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authorAndreas Schwab <schwab@suse.de>2002-12-21 19:37:26 +0000
committerAndreas Schwab <schwab@suse.de>2002-12-21 19:37:26 +0000
commit257757f8b032bd2913db107b7bbfa76cbce6f9d1 (patch)
treedd135dd3a88f8342406d5a2fd7d3a661b0f74086 /sysdeps/unix/sysv/linux/m68k
parent1332e84802b4dd0018655411b112999eccaf12c4 (diff)
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*** empty log message ***
2002-12-21  Andreas Schwab  <schwab@suse.de>

	* sysdeps/unix/sysv/linux/m68k/sysdep.h (INTERNAL_SYSCALL): Define.
	(INLINE_SYSCALL): Use it.
	(INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): Define.

	* sysdeps/unix/sysv/linux/m68k/getpagesize.c: Use INTERNAL_SYSCALL.
	* sysdeps/unix/sysv/linux/m68k/brk.c: Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/sysdep.h27
1 files changed, 21 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h
index 1247cc49f2..005e60ffe1 100644
--- a/sysdeps/unix/sysv/linux/m68k/sysdep.h
+++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h
@@ -163,7 +163,21 @@ SYSCALL_ERROR_LABEL:							      \
 /* Define a macro which expands into the inline wrapper code for a system
    call.  */
 #undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...)		\
+#define INLINE_SYSCALL(name, nr, args...)				\
+  ({ unsigned int _sys_result = INTERNAL_SYSCALL (name, nr, args);	\
+     if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result), 0))	\
+       {								\
+	 __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result));		\
+	 _sys_result = (unsigned int) -1;				\
+       }								\
+     (int) _sys_result; })
+
+/* Define a macro which expands inline into the wrapper code for a system
+   call.  This use is for internal calls that do not need to handle errors
+   normally.  It will never touch errno.  This returns just what the kernel
+   gave back.  */
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, nr, args...)		\
   ({ unsigned int _sys_result;				\
      {							\
        LOAD_ARGS_##nr (args)				\
@@ -174,13 +188,14 @@ SYSCALL_ERROR_LABEL:							      \
 		     : "memory");			\
        _sys_result = _d0;				\
      }							\
-     if (_sys_result >= (unsigned int) -4095)		\
-       {						\
-	 __set_errno (-_sys_result);			\
-	 _sys_result = (unsigned int) -1;		\
-       }						\
      (int) _sys_result; })
 
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val)	((unsigned int) (val) >= -4095U)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val)	(-(val))
+
 #define LOAD_ARGS_0()
 #define ASM_ARGS_0
 #define LOAD_ARGS_1(a1)				\