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-rw-r--r--arch/m32r/kernel/irq.c4
-rw-r--r--arch/m32r/kernel/process.c2
-rw-r--r--arch/m32r/kernel/ptrace.c97
-rw-r--r--arch/m32r/kernel/sys_m32r.c116
-rw-r--r--arch/m32r/kernel/syscall_table.S2
5 files changed, 33 insertions, 188 deletions
diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c
index 8dfd31e87c4..3c71f776872 100644
--- a/arch/m32r/kernel/irq.c
+++ b/arch/m32r/kernel/irq.c
@@ -40,7 +40,7 @@ int show_interrupts(struct seq_file *p, void *v)
}
if (i < NR_IRQS) {
- spin_lock_irqsave(&irq_desc[i].lock, flags);
+ raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
action = irq_desc[i].action;
if (!action)
goto skip;
@@ -59,7 +59,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
skip:
- spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+ raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
}
return 0;
}
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 67a01e1e428..bc8c8c1511b 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -21,10 +21,10 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/ptrace.h>
#include <linux/unistd.h>
-#include <linux/slab.h>
#include <linux/hardirq.h>
#include <asm/io.h>
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 98682bba0ed..e555091eb97 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -580,6 +580,35 @@ init_debug_traps(struct task_struct *child)
}
}
+void user_enable_single_step(struct task_struct *child)
+{
+ unsigned long next_pc;
+ unsigned long pc, insn;
+
+ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+
+ /* Compute next pc. */
+ pc = get_stack_long(child, PT_BPC);
+
+ if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
+ != sizeof(insn))
+ break;
+
+ compute_next_pc(insn, pc, &next_pc, child);
+ if (next_pc & 0x80000000)
+ break;
+
+ if (embed_debug_trap(child, next_pc))
+ break;
+
+ invalidate_cache();
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+ unregister_all_debug_traps(child);
+ invalidate_cache();
+}
/*
* Called by kernel/ptrace.c when detaching..
@@ -630,74 +659,6 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = ptrace_write_user(child, addr, data);
break;
- /*
- * continue/restart and stop at next (return from) syscall
- */
- 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;
- wake_up_process(child);
- ret = 0;
- break;
-
- /*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL: {
- ret = 0;
- unregister_all_debug_traps(child);
- invalidate_cache();
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- wake_up_process(child);
- break;
- }
-
- /*
- * execute single instruction.
- */
- case PTRACE_SINGLESTEP: {
- unsigned long next_pc;
- unsigned long pc, insn;
-
- ret = -EIO;
- if (!valid_signal(data))
- break;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
- /* Compute next pc. */
- pc = get_stack_long(child, PT_BPC);
-
- if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
- != sizeof(insn))
- break;
-
- compute_next_pc(insn, pc, &next_pc, child);
- if (next_pc & 0x80000000)
- break;
-
- if (embed_debug_trap(child, next_pc))
- break;
-
- invalidate_cache();
- child->exit_code = data;
-
- /* give it a chance to run. */
- wake_up_process(child);
- ret = 0;
- break;
- }
-
case PTRACE_GETREGS:
ret = ptrace_getregs(child, (void __user *)data);
break;
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index 305ac852bbe..0a00f467edf 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -76,122 +76,6 @@ asmlinkage int sys_tas(int __user *addr)
return oldval;
}
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- int error = -EBADF;
- struct file *file = NULL;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-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 * __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;
-
- if (!access_ok(VERIFY_WRITE, (ulong __user *) third,
- sizeof(ulong)))
- return -EFAULT;
- 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;
- }
-}
-
-asmlinkage int sys_uname(struct old_utsname __user * name)
-{
- int err;
- if (!name)
- return -EFAULT;
- down_read(&uts_sem);
- err = copy_to_user(name, utsname(), sizeof (*name));
- up_read(&uts_sem);
- return err?-EFAULT:0;
-}
-
asmlinkage int sys_cacheflush(void *addr, int bytes, int cache)
{
/* This should flush more selectively ... */
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index aa3bf4cfab3..60536e27123 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -191,7 +191,7 @@ ENTRY(sys_call_table)
.long sys_ni_syscall /* streams2 */
.long sys_vfork /* 190 */
.long sys_getrlimit
- .long sys_mmap2
+ .long sys_mmap_pgoff
.long sys_truncate64
.long sys_ftruncate64
.long sys_stat64 /* 195 */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-01 09:16:50 +0000