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Diffstat (limited to 'cpu-exec.c')
-rw-r--r--cpu-exec.c33
1 files changed, 27 insertions, 6 deletions
diff --git a/cpu-exec.c b/cpu-exec.c
index 4029ea25ff..184bddea31 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -210,8 +210,7 @@ static void cpu_handle_debug_exception(CPUState *env)
int cpu_exec(CPUState *env1)
{
-#define DECLARE_HOST_REGS 1
-#include "hostregs_helper.h"
+ host_reg_t saved_env_reg;
int ret, interrupt_request;
TranslationBlock *tb;
uint8_t *tc_ptr;
@@ -222,9 +221,12 @@ int cpu_exec(CPUState *env1)
cpu_single_env = env1;
- /* first we save global registers */
-#define SAVE_HOST_REGS 1
-#include "hostregs_helper.h"
+ /* the access to env below is actually saving the global register's
+ value, so that files not including target-xyz/exec.h are free to
+ use it. */
+ QEMU_BUILD_BUG_ON (sizeof (saved_env_reg) != sizeof (env));
+ saved_env_reg = (host_reg_t) env;
+ asm("");
env = env1;
#if defined(TARGET_I386)
@@ -671,7 +673,8 @@ int cpu_exec(CPUState *env1)
#endif
/* restore global registers */
-#include "hostregs_helper.h"
+ asm("");
+ env = (void *) saved_env_reg;
/* fail safe : never use cpu_single_env outside cpu_exec() */
cpu_single_env = NULL;
@@ -923,6 +926,20 @@ int cpu_signal_handler(int host_signum, void *pinfo,
# define TRAP_sig(context) REG_sig(trap, context)
#endif /* linux */
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#include <ucontext.h>
+# define IAR_sig(context) ((context)->uc_mcontext.mc_srr0)
+# define MSR_sig(context) ((context)->uc_mcontext.mc_srr1)
+# define CTR_sig(context) ((context)->uc_mcontext.mc_ctr)
+# define XER_sig(context) ((context)->uc_mcontext.mc_xer)
+# define LR_sig(context) ((context)->uc_mcontext.mc_lr)
+# define CR_sig(context) ((context)->uc_mcontext.mc_cr)
+/* Exception Registers access */
+# define DAR_sig(context) ((context)->uc_mcontext.mc_dar)
+# define DSISR_sig(context) ((context)->uc_mcontext.mc_dsisr)
+# define TRAP_sig(context) ((context)->uc_mcontext.mc_exc)
+#endif /* __FreeBSD__|| __FreeBSD_kernel__ */
+
#ifdef __APPLE__
# include <sys/ucontext.h>
typedef struct ucontext SIGCONTEXT;
@@ -952,7 +969,11 @@ int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+ ucontext_t *uc = puc;
+#else
struct ucontext *uc = puc;
+#endif
unsigned long pc;
int is_write;