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-rw-r--r--linux-user/signal-common.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/linux-user/signal-common.h b/linux-user/signal-common.h
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+++ b/linux-user/signal-common.h
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+/*
+ * Emulation of Linux signals
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SIGNAL_COMMON_H
+#define SIGNAL_COMMON_H
+extern struct target_sigaltstack target_sigaltstack_used;
+
+static inline int on_sig_stack(unsigned long sp)
+{
+ return (sp - target_sigaltstack_used.ss_sp
+ < target_sigaltstack_used.ss_size);
+}
+
+static inline int sas_ss_flags(unsigned long sp)
+{
+ return (target_sigaltstack_used.ss_size == 0 ? SS_DISABLE
+ : on_sig_stack(sp) ? SS_ONSTACK : 0);
+}
+
+static inline void target_sigemptyset(target_sigset_t *set)
+{
+ memset(set, 0, sizeof(*set));
+}
+
+void host_to_target_sigset_internal(target_sigset_t *d,
+ const sigset_t *s);
+void target_to_host_sigset_internal(sigset_t *d,
+ const target_sigset_t *s);
+void tswap_siginfo(target_siginfo_t *tinfo,
+ const target_siginfo_t *info);
+void set_sigmask(const sigset_t *set);
+void force_sig(int sig);
+void force_sigsegv(int oldsig);
+#endif