| 1 | #ifndef UST_PROCESSOR_H |
| 2 | #define UST_PROCESSOR_H |
| 3 | |
| 4 | #include <stddef.h> |
| 5 | |
| 6 | #ifdef X86_32 |
| 7 | |
| 8 | struct registers { |
| 9 | long eax; |
| 10 | long ebx; |
| 11 | long ecx; |
| 12 | long edx; |
| 13 | long ebp; |
| 14 | long esp; |
| 15 | long esi; |
| 16 | long edi; |
| 17 | int xds; |
| 18 | int xes; |
| 19 | int xfs; |
| 20 | int xgs; |
| 21 | long eip; |
| 22 | int xcs; |
| 23 | long eflags; |
| 24 | int xss; |
| 25 | }; |
| 26 | |
| 27 | static inline save_registers(struct registers *regs) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | #define RELATIVE_ADDRESS(__rel_label__) __rel_label__ |
| 32 | |
| 33 | #define _ASM_PTR ".long " |
| 34 | |
| 35 | #else |
| 36 | |
| 37 | struct registers { |
| 38 | unsigned long rax; |
| 39 | unsigned long rbx; |
| 40 | unsigned long rcx; |
| 41 | unsigned long rdx; |
| 42 | unsigned long rbp; |
| 43 | unsigned long rsp; |
| 44 | unsigned long rsi; |
| 45 | unsigned long rdi; |
| 46 | unsigned long r8; |
| 47 | unsigned long r9; |
| 48 | unsigned long r10; |
| 49 | unsigned long r11; |
| 50 | unsigned long r12; |
| 51 | unsigned long r13; |
| 52 | unsigned long r14; |
| 53 | unsigned long r15; |
| 54 | int cs; |
| 55 | int ss; |
| 56 | }; |
| 57 | |
| 58 | #define save_registers(regsptr) \ |
| 59 | asm ("movq %%rax,%c[rax_off](%[regs])\n\t" \ |
| 60 | "movq %%rbx,%c[rbx_off](%[regs])\n\t" \ |
| 61 | "movq %%rcx,%c[rcx_off](%[regs])\n\t" \ |
| 62 | "movq %%rdx,%c[rdx_off](%[regs])\n\t" \ |
| 63 | "movq %%rbp,%c[rbp_off](%[regs])\n\t" \ |
| 64 | "movq %%rsp,%c[rsp_off](%[regs])\n\t" \ |
| 65 | "movq %%rsi,%c[rsi_off](%[regs])\n\t" \ |
| 66 | "movq %%rdi,%c[rdi_off](%[regs])\n\t" \ |
| 67 | "movq %%r8,%c[r8_off](%[regs])\n\t" \ |
| 68 | "movq %%r9,%c[r9_off](%[regs])\n\t" \ |
| 69 | "movq %%r10,%c[r10_off](%[regs])\n\t" \ |
| 70 | "movq %%r11,%c[r11_off](%[regs])\n\t" \ |
| 71 | "movq %%r12,%c[r12_off](%[regs])\n\t" \ |
| 72 | "movq %%r13,%c[r13_off](%[regs])\n\t" \ |
| 73 | "movq %%r14,%c[r14_off](%[regs])\n\t" \ |
| 74 | "movq %%r15,%c[r15_off](%[regs])\n\t" \ |
| 75 | "movw %%cs,%c[cs_off](%[regs])\n\t" \ |
| 76 | "movw %%ss,%c[ss_off](%[regs])\n\t" \ |
| 77 | : \ |
| 78 | : [regs] "r" (regsptr), \ |
| 79 | [rax_off] "i" (offsetof(struct registers, rax)), \ |
| 80 | [rbx_off] "i" (offsetof(struct registers, rbx)), \ |
| 81 | [rcx_off] "i" (offsetof(struct registers, rcx)), \ |
| 82 | [rdx_off] "i" (offsetof(struct registers, rdx)), \ |
| 83 | [rbp_off] "i" (offsetof(struct registers, rbp)), \ |
| 84 | [rsp_off] "i" (offsetof(struct registers, rsp)), \ |
| 85 | [rsi_off] "i" (offsetof(struct registers, rsi)), \ |
| 86 | [rdi_off] "i" (offsetof(struct registers, rdi)), \ |
| 87 | [r8_off] "i" (offsetof(struct registers, r8)), \ |
| 88 | [r9_off] "i" (offsetof(struct registers, r9)), \ |
| 89 | [r10_off] "i" (offsetof(struct registers, r10)), \ |
| 90 | [r11_off] "i" (offsetof(struct registers, r11)), \ |
| 91 | [r12_off] "i" (offsetof(struct registers, r12)), \ |
| 92 | [r13_off] "i" (offsetof(struct registers, r13)), \ |
| 93 | [r14_off] "i" (offsetof(struct registers, r14)), \ |
| 94 | [r15_off] "i" (offsetof(struct registers, r15)), \ |
| 95 | [cs_off] "i" (offsetof(struct registers, cs)), \ |
| 96 | [ss_off] "i" (offsetof(struct registers, ss)) \ |
| 97 | ); |
| 98 | |
| 99 | /* Macro to insert the address of a relative jump in an assembly stub, |
| 100 | * in a relocatable way. On x86-64, this uses a special (%rip) notation. */ |
| 101 | #define RELATIVE_ADDRESS(__rel_label__) __rel_label__(%%rip) |
| 102 | |
| 103 | #define _ASM_PTR ".quad " |
| 104 | |
| 105 | #endif |
| 106 | |
| 107 | #endif /* UST_PROCESSOR_H */ |