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authorYuta Saito <kateinoigakukun@gmail.com>2022-01-15 23:10:48 +0900
committerYuta Saito <kateinoigakukun@gmail.com>2022-01-19 11:19:06 +0900
commit65f95f26ff0e7b4be4704fedc52344a26d22a4e2 (patch)
treee4bd17869d8dd479855592f3a571aacae19e964c /wasm/asyncify.h
parente41b121e94ccce9877824e55f865885bbabe40c3 (diff)
downloadruby-65f95f26ff0e7b4be4704fedc52344a26d22a4e2.tar.gz
[wasm] add asyncify based setjmp, fiber, register scan emulation
configure.ac: setup build tools and register objects main.c: wrap main with rb_wasm_rt_start to handle asyncify unwinds tool/m4/ruby_wasm_tools.m4: setup default command based on WASI_SDK_PATH environment variable. checks wasm-opt which is used for asyncify. tool/wasm-clangw wasm/wasm-opt: a clang wrapper which replaces real wasm-opt with do-nothing wasm-opt to avoid misoptimization before asyncify. asyncify is performed at POSTLINK, but clang linker driver tries to run optimization by wasm-opt unconditionally. inlining pass at wasm level breaks asyncify's assumption, so should not optimize before POSTLIK. wasm/GNUmakefile.in: wasm specific rules to compile objects
Diffstat (limited to 'wasm/asyncify.h')
-rw-r--r--wasm/asyncify.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/wasm/asyncify.h b/wasm/asyncify.h
new file mode 100644
index 0000000000..834fc8b570
--- /dev/null
+++ b/wasm/asyncify.h
@@ -0,0 +1,13 @@
+#ifndef RB_WASM_SUPPORT_ASYNCIFY_H
+#define RB_WASM_SUPPORT_ASYNCIFY_H
+
+__attribute__((import_module("asyncify"), import_name("start_unwind")))
+void asyncify_start_unwind(void *buf);
+__attribute__((import_module("asyncify"), import_name("stop_unwind")))
+void asyncify_stop_unwind(void);
+__attribute__((import_module("asyncify"), import_name("start_rewind")))
+void asyncify_start_rewind(void *buf);
+__attribute__((import_module("asyncify"), import_name("stop_rewind")))
+void asyncify_stop_rewind(void);
+
+#endif