mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-03 18:47:47 +00:00
Ayke van Laethem
a545f17d2e
This adds true GOOS=wasip1 support in addition to our existing -target=wasi support. The old support for WASI isn't removed, but should be treated as deprecated and will likely be removed eventually to reduce the test burden.
52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
//go:build linux || darwin || windows || wasip1
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package runtime
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// Update the C environment if cgo is loaded.
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// Called from Go 1.20 and above.
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//
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//go:linkname syscallSetenv syscall.runtimeSetenv
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func syscallSetenv(key, value string) {
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keydata := cstring(key)
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valdata := cstring(value)
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setenv(&keydata[0], &valdata[0])
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if key == "GODEBUG" && godebugUpdate != nil {
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// Starting with Go 1.20, we need to call a callback (set by
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// internal/godebug) to notify the GODEBUG environment variable has
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// changed. This is necessary to get archive/zip to pass tests.
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godebugUpdate(key, value)
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}
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}
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// Update the C environment if cgo is loaded.
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// Called from Go 1.20 and above.
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//
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//go:linkname syscallUnsetenv syscall.runtimeUnsetenv
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func syscallUnsetenv(key string) {
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keydata := cstring(key)
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unsetenv(&keydata[0])
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}
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// Compatibility with Go 1.19 and below.
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//
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//go:linkname syscall_setenv_c syscall.setenv_c
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func syscall_setenv_c(key string, val string) {
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syscallSetenv(key, val)
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}
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// Compatibility with Go 1.19 and below.
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//
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//go:linkname syscall_unsetenv_c syscall.unsetenv_c
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func syscall_unsetenv_c(key string) {
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syscallUnsetenv(key)
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}
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// cstring converts a Go string to a C string.
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// borrowed from syscall
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func cstring(s string) []byte {
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data := make([]byte, len(s)+1)
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copy(data, s)
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// final byte should be zero from the initial allocation
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return data
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}
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