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authorRichard Henderson <richard.henderson@linaro.org>2021-09-17 10:34:42 -0700
committerRichard Henderson <richard.henderson@linaro.org>2021-11-02 07:00:44 -0400
commita30bfaa7bd1f721a5b936fd1b4bf009eb9c2a6f4 (patch)
tree52bfcf06afc9b387eb1a10117ee2b7ec54675604 /linux-user/host
parent8b5bd461935b7682302366f95ad192434fd99e67 (diff)
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linux-user/host/arm: Populate host_signal.h
Split host_signal_pc and host_signal_write out of user-exec.c. Drop the *BSD code, to be re-created under bsd-user/ later. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'linux-user/host')
-rw-r--r--linux-user/host/arm/host-signal.h31
1 files changed, 30 insertions, 1 deletions
diff --git a/linux-user/host/arm/host-signal.h b/linux-user/host/arm/host-signal.h
index f4b4d65..efb165c 100644
--- a/linux-user/host/arm/host-signal.h
+++ b/linux-user/host/arm/host-signal.h
@@ -1 +1,30 @@
-#define HOST_SIGNAL_PLACEHOLDER
+/*
+ * host-signal.h: signal info dependent on the host architecture
+ *
+ * Copyright (c) 2003-2005 Fabrice Bellard
+ * Copyright (c) 2021 Linaro Limited
+ *
+ * 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 ARM_HOST_SIGNAL_H
+#define ARM_HOST_SIGNAL_H
+
+static inline uintptr_t host_signal_pc(ucontext_t *uc)
+{
+ return uc->uc_mcontext.arm_pc;
+}
+
+static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc)
+{
+ /*
+ * In the FSR, bit 11 is WnR, assuming a v6 or
+ * later processor. On v5 we will always report
+ * this as a read, which will fail later.
+ */
+ uint32_t fsr = uc->uc_mcontext.error_code;
+ return extract32(fsr, 11, 1);
+}
+
+#endif