From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 29 Jul 2022 17:21:41 +0000 (-0700)
Subject: linux-user: Implment host/ppc/host-signal.h
X-Git-Tag: v8.0.0-rc0~79^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2466bb3b083f965ef1ec12368c07e7d1e2f0b4c4;p=thirdparty%2Fqemu.git

linux-user: Implment host/ppc/host-signal.h

This commit re-enables ppc32 as a linux-user host,
as existance of the directory is noted by configure.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1097
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220729172141.1789105-3-richard.henderson@linaro.org>
---

diff --git a/linux-user/include/host/ppc/host-signal.h b/linux-user/include/host/ppc/host-signal.h
new file mode 100644
index 00000000000..de25c803f54
--- /dev/null
+++ b/linux-user/include/host/ppc/host-signal.h
@@ -0,0 +1,39 @@
+/*
+ * host-signal.h: signal info dependent on the host architecture
+ *
+ * Copyright (c) 2022 Linaro Ltd.
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef PPC_HOST_SIGNAL_H
+#define PPC_HOST_SIGNAL_H
+
+#include <asm/ptrace.h>
+
+/* The third argument to a SA_SIGINFO handler is ucontext_t. */
+typedef ucontext_t host_sigcontext;
+
+static inline uintptr_t host_signal_pc(host_sigcontext *uc)
+{
+    return uc->uc_mcontext.regs->nip;
+}
+
+static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc)
+{
+    uc->uc_mcontext.regs->nip = pc;
+}
+
+static inline void *host_signal_mask(host_sigcontext *uc)
+{
+    return &uc->uc_sigmask;
+}
+
+static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc)
+{
+    return uc->uc_mcontext.regs->trap != 0x400
+        && (uc->uc_mcontext.regs->dsisr & 0x02000000);
+}
+
+#endif