diff options
Diffstat (limited to 'arch/parisc')
-rw-r--r-- | arch/parisc/Kconfig | 3 | ||||
-rw-r--r-- | arch/parisc/hpux/fs.c | 21 | ||||
-rw-r--r-- | arch/parisc/hpux/gate.S | 2 | ||||
-rw-r--r-- | arch/parisc/include/asm/Kbuild | 2 | ||||
-rw-r--r-- | arch/parisc/include/asm/compat.h | 59 | ||||
-rw-r--r-- | arch/parisc/include/asm/exec.h | 6 | ||||
-rw-r--r-- | arch/parisc/include/asm/module.h | 16 | ||||
-rw-r--r-- | arch/parisc/include/asm/thread_info.h | 5 | ||||
-rw-r--r-- | arch/parisc/include/uapi/asm/Kbuild | 3 | ||||
-rw-r--r-- | arch/parisc/kernel/cache.c | 3 | ||||
-rw-r--r-- | arch/parisc/kernel/pdc_cons.c | 1 | ||||
-rw-r--r-- | arch/parisc/kernel/process.c | 7 | ||||
-rw-r--r-- | arch/parisc/kernel/signal.c | 45 | ||||
-rw-r--r-- | arch/parisc/kernel/signal32.h | 52 | ||||
-rw-r--r-- | arch/parisc/kernel/sys_parisc32.c | 4 | ||||
-rw-r--r-- | arch/parisc/kernel/syscall.S | 9 |
16 files changed, 113 insertions, 125 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 3ff21b5..11def45 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -13,12 +13,15 @@ config PARISC select HAVE_PERF_EVENTS select GENERIC_ATOMIC64 if !64BIT select HAVE_GENERIC_HARDIRQS + select BROKEN_RODATA select GENERIC_IRQ_PROBE select GENERIC_PCI_IOMAP select IRQ_PER_CPU select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_SMP_IDLE_THREAD select GENERIC_STRNCPY_FROM_USER + select HAVE_MOD_ARCH_SPECIFIC + select MODULES_USE_ELF_RELA help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c index c71eb6c..a0760b8 100644 --- a/arch/parisc/hpux/fs.c +++ b/arch/parisc/hpux/fs.c @@ -34,14 +34,14 @@ int hpux_execve(struct pt_regs *regs) { int error; - char *filename; + struct filename *filename; filename = getname((const char __user *) regs->gr[26]); error = PTR_ERR(filename); if (IS_ERR(filename)) goto out; - error = do_execve(filename, + error = do_execve(filename->name, (const char __user *const __user *) regs->gr[25], (const char __user *const __user *) regs->gr[24], regs); @@ -109,33 +109,32 @@ Efault: int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned int count) { - struct file * file; + struct fd arg; struct hpux_dirent __user * lastdirent; struct getdents_callback buf; - int error = -EBADF; + int error; - file = fget(fd); - if (!file) - goto out; + arg = fdget(fd); + if (!arg.file) + return -EBADF; buf.current_dir = dirent; buf.previous = NULL; buf.count = count; buf.error = 0; - error = vfs_readdir(file, filldir, &buf); + error = vfs_readdir(arg.file, filldir, &buf); if (error >= 0) error = buf.error; lastdirent = buf.previous; if (lastdirent) { - if (put_user(file->f_pos, &lastdirent->d_off)) + if (put_user(arg.file->f_pos, &lastdirent->d_off)) error = -EFAULT; else error = count - buf.count; } - fput(file); -out: + fdput(arg); return error; } diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S index 38a1c1b..0114688 100644 --- a/arch/parisc/hpux/gate.S +++ b/arch/parisc/hpux/gate.S @@ -71,7 +71,7 @@ ENTRY(hpux_gateway_page) STREG %r26, TASK_PT_GR26(%r1) /* 1st argument */ STREG %r27, TASK_PT_GR27(%r1) /* user dp */ STREG %r28, TASK_PT_GR28(%r1) /* return value 0 */ - STREG %r28, TASK_PT_ORIG_R28(%r1) /* return value 0 (saved for signals) */ + STREG %r0, TASK_PT_ORIG_R28(%r1) /* don't prohibit restarts */ STREG %r29, TASK_PT_GR29(%r1) /* 8th argument */ STREG %r31, TASK_PT_GR31(%r1) /* preserve syscall return ptr */ diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild index 4383707..458371a 100644 --- a/arch/parisc/include/asm/Kbuild +++ b/arch/parisc/include/asm/Kbuild @@ -1,4 +1,6 @@ include include/asm-generic/Kbuild.asm header-y += pdc.h +generic-y += clkdev.h generic-y += word-at-a-time.h +generic-y += exec.h diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h index 760f331..db7a662 100644 --- a/arch/parisc/include/asm/compat.h +++ b/arch/parisc/include/asm/compat.h @@ -36,6 +36,7 @@ typedef s64 compat_s64; typedef u32 compat_uint_t; typedef u32 compat_ulong_t; typedef u64 compat_u64; +typedef u32 compat_uptr_t; struct compat_timespec { compat_time_t tv_sec; @@ -127,6 +128,63 @@ typedef u32 compat_old_sigset_t; /* at least 32 bits */ typedef u32 compat_sigset_word; +typedef union compat_sigval { + compat_int_t sival_int; + compat_uptr_t sival_ptr; +} compat_sigval_t; + +typedef struct compat_siginfo { + int si_signo; + int si_errno; + int si_code; + + union { + int _pad[128/sizeof(int) - 3]; + + /* kill() */ + struct { + unsigned int _pid; /* sender's pid */ + unsigned int _uid; /* sender's uid */ + } _kill; + + /* POSIX.1b timers */ + struct { + compat_timer_t _tid; /* timer id */ + int _overrun; /* overrun count */ + char _pad[sizeof(unsigned int) - sizeof(int)]; + compat_sigval_t _sigval; /* same as below */ + int _sys_private; /* not to be passed to user */ + } _timer; + + /* POSIX.1b signals */ + struct { + unsigned int _pid; /* sender's pid */ + unsigned int _uid; /* sender's uid */ + compat_sigval_t _sigval; + } _rt; + + /* SIGCHLD */ + struct { + unsigned int _pid; /* which child */ + unsigned int _uid; /* sender's uid */ + int _status; /* exit code */ + compat_clock_t _utime; + compat_clock_t _stime; + } _sigchld; + + /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ + struct { + unsigned int _addr; /* faulting insn/memory ref. */ + } _sigfault; + + /* SIGPOLL */ + struct { + int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ + int _fd; + } _sigpoll; + } _sifields; +} compat_siginfo_t; + #define COMPAT_OFF_T_MAX 0x7fffffff #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL @@ -136,7 +194,6 @@ typedef u32 compat_sigset_word; * as pointers because the syscall entry code will have * appropriately converted them already. */ -typedef u32 compat_uptr_t; static inline void __user *compat_ptr(compat_uptr_t uptr) { diff --git a/arch/parisc/include/asm/exec.h b/arch/parisc/include/asm/exec.h deleted file mode 100644 index 6bb5af7..0000000 --- a/arch/parisc/include/asm/exec.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __PARISC_EXEC_H -#define __PARISC_EXEC_H - -#define arch_align_stack(x) (x) - -#endif /* __PARISC_EXEC_H */ diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h index 1f41234..bab37e9 100644 --- a/arch/parisc/include/asm/module.h +++ b/arch/parisc/include/asm/module.h @@ -1,21 +1,11 @@ #ifndef _ASM_PARISC_MODULE_H #define _ASM_PARISC_MODULE_H + +#include <asm-generic/module.h> + /* * This file contains the parisc architecture specific module code. */ -#ifdef CONFIG_64BIT -#define Elf_Shdr Elf64_Shdr -#define Elf_Sym Elf64_Sym -#define Elf_Ehdr Elf64_Ehdr -#define Elf_Addr Elf64_Addr -#define Elf_Rela Elf64_Rela -#else -#define Elf_Shdr Elf32_Shdr -#define Elf_Sym Elf32_Sym -#define Elf_Ehdr Elf32_Ehdr -#define Elf_Addr Elf32_Addr -#define Elf_Rela Elf32_Rela -#endif struct unwind_table; diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h index 22b4726..d1fb79a 100644 --- a/arch/parisc/include/asm/thread_info.h +++ b/arch/parisc/include/asm/thread_info.h @@ -68,13 +68,16 @@ struct thread_info { #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_32BIT (1 << TIF_32BIT) -#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP) #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \ _TIF_NEED_RESCHED) +#define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ + _TIF_BLOCKSTEP) + +#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) #endif /* __KERNEL__ */ diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild new file mode 100644 index 0000000..baebb3d --- /dev/null +++ b/arch/parisc/include/uapi/asm/Kbuild @@ -0,0 +1,3 @@ +# UAPI Header export list +include include/uapi/asm-generic/Kbuild.asm + diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index 9d18189..48e16dc 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -276,7 +276,6 @@ void flush_dcache_page(struct page *page) { struct address_space *mapping = page_mapping(page); struct vm_area_struct *mpnt; - struct prio_tree_iter iter; unsigned long offset; unsigned long addr, old_addr = 0; pgoff_t pgoff; @@ -299,7 +298,7 @@ void flush_dcache_page(struct page *page) * to flush one address here for them all to become coherent */ flush_dcache_mmap_lock(mapping); - vma_prio_tree_foreach(mpnt, &iter, &mapping->i_mmap, pgoff, pgoff) { + vma_interval_tree_foreach(mpnt, &mapping->i_mmap, pgoff, pgoff) { offset = (pgoff - mpnt->vm_pgoff) << PAGE_SHIFT; addr = mpnt->vm_start + offset; diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 47341aa..8823863 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -202,6 +202,7 @@ static int __init pdc_console_tty_driver_init(void) pdc_console_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS; tty_set_operations(pdc_console_tty_driver, &pdc_console_tty_ops); + tty_port_link_device(&tty_port, pdc_console_tty_driver, 0); err = tty_register_driver(pdc_console_tty_driver); if (err) { diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 2c05a92..cbc3721 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -48,6 +48,7 @@ #include <linux/unistd.h> #include <linux/kallsyms.h> #include <linux/uaccess.h> +#include <linux/rcupdate.h> #include <asm/io.h> #include <asm/asm-offsets.h> @@ -69,8 +70,10 @@ void cpu_idle(void) /* endless idle loop with no priority at all */ while (1) { + rcu_idle_enter(); while (!need_resched()) barrier(); + rcu_idle_exit(); schedule_preempt_disabled(); check_pgt_cache(); } @@ -339,13 +342,13 @@ unsigned long thread_saved_pc(struct task_struct *t) asmlinkage int sys_execve(struct pt_regs *regs) { int error; - char *filename; + struct filename *filename; filename = getname((const char __user *) regs->gr[26]); error = PTR_ERR(filename); if (IS_ERR(filename)) goto out; - error = do_execve(filename, + error = do_execve(filename->name, (const char __user *const __user *) regs->gr[25], (const char __user *const __user *) regs->gr[24], regs); diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 594459b..5379969 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -113,6 +113,8 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) (usp - sigframe_size); DBG(2,"sys_rt_sigreturn: frame is %p\n", frame); + regs->orig_r28 = 1; /* no restarts for sigreturn */ + #ifdef CONFIG_64BIT compat_frame = (struct compat_rt_sigframe __user *)frame; @@ -437,7 +439,7 @@ give_sigsegv: * OK, we're invoking a handler. */ -static long +static void handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, struct pt_regs *regs, int in_syscall) { @@ -447,7 +449,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, /* Set up the stack frame */ if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall)) - return 0; + return; signal_delivered(sig, info, ka, regs, test_thread_flag(TIF_SINGLESTEP) || @@ -455,13 +457,14 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, DBG(1,KERN_DEBUG "do_signal: Exit (success), regs->gr[28] = %ld\n", regs->gr[28]); - - return 1; } static inline void syscall_restart(struct pt_regs *regs, struct k_sigaction *ka) { + if (regs->orig_r28) + return; + regs->orig_r28 = 1; /* no more restarts */ /* Check the return code */ switch (regs->gr[28]) { case -ERESTART_RESTARTBLOCK: @@ -482,8 +485,6 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka) * we have to do is fiddle the return pointer. */ regs->gr[31] -= 8; /* delayed branching */ - /* Preserve original r28. */ - regs->gr[28] = regs->orig_r28; break; } } @@ -491,6 +492,9 @@ syscall_restart(struct pt_regs *regs, struct k_sigaction *ka) static inline void insert_restart_trampoline(struct pt_regs *regs) { + if (regs->orig_r28) + return; + regs->orig_r28 = 1; /* no more restarts */ switch(regs->gr[28]) { case -ERESTART_RESTARTBLOCK: { /* Restart the system call - no handlers present */ @@ -525,9 +529,6 @@ insert_restart_trampoline(struct pt_regs *regs) flush_user_icache_range(regs->gr[30], regs->gr[30] + 4); regs->gr[31] = regs->gr[30] + 8; - /* Preserve original r28. */ - regs->gr[28] = regs->orig_r28; - return; } case -ERESTARTNOHAND: @@ -539,9 +540,6 @@ insert_restart_trampoline(struct pt_regs *regs) * slot of the branch external instruction. */ regs->gr[31] -= 8; - /* Preserve original r28. */ - regs->gr[28] = regs->orig_r28; - return; } default: @@ -570,30 +568,17 @@ do_signal(struct pt_regs *regs, long in_syscall) DBG(1,"\ndo_signal: regs=0x%p, sr7 %#lx, in_syscall=%d\n", regs, regs->sr[7], in_syscall); - /* Everyone else checks to see if they are in kernel mode at - this point and exits if that's the case. I'm not sure why - we would be called in that case, but for some reason we - are. */ - - /* May need to force signal if handle_signal failed to deliver */ - while (1) { - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); + signr = get_signal_to_deliver(&info, &ka, regs, NULL); + DBG(3,"do_signal: signr = %d, regs->gr[28] = %ld\n", signr, regs->gr[28]); - if (signr <= 0) - break; - + if (signr > 0) { /* Restart a system call if necessary. */ if (in_syscall) syscall_restart(regs, &ka); - /* Whee! Actually deliver the signal. If the - delivery failed, we need to continue to iterate in - this loop so we can deliver the SIGSEGV... */ - if (handle_signal(signr, &info, &ka, regs, in_syscall)) - return; + handle_signal(signr, &info, &ka, regs, in_syscall); + return; } - /* end of while(1) looping forever if we can't force a signal */ /* Did we come from a system call? */ if (in_syscall) diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h index c780084..08a88b5 100644 --- a/arch/parisc/kernel/signal32.h +++ b/arch/parisc/kernel/signal32.h @@ -55,58 +55,6 @@ struct k_sigaction32 { struct compat_sigaction sa; }; -typedef struct compat_siginfo { - int si_signo; - int si_errno; - int si_code; - - union { - int _pad[((128/sizeof(int)) - 3)]; - - /* kill() */ - struct { - unsigned int _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - } _kill; - - /* POSIX.1b timers */ - struct { - compat_timer_t _tid; /* timer id */ - int _overrun; /* overrun count */ - char _pad[sizeof(unsigned int) - sizeof(int)]; - compat_sigval_t _sigval; /* same as below */ - int _sys_private; /* not to be passed to user */ - } _timer; - - /* POSIX.1b signals */ - struct { - unsigned int _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - compat_sigval_t _sigval; - } _rt; - - /* SIGCHLD */ - struct { - unsigned int _pid; /* which child */ - unsigned int _uid; /* sender's uid */ - int _status; /* exit code */ - compat_clock_t _utime; - compat_clock_t _stime; - } _sigchld; - - /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ - struct { - unsigned int _addr; /* faulting insn/memory ref. */ - } _sigfault; - - /* SIGPOLL */ - struct { - int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ - int _fd; - } _sigpoll; - } _sifields; -} compat_siginfo_t; - int copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from); int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from); diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c index dc9a624..bf5b93a 100644 --- a/arch/parisc/kernel/sys_parisc32.c +++ b/arch/parisc/kernel/sys_parisc32.c @@ -60,14 +60,14 @@ asmlinkage int sys32_execve(struct pt_regs *regs) { int error; - char *filename; + struct filename *filename; DBG(("sys32_execve(%p) r26 = 0x%lx\n", regs, regs->gr[26])); filename = getname((const char __user *) regs->gr[26]); error = PTR_ERR(filename); if (IS_ERR(filename)) goto out; - error = compat_do_execve(filename, compat_ptr(regs->gr[25]), + error = compat_do_execve(filename->name, compat_ptr(regs->gr[25]), compat_ptr(regs->gr[24]), regs); putname(filename); out: diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 82a52b2..86742df 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -156,7 +156,7 @@ linux_gateway_entry: STREG %r26, TASK_PT_GR26(%r1) /* 1st argument */ STREG %r27, TASK_PT_GR27(%r1) /* user dp */ STREG %r28, TASK_PT_GR28(%r1) /* return value 0 */ - STREG %r28, TASK_PT_ORIG_R28(%r1) /* return value 0 (saved for signals) */ + STREG %r0, TASK_PT_ORIG_R28(%r1) /* don't prohibit restarts */ STREG %r29, TASK_PT_GR29(%r1) /* return value 1 */ STREG %r31, TASK_PT_GR31(%r1) /* preserve syscall return ptr */ @@ -180,9 +180,10 @@ linux_gateway_entry: /* Are we being ptraced? */ mfctl %cr30, %r1 - LDREG TI_TASK(%r1),%r1 - ldw TASK_PTRACE(%r1), %r1 - bb,<,n %r1,31,.Ltracesys + LDREG TI_FLAGS(%r1),%r1 + ldi _TIF_SYSCALL_TRACE_MASK, %r19 + and,COND(=) %r1, %r19, %r0 + b,n .Ltracesys /* Note! We cannot use the syscall table that is mapped nearby since the gateway page is mapped execute-only. */ |