* Add -o flag support to flash command. Fixes#4937
* Remove empty outpath check in validateOutputFormat
---------
Co-authored-by: rdon <you@example.com>
* Use diskutil on macOS to extract volume name and path for FAT mounts
* Improve FAT mount detection on macOS by parsing diskutil output into a map
* Simplify conditional check
This is useful for the TinyGo Playground: with this change it can show
the error span like in an IDE, instead of just the (single) error
position. Errors become a bit more readable as a result.
This changes the -json flag for build/run/flash/gdb etc commands to not
print `compileopts.Config` but instead match upstream Go and print build
errors in a structured way.
For more details, see the proposal:
https://github.com/golang/go/issues/62067
Support for GOARCH=wasm was only available for `tinygo build`, not for
any of the other subcommands (`test`, `run`, etc). With this PR, these
subcommands should work again for supported values of GOOS.
This fixes the following error for example:
$ make tinygo-test-wasip1
GOOS=wasip1 GOARCH=wasm /home/ayke/bin/tinygo test cmp compress/lzw compress/zlib [...etc]
cannot resolve packages: GOARCH=wasm but GOOS is unset. Please set GOOS to wasm, wasip1, or wasip2.
make: *** [GNUmakefile:489: tinygo-test-wasip1] Error 1
older behavior for wasi modules to not return an exit code as if they were reactors.
See #4726 for some details on what this is intended to address.
Signed-off-by: deadprogram <ron@hybridgroup.com>
This is not a big change over the existing size report with -size=full,
but it is a bit more readable.
More information will be added in subsequent commits.
This adds support for the `//go:wasmexport` pragma as proposed here:
https://github.com/golang/go/issues/65199
It is currently implemented only for wasip1 and wasm-unknown, but it is
certainly possible to extend it to other targets like GOOS=js and
wasip2.
This matches upstream Go. Example:
$ go test -ldflags='-extldflags=-foobar' os
# os.test
/usr/local/go1.23.1/pkg/tool/linux_arm64/link: running gcc failed: exit status 1
/usr/bin/gcc -s -o $WORK/b001/os.test -rdynamic /tmp/go-link-914594215/go.o /tmp/go-link-914594215/000000.o /tmp/go-link-914594215/000001.o /tmp/go-link-914594215/000002.o /tmp/go-link-914594215/000003.o /tmp/go-link-914594215/000004.o /tmp/go-link-914594215/000005.o /tmp/go-link-914594215/000006.o /tmp/go-link-914594215/000007.o /tmp/go-link-914594215/000008.o /tmp/go-link-914594215/000009.o /tmp/go-link-914594215/000010.o /tmp/go-link-914594215/000011.o /tmp/go-link-914594215/000012.o /tmp/go-link-914594215/000013.o /tmp/go-link-914594215/000014.o /tmp/go-link-914594215/000015.o /tmp/go-link-914594215/000016.o /tmp/go-link-914594215/000017.o /tmp/go-link-914594215/000018.o /tmp/go-link-914594215/000019.o /tmp/go-link-914594215/000020.o /tmp/go-link-914594215/000021.o -O2 -g -O2 -g -lresolv -O2 -g -lpthread -foobar
gcc: error: unrecognized command-line option ‘-foobar’
FAIL os [build failed]
FAIL
And TinyGo, with this patch:
$ tinygo test -ldflags='-extldflags=-foobar' os
FAIL os 0.000s
ld.lld: error: unknown argument '-foobar'
Also note that Go doesn't support the `-extldflags` directly (which was
previously the case with TinyGo):
$ go test -extldflags='-foobar' os
flag provided but not defined: -extldflags
[...]
Previously, the compiler would default to hardfloat. This is not
supported by some MIPS CPUs.
This took me much longer than it should have because of a quirk in the
LLVM Mips backend: if the target-features string is not set (like during
LTO), the Mips backend picks the first function in the module and uses
that. Unfortunately, in the case of TinyGo this first function is
`llvm.dbg.value`, which is an LLVM intrinsic and doesn't have the
target-features string. I fixed it by adding a `-mllvm -mattr=` flag to
the linker.
This shows nicely formatted error messages for missing symbol names and
for out-of-flash, out-of-RAM conditions (on microcontrollers with
limited flash/RAM).
Unfortunately the missing symbol name errors aren't available on Windows
and WebAssembly because the linker doesn't report source locations yet.
This is something that I could perhaps improve in LLD.
This adds the same panic locations that are already present for
`tinygo flash -monitor`, but for `tinygo run` and `tinygo test`.
For example, this is the output that I get while working on some GC
code. It now shows the source location instead of just an address:
$ tinygo test -v archive/zip
=== RUN TestReader
=== RUN TestReader/test.zip
panic: runtime error at 0x000000000024d9b4: goroutine stack overflow
[tinygo: panic at /home/ayke/src/tinygo/tinygo/src/internal/task/task_stack.go:58:15]
FAIL archive/zip 0.139s
(This particular location isn't all that useful, but it shows that the
feature works).
These libraries will be automatically built when needed and cached.
The main reason these were needed is for play.tinygo.org, but I've now
prebuilt them there directly (so they don't need to be built for every
tarball).
This is a refactor, which should (in theory) not change the behavior of
the compiler. But since this is a pretty large change, there is a chance
there will be some regressions. For that reason, the previous commits
added a bunch of tests to make sure most error messages will not be
changed due to this refactor.
This is needed for some improvements I'm going to make next.
This commit also refactors error handling slightly to make it more
easily testable, this should hopefully not result in any actual changes
in behavior.
Some devices, such as Seeed Studio XIAO with Adafruit bootloader, use complex names for UF2 device. With this fix applied, /proc/mounts should be parsed correctly
This eliminates the 'wasi' build tag in favor of 'GOOS=wasip1', introduced in Go 1.21.
For backwards compatablity, -target=wasi is a synonym for -target=wasip1.
Previously all (except one!) usage of goenv.Version manually added the
git sha1 hash, leading to duplicate code. I've moved this to do it all
in one place, to avoid this duplication.
It looks like this on my system, for example:
{
"target": {
"llvm-target": "aarch64-unknown-linux",
"cpu": "generic",
"features": "+neon",
"goos": "linux",
"goarch": "arm64",
"build-tags": [
"linux",
"arm64"
],
"gc": "precise",
"scheduler": "tasks",
"linker": "ld.lld",
"rtlib": "compiler-rt",
"libc": "musl",
"default-stack-size": 65536,
"ldflags": [
"--gc-sections"
],
"extra-files": [
"src/runtime/asm_arm64.S",
"src/internal/task/task_stack_arm64.S"
],
"gdb": [
"gdb"
],
"flash-1200-bps-reset": "false"
},
"goroot": "/home/ayke/.cache/tinygo/goroot-23c311bcaa05f188affa3c42310aba343acc82562d5e5f04dea9d5b79ac35f7e",
"goos": "linux",
"goarch": "arm64",
"goarm": "6",
...
}
This can be very useful while working on the automatically generated
target object for example (in my case, GOOS=wasip1).
This replaces our own manual detection of various variables (GOROOT,
GOPATH, Go version) with a simple call to `go env`.
If the `go` command is not found:
error: could not find 'go' command: executable file not found in $PATH
If the Go version is too old:
error: requires go version 1.18 through 1.20, got go1.17
If the Go tool itself outputs an error (using GOROOT=foobar here):
go: cannot find GOROOT directory: foobar
This does break the case where `go` wasn't available in $PATH but we
would detect it anyway (via some hardcoded OS-dependent paths). I'm not
sure we want to fix that: I think it's better to tell users "make sure
`go version` prints the right value" than to do some automagic detection
of Go binary locations.