diff options
Diffstat (limited to 'user-exec.c')
| -rw-r--r-- | user-exec.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/user-exec.c b/user-exec.c index fa7f1f1de9..d45ca8e877 100644 --- a/user-exec.c +++ b/user-exec.c @@ -20,6 +20,7 @@ #include "cpu.h" #include "disas/disas.h" #include "tcg.h" +#include "qemu/bitops.h" #undef EAX #undef ECX @@ -81,6 +82,7 @@ static inline int handle_cpu_signal(uintptr_t pc, unsigned long address, int is_write, sigset_t *old_set, void *puc) { + CPUArchState *env; int ret; #if defined(DEBUG_SIGNAL) @@ -93,9 +95,9 @@ static inline int handle_cpu_signal(uintptr_t pc, unsigned long address, return 1; } + env = current_cpu->env_ptr; /* see if it is an MMU fault */ - ret = cpu_handle_mmu_fault(cpu_single_env, address, is_write, - MMU_USER_IDX); + ret = cpu_handle_mmu_fault(env, address, is_write, MMU_USER_IDX); if (ret < 0) { return 0; /* not an MMU fault */ } @@ -103,12 +105,12 @@ static inline int handle_cpu_signal(uintptr_t pc, unsigned long address, return 1; /* the MMU fault was handled without causing real CPU fault */ } /* now we have a real cpu fault */ - cpu_restore_state(cpu_single_env, pc); + cpu_restore_state(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(cpu_single_env); + exception_action(env); /* never comes here */ return 1; @@ -441,8 +443,11 @@ int cpu_signal_handler(int host_signum, void *pinfo, #else pc = uc->uc_mcontext.arm_pc; #endif - /* XXX: compute is_write */ - is_write = 0; + + /* error_code is the FSR value, in which bit 11 is WnR (assuming a v6 or + * later processor; on v5 we will always report this as a read). + */ + is_write = extract32(uc->uc_mcontext.error_code, 11, 1); return handle_cpu_signal(pc, (unsigned long)info->si_addr, is_write, &uc->uc_sigmask, puc); |