From 3fbae879fc1b678e748ab3f8c24148e1c3818f45 Mon Sep 17 00:00:00 2001
From: JF Bastien <jfb@chromium.org>
Date: Thu, 4 Feb 2016 05:18:07 -0800
Subject: Support start

As spec'd in: https://github.com/WebAssembly/design/pull/495
And discussed in: https://github.com/WebAssembly/spec/issues/231

This will make it simpler and more uniform to add a start entry point.

s2wasm is the right place to add start because it'll eventually need to
do other basic setup, e.g. put code in start to setup the stack, as
dschuff is doing in:
  https://github.com/WebAssembly/binaryen/pull/179
Or rather, the linker is the right place and s2wasm happens to act as
our linker right now.
---
 test/dot_s/start_main0.s    |  8 ++++++++
 test/dot_s/start_main0.wast | 12 ++++++++++++
 test/dot_s/start_main2.s    | 11 +++++++++++
 test/dot_s/start_main2.wast | 20 ++++++++++++++++++++
 4 files changed, 51 insertions(+)
 create mode 100644 test/dot_s/start_main0.s
 create mode 100644 test/dot_s/start_main0.wast
 create mode 100644 test/dot_s/start_main2.s
 create mode 100644 test/dot_s/start_main2.wast

(limited to 'test')

diff --git a/test/dot_s/start_main0.s b/test/dot_s/start_main0.s
new file mode 100644
index 000000000..85323ee62
--- /dev/null
+++ b/test/dot_s/start_main0.s
@@ -0,0 +1,8 @@
+	.text
+	.file	"main0"
+	.globl	main
+	.type	main,@function
+main:                                   # @main
+# BB#0:
+.Lfunc_end0:
+	.size	main, .Lfunc_end0-main
diff --git a/test/dot_s/start_main0.wast b/test/dot_s/start_main0.wast
new file mode 100644
index 000000000..d40390aee
--- /dev/null
+++ b/test/dot_s/start_main0.wast
@@ -0,0 +1,12 @@
+(module
+  (memory 0 4294967295)
+  (start $_start)
+  (export "main" $main)
+  (export "_start" $_start)
+  (func $main
+  )
+  (func $_start
+    (call $main)
+  )
+)
+;; METADATA: { "asmConsts": {},"staticBump": 4 }
diff --git a/test/dot_s/start_main2.s b/test/dot_s/start_main2.s
new file mode 100644
index 000000000..7f77ec463
--- /dev/null
+++ b/test/dot_s/start_main2.s
@@ -0,0 +1,11 @@
+	.text
+	.file	"main2"
+	.globl	main
+	.type	main,@function
+main:                                   # @main
+	.param  	i32, i32
+	.result 	i32
+# BB#0:
+	return  	$0
+.Lfunc_end0:
+	.size	main, .Lfunc_end0-main
diff --git a/test/dot_s/start_main2.wast b/test/dot_s/start_main2.wast
new file mode 100644
index 000000000..42e8b4897
--- /dev/null
+++ b/test/dot_s/start_main2.wast
@@ -0,0 +1,20 @@
+(module
+  (memory 0 4294967295)
+  (start $_start)
+  (export "main" $main)
+  (export "_start" $_start)
+  (func $main (param $$0 i32) (param $$1 i32) (result i32)
+    (return
+      (get_local $$0)
+    )
+  )
+  (func $_start
+    (local $0 i32)
+    (local $1 i32)
+    (call $main
+      (get_local $0)
+      (get_local $1)
+    )
+  )
+)
+;; METADATA: { "asmConsts": {},"staticBump": 4 }
-- 
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