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The goroutine tests are failing with the default 256 byte stack size.
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In the early days of TinyGo, the idea of `postinit` was to enable
interrupts only after initializers have run. Which kind of makes
sense... except that `time.Sleep` is allowed in init code and
`time.Sleep` requires interrupts to be enabled. Therefore, interrupts
must be enabled while initializers are being run.
This commit simply moves the enabling of interrupts to a point right
before running package initializers. It also removes `runtime.postinit`,
which is not necessary anymore (and was only used on AVR).
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Switching to a shared semaphore allows multi-build operations (compiler tests, package tests, etc.) to use the expected degree of parallelism efficiently.
While refactoring the job runner, the time complexity was also reduced from O(n^2) to O(n+m) (where n is the number of jobs, and m is the number of dependencies).
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Previously, -scheduler=none wasn't possible for WASM targets:
$ tinygo run -target=wasm -scheduler=none ./testdata/stdlib.go
src/runtime/runtime_wasm_js.go:34:2: attempted to start a goroutine without a scheduler
With this commit, it works just fine:
$ tinygo run -target=wasm -scheduler=none ./testdata/stdlib.go
stdin: /dev/stdin
stdout: /dev/stdout
stderr: /dev/stderr
pseudorandom number: 1298498081
strings.IndexByte: 2
strings.Replace: An-example-string
Supporting `-scheduler=none` has some benefits:
* it reduces file size a lot compared to having a scheduler
* it allows JavaScript to call exported functions
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The idea here is as follows:
- Run all Linux and cross compilation tests in the asser-test-linux
job.
- Only run native tests on MacOS and Windows.
This reduces testing time on MacOS and Windows, which are generally more
expensive in CI. Also, by not duplicating tests in Windows and MacOS we
can reduce overall CI usage a bit.
I've also changed the assert-test-linux job a bit to so that the tests
that are more likely to break and the tests that are only run in
assert-test-linux are run first.
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This uses Mingw-w64, which seems to be the de facto standard for porting
Unixy programs to Windows.
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The assembly symbols were not marked as hidden and so were exported,
leading to unreferenced symbols.
Example error message:
Error: failed to run main module `/tmp/tinygo3961039405/main`
Caused by:
0: failed to instantiate "/tmp/tinygo3961039405/main"
1: unknown import: `asyncify::stop_rewind` has not been defined
This commit fixes this issue.
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This environment variable can be set to 5, 6, or 7 and controls which
ARM version (ARMv5, ARMv6, ARMv7) is used when compiling for GOARCH=arm.
I have picked the default value ARMv6, which I believe is supported on
most common single board computers including all Raspberry Pis. The
difference in code size is pretty big.
We could even go further and support ARMv4 if anybody is interested. It
should be pretty simple to add this if needed.
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This commit changes `tinygo test` to always look at the exit code of the
running test, instead of looking for a "PASS" string at the end of the
output. This is possible now that the binaries running under
qemu-system-arm or qemu-system-riscv32 will signal the correct exit code
when they exit.
As a side effect, this also makes it possible to avoid the "PASS" line
between successful tests. Before:
$ tinygo test container/heap container/list
PASS
ok container/heap 0.001s
PASS
ok container/list 0.001s
After:
$ tinygo test container/heap container/list
ok container/heap 0.001s
ok container/list 0.001s
The new behavior is more in line with upstream Go:
go test container/heap container/list
ok container/heap 0.004s
ok container/list 0.004s
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... instead of setting a special -target= value. This is more robust and
makes sure that the test actually tests different arcitectures as they
would be compiled by TinyGo. As an example, the bug of the bugfix in the
previous commit ("arm: use armv7 instead of thumbv7") would have been
caught if this change was applied earlier.
I've decided to put GOOS/GOARCH in compileopts.Options, as it makes
sense to me to treat them the same way as command line parameters.
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This commit changes a target triple like "armv6m-none-eabi" to
"armv6m-unknown-unknow-eabi". The reason is that while the former is
correctly parsed in Clang (due to normalization), it wasn't parsed
correctly in LLVM meaning that the environment wasn't set to EABI.
This change normalizes all target triples and uses the EABI environment
(-eabi in the triple) for Cortex-M targets.
This change also drops the `--target=` flag in the target JSON files,
the flag is now added implicitly in `(*compileopts.Config).CFlags()`.
This removes some duplication in target JSON files.
Unfortunately, this change also increases code size for Cortex-M
targets. It looks like LLVM now emits calls like __aeabi_memmove instead
of memmove, which pull in slightly more code (they basically just call
the regular C functions) and the calls themself don't seem to be as
efficient as they could be. Perhaps this is a LLVM bug that will be
fixed in the future, as this is a very common occurrence.
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This simplifies the tests a bit.
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They aren't supported anymore in CI, and because untested code is broken
code, let's remove support for these Go versions altogether.
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This flag is passed automatically with the (new) -v flag for TinyGo. For
example, this prints all the test outputs:
$ tinygo test -v crypto/md5
=== RUN TestGolden
--- PASS: TestGolden
=== RUN TestGoldenMarshal
--- PASS: TestGoldenMarshal
=== RUN TestLarge
--- PASS: TestLarge
=== RUN TestBlockGeneric
--- PASS: TestBlockGeneric
=== RUN TestLargeHashes
--- PASS: TestLargeHashes
PASS
ok crypto/md5 0.002s
This prints just a summary:
$ tinygo test crypto/md5
PASS
ok crypto/md5 0.002s
(The superfluous 'PASS' message may be removed in the future).
This is especially useful when testing a large number of packages:
$ tinygo test crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512
PASS
ok crypto/md5 0.002s
PASS
ok crypto/sha1 0.043s
PASS
ok crypto/sha256 0.002s
PASS
ok crypto/sha512 0.003s
At the moment, the -test.v flag is not supplied to binaries running in
emulation. I intend to fix this after
https://github.com/tinygo-org/tinygo/pull/2038 lands by refactoring
runPackageTest, Run, and runTestWithConfig in the main package which all
do something similar.
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This is mainly useful to be able to run `tinygo test`, for example:
tinygo test -target=cortex-m-qemu -v math
This is not currently supported, but will be in the future.
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This is done via wasi-libc and the WASI interface, for ease of
maintenance (only one implementation for both WASI and JS/browsers).
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These two heaps conflict with each other, so that if any function uses
the dlmalloc heap implementation it will eventually result in memory
corruption.
This commit fixes this by implementing all heap-related functions. This
overrides the functions that are implemented in wasi-libc. That's why
all of them are implemented (even if they just panic): to make sure no
program accidentally uses the wrong one.
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While LLVM coroutines are one implementation of goroutines, it is not
the only one. Therefore, rename the tests to 'goroutines' to better
describe what they're for.
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Implement command line arguments for Linux, MacOS and WASI.
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This commit implements replacing some global variables with a different
value, if the global variable has no initializer. For example, if you
have:
package main
var version string
you can replace the value with -ldflags="-X main.version=0.2".
Right now it only works for uninitialized globals. The Go tooling also
supports initialized globals (var version = "<undefined>") but that is a
bit hard to combine with how initialized globals are currently
implemented.
The current implementation still allows caching package IR files while
making sure the values don't end up in the build cache. This means
compiling a program multiple times with different values will use the
cached package each time, inserting the string value only late in the
build process.
Fixes #1045
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Don't run the entire test suite for these options, as that would quickly
explode the testing time (making it less likely people actually run it).
Instead, run just one test for each configuration that should check for
most issues.
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- Explicitly list all test cases. This makes it possible to store
tests in testdata/ that aren't tested on all platforms.
- Clean up filesystem and env test, by running them in a subtest and
deduplicating some code and removing the additionalArgs parameter.
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Signed-off-by: Takeshi Yoneda <[email protected]>
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Signed-off-by: Takeshi Yoneda <[email protected]>
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Signed-off-by: mathetake <[email protected]>
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To avoid breaking this, make sure we actually test x86-32 (aka i386 aka
GOARCH=386) support in CI.
Also remove the now-unnecessary binutils-arm-none-eabi package to speed
up CI a bit.
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* initial commit for WASI support
* merge "time" package with wasi build tag
* override syscall package with wasi build tag
* create runtime_wasm_{js,wasi}.go files
* create syscall_wasi.go file
* create time/zoneinfo_wasi.go file as the replacement of zoneinfo_js.go
* add targets/wasi.json target
* set visbility hidden for runtime extern variables
Accodring to the WASI docs (https://github.com/WebAssembly/WASI/blob/master/design/application-abi.md#current-unstable-abi),
none of exports of WASI executable(Command) should no be accessed.
v0.19.0 of bytecodealliance/wasmetime, which is often refered to as the reference implementation of WASI,
does not accept any exports except functions and the only limited variables like "table", "memory".
* merge syscall_{baremetal,wasi}.go
* fix js target build
* mv wasi functions to syscall/wasi && implement sleepTicks
* WASI: set visibility hidden for globals variables
* mv back syscall/wasi/* to runtime package
* WASI: add test
* unexport wasi types
* WASI test: fix wasmtime path
* stop changing visibility of runtime.alloc
* use GOOS=linux, GOARCH=arm for wasi target
Signed-off-by: mathetake <[email protected]>
* WASI: fix build tags for os/runtime packages
Signed-off-by: mathetake <[email protected]>
* run WASI test only on Linux
Signed-off-by: mathetake <[email protected]>
* set InternalLinkage instead of changing visibility
Signed-off-by: mathetake <[email protected]>
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This is a big change that will determine the stack size for many
goroutines automatically. Functions that aren't recursive and don't call
function pointers can in many cases have an automatically determined
worst case stack size. This is useful, as the stack size is usually much
lower than the previous hardcoded default of 1024 bytes: somewhere
around 200-500 bytes is common.
A side effect of this change is that the default stack sizes (including
the stack size for other architectures such as AVR) can now be changed
in the config JSON file, making it tunable per application.
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This makes it easy to test one particular architecture, for example:
go test -v -target=hifive1-qemu
This speeds up testing and allows testing targets that are not included
in the test by default (such as RISC-V tests on Linux).
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This is necessary to avoid a circular dependency in the loader (which
soon will need to read the Go version) and because it seems like a
better place anyway.
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See commit:
https://github.com/golang/go/commit/54e6ba6724dfde355070238f9abc16362cac2e3d
Warning: this will drop support for Go 1.13 for WebAssembly targets!
I have modified the integration tests to specifically blacklist Go 1.13
instead of whitelisting any other version, to avoid accidentally not
testing WebAssembly.
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This is necessary because LLVM defines many options in global variables
that are modified when invoking Clang. In particular, LLVM 10 seems to
have a bug in which it always sets the -pgo-warn-misexpect flag. Setting
it multiple times (over various cc1 invocations) results in an error:
clang (LLVM option parsing): for the --pgo-warn-misexpect option: may only occur zero or one times!
This is fixed by running the Clang invocation in a new `tinygo`
invocation.
Because we've had issues with lld in the past, also run lld in a
separate process so similar issues won't happen with lld in the future.
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This allows running RISC-V tests in CI using QEMU, which should help
catch bugs.
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This should avoid the rather frequent "test ran too long,
terminating..." error message that often occurs in CI and when running
`go test` manually. Apparently I was too optimistic: some tests take
longer than 1 second to run.
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This commit switches integration tests to use the same error reporting
mechanism as the tinygo compiler normally uses. It replaces errors like
this:
main_test.go:139: failed to build: interp: branch on a non-constant
With this:
main.go:693: # math/rand
main.go:695: interp: branch on a non-constant
In this particular case the error isn't much better (it gives the
relevant package, though) but other errors should also include the
source location where they happen.
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Finally, all tests run on all targets!
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Use the cross compiling toolchains for compiling/linking. This fixes CGo
support, and therefore allows CGo to be used when cross compiling to
Linux on a different architecture.
This commit also removes some redundant testing code.
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This caused most tests to run the zeroalloc.go test instead of what they
should have been tested, and in turn explains most of the performance
gains of parallel testing.
This commit fixes it by avoiding race conditions. Luckily, no tests
started failing since then due to this.
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Sometimes, tests suddenly hang somewhere (in particular in emulators
where crashes often lead to hangs). Setting a limit has two advantages:
1. Quickly killing test processes that are frozen (as opposed to
waiting for the default 10min go test timeout).
2. The output becomes visible, hopefully giving a clue what went
wrong.
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Eventually, open files should be closed when the GC runs and the
finalizer is called. However we shouldn't rely on that.
Using `ioutil.ReadFile` as it's a simpler pattern anyway.
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The target is intended to emulate the Cortex-M, not to be a generic QEMU
target.
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This is a large commit that moves all code directly related to
compiling/linking into a new builder package. This has a number of
advantages:
* It cleanly separates the API between the command line and the full
compilation (with a very small API surface).
* When the compiler finally compiles one package at a time (instead of
everything at once as it does now), something will have to invoke it
once per package. This builder package will be the natural place to
do that, and also be the place where the whole process can be
parallelized.
* It allows the TinyGo compiler to be used as a package. A client can
simply import the builder package and compile code using it.
As part of this refactor, the following additional things changed:
* Exported symbols have been made unexported when they weren't needed.
* The compilation target has been moved into the compileopts.Options
struct. This is done because the target really is just another
compiler option, and the API is simplified by moving it in there.
* The moveFile function has been duplicated. It does not really belong
in the builder API but is used both by the builder and the command
line. Moving it into a separate package didn't seem useful either
for what is essentially an utility function.
* Some doc strings have been improved.
Some future changes/refactors I'd like to make after this commit:
* Clean up the API between the builder and the compiler package.
* Perhaps move the test files (in testdata/) into the builder package.
* Perhaps move the loader package into the builder package.
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