xref: /openbmc/linux/arch/x86/kernel/asm-offsets_64.c (revision 96de0e252cedffad61b3cb5e05662c591898e69a)
1 /*
2  * Generate definitions needed by assembly language modules.
3  * This code generates raw asm output which is post-processed to extract
4  * and format the required data.
5  */
6 
7 #include <linux/crypto.h>
8 #include <linux/sched.h>
9 #include <linux/stddef.h>
10 #include <linux/errno.h>
11 #include <linux/hardirq.h>
12 #include <linux/suspend.h>
13 #include <asm/pda.h>
14 #include <asm/processor.h>
15 #include <asm/segment.h>
16 #include <asm/thread_info.h>
17 #include <asm/ia32.h>
18 
19 #define DEFINE(sym, val) \
20         asm volatile("\n->" #sym " %0 " #val : : "i" (val))
21 
22 #define BLANK() asm volatile("\n->" : : )
23 
24 #define __NO_STUBS 1
25 #undef __SYSCALL
26 #undef _ASM_X86_64_UNISTD_H_
27 #define __SYSCALL(nr, sym) [nr] = 1,
28 static char syscalls[] = {
29 #include <asm/unistd.h>
30 };
31 
32 int main(void)
33 {
34 #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
35 	ENTRY(state);
36 	ENTRY(flags);
37 	ENTRY(thread);
38 	ENTRY(pid);
39 	BLANK();
40 #undef ENTRY
41 #define ENTRY(entry) DEFINE(threadinfo_ ## entry, offsetof(struct thread_info, entry))
42 	ENTRY(flags);
43 	ENTRY(addr_limit);
44 	ENTRY(preempt_count);
45 	ENTRY(status);
46 	BLANK();
47 #undef ENTRY
48 #define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
49 	ENTRY(kernelstack);
50 	ENTRY(oldrsp);
51 	ENTRY(pcurrent);
52 	ENTRY(irqcount);
53 	ENTRY(cpunumber);
54 	ENTRY(irqstackptr);
55 	ENTRY(data_offset);
56 	BLANK();
57 #undef ENTRY
58 #ifdef CONFIG_IA32_EMULATION
59 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
60 	ENTRY(eax);
61 	ENTRY(ebx);
62 	ENTRY(ecx);
63 	ENTRY(edx);
64 	ENTRY(esi);
65 	ENTRY(edi);
66 	ENTRY(ebp);
67 	ENTRY(esp);
68 	ENTRY(eip);
69 	BLANK();
70 #undef ENTRY
71 	DEFINE(IA32_RT_SIGFRAME_sigcontext,
72 	       offsetof (struct rt_sigframe32, uc.uc_mcontext));
73 	BLANK();
74 #endif
75 	DEFINE(pbe_address, offsetof(struct pbe, address));
76 	DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
77 	DEFINE(pbe_next, offsetof(struct pbe, next));
78 	BLANK();
79 	DEFINE(TSS_ist, offsetof(struct tss_struct, ist));
80 	BLANK();
81 	DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
82 	BLANK();
83 	DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
84 	return 0;
85 }
86