aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68knommu
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68knommu')
-rw-r--r--arch/m68knommu/kernel/ptrace.c74
-rw-r--r--arch/m68knommu/kernel/sys_m68k.c136
-rw-r--r--arch/m68knommu/kernel/syscalltable.S4
3 files changed, 3 insertions, 211 deletions
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 85ed2f988f98..f6be1248d216 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -116,12 +116,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
int ret;
switch (request) {
- /* when I and D space are separate, these will need to be fixed. */
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA:
- ret = generic_ptrace_peekdata(child, addr, data);
- break;
-
/* read the word at location addr in the USER area. */
case PTRACE_PEEKUSR: {
unsigned long tmp;
@@ -160,12 +154,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
break;
}
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- ret = generic_ptrace_pokedata(child, addr, data);
- break;
-
case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
ret = -EIO;
if ((addr & 3) || addr < 0 ||
@@ -202,66 +190,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
}
break;
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT: { /* restart after signal. */
- long tmp;
-
- 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;
- /* make sure the single step bit is not set. */
- tmp = get_reg(child, PT_SR) & ~(TRACE_BITS << 16);
- put_reg(child, PT_SR, tmp);
- 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: {
- long tmp;
-
- ret = 0;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- /* make sure the single step bit is not set. */
- tmp = get_reg(child, PT_SR) & ~(TRACE_BITS << 16);
- put_reg(child, PT_SR, tmp);
- wake_up_process(child);
- break;
- }
-
- case PTRACE_SINGLESTEP: { /* set the trap flag. */
- long tmp;
-
- ret = -EIO;
- if (!valid_signal(data))
- break;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- tmp = get_reg(child, PT_SR) | (TRACE_BITS << 16);
- put_reg(child, PT_SR, tmp);
-
- child->exit_code = data;
- /* give it a chance to run. */
- wake_up_process(child);
- ret = 0;
- break;
- }
-
- case PTRACE_DETACH: /* detach a process that was attached. */
- ret = ptrace_detach(child, data);
- break;
-
case PTRACE_GETREGS: { /* Get all gp regs from the child. */
int i;
unsigned long tmp;
@@ -325,7 +253,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
break;
default:
- ret = -EIO;
+ ret = ptrace_request(child, request, addr, data);
break;
}
return ret;
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index 923dd4aab875..d65e9c4c930c 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -27,142 +27,6 @@
#include <asm/cacheflush.h>
#include <asm/unistd.h>
-/*
- * Perform the select(nd, in, out, ex, tv) and mmap() system
- * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to
- * handle more than 4 system call parameters, so these system calls
- * used a memory block for parameter passing..
- */
-
-struct mmap_arg_struct {
- unsigned long addr;
- unsigned long len;
- unsigned long prot;
- unsigned long flags;
- unsigned long fd;
- unsigned long offset;
-};
-
-asmlinkage int old_mmap(struct mmap_arg_struct *arg)
-{
- struct mmap_arg_struct a;
- int error = -EFAULT;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- goto out;
-
- error = -EINVAL;
- if (a.offset & ~PAGE_MASK)
- goto out;
-
- error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd,
- a.offset >> PAGE_SHIFT);
-out:
- return error;
-}
-
-struct sel_arg_struct {
- unsigned long n;
- fd_set *inp, *outp, *exp;
- struct timeval *tvp;
-};
-
-asmlinkage int old_select(struct sel_arg_struct *arg)
-{
- struct sel_arg_struct a;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- return -EFAULT;
- /* sys_select() does the appropriate kernel locking */
- return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
-}
-
-/*
- * 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 *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- if (call <= SEMCTL)
- switch (call) {
- case SEMOP:
- return sys_semop (first, (struct sembuf *)ptr, second);
- case SEMGET:
- return sys_semget (first, second, third);
- case SEMCTL: {
- union semun fourth;
- if (!ptr)
- return -EINVAL;
- if (get_user(fourth.__pad, (void **) ptr))
- return -EFAULT;
- return sys_semctl (first, second, third, fourth);
- }
- default:
- return -EINVAL;
- }
- if (call <= MSGCTL)
- switch (call) {
- case MSGSND:
- return sys_msgsnd (first, (struct msgbuf *) 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 *)ptr,
- sizeof (tmp)))
- return -EFAULT;
- return sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- }
- default:
- return sys_msgrcv (first,
- (struct msgbuf *) ptr,
- second, fifth, third);
- }
- case MSGGET:
- return sys_msgget ((key_t) first, second);
- case MSGCTL:
- return sys_msgctl (first, second,
- (struct msqid_ds *) ptr);
- default:
- return -EINVAL;
- }
- if (call <= SHMCTL)
- switch (call) {
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
- ret = do_shmat (first, ptr, second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong __user *) third);
- }
- }
- case SHMDT:
- return sys_shmdt (ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second, ptr);
- default:
- return -ENOSYS;
- }
-
- return -EINVAL;
-}
-
/* sys_cacheflush -- flush (part of) the processor cache. */
asmlinkage int
sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index 56dd01ded148..b30b3eb197a5 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -100,7 +100,7 @@ ENTRY(sys_call_table)
.long sys_settimeofday
.long sys_getgroups16 /* 80 */
.long sys_setgroups16
- .long old_select
+ .long sys_old_select
.long sys_symlink
.long sys_lstat
.long sys_readlink /* 85 */
@@ -108,7 +108,7 @@ ENTRY(sys_call_table)
.long sys_ni_syscall /* 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
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.