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-rw-r--r--arch/cris/arch-v10/kernel/entry.S2
-rw-r--r--arch/cris/arch-v10/kernel/ptrace.c51
-rw-r--r--arch/cris/arch-v32/kernel/entry.S2
-rw-r--r--arch/cris/arch-v32/kernel/ptrace.c109
-rw-r--r--arch/cris/include/arch-v32/arch/ptrace.h1
-rw-r--r--arch/cris/include/asm/pci.h8
-rw-r--r--arch/cris/include/asm/unistd.h2
-rw-r--r--arch/cris/kernel/sys_cris.c96
8 files changed, 35 insertions, 236 deletions
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index c52bef39e25..0d6420d087f 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -692,7 +692,7 @@ sys_call_table:
.long sys_swapon
.long sys_reboot
.long sys_old_readdir
- .long old_mmap /* 90 */
+ .long sys_old_mmap /* 90 */
.long sys_munmap
.long sys_truncate
.long sys_ftruncate
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index ee505b2eb4d..e70c804e937 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -127,57 +127,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = 0;
break;
- case PTRACE_SYSCALL:
- case PTRACE_CONT:
- ret = -EIO;
-
- if (!valid_signal(data))
- break;
-
- if (request == PTRACE_SYSCALL) {
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- else {
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
-
- child->exit_code = data;
-
- /* TODO: make sure any pending breakpoint is killed */
- wake_up_process(child);
- ret = 0;
-
- break;
-
- /* Make the child exit by sending it a sigkill. */
- case PTRACE_KILL:
- ret = 0;
-
- if (child->exit_state == EXIT_ZOMBIE)
- break;
-
- child->exit_code = SIGKILL;
-
- /* TODO: make sure any pending breakpoint is killed */
- wake_up_process(child);
- break;
-
- /* Set the trap flag. */
- case PTRACE_SINGLESTEP:
- ret = -EIO;
-
- if (!valid_signal(data))
- break;
-
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
- /* TODO: set some clever breakpoint mechanism... */
-
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
-
/* Get all GP registers from the child. */
case PTRACE_GETREGS: {
int i;
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index 435b9671bd4..1f39861eac8 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -615,7 +615,7 @@ sys_call_table:
.long sys_swapon
.long sys_reboot
.long sys_old_readdir
- .long old_mmap /* 90 */
+ .long sys_old_mmap /* 90 */
.long sys_munmap
.long sys_truncate
.long sys_ftruncate
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index dd401473f5b..f4ebd1e7d0f 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -78,6 +78,35 @@ int put_reg(struct task_struct *task, unsigned int regno, unsigned long data)
return 0;
}
+void user_enable_single_step(struct task_struct *child)
+{
+ unsigned long tmp;
+
+ /*
+ * Set up SPC if not set already (in which case we have no other
+ * choice but to trust it).
+ */
+ if (!get_reg(child, PT_SPC)) {
+ /* In case we're stopped in a delay slot. */
+ tmp = get_reg(child, PT_ERP) & ~1;
+ put_reg(child, PT_SPC, tmp);
+ }
+ tmp = get_reg(child, PT_CCS) | SBIT_USER;
+ put_reg(child, PT_CCS, tmp);
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+ put_reg(child, PT_SPC, 0);
+
+ if (!get_debugreg(child->pid, PT_BP_CTRL)) {
+ unsigned long tmp;
+ /* If no h/w bp configured, disable S bit. */
+ tmp = get_reg(child, PT_CCS) & ~SBIT_USER;
+ put_reg(child, PT_CCS, tmp);
+ }
+}
+
/*
* Called by kernel/ptrace.c when detaching.
*
@@ -89,8 +118,7 @@ ptrace_disable(struct task_struct *child)
unsigned long tmp;
/* Deconfigure SPC and S-bit. */
- tmp = get_reg(child, PT_CCS) & ~SBIT_USER;
- put_reg(child, PT_CCS, tmp);
+ user_disable_single_step(child);
put_reg(child, PT_SPC, 0);
/* Deconfigure any watchpoints associated with the child. */
@@ -169,83 +197,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = 0;
break;
- case PTRACE_SYSCALL:
- case PTRACE_CONT:
- ret = -EIO;
-
- if (!valid_signal(data))
- break;
-
- /* Continue means no single-step. */
- put_reg(child, PT_SPC, 0);
-
- if (!get_debugreg(child->pid, PT_BP_CTRL)) {
- unsigned long tmp;
- /* If no h/w bp configured, disable S bit. */
- tmp = get_reg(child, PT_CCS) & ~SBIT_USER;
- put_reg(child, PT_CCS, tmp);
- }
-
- if (request == PTRACE_SYSCALL) {
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
- else {
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- }
-
- child->exit_code = data;
-
- /* TODO: make sure any pending breakpoint is killed */
- wake_up_process(child);
- ret = 0;
-
- break;
-
- /* Make the child exit by sending it a sigkill. */
- case PTRACE_KILL:
- ret = 0;
-
- if (child->exit_state == EXIT_ZOMBIE)
- break;
-
- child->exit_code = SIGKILL;
-
- /* Deconfigure single-step and h/w bp. */
- ptrace_disable(child);
-
- /* TODO: make sure any pending breakpoint is killed */
- wake_up_process(child);
- break;
-
- /* Set the trap flag. */
- case PTRACE_SINGLESTEP: {
- unsigned long tmp;
- ret = -EIO;
-
- /* Set up SPC if not set already (in which case we have
- no other choice but to trust it). */
- if (!get_reg(child, PT_SPC)) {
- /* In case we're stopped in a delay slot. */
- tmp = get_reg(child, PT_ERP) & ~1;
- put_reg(child, PT_SPC, tmp);
- }
- tmp = get_reg(child, PT_CCS) | SBIT_USER;
- put_reg(child, PT_CCS, tmp);
-
- if (!valid_signal(data))
- break;
-
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
- /* TODO: set some clever breakpoint mechanism... */
-
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
-
- }
-
/* Get all GP registers from the child. */
case PTRACE_GETREGS: {
int i;
diff --git a/arch/cris/include/arch-v32/arch/ptrace.h b/arch/cris/include/arch-v32/arch/ptrace.h
index 41f4e8662bc..ffca8d0f2e1 100644
--- a/arch/cris/include/arch-v32/arch/ptrace.h
+++ b/arch/cris/include/arch-v32/arch/ptrace.h
@@ -108,6 +108,7 @@ struct switch_stack {
#ifdef __KERNEL__
+#define arch_has_single_step() (1)
#define user_mode(regs) (((regs)->ccs & (1 << (U_CCS_BITNR + CCS_SHIFT))) != 0)
#define instruction_pointer(regs) ((regs)->erp)
extern void show_regs(struct pt_regs *);
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 730ce40fdd0..9f1cd56da28 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -44,14 +44,6 @@ struct pci_dev;
*/
#define PCI_DMA_BUS_IS_PHYS (1)
-/* pci_unmap_{page,single} is a nop so... */
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
-#define pci_unmap_addr(PTR, ADDR_NAME) (0)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
-#define pci_unmap_len(PTR, LEN_NAME) (0)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
-
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
index c17079388bb..f6fad83b3a8 100644
--- a/arch/cris/include/asm/unistd.h
+++ b/arch/cris/include/asm/unistd.h
@@ -352,6 +352,7 @@
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_IPC
#define __ARCH_WANT_SYS_PAUSE
#define __ARCH_WANT_SYS_SGETMASK
#define __ARCH_WANT_SYS_SIGNAL
@@ -364,6 +365,7 @@
#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLD_MMAP
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c
index c2bbb1ac98a..7aa036ec78f 100644
--- a/arch/cris/kernel/sys_cris.c
+++ b/arch/cris/kernel/sys_cris.c
@@ -26,24 +26,6 @@
#include <asm/uaccess.h>
#include <asm/segment.h>
-asmlinkage unsigned long old_mmap(unsigned long __user *args)
-{
- unsigned long buffer[6];
- int err = -EFAULT;
-
- if (copy_from_user(&buffer, args, sizeof(buffer)))
- goto out;
-
- err = -EINVAL;
- if (buffer[5] & ~PAGE_MASK) /* verify that offset is on page boundary */
- goto out;
-
- err = sys_mmap_pgoff(buffer[0], buffer[1], buffer[2], buffer[3],
- buffer[4], buffer[5] >> PAGE_SHIFT);
-out:
- return err;
-}
-
asmlinkage long
sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
@@ -51,81 +33,3 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
/* bug(?): 8Kb pages here */
return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly. (same as arch/i386)
- */
-
-asmlinkage int sys_ipc (uint call, int first, int second,
- int third, void __user *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- switch (call) {
- case SEMOP:
- return sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL);
- case SEMTIMEDOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr, second,
- (const struct timespec __user *)fifth);
-
- case SEMGET:
- return sys_semget (first, second, third);
- case SEMCTL: {
- union semun fourth;
- if (!ptr)
- return -EINVAL;
- if (get_user(fourth.__pad, (void * __user *) ptr))
- return -EFAULT;
- return sys_semctl (first, second, third, fourth);
- }
-
- case MSGSND:
- return sys_msgsnd (first, (struct msgbuf __user *) ptr,
- second, third);
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
- if (!ptr)
- return -EINVAL;
-
- if (copy_from_user(&tmp,
- (struct ipc_kludge __user *) ptr,
- sizeof (tmp)))
- return -EFAULT;
- return sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- }
- default:
- return sys_msgrcv (first,
- (struct msgbuf __user *) ptr,
- second, fifth, third);
- }
- case MSGGET:
- return sys_msgget ((key_t) first, second);
- case MSGCTL:
- return sys_msgctl (first, second, (struct msqid_ds __user *) ptr);
-
- case SHMAT: {
- ulong raddr;
- ret = do_shmat (first, (char __user *) ptr, second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong __user *) third);
- }
- case SHMDT:
- return sys_shmdt ((char __user *)ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds __user *) ptr);
- default:
- return -ENOSYS;
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-09 06:24:47 +0000