Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
linux-user/syscall.c | 325 ++++++++++++++++++++++---------------------
1 file changed, 165 insertions(+), 160 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index d78288258a..cdb4dd5bb4 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8622,6 +8622,81 @@ IMPL(rmdir)
}
#endif
+IMPL(rt_sigaction)
+{
+ abi_long ret;
+#ifdef TARGET_ALPHA
+ /* For Alpha and SPARC this is a 5 argument syscall, with
+ * a 'restorer' parameter which must be copied into the
+ * sa_restorer field of the sigaction struct.
+ * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
+ * and arg5 is the sigsetsize.
+ * Alpha also has a separate rt_sigaction struct that it uses
+ * here; SPARC uses the usual sigaction struct.
+ */
+ struct target_rt_sigaction *rt_act;
+ struct target_sigaction act, oact, *pact = 0;
+
+ if (arg4 != sizeof(target_sigset_t)) {
+ return -TARGET_EINVAL;
+ }
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) {
+ return -TARGET_EFAULT;
+ }
+ act._sa_handler = rt_act->_sa_handler;
+ act.sa_mask = rt_act->sa_mask;
+ act.sa_flags = rt_act->sa_flags;
+ act.sa_restorer = arg5;
+ unlock_user_struct(rt_act, arg2, 0);
+ pact = &act;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) {
+ return -TARGET_EFAULT;
+ }
+ rt_act->_sa_handler = oact._sa_handler;
+ rt_act->sa_mask = oact.sa_mask;
+ rt_act->sa_flags = oact.sa_flags;
+ unlock_user_struct(rt_act, arg3, 1);
+ }
+#else
+# ifdef TARGET_SPARC
+ target_ulong restorer = arg4;
+ target_ulong sigsetsize = arg5;
+# else
+ target_ulong sigsetsize = arg4;
+# endif
+ struct target_sigaction *act = NULL;
+ struct target_sigaction *oact = NULL;
+
+ if (sigsetsize != sizeof(target_sigset_t)) {
+ return -TARGET_EINVAL;
+ }
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
+ return -TARGET_EFAULT;
+ }
+# ifdef TARGET_ARCH_HAS_KA_RESTORER
+ act->ka_restorer = restorer;
+# endif
+ }
+ if (arg3 && !lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
+ ret = -TARGET_EFAULT;
+ } else {
+ ret = get_errno(do_sigaction(arg1, act, oact));
+ }
+ if (act) {
+ unlock_user_struct(act, arg2, 0);
+ }
+ if (oact) {
+ unlock_user_struct(oact, arg3, 1);
+ }
+#endif
+ return ret;
+}
+
IMPL(setpgid)
{
return get_errno(setpgid(arg1, arg2));
@@ -8632,6 +8707,92 @@ IMPL(setsid)
return get_errno(setsid());
}
+#ifdef TARGET_NR_sigaction
+IMPL(sigaction)
+{
+ abi_long ret;
+# if defined(TARGET_ALPHA)
+ struct target_sigaction act, oact, *pact = NULL;
+ struct target_old_sigaction *old_act;
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) {
+ return -TARGET_EFAULT;
+ }
+ act._sa_handler = old_act->_sa_handler;
+ target_siginitset(&act.sa_mask, old_act->sa_mask);
+ act.sa_flags = old_act->sa_flags;
+ act.sa_restorer = 0;
+ unlock_user_struct(old_act, arg2, 0);
+ pact = &act;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) {
+ return -TARGET_EFAULT;
+ }
+ old_act->_sa_handler = oact._sa_handler;
+ old_act->sa_mask = oact.sa_mask.sig[0];
+ old_act->sa_flags = oact.sa_flags;
+ unlock_user_struct(old_act, arg3, 1);
+ }
+# elif defined(TARGET_MIPS)
+ struct target_sigaction act, oact, *pact = NULL, *old_act;
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) {
+ return -TARGET_EFAULT;
+ }
+ act._sa_handler = old_act->_sa_handler;
+ target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
+ act.sa_flags = old_act->sa_flags;
+ unlock_user_struct(old_act, arg2, 0);
+ pact = &act;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) {
+ return -TARGET_EFAULT;
+ }
+ old_act->_sa_handler = oact._sa_handler;
+ old_act->sa_flags = oact.sa_flags;
+ old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
+ old_act->sa_mask.sig[1] = 0;
+ old_act->sa_mask.sig[2] = 0;
+ old_act->sa_mask.sig[3] = 0;
+ unlock_user_struct(old_act, arg3, 1);
+ }
+# else
+ struct target_sigaction act, oact, *pact = NULL;
+ struct target_old_sigaction *old_act;
+ if (arg2) {
+ if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) {
+ return -TARGET_EFAULT;
+ }
+ act._sa_handler = old_act->_sa_handler;
+ target_siginitset(&act.sa_mask, old_act->sa_mask);
+ act.sa_flags = old_act->sa_flags;
+ act.sa_restorer = old_act->sa_restorer;
+# ifdef TARGET_ARCH_HAS_KA_RESTORER
+ act.ka_restorer = 0;
+# endif
+ unlock_user_struct(old_act, arg2, 0);
+ pact = &act;
+ }
+ ret = get_errno(do_sigaction(arg1, pact, &oact));
+ if (!is_error(ret) && arg3) {
+ if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) {
+ return -TARGET_EFAULT;
+ }
+ old_act->_sa_handler = oact._sa_handler;
+ old_act->sa_mask = oact.sa_mask.sig[0];
+ old_act->sa_flags = oact.sa_flags;
+ old_act->sa_restorer = oact.sa_restorer;
+ unlock_user_struct(old_act, arg3, 1);
+ }
+# endif
+ return ret;
+}
+#endif
+
#ifdef TARGET_NR_stime
IMPL(stime)
{
@@ -8873,166 +9034,6 @@ static abi_long do_syscall1(void *cpu_env, unsigned
num, abi_long arg1,
void *p;
switch(num) {
-#ifdef TARGET_NR_sigaction
- case TARGET_NR_sigaction:
- {
-#if defined(TARGET_ALPHA)
- struct target_sigaction act, oact, *pact = 0;
- struct target_old_sigaction *old_act;
- if (arg2) {
- if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
- return -TARGET_EFAULT;
- act._sa_handler = old_act->_sa_handler;
- target_siginitset(&act.sa_mask, old_act->sa_mask);
- act.sa_flags = old_act->sa_flags;
- act.sa_restorer = 0;
- unlock_user_struct(old_act, arg2, 0);
- pact = &act;
- }
- ret = get_errno(do_sigaction(arg1, pact, &oact));
- if (!is_error(ret) && arg3) {
- if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
- return -TARGET_EFAULT;
- old_act->_sa_handler = oact._sa_handler;
- old_act->sa_mask = oact.sa_mask.sig[0];
- old_act->sa_flags = oact.sa_flags;
- unlock_user_struct(old_act, arg3, 1);
- }
-#elif defined(TARGET_MIPS)
- struct target_sigaction act, oact, *pact, *old_act;
-
- if (arg2) {
- if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
- return -TARGET_EFAULT;
- act._sa_handler = old_act->_sa_handler;
- target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
- act.sa_flags = old_act->sa_flags;
- unlock_user_struct(old_act, arg2, 0);
- pact = &act;
- } else {
- pact = NULL;
- }
-
- ret = get_errno(do_sigaction(arg1, pact, &oact));
-
- if (!is_error(ret) && arg3) {
- if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
- return -TARGET_EFAULT;
- old_act->_sa_handler = oact._sa_handler;
- old_act->sa_flags = oact.sa_flags;
- old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
- old_act->sa_mask.sig[1] = 0;
- old_act->sa_mask.sig[2] = 0;
- old_act->sa_mask.sig[3] = 0;
- unlock_user_struct(old_act, arg3, 1);
- }
-#else
- struct target_old_sigaction *old_act;
- struct target_sigaction act, oact, *pact;
- if (arg2) {
- if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
- return -TARGET_EFAULT;
- act._sa_handler = old_act->_sa_handler;
- target_siginitset(&act.sa_mask, old_act->sa_mask);
- act.sa_flags = old_act->sa_flags;
- act.sa_restorer = old_act->sa_restorer;
-#ifdef TARGET_ARCH_HAS_KA_RESTORER
- act.ka_restorer = 0;
-#endif
- unlock_user_struct(old_act, arg2, 0);
- pact = &act;
- } else {
- pact = NULL;
- }
- ret = get_errno(do_sigaction(arg1, pact, &oact));
- if (!is_error(ret) && arg3) {
- if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
- return -TARGET_EFAULT;
- old_act->_sa_handler = oact._sa_handler;
- old_act->sa_mask = oact.sa_mask.sig[0];
- old_act->sa_flags = oact.sa_flags;
- old_act->sa_restorer = oact.sa_restorer;
- unlock_user_struct(old_act, arg3, 1);
- }
-#endif
- }
- return ret;
-#endif
- case TARGET_NR_rt_sigaction:
- {
-#if defined(TARGET_ALPHA)
- /* For Alpha and SPARC this is a 5 argument syscall, with
- * a 'restorer' parameter which must be copied into the
- * sa_restorer field of the sigaction struct.
- * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
- * and arg5 is the sigsetsize.
- * Alpha also has a separate rt_sigaction struct that it uses
- * here; SPARC uses the usual sigaction struct.
- */
- struct target_rt_sigaction *rt_act;
- struct target_sigaction act, oact, *pact = 0;
-
- if (arg4 != sizeof(target_sigset_t)) {
- return -TARGET_EINVAL;
- }
- if (arg2) {
- if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
- return -TARGET_EFAULT;
- act._sa_handler = rt_act->_sa_handler;
- act.sa_mask = rt_act->sa_mask;
- act.sa_flags = rt_act->sa_flags;
- act.sa_restorer = arg5;
- unlock_user_struct(rt_act, arg2, 0);
- pact = &act;
- }
- ret = get_errno(do_sigaction(arg1, pact, &oact));
- if (!is_error(ret) && arg3) {
- if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
- return -TARGET_EFAULT;
- rt_act->_sa_handler = oact._sa_handler;
- rt_act->sa_mask = oact.sa_mask;
- rt_act->sa_flags = oact.sa_flags;
- unlock_user_struct(rt_act, arg3, 1);
- }
-#else
-#ifdef TARGET_SPARC
- target_ulong restorer = arg4;
- target_ulong sigsetsize = arg5;
-#else
- target_ulong sigsetsize = arg4;
-#endif
- struct target_sigaction *act;
- struct target_sigaction *oact;
-
- if (sigsetsize != sizeof(target_sigset_t)) {
- return -TARGET_EINVAL;
- }
- if (arg2) {
- if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
- return -TARGET_EFAULT;
- }
-#ifdef TARGET_ARCH_HAS_KA_RESTORER
- act->ka_restorer = restorer;
-#endif
- } else {
- act = NULL;
- }
- if (arg3) {
- if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
- ret = -TARGET_EFAULT;
- goto rt_sigaction_fail;
- }
- } else
- oact = NULL;
- ret = get_errno(do_sigaction(arg1, act, oact));
- rt_sigaction_fail:
- if (act)
- unlock_user_struct(act, arg2, 0);
- if (oact)
- unlock_user_struct(oact, arg3, 1);
-#endif
- }
- return ret;
#ifdef TARGET_NR_sgetmask /* not on alpha */
case TARGET_NR_sgetmask:
{
@@ -12741,8 +12742,12 @@ static impl_fn *syscall_table(unsigned num)
#ifdef TARGET_NR_rmdir
SYSCALL(rmdir);
#endif
+ SYSCALL(rt_sigaction);
SYSCALL(setpgid);
SYSCALL(setsid);
+#ifdef TARGET_NR_sigaction
+ SYSCALL(sigaction);
+#endif
#ifdef TARGET_NR_stime
SYSCALL(stime);
#endif
--
2.17.1
