Exporting/importing debug location information from .wast/.asm.js/.s formats (#1017)

* Extends wasm-as, wasm-dis and s2wasm to consume debug locations.

* Exports source map from asm2wasm

1 files changed, 228 insertions, 0 deletions

diff --git a/test/fib-dbg.wasm.fromBinary b/test/fib-dbg.wasm.fromBinary
new file mode 100644
index 000000000..3f940fa8a
--- /dev/null
+++ b/test/fib-dbg.wasm.fromBinary
@@ -0,0 +1,228 @@
+(module
+ (type $0 (func (param i32 i32)))
+ (type $1 (func (param i32) (result i32)))
+ (type $2 (func (result i32)))
+ (type $3 (func (param i32)))
+ (type $4 (func))
+ (import "env" "DYNAMICTOP_PTR" (global $import$0 i32))
+ (import "env" "tempDoublePtr" (global $import$1 i32))
+ (import "env" "ABORT" (global $import$2 i32))
+ (import "env" "STACKTOP" (global $import$3 i32))
+ (import "env" "STACK_MAX" (global $import$4 i32))
+ (import "env" "gb" (global $import$5 i32))
+ (import "env" "fb" (global $import$6 i32))
+ (import "global" "NaN" (global $import$7 f64))
+ (import "global" "Infinity" (global $import$8 f64))
+ (import "env" "memory" (memory $0 256 256))
+ (import "env" "table" (table 0 0 anyfunc))
+ (import "env" "memoryBase" (global $import$11 i32))
+ (import "env" "tableBase" (global $import$12 i32))
+ (global $global$0 (mut i32) (get_global $import$0))
+ (global $global$1 (mut i32) (get_global $import$1))
+ (global $global$2 (mut i32) (get_global $import$2))
+ (global $global$3 (mut i32) (get_global $import$3))
+ (global $global$4 (mut i32) (get_global $import$4))
+ (global $global$5 (mut i32) (get_global $import$5))
+ (global $global$6 (mut i32) (get_global $import$6))
+ (global $global$7 (mut i32) (i32.const 0))
+ (global $global$8 (mut i32) (i32.const 0))
+ (global $global$9 (mut i32) (i32.const 0))
+ (global $global$10 (mut i32) (i32.const 0))
+ (global $global$11 (mut f64) (get_global $import$7))
+ (global $global$12 (mut f64) (get_global $import$8))
+ (global $global$13 (mut i32) (i32.const 0))
+ (global $global$14 (mut i32) (i32.const 0))
+ (global $global$15 (mut i32) (i32.const 0))
+ (global $global$16 (mut i32) (i32.const 0))
+ (global $global$17 (mut f64) (f64.const 0))
+ (global $global$18 (mut i32) (i32.const 0))
+ (global $global$19 (mut i32) (i32.const 0))
+ (global $global$20 (mut i32) (i32.const 0))
+ (global $global$21 (mut f64) (f64.const 0))
+ (global $global$22 (mut i32) (i32.const 0))
+ (global $global$23 (mut f64) (f64.const 0))
+ (export "setThrew" (func $setThrew))
+ (export "runPostSets" (func $runPostSets))
+ (export "establishStackSpace" (func $establishStackSpace))
+ (export "stackSave" (func $stackSave))
+ (export "stackRestore" (func $stackRestore))
+ (export "_fib" (func $_fib))
+ (export "stackAlloc" (func $stackAlloc))
+ (func $stackAlloc (type $1) (param $var$0 i32) (result i32)
+  (local $var$1 i32)
+  (block $label$0
+   (set_local $var$1
+    (get_global $global$3)
+   )
+   (set_global $global$3
+    (i32.add
+     (get_global $global$3)
+     (get_local $var$0)
+    )
+   )
+   (set_global $global$3
+    (i32.and
+     (i32.add
+      (get_global $global$3)
+      (i32.const 15)
+     )
+     (i32.const -16)
+    )
+   )
+   (return
+    (get_local $var$1)
+   )
+   (unreachable)
+  )
+  (unreachable)
+ )
+ (func $stackSave (type $2) (result i32)
+  (return
+   (get_global $global$3)
+  )
+ )
+ (func $stackRestore (type $3) (param $var$0 i32)
+  (set_global $global$3
+   (get_local $var$0)
+  )
+ )
+ (func $establishStackSpace (type $0) (param $var$0 i32) (param $var$1 i32)
+  (block $label$0
+   (set_global $global$3
+    (get_local $var$0)
+   )
+   (set_global $global$4
+    (get_local $var$1)
+   )
+  )
+ )
+ (func $setThrew (type $0) (param $var$0 i32) (param $var$1 i32)
+  (if
+   (i32.eq
+    (get_global $global$7)
+    (i32.const 0)
+   )
+   (block $label$0
+    (set_global $global$7
+     (get_local $var$0)
+    )
+    (set_global $global$8
+     (get_local $var$1)
+    )
+   )
+  )
+ )
+ (func $_fib (type $1) (param $var$0 i32) (result i32)
+  (local $var$1 i32)
+  (local $var$2 i32)
+  (local $var$3 i32)
+  (local $var$4 i32)
+  (local $var$5 i32)
+  (local $var$6 i32)
+  (local $var$7 i32)
+  (local $var$8 i32)
+  (local $var$9 i32)
+  (local $var$10 i32)
+  (local $var$11 i32)
+  ;;@ fib.c:8:0
+  (block $label$0
+   (set_local $var$11
+    (get_global $global$3)
+   )
+   ;;@ fib.c:3:0
+   (set_local $var$6
+    (i32.gt_s
+     (get_local $var$0)
+     (i32.const 0)
+    )
+   )
+   ;;@ fib.c:8:0
+   (if
+    ;;@ fib.c:3:0
+    (get_local $var$6)
+    (block $label$1
+     (set_local $var$1
+      (i32.const 0)
+     )
+     (set_local $var$5
+      (i32.const 1)
+     )
+     (set_local $var$8
+      (i32.const 0)
+     )
+    )
+    (block $label$2
+     (set_local $var$4
+      (i32.const 1)
+     )
+     ;;@ fib.c:8:0
+     (return
+      (get_local $var$4)
+     )
+    )
+   )
+   ;;@ fib.c:3:0
+   (loop $label$3
+    (block $label$4
+     ;;@ fib.c:4:0
+     (set_local $var$3
+      (i32.add
+       (get_local $var$5)
+       (get_local $var$1)
+      )
+     )
+     ;;@ fib.c:3:0
+     (set_local $var$9
+      (i32.add
+       (get_local $var$8)
+       (i32.const 1)
+      )
+     )
+     (set_local $var$7
+      (i32.eq
+       (get_local $var$9)
+       (get_local $var$0)
+      )
+     )
+     (if
+      (get_local $var$7)
+      (block $label$5
+       (set_local $var$4
+        (get_local $var$3)
+       )
+       (br $label$4)
+      )
+      (block $label$6
+       (set_local $var$2
+        (get_local $var$5)
+       )
+       (set_local $var$5
+        (get_local $var$3)
+       )
+       (set_local $var$8
+        (get_local $var$9)
+       )
+       (set_local $var$1
+        (get_local $var$2)
+       )
+      )
+     )
+     (br $label$3)
+    )
+   )
+   ;;@ fib.c:8:0
+   (return
+    (get_local $var$4)
+   )
+   (unreachable)
+   (unreachable)
+  )
+  (unreachable)
+ )
+ (func $runPostSets (type $4)
+  (local $var$0 i32)
+  (nop)
+ )
+ ;; custom section "sourceMappingURL", size 35
+)
+