projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 4bd1c0bf WN |
1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * William Jolitz. | |
| 7 | * | |
| 8 | * %sccs.include.noredist.c% | |
| 9 | * | |
| 10 | * @(#)frame.h 5.1 (Berkeley) %G% | |
| 11 | */ | |
| 12 | ||
| 13 | /* | |
| 14 | * System stack frames. | |
| 15 | */ | |
| 6879f5b7 BJ |
16 | |
| 17 | /* | |
| 4bd1c0bf | 18 | * Exception/Trap Stack Frame |
| 6879f5b7 | 19 | */ |
| 4bd1c0bf WN |
20 | |
| 21 | struct trapframe { | |
| 22 | int tf_es; | |
| 23 | int tf_ds; | |
| 24 | int tf_edi; | |
| 25 | int tf_esi; | |
| 26 | int tf_ebp; | |
| 27 | int tf_isp; | |
| 28 | int tf_ebx; | |
| 29 | int tf_edx; | |
| 30 | int tf_ecx; | |
| 31 | int tf_eax; | |
| 32 | int tf_trapno; | |
| 33 | /* below portion defined in 386 hardware */ | |
| 34 | int tf_err; | |
| 35 | int tf_eip; | |
| 36 | int tf_cs; | |
| 37 | int tf_eflags; | |
| 38 | /* below only when transitting rings (e.g. user to kernel) */ | |
| 39 | int tf_esp; | |
| 40 | int tf_ss; | |
| 41 | }; | |
| 42 | ||
| 43 | /* Interrupt stack frame */ | |
| 44 | ||
| 45 | struct intrframe { | |
| 46 | int if_vec; | |
| 47 | int if_ppl; | |
| 48 | int if_es; | |
| 49 | int if_ds; | |
| 50 | int if_edi; | |
| 51 | int if_esi; | |
| 52 | int if_ebp; | |
| 53 | int :32; | |
| 54 | int if_ebx; | |
| 55 | int if_edx; | |
| 56 | int if_ecx; | |
| 57 | int if_eax; | |
| 58 | int :32; /* for compat with trap frame - trapno */ | |
| 59 | int :32; /* for compat with trap frame - err */ | |
| 60 | /* below portion defined in 386 hardware */ | |
| 61 | int if_eip; | |
| 62 | int if_cs; | |
| 63 | int if_eflags; | |
| 64 | /* below only when transitting rings (e.g. user to kernel) */ | |
| 65 | int if_esp; | |
| 66 | int if_ss; | |
| 67 | }; | |
| 68 | ||
| 69 | /* | |
| 70 | * Call Gate/System Call Stack Frame | |
| 71 | */ | |
| 72 | ||
| 73 | struct syscframe { | |
| 74 | int sf_edi; | |
| 75 | int sf_esi; | |
| 76 | int sf_ebp; | |
| 77 | int :32; /* redundant save of isp */ | |
| 78 | int sf_ebx; | |
| 79 | int sf_edx; | |
| 80 | int sf_ecx; | |
| 81 | int sf_eax; | |
| 82 | int sf_eflags; | |
| 83 | /* below portion defined in 386 hardware */ | |
| 84 | /* int sf_args[N]; /* if call gate copy args enabled!*/ | |
| 85 | int sf_eip; | |
| 86 | int sf_cs; | |
| 87 | /* below only when transitting rings (e.g. user to kernel) */ | |
| 88 | int sf_esp; | |
| 89 | int sf_ss; | |
| 6879f5b7 | 90 | }; |