[MIPS] IRIX: Goodbye and thanks for all the fish

Never terribly functional or popular, plagued by hard to fix bugs the time
to say goodbye has more than arrived.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -2064,10 +2064,6 @@ source "fs/Kconfig.binfmt"
 config TRAD_SIGNALS
 	bool
 
-config BINFMT_IRIX
-	bool "Include IRIX binary compatibility"
-	depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
-
 config MIPS32_COMPAT
 	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
 	depends on 64BIT

arch/mips/kernel/Makefile

@@ -20,9 +20,6 @@ obj-$(CONFIG_CSRC_R4K)		+= csrc-r4k.o
 obj-$(CONFIG_CSRC_SB1250)	+= csrc-sb1250.o
 obj-$(CONFIG_SYNC_R4K)		+= sync-r4k.o
 
-binfmt_irix-objs	:= irixelf.o irixinv.o irixioctl.o irixsig.o	\
-			   irix5sys.o sysirix.o
-
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_MODULES)		+= mips_ksyms.o module.o
 
@@ -70,7 +67,6 @@ obj-$(CONFIG_IRQ_GIC)		+= irq-gic.o
 
 obj-$(CONFIG_32BIT)		+= scall32-o32.o
 obj-$(CONFIG_64BIT)		+= scall64-64.o
-obj-$(CONFIG_BINFMT_IRIX)	+= binfmt_irix.o
 obj-$(CONFIG_MIPS32_COMPAT)	+= linux32.o ptrace32.o signal32.o
 obj-$(CONFIG_MIPS32_N32)	+= binfmt_elfn32.o scall64-n32.o signal_n32.o
 obj-$(CONFIG_MIPS32_O32)	+= binfmt_elfo32.o scall64-o32.o

arch/mips/kernel/irixinv.c

-/*
- * Support the inventory interface for IRIX binaries
- * This is invoked before the mm layer is working, so we do not
- * use the linked lists for the inventory yet.
- *
- * Miguel de Icaza, 1997.
- */
-#include <linux/mm.h>
-#include <asm/inventory.h>
-#include <asm/uaccess.h>
-
-#define MAX_INVENTORY 50
-int inventory_items = 0;
-
-static inventory_t inventory [MAX_INVENTORY];
-
-void add_to_inventory(int class, int type, int controller, int unit, int state)
-{
-	inventory_t *ni = &inventory [inventory_items];
-
-	if (inventory_items == MAX_INVENTORY)
-		return;
-
-	ni->inv_class      = class;
-	ni->inv_type       = type;
-	ni->inv_controller = controller;
-	ni->inv_unit       = unit;
-	ni->inv_state      = state;
-	ni->inv_next       = ni;
-	inventory_items++;
-}
-
-int dump_inventory_to_user(void __user *userbuf, int size)
-{
-	inventory_t *inv  = &inventory [0];
-	inventory_t __user *user = userbuf;
-	int v;
-
-	if (!access_ok(VERIFY_WRITE, userbuf, size))
-		return -EFAULT;
-
-	for (v = 0; v < inventory_items; v++){
-		inv = &inventory [v];
-		if (copy_to_user (user, inv, sizeof (inventory_t)))
-			return -EFAULT;
-		user++;
-	}
-	return inventory_items * sizeof(inventory_t);
-}
-
-int __init init_inventory(void)
-{
-	/*
-	 * gross hack while we put the right bits all over the kernel
-	 * most likely this will not let just anyone run the X server
-	 * until we put the right values all over the place
-	 */
-	add_to_inventory(10, 3, 0, 0, 16400);
-	add_to_inventory(1, 1, 150, -1, 12);
-	add_to_inventory(1, 3, 0, 0, 8976);
-	add_to_inventory(1, 2, 0, 0, 8976);
-	add_to_inventory(4, 8, 0, 0, 2);
-	add_to_inventory(5, 5, 0, 0, 1);
-	add_to_inventory(3, 3, 0, 0, 32768);
-	add_to_inventory(3, 4, 0, 0, 32768);
-	add_to_inventory(3, 8, 0, 0, 524288);
-	add_to_inventory(3, 9, 0, 0, 64);
-	add_to_inventory(3, 1, 0, 0, 67108864);
-	add_to_inventory(12, 3, 0, 0, 16);
-	add_to_inventory(8, 7, 17, 0, 16777472);
-	add_to_inventory(8, 0, 0, 0, 1);
-	add_to_inventory(2, 1, 0, 13, 2);
-	add_to_inventory(2, 2, 0, 2, 0);
-	add_to_inventory(2, 2, 0, 1, 0);
-	add_to_inventory(7, 14, 0, 0, 6);
-
-	return 0;
-}

arch/mips/kernel/irixioctl.c

-/*
- * irixioctl.c: A fucking mess...
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/sockios.h>
-#include <linux/syscalls.h>
-#include <linux/tty.h>
-#include <linux/file.h>
-#include <linux/rcupdate.h>
-
-#include <asm/uaccess.h>
-#include <asm/ioctl.h>
-#include <asm/ioctls.h>
-
-#undef DEBUG_IOCTLS
-#undef DEBUG_MISSING_IOCTL
-
-struct irix_termios {
-	tcflag_t c_iflag, c_oflag, c_cflag, c_lflag;
-	cc_t c_cc[NCCS];
-};
-
-asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg)
-{
-	struct tty_struct *tp, *rtp;
-	mm_segment_t old_fs;
-	int i, error = 0;
-
-#ifdef DEBUG_IOCTLS
-	printk("[%s:%d] irix_ioctl(%d, ", current->comm, current->pid, fd);
-#endif
-	switch(cmd) {
-	case 0x00005401:
-#ifdef DEBUG_IOCTLS
-		printk("TCGETA, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TCGETA, arg);
-		break;
-
-	case 0x0000540d: {
-		struct termios kt;
-		struct irix_termios __user *it =
-			(struct irix_termios __user *) arg;
-
-#ifdef DEBUG_IOCTLS
-		printk("TCGETS, %08lx) ", arg);
-#endif
-		if (!access_ok(VERIFY_WRITE, it, sizeof(*it))) {
-			error = -EFAULT;
-			break;
-		}
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
-		set_fs(old_fs);
-		if (error)
-			break;
-
-		error = __put_user(kt.c_iflag, &it->c_iflag);
-		error |= __put_user(kt.c_oflag, &it->c_oflag);
-		error |= __put_user(kt.c_cflag, &it->c_cflag);
-		error |= __put_user(kt.c_lflag, &it->c_lflag);
-
-		for (i = 0; i < NCCS; i++)
-			error |= __put_user(kt.c_cc[i], &it->c_cc[i]);
-		break;
-	}
-
-	case 0x0000540e: {
-		struct termios kt;
-		struct irix_termios *it = (struct irix_termios *) arg;
-
-#ifdef DEBUG_IOCTLS
-		printk("TCSETS, %08lx) ", arg);
-#endif
-		if (!access_ok(VERIFY_READ, it, sizeof(*it))) {
-			error = -EFAULT;
-			break;
-		}
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
-		set_fs(old_fs);
-		if (error)
-			break;
-
-		error = __get_user(kt.c_iflag, &it->c_iflag);
-		error |= __get_user(kt.c_oflag, &it->c_oflag);
-		error |= __get_user(kt.c_cflag, &it->c_cflag);
-		error |= __get_user(kt.c_lflag, &it->c_lflag);
-
-		for (i = 0; i < NCCS; i++)
-			error |= __get_user(kt.c_cc[i], &it->c_cc[i]);
-
-		if (error)
-			break;
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TCSETS, (unsigned long) &kt);
-		set_fs(old_fs);
-		break;
-	}
-
-	case 0x0000540f:
-#ifdef DEBUG_IOCTLS
-		printk("TCSETSW, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TCSETSW, arg);
-		break;
-
-	case 0x00005471:
-#ifdef DEBUG_IOCTLS
-		printk("TIOCNOTTY, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TIOCNOTTY, arg);
-		break;
-
-	case 0x00007416: {
-		pid_t pid;
-#ifdef DEBUG_IOCTLS
-		printk("TIOCGSID, %08lx) ", arg);
-#endif
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TIOCGSID, (unsigned long)&pid);
-		set_fs(old_fs);
-		if (!error)
-			error = put_user(pid, (unsigned long __user *) arg);
-		break;
-	}
-	case 0x746e:
-		/* TIOCSTART, same effect as hitting ^Q */
-#ifdef DEBUG_IOCTLS
-		printk("TIOCSTART, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TCXONC, TCOON);
-		break;
-
-	case 0x20006968:
-#ifdef DEBUG_IOCTLS
-		printk("SIOCGETLABEL, %08lx) ", arg);
-#endif
-		error = -ENOPKG;
-		break;
-
-	case 0x40047477:
-#ifdef DEBUG_IOCTLS
-		printk("TIOCGPGRP, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TIOCGPGRP, arg);
-#ifdef DEBUG_IOCTLS
-		printk("arg=%d ", *(int *)arg);
-#endif
-		break;
-
-	case 0x40087468:
-#ifdef DEBUG_IOCTLS
-		printk("TIOCGWINSZ, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TIOCGWINSZ, arg);
-		break;
-
-	case 0x8004667e:
-		error = sys_ioctl(fd, FIONBIO, arg);
-		break;
-
-	case 0x80047476:
-		error = sys_ioctl(fd, TIOCSPGRP, arg);
-		break;
-
-	case 0x8020690c:
-		error = sys_ioctl(fd, SIOCSIFADDR, arg);
-		break;
-
-	case 0x80206910:
-		error = sys_ioctl(fd, SIOCSIFFLAGS, arg);
-		break;
-
-	case 0xc0206911:
-		error = sys_ioctl(fd, SIOCGIFFLAGS, arg);
-		break;
-
-	case 0xc020691b:
-		error = sys_ioctl(fd, SIOCGIFMETRIC, arg);
-		break;
-
-	default: {
-#ifdef DEBUG_MISSING_IOCTL
-		char *msg = "Unimplemented IOCTL cmd tell linux-mips@linux-mips.org\n";
-
-#ifdef DEBUG_IOCTLS
-		printk("UNIMP_IOCTL, %08lx)\n", arg);
-#endif
-		old_fs = get_fs(); set_fs(get_ds());
-		sys_write(2, msg, strlen(msg));
-		set_fs(old_fs);
-		printk("[%s:%d] Does unimplemented IRIX ioctl cmd %08lx\n",
-		       current->comm, current->pid, cmd);
-		do_exit(255);
-#else
-		error = sys_ioctl(fd, cmd, arg);
-#endif
-	}
-
-	};
-#ifdef DEBUG_IOCTLS
-	printk("error=%d\n", error);
-#endif
-	return error;
-}

arch/mips/kernel/process.c

@@ -125,13 +125,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	*childregs = *regs;
 	childregs->regs[7] = 0;	/* Clear error flag */
 
-#if defined(CONFIG_BINFMT_IRIX)
-	if (current->personality != PER_LINUX) {
-		/* Under IRIX things are a little different. */
-		childregs->regs[3] = 1;
-		regs->regs[3] = 0;
-	}
-#endif
 	childregs->regs[2] = 0;	/* Child gets zero as return value */
 	regs->regs[2] = p->pid;
 

arch/mips/kernel/scall32-o32.S

@@ -34,12 +34,8 @@ NESTED(handle_sys, PT_SIZE, sp)
 
 	lw	t1, PT_EPC(sp)		# skip syscall on return
 
-#if defined(CONFIG_BINFMT_IRIX)
-	sltiu	t0, v0, MAX_SYSCALL_NO + 1 # check syscall number
-#else
 	subu	v0, v0, __NR_O32_Linux	# check syscall number
 	sltiu	t0, v0, __NR_O32_Linux_syscalls + 1
-#endif
 	addiu	t1, 4			# skip to next instruction
 	sw	t1, PT_EPC(sp)
 	beqz	t0, illegal_syscall
@@ -264,22 +260,14 @@ bad_alignment:
 	END(sys_sysmips)
 
 	LEAF(sys_syscall)
-#if defined(CONFIG_BINFMT_IRIX)
-	sltiu	v0, a0, MAX_SYSCALL_NO + 1 # check syscall number
-#else
 	subu	t0, a0, __NR_O32_Linux	# check syscall number
 	sltiu	v0, t0, __NR_O32_Linux_syscalls + 1
-#endif
 	sll	t1, t0, 3
 	beqz	v0, einval
 
 	lw	t2, sys_call_table(t1)		# syscall routine
 
-#if defined(CONFIG_BINFMT_IRIX)
-	li	v1, 4000			# nr of sys_syscall
-#else
 	li	v1, 4000 - __NR_O32_Linux	# index of sys_syscall
-#endif
 	beq	t0, v1, einval			# do not recurse
 
 	/* Some syscalls like execve get their arguments from struct pt_regs
@@ -324,13 +312,6 @@ einval:	li	v0, -EINVAL
 	.endm
 
 	.macro	syscalltable
-#if defined(CONFIG_BINFMT_IRIX)
-	mille	sys_ni_syscall		0	/*    0 -  999 SVR4 flavour */
-	mille	sys_ni_syscall		0	/* 1000 - 1999 32-bit IRIX */
-	mille	sys_ni_syscall		0	/* 2000 - 2999 BSD43 flavour */
-	mille	sys_ni_syscall		0	/* 3000 - 3999 POSIX flavour */
-#endif
-
 	sys	sys_syscall		8	/* 4000 */
 	sys	sys_exit		1
 	sys	sys_fork		0

include/asm-mips/inventory.h

-/*
- * Miguel de Icaza
- */
-#ifndef __ASM_INVENTORY_H
-#define __ASM_INVENTORY_H
-
-#include <linux/compiler.h>
-
-typedef struct inventory_s {
-	struct inventory_s *inv_next;
-	int    inv_class;
-	int    inv_type;
-	int    inv_controller;
-	int    inv_unit;
-	int    inv_state;
-} inventory_t;
-
-extern int inventory_items;
-
-extern void add_to_inventory(int class, int type, int controller, int unit, int state);
-extern int dump_inventory_to_user(void __user *userbuf, int size);
-extern int __init init_inventory(void);
-
-#endif /* __ASM_INVENTORY_H */

include/asm-mips/namei.h

 #ifndef _ASM_NAMEI_H
 #define _ASM_NAMEI_H
 
-#include <linux/personality.h>
-#include <linux/stddef.h>
+/*
+ * This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ */
 
-#define IRIX_EMUL	"/usr/gnemul/irix/"
-#define RISCOS_EMUL	"/usr/gnemul/riscos/"
-
-static inline char *__emul_prefix(void)
-{
-	switch (current->personality) {
-	case PER_IRIX32:
-	case PER_IRIXN32:
-	case PER_IRIX64:
-		return IRIX_EMUL;
-
-	case PER_RISCOS:
-		return RISCOS_EMUL;
-
-	default:
-		return NULL;
-	}
-}
+#define __emul_prefix() NULL
 
 #endif /* _ASM_NAMEI_H */

include/asm-mips/prctl.h

-/*
- * IRIX prctl interface
- *
- * The IRIX kernel maps a page at PRDA_ADDRESS with the
- * contents of prda and fills it the bits on prda_sys.
- */
-
-#ifndef __PRCTL_H__
-#define __PRCTL_H__
-
-#define PRDA_ADDRESS 0x200000L
-#define PRDA ((struct prda *) PRDA_ADDRESS)
-
-struct prda_sys {
-	pid_t t_pid;
-        u32   t_hint;
-        u32   t_dlactseq;
-        u32   t_fpflags;
-        u32   t_prid;		/* processor type, $prid CP0 register */
-        u32   t_dlendseq;
-        u64   t_unused1[5];
-        pid_t t_rpid;
-        s32   t_resched;
-        u32   t_unused[8];
-        u32   t_cpu;		/* current/last cpu */
-
-	/* FIXME: The signal information, not supported by Linux now */
-	u32   t_flags;		/* if true, then the sigprocmask is in userspace */
-	u32   t_sigprocmask [1]; /* the sigprocmask */
-};
-
-struct prda {
-	char fill [0xe00];
-	struct prda_sys prda_sys;
-};
-
-#define t_sys           prda_sys
-
-ptrdiff_t prctl(int op, int v1, int v2);
-
-#endif

include/asm-mips/signal.h

@@ -119,9 +119,6 @@ struct sigaction {
 
 struct k_sigaction {
 	struct sigaction sa;
-#ifdef CONFIG_BINFMT_IRIX
-	void		(*sa_restorer)(void);
-#endif
 };
 
 /* IRIX compatible stack_t  */