlock : true
|
||||
SplitEmptyFunction : false
|
||||
SplitEmptyRecord : false
|
||||
SplitEmptyNamespace : true
|
||||
|
||||
|
||||
BreakAfterJavaFieldAnnotations: true
|
||||
BreakBeforeInheritanceComma: false
|
||||
BreakBeforeBinaryOperators: NonAssignment
|
||||
BreakBeforeTernaryOperators: true
|
||||
BreakConstructorInitializersBeforeComma: true
|
||||
BreakStringLiterals: true
|
||||
|
||||
CommentPragmas: '^ IWYU pragma:'
|
||||
CompactNamespaces: false
|
||||
ConstructorInitializerAllOnOneLineOrOnePerLine: false
|
||||
ConstructorInitializerIndentWidth: 4
|
||||
ContinuationIndentWidth: 4
|
||||
Cpp11BracedListStyle: true
|
||||
SpaceBeforeCpp11BracedList: false
|
||||
DerivePointerAlignment: false
|
||||
ExperimentalAutoDetectBinPacking: false
|
||||
ForEachMacros: [ foreach, Q_FOREACH, BOOST_FOREACH ]
|
||||
IndentCaseLabels: true
|
||||
FixNamespaceComments: true
|
||||
IndentWrappedFunctionNames: true
|
||||
KeepEmptyLinesAtTheStartOfBlocks: true
|
||||
MacroBlockBegin: ''
|
||||
MacroBlockEnd: ''
|
||||
JavaScriptQuotes: Double
|
||||
MaxEmptyLinesToKeep: 1
|
||||
NamespaceIndentation: None
|
||||
ObjCBlockIndentWidth: 4
|
||||
ObjCSpaceAfterProperty: true
|
||||
ObjCSpaceBeforeProtocolList: true
|
||||
PenaltyBreakBeforeFirstCallParameter: 19
|
||||
PenaltyBreakComment: 300
|
||||
PenaltyBreakFirstLessLess: 120
|
||||
PenaltyBreakString: 1000
|
||||
|
||||
PenaltyExcessCharacter: 1000000
|
||||
PenaltyReturnTypeOnItsOwnLine: 60
|
||||
PointerAlignment: Right
|
||||
SpaceAfterCStyleCast: false
|
||||
SpaceAfterLogicalNot: false
|
||||
SpaceBeforeAssignmentOperators: true
|
||||
SpaceBeforeParens: Custom
|
||||
SpaceBeforeParensOptions:
|
||||
AfterControlStatements: true
|
||||
AfterForeachMacros: true
|
||||
AfterFunctionDeclarationName: true
|
||||
AfterFunctionDefinitionName: true
|
||||
AfterIfMacros: true
|
||||
AfterOverloadedOperator: true
|
||||
AfterRequiresInClause: true
|
||||
AfterRequiresInExpression: true
|
||||
BeforeNonEmptyParentheses: false
|
||||
|
||||
SpaceBeforeRangeBasedForLoopColon: false
|
||||
SpaceInEmptyBlock: true
|
||||
SpaceInEmptyParentheses: false
|
||||
SpacesBeforeTrailingComments: 3
|
||||
SpacesInAngles: false
|
||||
SpacesInContainerLiterals: true
|
||||
SpacesInCStyleCastParentheses: false
|
||||
SpacesInConditionalStatement: false
|
||||
SpacesInParentheses: false
|
||||
SpacesInSquareBrackets: false
|
||||
SpaceAfterTemplateKeyword: true
|
||||
SpaceBeforeInheritanceColon: true
|
||||
|
||||
SortUsingDeclarations: true
|
||||
SortIncludes: CaseInsensitive
|
||||
|
||||
IndentGotoLabels: false
|
||||
InsertBraces: false
|
||||
|
||||
# Comments are for developers, they should arrange them
|
||||
ReflowComments: false
|
||||
|
||||
IncludeBlocks: Regroup
|
||||
IndentPPDirectives: AfterHash
|
||||
SeparateDefinitionBlocks: Always
|
||||
|
|
@ -1,12 +1,44 @@
|
|||
CC=gcc
|
||||
COMMON_FLAGS=-m32 -g2 -fstack-protector-all
|
||||
PROD_FLAGS=$(COMMON_FLAGS) -DLAMA_ENV
|
||||
TEST_FLAGS=$(COMMON_FLAGS) -DDEBUG_VERSION
|
||||
UNIT_TESTS_FLAGS=$(TEST_FLAGS)
|
||||
INVARIANTS_CHECK_FLAGS=$(TEST_FLAGS) -DFULL_INVARIANT_CHECKS
|
||||
|
||||
all: gc_runtime.o runtime.o
|
||||
ar rc runtime.a gc_runtime.o runtime.o
|
||||
# this target is the most important one, its' artefacts should be used as a runtime of Lama
|
||||
all: gc.o runtime.o
|
||||
ar rc runtime.a runtime.o gc.o
|
||||
|
||||
gc_runtime.o: gc_runtime.s
|
||||
$(CC) -g -fstack-protector-all -m32 -c gc_runtime.s
|
||||
NEGATIVE_TESTS=$(sort $(basename $(notdir $(wildcard negative_scenarios/*_neg.c))))
|
||||
|
||||
$(NEGATIVE_TESTS): %: negative_scenarios/%.c
|
||||
@echo "Running test $@"
|
||||
@$(CC) -o $@.o $(COMMON_FLAGS) negative_scenarios/$@.c gc.c
|
||||
@./$@.o 2> negative_scenarios/$@.err || diff negative_scenarios/$@.err negative_scenarios/expected/$@.err
|
||||
|
||||
negative_tests: $(NEGATIVE_TESTS)
|
||||
|
||||
# this is a target that runs unit tests, scenarios are written in a single file `test_main.c`
|
||||
unit_tests.o: gc.c gc.h runtime.c runtime.h runtime_common.h virt_stack.c virt_stack.h test_main.c test_util.s
|
||||
$(CC) -o unit_tests.o $(UNIT_TESTS_FLAGS) gc.c virt_stack.c runtime.c test_main.c test_util.s
|
||||
|
||||
# this target also runs unit tests but with additional expensive checks of GC invariants which aren't used in production version
|
||||
invariants_check.o: gc.c gc.h runtime.c runtime.h runtime_common.h virt_stack.c virt_stack.h test_main.c test_util.s
|
||||
$(CC) -o invariants_check.o $(INVARIANTS_CHECK_FLAGS) gc.c virt_stack.c runtime.c test_main.c test_util.s
|
||||
|
||||
# this target also runs unit tests but with additional expensive checks of GC invariants which aren't used in production version
|
||||
# additionally, it prints debug information
|
||||
invariants_check_debug_print.o: gc.c gc.h runtime.c runtime.h runtime_common.h virt_stack.c virt_stack.h test_main.c test_util.s
|
||||
$(CC) -o invariants_check_debug_print.o $(INVARIANTS_CHECK_FLAGS) -DDEBUG_PRINT gc.c virt_stack.c runtime.c test_main.c test_util.s
|
||||
|
||||
virt_stack.o: virt_stack.h virt_stack.c
|
||||
$(CC) $(PROD_FLAGS) -c virt_stack.c
|
||||
|
||||
gc.o: gc.c gc.h
|
||||
$(CC) -rdynamic $(PROD_FLAGS) -c gc.c
|
||||
|
||||
runtime.o: runtime.c runtime.h
|
||||
$(CC) -g -fstack-protector-all -m32 -c runtime.c
|
||||
$(CC) $(PROD_FLAGS) -c runtime.c
|
||||
|
||||
clean:
|
||||
$(RM) *.a *.o *~
|
||||
$(RM) *.a *.o *~ negative_scenarios/*.err
|
||||
|
|
|
|||
19
runtime/TODO.md
Normal file
19
runtime/TODO.md
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
### TODO list
|
||||
|
||||
- [x] Fix heap&stack&extra_roots dump
|
||||
- [x] Remove extra and dead code
|
||||
- [x] Debug print -> DEBUG_PRINT mode
|
||||
- [x] Check `mmap`/`remap`/...
|
||||
- [x] Check: `__gc_stack_bot`: same issue as `__gc_stack_top`?
|
||||
- [x] Check: Can we get rid of `__gc_init` (as an assembly (implement in C instead))? (answer: if we make main in which every Lama file is compiled set `__gc_stack_bottom` to current `ebp` then yes, otherwise we need access to registers)
|
||||
- [x] Check: runtime tags: should always the last bit be 1? (Answer: not really, however, we still need to distinguish between 5 different options (because unboxed values should have its own value to be returned from `LkindOf`))
|
||||
- [x] Fix warnings in ML code
|
||||
- [x] TODO: debug flag doesn't compile
|
||||
- [x] Sexp: move the tag to be `contents[0]` instead of the word in sexp header; i.e. get rid of sexp as separate data structure
|
||||
- [x] Run Lama compiler on Lama
|
||||
- [ ] Add more stress tests (for graph-like structures) to `stdlib/regression` and unit tests
|
||||
- [ ] Magic constants
|
||||
- [ ] Normal documentation: a-la doxygen
|
||||
- [ ] Think: normal debug mode
|
||||
- [ ] Fix warnings in C code
|
||||
- [ ] Modes (like FULL_INVARIANTS) -> separate files
|
||||
922
runtime/gc.c
Normal file
922
runtime/gc.c
Normal file
|
|
@ -0,0 +1,922 @@
|
|||
#define _GNU_SOURCE 1
|
||||
|
||||
#include "gc.h"
|
||||
|
||||
#include "runtime_common.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <execinfo.h>
|
||||
#include <signal.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/mman.h>
|
||||
#include <time.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static const size_t INIT_HEAP_SIZE = MINIMUM_HEAP_CAPACITY;
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
size_t cur_id = 0;
|
||||
#endif
|
||||
|
||||
static extra_roots_pool extra_roots;
|
||||
|
||||
size_t __gc_stack_top = 0, __gc_stack_bottom = 0;
|
||||
#ifdef LAMA_ENV
|
||||
extern const size_t __start_custom_data, __stop_custom_data;
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
memory_chunk heap;
|
||||
#else
|
||||
static memory_chunk heap;
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
void dump_heap ();
|
||||
#endif
|
||||
|
||||
void handler (int sig) {
|
||||
void *array[10];
|
||||
int size;
|
||||
|
||||
// get void*'s for all entries on the stack
|
||||
size = backtrace(array, 10);
|
||||
fprintf(stderr, "heap size is %zu\n", heap.size);
|
||||
backtrace_symbols_fd(array, size, STDERR_FILENO);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
void *alloc (size_t size) {
|
||||
#ifdef DEBUG_VERSION
|
||||
++cur_id;
|
||||
#endif
|
||||
size_t bytes_sz = size;
|
||||
size = BYTES_TO_WORDS(size);
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "allocation of size %zu words (%zu bytes): ", size, bytes_sz);
|
||||
#endif
|
||||
void *p = gc_alloc_on_existing_heap(size);
|
||||
if (!p) {
|
||||
// not enough place in the heap, need to perform GC cycle
|
||||
p = gc_alloc(size);
|
||||
}
|
||||
return p;
|
||||
}
|
||||
|
||||
#ifdef FULL_INVARIANT_CHECKS
|
||||
|
||||
// precondition: obj_content is a valid address pointing to the content of an object
|
||||
static void print_object_info (FILE *f, void *obj_content) {
|
||||
data *d = TO_DATA(obj_content);
|
||||
size_t obj_tag = TAG(d->data_header);
|
||||
size_t obj_id = d->id;
|
||||
fprintf(f, "id %zu tag %zu | ", obj_id, obj_tag);
|
||||
}
|
||||
|
||||
static void print_unboxed (FILE *f, int unboxed) { fprintf(f, "unboxed %zu | ", unboxed); }
|
||||
|
||||
static FILE *print_stack_content (char *filename) {
|
||||
FILE *f = fopen(filename, "w+");
|
||||
ftruncate(fileno(f), 0);
|
||||
fprintf(f, "Stack content:\n");
|
||||
for (size_t *stack_ptr = (size_t *)((void *)__gc_stack_top + 4);
|
||||
stack_ptr < (size_t *)__gc_stack_bottom;
|
||||
++stack_ptr) {
|
||||
size_t value = *stack_ptr;
|
||||
if (is_valid_heap_pointer((size_t *)value)) {
|
||||
fprintf(f, "%p, ", (void *)value);
|
||||
print_object_info(f, (void *)value);
|
||||
} else {
|
||||
print_unboxed(f, (int)value);
|
||||
}
|
||||
fprintf(f, "\n");
|
||||
}
|
||||
fprintf(f, "Stack content end.\n");
|
||||
return f;
|
||||
}
|
||||
|
||||
// precondition: obj_content is a valid address pointing to the content of an object
|
||||
static void objects_dfs (FILE *f, void *obj_content) {
|
||||
void *obj_header = get_obj_header_ptr(obj_content);
|
||||
data *obj_data = TO_DATA(obj_content);
|
||||
// internal mark-bit for this dfs, should be recovered by the caller
|
||||
if ((obj_data->forward_address & 2) != 0) { return; }
|
||||
// set this bit as 1
|
||||
obj_data->forward_address |= 2;
|
||||
fprintf(f, "object at addr %p: ", obj_content);
|
||||
print_object_info(f, obj_content);
|
||||
/*fprintf(f, "object id: %zu | ", obj_data->id);*/
|
||||
// first cycle: print object's fields
|
||||
for (obj_field_iterator field_it = ptr_field_begin_iterator(obj_header);
|
||||
!field_is_done_iterator(&field_it);
|
||||
obj_next_field_iterator(&field_it)) {
|
||||
size_t field_value = *(size_t *)field_it.cur_field;
|
||||
if (is_valid_heap_pointer((size_t *)field_value)) {
|
||||
print_object_info(f, (void *)field_value);
|
||||
/*fprintf(f, "%zu ", TO_DATA(field_value)->id);*/
|
||||
} else {
|
||||
print_unboxed(f, (int)field_value);
|
||||
}
|
||||
}
|
||||
fprintf(f, "\n");
|
||||
for (obj_field_iterator field_it = ptr_field_begin_iterator(obj_header);
|
||||
!field_is_done_iterator(&field_it);
|
||||
obj_next_field_iterator(&field_it)) {
|
||||
size_t field_value = *(size_t *)field_it.cur_field;
|
||||
if (is_valid_heap_pointer((size_t *)field_value)) { objects_dfs(f, (void *)field_value); }
|
||||
}
|
||||
}
|
||||
|
||||
FILE *print_objects_traversal (char *filename, bool marked) {
|
||||
FILE *f = fopen(filename, "w+");
|
||||
ftruncate(fileno(f), 0);
|
||||
for (heap_iterator it = heap_begin_iterator(); !heap_is_done_iterator(&it);
|
||||
heap_next_obj_iterator(&it)) {
|
||||
void *obj_header = it.current;
|
||||
data *obj_data = TO_DATA(get_object_content_ptr(obj_header));
|
||||
if ((obj_data->forward_address & 1) == marked) {
|
||||
objects_dfs(f, get_object_content_ptr(obj_header));
|
||||
}
|
||||
}
|
||||
|
||||
// resetting bit that represent mark-bit for this internal dfs-traversal
|
||||
for (heap_iterator it = heap_begin_iterator(); !heap_is_done_iterator(&it);
|
||||
heap_next_obj_iterator(&it)) {
|
||||
void *obj_header = it.current;
|
||||
data *obj_data = TO_DATA(get_object_content_ptr(obj_header));
|
||||
obj_data->forward_address &= (~2);
|
||||
}
|
||||
fflush(f);
|
||||
|
||||
// print extra roots
|
||||
for (int i = 0; i < extra_roots.current_free; i++) {
|
||||
fprintf(f, "extra root %p %p: ", extra_roots.roots[i], *(size_t **)extra_roots.roots[i]);
|
||||
}
|
||||
fflush(f);
|
||||
return f;
|
||||
}
|
||||
|
||||
int files_cmp (FILE *f1, FILE *f2) {
|
||||
int symbol1, symbol2;
|
||||
int position = 0;
|
||||
while (true) {
|
||||
symbol1 = fgetc(f1);
|
||||
symbol2 = fgetc(f2);
|
||||
if (symbol1 == EOF && symbol2 == EOF) { return -1; }
|
||||
if (symbol1 != symbol2) { return position; }
|
||||
++position;
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void *gc_alloc_on_existing_heap (size_t size) {
|
||||
if (heap.current + size <= heap.end) {
|
||||
void *p = (void *)heap.current;
|
||||
heap.current += size;
|
||||
memset(p, 0, size * sizeof(size_t));
|
||||
return p;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void *gc_alloc (size_t size) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "===============================GC cycle has started\n");
|
||||
#endif
|
||||
#ifdef FULL_INVARIANT_CHECKS
|
||||
FILE *stack_before = print_stack_content("stack-dump-before-compaction");
|
||||
FILE *heap_before = print_objects_traversal("before-mark", 0);
|
||||
fclose(heap_before);
|
||||
#endif
|
||||
mark_phase();
|
||||
#ifdef FULL_INVARIANT_CHECKS
|
||||
FILE *heap_before_compaction = print_objects_traversal("after-mark", 1);
|
||||
#endif
|
||||
|
||||
compact_phase(size);
|
||||
#ifdef FULL_INVARIANT_CHECKS
|
||||
FILE *stack_after = print_stack_content("stack-dump-after-compaction");
|
||||
FILE *heap_after_compaction = print_objects_traversal("after-compaction", 0);
|
||||
|
||||
int pos = files_cmp(stack_before, stack_after);
|
||||
if (pos >= 0) { // position of difference is found
|
||||
fprintf(stderr, "Stack is modified incorrectly, see position %d\n", pos);
|
||||
exit(1);
|
||||
}
|
||||
fclose(stack_before);
|
||||
fclose(stack_after);
|
||||
pos = files_cmp(heap_before_compaction, heap_after_compaction);
|
||||
if (pos >= 0) { // position of difference is found
|
||||
fprintf(stderr, "GC invariant is broken, pos is %d\n", pos);
|
||||
exit(1);
|
||||
}
|
||||
fclose(heap_before_compaction);
|
||||
fclose(heap_after_compaction);
|
||||
#endif
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "===============================GC cycle has finished\n");
|
||||
#endif
|
||||
return gc_alloc_on_existing_heap(size);
|
||||
}
|
||||
|
||||
static void gc_root_scan_stack () {
|
||||
for (size_t *p = (size_t *)(__gc_stack_top + 4); p < (size_t *)__gc_stack_bottom; ++p) {
|
||||
gc_test_and_mark_root((size_t **)p);
|
||||
}
|
||||
}
|
||||
|
||||
void mark_phase (void) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "marking has started\n");
|
||||
fprintf(stderr,
|
||||
"gc_root_scan_stack has started: gc_top=%p bot=%p\n",
|
||||
(void *)__gc_stack_top,
|
||||
(void *)__gc_stack_bottom);
|
||||
#endif
|
||||
gc_root_scan_stack();
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "gc_root_scan_stack has finished\n");
|
||||
fprintf(stderr, "scan_extra_roots has started\n");
|
||||
#endif
|
||||
scan_extra_roots();
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "scan_extra_roots has finished\n");
|
||||
fprintf(stderr, "scan_global_area has started\n");
|
||||
#endif
|
||||
#ifdef LAMA_ENV
|
||||
scan_global_area();
|
||||
#endif
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "scan_global_area has finished\n");
|
||||
fprintf(stderr, "marking has finished\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
void compact_phase (size_t additional_size) {
|
||||
size_t live_size = compute_locations();
|
||||
|
||||
// all in words
|
||||
size_t next_heap_size =
|
||||
MAX(live_size * EXTRA_ROOM_HEAP_COEFFICIENT + additional_size, MINIMUM_HEAP_CAPACITY);
|
||||
size_t next_heap_pseudo_size = MAX(next_heap_size, heap.size);
|
||||
|
||||
memory_chunk old_heap = heap;
|
||||
heap.begin = mremap(
|
||||
heap.begin, WORDS_TO_BYTES(heap.size), WORDS_TO_BYTES(next_heap_pseudo_size), MREMAP_MAYMOVE);
|
||||
if (heap.begin == MAP_FAILED) {
|
||||
perror("ERROR: compact_phase: mremap failed\n");
|
||||
exit(1);
|
||||
}
|
||||
heap.end = heap.begin + next_heap_pseudo_size;
|
||||
heap.size = next_heap_pseudo_size;
|
||||
heap.current = heap.begin + (old_heap.current - old_heap.begin);
|
||||
|
||||
update_references(&old_heap);
|
||||
physically_relocate(&old_heap);
|
||||
|
||||
heap.current = heap.begin + live_size;
|
||||
}
|
||||
|
||||
size_t compute_locations () {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC compute_locations started\n");
|
||||
#endif
|
||||
size_t *free_ptr = heap.begin;
|
||||
heap_iterator scan_iter = heap_begin_iterator();
|
||||
|
||||
for (; !heap_is_done_iterator(&scan_iter); heap_next_obj_iterator(&scan_iter)) {
|
||||
void *header_ptr = scan_iter.current;
|
||||
void *obj_content = get_object_content_ptr(header_ptr);
|
||||
if (is_marked(obj_content)) {
|
||||
size_t sz = BYTES_TO_WORDS(obj_size_header_ptr(header_ptr));
|
||||
// forward address is responsible for object header pointer
|
||||
set_forward_address(obj_content, (size_t)free_ptr);
|
||||
free_ptr += sz;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC compute_locations finished\n");
|
||||
#endif
|
||||
// it will return number of words
|
||||
return free_ptr - heap.begin;
|
||||
}
|
||||
|
||||
void scan_and_fix_region (memory_chunk *old_heap, void *start, void *end) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC scan_and_fix_region started\n");
|
||||
#endif
|
||||
for (size_t *ptr = (size_t *)start; ptr < (size_t *)end; ++ptr) {
|
||||
size_t ptr_value = *ptr;
|
||||
// this can't be expressed via is_valid_heap_pointer, because this pointer may point area corresponding to the old
|
||||
// heap
|
||||
if (is_valid_pointer((size_t *)ptr_value) && (size_t)old_heap->begin <= ptr_value
|
||||
&& ptr_value <= (size_t)old_heap->current) {
|
||||
void *obj_ptr = (void *)heap.begin + ((void *)ptr_value - (void *)old_heap->begin);
|
||||
void *new_addr =
|
||||
(void *)heap.begin + ((void *)get_forward_address(obj_ptr) - (void *)old_heap->begin);
|
||||
size_t content_offset = get_header_size(get_type_row_ptr(obj_ptr));
|
||||
*(void **)ptr = new_addr + content_offset;
|
||||
}
|
||||
}
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC scan_and_fix_region finished\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
void scan_and_fix_region_roots (memory_chunk *old_heap) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "extra roots started: number of extra roots %i\n", extra_roots.current_free);
|
||||
#endif
|
||||
for (int i = 0; i < extra_roots.current_free; i++) {
|
||||
size_t *ptr = (size_t *)extra_roots.roots[i];
|
||||
size_t ptr_value = *ptr;
|
||||
if (!is_valid_pointer((size_t *)ptr_value)) { continue; }
|
||||
// skip this one since it was already fixed from scanning the stack
|
||||
if ((extra_roots.roots[i] >= (void **)__gc_stack_top
|
||||
&& extra_roots.roots[i] < (void **)__gc_stack_bottom)
|
||||
#ifdef LAMA_ENV
|
||||
|| (extra_roots.roots[i] <= (void **)&__stop_custom_data
|
||||
&& extra_roots.roots[i] >= (void **)&__start_custom_data)
|
||||
#endif
|
||||
) {
|
||||
#ifdef DEBUG_VERSION
|
||||
if (is_valid_heap_pointer((size_t *)ptr_value)) {
|
||||
# ifdef DEBUG_PRINT
|
||||
fprintf(stderr,
|
||||
"|\tskip extra root: %p (%p), since it points to Lama's stack top=%p bot=%p\n",
|
||||
extra_roots.roots[i],
|
||||
(void *)ptr_value,
|
||||
(void *)__gc_stack_top,
|
||||
(void *)__gc_stack_bottom);
|
||||
# endif
|
||||
}
|
||||
# ifdef LAMA_ENV
|
||||
else if ((extra_roots.roots[i] <= (void *)&__stop_custom_data
|
||||
&& extra_roots.roots[i] >= (void *)&__start_custom_data)) {
|
||||
fprintf(
|
||||
stderr,
|
||||
"|\tskip extra root: %p (%p), since it points to Lama's static area stop=%p start=%p\n",
|
||||
extra_roots.roots[i],
|
||||
(void *)ptr_value,
|
||||
(void *)&__stop_custom_data,
|
||||
(void *)&__start_custom_data);
|
||||
exit(1);
|
||||
}
|
||||
# endif
|
||||
else {
|
||||
# ifdef DEBUG_PRINT
|
||||
fprintf(stderr,
|
||||
"|\tskip extra root: %p (%p): not a valid Lama pointer \n",
|
||||
extra_roots.roots[i],
|
||||
(void *)ptr_value);
|
||||
# endif
|
||||
}
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
if ((size_t)old_heap->begin <= ptr_value && ptr_value <= (size_t)old_heap->current) {
|
||||
void *obj_ptr = (void *)heap.begin + ((void *)ptr_value - (void *)old_heap->begin);
|
||||
void *new_addr =
|
||||
(void *)heap.begin + ((void *)get_forward_address(obj_ptr) - (void *)old_heap->begin);
|
||||
size_t content_offset = get_header_size(get_type_row_ptr(obj_ptr));
|
||||
*(void **)ptr = new_addr + content_offset;
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr,
|
||||
"|\textra root (%p) %p -> %p\n",
|
||||
extra_roots.roots[i],
|
||||
(void *)ptr_value,
|
||||
(void *)*ptr);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "|\textra roots finished\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
void update_references (memory_chunk *old_heap) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC update_references started\n");
|
||||
#endif
|
||||
heap_iterator it = heap_begin_iterator();
|
||||
while (!heap_is_done_iterator(&it)) {
|
||||
if (is_marked(get_object_content_ptr(it.current))) {
|
||||
for (obj_field_iterator field_iter = ptr_field_begin_iterator(it.current);
|
||||
!field_is_done_iterator(&field_iter);
|
||||
obj_next_ptr_field_iterator(&field_iter)) {
|
||||
|
||||
size_t *field_value = *(size_t **)field_iter.cur_field;
|
||||
if (field_value < old_heap->begin || field_value > old_heap->current) { continue; }
|
||||
// this pointer should also be modified according to old_heap->begin
|
||||
void *field_obj_content_addr =
|
||||
(void *)heap.begin + (*(void **)field_iter.cur_field - (void *)old_heap->begin);
|
||||
// important, we calculate new_addr very carefully here, because objects may relocate to another memory chunk
|
||||
void *new_addr =
|
||||
heap.begin
|
||||
+ ((size_t *)get_forward_address(field_obj_content_addr) - (size_t *)old_heap->begin);
|
||||
// update field reference to point to new_addr
|
||||
// since, we want fields to point to an actual content, we need to add this extra content_offset
|
||||
// because forward_address itself is a pointer to the object's header
|
||||
size_t content_offset = get_header_size(get_type_row_ptr(field_obj_content_addr));
|
||||
#ifdef DEBUG_VERSION
|
||||
if (!is_valid_heap_pointer((void *)(new_addr + content_offset))) {
|
||||
# ifdef DEBUG_PRINT
|
||||
fprintf(stderr,
|
||||
"ur: incorrect pointer assignment: on object with id %d",
|
||||
TO_DATA(get_object_content_ptr(it.current))->id);
|
||||
# endif
|
||||
exit(1);
|
||||
}
|
||||
#endif
|
||||
*(void **)field_iter.cur_field = new_addr + content_offset;
|
||||
}
|
||||
}
|
||||
heap_next_obj_iterator(&it);
|
||||
}
|
||||
// fix pointers from stack
|
||||
scan_and_fix_region(old_heap, (void *)__gc_stack_top + 4, (void *)__gc_stack_bottom + 4);
|
||||
|
||||
// fix pointers from extra_roots
|
||||
scan_and_fix_region_roots(old_heap);
|
||||
|
||||
#ifdef LAMA_ENV
|
||||
assert((void *)&__stop_custom_data >= (void *)&__start_custom_data);
|
||||
scan_and_fix_region(old_heap, (void *)&__start_custom_data, (void *)&__stop_custom_data);
|
||||
#endif
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC update_references finished\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
void physically_relocate (memory_chunk *old_heap) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC physically_relocate started\n");
|
||||
#endif
|
||||
heap_iterator from_iter = heap_begin_iterator();
|
||||
|
||||
while (!heap_is_done_iterator(&from_iter)) {
|
||||
void *obj = get_object_content_ptr(from_iter.current);
|
||||
heap_iterator next_iter = from_iter;
|
||||
heap_next_obj_iterator(&next_iter);
|
||||
if (is_marked(obj)) {
|
||||
// Move the object from its old location to its new location relative to
|
||||
// the heap's (possibly new) location, 'to' points to future object header
|
||||
size_t *to = heap.begin + ((size_t *)get_forward_address(obj) - (size_t *)old_heap->begin);
|
||||
memmove(to, from_iter.current, obj_size_header_ptr(from_iter.current));
|
||||
unmark_object(get_object_content_ptr(to));
|
||||
}
|
||||
from_iter = next_iter;
|
||||
}
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "GC physically_relocate finished\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
inline bool is_valid_heap_pointer (const size_t *p) {
|
||||
return !UNBOXED(p) && (size_t)heap.begin <= (size_t)p && (size_t)p <= (size_t)heap.current;
|
||||
}
|
||||
|
||||
static inline bool is_valid_pointer (const size_t *p) { return !UNBOXED(p); }
|
||||
|
||||
static inline void queue_enqueue (heap_iterator *tail_iter, void *obj) {
|
||||
void *tail = tail_iter->current;
|
||||
void *tail_content = get_object_content_ptr(tail);
|
||||
set_forward_address(tail_content, (size_t)obj);
|
||||
make_enqueued(obj);
|
||||
heap_next_obj_iterator(tail_iter);
|
||||
}
|
||||
|
||||
static inline void *queue_dequeue (heap_iterator *head_iter) {
|
||||
void *head = head_iter->current;
|
||||
void *head_content = get_object_content_ptr(head);
|
||||
void *value = (void *)get_forward_address(head_content);
|
||||
make_dequeued(value);
|
||||
heap_next_obj_iterator(head_iter);
|
||||
return value;
|
||||
}
|
||||
|
||||
void mark (void *obj) {
|
||||
if (!is_valid_heap_pointer(obj) || is_marked(obj)) { return; }
|
||||
|
||||
// TL;DR: [q_head_iter, q_tail_iter) q_head_iter -- current dequeue's victim, q_tail_iter -- place for next enqueue
|
||||
// in forward_address of corresponding element we store address of element to be removed after dequeue operation
|
||||
heap_iterator q_head_iter = heap_begin_iterator();
|
||||
// iterator where we will write address of the element that is going to be enqueued
|
||||
heap_iterator q_tail_iter = q_head_iter;
|
||||
queue_enqueue(&q_tail_iter, obj);
|
||||
|
||||
// invariant: queue contains only objects that are valid heap pointers (each corresponding to content of unmarked
|
||||
// object) also each object is in queue only once
|
||||
while (q_head_iter.current != q_tail_iter.current) {
|
||||
// while the queue is non-empty
|
||||
void *cur_obj = queue_dequeue(&q_head_iter);
|
||||
mark_object(cur_obj);
|
||||
void *header_ptr = get_obj_header_ptr(cur_obj);
|
||||
for (obj_field_iterator ptr_field_it = ptr_field_begin_iterator(header_ptr);
|
||||
!field_is_done_iterator(&ptr_field_it);
|
||||
obj_next_ptr_field_iterator(&ptr_field_it)) {
|
||||
void *field_value = *(void **)ptr_field_it.cur_field;
|
||||
if (!is_valid_heap_pointer(field_value) || is_marked(field_value)
|
||||
|| is_enqueued(field_value)) {
|
||||
continue;
|
||||
}
|
||||
// if we came to this point it must be true that field_value is unmarked and not currently in queue
|
||||
// thus, we maintain the invariant
|
||||
queue_enqueue(&q_tail_iter, field_value);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void scan_extra_roots (void) {
|
||||
for (int i = 0; i < extra_roots.current_free; ++i) {
|
||||
// this dereferencing is safe since runtime is pushing correct pointers into extra_roots
|
||||
mark(*extra_roots.roots[i]);
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef LAMA_ENV
|
||||
void scan_global_area (void) {
|
||||
// __start_custom_data is pointing to beginning of global area, thus all dereferencings are safe
|
||||
for (size_t *ptr = (size_t *)&__start_custom_data; ptr < (size_t *)&__stop_custom_data; ++ptr) {
|
||||
mark(*(void **)ptr);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
extern void gc_test_and_mark_root (size_t **root) {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr,
|
||||
"\troot = %p (%p), stack addresses: [%p, %p)\n",
|
||||
root,
|
||||
*root,
|
||||
(void *)__gc_stack_top + 4,
|
||||
(void *)__gc_stack_bottom);
|
||||
#endif
|
||||
mark((void *)*root);
|
||||
}
|
||||
|
||||
void __gc_init (void) {
|
||||
__gc_stack_bottom = (size_t)__builtin_frame_address(1) + 4;
|
||||
__init();
|
||||
}
|
||||
|
||||
void __init (void) {
|
||||
signal(SIGSEGV, handler);
|
||||
size_t space_size = INIT_HEAP_SIZE * sizeof(size_t);
|
||||
|
||||
srandom(time(NULL));
|
||||
|
||||
heap.begin = mmap(
|
||||
NULL, space_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_32BIT, -1, 0);
|
||||
if (heap.begin == MAP_FAILED) {
|
||||
perror("ERROR: __init: mmap failed\n");
|
||||
exit(1);
|
||||
}
|
||||
heap.end = heap.begin + INIT_HEAP_SIZE;
|
||||
heap.size = INIT_HEAP_SIZE;
|
||||
heap.current = heap.begin;
|
||||
clear_extra_roots();
|
||||
}
|
||||
|
||||
extern void __shutdown (void) {
|
||||
munmap(heap.begin, heap.size);
|
||||
#ifdef DEBUG_VERSION
|
||||
cur_id = 0;
|
||||
#endif
|
||||
heap.begin = NULL;
|
||||
heap.end = NULL;
|
||||
heap.size = 0;
|
||||
heap.current = NULL;
|
||||
__gc_stack_top = 0;
|
||||
__gc_stack_bottom = 0;
|
||||
}
|
||||
|
||||
void clear_extra_roots (void) { extra_roots.current_free = 0; }
|
||||
|
||||
void push_extra_root (void **p) {
|
||||
if (extra_roots.current_free >= MAX_EXTRA_ROOTS_NUMBER) {
|
||||
perror("ERROR: push_extra_roots: extra_roots_pool overflow\n");
|
||||
exit(1);
|
||||
}
|
||||
assert(p >= (void **)__gc_stack_top || p < (void **)__gc_stack_bottom);
|
||||
extra_roots.roots[extra_roots.current_free] = p;
|
||||
extra_roots.current_free++;
|
||||
}
|
||||
|
||||
void pop_extra_root (void **p) {
|
||||
if (extra_roots.current_free == 0) {
|
||||
perror("ERROR: pop_extra_root: extra_roots are empty\n");
|
||||
exit(1);
|
||||
}
|
||||
extra_roots.current_free--;
|
||||
if (extra_roots.roots[extra_roots.current_free] != p) {
|
||||
perror("ERROR: pop_extra_root: stack invariant violation\n");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
/* Functions for tests */
|
||||
|
||||
#if defined(DEBUG_VERSION)
|
||||
size_t objects_snapshot (int *object_ids_buf, size_t object_ids_buf_size) {
|
||||
size_t *ids_ptr = (size_t *)object_ids_buf;
|
||||
size_t i = 0;
|
||||
for (heap_iterator it = heap_begin_iterator();
|
||||
!heap_is_done_iterator(&it) && i < object_ids_buf_size;
|
||||
heap_next_obj_iterator(&it), ++i) {
|
||||
void *header_ptr = it.current;
|
||||
data *d = TO_DATA(get_object_content_ptr(header_ptr));
|
||||
ids_ptr[i] = d->id;
|
||||
}
|
||||
return i;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
extern char *de_hash (int);
|
||||
|
||||
void dump_heap () {
|
||||
size_t i = 0;
|
||||
for (heap_iterator it = heap_begin_iterator(); !heap_is_done_iterator(&it);
|
||||
heap_next_obj_iterator(&it), ++i) {
|
||||
void *header_ptr = it.current;
|
||||
void *content_ptr = get_object_content_ptr(header_ptr);
|
||||
data *d = TO_DATA(content_ptr);
|
||||
lama_type t = get_type_header_ptr(header_ptr);
|
||||
switch (t) {
|
||||
case ARRAY: fprintf(stderr, "of kind ARRAY\n"); break;
|
||||
case CLOSURE: fprintf(stderr, "of kind CLOSURE\n"); break;
|
||||
case STRING: fprintf(stderr, "of kind STRING\n"); break;
|
||||
case SEXP:
|
||||
fprintf(stderr, "of kind SEXP with tag %s\n", de_hash(TO_SEXP(content_ptr)->tag));
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void set_stack (size_t stack_top, size_t stack_bottom) {
|
||||
__gc_stack_top = stack_top;
|
||||
__gc_stack_bottom = stack_bottom;
|
||||
}
|
||||
|
||||
void set_extra_roots (size_t extra_roots_size, void **extra_roots_ptr) {
|
||||
memcpy(extra_roots.roots, extra_roots_ptr, MIN(sizeof(extra_roots.roots), extra_roots_size));
|
||||
clear_extra_roots();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* Utility functions */
|
||||
|
||||
size_t get_forward_address (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
return GET_FORWARD_ADDRESS(d->forward_address);
|
||||
}
|
||||
|
||||
void set_forward_address (void *obj, size_t addr) {
|
||||
data *d = TO_DATA(obj);
|
||||
SET_FORWARD_ADDRESS(d->forward_address, addr);
|
||||
}
|
||||
|
||||
bool is_marked (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
int mark_bit = GET_MARK_BIT(d->forward_address);
|
||||
return mark_bit;
|
||||
}
|
||||
|
||||
void mark_object (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
SET_MARK_BIT(d->forward_address);
|
||||
}
|
||||
|
||||
void unmark_object (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
RESET_MARK_BIT(d->forward_address);
|
||||
}
|
||||
|
||||
bool is_enqueued (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
return IS_ENQUEUED(d->forward_address) != 0;
|
||||
}
|
||||
|
||||
void make_enqueued (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
MAKE_ENQUEUED(d->forward_address);
|
||||
}
|
||||
|
||||
void make_dequeued (void *obj) {
|
||||
data *d = TO_DATA(obj);
|
||||
MAKE_DEQUEUED(d->forward_address);
|
||||
}
|
||||
|
||||
heap_iterator heap_begin_iterator () {
|
||||
heap_iterator it = {.current = heap.begin};
|
||||
return it;
|
||||
}
|
||||
|
||||
void heap_next_obj_iterator (heap_iterator *it) {
|
||||
void *ptr = it->current;
|
||||
size_t obj_size = obj_size_header_ptr(ptr);
|
||||
// make sure we take alignment into consideration
|
||||
obj_size = BYTES_TO_WORDS(obj_size);
|
||||
it->current += obj_size;
|
||||
}
|
||||
|
||||
bool heap_is_done_iterator (heap_iterator *it) { return it->current >= heap.current; }
|
||||
|
||||
lama_type get_type_row_ptr (void *ptr) {
|
||||
data *data_ptr = TO_DATA(ptr);
|
||||
return get_type_header_ptr(data_ptr);
|
||||
}
|
||||
|
||||
lama_type get_type_header_ptr (void *ptr) {
|
||||
int *header = (int *)ptr;
|
||||
switch (TAG(*header)) {
|
||||
case ARRAY_TAG: return ARRAY;
|
||||
case STRING_TAG: return STRING;
|
||||
case CLOSURE_TAG: return CLOSURE;
|
||||
case SEXP_TAG: return SEXP;
|
||||
default: {
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "ERROR: get_type_header_ptr: unknown object header, cur_id=%d", cur_id);
|
||||
raise(SIGINT); // only for debug purposes
|
||||
#else
|
||||
# ifdef FULL_INVARIANT_CHECKS
|
||||
# ifdef DEBUG_PRINT
|
||||
fprintf(stderr,
|
||||
"ERROR: get_type_header_ptr: unknown object header, ptr is %p, tag %i, heap size is "
|
||||
"%d cur_id=%d stack_top=%p stack_bot=%p ",
|
||||
ptr,
|
||||
TAG(*header),
|
||||
heap.size,
|
||||
cur_id,
|
||||
(void *)__gc_stack_top,
|
||||
(void *)__gc_stack_bottom);
|
||||
# endif
|
||||
FILE *heap_before_compaction = print_objects_traversal("dump_kill", 1);
|
||||
fclose(heap_before_compaction);
|
||||
# endif
|
||||
kill(getpid(), SIGSEGV);
|
||||
#endif
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
size_t obj_size_row_ptr (void *ptr) {
|
||||
data *data_ptr = TO_DATA(ptr);
|
||||
return obj_size_header_ptr(data_ptr);
|
||||
}
|
||||
|
||||
size_t obj_size_header_ptr (void *ptr) {
|
||||
int len = LEN(*(int *)ptr);
|
||||
switch (get_type_header_ptr(ptr)) {
|
||||
case ARRAY: return array_size(len);
|
||||
case STRING: return string_size(len);
|
||||
case CLOSURE: return closure_size(len);
|
||||
case SEXP: return sexp_size(len);
|
||||
default: {
|
||||
#ifdef DEBUG_VERSION
|
||||
fprintf(stderr, "ERROR: obj_size_header_ptr: unknown object header, cur_id=%d", cur_id);
|
||||
raise(SIGINT); // only for debug purposes
|
||||
#else
|
||||
perror("ERROR: obj_size_header_ptr: unknown object header\n");
|
||||
#endif
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
size_t array_size (size_t sz) { return get_header_size(ARRAY) + MEMBER_SIZE * sz; }
|
||||
|
||||
size_t string_size (size_t len) {
|
||||
// string should be null terminated
|
||||
return get_header_size(STRING) + len + 1;
|
||||
}
|
||||
|
||||
size_t closure_size (size_t sz) { return get_header_size(CLOSURE) + MEMBER_SIZE * sz; }
|
||||
|
||||
size_t sexp_size (size_t members) { return get_header_size(SEXP) + MEMBER_SIZE * (members + 1); }
|
||||
|
||||
obj_field_iterator field_begin_iterator (void *obj) {
|
||||
lama_type type = get_type_header_ptr(obj);
|
||||
obj_field_iterator it = {.type = type, .obj_ptr = obj, .cur_field = get_object_content_ptr(obj)};
|
||||
switch (type) {
|
||||
case STRING: {
|
||||
it.cur_field = get_end_of_obj(it.obj_ptr);
|
||||
break;
|
||||
}
|
||||
case CLOSURE:
|
||||
case SEXP: {
|
||||
it.cur_field += MEMBER_SIZE;
|
||||
break;
|
||||
}
|
||||
default: break;
|
||||
}
|
||||
return it;
|
||||
}
|
||||
|
||||
obj_field_iterator ptr_field_begin_iterator (void *obj) {
|
||||
obj_field_iterator it = field_begin_iterator(obj);
|
||||
// corner case when obj has no fields
|
||||
if (field_is_done_iterator(&it)) { return it; }
|
||||
if (is_valid_pointer(*(size_t **)it.cur_field)) { return it; }
|
||||
obj_next_ptr_field_iterator(&it);
|
||||
return it;
|
||||
}
|
||||
|
||||
void obj_next_field_iterator (obj_field_iterator *it) { it->cur_field += MEMBER_SIZE; }
|
||||
|
||||
void obj_next_ptr_field_iterator (obj_field_iterator *it) {
|
||||
do {
|
||||
obj_next_field_iterator(it);
|
||||
} while (!field_is_done_iterator(it) && !is_valid_pointer(*(size_t **)it->cur_field));
|
||||
}
|
||||
|
||||
bool field_is_done_iterator (obj_field_iterator *it) {
|
||||
return it->cur_field >= get_end_of_obj(it->obj_ptr);
|
||||
}
|
||||
|
||||
void *get_obj_header_ptr (void *ptr) {
|
||||
lama_type type = get_type_row_ptr(ptr);
|
||||
return ptr - get_header_size(type);
|
||||
}
|
||||
|
||||
void *get_object_content_ptr (void *header_ptr) {
|
||||
lama_type type = get_type_header_ptr(header_ptr);
|
||||
return header_ptr + get_header_size(type);
|
||||
}
|
||||
|
||||
void *get_end_of_obj (void *header_ptr) { return header_ptr + obj_size_header_ptr(header_ptr); }
|
||||
|
||||
size_t get_header_size (lama_type type) {
|
||||
switch (type) {
|
||||
case STRING:
|
||||
case CLOSURE:
|
||||
case ARRAY:
|
||||
case SEXP: return DATA_HEADER_SZ;
|
||||
default: perror("ERROR: get_header_size: unknown object type\n");
|
||||
#ifdef DEBUG_VERSION
|
||||
raise(SIGINT); // only for debug purposes
|
||||
#endif
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
void *alloc_string (int len) {
|
||||
data *obj = alloc(string_size(len));
|
||||
obj->data_header = STRING_TAG | (len << 3);
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "%p, [STRING] tag=%zu\n", obj, TAG(obj->data_header));
|
||||
#endif
|
||||
#ifdef DEBUG_VERSION
|
||||
obj->id = cur_id;
|
||||
#endif
|
||||
obj->forward_address = 0;
|
||||
return obj;
|
||||
}
|
||||
|
||||
void *alloc_array (int len) {
|
||||
data *obj = alloc(array_size(len));
|
||||
obj->data_header = ARRAY_TAG | (len << 3);
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "%p, [ARRAY] tag=%zu\n", obj, TAG(obj->data_header));
|
||||
#endif
|
||||
#ifdef DEBUG_VERSION
|
||||
obj->id = cur_id;
|
||||
#endif
|
||||
obj->forward_address = 0;
|
||||
return obj;
|
||||
}
|
||||
|
||||
void *alloc_sexp (int members) {
|
||||
sexp *obj = alloc(sexp_size(members));
|
||||
obj->data_header = SEXP_TAG | (members << 3);
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "%p, SEXP tag=%zu\n", obj, TAG(obj->data_header));
|
||||
#endif
|
||||
#ifdef DEBUG_VERSION
|
||||
obj->id = cur_id;
|
||||
#endif
|
||||
obj->forward_address = 0;
|
||||
obj->tag = 0;
|
||||
return obj;
|
||||
}
|
||||
|
||||
void *alloc_closure (int captured) {
|
||||
|
||||
data *obj = alloc(closure_size(captured));
|
||||
obj->data_header = CLOSURE_TAG | (captured << 3);
|
||||
#if defined(DEBUG_VERSION) && defined(DEBUG_PRINT)
|
||||
fprintf(stderr, "%p, [CLOSURE] tag=%zu\n", obj, TAG(obj->data_header));
|
||||
#endif
|
||||
#ifdef DEBUG_VERSION
|
||||
obj->id = cur_id;
|
||||
#endif
|
||||
obj->forward_address = 0;
|
||||
return obj;
|
||||
}
|
||||
251
runtime/gc.h
Normal file
251
runtime/gc.h
Normal file
|
|
@ -0,0 +1,251 @@
|
|||
// ============================================================================
|
||||
// GC
|
||||
// ============================================================================
|
||||
// This is an implementation of a compactifying garbage collection algorithm.
|
||||
// GC algorithm itself consists of two major stages:
|
||||
// 1. Marking roots
|
||||
// 2. Compacting stage
|
||||
// Compacting is implemented in a very similar fashion to LISP2 algorithm,
|
||||
// which is well-known.
|
||||
// Most important pieces of code to discover to understand how everything works:
|
||||
// - void *gc_alloc (size_t): this function is basically called whenever we are
|
||||
// not able to allocate memory on the existing heap via simple bump allocator.
|
||||
// - mark_phase(): this function will tell you everything you need to know
|
||||
// about marking. I would also recommend to pay attention to the fact that
|
||||
// marking is implemented without usage of any additional memory. Already
|
||||
// allocated space is sufficient (for details see 'void mark (void *obj)').
|
||||
// - void compact_phase (size_t additional_size): the whole compaction phase
|
||||
// can be understood by looking at this piece of code plus couple of other
|
||||
// functions used in there. It is basically an implementation of LISP2.
|
||||
|
||||
#ifndef __LAMA_GC__
|
||||
#define __LAMA_GC__
|
||||
|
||||
#include "runtime_common.h"
|
||||
|
||||
#define GET_MARK_BIT(x) (((int)(x)) & 1)
|
||||
#define SET_MARK_BIT(x) (x = (((int)(x)) | 1))
|
||||
#define IS_ENQUEUED(x) (((int)(x)) & 2)
|
||||
#define MAKE_ENQUEUED(x) (x = (((int)(x)) | 2))
|
||||
#define MAKE_DEQUEUED(x) (x = (((int)(x)) & (~2)))
|
||||
#define RESET_MARK_BIT(x) (x = (((int)(x)) & (~1)))
|
||||
// since last 2 bits are used for mark-bit and enqueued-bit and due to correct
|
||||
// alignment we can expect that last 2 bits don't influence address (they
|
||||
// should always be zero)
|
||||
#define GET_FORWARD_ADDRESS(x) (((size_t)(x)) & (~3))
|
||||
// take the last two bits as they are and make all others zero
|
||||
#define SET_FORWARD_ADDRESS(x, addr) (x = ((x & 3) | ((int)(addr))))
|
||||
// if heap is full after gc shows in how many times it has to be extended
|
||||
#define EXTRA_ROOM_HEAP_COEFFICIENT 2
|
||||
#ifdef DEBUG_VERSION
|
||||
# define MINIMUM_HEAP_CAPACITY (8)
|
||||
#else
|
||||
# define MINIMUM_HEAP_CAPACITY (1 << 2)
|
||||
#endif
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stddef.h>
|
||||
|
||||
typedef enum { ARRAY, CLOSURE, STRING, SEXP } lama_type;
|
||||
|
||||
typedef struct {
|
||||
size_t *current;
|
||||
} heap_iterator;
|
||||
|
||||
typedef struct {
|
||||
lama_type type; // holds type of object, which fields we are iterating over
|
||||
void *obj_ptr; // place to store a pointer to the object header
|
||||
void *cur_field;
|
||||
} obj_field_iterator;
|
||||
|
||||
// Memory pool for linear memory allocation
|
||||
typedef struct {
|
||||
size_t *begin;
|
||||
size_t *end;
|
||||
size_t *current;
|
||||
size_t size;
|
||||
} memory_chunk;
|
||||
|
||||
|
||||
// the only GC-related function that should be exposed, others are useful for tests and internal implementation
|
||||
// allocates object of the given size on the heap
|
||||
void *alloc(size_t);
|
||||
// takes number of words as a parameter
|
||||
void *gc_alloc(size_t);
|
||||
// takes number of words as a parameter
|
||||
void *gc_alloc_on_existing_heap(size_t);
|
||||
|
||||
// specific for mark-and-compact_phase gc
|
||||
void mark (void *obj);
|
||||
void mark_phase (void);
|
||||
// marks each pointer from extra roots
|
||||
void scan_extra_roots (void);
|
||||
#ifdef LAMA_ENV
|
||||
// marks each valid pointer from global area
|
||||
void scan_global_area (void);
|
||||
#endif
|
||||
// takes number of words that are required to be allocated somewhere on the heap
|
||||
void compact_phase (size_t additional_size);
|
||||
// specific for Lisp-2 algorithm
|
||||
size_t compute_locations ();
|
||||
void update_references (memory_chunk *);
|
||||
void physically_relocate (memory_chunk *);
|
||||
|
||||
|
||||
// ============================================================================
|
||||
// GC extra roots
|
||||
// ============================================================================
|
||||
// Lama's program stack is continuous, i.e. it never interleaves with runtime
|
||||
// function's activation records. But some valid Lama's pointers can escape
|
||||
// into runtime. Those values (theirs stack addresses) has to be registered in
|
||||
// an auxiliary data structure called `extra_roots_pool`.
|
||||
// extra_roots_pool is a simple LIFO stack. During `pop` it compares that pop's
|
||||
// argument is equal to the current stack top.
|
||||
#define MAX_EXTRA_ROOTS_NUMBER 32
|
||||
|
||||
typedef struct {
|
||||
int current_free;
|
||||
void **roots[MAX_EXTRA_ROOTS_NUMBER];
|
||||
} extra_roots_pool;
|
||||
|
||||
void clear_extra_roots (void);
|
||||
void push_extra_root (void **p);
|
||||
void pop_extra_root (void **p);
|
||||
|
||||
|
||||
// ============================================================================
|
||||
// Implemented in GASM: see gc_runtime.s
|
||||
// ============================================================================
|
||||
// MANDATORY TO CALL BEFORE ANY INTERACTION WITH GC (apart from cases where we
|
||||
// are working with virtual stack as happens in tests)
|
||||
void __gc_init (void);
|
||||
|
||||
// should be called before interaction with GC in case of using in tests with
|
||||
// virtual stack, otherwise it is automatically invoked by `__gc_init`
|
||||
void __init (void);
|
||||
|
||||
// mostly useful for tests but basically you want to call this in case you want
|
||||
// to deallocate all object allocated via GC
|
||||
extern void __shutdown (void);
|
||||
|
||||
|
||||
// ============================================================================
|
||||
// invoked from GASM: see gc_runtime.s
|
||||
// ============================================================================
|
||||
extern void gc_test_and_mark_root (size_t **root);
|
||||
bool is_valid_heap_pointer (const size_t *);
|
||||
static inline bool is_valid_pointer (const size_t *);
|
||||
|
||||
|
||||
// ============================================================================
|
||||
// Auxiliary functions for tests
|
||||
// ============================================================================
|
||||
#if defined(DEBUG_VERSION)
|
||||
// makes a snapshot of current objects in heap (both alive and dead), writes these ids to object_ids_buf,
|
||||
// returns number of ids dumped
|
||||
// object_ids_buf is pointer to area preallocated by user for dumping ids of objects in heap
|
||||
// object_ids_buf_size is in WORDS, NOT BYTES
|
||||
size_t objects_snapshot (int *object_ids_buf, size_t object_ids_buf_size);
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
// essential function to mock program stack
|
||||
void set_stack (size_t stack_top, size_t stack_bottom);
|
||||
|
||||
// function to mock extra roots (Lama specific)
|
||||
void set_extra_roots (size_t extra_roots_size, void **extra_roots_ptr);
|
||||
#endif
|
||||
|
||||
|
||||
// ============================================================================
|
||||
// Utility functions
|
||||
// ============================================================================
|
||||
// accepts pointer to the start of the region and to the end of the region
|
||||
// scans it and if it meets a pointer, it should be modified in according to forward address
|
||||
void scan_and_fix_region (memory_chunk *old_heap, void *start, void *end);
|
||||
|
||||
// takes a pointer to an object content as an argument, returns forwarding address
|
||||
size_t get_forward_address (void *obj);
|
||||
|
||||
// takes a pointer to an object content as an argument, sets forwarding address to value 'addr'
|
||||
void set_forward_address (void *obj, size_t addr);
|
||||
|
||||
// takes a pointer to an object content as an argument, returns whether this object was marked as live
|
||||
bool is_marked (void *obj);
|
||||
|
||||
// takes a pointer to an object content as an argument, marks the object as live
|
||||
void mark_object (void *obj);
|
||||
|
||||
// takes a pointer to an object content as an argument, marks the object as dead
|
||||
void unmark_object (void *obj);
|
||||
|
||||
// takes a pointer to an object content as an argument, returns whether this object was enqueued to the queue (which is used in mark phase)
|
||||
bool is_enqueued (void *obj);
|
||||
|
||||
// takes a pointer to an object content as an argument, marks object as enqueued
|
||||
void make_enqueued (void *obj);
|
||||
|
||||
// takes a pointer to an object content as an argument, unmarks object as enqueued
|
||||
void make_dequeued (void *obj);
|
||||
|
||||
// returns iterator to an object with the lowest address
|
||||
heap_iterator heap_begin_iterator ();
|
||||
void heap_next_obj_iterator (heap_iterator *it);
|
||||
bool heap_is_done_iterator (heap_iterator *it);
|
||||
|
||||
// returns correct type when pointer to actual data is passed (header is excluded)
|
||||
lama_type get_type_row_ptr (void *ptr);
|
||||
// returns correct type when pointer to an object header is passed
|
||||
lama_type get_type_header_ptr (void *ptr);
|
||||
|
||||
// returns correct object size (together with header) of an object, ptr is pointer to an actual data is passed (header is excluded)
|
||||
size_t obj_size_row_ptr (void *ptr);
|
||||
// returns correct object size (together with header) of an object, ptr is pointer to an object header
|
||||
size_t obj_size_header_ptr (void *ptr);
|
||||
|
||||
// returns total padding size that we need to store given object type
|
||||
size_t get_header_size (lama_type type);
|
||||
|
||||
// returns number of bytes that are required to allocate array with 'sz' elements (header included)
|
||||
size_t array_size (size_t sz);
|
||||
|
||||
// returns number of bytes that are required to allocate string of length 'l' (header included)
|
||||
size_t string_size (size_t len);
|
||||
|
||||
// returns number of bytes that are required to allocate closure with 'sz-1' captured values (header included)
|
||||
size_t closure_size (size_t sz);
|
||||
|
||||
// returns number of bytes that are required to allocate s-expression with 'members' fields (header included)
|
||||
size_t sexp_size (size_t members);
|
||||
|
||||
// returns an iterator over object fields, obj is ptr to object header
|
||||
// (in case of s-exp, it is mandatory that obj ptr is very beginning of the object,
|
||||
// considering that now we store two versions of header in there)
|
||||
obj_field_iterator field_begin_iterator (void *obj);
|
||||
|
||||
// returns an iterator over object fields which are actual pointers, obj is ptr to object header
|
||||
// (in case of s-exp, it is mandatory that obj ptr is very beginning of the object,
|
||||
// considering that now we store two versions of header in there)
|
||||
obj_field_iterator ptr_field_begin_iterator (void *obj);
|
||||
|
||||
// moves the iterator to next object field
|
||||
void obj_next_field_iterator (obj_field_iterator *it);
|
||||
|
||||
// moves the iterator to the next object field which is an actual pointer
|
||||
void obj_next_ptr_field_iterator (obj_field_iterator *it);
|
||||
|
||||
// returns if we are done iterating over fields of the object
|
||||
bool field_is_done_iterator (obj_field_iterator *it);
|
||||
|
||||
// ptr is pointer to the actual object content, returns pointer to the very beginning of the object (header)
|
||||
void *get_obj_header_ptr (void *ptr);
|
||||
void *get_object_content_ptr (void *header_ptr);
|
||||
void *get_end_of_obj (void *header_ptr);
|
||||
|
||||
void *alloc_string (int len);
|
||||
void *alloc_array (int len);
|
||||
void *alloc_sexp (int members);
|
||||
void *alloc_closure (int captured);
|
||||
|
||||
#endif
|
||||
|
|
@ -1,116 +0,0 @@
|
|||
.data
|
||||
printf_format: .string "Stack root: %lx\n"
|
||||
printf_format2: .string "BOT: %lx\n"
|
||||
printf_format3: .string "TOP: %lx\n"
|
||||
printf_format4: .string "EAX: %lx\n"
|
||||
printf_format5: .string "LOL\n"
|
||||
__gc_stack_bottom: .long 0
|
||||
__gc_stack_top: .long 0
|
||||
|
||||
.globl __pre_gc
|
||||
.globl __post_gc
|
||||
.globl __gc_init
|
||||
.globl __gc_root_scan_stack
|
||||
.globl __gc_stack_top
|
||||
.globl __gc_stack_bottom
|
||||
.extern init_pool
|
||||
.extern gc_test_and_copy_root
|
||||
.text
|
||||
|
||||
__gc_init: movl %ebp, __gc_stack_bottom
|
||||
addl $4, __gc_stack_bottom
|
||||
call __init
|
||||
ret
|
||||
|
||||
// if __gc_stack_top is equal to 0
|
||||
// then set __gc_stack_top to %ebp
|
||||
// else return
|
||||
__pre_gc:
|
||||
pushl %eax
|
||||
movl __gc_stack_top, %eax
|
||||
cmpl $0, %eax
|
||||
jne __pre_gc_2
|
||||
movl %ebp, %eax
|
||||
// addl $8, %eax
|
||||
movl %eax, __gc_stack_top
|
||||
__pre_gc_2:
|
||||
popl %eax
|
||||
ret
|
||||
|
||||
// if __gc_stack_top has been set by the caller
|
||||
// (i.e. it is equal to its %ebp)
|
||||
// then set __gc_stack_top to 0
|
||||
// else return
|
||||
__post_gc:
|
||||
pushl %eax
|
||||
movl __gc_stack_top, %eax
|
||||
cmpl %eax, %ebp
|
||||
jnz __post_gc2
|
||||
movl $0, __gc_stack_top
|
||||
__post_gc2:
|
||||
popl %eax
|
||||
ret
|
||||
|
||||
// Scan stack for roots
|
||||
// strting from __gc_stack_top
|
||||
// till __gc_stack_bottom
|
||||
__gc_root_scan_stack:
|
||||
pushl %ebp
|
||||
movl %esp, %ebp
|
||||
pushl %ebx
|
||||
pushl %edx
|
||||
movl __gc_stack_top, %eax
|
||||
jmp next
|
||||
|
||||
loop:
|
||||
movl (%eax), %ebx
|
||||
|
||||
// check that it is not a pointer to code section
|
||||
// i.e. the following is not true:
|
||||
// __executable_start <= (%eax) <= __etext
|
||||
check11:
|
||||
leal __executable_start, %edx
|
||||
cmpl %ebx, %edx
|
||||
jna check12
|
||||
jmp check21
|
||||
|
||||
check12:
|
||||
leal __etext, %edx
|
||||
cmpl %ebx, %edx
|
||||
jnb next
|
||||
|
||||
// check that it is not a pointer into the program stack
|
||||
// i.e. the following is not true:
|
||||
// __gc_stack_bottom <= (%eax) <= __gc_stack_top
|
||||
check21:
|
||||
cmpl %ebx, __gc_stack_top
|
||||
jna check22
|
||||
jmp loop2
|
||||
|
||||
check22:
|
||||
cmpl %ebx, __gc_stack_bottom
|
||||
jnb next
|
||||
|
||||
// check if it a valid pointer
|
||||
// i.e. the lastest bit is set to zero
|
||||
loop2:
|
||||
andl $0x00000001, %ebx
|
||||
jnz next
|
||||
gc_run_t:
|
||||
pushl %eax
|
||||
pushl %eax
|
||||
call gc_test_and_copy_root
|
||||
addl $4, %esp
|
||||
popl %eax
|
||||
|
||||
next:
|
||||
addl $4, %eax
|
||||
cmpl %eax, __gc_stack_bottom
|
||||
jne loop
|
||||
returnn:
|
||||
movl $0, %eax
|
||||
popl %edx
|
||||
popl %ebx
|
||||
movl %ebp, %esp
|
||||
popl %ebp
|
||||
ret
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
ERROR: pop_extra_root: extra_roots are empty
|
||||
: Success
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
ERROR: push_extra_roots: extra_roots_pool overflow
|
||||
: Success
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
ERROR: pop_extra_root: stack invariant violation
|
||||
: Success
|
||||
5
runtime/negative_scenarios/extra_roots_empty_pop_neg.c
Normal file
5
runtime/negative_scenarios/extra_roots_empty_pop_neg.c
Normal file
|
|
@ -0,0 +1,5 @@
|
|||
#include "../gc.h"
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
int main () { pop_extra_root((void **)NULL); }
|
||||
7
runtime/negative_scenarios/extra_roots_overflow_neg.c
Normal file
7
runtime/negative_scenarios/extra_roots_overflow_neg.c
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
#include "../gc.h"
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
int main () {
|
||||
for (size_t i = 0; i < MAX_EXTRA_ROOTS_NUMBER + 1; ++i) { push_extra_root(NULL); }
|
||||
}
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
#include "../gc.h"
|
||||
|
||||
int main () {
|
||||
push_extra_root(NULL);
|
||||
pop_extra_root((void **)239);
|
||||
}
|
||||
2140
runtime/runtime.c
2140
runtime/runtime.c
File diff suppressed because it is too large
Load diff
|
|
@ -1,21 +1,20 @@
|
|||
# ifndef __LAMA_RUNTIME__
|
||||
# define __LAMA_RUNTIME__
|
||||
#ifndef __LAMA_RUNTIME__
|
||||
#define __LAMA_RUNTIME__
|
||||
|
||||
# include <stdio.h>
|
||||
# include <stdio.h>
|
||||
# include <string.h>
|
||||
# include <stdarg.h>
|
||||
# include <stdlib.h>
|
||||
# include <sys/mman.h>
|
||||
# include <assert.h>
|
||||
# include <errno.h>
|
||||
# include <regex.h>
|
||||
# include <time.h>
|
||||
# include <limits.h>
|
||||
# include <ctype.h>
|
||||
#include <assert.h>
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
#include <limits.h>
|
||||
#include <regex.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/mman.h>
|
||||
#include <time.h>
|
||||
|
||||
# define WORD_SIZE (CHAR_BIT * sizeof(int))
|
||||
#define WORD_SIZE (CHAR_BIT * sizeof(int))
|
||||
|
||||
void failure (char *s, ...);
|
||||
|
||||
# endif
|
||||
#endif
|
||||
|
|
|
|||
73
runtime/runtime_common.h
Normal file
73
runtime/runtime_common.h
Normal file
|
|
@ -0,0 +1,73 @@
|
|||
#ifndef __LAMA_RUNTIME_COMMON__
|
||||
#define __LAMA_RUNTIME_COMMON__
|
||||
#include <stddef.h>
|
||||
|
||||
// this flag makes GC behavior a bit different for testing purposes.
|
||||
//#define DEBUG_VERSION
|
||||
//#define FULL_INVARIANT_CHECKS
|
||||
|
||||
#define STRING_TAG 0x00000001
|
||||
#define ARRAY_TAG 0x00000003
|
||||
#define SEXP_TAG 0x00000005
|
||||
#define CLOSURE_TAG 0x00000007
|
||||
#define UNBOXED_TAG 0x00000009 // Not actually a data_header; used to return from LkindOf
|
||||
|
||||
#define LEN(x) ((x & 0xFFFFFFF8) >> 3)
|
||||
#define TAG(x) (x & 0x00000007)
|
||||
|
||||
#define SEXP_ONLY_HEADER_SZ (sizeof(int))
|
||||
|
||||
#ifndef DEBUG_VERSION
|
||||
# define DATA_HEADER_SZ (sizeof(size_t) + sizeof(int))
|
||||
#else
|
||||
# define DATA_HEADER_SZ (sizeof(size_t) + sizeof(size_t) + sizeof(int))
|
||||
#endif
|
||||
|
||||
#define MEMBER_SIZE sizeof(int)
|
||||
|
||||
#define TO_DATA(x) ((data *)((char *)(x)-DATA_HEADER_SZ))
|
||||
#define TO_SEXP(x) ((sexp *)((char *)(x)-DATA_HEADER_SZ))
|
||||
|
||||
#define UNBOXED(x) (((int)(x)) & 0x0001)
|
||||
#define UNBOX(x) (((int)(x)) >> 1)
|
||||
#define BOX(x) ((((int)(x)) << 1) | 0x0001)
|
||||
|
||||
#define BYTES_TO_WORDS(bytes) (((bytes)-1) / sizeof(size_t) + 1)
|
||||
#define WORDS_TO_BYTES(words) ((words) * sizeof(size_t))
|
||||
|
||||
// CAREFUL WITH DOUBLE EVALUATION!
|
||||
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
|
||||
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
|
||||
|
||||
typedef struct {
|
||||
// store tag in the last three bits to understand what structure this is, other bits are filled with
|
||||
// other utility info (i.e., size for array, number of fields for s-expression)
|
||||
int data_header;
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
size_t id;
|
||||
#endif
|
||||
|
||||
// last bit is used as MARK-BIT, the rest are used to store address where object should move
|
||||
// last bit can be used because due to alignment we can assume that last two bits are always 0's
|
||||
size_t forward_address;
|
||||
char contents[0];
|
||||
} data;
|
||||
|
||||
typedef struct {
|
||||
// store tag in the last three bits to understand what structure this is, other bits are filled with
|
||||
// other utility info (i.e., size for array, number of fields for s-expression)
|
||||
int data_header;
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
size_t id;
|
||||
#endif
|
||||
|
||||
// last bit is used as MARK-BIT, the rest are used to store address where object should move
|
||||
// last bit can be used because due to alignment we can assume that last two bits are always 0's
|
||||
size_t forward_address;
|
||||
int tag;
|
||||
int contents[0];
|
||||
} sexp;
|
||||
|
||||
#endif
|
||||
275
runtime/test_main.c
Normal file
275
runtime/test_main.c
Normal file
|
|
@ -0,0 +1,275 @@
|
|||
#include "gc.h"
|
||||
#include "runtime_common.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifdef DEBUG_VERSION
|
||||
|
||||
// function from runtime that maps string to int value
|
||||
extern int LtagHash (char *s);
|
||||
|
||||
extern void *Bsexp (int n, ...);
|
||||
extern void *Barray (int bn, ...);
|
||||
extern void *Bstring (void *);
|
||||
extern void *Bclosure (int bn, void *entry, ...);
|
||||
|
||||
extern size_t __gc_stack_top, __gc_stack_bottom;
|
||||
|
||||
void test_correct_structure_sizes (void) {
|
||||
// something like induction base
|
||||
assert((array_size(0) == get_header_size(ARRAY)));
|
||||
assert((string_size(0) == get_header_size(STRING) + 1)); // +1 is because of '\0'
|
||||
assert((sexp_size(0) == get_header_size(SEXP) + MEMBER_SIZE));
|
||||
assert((closure_size(0) == get_header_size(CLOSURE)));
|
||||
|
||||
// just check correctness for some small sizes
|
||||
for (int k = 1; k < 20; ++k) {
|
||||
assert((array_size(k) == get_header_size(ARRAY) + MEMBER_SIZE * k));
|
||||
assert((string_size(k) == get_header_size(STRING) + k + 1));
|
||||
assert((sexp_size(k) == get_header_size(SEXP) + MEMBER_SIZE * (k + 1)));
|
||||
assert((closure_size(k) == get_header_size(CLOSURE) + MEMBER_SIZE * k));
|
||||
}
|
||||
}
|
||||
|
||||
void no_gc_tests (void) { test_correct_structure_sizes(); }
|
||||
|
||||
// unfortunately there is no generic function pointer that can hold pointer to function with arbitrary signature
|
||||
extern size_t call_runtime_function (void *virt_stack_pointer, void *function_pointer,
|
||||
size_t num_args, ...);
|
||||
|
||||
# include "virt_stack.h"
|
||||
|
||||
virt_stack *init_test () {
|
||||
__init();
|
||||
virt_stack *st = vstack_create();
|
||||
vstack_init(st);
|
||||
__gc_stack_bottom = (size_t)vstack_top(st);
|
||||
return st;
|
||||
}
|
||||
|
||||
void cleanup_test (virt_stack *st) {
|
||||
vstack_destruct(st);
|
||||
__shutdown();
|
||||
}
|
||||
|
||||
void force_gc_cycle (virt_stack *st) {
|
||||
__gc_stack_top = (size_t)vstack_top(st) - 4;
|
||||
gc_alloc(0);
|
||||
__gc_stack_top = 0;
|
||||
}
|
||||
|
||||
void test_simple_string_alloc (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
for (int i = 0; i < 5; ++i) { vstack_push(st, BOX(i)); }
|
||||
|
||||
vstack_push(st, call_runtime_function(vstack_top(st) - 4, Bstring, 1, "abc"));
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 1));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_simple_array_alloc (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
// allocate array [ BOX(1) ] and push it onto the stack
|
||||
vstack_push(st, call_runtime_function(vstack_top(st) - 4, Barray, 2, BOX(1), BOX(1)));
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 1));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_simple_sexp_alloc (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
// allocate sexp with one boxed field and push it onto the stack
|
||||
// calling runtime function Bsexp(BOX(2), BOX(1), LtagHash("test"))
|
||||
vstack_push(
|
||||
st, call_runtime_function(vstack_top(st) - 4, Bsexp, 3, BOX(2), BOX(1), LtagHash("test")));
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 1));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_simple_closure_alloc (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
// allocate closure with boxed captured value and push it onto the stack
|
||||
vstack_push(st, call_runtime_function(vstack_top(st) - 4, Bclosure, 3, BOX(1), NULL, BOX(1)));
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 1));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_single_object_allocation_with_collection_virtual_stack (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
vstack_push(st,
|
||||
call_runtime_function(
|
||||
vstack_top(st) - 4, Bstring, 1, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"));
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 1));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_garbage_is_reclaimed (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
call_runtime_function(vstack_top(st) - 4, Bstring, 1, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
|
||||
|
||||
force_gc_cycle(st);
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 0));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_alive_are_not_reclaimed (void) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
vstack_push(st,
|
||||
call_runtime_function(
|
||||
vstack_top(st) - 4, Bstring, 1, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"));
|
||||
|
||||
force_gc_cycle(st);
|
||||
|
||||
const int N = 10;
|
||||
int ids[N];
|
||||
size_t alive = objects_snapshot(ids, N);
|
||||
assert((alive == 1));
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
void test_small_tree_compaction (void) {
|
||||
virt_stack *st = init_test();
|
||||
// this one will increase heap size
|
||||
call_runtime_function(vstack_top(st) - 4, Bstring, 1, "aaaaaaaaaaaaaaaaaaaaaa");
|
||||
|
||||
vstack_push(st, call_runtime_function(vstack_top(st) - 4, Bstring, 1, "left-s"));
|
||||
vstack_push(st, call_runtime_function(vstack_top(st) - 4, Bstring, 1, "right-s"));
|
||||
vstack_push(st,
|
||||
call_runtime_function(vstack_top(st) - 4,
|
||||
Bsexp,
|
||||
4,
|
||||
BOX(3),
|
||||
vstack_kth_from_start(st, 0),
|
||||
vstack_kth_from_start(st, 1),
|
||||
LtagHash("tree")));
|
||||
force_gc_cycle(st);
|
||||
const int SZ = 10;
|
||||
int ids[SZ];
|
||||
size_t alive = objects_snapshot(ids, SZ);
|
||||
assert((alive == 3));
|
||||
|
||||
// check that order is indeed preserved
|
||||
for (int i = 0; i < alive - 1; ++i) { assert((ids[i] < ids[i + 1])); }
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
extern size_t cur_id;
|
||||
|
||||
size_t generate_random_obj_forest (virt_stack *st, int cnt, int seed) {
|
||||
srand(seed);
|
||||
int cur_sz = 0;
|
||||
size_t alive = 0;
|
||||
while (cnt) {
|
||||
--cnt;
|
||||
if (cur_sz == 0) {
|
||||
vstack_push(st, BOX(1));
|
||||
++cur_sz;
|
||||
continue;
|
||||
}
|
||||
|
||||
size_t pos[2] = {rand() % vstack_size(st), rand() % vstack_size(st)};
|
||||
size_t field[2];
|
||||
for (int t = 0; t < 2; ++t) { field[t] = vstack_kth_from_start(st, pos[t]); }
|
||||
size_t obj;
|
||||
|
||||
if (rand() % 2) {
|
||||
obj = call_runtime_function(
|
||||
vstack_top(st) - 4, Bsexp, 4, BOX(3), field[0], field[1], LtagHash("test"));
|
||||
} else {
|
||||
obj = BOX(1);
|
||||
}
|
||||
// whether object is stored on stack
|
||||
if (rand() % 2 != 0) {
|
||||
vstack_push(st, obj);
|
||||
if ((obj & 1) == 0) { ++alive; }
|
||||
}
|
||||
++cur_sz;
|
||||
}
|
||||
force_gc_cycle(st);
|
||||
return alive;
|
||||
}
|
||||
|
||||
void run_stress_test_random_obj_forest (int seed) {
|
||||
virt_stack *st = init_test();
|
||||
|
||||
const int SZ = 100000;
|
||||
|
||||
size_t expectedAlive = generate_random_obj_forest(st, SZ, seed);
|
||||
|
||||
int ids[SZ];
|
||||
size_t alive = objects_snapshot(ids, SZ);
|
||||
assert(alive == expectedAlive);
|
||||
|
||||
// check that order is indeed preserved
|
||||
for (int i = 0; i < alive - 1; ++i) { assert((ids[i] < ids[i + 1])); }
|
||||
|
||||
cleanup_test(st);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#include <time.h>
|
||||
|
||||
int main (int argc, char **argv) {
|
||||
#ifdef DEBUG_VERSION
|
||||
no_gc_tests();
|
||||
|
||||
test_simple_string_alloc();
|
||||
test_simple_array_alloc();
|
||||
test_simple_sexp_alloc();
|
||||
test_simple_closure_alloc();
|
||||
test_single_object_allocation_with_collection_virtual_stack();
|
||||
test_garbage_is_reclaimed();
|
||||
test_alive_are_not_reclaimed();
|
||||
test_small_tree_compaction();
|
||||
|
||||
time_t start, end;
|
||||
double diff;
|
||||
time(&start);
|
||||
// stress test
|
||||
for (int s = 0; s < 100; ++s) { run_stress_test_random_obj_forest(s); }
|
||||
time(&end);
|
||||
diff = difftime(end, start);
|
||||
printf("Stress tests took %.2lf seconds to complete\n", diff);
|
||||
#endif
|
||||
}
|
||||
40
runtime/test_util.s
Normal file
40
runtime/test_util.s
Normal file
|
|
@ -0,0 +1,40 @@
|
|||
# this is equivalent C-signature for this function
|
||||
# size_t call_runtime_function(void *stack, void *func_ptr, int num_args, ...)
|
||||
|
||||
.globl call_runtime_function
|
||||
.type call_runtime_function, @function
|
||||
call_runtime_function:
|
||||
pushl %ebp
|
||||
movl %esp, %ebp
|
||||
|
||||
# store old stack pointer
|
||||
movl %esp, %edi
|
||||
|
||||
# move esp to point to the virtual stack
|
||||
movl 8(%ebp), %esp
|
||||
|
||||
# push arguments onto the stack
|
||||
movl 16(%ebp), %ecx # num_args
|
||||
test %ecx, %ecx
|
||||
jz f_call # in case function doesn't have any parameters
|
||||
|
||||
leal 16(%ebp), %eax # pointer to value BEFORE first argument
|
||||
leal (%eax,%ecx,4), %edx # pointer to last argument (right-to-left)
|
||||
|
||||
push_args_loop:
|
||||
pushl (%edx)
|
||||
subl $4, %edx
|
||||
subl $1, %ecx
|
||||
jnz push_args_loop
|
||||
|
||||
# call the function
|
||||
f_call:
|
||||
movl 12(%ebp), %eax
|
||||
call *%eax
|
||||
|
||||
# restore the old stack pointer
|
||||
movl %edi, %esp
|
||||
|
||||
# pop the old frame pointer and return
|
||||
popl %ebp # epilogue
|
||||
ret
|
||||
34
runtime/virt_stack.c
Normal file
34
runtime/virt_stack.c
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
#include "virt_stack.h"
|
||||
|
||||
#include <malloc.h>
|
||||
|
||||
virt_stack *vstack_create () { return malloc(sizeof(virt_stack)); }
|
||||
|
||||
void vstack_destruct (virt_stack *st) { free(st); }
|
||||
|
||||
void vstack_init (virt_stack *st) {
|
||||
st->cur = RUNTIME_VSTACK_SIZE;
|
||||
st->buf[st->cur] = 0;
|
||||
}
|
||||
|
||||
void vstack_push (virt_stack *st, size_t value) {
|
||||
if (st->cur == 0) { assert(0); }
|
||||
--st->cur;
|
||||
st->buf[st->cur] = value;
|
||||
}
|
||||
|
||||
size_t vstack_pop (virt_stack *st) {
|
||||
if (st->cur == RUNTIME_VSTACK_SIZE) { assert(0); }
|
||||
size_t value = st->buf[st->cur];
|
||||
++st->cur;
|
||||
return value;
|
||||
}
|
||||
|
||||
void *vstack_top (virt_stack *st) { return st->buf + st->cur; }
|
||||
|
||||
size_t vstack_size (virt_stack *st) { return RUNTIME_VSTACK_SIZE - st->cur; }
|
||||
|
||||
size_t vstack_kth_from_start (virt_stack *st, size_t k) {
|
||||
assert(vstack_size(st) > k);
|
||||
return st->buf[RUNTIME_VSTACK_SIZE - 1 - k];
|
||||
}
|
||||
33
runtime/virt_stack.h
Normal file
33
runtime/virt_stack.h
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
//
|
||||
// Created by egor on 24.04.23.
|
||||
//
|
||||
|
||||
#ifndef LAMA_RUNTIME_VIRT_STACK_H
|
||||
#define LAMA_RUNTIME_VIRT_STACK_H
|
||||
#define RUNTIME_VSTACK_SIZE 100000
|
||||
|
||||
#include <assert.h>
|
||||
#include <stddef.h>
|
||||
|
||||
struct {
|
||||
size_t buf[RUNTIME_VSTACK_SIZE + 1];
|
||||
size_t cur;
|
||||
} typedef virt_stack;
|
||||
|
||||
virt_stack *vstack_create ();
|
||||
|
||||
void vstack_destruct (virt_stack *st);
|
||||
|
||||
void vstack_init (virt_stack *st);
|
||||
|
||||
void vstack_push (virt_stack *st, size_t value);
|
||||
|
||||
size_t vstack_pop (virt_stack *st);
|
||||
|
||||
void *vstack_top (virt_stack *st);
|
||||
|
||||
size_t vstack_size (virt_stack *st);
|
||||
|
||||
size_t vstack_kth_from_start (virt_stack *st, size_t k);
|
||||
|
||||
#endif //LAMA_RUNTIME_VIRT_STACK_H
|
||||
1
src/.ocamlformat
Normal file
1
src/.ocamlformat
Normal file
|
|
@ -0,0 +1 @@
|
|||
profile=default
|
||||
281
src/Driver.ml
281
src/Driver.ml
|
|
@ -2,184 +2,223 @@ exception Commandline_error of string
|
|||
|
||||
class options args =
|
||||
let n = Array.length args in
|
||||
let dump_ast = 0b1 in
|
||||
let dump_sm = 0b010 in
|
||||
let dump_ast = 0b1 in
|
||||
let dump_sm = 0b010 in
|
||||
let dump_source = 0b100 in
|
||||
(* Kakadu: binary masks are cool for C code, but for OCaml I don't see any reason to save memory like this *)
|
||||
let help_string =
|
||||
"Lama compiler. (C) JetBrains Reserach, 2017-2020.\n" ^
|
||||
"Usage: lamac <options> <input file>\n\n" ^
|
||||
"When no options specified, builds the source file into executable.\n" ^
|
||||
"Options:\n" ^
|
||||
" -c --- compile into object file\n" ^
|
||||
" -o <file> --- write executable into file <file>\n" ^
|
||||
" -I <path> --- add <path> into unit search path list\n" ^
|
||||
" -i --- interpret on a source-level interpreter\n" ^
|
||||
" -s --- compile into stack machine code and interpret on the stack machine initerpreter\n" ^
|
||||
" -dp --- dump AST (the output will be written into .ast file)\n" ^
|
||||
" -dsrc --- dump pretty-printed source code\n" ^
|
||||
" -ds --- dump stack machine code (the output will be written into .sm file; has no\n" ^
|
||||
" effect if -i option is specfied)\n" ^
|
||||
" -b --- compile to a stack machine bytecode\n" ^
|
||||
" -v --- show version\n" ^
|
||||
" -h --- show this help\n"
|
||||
"Lama compiler. (C) JetBrains Reserach, 2017-2020.\n"
|
||||
^ "Usage: lamac <options> <input file>\n\n"
|
||||
^ "When no options specified, builds the source file into executable.\n"
|
||||
^ "Options:\n" ^ " -c --- compile into object file\n"
|
||||
^ " -o <file> --- write executable into file <file>\n"
|
||||
^ " -I <path> --- add <path> into unit search path list\n"
|
||||
^ " -i --- interpret on a source-level interpreter\n"
|
||||
^ " -s --- compile into stack machine code and interpret on the \
|
||||
stack machine initerpreter\n"
|
||||
^ " -dp --- dump AST (the output will be written into .ast file)\n"
|
||||
^ " -dsrc --- dump pretty-printed source code\n"
|
||||
^ " -ds --- dump stack machine code (the output will be written \
|
||||
into .sm file; has no\n"
|
||||
^ " effect if -i option is specfied)\n"
|
||||
^ " -b --- compile to a stack machine bytecode\n"
|
||||
^ " -v --- show version\n" ^ " -h --- show this help\n"
|
||||
in
|
||||
object (self)
|
||||
val version = ref false
|
||||
val help = ref false
|
||||
val i = ref 1
|
||||
val infile = ref (None : string option)
|
||||
val help = ref false
|
||||
val i = ref 1
|
||||
val infile = ref (None : string option)
|
||||
val outfile = ref (None : string option)
|
||||
val paths = ref [X86.get_std_path ()]
|
||||
val mode = ref (`Default : [`Default | `Eval | `SM | `Compile | `BC])
|
||||
val curdir = Unix.getcwd ()
|
||||
val debug = ref false
|
||||
val paths = ref [ X86.get_std_path () ]
|
||||
val mode = ref (`Default : [ `Default | `Eval | `SM | `Compile | `BC ])
|
||||
val curdir = Unix.getcwd ()
|
||||
val debug = ref false
|
||||
|
||||
(* Workaround until Ostap starts to memoize properly *)
|
||||
val const = ref false
|
||||
val const = ref false
|
||||
|
||||
(* end of the workaround *)
|
||||
val dump = ref 0
|
||||
val dump = ref 0
|
||||
|
||||
initializer
|
||||
let rec loop () =
|
||||
match self#peek with
|
||||
| Some opt ->
|
||||
(match opt with
|
||||
(* Workaround until Ostap starts to memoize properly *)
|
||||
| "-w" -> self#set_workaround
|
||||
(* end of the workaround *)
|
||||
| "-c" -> self#set_mode `Compile
|
||||
| "-o" -> (match self#peek with None -> raise (Commandline_error "File name expected after '-o' specifier") | Some fname -> self#set_outfile fname)
|
||||
| "-I" -> (match self#peek with None -> raise (Commandline_error "Path expected after '-I' specifier") | Some path -> self#add_include_path path)
|
||||
| "-s" -> self#set_mode `SM
|
||||
| "-b" -> self#set_mode `BC
|
||||
| "-i" -> self#set_mode `Eval
|
||||
| "-ds" -> self#set_dump dump_sm
|
||||
| "-dsrc" -> self#set_dump dump_source
|
||||
| "-dp" -> self#set_dump dump_ast
|
||||
| "-h" -> self#set_help
|
||||
| "-v" -> self#set_version
|
||||
| "-g" -> self#set_debug
|
||||
| _ ->
|
||||
if opt.[0] = '-'
|
||||
then raise (Commandline_error (Printf.sprintf "Invalid command line specifier ('%s')" opt))
|
||||
else self#set_infile opt
|
||||
);
|
||||
loop ()
|
||||
| None -> ()
|
||||
in loop ()
|
||||
let rec loop () =
|
||||
match self#peek with
|
||||
| Some opt ->
|
||||
(match opt with
|
||||
(* Workaround until Ostap starts to memoize properly *)
|
||||
| "-w" -> self#set_workaround
|
||||
(* end of the workaround *)
|
||||
| "-c" -> self#set_mode `Compile
|
||||
| "-o" -> (
|
||||
match self#peek with
|
||||
| None ->
|
||||
raise
|
||||
(Commandline_error "File name expected after '-o' specifier")
|
||||
| Some fname -> self#set_outfile fname)
|
||||
| "-I" -> (
|
||||
match self#peek with
|
||||
| None ->
|
||||
raise (Commandline_error "Path expected after '-I' specifier")
|
||||
| Some path -> self#add_include_path path)
|
||||
| "-s" -> self#set_mode `SM
|
||||
| "-b" -> self#set_mode `BC
|
||||
| "-i" -> self#set_mode `Eval
|
||||
| "-ds" -> self#set_dump dump_sm
|
||||
| "-dsrc" -> self#set_dump dump_source
|
||||
| "-dp" -> self#set_dump dump_ast
|
||||
| "-h" -> self#set_help
|
||||
| "-v" -> self#set_version
|
||||
| "-g" -> self#set_debug
|
||||
| _ ->
|
||||
if opt.[0] = '-' then
|
||||
raise
|
||||
(Commandline_error
|
||||
(Printf.sprintf "Invalid command line specifier ('%s')" opt))
|
||||
else self#set_infile opt);
|
||||
loop ()
|
||||
| None -> ()
|
||||
in
|
||||
loop ()
|
||||
|
||||
(* Workaround until Ostap starts to memoize properly *)
|
||||
method is_workaround = !const
|
||||
method private set_workaround =
|
||||
const := true
|
||||
method private set_workaround = const := true
|
||||
|
||||
(* end of the workaround *)
|
||||
method private set_help = help := true
|
||||
method private set_help = help := true
|
||||
method private set_version = version := true
|
||||
method private set_dump mask =
|
||||
dump := !dump lor mask
|
||||
method private set_dump mask = dump := !dump lor mask
|
||||
|
||||
method private set_infile name =
|
||||
match !infile with
|
||||
| None -> infile := Some name
|
||||
| Some name' -> raise (Commandline_error (Printf.sprintf "Input file ('%s') already specified" name'))
|
||||
| None -> infile := Some name
|
||||
| Some name' ->
|
||||
raise
|
||||
(Commandline_error
|
||||
(Printf.sprintf "Input file ('%s') already specified" name'))
|
||||
|
||||
method private set_outfile name =
|
||||
match !outfile with
|
||||
| None -> outfile := Some name
|
||||
| Some name' -> raise (Commandline_error (Printf.sprintf "Output file ('%s') already specified" name'))
|
||||
method private add_include_path path =
|
||||
paths := path :: !paths
|
||||
| None -> outfile := Some name
|
||||
| Some name' ->
|
||||
raise
|
||||
(Commandline_error
|
||||
(Printf.sprintf "Output file ('%s') already specified" name'))
|
||||
|
||||
method private add_include_path path = paths := path :: !paths
|
||||
|
||||
method private set_mode s =
|
||||
match !mode with
|
||||
| `Default -> mode := s
|
||||
| _ -> raise (Commandline_error "Extra compilation mode specifier")
|
||||
|
||||
method private peek =
|
||||
let j = !i in
|
||||
if j < n
|
||||
then (incr i; Some (args.(j)))
|
||||
if j < n then (
|
||||
incr i;
|
||||
Some args.(j))
|
||||
else None
|
||||
|
||||
method get_mode = !mode
|
||||
|
||||
method get_output_option =
|
||||
match !outfile with
|
||||
| None -> Printf.sprintf "-o %s" self#basename
|
||||
| None -> Printf.sprintf "-o %s" self#basename
|
||||
| Some name -> Printf.sprintf "-o %s" name
|
||||
|
||||
method get_absolute_infile =
|
||||
let f = self#get_infile in
|
||||
if Filename.is_relative f then Filename.concat curdir f else f
|
||||
|
||||
method get_infile =
|
||||
match !infile with
|
||||
| None -> raise (Commandline_error "Input file not specified")
|
||||
| None -> raise (Commandline_error "Input file not specified")
|
||||
| Some name -> name
|
||||
|
||||
method get_help = !help
|
||||
method get_include_paths = !paths
|
||||
method basename = Filename.chop_suffix (Filename.basename self#get_infile) ".lama"
|
||||
|
||||
method basename =
|
||||
Filename.chop_suffix (Filename.basename self#get_infile) ".lama"
|
||||
|
||||
method topname =
|
||||
match !mode with
|
||||
| `Compile -> "init" ^ self#basename
|
||||
| _ -> "main"
|
||||
match !mode with `Compile -> "init" ^ self#basename | _ -> "main"
|
||||
|
||||
method dump_file ext contents =
|
||||
let name = self#basename in
|
||||
let outf = open_out (Printf.sprintf "%s.%s" name ext) in
|
||||
Printf.fprintf outf "%s" contents;
|
||||
close_out outf
|
||||
|
||||
method dump_AST ast =
|
||||
if (!dump land dump_ast) > 0
|
||||
then (
|
||||
if !dump land dump_ast > 0 then (
|
||||
let buf = Buffer.create 1024 in
|
||||
Buffer.add_string buf "<html>";
|
||||
Buffer.add_string buf (Printf.sprintf "<title> %s </title>" self#get_infile);
|
||||
Buffer.add_string buf
|
||||
(Printf.sprintf "<title> %s </title>" self#get_infile);
|
||||
Buffer.add_string buf "<body><li>";
|
||||
GT.html(Language.Expr.t) ast buf;
|
||||
GT.html Language.Expr.t ast buf;
|
||||
Buffer.add_string buf "</li></body>";
|
||||
Buffer.add_string buf "</html>";
|
||||
self#dump_file "html" (Buffer.contents buf)
|
||||
)
|
||||
method dump_source (ast: Language.Expr.t) =
|
||||
if (!dump land dump_source) > 0
|
||||
then Pprinter.pp Format.std_formatter ast;
|
||||
method dump_SM sm =
|
||||
if (!dump land dump_sm) > 0
|
||||
then self#dump_file "sm" (SM.show_prg sm)
|
||||
self#dump_file "html" (Buffer.contents buf))
|
||||
|
||||
method dump_source (ast : Language.Expr.t) =
|
||||
if !dump land dump_source > 0 then Pprinter.pp Format.std_formatter ast
|
||||
|
||||
method dump_SM sm =
|
||||
if !dump land dump_sm > 0 then self#dump_file "sm" (SM.show_prg sm)
|
||||
else ()
|
||||
|
||||
method greet =
|
||||
(match !outfile with
|
||||
| None -> ()
|
||||
| Some _ -> (match !mode with `Default -> () | _ -> Printf.printf "Output file option ignored in this mode.\n")
|
||||
);
|
||||
| None -> ()
|
||||
| Some _ -> (
|
||||
match !mode with
|
||||
| `Default -> ()
|
||||
| _ -> Printf.printf "Output file option ignored in this mode.\n"));
|
||||
if !version then Printf.printf "%s\n" Version.version;
|
||||
if !help then Printf.printf "%s" help_string
|
||||
method get_debug =
|
||||
if !debug then "" else "-g"
|
||||
method set_debug =
|
||||
debug := true
|
||||
if !help then Printf.printf "%s" help_string
|
||||
|
||||
method get_debug = if !debug then "" else "-g"
|
||||
method set_debug = debug := true
|
||||
end
|
||||
|
||||
let main =
|
||||
let[@ocaml.warning "-32"] main =
|
||||
try
|
||||
let cmd = new options Sys.argv in
|
||||
cmd#greet;
|
||||
match (try Language.run_parser cmd with Language.Semantic_error msg -> `Fail msg) with
|
||||
| `Ok prog ->
|
||||
cmd#dump_AST (snd prog);
|
||||
cmd#dump_source (snd prog);
|
||||
(match cmd#get_mode with
|
||||
| `Default | `Compile ->
|
||||
ignore @@ X86.build cmd prog
|
||||
| `BC ->
|
||||
SM.ByteCode.compile cmd (SM.compile cmd prog)
|
||||
match
|
||||
try Language.run_parser cmd
|
||||
with Language.Semantic_error msg -> `Fail msg
|
||||
with
|
||||
| `Ok prog -> (
|
||||
cmd#dump_AST (snd prog);
|
||||
cmd#dump_source (snd prog);
|
||||
match cmd#get_mode with
|
||||
| `Default | `Compile -> ignore @@ X86.build cmd prog
|
||||
| `BC -> SM.ByteCode.compile cmd (SM.compile cmd prog)
|
||||
| _ ->
|
||||
let rec read acc =
|
||||
try
|
||||
let r = read_int () in
|
||||
Printf.printf "> ";
|
||||
read (acc @ [r])
|
||||
with End_of_file -> acc
|
||||
in
|
||||
let input = read [] in
|
||||
let output =
|
||||
if cmd#get_mode = `Eval
|
||||
then Language.eval prog input
|
||||
else SM.run (SM.compile cmd prog) input
|
||||
in
|
||||
List.iter (fun i -> Printf.printf "%d\n" i) output
|
||||
)
|
||||
| `Fail er -> Printf.eprintf "Error: %s\n" er; exit 255
|
||||
let rec read acc =
|
||||
try
|
||||
let r = read_int () in
|
||||
Printf.printf "> ";
|
||||
read (acc @ [ r ])
|
||||
with End_of_file -> acc
|
||||
in
|
||||
let input = read [] in
|
||||
let output =
|
||||
if cmd#get_mode = `Eval then Language.eval prog input
|
||||
else SM.run (SM.compile cmd prog) input
|
||||
in
|
||||
List.iter (fun i -> Printf.printf "%d\n" i) output)
|
||||
| `Fail er ->
|
||||
Printf.eprintf "Error: %s\n" er;
|
||||
exit 255
|
||||
with
|
||||
| Language.Semantic_error msg -> Printf.printf "Error: %s\n" msg; exit 255
|
||||
| Commandline_error msg -> Printf.printf "%s\n" msg; exit 255
|
||||
| Language.Semantic_error msg ->
|
||||
Printf.printf "Error: %s\n" msg;
|
||||
exit 255
|
||||
| Commandline_error msg ->
|
||||
Printf.printf "%s\n" msg;
|
||||
exit 255
|
||||
|
|
|
|||
177
src/Language.ml
177
src/Language.ml
|
|
@ -3,6 +3,8 @@
|
|||
*)
|
||||
module OrigList = List
|
||||
|
||||
[@@@ocaml.warning "-7-8-13-15-20-26-27-32"]
|
||||
|
||||
open GT
|
||||
|
||||
(* Opening a library for combinator-based syntax analysis *)
|
||||
|
|
@ -55,7 +57,7 @@ module Loc =
|
|||
|
||||
let report_error ?(loc=None) str =
|
||||
raise (Semantic_error (str ^ match loc with None -> "" | Some (l, c) -> Printf.sprintf " at (%d, %d)" l c));;
|
||||
|
||||
|
||||
@type k = Unmut | Mut | FVal with show, html, foldl
|
||||
|
||||
(* Values *)
|
||||
|
|
@ -85,7 +87,7 @@ module Value =
|
|||
with show, html, foldl
|
||||
|
||||
let is_int = function Int _ -> true | _ -> false
|
||||
|
||||
|
||||
let to_int = function
|
||||
| Int n -> n
|
||||
| x -> failwith (Printf.sprintf "int value expected (%s)\n" (show(t) (fun _ -> "<not supported>") (fun _ -> "<not supported>") x))
|
||||
|
|
@ -114,6 +116,7 @@ module Value =
|
|||
match x with
|
||||
| Sexp (_, a) | Array a -> ignore (update_array a i v)
|
||||
| String a -> ignore (update_string a i (Char.chr @@ to_int v))
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
|
||||
let string_val v =
|
||||
let buf = Buffer.create 128 in
|
||||
|
|
@ -121,8 +124,7 @@ module Value =
|
|||
let rec inner = function
|
||||
| Int n -> append (string_of_int n)
|
||||
| String s -> append "\""; append @@ Bytes.to_string s; append "\""
|
||||
| Array a -> let n = Array.length a in
|
||||
append "["; Array.iteri (fun i a -> (if i > 0 then append ", "); inner a) a; append "]"
|
||||
| Array a -> append "["; Array.iteri (fun i a -> (if i > 0 then append ", "); inner a) a; append "]"
|
||||
| Sexp (t, a) -> let n = Array.length a in
|
||||
if t = "cons"
|
||||
then (
|
||||
|
|
@ -131,6 +133,7 @@ module Value =
|
|||
| [||] -> ()
|
||||
| [|x; Int 0|] -> inner x
|
||||
| [|x; Sexp ("cons", a)|] -> inner x; append ", "; inner_list a
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
in inner_list a;
|
||||
append "}"
|
||||
)
|
||||
|
|
@ -139,6 +142,7 @@ module Value =
|
|||
(if n > 0 then (append " ("; Array.iteri (fun i a -> (if i > 0 then append ", "); inner a) a;
|
||||
append ")"))
|
||||
)
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
in
|
||||
inner v;
|
||||
Bytes.of_string @@ Buffer.contents buf
|
||||
|
|
@ -156,24 +160,27 @@ module Builtin =
|
|||
let eval (st, i, o, vs) args = function
|
||||
| "read" -> (match i with z::i' -> (st, i', o, (Value.of_int z)::vs) | _ -> failwith "Unexpected end of input")
|
||||
| "write" -> (st, i, o @ [Value.to_int @@ List.hd args], Value.Empty :: vs)
|
||||
| ".elem" -> let [b; j] = args in
|
||||
(st, i, o, let i = Value.to_int j in
|
||||
(match b with
|
||||
| Value.String s -> Value.of_int @@ Char.code (Bytes.get s i)
|
||||
| Value.Array a -> a.(i)
|
||||
| Value.Sexp (_, a) -> a.(i)
|
||||
) :: vs
|
||||
| ".elem" -> (match args with
|
||||
| [b; j] -> (st, i, o, let i = Value.to_int j in
|
||||
(match b with
|
||||
| Value.String s -> Value.of_int @@ Char.code (Bytes.get s i)
|
||||
| Value.Array a -> a.(i)
|
||||
| Value.Sexp (_, a) -> a.(i)
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
) :: vs
|
||||
)
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
)
|
||||
| "length" -> (st, i, o, (Value.of_int (match List.hd args with Value.Sexp (_, a) | Value.Array a -> Array.length a | Value.String s -> Bytes.length s))::vs)
|
||||
| "length" -> (st, i, o, (Value.of_int (match List.hd args with Value.Sexp (_, a) | Value.Array a -> Array.length a | Value.String s -> Bytes.length s | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)))::vs)
|
||||
| ".array" -> (st, i, o, (Value.of_array @@ Array.of_list args)::vs)
|
||||
| "string" -> let [a] = args in (st, i, o, (Value.of_string @@ Value.string_val a)::vs)
|
||||
|
||||
| "string" -> (match args with | [a] -> (st, i, o, (Value.of_string @@ Value.string_val a)::vs) | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
end
|
||||
|
||||
(* States *)
|
||||
module State =
|
||||
struct
|
||||
|
||||
|
||||
(* State: global state, local state, scope variables *)
|
||||
@type 'a t =
|
||||
| I
|
||||
|
|
@ -273,7 +280,7 @@ module State =
|
|||
| _ -> L (xs, s, st)
|
||||
|
||||
(* Drop a local scope *)
|
||||
let drop = function L (_, _, e) -> e | G _ -> I
|
||||
let drop = function L (_, _, e) -> e | G _ -> I | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
|
||||
(* Observe a variable in a state and print it to stderr *)
|
||||
let observe st x =
|
||||
|
|
@ -440,19 +447,18 @@ module Expr =
|
|||
|
||||
let seq x = function Skip -> x | y -> Seq (x, y)
|
||||
|
||||
let schedule_list h::tl =
|
||||
List.fold_left seq h tl
|
||||
let schedule_list = function h::tl -> List.fold_left seq h tl | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
|
||||
let rec take = function
|
||||
| 0 -> fun rest -> [], rest
|
||||
| n -> fun h::tl -> let tl', rest = take (n-1) tl in h :: tl', rest
|
||||
| n -> function h::tl -> let tl', rest = take (n-1) tl in h :: tl', rest | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
|
||||
let rec eval ((st, i, o, vs) as conf) k expr =
|
||||
let print_values vs =
|
||||
(* let print_values vs =
|
||||
Printf.eprintf "Values:\n%!";
|
||||
List.iter (fun v -> Printf.eprintf "%s\n%!" @@ show(Value.t) (fun _ -> "<expr>") (fun _ -> "<state>") v) vs;
|
||||
Printf.eprintf "End Values\n%!"
|
||||
in
|
||||
in *)
|
||||
match expr with
|
||||
| Lambda (args, body) ->
|
||||
eval (st, i, o, Value.Closure (args, body, [|st|]) :: vs) Skip k
|
||||
|
|
@ -500,73 +506,78 @@ module Expr =
|
|||
| Sexp (t, xs) ->
|
||||
eval conf k (schedule_list (xs @ [Intrinsic (fun (st, i, o, vs) -> let es, vs' = take (List.length xs) vs in (st, i, o, Value.Sexp (t, Array.of_list (List.rev es)) :: vs'))]))
|
||||
| Binop (op, x, y) ->
|
||||
eval conf k (schedule_list [x; y; Intrinsic (fun (st, i, o, y::x::vs) -> (st, i, o, (Value.of_int @@ to_func op (Value.to_int x) (Value.to_int y)) :: vs))])
|
||||
eval conf k (schedule_list [x; y; Intrinsic (function (st, i, o, y::x::vs) -> (st, i, o, (Value.of_int @@ to_func op (Value.to_int x) (Value.to_int y)) :: vs) | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))])
|
||||
| Elem (b, i) ->
|
||||
eval conf k (schedule_list [b; i; Intrinsic (fun (st, i, o, j::b::vs) -> Builtin.eval (st, i, o, vs) [b; j] ".elem")])
|
||||
eval conf k (schedule_list [b; i; Intrinsic (function (st, i, o, j::b::vs) -> Builtin.eval (st, i, o, vs) [b; j] ".elem" | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))])
|
||||
| ElemRef (b, i) ->
|
||||
eval conf k (schedule_list [b; i; Intrinsic (fun (st, i, o, j::b::vs) -> (st, i, o, (Value.Elem (b, Value.to_int j))::vs))])
|
||||
eval conf k (schedule_list [b; i; Intrinsic (function (st, i, o, j::b::vs) -> (st, i, o, (Value.Elem (b, Value.to_int j))::vs) | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))])
|
||||
| Call (f, args) ->
|
||||
eval conf k (schedule_list (f :: args @ [Intrinsic (fun (st, i, o, vs) ->
|
||||
let es, vs' = take (List.length args + 1) vs in
|
||||
let f :: es = List.rev es in
|
||||
(match f with
|
||||
| Value.Builtin name ->
|
||||
Builtin.eval (st, i, o, vs') es name
|
||||
| Value.Closure (args, body, closure) ->
|
||||
let st' = State.push (State.leave st closure.(0)) (State.from_list @@ List.combine args es) (List.map (fun x -> x, Mut) args) in
|
||||
let st'', i', o', vs'' = eval (st', i, o, []) Skip body in
|
||||
closure.(0) <- st'';
|
||||
(State.leave st'' st, i', o', match vs'' with [v] -> v::vs' | _ -> Value.Empty :: vs')
|
||||
| _ -> report_error (Printf.sprintf "callee did not evaluate to a function: \"%s\"" (show(Value.t) (fun _ -> "<expr>") (fun _ -> "<state>") f))
|
||||
))]))
|
||||
match List.rev es with
|
||||
| f :: es ->
|
||||
(match f with
|
||||
| Value.Builtin name ->
|
||||
Builtin.eval (st, i, o, vs') es name
|
||||
| Value.Closure (args, body, closure) ->
|
||||
let st' = State.push (State.leave st closure.(0)) (State.from_list @@ List.combine args es) (List.map (fun x -> x, Mut) args) in
|
||||
let st'', i', o', vs'' = eval (st', i, o, []) Skip body in
|
||||
closure.(0) <- st'';
|
||||
(State.leave st'' st, i', o', match vs'' with [v] -> v::vs' | _ -> Value.Empty :: vs')
|
||||
| _ -> report_error (Printf.sprintf "callee did not evaluate to a function: \"%s\"" (show(Value.t) (fun _ -> "<expr>") (fun _ -> "<state>") f))
|
||||
)
|
||||
| _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
)]))
|
||||
|
||||
| Leave -> eval (State.drop st, i, o, vs) Skip k
|
||||
| Assign (x, e) ->
|
||||
eval conf k (schedule_list [x; e; Intrinsic (fun (st, i, o, v::x::vs) -> (update st x v, i, o, v::vs))])
|
||||
eval conf k (schedule_list [x; e; Intrinsic (function (st, i, o, v::x::vs) -> (update st x v, i, o, v::vs) | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))])
|
||||
| Seq (s1, s2) ->
|
||||
eval conf (seq s2 k) s1
|
||||
| Skip ->
|
||||
(match k with Skip -> conf | _ -> eval conf Skip k)
|
||||
| If (e, s1, s2) ->
|
||||
eval conf k (schedule_list [e; Control (fun (st, i, o, e::vs) -> (if Value.to_int e <> 0 then s1 else s2), (st, i, o, vs))])
|
||||
eval conf k (schedule_list [e; Control (function (st, i, o, e::vs) -> (if Value.to_int e <> 0 then s1 else s2), (st, i, o, vs) | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))])
|
||||
| While (e, s) ->
|
||||
eval conf k (schedule_list [e; Control (fun (st, i, o, e::vs) -> (if Value.to_int e <> 0 then seq s expr else Skip), (st, i, o, vs))])
|
||||
eval conf k (schedule_list [e; Control (function (st, i, o, e::vs) -> (if Value.to_int e <> 0 then seq s expr else Skip), (st, i, o, vs) | _ -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__))])
|
||||
| DoWhile (s, e) ->
|
||||
eval conf (seq (While (e, s)) k) s
|
||||
| Case (e, bs, _, _)->
|
||||
let rec branch ((st, i, o, v::vs) as conf) = function
|
||||
| [] -> failwith (Printf.sprintf "Pattern matching failed: no branch is selected while matching %s\n" (show(Value.t) (fun _ -> "<expr>") (fun _ -> "<state>") v))
|
||||
| (patt, body)::tl ->
|
||||
let rec match_patt patt v st =
|
||||
let update x v = function
|
||||
| None -> None
|
||||
| Some s -> Some (State.bind x v s)
|
||||
in
|
||||
match patt, v with
|
||||
| Pattern.Named (x, p), v -> update x v (match_patt p v st )
|
||||
| Pattern.Wildcard , _ -> st
|
||||
| Pattern.Sexp (t, ps), Value.Sexp (t', vs) when t = t' && List.length ps = Array.length vs -> match_list ps (Array.to_list vs) st
|
||||
| Pattern.Array ps , Value.Array vs when List.length ps = Array.length vs -> match_list ps (Array.to_list vs) st
|
||||
| Pattern.Const n , Value.Int n' when n = n' -> st
|
||||
| Pattern.String s , Value.String s' when s = Bytes.to_string s' -> st
|
||||
| Pattern.Boxed , Value.String _
|
||||
| Pattern.Boxed , Value.Array _
|
||||
| Pattern.UnBoxed , Value.Int _
|
||||
| Pattern.Boxed , Value.Sexp (_, _)
|
||||
| Pattern.StringTag , Value.String _
|
||||
| Pattern.ArrayTag , Value.Array _
|
||||
| Pattern.ClosureTag , Value.Closure _
|
||||
| Pattern.SexpTag , Value.Sexp (_, _) -> st
|
||||
| _ -> None
|
||||
and match_list ps vs s =
|
||||
match ps, vs with
|
||||
| [], [] -> s
|
||||
| p::ps, v::vs -> match_list ps vs (match_patt p v s)
|
||||
| _ -> None
|
||||
in
|
||||
match match_patt patt v (Some State.undefined) with
|
||||
| None -> branch conf tl
|
||||
| Some st' -> eval (State.push st st' (List.map (fun x -> x, Unmut) @@ Pattern.vars patt), i, o, vs) k (Seq (body, Leave))
|
||||
let rec branch =
|
||||
function (_,_,_,[]) -> failwith (Printf.sprintf "Unexpected pattern: %s: %d" __FILE__ __LINE__)
|
||||
| ((st, i, o, v::vs) as conf) -> function
|
||||
| [] -> failwith (Printf.sprintf "Pattern matching failed: no branch is selected while matching %s\n" (show(Value.t) (fun _ -> "<expr>") (fun _ -> "<state>") v))
|
||||
| (patt, body)::tl ->
|
||||
let rec match_patt patt v st =
|
||||
let update x v = function
|
||||
| None -> None
|
||||
| Some s -> Some (State.bind x v s)
|
||||
in
|
||||
match patt, v with
|
||||
| Pattern.Named (x, p), v -> update x v (match_patt p v st )
|
||||
| Pattern.Wildcard , _ -> st
|
||||
| Pattern.Sexp (t, ps), Value.Sexp (t', vs) when t = t' && List.length ps = Array.length vs -> match_list ps (Array.to_list vs) st
|
||||
| Pattern.Array ps , Value.Array vs when List.length ps = Array.length vs -> match_list ps (Array.to_list vs) st
|
||||
| Pattern.Const n , Value.Int n' when n = n' -> st
|
||||
| Pattern.String s , Value.String s' when s = Bytes.to_string s' -> st
|
||||
| Pattern.Boxed , Value.String _
|
||||
| Pattern.Boxed , Value.Array _
|
||||
| Pattern.UnBoxed , Value.Int _
|
||||
| Pattern.Boxed , Value.Sexp (_, _)
|
||||
| Pattern.StringTag , Value.String _
|
||||
| Pattern.ArrayTag , Value.Array _
|
||||
| Pattern.ClosureTag , Value.Closure _
|
||||
| Pattern.SexpTag , Value.Sexp (_, _) -> st
|
||||
| _ -> None
|
||||
and match_list ps vs s =
|
||||
match ps, vs with
|
||||
| [], [] -> s
|
||||
| p::ps, v::vs -> match_list ps vs (match_patt p v s)
|
||||
| _ -> None
|
||||
in
|
||||
match match_patt patt v (Some State.undefined) with
|
||||
| None -> branch conf tl
|
||||
| Some st' -> eval (State.push st st' (List.map (fun x -> x, Unmut) @@ Pattern.vars patt), i, o, vs) k (Seq (body, Leave))
|
||||
in
|
||||
eval conf Skip (schedule_list [e; Intrinsic (fun conf -> branch conf bs)])
|
||||
|
||||
|
|
@ -635,14 +646,14 @@ module Expr =
|
|||
let not_a_reference s = new Reason.t (Msg.make "not a reference" [||] (Msg.Locator.Point s#coord))
|
||||
|
||||
(* UGLY! *)
|
||||
let predefined_op : (Obj.t -> Obj.t -> Obj.t) ref = Pervasives.ref (fun _ _ -> invalid_arg "must not happen")
|
||||
let predefined_op : (Obj.t -> Obj.t -> Obj.t) ref = Stdlib.ref (fun _ _ -> invalid_arg "must not happen")
|
||||
|
||||
let defCell = Pervasives.ref 0
|
||||
let defCell = Stdlib.ref 0
|
||||
|
||||
(* ======= *)
|
||||
let makeParsers env =
|
||||
let makeParser, makeBasicParser, makeScopeParser =
|
||||
let def s = let Some def = Obj.magic !defCell in def s in
|
||||
let [@ocaml.warning "-26"] makeParser, makeBasicParser, makeScopeParser =
|
||||
let [@ocaml.warning "-20"] def s = let [@ocaml.warning "-8"] Some def = Obj.magic !defCell in def s in
|
||||
let ostap (
|
||||
parse[infix][atr]: h:basic[infix][Void] -";" t:parse[infix][atr] {Seq (h, t)} | basic[infix][atr];
|
||||
scope[infix][atr]: <(d, infix')> : def[infix] expr:parse[infix'][atr] {Scope (d, expr)} | {isVoid atr} => <(d, infix')> : def[infix] => {d <> []} => {Scope (d, materialize atr Skip)};
|
||||
|
|
@ -872,7 +883,7 @@ module Infix =
|
|||
show(showable) @@ Array.map (fun (ass, (_, l)) -> List.map (fun (str, kind, _) -> ass, str, kind) l) infix
|
||||
|
||||
let extract_exports infix =
|
||||
let ass_string = function `Lefta -> "L" | `Righta -> "R" | _ -> "I" in
|
||||
(* let ass_string = function `Lefta -> "L" | `Righta -> "R" | _ -> "I" in *)
|
||||
let exported =
|
||||
Array.map
|
||||
(fun (ass, (_, ops)) ->
|
||||
|
|
@ -1013,7 +1024,7 @@ module Definition =
|
|||
(* end of the workaround *)
|
||||
)
|
||||
|
||||
let makeParser env exprBasic exprScope =
|
||||
let [@ocaml.warning "-26"] makeParser env exprBasic exprScope =
|
||||
let ostap (
|
||||
arg : l:$ x:LIDENT {Loc.attach x l#coord; x};
|
||||
position[pub][ass][coord][newp]:
|
||||
|
|
@ -1107,7 +1118,7 @@ module Interface =
|
|||
Buffer.contents buf
|
||||
|
||||
(* Read an interface file *)
|
||||
let read fname =
|
||||
let [@ocaml.warning "-26"] read fname =
|
||||
let ostap (
|
||||
funspec: "F" "," i:IDENT ";" {`Fun i};
|
||||
varspec: "V" "," i:IDENT ";" {`Variable i};
|
||||
|
|
@ -1201,8 +1212,8 @@ ostap (
|
|||
let parse cmd =
|
||||
let env =
|
||||
object
|
||||
val imports = Pervasives.ref ([] : string list)
|
||||
val tmp_index = Pervasives.ref 0
|
||||
val imports = Stdlib.ref ([] : string list)
|
||||
val tmp_index = Stdlib.ref 0
|
||||
|
||||
method add_import imp = imports := imp :: !imports
|
||||
method get_tmp = let index = !tmp_index in incr tmp_index; Printf.sprintf "__tmp%d" index
|
||||
|
|
@ -1223,7 +1234,7 @@ let parse cmd =
|
|||
definitions
|
||||
in
|
||||
|
||||
let definitions = Pervasives.ref None in
|
||||
let definitions = Stdlib.ref None in
|
||||
|
||||
let (makeParser, makeBasicParser, makeScopeParser) = Expr.makeParsers env in
|
||||
|
||||
|
|
@ -1233,7 +1244,7 @@ let parse cmd =
|
|||
|
||||
definitions := Some (makeDefinitions env exprBasic exprScope);
|
||||
|
||||
let Some definitions = !definitions in
|
||||
let [@ocaml.warning "-8-20"] Some definitions = !definitions in
|
||||
|
||||
let ostap (
|
||||
parse[cmd]:
|
||||
|
|
@ -1255,7 +1266,7 @@ let run_parser cmd =
|
|||
"while"; "do"; "od";
|
||||
"for";
|
||||
"fun"; "var"; "public"; "external"; "import";
|
||||
"case"; "of"; "esac";
|
||||
"case"; "of"; "esac";
|
||||
"box"; "val"; "str"; "sexp"; "array";
|
||||
"infix"; "infixl"; "infixr"; "at"; "before"; "after";
|
||||
"true"; "false"; "lazy"; "eta"; "syntax"]
|
||||
|
|
|
|||
|
|
@ -8,7 +8,9 @@ PXFLAGS = $(CAMLP5)
|
|||
BFLAGS = -rectypes -g -w -13-58 -package GT,ostap,unix
|
||||
OFLAGS = $(BFLAGS)
|
||||
|
||||
all: depend metagen $(TOPFILE)
|
||||
all: # depend metagen # $(TOPFILE)
|
||||
dune build ./Driver.exe
|
||||
ln -sf ../_build/default/src/Driver.exe lamac
|
||||
|
||||
metagen:
|
||||
echo "let version = \"Version `git rev-parse --abbrev-ref HEAD`, `git rev-parse --short HEAD`, `git rev-parse --verify HEAD |git show --no-patch --no-notes --pretty='%cd'`\"" > version.ml
|
||||
|
|
@ -25,6 +27,7 @@ $(TOPFILE).byte: $(SOURCES:.ml=.cmo)
|
|||
|
||||
clean:
|
||||
$(RM) $(TOPFILE) *.cm[ioxa] *.annot *.o *.opt *.byte *~ .depend
|
||||
dune clean
|
||||
|
||||
-include .depend
|
||||
# generic rules
|
||||
|
|
@ -44,4 +47,4 @@ clean:
|
|||
$(OCAMLOPT) -c $(OFLAGS) $(STATIC) $(PXFLAGS) $<
|
||||
|
||||
%.cmx: %.ml
|
||||
$(OCAMLOPT) -c $(OFLAGS) $(STATIC) $(PXFLAGS) $<
|
||||
$(OCAMLOPT) -c $(OFLAGS) $(STATIC) $(PXFLAGS) $<
|
||||
1394
src/X86.ml
1394
src/X86.ml
File diff suppressed because it is too large
Load diff
111
src/dune
Normal file
111
src/dune
Normal file
|
|
@ -0,0 +1,111 @@
|
|||
(env
|
||||
(dev
|
||||
(flags
|
||||
(:standard -warn-error -3-7-8-13-15-20-26-27-32-33-39))))
|
||||
|
||||
(rule
|
||||
(targets version.ml)
|
||||
(action
|
||||
(progn
|
||||
(with-stdout-to
|
||||
version2.ml
|
||||
(progn
|
||||
(run echo let version = "\"")
|
||||
(run echo Version)
|
||||
(run git rev-parse --abbrev-ref HEAD)
|
||||
(run echo , " ")
|
||||
(run git rev-parse --short HEAD)
|
||||
(run echo , " ")
|
||||
(pipe-stdout
|
||||
(run git rev-parse --verify HEAD)
|
||||
(run git show --no-patch --no-notes --pretty='%cd'))
|
||||
(run echo "\"")))
|
||||
(with-stdout-to
|
||||
version.ml
|
||||
(pipe-stdout
|
||||
(run cat version2.ml)
|
||||
(run tr -d '\n'))))))
|
||||
|
||||
(rule
|
||||
(targets stdpath.ml)
|
||||
(action
|
||||
(progn
|
||||
(with-stdout-to
|
||||
stdpath2.ml
|
||||
(progn
|
||||
(run echo let path = "\"")
|
||||
(run opam var share)
|
||||
(run echo /Lama)
|
||||
(run echo "\"")))
|
||||
(with-stdout-to
|
||||
stdpath.ml
|
||||
(pipe-stdout
|
||||
(run cat stdpath2.ml)
|
||||
(run tr -d '\n'))))))
|
||||
|
||||
(library
|
||||
(name liba)
|
||||
(modules Language Pprinter stdpath version X86 SM)
|
||||
(libraries GT ostap)
|
||||
(flags
|
||||
(:standard
|
||||
-rectypes
|
||||
;-dsource
|
||||
))
|
||||
; (ocamlopt_flags
|
||||
; (:standard -dsource))
|
||||
(wrapped false)
|
||||
(preprocess
|
||||
(per_module
|
||||
((pps GT.ppx_all)
|
||||
SM
|
||||
X86)
|
||||
((action
|
||||
(run %{project_root}/src/pp5+gt+plugins+ostap+dump.byte %{input-file}))
|
||||
Language
|
||||
Pprinter
|
||||
stdpath
|
||||
version)))
|
||||
(preprocessor_deps
|
||||
(file %{project_root}/src/pp5+gt+plugins+ostap+dump.byte)
|
||||
;(file %{project_root}/src/pp5+gt+plugins+ostap+dump.exe)
|
||||
)
|
||||
;(inline_tests)
|
||||
)
|
||||
|
||||
(executable
|
||||
(name Driver)
|
||||
(flags
|
||||
(:standard
|
||||
-rectypes
|
||||
;-dsource
|
||||
))
|
||||
(modules Driver)
|
||||
(libraries liba unix))
|
||||
|
||||
; (rule
|
||||
; (targets pp5+gt+plugins+ostap+dump.exe)
|
||||
; (deps
|
||||
; (package GT))
|
||||
; (action
|
||||
; (run
|
||||
; mkcamlp5.opt
|
||||
; -package
|
||||
; camlp5,camlp5.pa_o,camlp5.pr_dump,camlp5.extend,camlp5.quotations,ostap.syntax,GT.syntax.all,GT.syntax
|
||||
; -o
|
||||
; %{targets})))
|
||||
|
||||
(rule
|
||||
(targets pp5+gt+plugins+ostap+dump.byte)
|
||||
(deps
|
||||
(package GT))
|
||||
(action
|
||||
(run
|
||||
mkcamlp5
|
||||
-package
|
||||
camlp5,camlp5.pa_o,camlp5.pr_o,ostap.syntax,GT.syntax.all,GT.syntax
|
||||
-o
|
||||
%{targets})))
|
||||
|
||||
(cram
|
||||
(deps ./Driver.exe))
|
||||
|
|
@ -1 +0,0 @@
|
|||
let path = "/home/db/.opam/4.14.0+flambda/share/Lama"
|
||||
|
|
@ -1 +0,0 @@
|
|||
let version = "Version 1.10, 1bafe839d, Sun Mar 12 05:30:58 2023 +0300"
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
TESTS=$(sort $(basename $(wildcard test*.lama)))
|
||||
TESTS=$(sort $(filter-out test30, $(basename $(wildcard test*.lama))))
|
||||
|
||||
LAMAC=../../src/lamac
|
||||
|
||||
|
|
@ -7,8 +7,8 @@ LAMAC=../../src/lamac
|
|||
check: $(TESTS)
|
||||
|
||||
$(TESTS): %: %.lama
|
||||
@echo $@
|
||||
LAMA=../../runtime $(LAMAC) -I .. -ds -dp $< && ./$@ > $@.log && diff $@.log orig/$@.log
|
||||
@echo "stdlib/regression/$@"
|
||||
@LAMA=../../runtime $(LAMAC) -I .. -ds -dp $< && ./$@ > $@.log && diff $@.log orig/$@.log
|
||||
|
||||
clean:
|
||||
$(RM) test*.log *.s *~ $(TESTS) *.i
|
||||
|
|
|
|||
|
|
@ -14,5 +14,5 @@
|
|||
1
|
||||
0
|
||||
0
|
||||
31
|
||||
1
|
||||
-1
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue