diff options
Diffstat (limited to 'arch/um/os-Linux')
| -rw-r--r-- | arch/um/os-Linux/drivers/tuntap_user.c | 4 | ||||
| -rw-r--r-- | arch/um/os-Linux/skas/mem.c | 2 | ||||
| -rw-r--r-- | arch/um/os-Linux/skas/process.c | 21 | ||||
| -rw-r--r-- | arch/um/os-Linux/start_up.c | 1 | ||||
| -rw-r--r-- | arch/um/os-Linux/sys-i386/registers.c | 5 | ||||
| -rw-r--r-- | arch/um/os-Linux/sys-x86_64/registers.c | 5 |
6 files changed, 27 insertions, 11 deletions
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index 52945338b64d..87c3aa0252db 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c @@ -122,6 +122,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, return(-EINVAL); } *fd_out = ((int *) CMSG_DATA(cmsg))[0]; + os_set_exec_close(*fd_out, 1); return(0); } @@ -137,7 +138,8 @@ static int tuntap_open(void *data) return(err); if(pri->fixed_config){ - pri->fd = os_open_file("/dev/net/tun", of_rdwr(OPENFLAGS()), 0); + pri->fd = os_open_file("/dev/net/tun", + of_cloexec(of_rdwr(OPENFLAGS())), 0); if(pri->fd < 0){ printk("Failed to open /dev/net/tun, err = %d\n", -pri->fd); diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c index 9890e9090f58..fbb080c2fc26 100644 --- a/arch/um/os-Linux/skas/mem.c +++ b/arch/um/os-Linux/skas/mem.c @@ -60,7 +60,7 @@ static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr) multi_count++; - get_safe_registers(regs); + get_safe_registers(regs, NULL); regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + ((unsigned long) &batch_syscall_stub - (unsigned long) &__syscall_stub_start); diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 120a21c5883f..bbf34cb91ce1 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -310,16 +310,12 @@ void userspace(union uml_pt_regs *regs) } } } -#define INIT_JMP_NEW_THREAD 0 -#define INIT_JMP_REMOVE_SIGSTACK 1 -#define INIT_JMP_CALLBACK 2 -#define INIT_JMP_HALT 3 -#define INIT_JMP_REBOOT 4 int copy_context_skas0(unsigned long new_stack, int pid) { int err; - unsigned long regs[MAX_REG_NR]; + unsigned long regs[HOST_FRAME_SIZE]; + unsigned long fp_regs[HOST_FP_SIZE]; unsigned long current_stack = current_stub_stack(); struct stub_data *data = (struct stub_data *) current_stack; struct stub_data *child_data = (struct stub_data *) new_stack; @@ -334,7 +330,7 @@ int copy_context_skas0(unsigned long new_stack, int pid) .timer = ((struct itimerval) { { 0, 1000000 / hz() }, { 0, 1000000 / hz() }})}); - get_safe_registers(regs); + get_safe_registers(regs, fp_regs); /* Set parent's instruction pointer to start of clone-stub */ regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + @@ -350,6 +346,11 @@ int copy_context_skas0(unsigned long new_stack, int pid) panic("copy_context_skas0 : PTRACE_SETREGS failed, " "pid = %d, errno = %d\n", pid, errno); + err = ptrace_setfpregs(pid, fp_regs); + if(err < 0) + panic("copy_context_skas0 : PTRACE_SETFPREGS failed, " + "pid = %d, errno = %d\n", pid, errno); + /* set a well known return code for detection of child write failure */ child_data->err = 12345678; @@ -457,6 +458,12 @@ void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr, set_signals(flags); } +#define INIT_JMP_NEW_THREAD 0 +#define INIT_JMP_REMOVE_SIGSTACK 1 +#define INIT_JMP_CALLBACK 2 +#define INIT_JMP_HALT 3 +#define INIT_JMP_REBOOT 4 + void thread_wait(void *sw, void *fb) { sigjmp_buf buf, **switch_buf = sw, *fork_buf; diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 6c5b17ed59e1..829d6b0d8b02 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -49,6 +49,7 @@ static int ptrace_child(void *arg) int pid = os_getpid(), ppid = getppid(); int sc_result; + change_sig(SIGWINCH, 0); if(ptrace(PTRACE_TRACEME, 0, 0, 0) < 0){ perror("ptrace"); os_kill_process(pid, 0); diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c index aee4812333c6..7a6f6b99ceff 100644 --- a/arch/um/os-Linux/sys-i386/registers.c +++ b/arch/um/os-Linux/sys-i386/registers.c @@ -122,9 +122,12 @@ void init_registers(int pid) err); } -void get_safe_registers(unsigned long *regs) +void get_safe_registers(unsigned long *regs, unsigned long *fp_regs) { memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long)); + if(fp_regs != NULL) + memcpy(fp_regs, exec_fp_regs, + HOST_FP_SIZE * sizeof(unsigned long)); } void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer) diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c index 4b638dfb52b0..001941fa1a1e 100644 --- a/arch/um/os-Linux/sys-x86_64/registers.c +++ b/arch/um/os-Linux/sys-x86_64/registers.c @@ -70,9 +70,12 @@ void init_registers(int pid) err); } -void get_safe_registers(unsigned long *regs) +void get_safe_registers(unsigned long *regs, unsigned long *fp_regs) { memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long)); + if(fp_regs != NULL) + memcpy(fp_regs, exec_fp_regs, + HOST_FP_SIZE * sizeof(unsigned long)); } void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer) |