From: Hans-Peter Nilsson <hp@axis.com>
Date: Sun, 20 Nov 2005 14:52:36 +0000 (+0000)
Subject: 	cris/traps.c (TARGET_O_RDONLY, TARGET_O_WRONLY): Define.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8b9b39f44acae15c55a487460d779a7068c27bb4;p=binutils-gdb.git

	cris/traps.c (TARGET_O_RDONLY, TARGET_O_WRONLY): Define.
	(open_map): Use TARGET_O_ACCMODE, TARGET_O_RDONLY and
	TARGET_O_WRONLY.
	(cris_break_13_handler) <case TARGET_SYS_fcntl>: Add support for
	F_GETFL on fd 0, 1 and 2.
---

diff --git a/sim/ChangeLog b/sim/ChangeLog
index e552e10aaaf..4ebe61efcc0 100644
--- a/sim/ChangeLog
+++ b/sim/ChangeLog
@@ -1,3 +1,11 @@
+2005-11-20  Hans-Peter Nilsson  <hp@axis.com>
+
+	cris/traps.c (TARGET_O_RDONLY, TARGET_O_WRONLY): Define.
+	(open_map): Use TARGET_O_ACCMODE, TARGET_O_RDONLY and
+	TARGET_O_WRONLY.
+	(cris_break_13_handler) <case TARGET_SYS_fcntl>: Add support for
+	F_GETFL on fd 0, 1 and 2.
+
 2005-11-17  Hans-Peter Nilsson  <hp@axis.com>
 
 	* cris/sim-main.h (struct _sim_cpu): New members last_syscall,
diff --git a/sim/cris/traps.c b/sim/cris/traps.c
index 607f72c6345..48fe6c541b9 100644
--- a/sim/cris/traps.c
+++ b/sim/cris/traps.c
@@ -664,18 +664,22 @@ static const CB_TARGET_DEFS_MAP errno_map[] =
    installation and removing synonyms and unnecessary items.  Don't
    forget the end-marker.  */
 
-/* This one we treat specially, as it's used in the fcntl syscall.  */
-#define TARGET_O_ACCMODE 3
+/* These we treat specially, as they're used in the fcntl F_GETFL
+   syscall.  For consistency, open_map is also manually edited to use
+   these macros.  */
+#define TARGET_O_ACCMODE 0x3
+#define TARGET_O_RDONLY 0x0
+#define TARGET_O_WRONLY 0x1
 
 static const CB_TARGET_DEFS_MAP open_map[] = {
 #ifdef O_ACCMODE
-  { O_ACCMODE, 0x3 },
+  { O_ACCMODE, TARGET_O_ACCMODE },
 #endif
 #ifdef O_RDONLY
-  { O_RDONLY, 0x0 },
+  { O_RDONLY, TARGET_O_RDONLY },
 #endif
 #ifdef O_WRONLY
-  { O_WRONLY, 0x1 },
+  { O_WRONLY, TARGET_O_WRONLY },
 #endif
 #ifdef O_RDWR
   { O_RDWR, 0x2 },
@@ -1429,9 +1433,24 @@ cris_break_13_handler (SIM_CPU *current_cpu, USI callnum, USI arg1,
 		  retval = current_cpu->last_open_flags & TARGET_O_ACCMODE;
 		  break;
 		}
+	      else if (arg1 == 0)
+		{
+		  /* Because we can't freopen fd:s 0, 1, 2 to mean
+		     something else than stdin, stdout and stderr
+		     (sim/common/syscall.c:cb_syscall special cases fd
+		     0, 1 and 2), we know what flags that we can
+		     sanely return for these fd:s.  */
+		  retval = TARGET_O_RDONLY;
+		  break;
+		}
+	      else if (arg1 == 1 || arg1 == 2)
+		{
+		  retval = TARGET_O_WRONLY;
+		  break;
+		}
 	      /* FALLTHROUGH */
-	      /* Abort for all other cases.  */
 	    default:
+	      /* Abort for all other cases.  */
 	      sim_io_eprintf (sd, "Unimplemented %s syscall "
 			      "(fd: 0x%lx: cmd: 0x%lx arg: 0x%lx)\n",
 			      callnum == TARGET_SYS_fcntl