compat_sigaltstack.h revision 1.1.2.4
1 1.1.2.4 ad /* $NetBSD: compat_sigaltstack.h,v 1.1.2.4 2007/07/15 13:27:00 ad Exp $ */ 2 1.1.2.3 ad 3 1.1.2.3 ad /* Wrapper for calling sigaltstack1() from compat (or other) code */ 4 1.1.2.3 ad 5 1.1.2.3 ad /* Maybe these definitions could be global. */ 6 1.1.2.3 ad #ifdef SCARG_P32 7 1.1.2.3 ad /* compat32 */ 8 1.1.2.3 ad #define SCARG_COMPAT_PTR(uap,p) SCARG_P32(uap, p) 9 1.1.2.3 ad #define COMPAT_GET_PTR(p) NETBSD32PTR64(p) 10 1.1.2.3 ad #define COMPAT_SET_PTR(p, v) NETBSD32PTR32(p, v) 11 1.1.2.3 ad #else 12 1.1.2.3 ad /* not a size change */ 13 1.1.2.3 ad #define SCARG_COMPAT_PTR(uap,p) SCARG(uap, p) 14 1.1.2.3 ad #define COMPAT_GET_PTR(p) (p) 15 1.1.2.3 ad #define COMPAT_SET_PTR(p, v) ((p) = (v)) 16 1.1.2.3 ad #endif 17 1.1.2.3 ad 18 1.1.2.4 ad #define compat_sigaltstack(uap, compat_ss, ss_onstack, ss_disable) do { \ 19 1.1.2.3 ad struct compat_ss css; \ 20 1.1.2.3 ad struct sigaltstack nss, oss; \ 21 1.1.2.3 ad int error; \ 22 1.1.2.3 ad \ 23 1.1.2.3 ad if (SCARG_COMPAT_PTR(uap, nss)) { \ 24 1.1.2.3 ad error = copyin(SCARG_COMPAT_PTR(uap, nss), &css, sizeof css); \ 25 1.1.2.3 ad if (error) \ 26 1.1.2.3 ad return error; \ 27 1.1.2.4 ad nss.ss_sp = COMPAT_GET_PTR(css.ss_sp); \ 28 1.1.2.4 ad nss.ss_size = css.ss_size; \ 29 1.1.2.4 ad if (ss_onstack == SS_ONSTACK && ss_disable == SS_DISABLE) \ 30 1.1.2.4 ad nss.ss_flags = css.ss_flags; \ 31 1.1.2.4 ad else \ 32 1.1.2.4 ad nss.ss_flags = \ 33 1.1.2.4 ad (css.ss_flags & ss_onstack ? SS_ONSTACK : 0) \ 34 1.1.2.4 ad | (css.ss_flags & ss_disable ? SS_DISABLE : 0); \ 35 1.1.2.3 ad } \ 36 1.1.2.3 ad \ 37 1.1.2.3 ad error = sigaltstack1(l, SCARG_COMPAT_PTR(uap, nss) ? &nss : 0, \ 38 1.1.2.3 ad SCARG_COMPAT_PTR(uap, oss) ? &oss : 0); \ 39 1.1.2.3 ad if (error) \ 40 1.1.2.3 ad return (error); \ 41 1.1.2.3 ad \ 42 1.1.2.3 ad if (SCARG_COMPAT_PTR(uap, oss)) { \ 43 1.1.2.3 ad COMPAT_SET_PTR(css.ss_sp, oss.ss_sp); \ 44 1.1.2.3 ad css.ss_size = oss.ss_size; \ 45 1.1.2.4 ad if (ss_onstack == SS_ONSTACK && ss_disable == SS_DISABLE) \ 46 1.1.2.4 ad css.ss_flags = oss.ss_flags; \ 47 1.1.2.4 ad else \ 48 1.1.2.4 ad css.ss_flags = \ 49 1.1.2.4 ad (oss.ss_flags & SS_ONSTACK ? ss_onstack : 0) \ 50 1.1.2.4 ad | (oss.ss_flags & SS_DISABLE ? ss_disable : 0); \ 51 1.1.2.4 ad error = copyout(&css, SCARG_COMPAT_PTR(uap, oss), sizeof(css));\ 52 1.1.2.3 ad if (error) \ 53 1.1.2.3 ad return (error); \ 54 1.1.2.3 ad } \ 55 1.1.2.3 ad return (0); \ 56 1.1.2.3 ad } while (0) 57 1.1.2.4 ad /* $NetBSD: compat_sigaltstack.h,v 1.1.2.4 2007/07/15 13:27:00 ad Exp $ */ 58 1.1.2.2 ad 59 1.1.2.2 ad /* Wrapper for calling sigaltstack1() from compat (or other) code */ 60 1.1.2.2 ad 61 1.1.2.2 ad /* Maybe these definitions could be global. */ 62 1.1.2.2 ad #ifdef SCARG_P32 63 1.1.2.2 ad /* compat32 */ 64 1.1.2.2 ad #define SCARG_COMPAT_PTR(uap,p) SCARG_P32(uap, p) 65 1.1.2.2 ad #define COMPAT_GET_PTR(p) NETBSD32PTR64(p) 66 1.1.2.2 ad #define COMPAT_SET_PTR(p, v) NETBSD32PTR32(p, v) 67 1.1.2.2 ad #else 68 1.1.2.2 ad /* not a size change */ 69 1.1.2.2 ad #define SCARG_COMPAT_PTR(uap,p) SCARG(uap, p) 70 1.1.2.2 ad #define COMPAT_GET_PTR(p) (p) 71 1.1.2.2 ad #define COMPAT_SET_PTR(p, v) ((p) = (v)) 72 1.1.2.2 ad #endif 73 1.1.2.2 ad 74 1.1.2.2 ad #define compat_sigaltstack(uap, compat_ss) do { \ 75 1.1.2.2 ad struct compat_ss css; \ 76 1.1.2.2 ad struct sigaltstack nss, oss; \ 77 1.1.2.2 ad int error; \ 78 1.1.2.2 ad \ 79 1.1.2.2 ad if (SCARG_COMPAT_PTR(uap, nss)) { \ 80 1.1.2.2 ad error = copyin(SCARG_COMPAT_PTR(uap, nss), &css, sizeof css); \ 81 1.1.2.2 ad if (error) \ 82 1.1.2.2 ad return error; \ 83 1.1.2.2 ad nss.ss_sp = COMPAT_GET_PTR(css.ss_sp); \ 84 1.1.2.2 ad nss.ss_size = css.ss_size; \ 85 1.1.2.2 ad nss.ss_flags = css.ss_flags; \ 86 1.1.2.2 ad } \ 87 1.1.2.2 ad \ 88 1.1.2.2 ad error = sigaltstack1(l, SCARG_COMPAT_PTR(uap, nss) ? &nss : 0, \ 89 1.1.2.2 ad SCARG_COMPAT_PTR(uap, oss) ? &oss : 0); \ 90 1.1.2.2 ad if (error) \ 91 1.1.2.2 ad return (error); \ 92 1.1.2.2 ad \ 93 1.1.2.2 ad if (SCARG_COMPAT_PTR(uap, oss)) { \ 94 1.1.2.2 ad COMPAT_SET_PTR(css.ss_sp, oss.ss_sp); \ 95 1.1.2.2 ad css.ss_size = oss.ss_size; \ 96 1.1.2.2 ad css.ss_flags = oss.ss_flags; \ 97 1.1.2.2 ad error = copyout(&css, SCARG_COMPAT_PTR(uap, oss), sizeof(css)); \ 98 1.1.2.2 ad if (error) \ 99 1.1.2.2 ad return (error); \ 100 1.1.2.2 ad } \ 101 1.1.2.2 ad return (0); \ 102 1.1.2.2 ad } while (0) 103
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