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 #include <asm/bootparam.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
28 #define __NO_STUBS 1
29 #undef __SYSCALL
30 #undef _ASM_X86_64_UNISTD_H_
31 #define __SYSCALL(nr, sym) [nr] = 1,
32 static char syscalls[] = {
33 #include <asm/unistd.h>
34 };
35
36 int main(void)
37 {
38 #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry))
39 ENTRY(state);
40 ENTRY(flags);
41 ENTRY(pid);
42 BLANK();
43 #undef ENTRY
44 #define ENTRY(entry) DEFINE(threadinfo_ ## entry, offsetof(struct thread_info, entry))
45 ENTRY(flags);
46 ENTRY(addr_limit);
47 ENTRY(preempt_count);
48 ENTRY(status);
49 #ifdef CONFIG_IA32_EMULATION
50 ENTRY(sysenter_return);
51 #endif
52 BLANK();
53 #undef ENTRY
54 #define ENTRY(entry) DEFINE(pda_ ## entry, offsetof(struct x8664_pda, entry))
55 ENTRY(kernelstack);
56 ENTRY(oldrsp);
57 ENTRY(pcurrent);
58 ENTRY(irqcount);
59 ENTRY(cpunumber);
60 ENTRY(irqstackptr);
61 ENTRY(data_offset);
62 BLANK();
63 #undef ENTRY
64 #ifdef CONFIG_PARAVIRT
65 BLANK();
66 OFFSET(PARAVIRT_enabled, pv_info, paravirt_enabled);
67 OFFSET(PARAVIRT_PATCH_pv_cpu_ops, paravirt_patch_template, pv_cpu_ops);
68 OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
69 OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
70 OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
71 OFFSET(PV_CPU_iret, pv_cpu_ops, iret);
72 OFFSET(PV_CPU_irq_enable_syscall_ret, pv_cpu_ops, irq_enable_syscall_ret);
73 OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
74 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
75 #endif
76
77
78 #ifdef CONFIG_IA32_EMULATION
79 #define ENTRY(entry) DEFINE(IA32_SIGCONTEXT_ ## entry, offsetof(struct sigcontext_ia32, entry))
80 ENTRY(ax);
81 ENTRY(bx);
82 ENTRY(cx);
83 ENTRY(dx);
84 ENTRY(si);
85 ENTRY(di);
86 ENTRY(bp);
87 ENTRY(sp);
88 ENTRY(ip);
89 BLANK();
90 #undef ENTRY
91 DEFINE(IA32_RT_SIGFRAME_sigcontext,
92 offsetof (struct rt_sigframe32, uc.uc_mcontext));
93 BLANK();
94 #endif
95 DEFINE(pbe_address, offsetof(struct pbe, address));
96 DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
97 DEFINE(pbe_next, offsetof(struct pbe, next));
98 BLANK();
99 #define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
100 ENTRY(bx);
101 ENTRY(bx);
102 ENTRY(cx);
103 ENTRY(dx);
104 ENTRY(sp);
105 ENTRY(bp);
106 ENTRY(si);
107 ENTRY(di);
108 ENTRY(r8);
109 ENTRY(r9);
110 ENTRY(r10);
111 ENTRY(r11);
112 ENTRY(r12);
113 ENTRY(r13);
114 ENTRY(r14);
115 ENTRY(r15);
116 ENTRY(flags);
117 BLANK();
118 #undef ENTRY
119 #define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
120 ENTRY(cr0);
121 ENTRY(cr2);
122 ENTRY(cr3);
123 ENTRY(cr4);
124 ENTRY(cr8);
125 BLANK();
126 #undef ENTRY
127 DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist));
128 BLANK();
129 DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
130 BLANK();
131 DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
132
133 BLANK();
134 OFFSET(BP_scratch, boot_params, scratch);
135 OFFSET(BP_loadflags, boot_params, hdr.loadflags);
136 OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
137 OFFSET(BP_version, boot_params, hdr.version);
138 return 0;
139 }
140
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