[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

1 files changed, 21 insertions, 0 deletions

diff --git a/vendor/github.com/tetratelabs/wazero/internal/platform/mremap_unix.go b/vendor/github.com/tetratelabs/wazero/internal/platform/mremap_unix.go
new file mode 100644
index 000000000..8f42d44fd
--- /dev/null
+++ b/vendor/github.com/tetratelabs/wazero/internal/platform/mremap_unix.go
@@ -0,0 +1,21 @@
+//go:build (darwin || linux || freebsd) && !tinygo
+
+package platform
+
+func remapCodeSegmentAMD64(code []byte, size int) ([]byte, error) {
+	return remapCodeSegment(code, size, mmapProtAMD64)
+}
+
+func remapCodeSegmentARM64(code []byte, size int) ([]byte, error) {
+	return remapCodeSegment(code, size, mmapProtARM64)
+}
+
+func remapCodeSegment(code []byte, size, prot int) ([]byte, error) {
+	b, err := mmapCodeSegment(size, prot)
+	if err != nil {
+		return nil, err
+	}
+	copy(b, code)
+	mustMunmapCodeSegment(code)
+	return b, nil
+}