patch-2.1.48 linux/arch/ppc/kernel/checks.c

• Lines: 57
• Date: Thu Jul 31 13:09:17 1997
• Orig file: v2.1.47/linux/arch/ppc/kernel/checks.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.47/linux/arch/ppc/kernel/checks.c linux/arch/ppc/kernel/checks.c
@@ -0,0 +1,56 @@
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/malloc.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/config.h>
+
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/smp_lock.h>
+
+/*
+ * Do various before compile checks of data structures
+ * -- Cort
+ */
+int main(void)
+{
+	int ret = 0;
+	
+	if ( sizeof(struct thread_struct) % 16 )
+	{
+		printf("Thread struct is not modulo 16 bytes: "
+			"%d bytes total, %d bytes off\n",
+			sizeof(struct thread_struct),
+			sizeof(struct thread_struct)%16);
+		ret = -1;
+	}
+
+	if ( sizeof(struct pt_regs) % 16 )
+	{
+		printf("pt_regs struct is not modulo 16 bytes: "
+			"%d bytes total, %d bytes off\n",
+			sizeof(struct pt_regs),
+			sizeof(struct pt_regs)%16);
+		ret = -1;
+		
+	}
+
+	printf("Task size        : %d bytes\n"
+	       "Tss size         : %d bytes\n"
+	       "pt_regs size     : %d bytes\n"
+	       "Kernel stack size: %d bytes\n",
+	       sizeof(struct task_struct), sizeof(struct thread_struct),
+	       sizeof(struct pt_regs),
+	       sizeof(union task_union) - sizeof(struct task_struct));
+	return ret;
+}