* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
-#include "exec.h"
+#include "cpu.h"
#include "disas.h"
#include "tcg.h"
//#define DEBUG_SIGNAL
-static void exception_action(CPUState *env1)
+static void exception_action(CPUArchState *env1)
{
#if defined(TARGET_I386)
- raise_exception_err(env1->exception_index, env1->error_code);
+ raise_exception_err(env1, env1->exception_index, env1->error_code);
#else
cpu_loop_exit(env1);
#endif
/* exit the current TB from a signal handler. The host registers are
restored in a state compatible with the CPU emulator
*/
-void cpu_resume_from_signal(CPUState *env1, void *puc)
+void cpu_resume_from_signal(CPUArchState *env1, void *puc)
{
#ifdef __linux__
struct ucontext *uc = puc;
struct sigcontext *uc = puc;
#endif
- env = env1;
-
- /* XXX: restore cpu registers saved in host registers */
-
if (puc) {
/* XXX: use siglongjmp ? */
#ifdef __linux__
sigprocmask(SIG_SETMASK, &uc->sc_mask, NULL);
#endif
}
- env->exception_index = -1;
- longjmp(env->jmp_env, 1);
+ env1->exception_index = -1;
+ longjmp(env1->jmp_env, 1);
}
/* 'pc' is the host PC at which the exception was raised. 'address' is
the effective address of the memory exception. 'is_write' is 1 if a
write caused the exception and otherwise 0'. 'old_set' is the
signal set which should be restored */
-static inline int handle_cpu_signal(unsigned long pc, unsigned long address,
+static inline int handle_cpu_signal(uintptr_t pc, unsigned long address,
int is_write, sigset_t *old_set,
void *puc)
{
TranslationBlock *tb;
int ret;
- if (cpu_single_env) {
- env = cpu_single_env; /* XXX: find a correct solution for multithread */
- }
#if defined(DEBUG_SIGNAL)
qemu_printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
pc, address, is_write, *(unsigned long *)old_set);
#endif
/* XXX: locking issue */
- if (is_write && page_unprotect(h2g(address), pc, puc)) {
+ if (is_write && h2g_valid(address)
+ && page_unprotect(h2g(address), pc, puc)) {
return 1;
}
/* see if it is an MMU fault */
- ret = cpu_handle_mmu_fault(env, address, is_write, MMU_USER_IDX, 0);
+ ret = cpu_handle_mmu_fault(cpu_single_env, address, is_write,
+ MMU_USER_IDX);
if (ret < 0) {
return 0; /* not an MMU fault */
}
if (tb) {
/* the PC is inside the translated code. It means that we have
a virtual CPU fault */
- cpu_restore_state(tb, env, pc);
+ cpu_restore_state(tb, cpu_single_env, pc);
}
/* we restore the process signal mask as the sigreturn should
do it (XXX: use sigsetjmp) */
sigprocmask(SIG_SETMASK, old_set, NULL);
- exception_action(env);
+ exception_action(cpu_single_env);
/* never comes here */
return 1;
int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
- struct siginfo *info = pinfo;
+ siginfo_t *info = pinfo;
struct ucontext *uc = puc;
unsigned long pc = uc->uc_mcontext.sc_iaoq[0];
uint32_t insn = *(uint32_t *)pc;
#error host CPU specific signal handler needed
#endif
-
-#if defined(TARGET_I386)
-
-void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector)
-{
- CPUX86State *saved_env;
-
- saved_env = env;
- env = s;
- if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) {
- selector &= 0xffff;
- cpu_x86_load_seg_cache(env, seg_reg, selector,
- (selector << 4), 0xffff, 0);
- } else {
- helper_load_seg(seg_reg, selector);
- }
- env = saved_env;
-}
-
-void cpu_x86_fsave(CPUX86State *s, target_ulong ptr, int data32)
-{
- CPUX86State *saved_env;
-
- saved_env = env;
- env = s;
-
- helper_fsave(ptr, data32);
-
- env = saved_env;
-}
-
-void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32)
-{
- CPUX86State *saved_env;
-
- saved_env = env;
- env = s;
-
- helper_frstor(ptr, data32);
-
- env = saved_env;
-}
-
-#endif /* TARGET_I386 */