linux/arch/sparc/kernel/asm-offsets.c

61 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* This program is used to generate definitions needed by
* assembly language modules.
*
* We use the technique used in the OSF Mach kernel code:
* generate asm statements containing #defines,
* compile this file to assembler, and then extract the
* #defines from the assembly-language output.
*
* On sparc, thread_info data is static and TI_XXX offsets are computed by hand.
*/
#include <linux/sched.h>
#include <linux/mm_types.h>
// #include <linux/mm.h>
#include <linux/kbuild.h>
#include <asm/hibernate.h>
#ifdef CONFIG_SPARC32
int sparc32_foo(void)
{
DEFINE(AOFF_thread_fork_kpsr,
offsetof(struct thread_struct, fork_kpsr));
return 0;
}
#else
int sparc64_foo(void)
{
#ifdef CONFIG_HIBERNATION
BLANK();
OFFSET(SC_REG_FP, saved_context, fp);
OFFSET(SC_REG_CWP, saved_context, cwp);
OFFSET(SC_REG_WSTATE, saved_context, wstate);
OFFSET(SC_REG_TICK, saved_context, tick);
OFFSET(SC_REG_PSTATE, saved_context, pstate);
OFFSET(SC_REG_G4, saved_context, g4);
OFFSET(SC_REG_G5, saved_context, g5);
OFFSET(SC_REG_G6, saved_context, g6);
#endif
return 0;
}
#endif
int foo(void)
{
BLANK();
DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread));
BLANK();
DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context));
BLANK();
DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
/* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */
return 0;
}