1 // SPDX-License-Identifier: GPL-2.0 2 #ifndef __LINUX_KBUILD_H 3 # error "Please do not build this file directly, build asm-offsets.c instead" 4 #endif 5 6 #include <asm/ucontext.h> 7 8 #define __SYSCALL_I386(nr, sym, qual) [nr] = 1, 9 static char syscalls[] = { 10 #include <asm/syscalls_32.h> 11 }; 12 13 /* workaround for a warning with -Wmissing-prototypes */ 14 void foo(void); 15 16 void foo(void) 17 { 18 OFFSET(CPUINFO_x86, cpuinfo_x86, x86); 19 OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor); 20 OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model); 21 OFFSET(CPUINFO_x86_stepping, cpuinfo_x86, x86_stepping); 22 OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level); 23 OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability); 24 OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id); 25 BLANK(); 26 27 OFFSET(PT_EBX, pt_regs, bx); 28 OFFSET(PT_ECX, pt_regs, cx); 29 OFFSET(PT_EDX, pt_regs, dx); 30 OFFSET(PT_ESI, pt_regs, si); 31 OFFSET(PT_EDI, pt_regs, di); 32 OFFSET(PT_EBP, pt_regs, bp); 33 OFFSET(PT_EAX, pt_regs, ax); 34 OFFSET(PT_DS, pt_regs, ds); 35 OFFSET(PT_ES, pt_regs, es); 36 OFFSET(PT_FS, pt_regs, fs); 37 OFFSET(PT_GS, pt_regs, gs); 38 OFFSET(PT_ORIG_EAX, pt_regs, orig_ax); 39 OFFSET(PT_EIP, pt_regs, ip); 40 OFFSET(PT_CS, pt_regs, cs); 41 OFFSET(PT_EFLAGS, pt_regs, flags); 42 OFFSET(PT_OLDESP, pt_regs, sp); 43 OFFSET(PT_OLDSS, pt_regs, ss); 44 BLANK(); 45 46 OFFSET(saved_context_gdt_desc, saved_context, gdt_desc); 47 BLANK(); 48 49 /* 50 * Offset from the entry stack to task stack stored in TSS. Kernel entry 51 * happens on the per-cpu entry-stack, and the asm code switches to the 52 * task-stack pointer stored in x86_tss.sp1, which is a copy of 53 * task->thread.sp0 where entry code can find it. 54 */ 55 DEFINE(TSS_entry2task_stack, 56 offsetof(struct cpu_entry_area, tss.x86_tss.sp1) - 57 offsetofend(struct cpu_entry_area, entry_stack_page.stack)); 58 59 #ifdef CONFIG_STACKPROTECTOR 60 BLANK(); 61 OFFSET(stack_canary_offset, stack_canary, canary); 62 #endif 63 64 BLANK(); 65 DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); 66 DEFINE(NR_syscalls, sizeof(syscalls)); 67 } 68