sigframe.h (51984) | sigframe.h (53106) |
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1/*- 2 * Copyright (c) 1999 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * | 1/*- 2 * Copyright (c) 1999 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * |
28 * $FreeBSD: head/sys/i386/include/sigframe.h 51984 1999-10-07 12:40:34Z marcel $ | 28 * $FreeBSD: head/sys/i386/include/sigframe.h 53106 1999-11-12 11:21:34Z marcel $ |
29 */ 30 31#ifndef _MACHINE_SIGFRAME_H_ 32#define _MACHINE_SIGFRAME_H_ 33 34/* 35 * Signal frames, arguments passed to application signal handlers. 36 */ 37 38struct osigframe { 39 /* | 29 */ 30 31#ifndef _MACHINE_SIGFRAME_H_ 32#define _MACHINE_SIGFRAME_H_ 33 34/* 35 * Signal frames, arguments passed to application signal handlers. 36 */ 37 38struct osigframe { 39 /* |
40 * The first three members may be used by applications. | 40 * The first four members may be used by applications. |
41 */ 42 43 register_t sf_signum; 44 45 /* 46 * Either 'int' for old-style FreeBSD handler or 'siginfo_t *' 47 * pointing to sf_siginfo for SA_SIGINFO handlers. 48 */ 49 register_t sf_arg2; 50 51 /* Points to sf_siginfo.si_sc. */ 52 register_t sf_scp; 53 | 41 */ 42 43 register_t sf_signum; 44 45 /* 46 * Either 'int' for old-style FreeBSD handler or 'siginfo_t *' 47 * pointing to sf_siginfo for SA_SIGINFO handlers. 48 */ 49 register_t sf_arg2; 50 51 /* Points to sf_siginfo.si_sc. */ 52 register_t sf_scp; 53 |
54 register_t *sf_addr; 55 |
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54 /* 55 * The following arguments are not constrained by the 56 * function call protocol. 57 * Applications are not supposed to access these members, 58 * except using the pointers we provide in the first three 59 * arguments. 60 */ 61 | 56 /* 57 * The following arguments are not constrained by the 58 * function call protocol. 59 * Applications are not supposed to access these members, 60 * except using the pointers we provide in the first three 61 * arguments. 62 */ 63 |
62 char *sf_addr; 63 | |
64 union { 65 __osiginfohandler_t *sf_action; 66 __sighandler_t *sf_handler; 67 } sf_ahu; 68 69 /* In the SA_SIGINFO case, sf_arg2 points here. */ 70 osiginfo_t sf_siginfo; 71}; 72 73struct sigframe { 74 /* 75 * The first four members may be used by applications. | 64 union { 65 __osiginfohandler_t *sf_action; 66 __sighandler_t *sf_handler; 67 } sf_ahu; 68 69 /* In the SA_SIGINFO case, sf_arg2 points here. */ 70 osiginfo_t sf_siginfo; 71}; 72 73struct sigframe { 74 /* 75 * The first four members may be used by applications. |
76 * |
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76 * NOTE: The 4th argument is undocumented, ill commented | 77 * NOTE: The 4th argument is undocumented, ill commented |
77 * on and seems to be somewhat BSD "standard". 78 * Handlers installed with sigvec may be using it. | 78 * on and seems to be somewhat BSD "standard". Handlers 79 * installed with sigvec may be using it. |
79 */ 80 register_t sf_signum; | 80 */ 81 register_t sf_signum; |
81 register_t sf_siginfo; /* code or pointer to sf_si */ 82 register_t sf_ucontext; /* points to sf_uc */ 83 char *sf_addr; /* undocumented 4th arg */ | 82 register_t sf_siginfo; /* code or pointer to sf_si */ 83 register_t sf_ucontext; /* points to sf_uc */ 84 register_t *sf_addr; /* undocumented 4th arg */ |
84 85 union { 86 __siginfohandler_t *sf_action; 87 __sighandler_t *sf_handler; 88 } sf_ahu; 89 ucontext_t sf_uc; /* = *sf_ucontext */ 90 siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 91}; 92 93#endif /* !_MACHINE_SIGFRAME_H_ */ | 85 86 union { 87 __siginfohandler_t *sf_action; 88 __sighandler_t *sf_handler; 89 } sf_ahu; 90 ucontext_t sf_uc; /* = *sf_ucontext */ 91 siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 92}; 93 94#endif /* !_MACHINE_SIGFRAME_H_ */ |