Fix uppercase in trunc<mode><pmov_dst_3>2.

[gcc.git] / libbacktrace / posix.c

diff --git a/libbacktrace/posix.c b/libbacktrace/posix.c
index 4d6c852b7813feb580e191f980ca032dc457c814..a2c88dd8e4ad3c0e7409ada5d0f233815cc372cd 100644 (file)
--- a/libbacktrace/posix.c
+++ b/libbacktrace/posix.c
@@ -1,5 +1,5 @@
 /* posix.c -- POSIX file I/O routines for the backtrace library.
-   Copyright (C) 2012 Free Software Foundation, Inc.
+   Copyright (C) 2012-2020 Free Software Foundation, Inc.
    Written by Ian Lance Taylor, Google.
 
 Redistribution and use in source and binary forms, with or without
@@ -7,13 +7,13 @@ modification, are permitted provided that the following conditions are
 met:
 
     (1) Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer. 
+    notice, this list of conditions and the following disclaimer.
 
     (2) Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
-    distribution.  
-    
+    distribution.
+
     (3) The name of the author may not be used to
     endorse or promote products derived from this software without
     specific prior written permission.
@@ -64,10 +64,14 @@ backtrace_open (const char *filename, backtrace_error_callback error_callback,
   if (does_not_exist != NULL)
     *does_not_exist = 0;
 
-  descriptor = open (filename, O_RDONLY | O_BINARY | O_CLOEXEC);
+  descriptor = open (filename, (int) (O_RDONLY | O_BINARY | O_CLOEXEC));
   if (descriptor < 0)
     {
-      if (does_not_exist != NULL && errno == ENOENT)
+      /* If DOES_NOT_EXIST is not NULL, then don't call ERROR_CALLBACK
+        if the file does not exist.  We treat lacking permission to
+        open the file as the file not existing; this case arises when
+        running the libgo syscall package tests as root.  */
+      if (does_not_exist != NULL && (errno == ENOENT || errno == EACCES))
        *does_not_exist = 1;
       else
        error_callback (data, filename, errno);