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uml: coredumping floating point fixes

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Fix core dumping of floating point state.  ELF_CORE_COPY_FPREGS gets a
definitions, and as a result, dump_fpu no longer needs to exist.  Also,
elf_fpregset_t needed a real definition.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike 2007-10-16 01:27:17 -07:00 • committed by Linus Torvalds
commit 058ac308f3
3 changed files with 12 additions and 24 deletions
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12
include/asm-um/elf-i386.h
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@ -5,7 +5,8 @@
#ifndef __UM_ELF_I386_H
#define __UM_ELF_I386_H
#include <asm/user.h>
#include <linux/sched.h>
#include "skas.h"
#define R_386_NONE 0
#define R_386_32 1
@ -75,6 +76,15 @@ typedef struct user_i387_struct elf_fpregset_t;
pr_reg[16] = PT_REGS_SS(regs); \
} while(0);
static inline int elf_core_copy_fpregs(struct task_struct *t,
elf_fpregset_t *fpu)
{
int cpu = ((struct thread_info *) t->stack)->cpu;
return save_fp_registers(userspace_pid[cpu], (unsigned long *) fpu);
}
#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)
extern long elf_aux_hwcap;
#define ELF_HWCAP (elf_aux_hwcap)

2
include/asm-um/elf-x86_64.h
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@ -36,7 +36,7 @@ typedef unsigned long elf_greg_t;
#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct { } elf_fpregset_t;
typedef struct user_i387_struct elf_fpregset_t;
/*
* This is used to ensure we don't load something for the wrong architecture.