Don't check target is running in remote_target::mourn_inferior

[deliverable/binutils-gdb.git] / bfd / wasm-module.c

diff --git a/bfd/wasm-module.c b/bfd/wasm-module.c
index 6806e0f81d9c3c6205949b2fe0a527dbcb91800d..06a964c12df1738206febba3af7dd67ee82bb722 100644 (file)
--- a/bfd/wasm-module.c
+++ b/bfd/wasm-module.c
@@ -1,5 +1,5 @@
 /* BFD back-end for WebAssembly modules.
-   Copyright (C) 2017-2018 Free Software Foundation, Inc.
+   Copyright (C) 2017-2020 Free Software Foundation, Inc.
 
    Based on srec.c, mmo.c, and binary.c
 
@@ -28,9 +28,7 @@
 #include "sysdep.h"
 #include "alloca-conf.h"
 #include "bfd.h"
-#include "sysdep.h"
 #include <limits.h>
-#include "bfd_stdint.h"
 #include "libiberty.h"
 #include "libbfd.h"
 #include "wasm-module.h"
@@ -113,18 +111,28 @@ wasm_read_leb128 (bfd *             abfd,
   unsigned int num_read = 0;
   unsigned int shift = 0;
   unsigned char byte = 0;
-  bfd_boolean success = FALSE;
+  int status = 1;
 
   while (bfd_bread (&byte, 1, abfd) == 1)
     {
       num_read++;
 
-      result |= ((bfd_vma) (byte & 0x7f)) << shift;
+      if (shift < sizeof (result) * 8)
+       {
+         result |= ((bfd_vma) (byte & 0x7f)) << shift;
+         if ((result >> shift) != (byte & 0x7f))
+           /* Overflow.  */
+           status |= 2;
+         shift += 7;
+       }
+      else if ((byte & 0x7f) != 0)
+       status |= 2;
 
-      shift += 7;
       if ((byte & 0x80) == 0)
        {
-         success = TRUE;
+         status &= ~1;
+         if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
+           result |= -((bfd_vma) 1 << shift);
          break;
        }
     }
@@ -132,10 +140,7 @@ wasm_read_leb128 (bfd *              abfd,
   if (length_return != NULL)
     *length_return = num_read;
   if (error_return != NULL)
-    *error_return = ! success;
-
-  if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
-    result |= -((bfd_vma) 1 << shift);
+    *error_return = status != 0;
 
   return result;
 }