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authorJeff Dike <jdike@addtoit.com>2007-05-06 14:51:09 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 12:13:01 -0700
commit24fa6c0832f4513ac897082d7d803970a40cc1b0 (patch)
tree261c0b7612f74b703ce88efb7dd22548779e1399 /arch/um
parent4ff83ce1114827f707b7f1f4f2e5f69de9df94ac (diff)
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uml: move remaining useful contents of user_util.h
Rescue the useful contents of the soon-to-be-gone user-util.h. pty.c now gets ptsname from stdlib.h like it should have always done. CATCH_EINTR is now in os.h, although perhaps all usage should be under os-Linux at some point. get_pty is also in os.h. This patch restores the old definition of ARRAY_SIZE in user.h. This file is included only in userspace files, so there will be no conflict with the kernel's new ARRAY_SIZE. The copy of the kernel's ARRAY_SIZE and associated infrastructure is now gone. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/drivers/pty.c1
-rw-r--r--arch/um/include/os.h6
-rw-r--r--arch/um/include/user.h19
-rw-r--r--arch/um/include/user_util.h18
-rw-r--r--arch/um/os-Linux/sys-i386/tls.c1
5 files changed, 16 insertions, 29 deletions
diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c
index 829a5ec..aa311af 100644
--- a/arch/um/drivers/pty.c
+++ b/arch/um/drivers/pty.c
@@ -4,6 +4,7 @@
*/
#include <stdio.h>
+#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 22666b4..394adcd 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -16,6 +16,8 @@
#include "sysdep/tls.h"
#include "sysdep/archsetjmp.h"
+#define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR))
+
#define OS_TYPE_FILE 1
#define OS_TYPE_DIR 2
#define OS_TYPE_SYMLINK 3
@@ -341,6 +343,10 @@ extern void maybe_sigio_broken(int fd, int read);
extern void sig_handler_common_skas(int sig, void *sc_ptr);
extern void user_signal(int sig, union uml_pt_regs *regs, int pid);
+/* sys-x86_64/prctl.c */
extern int os_arch_prctl(int pid, int code, unsigned long *addr);
+/* tty.c */
+int get_pty(void);
+
#endif
diff --git a/arch/um/include/user.h b/arch/um/include/user.h
index acadce3..a6da626 100644
--- a/arch/um/include/user.h
+++ b/arch/um/include/user.h
@@ -6,6 +6,14 @@
#ifndef __USER_H__
#define __USER_H__
+/*
+ * The usual definition - copied here because the kernel provides its own,
+ * fancier, type-safe, definition. Using that one would require
+ * copying too much infrastructure for my taste, so userspace files
+ * get less checking than kernel files.
+ */
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
extern void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
extern int printk(const char *fmt, ...)
@@ -18,14 +26,3 @@ extern unsigned long strlcpy(char *, const char *, unsigned long);
extern unsigned long strlcat(char *, const char *, unsigned long);
#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h
index f04776e..7fa5c68 100644
--- a/arch/um/include/user_util.h
+++ b/arch/um/include/user_util.h
@@ -8,31 +8,13 @@
#include "sysdep/ptrace.h"
-/* Copied from kernel.h and compiler-gcc.h */
-
-/* Force a compilation error if condition is true, but also produce a
- result (of value 0 and type size_t), so the expression can be used
- e.g. in a structure initializer (or where-ever else comma expressions
- aren't permitted). */
-#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
-
-/* &a[0] degrades to a pointer: a different type from an array */
-#define __must_be_array(a) \
- BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
-
-#define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR))
-
extern int mode_tt;
extern int grantpt(int __fd);
extern int unlockpt(int __fd);
-extern char *ptsname(int __fd);
extern void *add_signal_handler(int sig, void (*handler)(int));
extern void input_cb(void (*proc)(void *), void *arg, int arg_len);
-extern int get_pty(void);
extern int switcheroo(int fd, int prot, void *from, void *to, int size);
extern void do_exec(int old_pid, int new_pid);
extern void tracer_panic(char *msg, ...)
diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-i386/tls.c
index 2565320..8ba1324 100644
--- a/arch/um/os-Linux/sys-i386/tls.c
+++ b/arch/um/os-Linux/sys-i386/tls.c
@@ -5,6 +5,7 @@
#include <unistd.h>
#include "sysdep/tls.h"
+#include "user.h"
#include "user_util.h"
/* Checks whether host supports TLS, and sets *tls_min according to the value