Merge branch 'devel'

[palacios-OLD.git] / kitten / arch / x86_64 / kernel / asm-offsets.c

diff --git a/kitten/arch/x86_64/kernel/asm-offsets.c b/kitten/arch/x86_64/kernel/asm-offsets.c
new file mode 100644 (file)
index 0000000..c159f89
--- /dev/null
+++ b/kitten/arch/x86_64/kernel/asm-offsets.c
@@ -0,0 +1,80 @@
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ */
+
+#if 0
+#include <linux/sched.h> 
+#include <linux/stddef.h>
+#include <linux/errno.h> 
+#include <linux/hardirq.h>
+#include <linux/suspend.h>
+#include <asm/pda.h>
+#include <asm/processor.h>
+#include <asm/segment.h>
+#include <asm/thread_info.h>
+#endif
+
+#include <lwk/task.h>
+#include <arch/pda.h>
+
+#define DEFINE(sym, val) \
+        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+/**
+ * This is used to automatically count the number of system calls.
+ * A table is generated with one entry for each system call defined in
+ * arch/unistd.h, which contains the list of system calls.
+ */
+#define __NO_STUBS 1
+#undef __SYSCALL
+#undef _ARCH_X86_64_UNISTD_H
+#define __SYSCALL(nr, sym) [nr] = 1,
+static char syscalls[] = {
+#include <arch/unistd.h>
+};
+
+int main(void)
+{
+#define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
+#if 0
+       ENTRY(state);
+       ENTRY(flags); 
+       ENTRY(thread); 
+#endif
+       ENTRY(id);
+       BLANK();
+#undef ENTRY
+#define ENTRY(entry) DEFINE(tsk_arch_ ## entry, offsetof(struct task_struct, arch) + offsetof(struct arch_task, entry))
+       ENTRY(flags);
+       ENTRY(addr_limit);
+       BLANK();
+#undef ENTRY
+#define ENTRY(entry) DEFINE(tsk_arch_ ## entry, offsetof(struct task_struct, arch) + offsetof(struct arch_task, thread) + offsetof(struct thread_struct, entry))
+       ENTRY(rsp);
+       BLANK();
+#undef ENTRY
+#define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
+       ENTRY(kernelstack); 
+       ENTRY(oldrsp); 
+       ENTRY(pcurrent); 
+       ENTRY(irqcount);
+       ENTRY(cpunumber);
+       ENTRY(irqstackptr);
+       ENTRY(data_offset);
+       BLANK();
+#undef ENTRY
+#if 0
+       DEFINE(pbe_address, offsetof(struct pbe, address));
+       DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
+       DEFINE(pbe_next, offsetof(struct pbe, next));
+       BLANK();
+       DEFINE(TSS_ist, offsetof(struct tss_struct, ist));
+#endif
+       BLANK();
+       DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
+       return 0;
+}