src/sys/compat/common/compat_sigaltstack.h - diff

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version 1.1, 2007/06/03 14:59:46

version 1.2, 2007/06/16 20:04:27

Line 15

#define COMPAT_SET_PTR(p, v) ((p) = (v))

#endif

#define compat_sigaltstack(uap, compat_ss) do { \

#define compat_sigaltstack(uap, compat_ss, ss_onstack, ss_disable) do { \

struct compat_ss css; \

struct sigaltstack nss, oss; \

int error; \

Line 24

error = copyin(SCARG_COMPAT_PTR(uap, nss), &css, sizeof css); \

if (error) \

return error; \

nss.ss_sp = COMPAT_GET_PTR(css.ss_sp); \

nss.ss_size = css.ss_size; \

nss.ss_flags = css.ss_flags; \

if (ss_onstack == SS_ONSTACK && ss_disable == SS_DISABLE) \

nss.ss_flags = css.ss_flags; \

else \

nss.ss_flags = \

(css.ss_flags & ss_onstack ? SS_ONSTACK : 0) \

| (css.ss_flags & ss_disable ? SS_DISABLE : 0); \

} \

error = sigaltstack1(l, SCARG_COMPAT_PTR(uap, nss) ? &nss : 0, \

Line 37

Line 42

if (SCARG_COMPAT_PTR(uap, oss)) { \

COMPAT_SET_PTR(css.ss_sp, oss.ss_sp); \

css.ss_size = oss.ss_size; \

css.ss_flags = oss.ss_flags; \

if (ss_onstack == SS_ONSTACK && ss_disable == SS_DISABLE) \

error = copyout(&css, SCARG_COMPAT_PTR(uap, oss), sizeof(css)); \

css.ss_flags = oss.ss_flags; \

else \

css.ss_flags = \

(oss.ss_flags & SS_ONSTACK ? ss_onstack : 0) \

| (oss.ss_flags & SS_DISABLE ? ss_disable : 0); \

error = copyout(&css, SCARG_COMPAT_PTR(uap, oss), sizeof(css));\

if (error) \

return (error); \

} \