| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 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 | } |