1/*
2 * Generate definitions needed by assembly language modules.
3 * This code generates raw asm output which is post-processed
4 * to extract and format the required data.
5 */
6
7#include <linux/crypto.h>
8#include <linux/sched.h>
9#include <linux/signal.h>
10#include <linux/personality.h>
11#include <linux/suspend.h>
12#include <asm/ucontext.h>
13#include "sigframe.h"
14#include <asm/pgtable.h>
15#include <asm/fixmap.h>
16#include <asm/processor.h>
17#include <asm/thread_info.h>
18#include <asm/elf.h>
19
20#define DEFINE(sym, val) \
21        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
22
23#define BLANK() asm volatile("\n->" : : )
24
25#define OFFSET(sym, str, mem) \
26	DEFINE(sym, offsetof(struct str, mem));
27
28void foo(void);
29
30void foo(void)
31{
32	OFFSET(SIGCONTEXT_eax, sigcontext, eax);
33	OFFSET(SIGCONTEXT_ebx, sigcontext, ebx);
34	OFFSET(SIGCONTEXT_ecx, sigcontext, ecx);
35	OFFSET(SIGCONTEXT_edx, sigcontext, edx);
36	OFFSET(SIGCONTEXT_esi, sigcontext, esi);
37	OFFSET(SIGCONTEXT_edi, sigcontext, edi);
38	OFFSET(SIGCONTEXT_ebp, sigcontext, ebp);
39	OFFSET(SIGCONTEXT_esp, sigcontext, esp);
40	OFFSET(SIGCONTEXT_eip, sigcontext, eip);
41	BLANK();
42
43	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
44	OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
45	OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
46	OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
47	OFFSET(CPUINFO_hard_math, cpuinfo_x86, hard_math);
48	OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
49	OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
50	OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
51	BLANK();
52
53	OFFSET(TI_task, thread_info, task);
54	OFFSET(TI_exec_domain, thread_info, exec_domain);
55	OFFSET(TI_flags, thread_info, flags);
56	OFFSET(TI_status, thread_info, status);
57	OFFSET(TI_preempt_count, thread_info, preempt_count);
58	OFFSET(TI_addr_limit, thread_info, addr_limit);
59	OFFSET(TI_restart_block, thread_info, restart_block);
60	OFFSET(TI_sysenter_return, thread_info, sysenter_return);
61	BLANK();
62
63	OFFSET(GDS_size, Xgt_desc_struct, size);
64	OFFSET(GDS_address, Xgt_desc_struct, address);
65	OFFSET(GDS_pad, Xgt_desc_struct, pad);
66	BLANK();
67
68	OFFSET(PT_EBX, pt_regs, ebx);
69	OFFSET(PT_ECX, pt_regs, ecx);
70	OFFSET(PT_EDX, pt_regs, edx);
71	OFFSET(PT_ESI, pt_regs, esi);
72	OFFSET(PT_EDI, pt_regs, edi);
73	OFFSET(PT_EBP, pt_regs, ebp);
74	OFFSET(PT_EAX, pt_regs, eax);
75	OFFSET(PT_DS,  pt_regs, xds);
76	OFFSET(PT_ES,  pt_regs, xes);
77	OFFSET(PT_FS,  pt_regs, xfs);
78	OFFSET(PT_ORIG_EAX, pt_regs, orig_eax);
79	OFFSET(PT_EIP, pt_regs, eip);
80	OFFSET(PT_CS,  pt_regs, xcs);
81	OFFSET(PT_EFLAGS, pt_regs, eflags);
82	OFFSET(PT_OLDESP, pt_regs, esp);
83	OFFSET(PT_OLDSS,  pt_regs, xss);
84	BLANK();
85
86	OFFSET(EXEC_DOMAIN_handler, exec_domain, handler);
87	OFFSET(RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext);
88	BLANK();
89
90	OFFSET(pbe_address, pbe, address);
91	OFFSET(pbe_orig_address, pbe, orig_address);
92	OFFSET(pbe_next, pbe, next);
93
94	/* Offset from the sysenter stack to tss.esp0 */
95	DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, x86_tss.esp0) -
96		 sizeof(struct tss_struct));
97
98	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
99	DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
100	DEFINE(PTRS_PER_PTE, PTRS_PER_PTE);
101	DEFINE(PTRS_PER_PMD, PTRS_PER_PMD);
102	DEFINE(PTRS_PER_PGD, PTRS_PER_PGD);
103
104	DEFINE(VDSO_PRELINK_asm, VDSO_PRELINK);
105
106	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
107
108#ifdef CONFIG_PARAVIRT
109	BLANK();
110	OFFSET(PARAVIRT_enabled, paravirt_ops, paravirt_enabled);
111	OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable);
112	OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable);
113	OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit);
114	OFFSET(PARAVIRT_iret, paravirt_ops, iret);
115	OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0);
116#endif
117}
118