asm-offsets.c (1429B)
1// SPDX-License-Identifier: GPL-2.0 2/* 3 * This program is used to generate definitions needed by 4 * assembly language modules. 5 * 6 * We use the technique used in the OSF Mach kernel code: 7 * generate asm statements containing #defines, 8 * compile this file to assembler, and then extract the 9 * #defines from the assembly-language output. 10 * 11 * On sparc, thread_info data is static and TI_XXX offsets are computed by hand. 12 */ 13 14#include <linux/sched.h> 15#include <linux/mm_types.h> 16// #include <linux/mm.h> 17#include <linux/kbuild.h> 18 19#include <asm/hibernate.h> 20 21#ifdef CONFIG_SPARC32 22int sparc32_foo(void) 23{ 24 DEFINE(AOFF_thread_fork_kpsr, 25 offsetof(struct thread_struct, fork_kpsr)); 26 return 0; 27} 28#else 29int sparc64_foo(void) 30{ 31#ifdef CONFIG_HIBERNATION 32 BLANK(); 33 OFFSET(SC_REG_FP, saved_context, fp); 34 OFFSET(SC_REG_CWP, saved_context, cwp); 35 OFFSET(SC_REG_WSTATE, saved_context, wstate); 36 37 OFFSET(SC_REG_TICK, saved_context, tick); 38 OFFSET(SC_REG_PSTATE, saved_context, pstate); 39 40 OFFSET(SC_REG_G4, saved_context, g4); 41 OFFSET(SC_REG_G5, saved_context, g5); 42 OFFSET(SC_REG_G6, saved_context, g6); 43#endif 44 return 0; 45} 46#endif 47 48int foo(void) 49{ 50 BLANK(); 51 DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread)); 52 BLANK(); 53 DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context)); 54 BLANK(); 55 DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); 56 57 /* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */ 58 return 0; 59} 60