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cgo: add support for stdio in picolibc and wasi-libc

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This adds support for stdio in picolibc and fixes wasm_exec.js so that
it can also support C puts. With this, C stdout works on all supported
platforms.
This commit is contained in:
Ayke van Laethem
2021-09-24 01:39:56 +02:00
committed by Ron Evans
parent 1645f45c1a
commit 14bb90c3c0
11 changed files with 158 additions and 7 deletions
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compileopts/config.go
+6 -1
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@@ -206,7 +206,12 @@ func (c *Config) CFlags() []string {
}
if c.Target.Libc == "picolibc" {
root := goenv.Get("TINYGOROOT")
cflags = append(cflags, "-nostdlibinc", "-Xclang", "-internal-isystem", "-Xclang", filepath.Join(root, "lib", "picolibc", "newlib", "libc", "include"))
picolibcDir := filepath.Join(root, "lib", "picolibc", "newlib", "libc")
cflags = append(cflags,
"-nostdlibinc",
"-Xclang", "-internal-isystem", "-Xclang", filepath.Join(picolibcDir, "include"),
"-Xclang", "-internal-isystem", "-Xclang", filepath.Join(picolibcDir, "tinystdio"),
)
cflags = append(cflags, "-I"+filepath.Join(root, "lib/picolibc-include"))
}
// Always emit debug information. It is optionally stripped at link time.