From 850038164847699f1720cc077c97f27e3e510f20 Mon Sep 17 00:00:00 2001
From: gbeauche <>
Date: Sun, 20 Feb 2005 18:08:50 +0000
Subject: [PATCH] Initial support for NetBSD/ppc in native mode (some crashes
 occur but I could boot MacOS 9.0.4)

---
 SheepShaver/src/Unix/main_unix.cpp | 20 ++++++++++++++++++++
 SheepShaver/src/Unix/ppc_asm.tmpl  |  4 ++--
 SheepShaver/src/Unix/sysdeps.h     |  2 +-
 SheepShaver/src/thunks.cpp         |  2 +-
 4 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/SheepShaver/src/Unix/main_unix.cpp b/SheepShaver/src/Unix/main_unix.cpp
index 67428942..b0660e69 100644
--- a/SheepShaver/src/Unix/main_unix.cpp
+++ b/SheepShaver/src/Unix/main_unix.cpp
@@ -204,6 +204,26 @@ struct machine_regs : public pt_regs
 };
 #endif
 
+#if defined(__NetBSD__)
+#include <sys/ucontext.h>
+#define MACHINE_REGISTERS(scp)	((machine_regs *)&(((ucontext_t *)scp)->uc_mcontext))
+
+struct machine_regs : public mcontext_t
+{
+	long & cr()					{ return __gregs[_REG_CR]; }
+	uint32 cr() const			{ return __gregs[_REG_CR]; }
+	uint32 lr() const			{ return __gregs[_REG_LR]; }
+	uint32 ctr() const			{ return __gregs[_REG_CTR]; }
+	uint32 xer() const			{ return __gregs[_REG_XER]; }
+	uint32 msr() const			{ return __gregs[_REG_MSR]; }
+	uint32 dar() const			{ return (uint32)(((siginfo_t *)(((unsigned long)this) - offsetof(ucontext_t, uc_mcontext))) - 1)->si_addr; } /* HACK */
+	long & pc()					{ return __gregs[_REG_PC]; }
+	uint32 pc() const			{ return __gregs[_REG_PC]; }
+	long & gpr(int i)			{ return __gregs[_REG_R0 + i]; }
+	uint32 gpr(int i) const		{ return __gregs[_REG_R0 + i]; }
+};
+#endif
+
 #if defined(__APPLE__) && defined(__MACH__)
 #include <sys/signal.h>
 extern "C" int sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
diff --git a/SheepShaver/src/Unix/ppc_asm.tmpl b/SheepShaver/src/Unix/ppc_asm.tmpl
index 08473ccb..20de7e5f 100644
--- a/SheepShaver/src/Unix/ppc_asm.tmpl
+++ b/SheepShaver/src/Unix/ppc_asm.tmpl
@@ -18,7 +18,7 @@
 #endif
 
 /* Register names */
-#if defined(__linux__)
+#if defined(__linux__) || defined(__NetBSD__)
 #define	r0	0
 #define	r1	1
 #define	r2	2
@@ -53,7 +53,7 @@
 #define	r31	31
 #endif
 
-#if defined(__linux__)
+#if defined(__linux__) || defined(__NetBSD__)
 #define	f0	0
 #define	f1	1
 #define	f2	2
diff --git a/SheepShaver/src/Unix/sysdeps.h b/SheepShaver/src/Unix/sysdeps.h
index 0760c236..2f3e81fd 100644
--- a/SheepShaver/src/Unix/sysdeps.h
+++ b/SheepShaver/src/Unix/sysdeps.h
@@ -413,7 +413,7 @@ typedef struct timeval tm_time_t;
 extern uint64 GetTicks_usec(void);
 extern void Delay_usec(uint32 usec);
 
-#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
+#if defined(HAVE_PTHREADS) || ((defined(__linux__) || defined(__NetBSD__)) && defined(__powerpc__))
 // Setup pthread attributes
 extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
 #endif
diff --git a/SheepShaver/src/thunks.cpp b/SheepShaver/src/thunks.cpp
index 49024f87..83b7e17a 100644
--- a/SheepShaver/src/thunks.cpp
+++ b/SheepShaver/src/thunks.cpp
@@ -215,7 +215,7 @@ bool ThunksInit(void)
 	native_op[NATIVE_R_GET_RESOURCE].func = r_get_resource_func;
 #endif
 #else
-#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__))
+#if defined(__linux__) || defined(__NetBSD__) || (defined(__APPLE__) && defined(__MACH__))
 #define DEFINE_NATIVE_OP(ID, FUNC) do {				\
 		uintptr base = SheepMem::Reserve(8);		\
 		WriteMacInt32(base + 0, (uint32)FUNC);		\