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Diffstat (limited to 'linux-user/host/aarch64/host-signal.h')
-rw-r--r--linux-user/host/aarch64/host-signal.h79
1 files changed, 0 insertions, 79 deletions
diff --git a/linux-user/host/aarch64/host-signal.h b/linux-user/host/aarch64/host-signal.h
deleted file mode 100644
index 9770b36dc1..0000000000
--- a/linux-user/host/aarch64/host-signal.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * 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 AARCH64_HOST_SIGNAL_H
-#define AARCH64_HOST_SIGNAL_H
-
-/* Pre-3.16 kernel headers don't have these, so provide fallback definitions */
-#ifndef ESR_MAGIC
-#define ESR_MAGIC 0x45535201
-struct esr_context {
- struct _aarch64_ctx head;
- uint64_t esr;
-};
-#endif
-
-static inline struct _aarch64_ctx *first_ctx(ucontext_t *uc)
-{
- return (struct _aarch64_ctx *)&uc->uc_mcontext.__reserved;
-}
-
-static inline struct _aarch64_ctx *next_ctx(struct _aarch64_ctx *hdr)
-{
- return (struct _aarch64_ctx *)((char *)hdr + hdr->size);
-}
-
-static inline uintptr_t host_signal_pc(ucontext_t *uc)
-{
- return uc->uc_mcontext.pc;
-}
-
-static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
-{
- uc->uc_mcontext.pc = pc;
-}
-
-static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc)
-{
- struct _aarch64_ctx *hdr;
- uint32_t insn;
-
- /* Find the esr_context, which has the WnR bit in it */
- for (hdr = first_ctx(uc); hdr->magic; hdr = next_ctx(hdr)) {
- if (hdr->magic == ESR_MAGIC) {
- struct esr_context const *ec = (struct esr_context const *)hdr;
- uint64_t esr = ec->esr;
-
- /* For data aborts ESR.EC is 0b10010x: then bit 6 is the WnR bit */
- return extract32(esr, 27, 5) == 0x12 && extract32(esr, 6, 1) == 1;
- }
- }
-
- /*
- * Fall back to parsing instructions; will only be needed
- * for really ancient (pre-3.16) kernels.
- */
- insn = *(uint32_t *)host_signal_pc(uc);
-
- return (insn & 0xbfff0000) == 0x0c000000 /* C3.3.1 */
- || (insn & 0xbfe00000) == 0x0c800000 /* C3.3.2 */
- || (insn & 0xbfdf0000) == 0x0d000000 /* C3.3.3 */
- || (insn & 0xbfc00000) == 0x0d800000 /* C3.3.4 */
- || (insn & 0x3f400000) == 0x08000000 /* C3.3.6 */
- || (insn & 0x3bc00000) == 0x39000000 /* C3.3.13 */
- || (insn & 0x3fc00000) == 0x3d800000 /* ... 128bit */
- /* Ignore bits 10, 11 & 21, controlling indexing. */
- || (insn & 0x3bc00000) == 0x38000000 /* C3.3.8-12 */
- || (insn & 0x3fe00000) == 0x3c800000 /* ... 128bit */
- /* Ignore bits 23 & 24, controlling indexing. */
- || (insn & 0x3a400000) == 0x28000000; /* C3.3.7,14-16 */
-}
-
-#endif