Subzero, Wasm: Link and run torture tests; bug fixes.

runtime/wasm-runtime.c

Index: runtime/wasm-runtime.c
diff --git a/runtime/wasm-runtime.c b/runtime/wasm-runtime.c
index 0ffb6ca9d013ddb361a92dbc42c6444a0ea18537..a7ce49b6d6227c42a3e9863116acf6f5f947031c 100644
--- a/runtime/wasm-runtime.c
+++ b/runtime/wasm-runtime.c
@@ -13,9 +13,12 @@
 //===----------------------------------------------------------------------===//
 
 #include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <unistd.h>
 
 extern char WASM_MEMORY[];
@@ -27,6 +30,11 @@ void env$$abort() {
 
 void env$$_abort() { env$$abort(); }
 
+void env$$exit(int Status) {
+  exit(Status);
+}
+void env$$_exit(int Status) { env$$exit(Status); }
+
 #define UNIMPLEMENTED(f)                                                       \
   void env$$##f() {                                                            \
     fprintf(stderr, "Unimplemented: " #f "\n");                                \
@@ -34,13 +42,36 @@ void env$$_abort() { env$$abort(); }
   }
 
 UNIMPLEMENTED(sbrk)
+UNIMPLEMENTED(setjmp)
+UNIMPLEMENTED(longjmp)
+UNIMPLEMENTED(__assert_fail)
+UNIMPLEMENTED(__builtin_malloc)
+UNIMPLEMENTED(__builtin_apply)
+UNIMPLEMENTED(__builtin_apply_args)
 UNIMPLEMENTED(pthread_cleanup_push)
 UNIMPLEMENTED(pthread_cleanup_pop)
 UNIMPLEMENTED(pthread_self)
+UNIMPLEMENTED(abs)
+UNIMPLEMENTED(__floatditf)
+UNIMPLEMENTED(__floatsitf)
+UNIMPLEMENTED(__fixtfdi)
+UNIMPLEMENTED(__fixtfsi)
+UNIMPLEMENTED(__fixsfti)
+UNIMPLEMENTED(__netf2)
+UNIMPLEMENTED(__getf2)
+UNIMPLEMENTED(__eqtf2)
+UNIMPLEMENTED(__lttf2)
+UNIMPLEMENTED(__addtf3)
+UNIMPLEMENTED(__subtf3)
+UNIMPLEMENTED(__divtf3)
+UNIMPLEMENTED(__multf3)
+UNIMPLEMENTED(__multi3)
 UNIMPLEMENTED(__lock)
 UNIMPLEMENTED(__unlock)
 UNIMPLEMENTED(__syscall6)
+UNIMPLEMENTED(__syscall20)
 UNIMPLEMENTED(__syscall140)
+UNIMPLEMENTED(__syscall192)
 
 void *wasmPtr(int Index) {
   // TODO (eholk): get the mask from the WASM file.
@@ -50,12 +81,12 @@ void *wasmPtr(int Index) {
   return WASM_MEMORY + Index;
 }
 
-extern int __szwasm_main(int, char **);
+extern int __szwasm_main(int, const char **);
 
 #define WASM_REF(Type, Index) ((Type *)wasmPtr(Index))
 #define WASM_DEREF(Type, Index) (*WASM_REF(Type, Index))
 
-int main(int argc, char **argv) { return __szwasm_main(argc, argv); }
+int main(int argc, const char **argv) { return __szwasm_main(argc, argv); }
 
 /// sys_write
 int env$$__syscall4(int Which, int VarArgs) {
@@ -66,6 +97,18 @@ int env$$__syscall4(int Which, int VarArgs) {
   return write(Fd, WASM_REF(char *, Buffer), Length);
 }
 
+/// sys_open
+int env$$__syscall5(int Which, int VarArgs) {
+  int WasmPath = WASM_DEREF(int, VarArgs);
+  int Flags = WASM_DEREF(int, VarArgs + 4);
+  int Mode = WASM_DEREF(int, VarArgs + 8);
+  const char *Path = WASM_REF(char, WasmPath);
+
+  fprintf(stderr, "sys_open(%s, %d, %d)\n", Path, Flags, Mode);
+
+  return open(Path, Flags, Mode);
+}
+
 /// sys_ioctl
 int env$$__syscall54(int A, int B) {
   int Fd = WASM_DEREF(int, B + 0 * sizeof(int));