kernel-ark/arch/s390/kernel/asm-offsets.c
Roman Zippel f7e4217b00 rename thread_info to stack
This finally renames the thread_info field in task structure to stack, so that
the assumptions about this field are gone and archs have more freedom about
placing the thread_info structure.

Nonbroken archs which have a proper thread pointer can do the access to both
current thread and task structure via a single pointer.

It'll allow for a few more cleanups of the fork code, from which e.g.  ia64
could benefit.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
[akpm@linux-foundation.org: build fix]
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Andi Kleen <ak@muc.de>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:56 -07:00

49 lines
1.9 KiB
C

/*
* Generate definitions needed by assembly language modules.
* This code generates raw asm output which is post-processed to extract
* and format the required data.
*/
#include <linux/sched.h>
/* Use marker if you need to separate the values later */
#define DEFINE(sym, val, marker) \
asm volatile("\n->" #sym " %0 " #val " " #marker : : "i" (val))
#define BLANK() asm volatile("\n->" : : )
int main(void)
{
DEFINE(__THREAD_info, offsetof(struct task_struct, stack),);
DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp),);
DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info),);
DEFINE(__THREAD_mm_segment,
offsetof(struct task_struct, thread.mm_segment),);
BLANK();
DEFINE(__TASK_pid, offsetof(struct task_struct, pid),);
BLANK();
DEFINE(__PER_atmid, offsetof(per_struct, lowcore.words.perc_atmid),);
DEFINE(__PER_address, offsetof(per_struct, lowcore.words.address),);
DEFINE(__PER_access_id, offsetof(per_struct, lowcore.words.access_id),);
BLANK();
DEFINE(__TI_task, offsetof(struct thread_info, task),);
DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain),);
DEFINE(__TI_flags, offsetof(struct thread_info, flags),);
DEFINE(__TI_cpu, offsetof(struct thread_info, cpu),);
DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count),);
BLANK();
DEFINE(__PT_ARGS, offsetof(struct pt_regs, args),);
DEFINE(__PT_PSW, offsetof(struct pt_regs, psw),);
DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs),);
DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2),);
DEFINE(__PT_ILC, offsetof(struct pt_regs, ilc),);
DEFINE(__PT_TRAP, offsetof(struct pt_regs, trap),);
DEFINE(__PT_SIZE, sizeof(struct pt_regs),);
BLANK();
DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain),);
DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs),);
DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1),);
return 0;
}