patch-2.3.43 linux/arch/ia64/tools/print_offsets.c

• Lines: 110
• Date: Sun Feb 6 18:42:40 2000
• Orig file: v2.3.42/linux/arch/ia64/tools/print_offsets.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.42/linux/arch/ia64/tools/print_offsets.c linux/arch/ia64/tools/print_offsets.c
@@ -0,0 +1,109 @@
+/*
+ * Utility to generate asm-ia64/offsets.h.
+ *
+ * Copyright (C) 1999-2000 Hewlett-Packard Co
+ * Copyright (C) 1999-2000 David Mosberger-Tang <davidm@hpl.hp.com>
+ *
+ * Note that this file has dual use: when building the kernel
+ * natively, the file is translated into a binary and executed.  When
+ * building the kernel in a cross-development environment, this file
+ * gets translated into an assembly file which, in turn, is processed
+ * by awk to generate offsets.h.  So if you make any changes to this
+ * file, be sure to verify that the awk procedure still works (see
+ * prin_offsets.awk).
+ */
+#include <linux/sched.h>
+
+#include <asm-ia64/processor.h>
+#include <asm-ia64/ptrace.h>
+#include <asm-ia64/siginfo.h>
+#include <asm-ia64/sigcontext.h>
+
+#ifdef offsetof
+# undef offsetof
+#endif
+
+/*
+ * We _can't_ include the host's standard header file, as those are in
+ *  potential conflict with the what the Linux kernel declares for the
+ *  target system.
+ */
+extern int printf (const char *, ...);
+
+#define offsetof(type,field)	((char *) &((type *) 0)->field - (char *) 0)
+
+struct
+  {
+    const char name[256];
+    unsigned long value;
+  }
+tab[] =
+  {
+    { "IA64_TASK_SIZE",			sizeof (struct task_struct) },
+    { "IA64_PT_REGS_SIZE",		sizeof (struct pt_regs) },
+    { "IA64_SWITCH_STACK_SIZE",		sizeof (struct switch_stack) },
+    { "IA64_SIGINFO_SIZE",		sizeof (struct siginfo) },
+    { "", 0 },			/* spacer */
+    { "IA64_TASK_FLAGS_OFFSET",		offsetof (struct task_struct, flags) },
+    { "IA64_TASK_SIGPENDING_OFFSET",	offsetof (struct task_struct, sigpending) },
+    { "IA64_TASK_NEED_RESCHED_OFFSET",	offsetof (struct task_struct, need_resched) },
+    { "IA64_TASK_THREAD_OFFSET",	offsetof (struct task_struct, thread) },
+    { "IA64_TASK_THREAD_KSP_OFFSET",	offsetof (struct task_struct, thread.ksp) },
+    { "IA64_TASK_PID_OFFSET",		offsetof (struct task_struct, pid) },
+    { "IA64_TASK_MM_OFFSET",		offsetof (struct task_struct, mm) },
+    { "IA64_PT_REGS_CR_IPSR_OFFSET",	offsetof (struct pt_regs, cr_ipsr) },
+    { "IA64_PT_REGS_R12_OFFSET",	offsetof (struct pt_regs, r12) },
+    { "IA64_PT_REGS_R8_OFFSET",		offsetof (struct pt_regs, r8) },
+    { "IA64_PT_REGS_R16_OFFSET",	offsetof (struct pt_regs, r16) },
+    { "IA64_SWITCH_STACK_B0_OFFSET",	offsetof (struct switch_stack, b0) },
+    { "IA64_SWITCH_STACK_CALLER_UNAT_OFFSET", offsetof (struct switch_stack, caller_unat) },
+    { "IA64_SIGCONTEXT_AR_BSP_OFFSET",	offsetof (struct sigcontext, sc_ar_bsp) },
+    { "IA64_SIGCONTEXT_AR_RNAT_OFFSET",	offsetof (struct sigcontext, sc_ar_rnat) },
+    { "IA64_SIGCONTEXT_FLAGS_OFFSET",	offsetof (struct sigcontext, sc_flags) },
+    { "IA64_SIGCONTEXT_CFM_OFFSET",	offsetof (struct sigcontext, sc_cfm) },
+    { "IA64_SIGCONTEXT_FR6_OFFSET",	offsetof (struct sigcontext, sc_fr[6]) },
+};
+
+static const char *tabs = "\t\t\t\t\t\t\t\t\t\t";
+
+int
+main (int argc, char **argv)
+{
+  const char *space;
+  int i, num_tabs;
+  size_t len;
+
+  printf ("#ifndef _ASM_IA64_OFFSETS_H\n");
+  printf ("#define _ASM_IA64_OFFSETS_H\n\n");
+
+  printf ("/*\n * DO NOT MODIFY\n *\n * This file was generated by "
+	  "arch/ia64/tools/print_offsets.\n *\n */\n\n");
+
+  /* This is stretching things a bit, but entry.S needs the bit number
+     for PF_PTRACED and it can't include <linux/sched.h> so this seems
+     like a reasonably solution.  At least the code won't break shoudl
+     PF_PTRACED ever change.  */
+  printf ("#define PF_PTRACED_BIT\t\t\t%u\n\n", ffs (PF_PTRACED) - 1);
+
+  for (i = 0; i < sizeof (tab) / sizeof (tab[0]); ++i)
+    {
+      if (tab[i].name[0] == '\0')
+	printf ("\n");
+      else
+	{
+	  len = strlen (tab[i].name);
+
+	  num_tabs = (40 - len) / 8;
+	  if (num_tabs <= 0)
+	    space = " ";
+	  else
+	    space = strchr(tabs, '\0') - (40 - len) / 8;
+
+	  printf ("#define %s%s%lu\t/* 0x%lx */\n",
+		  tab[i].name, space, tab[i].value, tab[i].value);
+	}
+    }
+
+  printf ("\n#endif /* _ASM_IA64_OFFSETS_H */\n");
+  return 0;
+}