[PATCH] dump_thread() cleanup

)

From: Adrian Bunk <bunk@stusta.de>

- create one common dump_thread() prototype in kernel.h

- dump_thread() is only used in fs/binfmt_aout.c and can therefore be
  removed on all architectures where CONFIG_BINFMT_AOUT is not
  available

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

24 files changed, 1 insertions, 245 deletions

diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c
index f3e98f83778..1898ea79d0e 100644
--- a/arch/alpha/kernel/alpha_ksyms.c
+++ b/arch/alpha/kernel/alpha_ksyms.c
@@ -40,7 +40,6 @@
 #include <asm/unistd.h>
 
 extern struct hwrpb_struct *hwrpb;
-extern void dump_thread(struct pt_regs *, struct user *);
 extern spinlock_t rtc_lock;
 
 /* these are C runtime functions with special calling conventions: */
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 90752f6d886..486d7945583 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -7,6 +7,7 @@
 /* 2.3.x zone allocator, 1999 Andrea Arcangeli <andrea@suse.de> */
 
 #include <linux/config.h>
+#include <linux/pagemap.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
diff --git a/arch/arm26/kernel/armksyms.c b/arch/arm26/kernel/armksyms.c
index 35514b398e2..811a6376c62 100644
--- a/arch/arm26/kernel/armksyms.c
+++ b/arch/arm26/kernel/armksyms.c
@@ -35,7 +35,6 @@
 #include <asm/checksum.h>
 #include <asm/mach-types.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern int dump_fpu(struct pt_regs *, struct user_fp_struct *);
 extern void inswb(unsigned int port, void *to, int len);
 extern void outswb(unsigned int port, const void *to, int len);
diff --git a/arch/cris/kernel/crisksyms.c b/arch/cris/kernel/crisksyms.c
index 85833d704eb..de39725da92 100644
--- a/arch/cris/kernel/crisksyms.c
+++ b/arch/cris/kernel/crisksyms.c
@@ -21,7 +21,6 @@
 #include <asm/pgtable.h>
 #include <asm/fasttimer.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern unsigned long get_cmos_time(void);
 extern void __Udiv(void);
 extern void __Umod(void);
@@ -33,7 +32,6 @@ extern void __lshrdi3(void);
 extern void iounmap(volatile void * __iomem);
 
 /* Platform dependent support */
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(kernel_thread);
 EXPORT_SYMBOL(get_cmos_time);
 EXPORT_SYMBOL(loops_per_usec);
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 7c80afb1046..4ab3e87115b 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -257,34 +257,6 @@ void flush_thread(void)
 {
 }
 
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-#if 0
-        int i;
-
-        /* changed the size calculations - should hopefully work better. lbt */
-        dump->magic = CMAGIC;
-        dump->start_code = 0;
-        dump->start_stack = regs->esp & ~(PAGE_SIZE - 1);
-        dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-        dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
-        dump->u_dsize -= dump->u_tsize;
-        dump->u_ssize = 0;
-        for (i = 0; i < 8; i++)
-                dump->u_debugreg[i] = current->debugreg[i];  
-
-        if (dump->start_stack < TASK_SIZE)
-                dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
-
-        dump->regs = *regs;
-
-        dump->u_fpvalid = dump_fpu (regs, &dump->i387);
-#endif 
-}
-
 /* Fill in the fpu structure for a core dump. */
 int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 {
diff --git a/arch/frv/kernel/frv_ksyms.c b/arch/frv/kernel/frv_ksyms.c
index 5f118c89d09..0f1c6cbc4f5 100644
--- a/arch/frv/kernel/frv_ksyms.c
+++ b/arch/frv/kernel/frv_ksyms.c
@@ -18,7 +18,6 @@
 #include <asm/hardirq.h>
 #include <asm/cacheflush.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern long __memcpy_user(void *dst, const void *src, size_t count);
 extern long __memset_user(void *dst, const void *src, size_t count);
 
@@ -27,7 +26,6 @@ extern long __memset_user(void *dst, const void *src, size_t count);
 EXPORT_SYMBOL(__ioremap);
 EXPORT_SYMBOL(iounmap);
 
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(strnlen);
 EXPORT_SYMBOL(strrchr);
 EXPORT_SYMBOL(strstr);
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index 54a452136f0..c4488379ac3 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -244,28 +244,6 @@ int copy_thread(int nr, unsigned long clone_flags,
 } /* end copy_thread() */
 
 /*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs *regs, struct user *dump)
-{
-#if 0
-        /* changed the size calculations - should hopefully work better. lbt */
-        dump->magic = CMAGIC;
-        dump->start_code = 0;
-        dump->start_stack = user_stack(regs) & ~(PAGE_SIZE - 1);
-        dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-        dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
-        dump->u_dsize -= dump->u_tsize;
-        dump->u_ssize = 0;
-
-        if (dump->start_stack < TASK_SIZE)
-                dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
-
-        dump->regs = *(struct user_context *) regs;
-#endif
-}
-
-/*
  * sys_execve() executes a new program.
  */
 asmlinkage int sys_execve(char *name, char **argv, char **envp)
diff --git a/arch/h8300/kernel/h8300_ksyms.c b/arch/h8300/kernel/h8300_ksyms.c
index 5a630233112..3e0d80ea446 100644
--- a/arch/h8300/kernel/h8300_ksyms.c
+++ b/arch/h8300/kernel/h8300_ksyms.c
@@ -22,11 +22,8 @@
 //asmlinkage long long __lshrdi3 (long long, int);
 extern char h8300_debug_device[];
 
-extern void dump_thread(struct pt_regs *, struct user *);
-
 /* platform dependent support */
 
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(strnlen);
 EXPORT_SYMBOL(strrchr);
 EXPORT_SYMBOL(strstr);
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index fe21adf3e75..585ed5efd0f 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -208,34 +208,6 @@ int copy_thread(int nr, unsigned long clone_flags,
 }
 
 /*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-/* changed the size calculations - should hopefully work better. lbt */
-        dump->magic = CMAGIC;
-        dump->start_code = 0;
-        dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
-        dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-        dump->u_dsize = ((unsigned long) (current->mm->brk +
-                                          (PAGE_SIZE-1))) >> PAGE_SHIFT;
-        dump->u_dsize -= dump->u_tsize;
-        dump->u_ssize = 0;
-
-        dump->u_ar0 = (struct user_regs_struct *)(((int)(&dump->regs)) -((int)(dump)));
-        dump->regs.er0 = regs->er0;
-        dump->regs.er1 = regs->er1;
-        dump->regs.er2 = regs->er2;
-        dump->regs.er3 = regs->er3;
-        dump->regs.er4 = regs->er4;
-        dump->regs.er5 = regs->er5;
-        dump->regs.er6 = regs->er6;
-        dump->regs.orig_er0 = regs->orig_er0;
-        dump->regs.ccr = regs->ccr;
-        dump->regs.pc  = regs->pc;
-}
-
-/*
  * sys_execve() executes a new program.
  */
 asmlinkage int sys_execve(char *name, char **argv, char **envp,int dummy,...)
diff --git a/arch/m32r/kernel/m32r_ksyms.c b/arch/m32r/kernel/m32r_ksyms.c
index e5ec134d81d..dbc8a392105 100644
--- a/arch/m32r/kernel/m32r_ksyms.c
+++ b/arch/m32r/kernel/m32r_ksyms.c
@@ -18,8 +18,6 @@
 #include <asm/irq.h>
 #include <asm/tlbflush.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
-
 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
 extern struct drive_info_struct drive_info;
 EXPORT_SYMBOL(drive_info);
@@ -27,7 +25,6 @@ EXPORT_SYMBOL(drive_info);
 
 /* platform dependent support */
 EXPORT_SYMBOL(boot_cpu_data);
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(__ioremap);
 EXPORT_SYMBOL(iounmap);
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 3bf55d92933..2a1f250349b 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -261,14 +261,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long spu,
 }
 
 /*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-        /* M32R_FIXME */
-}
-
-/*
  * Capture the user space registers if the task is not running (in user space)
  */
 int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c
index 73e2f5e168d..3d7f2000b71 100644
--- a/arch/m68k/kernel/m68k_ksyms.c
+++ b/arch/m68k/kernel/m68k_ksyms.c
@@ -23,8 +23,6 @@ asmlinkage long long __lshrdi3 (long long, int);
 asmlinkage long long __muldi3 (long long, long long);
 extern char m68k_debug_device[];
 
-extern void dump_thread(struct pt_regs *, struct user *);
-
 /* platform dependent support */
 
 EXPORT_SYMBOL(m68k_machtype);
diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68knommu/kernel/m68k_ksyms.c
index b2c62eeb3ba..eddb8d3e130 100644
--- a/arch/m68knommu/kernel/m68k_ksyms.c
+++ b/arch/m68knommu/kernel/m68k_ksyms.c
@@ -18,7 +18,6 @@
 #include <asm/checksum.h>
 #include <asm/current.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
 
 /* platform dependent support */
@@ -26,7 +25,6 @@ extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
 EXPORT_SYMBOL(__ioremap);
 EXPORT_SYMBOL(iounmap);
 EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(strnlen);
 EXPORT_SYMBOL(strrchr);
 EXPORT_SYMBOL(strstr);
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 82e7ec88880..8b3cf57ba70 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -276,52 +276,6 @@ int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu)
 }
 
 /*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-        struct switch_stack *sw;
-
-        /* changed the size calculations - should hopefully work better. lbt */
-        dump->magic = CMAGIC;
-        dump->start_code = 0;
-        dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
-        dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-        dump->u_dsize = ((unsigned long) (current->mm->brk +
-                                          (PAGE_SIZE-1))) >> PAGE_SHIFT;
-        dump->u_dsize -= dump->u_tsize;
-        dump->u_ssize = 0;
-
-        if (dump->start_stack < TASK_SIZE)
-                dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
-
-        dump->u_ar0 = (struct user_regs_struct *)((int)&dump->regs - (int)dump);
-        sw = ((struct switch_stack *)regs) - 1;
-        dump->regs.d1 = regs->d1;
-        dump->regs.d2 = regs->d2;
-        dump->regs.d3 = regs->d3;
-        dump->regs.d4 = regs->d4;
-        dump->regs.d5 = regs->d5;
-        dump->regs.d6 = sw->d6;
-        dump->regs.d7 = sw->d7;
-        dump->regs.a0 = regs->a0;
-        dump->regs.a1 = regs->a1;
-        dump->regs.a2 = regs->a2;
-        dump->regs.a3 = sw->a3;
-        dump->regs.a4 = sw->a4;
-        dump->regs.a5 = sw->a5;
-        dump->regs.a6 = sw->a6;
-        dump->regs.d0 = regs->d0;
-        dump->regs.orig_d0 = regs->orig_d0;
-        dump->regs.stkadj = regs->stkadj;
-        dump->regs.sr = regs->sr;
-        dump->regs.pc = regs->pc;
-        dump->regs.fmtvec = (regs->format << 12) | regs->vector;
-        /* dump floating point stuff */
-        dump->u_fpvalid = dump_fpu (regs, &dump->m68kfp);
-}
-
-/*
  *      Generic dumping code. Used for panic and debug.
  */
 void dump(struct pt_regs *fp)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index a942bf2d58e..7dd58f8ac6b 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -352,27 +352,6 @@ int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs)
         return 1;
 }
 
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-
-/* changed the size calculations - should hopefully work better. lbt */
-        dump->magic = CMAGIC;
-        dump->start_code = 0;
-        dump->start_stack = regs->gprs[15] & ~(PAGE_SIZE - 1);
-        dump->u_tsize = current->mm->end_code >> PAGE_SHIFT;
-        dump->u_dsize = (current->mm->brk + PAGE_SIZE - 1) >> PAGE_SHIFT;
-        dump->u_dsize -= dump->u_tsize;
-        dump->u_ssize = 0;
-        if (dump->start_stack < TASK_SIZE)
-                dump->u_ssize = (TASK_SIZE - dump->start_stack) >> PAGE_SHIFT;
-        memcpy(&dump->regs, regs, sizeof(s390_regs));
-        dump_fpu (regs, &dump->regs.fp_regs);
-        dump->regs.per_info = current->thread.per_info;
-}
-
 unsigned long get_wchan(struct task_struct *p)
 {
         struct stack_frame *sf, *low, *high;
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index fd4f240b833..8a2bea34ddd 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -305,26 +305,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
         return 0;
 }
 
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-        dump->magic = CMAGIC;
-        dump->start_code = current->mm->start_code;
-        dump->start_data  = current->mm->start_data;
-        dump->start_stack = regs->regs[15] & ~(PAGE_SIZE - 1);
-        dump->u_tsize = (current->mm->end_code - dump->start_code) >> PAGE_SHIFT;
-        dump->u_dsize = (current->mm->brk + (PAGE_SIZE-1) - dump->start_data) >> PAGE_SHIFT;
-        dump->u_ssize = (current->mm->start_stack - dump->start_stack +
-                         PAGE_SIZE - 1) >> PAGE_SHIFT;
-        /* Debug registers will come here. */
-
-        dump->regs = *regs;
-
-        dump->u_fpvalid = dump_fpu(regs, &dump->fpu);
-}
-
 /* Tracing by user break controller.  */
 static void
 ubc_set_tracing(int asid, unsigned long pc)
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
index 6954fd62470..1cf94a618be 100644
--- a/arch/sh/kernel/sh_ksyms.c
+++ b/arch/sh/kernel/sh_ksyms.c
@@ -21,14 +21,12 @@
 #include <asm/cacheflush.h>
 #include <asm/checksum.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
 extern struct hw_interrupt_type no_irq_type;
 
 EXPORT_SYMBOL(sh_mv);
 
 /* platform dependent support */
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(iounmap);
 EXPORT_SYMBOL(enable_irq);
diff --git a/arch/sh64/kernel/process.c b/arch/sh64/kernel/process.c
index b95d0414185..419b5a71044 100644
--- a/arch/sh64/kernel/process.c
+++ b/arch/sh64/kernel/process.c
@@ -775,26 +775,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
         return 0;
 }
 
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-        dump->magic = CMAGIC;
-        dump->start_code = current->mm->start_code;
-        dump->start_data  = current->mm->start_data;
-        dump->start_stack = regs->regs[15] & ~(PAGE_SIZE - 1);
-        dump->u_tsize = (current->mm->end_code - dump->start_code) >> PAGE_SHIFT;
-        dump->u_dsize = (current->mm->brk + (PAGE_SIZE-1) - dump->start_data) >> PAGE_SHIFT;
-        dump->u_ssize = (current->mm->start_stack - dump->start_stack +
-                         PAGE_SIZE - 1) >> PAGE_SHIFT;
-        /* Debug registers will come here. */
-
-        dump->regs = *regs;
-
-        dump->u_fpvalid = dump_fpu(regs, &dump->fpu);
-}
-
 asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
                         unsigned long r4, unsigned long r5,
                         unsigned long r6, unsigned long r7,
diff --git a/arch/sh64/kernel/sh_ksyms.c b/arch/sh64/kernel/sh_ksyms.c
index 0b5497d70bd..472b450e61b 100644
--- a/arch/sh64/kernel/sh_ksyms.c
+++ b/arch/sh64/kernel/sh_ksyms.c
@@ -29,7 +29,6 @@
 #include <asm/delay.h>
 #include <asm/irq.h>
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
 
 #if 0
@@ -41,7 +40,6 @@ EXPORT_SYMBOL(drive_info);
 #endif
 
 /* platform dependent support */
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(iounmap);
 EXPORT_SYMBOL(enable_irq);
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 1c8fd0fd930..0b0d492c953 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -82,8 +82,6 @@ extern int __lshrdi3(int, int);
 extern int __muldi3(int, int);
 extern int __divdi3(int, int);
 
-extern void dump_thread(struct pt_regs *, struct user *);
-
 /* Private functions with odd calling conventions. */
 extern void ___atomic24_add(void);
 extern void ___atomic24_sub(void);
diff --git a/arch/sparc64/kernel/binfmt_aout32.c b/arch/sparc64/kernel/binfmt_aout32.c
index edf52d06b28..202a80c24b6 100644
--- a/arch/sparc64/kernel/binfmt_aout32.c
+++ b/arch/sparc64/kernel/binfmt_aout32.c
@@ -36,8 +36,6 @@ static int load_aout32_binary(struct linux_binprm *, struct pt_regs * regs);
 static int load_aout32_library(struct file*);
 static int aout32_core_dump(long signr, struct pt_regs * regs, struct file *file);
 
-extern void dump_thread(struct pt_regs *, struct user *);
-
 static struct linux_binfmt aout32_format = {
         NULL, THIS_MODULE, load_aout32_binary, load_aout32_library, aout32_core_dump,
         PAGE_SIZE
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index fb7a5370dbf..d177d7e5c9d 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -94,7 +94,6 @@ extern void (*prom_palette)(int);
 
 extern int __ashrdi3(int, int);
 
-extern void dump_thread(struct pt_regs *, struct user *);
 extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs);
 
 extern unsigned long phys_base;
@@ -241,7 +240,6 @@ EXPORT_SYMBOL(io_remap_pfn_range);
 EXPORT_SYMBOL(_sigpause_common);
 EXPORT_SYMBOL(verify_compat_iovec);
 
-EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(pte_alloc_one_kernel);
 #ifndef CONFIG_SMP
diff --git a/arch/v850/kernel/process.c b/arch/v850/kernel/process.c
index 39cf247cdae..062ffa0a999 100644
--- a/arch/v850/kernel/process.c
+++ b/arch/v850/kernel/process.c
@@ -164,30 +164,6 @@ int copy_thread (int nr, unsigned long clone_flags,
 }
 
 /*
- * fill in the user structure for a core dump..
- */
-void dump_thread (struct pt_regs *regs, struct user *dump)
-{
-#if 0  /* Later.  XXX */
-        dump->magic = CMAGIC;
-        dump->start_code = 0;
-        dump->start_stack = regs->gpr[GPR_SP];
-        dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
-        dump->u_dsize = ((unsigned long) (current->mm->brk +
-                                          (PAGE_SIZE-1))) >> PAGE_SHIFT;
-        dump->u_dsize -= dump->u_tsize;
-        dump->u_ssize = 0;
-
-        if (dump->start_stack < TASK_SIZE)
-                dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
-
-        dump->u_ar0 = (struct user_regs_struct *)((int)&dump->regs - (int)dump);
-        dump->regs = *regs;
-        dump->u_fpvalid = 0;
-#endif
-}
-
-/*
  * sys_execve() executes a new program.
  */
 int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs)
diff --git a/arch/v850/kernel/v850_ksyms.c b/arch/v850/kernel/v850_ksyms.c
index 0ca64900dd9..8ffc29c1c89 100644
--- a/arch/v850/kernel/v850_ksyms.c
+++ b/arch/v850/kernel/v850_ksyms.c
@@ -21,8 +21,6 @@ extern void *trap_table;
 EXPORT_SYMBOL (trap_table);
 
 /* platform dependent support */
-extern void dump_thread (struct pt_regs *, struct user *);
-EXPORT_SYMBOL (dump_thread);
 EXPORT_SYMBOL (kernel_thread);
 EXPORT_SYMBOL (enable_irq);
 EXPORT_SYMBOL (disable_irq);