aboutsummaryrefslogtreecommitdiffstats
path: root/arch/h8300
diff options
context:
space:
mode:
Diffstat (limited to 'arch/h8300')
-rw-r--r--arch/h8300/include/asm/atomic.h2
-rw-r--r--arch/h8300/include/asm/io.h2
-rw-r--r--arch/h8300/include/asm/ptrace.h2
-rw-r--r--arch/h8300/include/asm/scatterlist.h12
-rw-r--r--arch/h8300/include/asm/thread_info.h2
-rw-r--r--arch/h8300/include/asm/unistd.h3
-rw-r--r--arch/h8300/kernel/process.c2
-rw-r--r--arch/h8300/kernel/ptrace.c82
-rw-r--r--arch/h8300/kernel/sys_h8300.c138
-rw-r--r--arch/h8300/kernel/syscalls.S4
-rw-r--r--arch/h8300/kernel/time.c10
-rw-r--r--arch/h8300/mm/init.c2
-rw-r--r--arch/h8300/mm/kmap.c1
-rw-r--r--arch/h8300/mm/memory.c5
-rw-r--r--arch/h8300/platform/h8300h/ptrace_h8300h.c6
-rw-r--r--arch/h8300/platform/h8s/ptrace_h8s.c4
16 files changed, 34 insertions, 243 deletions
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
index 33c8c0fa9583..e936804b7508 100644
--- a/arch/h8300/include/asm/atomic.h
+++ b/arch/h8300/include/asm/atomic.h
@@ -10,7 +10,7 @@
#define ATOMIC_INIT(i) { (i) }
-#define atomic_read(v) ((v)->counter)
+#define atomic_read(v) (*(volatile int *)&(v)->counter)
#define atomic_set(v, i) (((v)->counter) = i)
#include <asm/system.h>
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
index 33e842f3284b..c1a8df22080f 100644
--- a/arch/h8300/include/asm/io.h
+++ b/arch/h8300/include/asm/io.h
@@ -25,7 +25,7 @@
* memory location directly.
*/
/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates
- * two accesses to memory, which may be undesireable for some devices.
+ * two accesses to memory, which may be undesirable for some devices.
*/
/*
diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h
index c2e05e4b512e..d866c0efba87 100644
--- a/arch/h8300/include/asm/ptrace.h
+++ b/arch/h8300/include/asm/ptrace.h
@@ -55,6 +55,8 @@ struct pt_regs {
/* Find the stack offset for a register, relative to thread.esp0. */
#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg)
+#define arch_has_single_step() (1)
+
#define user_mode(regs) (!((regs)->ccr & PS_S))
#define instruction_pointer(regs) ((regs)->pc)
#define profile_pc(regs) instruction_pointer(regs)
diff --git a/arch/h8300/include/asm/scatterlist.h b/arch/h8300/include/asm/scatterlist.h
index d3ecdd87ac90..de08a4a2cc1c 100644
--- a/arch/h8300/include/asm/scatterlist.h
+++ b/arch/h8300/include/asm/scatterlist.h
@@ -1,17 +1,7 @@
#ifndef _H8300_SCATTERLIST_H
#define _H8300_SCATTERLIST_H
-#include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
- unsigned long sg_magic;
-#endif
- unsigned long page_link;
- unsigned int offset;
- dma_addr_t dma_address;
- unsigned int length;
-};
+#include <asm-generic/scatterlist.h>
#define ISA_DMA_THRESHOLD (0xffffffff)
diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h
index 70e67e47d020..d6f1784bfdee 100644
--- a/arch/h8300/include/asm/thread_info.h
+++ b/arch/h8300/include/asm/thread_info.h
@@ -87,7 +87,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
-#define TIF_MEMDIE 4
+#define TIF_MEMDIE 4 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
#define TIF_NOTIFY_RESUME 6 /* callback before returning to user */
#define TIF_FREEZE 16 /* is freezing for suspend */
diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h
index 99f3c3561ecb..50f2c5a36591 100644
--- a/arch/h8300/include/asm/unistd.h
+++ b/arch/h8300/include/asm/unistd.h
@@ -336,6 +336,7 @@
#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
@@ -348,6 +349,8 @@
#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_OLD_SELECT
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index bd883faa983d..8c8b0ffa6ad7 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -32,11 +32,11 @@
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
-#include <linux/slab.h>
#include <linux/user.h>
#include <linux/interrupt.h>
#include <linux/reboot.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/system.h>
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
index d32bbf02fc48..df114122ebdf 100644
--- a/arch/h8300/kernel/ptrace.c
+++ b/arch/h8300/kernel/ptrace.c
@@ -34,25 +34,20 @@
/* cpu depend functions */
extern long h8300_get_reg(struct task_struct *task, int regno);
extern int h8300_put_reg(struct task_struct *task, int regno, unsigned long data);
-extern void h8300_disable_trace(struct task_struct *child);
-extern void h8300_enable_trace(struct task_struct *child);
+
+
+void user_disable_single_step(struct task_struct *child)
+{
+}
/*
* does not yet catch signals sent when the child dies.
* in exit.c or in signal.c.
*/
-inline
-static int read_long(struct task_struct * tsk, unsigned long addr,
- unsigned long * result)
-{
- *result = *(unsigned long *)addr;
- return 0;
-}
-
void ptrace_disable(struct task_struct *child)
{
- h8300_disable_trace(child);
+ user_disable_single_step(child);
}
long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -60,17 +55,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
int ret;
switch (request) {
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA: {
- unsigned long tmp;
-
- ret = read_long(child, addr, &tmp);
- if (ret < 0)
- break ;
- ret = put_user(tmp, (unsigned long *) data);
- break ;
- }
-
/* read the word at location addr in the USER area. */
case PTRACE_PEEKUSR: {
unsigned long tmp = 0;
@@ -109,11 +93,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
}
/* 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 */
if ((addr & 3) || addr < 0 || addr >= sizeof(struct user)) {
ret = -EIO;
@@ -131,53 +110,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
}
ret = -EIO;
break ;
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT: { /* restart after signal. */
- 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);
- /* make sure the single step bit is not set. */
- h8300_disable_trace(child);
- ret = 0;
- }
-
-/*
- * 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;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- h8300_disable_trace(child);
- wake_up_process(child);
- break;
- }
-
- case PTRACE_SINGLESTEP: { /* set the trap flag. */
- ret = -EIO;
- if (!valid_signal(data))
- break;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->exit_code = data;
- h8300_enable_trace(child);
- 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;
@@ -210,7 +142,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
}
default:
- ret = -EIO;
+ ret = ptrace_request(child, request, addr, data);
break;
}
return ret;
diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c
index b5969db0ca10..f9b3f44da69f 100644
--- a/arch/h8300/kernel/sys_h8300.c
+++ b/arch/h8300/kernel/sys_h8300.c
@@ -26,144 +26,6 @@
#include <asm/traps.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, (char *) ptr,
- second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong *) third);
- }
- }
- case SHMDT:
- return sys_shmdt ((char *)ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds *) ptr);
- default:
- return -EINVAL;
- }
-
- return -EINVAL;
-}
-
/* sys_cacheflush -- no support. */
asmlinkage int
sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
diff --git a/arch/h8300/kernel/syscalls.S b/arch/h8300/kernel/syscalls.S
index 2d69881eda6a..faefaff7d43d 100644
--- a/arch/h8300/kernel/syscalls.S
+++ b/arch/h8300/kernel/syscalls.S
@@ -96,7 +96,7 @@ SYMBOL_NAME_LABEL(sys_call_table)
.long SYMBOL_NAME(sys_settimeofday)
.long SYMBOL_NAME(sys_getgroups16) /* 80 */
.long SYMBOL_NAME(sys_setgroups16)
- .long SYMBOL_NAME(old_select)
+ .long SYMBOL_NAME(sys_old_select)
.long SYMBOL_NAME(sys_symlink)
.long SYMBOL_NAME(sys_lstat)
.long SYMBOL_NAME(sys_readlink) /* 85 */
@@ -104,7 +104,7 @@ SYMBOL_NAME_LABEL(sys_call_table)
.long SYMBOL_NAME(sys_swapon)
.long SYMBOL_NAME(sys_reboot)
.long SYMBOL_NAME(sys_old_readdir)
- .long SYMBOL_NAME(old_mmap) /* 90 */
+ .long SYMBOL_NAME(sys_old_mmap) /* 90 */
.long SYMBOL_NAME(sys_munmap)
.long SYMBOL_NAME(sys_truncate)
.long SYMBOL_NAME(sys_ftruncate)
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index 7f2d6cfbb4b6..165005aff9df 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -41,7 +41,7 @@ void h8300_timer_tick(void)
update_process_times(user_mode(get_irq_regs()));
}
-void __init time_init(void)
+void read_persistent_clock(struct timespec *ts)
{
unsigned int year, mon, day, hour, min, sec;
@@ -56,8 +56,12 @@ void __init time_init(void)
#endif
if ((year += 1900) < 1970)
year += 100;
- xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
- xtime.tv_nsec = 0;
+ ts->tv_sec = mktime(year, mon, day, hour, min, sec);
+ ts->tv_nsec = 0;
+}
+
+void __init time_init(void)
+{
h8300_timer_setup();
}
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 9942f24aff9e..7cc3380f250c 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -30,7 +30,7 @@
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/bootmem.h>
-#include <linux/slab.h>
+#include <linux/gfp.h>
#include <asm/setup.h>
#include <asm/segment.h>
diff --git a/arch/h8300/mm/kmap.c b/arch/h8300/mm/kmap.c
index 5c7af09ae8d1..944a502c2e56 100644
--- a/arch/h8300/mm/kmap.c
+++ b/arch/h8300/mm/kmap.c
@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <asm/setup.h>
diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c
index ccd6ade816dd..5552ddfaab5e 100644
--- a/arch/h8300/mm/memory.c
+++ b/arch/h8300/mm/memory.c
@@ -21,7 +21,6 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <asm/setup.h>
#include <asm/segment.h>
@@ -44,8 +43,8 @@ void cache_push_v (unsigned long vaddr, int len)
{
}
-/* Map some physical address range into the kernel address space. The
- * code is copied and adapted from map_chunk().
+/*
+ * Map some physical address range into the kernel address space.
*/
unsigned long kernel_map(unsigned long paddr, unsigned long size,
diff --git a/arch/h8300/platform/h8300h/ptrace_h8300h.c b/arch/h8300/platform/h8300h/ptrace_h8300h.c
index 746b1ae672a1..4f1ed0279633 100644
--- a/arch/h8300/platform/h8300h/ptrace_h8300h.c
+++ b/arch/h8300/platform/h8300h/ptrace_h8300h.c
@@ -60,7 +60,7 @@ int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
}
/* disable singlestep */
-void h8300_disable_trace(struct task_struct *child)
+void user_disable_single_step(struct task_struct *child)
{
if((long)child->thread.breakinfo.addr != -1L) {
*child->thread.breakinfo.addr = child->thread.breakinfo.inst;
@@ -264,7 +264,7 @@ static unsigned short *getnextpc(struct task_struct *child, unsigned short *pc)
/* Set breakpoint(s) to simulate a single step from the current PC. */
-void h8300_enable_trace(struct task_struct *child)
+void user_enable_single_step(struct task_struct *child)
{
unsigned short *nextpc;
nextpc = getnextpc(child,(unsigned short *)h8300_get_reg(child, PT_PC));
@@ -276,7 +276,7 @@ void h8300_enable_trace(struct task_struct *child)
asmlinkage void trace_trap(unsigned long bp)
{
if ((unsigned long)current->thread.breakinfo.addr == bp) {
- h8300_disable_trace(current);
+ user_disable_single_step(current);
force_sig(SIGTRAP,current);
} else
force_sig(SIGILL,current);
diff --git a/arch/h8300/platform/h8s/ptrace_h8s.c b/arch/h8300/platform/h8s/ptrace_h8s.c
index e8cd46f9255c..c058ab1a8495 100644
--- a/arch/h8300/platform/h8s/ptrace_h8s.c
+++ b/arch/h8300/platform/h8s/ptrace_h8s.c
@@ -65,13 +65,13 @@ int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
}
/* disable singlestep */
-void h8300_disable_trace(struct task_struct *child)
+void user_disable_single_step(struct task_struct *child)
{
*(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) &= ~EXR_TRACE;
}
/* enable singlestep */
-void h8300_enable_trace(struct task_struct *child)
+void user_enable_single_step(struct task_struct *child)
{
*(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) |= EXR_TRACE;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.