compat_sigaltstack.h revision 1.1.2.3
1 1.1.2.3 ad /* $NetBSD: compat_sigaltstack.h,v 1.1.2.3 2007/06/09 23:57:41 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 1.1.2.3 ad #define compat_sigaltstack(uap, compat_ss) 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 1.1.2.3 ad nss.ss_sp = COMPAT_GET_PTR(css.ss_sp); \ 28 1.1.2.3 ad nss.ss_size = css.ss_size; \ 29 1.1.2.3 ad nss.ss_flags = css.ss_flags; \ 30 1.1.2.3 ad } \ 31 1.1.2.3 ad \ 32 1.1.2.3 ad error = sigaltstack1(l, SCARG_COMPAT_PTR(uap, nss) ? &nss : 0, \ 33 1.1.2.3 ad SCARG_COMPAT_PTR(uap, oss) ? &oss : 0); \ 34 1.1.2.3 ad if (error) \ 35 1.1.2.3 ad return (error); \ 36 1.1.2.3 ad \ 37 1.1.2.3 ad if (SCARG_COMPAT_PTR(uap, oss)) { \ 38 1.1.2.3 ad COMPAT_SET_PTR(css.ss_sp, oss.ss_sp); \ 39 1.1.2.3 ad css.ss_size = oss.ss_size; \ 40 1.1.2.3 ad css.ss_flags = oss.ss_flags; \ 41 1.1.2.3 ad error = copyout(&css, SCARG_COMPAT_PTR(uap, oss), sizeof(css)); \ 42 1.1.2.3 ad if (error) \ 43 1.1.2.3 ad return (error); \ 44 1.1.2.3 ad } \ 45 1.1.2.3 ad return (0); \ 46 1.1.2.3 ad } while (0) 47 1.1.2.3 ad /* $NetBSD: compat_sigaltstack.h,v 1.1.2.3 2007/06/09 23:57:41 ad Exp $ */ 48 1.1.2.2 ad 49 1.1.2.2 ad /* Wrapper for calling sigaltstack1() from compat (or other) code */ 50 1.1.2.2 ad 51 1.1.2.2 ad /* Maybe these definitions could be global. */ 52 1.1.2.2 ad #ifdef SCARG_P32 53 1.1.2.2 ad /* compat32 */ 54 1.1.2.2 ad #define SCARG_COMPAT_PTR(uap,p) SCARG_P32(uap, p) 55 1.1.2.2 ad #define COMPAT_GET_PTR(p) NETBSD32PTR64(p) 56 1.1.2.2 ad #define COMPAT_SET_PTR(p, v) NETBSD32PTR32(p, v) 57 1.1.2.2 ad #else 58 1.1.2.2 ad /* not a size change */ 59 1.1.2.2 ad #define SCARG_COMPAT_PTR(uap,p) SCARG(uap, p) 60 1.1.2.2 ad #define COMPAT_GET_PTR(p) (p) 61 1.1.2.2 ad #define COMPAT_SET_PTR(p, v) ((p) = (v)) 62 1.1.2.2 ad #endif 63 1.1.2.2 ad 64 1.1.2.2 ad #define compat_sigaltstack(uap, compat_ss) do { \ 65 1.1.2.2 ad struct compat_ss css; \ 66 1.1.2.2 ad struct sigaltstack nss, oss; \ 67 1.1.2.2 ad int error; \ 68 1.1.2.2 ad \ 69 1.1.2.2 ad if (SCARG_COMPAT_PTR(uap, nss)) { \ 70 1.1.2.2 ad error = copyin(SCARG_COMPAT_PTR(uap, nss), &css, sizeof css); \ 71 1.1.2.2 ad if (error) \ 72 1.1.2.2 ad return error; \ 73 1.1.2.2 ad nss.ss_sp = COMPAT_GET_PTR(css.ss_sp); \ 74 1.1.2.2 ad nss.ss_size = css.ss_size; \ 75 1.1.2.2 ad nss.ss_flags = css.ss_flags; \ 76 1.1.2.2 ad } \ 77 1.1.2.2 ad \ 78 1.1.2.2 ad error = sigaltstack1(l, SCARG_COMPAT_PTR(uap, nss) ? &nss : 0, \ 79 1.1.2.2 ad SCARG_COMPAT_PTR(uap, oss) ? &oss : 0); \ 80 1.1.2.2 ad if (error) \ 81 1.1.2.2 ad return (error); \ 82 1.1.2.2 ad \ 83 1.1.2.2 ad if (SCARG_COMPAT_PTR(uap, oss)) { \ 84 1.1.2.2 ad COMPAT_SET_PTR(css.ss_sp, oss.ss_sp); \ 85 1.1.2.2 ad css.ss_size = oss.ss_size; \ 86 1.1.2.2 ad css.ss_flags = oss.ss_flags; \ 87 1.1.2.2 ad error = copyout(&css, SCARG_COMPAT_PTR(uap, oss), sizeof(css)); \ 88 1.1.2.2 ad if (error) \ 89 1.1.2.2 ad return (error); \ 90 1.1.2.2 ad } \ 91 1.1.2.2 ad return (0); \ 92 1.1.2.2 ad } while (0) 93
Indexes created Fri Oct 03 02:09:57 GMT 2025