diff options
| -rw-r--r-- | arch/x86/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86/ia32/sys_ia32.c | 76 | ||||
| -rw-r--r-- | arch/x86/include/asm/ia32.h | 8 | ||||
| -rw-r--r-- | arch/x86/include/asm/sys_ia32.h | 3 | ||||
| -rw-r--r-- | arch/x86/syscalls/syscall_32.tbl | 2 | ||||
| -rw-r--r-- | arch/x86/syscalls/syscall_64.tbl | 2 |
6 files changed, 3 insertions, 89 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5bda2d7f1b69..0271a1411af3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -114,6 +114,7 @@ config X86 select MODULES_USE_ELF_RELA if X86_64 select CLONE_BACKWARDS if X86_32 select GENERIC_SIGALTSTACK + select GENERIC_COMPAT_RT_SIGACTION select GENERIC_COMPAT_RT_SIGQUEUEINFO select GENERIC_COMPAT_RT_SIGPENDING select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index cdf22ba9fa3a..ffe9751b1486 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -172,82 +172,6 @@ asmlinkage long sys32_mprotect(unsigned long start, size_t len, return sys_mprotect(start, len, prot); } -asmlinkage long sys32_rt_sigaction(int sig, struct sigaction32 __user *act, - struct sigaction32 __user *oact, - unsigned int sigsetsize) -{ - struct k_sigaction new_ka, old_ka; - int ret; - compat_sigset_t set32; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(compat_sigset_t)) - return -EINVAL; - - if (act) { - compat_uptr_t handler, restorer; - - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_flags, &act->sa_flags) || - __get_user(restorer, &act->sa_restorer) || - __copy_from_user(&set32, &act->sa_mask, - sizeof(compat_sigset_t))) - return -EFAULT; - new_ka.sa.sa_handler = compat_ptr(handler); - new_ka.sa.sa_restorer = compat_ptr(restorer); - - /* - * FIXME: here we rely on _COMPAT_NSIG_WORS to be >= - * than _NSIG_WORDS << 1 - */ - switch (_NSIG_WORDS) { - case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] - | (((long)set32.sig[7]) << 32); - case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] - | (((long)set32.sig[5]) << 32); - case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] - | (((long)set32.sig[3]) << 32); - case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] - | (((long)set32.sig[1]) << 32); - } - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - /* - * FIXME: here we rely on _COMPAT_NSIG_WORS to be >= - * than _NSIG_WORDS << 1 - */ - switch (_NSIG_WORDS) { - case 4: - set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); - set32.sig[6] = old_ka.sa.sa_mask.sig[3]; - case 3: - set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); - set32.sig[4] = old_ka.sa.sa_mask.sig[2]; - case 2: - set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); - set32.sig[2] = old_ka.sa.sa_mask.sig[1]; - case 1: - set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); - set32.sig[0] = old_ka.sa.sa_mask.sig[0]; - } - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(ptr_to_compat(old_ka.sa.sa_handler), - &oact->sa_handler) || - __put_user(ptr_to_compat(old_ka.sa.sa_restorer), - &oact->sa_restorer) || - __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || - __copy_to_user(&oact->sa_mask, &set32, - sizeof(compat_sigset_t))) - return -EFAULT; - } - - return ret; -} - asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act, struct old_sigaction32 __user *oact) { diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h index 4c6da2e4bb1d..259372d1ee96 100644 --- a/arch/x86/include/asm/ia32.h +++ b/arch/x86/include/asm/ia32.h @@ -13,14 +13,6 @@ #include <asm/sigcontext32.h> /* signal.h */ -struct sigaction32 { - unsigned int sa_handler; /* Really a pointer, but need to deal - with 32 bits */ - unsigned int sa_flags; - unsigned int sa_restorer; /* Another 32 bit pointer */ - compat_sigset_t sa_mask; /* A 32 bit mask */ -}; - struct old_sigaction32 { unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */ diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h index c603c8f7d6d5..2bf18f1158bc 100644 --- a/arch/x86/include/asm/sys_ia32.h +++ b/arch/x86/include/asm/sys_ia32.h @@ -32,10 +32,7 @@ struct mmap_arg_struct32; asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *); asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long); -struct sigaction32; struct old_sigaction32; -asmlinkage long sys32_rt_sigaction(int, struct sigaction32 __user *, - struct sigaction32 __user *, unsigned int); asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *, struct old_sigaction32 __user *); asmlinkage long sys32_alarm(unsigned int); diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl index f6006b2c1936..2fada84c16ab 100644 --- a/arch/x86/syscalls/syscall_32.tbl +++ b/arch/x86/syscalls/syscall_32.tbl @@ -180,7 +180,7 @@ 171 i386 getresgid sys_getresgid16 172 i386 prctl sys_prctl 173 i386 rt_sigreturn sys_rt_sigreturn stub32_rt_sigreturn -174 i386 rt_sigaction sys_rt_sigaction sys32_rt_sigaction +174 i386 rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction 175 i386 rt_sigprocmask sys_rt_sigprocmask 176 i386 rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending 177 i386 rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl index 6ceaa636e808..38ae65dfd14f 100644 --- a/arch/x86/syscalls/syscall_64.tbl +++ b/arch/x86/syscalls/syscall_64.tbl @@ -325,7 +325,7 @@ # x32-specific system call numbers start at 512 to avoid cache impact # for native 64-bit operation. # -512 x32 rt_sigaction sys32_rt_sigaction +512 x32 rt_sigaction compat_sys_rt_sigaction 513 x32 rt_sigreturn stub_x32_rt_sigreturn 514 x32 ioctl compat_sys_ioctl 515 x32 readv compat_sys_readv |