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authorPatrick Walton <pcwalton@mimiga.net>2011-08-20 14:22:09 -0700
committerPatrick Walton <pcwalton@mimiga.net>2011-08-20 14:22:09 -0700
commit25416bfae190d68d706b80903e46748da3dfadc4 (patch)
tree31766c7eef24b3edc76a3ddceafe3bc1861170e3 /src/rt/rust_abi.cpp
parent2f650038ad3e53d92203153eef03294a95daba41 (diff)
downloadrust-25416bfae190d68d706b80903e46748da3dfadc4.tar.gz
rust-25416bfae190d68d706b80903e46748da3dfadc4.zip
rustc: Introduce ABI versioning so we can change value representations without breaking the compiler
Diffstat (limited to 'src/rt/rust_abi.cpp')
-rw-r--r--src/rt/rust_abi.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/rt/rust_abi.cpp b/src/rt/rust_abi.cpp
new file mode 100644
index 00000000000..98b80fb41bd
--- /dev/null
+++ b/src/rt/rust_abi.cpp
@@ -0,0 +1,10 @@
+#include <cstdlib>
+#include <stdint.h>
+#include "rust_abi.h"
+
+weak_symbol<uint32_t> abi_version("rust_abi_version");
+
+uint32_t get_abi_version() {
+    return (*abi_version == NULL) ? 0 : **abi_version;
+}
+