deleted file mode 100644
@@ -1,55 +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 ALPHA_HOST_SIGNAL_H
-#define ALPHA_HOST_SIGNAL_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.sc_pc;
-}
-
-static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc)
-{
- uc->uc_mcontext.sc_pc = 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)
-{
- uint32_t *pc = (uint32_t *)host_signal_pc(uc);
- uint32_t insn = *pc;
-
- /* XXX: need kernel patch to get write flag faster */
- switch (insn >> 26) {
- case 0x0d: /* stw */
- case 0x0e: /* stb */
- case 0x0f: /* stq_u */
- case 0x24: /* stf */
- case 0x25: /* stg */
- case 0x26: /* sts */
- case 0x27: /* stt */
- case 0x2c: /* stl */
- case 0x2d: /* stq */
- case 0x2e: /* stl_c */
- case 0x2f: /* stq_c */
- return true;
- }
- return false;
-}
-
-#endif
deleted file mode 100644
@@ -1,138 +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 S390_HOST_SIGNAL_H
-#define S390_HOST_SIGNAL_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.psw.addr;
-}
-
-static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc)
-{
- uc->uc_mcontext.psw.addr = 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)
-{
- uint16_t *pinsn = (uint16_t *)host_signal_pc(uc);
-
- /*
- * ??? On linux, the non-rt signal handler has 4 (!) arguments instead
- * of the normal 2 arguments. The 4th argument contains the "Translation-
- * Exception Identification for DAT Exceptions" from the hardware (aka
- * "int_parm_long"), which does in fact contain the is_write value.
- * The rt signal handler, as far as I can tell, does not give this value
- * at all. Not that we could get to it from here even if it were.
- * So fall back to parsing instructions. Treat read-modify-write ones as
- * writes, which is not fully correct, but for tracking self-modifying code
- * this is better than treating them as reads. Checking si_addr page flags
- * might be a viable improvement, albeit a racy one.
- */
- /* ??? This is not even close to complete. */
- switch (pinsn[0] >> 8) {
- case 0x50: /* ST */
- case 0x42: /* STC */
- case 0x40: /* STH */
- case 0x44: /* EX */
- case 0xba: /* CS */
- case 0xbb: /* CDS */
- return true;
- case 0xc4: /* RIL format insns */
- switch (pinsn[0] & 0xf) {
- case 0xf: /* STRL */
- case 0xb: /* STGRL */
- case 0x7: /* STHRL */
- return true;
- }
- break;
- case 0xc6: /* RIL-b format insns */
- switch (pinsn[0] & 0xf) {
- case 0x0: /* EXRL */
- return true;
- }
- break;
- case 0xc8: /* SSF format insns */
- switch (pinsn[0] & 0xf) {
- case 0x2: /* CSST */
- return true;
- }
- break;
- case 0xe3: /* RXY format insns */
- switch (pinsn[2] & 0xff) {
- case 0x50: /* STY */
- case 0x24: /* STG */
- case 0x72: /* STCY */
- case 0x70: /* STHY */
- case 0x8e: /* STPQ */
- case 0x3f: /* STRVH */
- case 0x3e: /* STRV */
- case 0x2f: /* STRVG */
- return true;
- }
- break;
- case 0xe6:
- switch (pinsn[2] & 0xff) {
- case 0x09: /* VSTEBRH */
- case 0x0a: /* VSTEBRG */
- case 0x0b: /* VSTEBRF */
- case 0x0e: /* VSTBR */
- case 0x0f: /* VSTER */
- case 0x3f: /* VSTRLR */
- return true;
- }
- break;
- case 0xe7:
- switch (pinsn[2] & 0xff) {
- case 0x08: /* VSTEB */
- case 0x09: /* VSTEH */
- case 0x0a: /* VSTEG */
- case 0x0b: /* VSTEF */
- case 0x0e: /* VST */
- case 0x1a: /* VSCEG */
- case 0x1b: /* VSCEF */
- case 0x3e: /* VSTM */
- case 0x3f: /* VSTL */
- return true;
- }
- break;
- case 0xeb: /* RSY format insns */
- switch (pinsn[2] & 0xff) {
- case 0x14: /* CSY */
- case 0x30: /* CSG */
- case 0x31: /* CDSY */
- case 0x3e: /* CDSG */
- case 0xe4: /* LANG */
- case 0xe6: /* LAOG */
- case 0xe7: /* LAXG */
- case 0xe8: /* LAAG */
- case 0xea: /* LAALG */
- case 0xf4: /* LAN */
- case 0xf6: /* LAO */
- case 0xf7: /* LAX */
- case 0xfa: /* LAAL */
- case 0xf8: /* LAA */
- return true;
- }
- break;
- }
- return false;
-}
-
-#endif
@@ -1 +1,138 @@
-#include "../s390/host-signal.h"
+/*
+ * 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 S390_HOST_SIGNAL_H
+#define S390_HOST_SIGNAL_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.psw.addr;
+}
+
+static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc)
+{
+ uc->uc_mcontext.psw.addr = 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)
+{
+ uint16_t *pinsn = (uint16_t *)host_signal_pc(uc);
+
+ /*
+ * ??? On linux, the non-rt signal handler has 4 (!) arguments instead
+ * of the normal 2 arguments. The 4th argument contains the "Translation-
+ * Exception Identification for DAT Exceptions" from the hardware (aka
+ * "int_parm_long"), which does in fact contain the is_write value.
+ * The rt signal handler, as far as I can tell, does not give this value
+ * at all. Not that we could get to it from here even if it were.
+ * So fall back to parsing instructions. Treat read-modify-write ones as
+ * writes, which is not fully correct, but for tracking self-modifying code
+ * this is better than treating them as reads. Checking si_addr page flags
+ * might be a viable improvement, albeit a racy one.
+ */
+ /* ??? This is not even close to complete. */
+ switch (pinsn[0] >> 8) {
+ case 0x50: /* ST */
+ case 0x42: /* STC */
+ case 0x40: /* STH */
+ case 0x44: /* EX */
+ case 0xba: /* CS */
+ case 0xbb: /* CDS */
+ return true;
+ case 0xc4: /* RIL format insns */
+ switch (pinsn[0] & 0xf) {
+ case 0xf: /* STRL */
+ case 0xb: /* STGRL */
+ case 0x7: /* STHRL */
+ return true;
+ }
+ break;
+ case 0xc6: /* RIL-b format insns */
+ switch (pinsn[0] & 0xf) {
+ case 0x0: /* EXRL */
+ return true;
+ }
+ break;
+ case 0xc8: /* SSF format insns */
+ switch (pinsn[0] & 0xf) {
+ case 0x2: /* CSST */
+ return true;
+ }
+ break;
+ case 0xe3: /* RXY format insns */
+ switch (pinsn[2] & 0xff) {
+ case 0x50: /* STY */
+ case 0x24: /* STG */
+ case 0x72: /* STCY */
+ case 0x70: /* STHY */
+ case 0x8e: /* STPQ */
+ case 0x3f: /* STRVH */
+ case 0x3e: /* STRV */
+ case 0x2f: /* STRVG */
+ return true;
+ }
+ break;
+ case 0xe6:
+ switch (pinsn[2] & 0xff) {
+ case 0x09: /* VSTEBRH */
+ case 0x0a: /* VSTEBRG */
+ case 0x0b: /* VSTEBRF */
+ case 0x0e: /* VSTBR */
+ case 0x0f: /* VSTER */
+ case 0x3f: /* VSTRLR */
+ return true;
+ }
+ break;
+ case 0xe7:
+ switch (pinsn[2] & 0xff) {
+ case 0x08: /* VSTEB */
+ case 0x09: /* VSTEH */
+ case 0x0a: /* VSTEG */
+ case 0x0b: /* VSTEF */
+ case 0x0e: /* VST */
+ case 0x1a: /* VSCEG */
+ case 0x1b: /* VSCEF */
+ case 0x3e: /* VSTM */
+ case 0x3f: /* VSTL */
+ return true;
+ }
+ break;
+ case 0xeb: /* RSY format insns */
+ switch (pinsn[2] & 0xff) {
+ case 0x14: /* CSY */
+ case 0x30: /* CSG */
+ case 0x31: /* CDSY */
+ case 0x3e: /* CDSG */
+ case 0xe4: /* LANG */
+ case 0xe6: /* LAOG */
+ case 0xe7: /* LAXG */
+ case 0xe8: /* LAAG */
+ case 0xea: /* LAALG */
+ case 0xf4: /* LAN */
+ case 0xf6: /* LAO */
+ case 0xf7: /* LAX */
+ case 0xfa: /* LAAL */
+ case 0xf8: /* LAA */
+ return true;
+ }
+ break;
+ }
+ return false;
+}
+
+#endif