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authorAl Viro <viro@parcelfarce.linux.theplanet.co.uk>2005-05-05 16:15:25 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-05 16:36:35 -0700
commita31769ed3ee82198fd530cb1d79ee9c7f8eeb1d1 (patch)
treed512ffff086b47597e7bb1b431aa65353b113cc5 /arch/um/sys-x86_64
parent6bae32d395b532959703462c21248fbeb9894e95 (diff)
[PATCH] uml: cross-build support : kernel_offsets
The next group of helpers is a bit trickier - they want the constants similar to those in user-offsets.h, but we need target sc.h for it. So we can't put that into user-offsets (sc.h depends on it) and need the second generated header for that stuff (kernel-offsets.h. BFD... Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/sys-x86_64')
-rw-r--r--arch/um/sys-x86_64/kernel-offsets.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/um/sys-x86_64/kernel-offsets.c b/arch/um/sys-x86_64/kernel-offsets.c
new file mode 100644
index 00000000000..220e875cbe2
--- /dev/null
+++ b/arch/um/sys-x86_64/kernel-offsets.c
@@ -0,0 +1,24 @@
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <asm/page.h>
+
+#define DEFINE(sym, val) \
+ asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define DEFINE_STR1(x) #x
+#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " DEFINE_STR1(val) " " #val: : )
+
+#define BLANK() asm volatile("\n->" : : )
+
+#define OFFSET(sym, str, mem) \
+ DEFINE(sym, offsetof(struct str, mem));
+
+void foo(void)
+{
+#ifdef CONFIG_MODE_TT
+ OFFSET(TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid);
+#endif
+#include <common-offsets.h>
+}