Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 764 insertions, 0 deletions

diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c
new file mode 100644
index 000000000000..2a0efb739adc
--- /dev/null
+++ b/arch/frv/kernel/ptrace.c
@@ -0,0 +1,764 @@
+/* ptrace.c: FRV specific parts of process tracing
+ *
+ * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ * - Derived from arch/m68k/kernel/ptrace.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/config.h>
+#include <linux/security.h>
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/unistd.h>
+
+/*
+ * does not yet catch signals sent when the child dies.
+ * in exit.c or in signal.c.
+ */
+
+/*
+ * Get contents of register REGNO in task TASK.
+ */
+static inline long get_reg(struct task_struct *task, int regno)
+{
+	struct user_context *user = task->thread.user;
+
+	if (regno < 0 || regno >= PT__END)
+		return 0;
+
+	return ((unsigned long *) user)[regno];
+}
+
+/*
+ * Write contents of register REGNO in task TASK.
+ */
+static inline int put_reg(struct task_struct *task, int regno,
+			  unsigned long data)
+{
+	struct user_context *user = task->thread.user;
+
+	if (regno < 0 || regno >= PT__END)
+		return -EIO;
+
+	switch (regno) {
+	case PT_GR(0):
+		return 0;
+	case PT_PSR:
+	case PT__STATUS:
+		return -EIO;
+	default:
+		((unsigned long *) user)[regno] = data;
+		return 0;
+	}
+}
+
+/*
+ * check that an address falls within the bounds of the target process's memory mappings
+ */
+static inline int is_user_addr_valid(struct task_struct *child,
+				     unsigned long start, unsigned long len)
+{
+#ifdef CONFIG_MMU
+	if (start >= PAGE_OFFSET || len > PAGE_OFFSET - start)
+		return -EIO;
+	return 0;
+#else
+	struct vm_list_struct *vml;
+
+	for (vml = child->mm->context.vmlist; vml; vml = vml->next)
+		if (start >= vml->vma->vm_start && start + len <= vml->vma->vm_end)
+			return 0;
+
+	return -EIO;
+#endif
+}
+
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Control h/w single stepping
+ */
+void ptrace_disable(struct task_struct *child)
+{
+	child->thread.frame0->__status &= ~REG__STATUS_STEP;
+}
+
+void ptrace_enable(struct task_struct *child)
+{
+	child->thread.frame0->__status |= REG__STATUS_STEP;
+}
+
+asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+{
+	struct task_struct *child;
+	unsigned long tmp;
+	int ret;
+
+	lock_kernel();
+	ret = -EPERM;
+	if (request == PTRACE_TRACEME) {
+		/* are we already being traced? */
+		if (current->ptrace & PT_PTRACED)
+			goto out;
+		ret = security_ptrace(current->parent, current);
+		if (ret)
+			goto out;
+		/* set the ptrace bit in the process flags. */
+		current->ptrace |= PT_PTRACED;
+		ret = 0;
+		goto out;
+	}
+	ret = -ESRCH;
+	read_lock(&tasklist_lock);
+	child = find_task_by_pid(pid);
+	if (child)
+		get_task_struct(child);
+	read_unlock(&tasklist_lock);
+	if (!child)
+		goto out;
+
+	ret = -EPERM;
+	if (pid == 1)		/* you may not mess with init */
+		goto out_tsk;
+
+	if (request == PTRACE_ATTACH) {
+		ret = ptrace_attach(child);
+		goto out_tsk;
+	}
+
+	ret = ptrace_check_attach(child, request == PTRACE_KILL);
+	if (ret < 0)
+		goto out_tsk;
+
+	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: {
+		int copied;
+
+		ret = -EIO;
+		if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
+			break;
+
+		copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+		if (copied != sizeof(tmp))
+			break;
+
+		ret = put_user(tmp,(unsigned long *) data);
+		break;
+	}
+
+		/* read the word at location addr in the USER area. */
+	case PTRACE_PEEKUSR: {
+		tmp = 0;
+		ret = -EIO;
+		if ((addr & 3) || addr < 0)
+			break;
+
+		ret = 0;
+		switch (addr >> 2) {
+		case 0 ... PT__END - 1:
+			tmp = get_reg(child, addr >> 2);
+			break;
+
+		case PT__END + 0:
+			tmp = child->mm->end_code - child->mm->start_code;
+			break;
+
+		case PT__END + 1:
+			tmp = child->mm->end_data - child->mm->start_data;
+			break;
+
+		case PT__END + 2:
+			tmp = child->mm->start_stack - child->mm->start_brk;
+			break;
+
+		case PT__END + 3:
+			tmp = child->mm->start_code;
+			break;
+
+		case PT__END + 4:
+			tmp = child->mm->start_stack;
+			break;
+
+		default:
+			ret = -EIO;
+			break;
+		}
+
+		if (ret == 0)
+			ret = put_user(tmp, (unsigned 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 = -EIO;
+		if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0)
+			break;
+		if (access_process_vm(child, addr, &data, sizeof(data), 1) != sizeof(data))
+			break;
+		ret = 0;
+		break;
+
+	case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
+		ret = -EIO;
+		if ((addr & 3) || addr < 0)
+			break;
+
+		ret = 0;
+		switch (addr >> 2) {
+		case 0 ... PT__END-1:
+			ret = put_reg(child, addr >> 2, data);
+			break;
+
+		default:
+			ret = -EIO;
+			break;
+		}
+		break;
+
+	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
+	case PTRACE_CONT: /* restart after signal. */
+		ret = -EIO;
+		if ((unsigned long) data > _NSIG)
+			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;
+		ptrace_disable(child);
+		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;
+		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
+			break;
+		child->exit_code = SIGKILL;
+		clear_tsk_thread_flag(child, TIF_SINGLESTEP);
+		ptrace_disable(child);
+		wake_up_process(child);
+		break;
+
+	case PTRACE_SINGLESTEP:  /* set the trap flag. */
+		ret = -EIO;
+		if ((unsigned long) data > _NSIG)
+			break;
+		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+		ptrace_enable(child);
+		child->exit_code = data;
+		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 integer regs from the child. */
+		int i;
+		for (i = 0; i < PT__GPEND; i++) {
+			tmp = get_reg(child, i);
+			if (put_user(tmp, (unsigned long *) data)) {
+				ret = -EFAULT;
+				break;
+			}
+			data += sizeof(long);
+		}
+		ret = 0;
+		break;
+	}
+
+	case PTRACE_SETREGS: { /* Set all integer regs in the child. */
+		int i;
+		for (i = 0; i < PT__GPEND; i++) {
+			if (get_user(tmp, (unsigned long *) data)) {
+				ret = -EFAULT;
+				break;
+			}
+			put_reg(child, i, tmp);
+			data += sizeof(long);
+		}
+		ret = 0;
+		break;
+	}
+
+	case PTRACE_GETFPREGS: { /* Get the child FP/Media state. */
+		ret = 0;
+		if (copy_to_user((void *) data,
+				 &child->thread.user->f,
+				 sizeof(child->thread.user->f)))
+			ret = -EFAULT;
+		break;
+	}
+
+	case PTRACE_SETFPREGS: { /* Set the child FP/Media state. */
+		ret = 0;
+		if (copy_from_user(&child->thread.user->f,
+				   (void *) data,
+				   sizeof(child->thread.user->f)))
+			ret = -EFAULT;
+		break;
+	}
+
+	case PTRACE_GETFDPIC:
+		tmp = 0;
+		switch (addr) {
+		case PTRACE_GETFDPIC_EXEC:
+			tmp = child->mm->context.exec_fdpic_loadmap;
+			break;
+		case PTRACE_GETFDPIC_INTERP:
+			tmp = child->mm->context.interp_fdpic_loadmap;
+			break;
+		default:
+			break;
+		}
+
+		ret = 0;
+		if (put_user(tmp, (unsigned long *) data)) {
+			ret = -EFAULT;
+			break;
+		}
+		break;
+
+	default:
+		ret = -EIO;
+		break;
+	}
+out_tsk:
+	put_task_struct(child);
+out:
+	unlock_kernel();
+	return ret;
+}
+
+int __nongprelbss kstrace;
+
+static const struct {
+	const char	*name;
+	unsigned	argmask;
+} __syscall_name_table[NR_syscalls] = {
+	[0]	= { "restart_syscall"			},
+	[1]	= { "exit",		0x000001	},
+	[2]	= { "fork",		0xffffff	},
+	[3]	= { "read",		0x000141	},
+	[4]	= { "write",		0x000141	},
+	[5]	= { "open",		0x000235	},
+	[6]	= { "close",		0x000001	},
+	[7]	= { "waitpid",		0x000141	},
+	[8]	= { "creat",		0x000025	},
+	[9]	= { "link",		0x000055	},
+	[10]	= { "unlink",		0x000005	},
+	[11]	= { "execve",		0x000445	},
+	[12]	= { "chdir",		0x000005	},
+	[13]	= { "time",		0x000004	},
+	[14]	= { "mknod",		0x000325	},
+	[15]	= { "chmod",		0x000025	},
+	[16]	= { "lchown",		0x000025	},
+	[17]	= { "break" },
+	[18]	= { "oldstat",		0x000045	},
+	[19]	= { "lseek",		0x000131	},
+	[20]	= { "getpid",		0xffffff	},
+	[21]	= { "mount",		0x043555	},
+	[22]	= { "umount",		0x000005	},
+	[23]	= { "setuid",		0x000001	},
+	[24]	= { "getuid",		0xffffff	},
+	[25]	= { "stime",		0x000004	},
+	[26]	= { "ptrace",		0x004413	},
+	[27]	= { "alarm",		0x000001	},
+	[28]	= { "oldfstat",		0x000041	},
+	[29]	= { "pause",		0xffffff	},
+	[30]	= { "utime",		0x000045	},
+	[31]	= { "stty" },
+	[32]	= { "gtty" },
+	[33]	= { "access",		0x000025	},
+	[34]	= { "nice",		0x000001	},
+	[35]	= { "ftime" },
+	[36]	= { "sync",		0xffffff	},
+	[37]	= { "kill",		0x000011	},
+	[38]	= { "rename",		0x000055	},
+	[39]	= { "mkdir",		0x000025	},
+	[40]	= { "rmdir",		0x000005	},
+	[41]	= { "dup",		0x000001	},
+	[42]	= { "pipe",		0x000004	},
+	[43]	= { "times",		0x000004	},
+	[44]	= { "prof" },
+	[45]	= { "brk",		0x000004	},
+	[46]	= { "setgid",		0x000001	},
+	[47]	= { "getgid",		0xffffff	},
+	[48]	= { "signal",		0x000041	},
+	[49]	= { "geteuid",		0xffffff	},
+	[50]	= { "getegid",		0xffffff	},
+	[51]	= { "acct",		0x000005	},
+	[52]	= { "umount2",		0x000035	},
+	[53]	= { "lock" },
+	[54]	= { "ioctl",		0x000331	},
+	[55]	= { "fcntl",		0x000331	},
+	[56]	= { "mpx" },
+	[57]	= { "setpgid",		0x000011	},
+	[58]	= { "ulimit" },
+	[60]	= { "umask",		0x000002	},
+	[61]	= { "chroot",		0x000005	},
+	[62]	= { "ustat",		0x000043	},
+	[63]	= { "dup2",		0x000011	},
+	[64]	= { "getppid",		0xffffff	},
+	[65]	= { "getpgrp",		0xffffff	},
+	[66]	= { "setsid",		0xffffff	},
+	[67]	= { "sigaction" },
+	[68]	= { "sgetmask" },
+	[69]	= { "ssetmask" },
+	[70]	= { "setreuid" },
+	[71]	= { "setregid" },
+	[72]	= { "sigsuspend" },
+	[73]	= { "sigpending" },
+	[74]	= { "sethostname" },
+	[75]	= { "setrlimit" },
+	[76]	= { "getrlimit" },
+	[77]	= { "getrusage" },
+	[78]	= { "gettimeofday" },
+	[79]	= { "settimeofday" },
+	[80]	= { "getgroups" },
+	[81]	= { "setgroups" },
+	[82]	= { "select" },
+	[83]	= { "symlink" },
+	[84]	= { "oldlstat" },
+	[85]	= { "readlink" },
+	[86]	= { "uselib" },
+	[87]	= { "swapon" },
+	[88]	= { "reboot" },
+	[89]	= { "readdir" },
+	[91]	= { "munmap",		0x000034	},
+	[92]	= { "truncate" },
+	[93]	= { "ftruncate" },
+	[94]	= { "fchmod" },
+	[95]	= { "fchown" },
+	[96]	= { "getpriority" },
+	[97]	= { "setpriority" },
+	[99]	= { "statfs" },
+	[100]	= { "fstatfs" },
+	[102]	= { "socketcall" },
+	[103]	= { "syslog" },
+	[104]	= { "setitimer" },
+	[105]	= { "getitimer" },
+	[106]	= { "stat" },
+	[107]	= { "lstat" },
+	[108]	= { "fstat" },
+	[111]	= { "vhangup" },
+	[114]	= { "wait4" },
+	[115]	= { "swapoff" },
+	[116]	= { "sysinfo" },
+	[117]	= { "ipc" },
+	[118]	= { "fsync" },
+	[119]	= { "sigreturn" },
+	[120]	= { "clone" },
+	[121]	= { "setdomainname" },
+	[122]	= { "uname" },
+	[123]	= { "modify_ldt" },
+	[123]	= { "cacheflush" },
+	[124]	= { "adjtimex" },
+	[125]	= { "mprotect" },
+	[126]	= { "sigprocmask" },
+	[127]	= { "create_module" },
+	[128]	= { "init_module" },
+	[129]	= { "delete_module" },
+	[130]	= { "get_kernel_syms" },
+	[131]	= { "quotactl" },
+	[132]	= { "getpgid" },
+	[133]	= { "fchdir" },
+	[134]	= { "bdflush" },
+	[135]	= { "sysfs" },
+	[136]	= { "personality" },
+	[137]	= { "afs_syscall" },
+	[138]	= { "setfsuid" },
+	[139]	= { "setfsgid" },
+	[140]	= { "_llseek",			0x014331	},
+	[141]	= { "getdents" },
+	[142]	= { "_newselect",		0x000141	},
+	[143]	= { "flock" },
+	[144]	= { "msync" },
+	[145]	= { "readv" },
+	[146]	= { "writev" },
+	[147]	= { "getsid",			0x000001	},
+	[148]	= { "fdatasync",		0x000001	},
+	[149]	= { "_sysctl",			0x000004	},
+	[150]	= { "mlock" },
+	[151]	= { "munlock" },
+	[152]	= { "mlockall" },
+	[153]	= { "munlockall" },
+	[154]	= { "sched_setparam" },
+	[155]	= { "sched_getparam" },
+	[156]	= { "sched_setscheduler" },
+	[157]	= { "sched_getscheduler" },
+	[158]	= { "sched_yield" },
+	[159]	= { "sched_get_priority_max" },
+	[160]	= { "sched_get_priority_min" },
+	[161]	= { "sched_rr_get_interval" },
+	[162]	= { "nanosleep",		0x000044	},
+	[163]	= { "mremap" },
+	[164]	= { "setresuid" },
+	[165]	= { "getresuid" },
+	[166]	= { "vm86" },
+	[167]	= { "query_module" },
+	[168]	= { "poll" },
+	[169]	= { "nfsservctl" },
+	[170]	= { "setresgid" },
+	[171]	= { "getresgid" },
+	[172]	= { "prctl",			0x333331	},
+	[173]	= { "rt_sigreturn",		0xffffff	},
+	[174]	= { "rt_sigaction",		0x001441	},
+	[175]	= { "rt_sigprocmask",		0x001441	},
+	[176]	= { "rt_sigpending",		0x000014	},
+	[177]	= { "rt_sigtimedwait",		0x001444	},
+	[178]	= { "rt_sigqueueinfo",		0x000411	},
+	[179]	= { "rt_sigsuspend",		0x000014	},
+	[180]	= { "pread",			0x003341	},
+	[181]	= { "pwrite",			0x003341	},
+	[182]	= { "chown",			0x000115	},
+	[183]	= { "getcwd" },
+	[184]	= { "capget" },
+	[185]	= { "capset" },
+	[186]	= { "sigaltstack" },
+	[187]	= { "sendfile" },
+	[188]	= { "getpmsg" },
+	[189]	= { "putpmsg" },
+	[190]	= { "vfork",			0xffffff	},
+	[191]	= { "ugetrlimit" },
+	[192]	= { "mmap2",			0x313314	},
+	[193]	= { "truncate64" },
+	[194]	= { "ftruncate64" },
+	[195]	= { "stat64",			0x000045	},
+	[196]	= { "lstat64",			0x000045	},
+	[197]	= { "fstat64",			0x000041	},
+	[198]	= { "lchown32" },
+	[199]	= { "getuid32",			0xffffff	},
+	[200]	= { "getgid32",			0xffffff	},
+	[201]	= { "geteuid32",		0xffffff	},
+	[202]	= { "getegid32",		0xffffff	},
+	[203]	= { "setreuid32" },
+	[204]	= { "setregid32" },
+	[205]	= { "getgroups32" },
+	[206]	= { "setgroups32" },
+	[207]	= { "fchown32" },
+	[208]	= { "setresuid32" },
+	[209]	= { "getresuid32" },
+	[210]	= { "setresgid32" },
+	[211]	= { "getresgid32" },
+	[212]	= { "chown32" },
+	[213]	= { "setuid32" },
+	[214]	= { "setgid32" },
+	[215]	= { "setfsuid32" },
+	[216]	= { "setfsgid32" },
+	[217]	= { "pivot_root" },
+	[218]	= { "mincore" },
+	[219]	= { "madvise" },
+	[220]	= { "getdents64" },
+	[221]	= { "fcntl64" },
+	[223]	= { "security" },
+	[224]	= { "gettid" },
+	[225]	= { "readahead" },
+	[226]	= { "setxattr" },
+	[227]	= { "lsetxattr" },
+	[228]	= { "fsetxattr" },
+	[229]	= { "getxattr" },
+	[230]	= { "lgetxattr" },
+	[231]	= { "fgetxattr" },
+	[232]	= { "listxattr" },
+	[233]	= { "llistxattr" },
+	[234]	= { "flistxattr" },
+	[235]	= { "removexattr" },
+	[236]	= { "lremovexattr" },
+	[237]	= { "fremovexattr" },
+	[238]	= { "tkill" },
+	[239]	= { "sendfile64" },
+	[240]	= { "futex" },
+	[241]	= { "sched_setaffinity" },
+	[242]	= { "sched_getaffinity" },
+	[243]	= { "set_thread_area" },
+	[244]	= { "get_thread_area" },
+	[245]	= { "io_setup" },
+	[246]	= { "io_destroy" },
+	[247]	= { "io_getevents" },
+	[248]	= { "io_submit" },
+	[249]	= { "io_cancel" },
+	[250]	= { "fadvise64" },
+	[252]	= { "exit_group",		0x000001	},
+	[253]	= { "lookup_dcookie" },
+	[254]	= { "epoll_create" },
+	[255]	= { "epoll_ctl" },
+	[256]	= { "epoll_wait" },
+	[257]	= { "remap_file_pages" },
+	[258]	= { "set_tid_address" },
+	[259]	= { "timer_create" },
+	[260]	= { "timer_settime" },
+	[261]	= { "timer_gettime" },
+	[262]	= { "timer_getoverrun" },
+	[263]	= { "timer_delete" },
+	[264]	= { "clock_settime" },
+	[265]	= { "clock_gettime" },
+	[266]	= { "clock_getres" },
+	[267]	= { "clock_nanosleep" },
+	[268]	= { "statfs64" },
+	[269]	= { "fstatfs64" },
+	[270]	= { "tgkill" },
+	[271]	= { "utimes" },
+	[272]	= { "fadvise64_64" },
+	[273]	= { "vserver" },
+	[274]	= { "mbind" },
+	[275]	= { "get_mempolicy" },
+	[276]	= { "set_mempolicy" },
+	[277]	= { "mq_open" },
+	[278]	= { "mq_unlink" },
+	[279]	= { "mq_timedsend" },
+	[280]	= { "mq_timedreceive" },
+	[281]	= { "mq_notify" },
+	[282]	= { "mq_getsetattr" },
+	[283]	= { "sys_kexec_load" },
+};
+
+asmlinkage void do_syscall_trace(int leaving)
+{
+#if 0
+	unsigned long *argp;
+	const char *name;
+	unsigned argmask;
+	char buffer[16];
+
+	if (!kstrace)
+		return;
+
+	if (!current->mm)
+		return;
+
+	if (__frame->gr7 == __NR_close)
+		return;
+
+#if 0
+	if (__frame->gr7 != __NR_mmap2 &&
+	    __frame->gr7 != __NR_vfork &&
+	    __frame->gr7 != __NR_execve &&
+	    __frame->gr7 != __NR_exit)
+		return;
+#endif
+
+	argmask = 0;
+	name = NULL;
+	if (__frame->gr7 < NR_syscalls) {
+		name = __syscall_name_table[__frame->gr7].name;
+		argmask = __syscall_name_table[__frame->gr7].argmask;
+	}
+	if (!name) {
+		sprintf(buffer, "sys_%lx", __frame->gr7);
+		name = buffer;
+	}
+
+	if (!leaving) {
+		if (!argmask) {
+			printk(KERN_CRIT "[%d] %s(%lx,%lx,%lx,%lx,%lx,%lx)\n",
+			       current->pid,
+			       name,
+			       __frame->gr8,
+			       __frame->gr9,
+			       __frame->gr10,
+			       __frame->gr11,
+			       __frame->gr12,
+			       __frame->gr13);
+		}
+		else if (argmask == 0xffffff) {
+			printk(KERN_CRIT "[%d] %s()\n",
+			       current->pid,
+			       name);
+		}
+		else {
+			printk(KERN_CRIT "[%d] %s(",
+			       current->pid,
+			       name);
+
+			argp = &__frame->gr8;
+
+			do {
+				switch (argmask & 0xf) {
+				case 1:
+					printk("%ld", (long) *argp);
+					break;
+				case 2:
+					printk("%lo", *argp);
+					break;
+				case 3:
+					printk("%lx", *argp);
+					break;
+				case 4:
+					printk("%p", (void *) *argp);
+					break;
+				case 5:
+					printk("\"%s\"", (char *) *argp);
+					break;
+				}
+
+				argp++;
+				argmask >>= 4;
+				if (argmask)
+					printk(",");
+
+			} while (argmask);
+
+			printk(")\n");
+		}
+	}
+	else {
+		if ((int)__frame->gr8 > -4096 && (int)__frame->gr8 < 4096)
+			printk(KERN_CRIT "[%d] %s() = %ld\n", current->pid, name, __frame->gr8);
+		else
+			printk(KERN_CRIT "[%d] %s() = %lx\n", current->pid, name, __frame->gr8);
+	}
+	return;
+#endif
+
+	if (!test_thread_flag(TIF_SYSCALL_TRACE))
+		return;
+
+	if (!(current->ptrace & PT_PTRACED))
+		return;
+
+	/* we need to indicate entry or exit to strace */
+	if (leaving)
+		__frame->__status |= REG__STATUS_SYSC_EXIT;
+	else
+		__frame->__status |= REG__STATUS_SYSC_ENTRY;
+
+	ptrace_notify(SIGTRAP);
+
+	/*
+	 * this isn't the same as continuing with a signal, but it will do
+	 * for normal use.  strace only continues with a signal if the
+	 * stopping signal is not SIGTRAP.  -brl
+	 */
+	if (current->exit_code) {
+		send_sig(current->exit_code, current, 1);
+		current->exit_code = 0;
+	}
+}