diff options
Diffstat (limited to 'arch/um/sys-i386/ptrace.c')
| -rw-r--r-- | arch/um/sys-i386/ptrace.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/arch/um/sys-i386/ptrace.c b/arch/um/sys-i386/ptrace.c index 28bf0115032..572fd504b94 100644 --- a/arch/um/sys-i386/ptrace.c +++ b/arch/um/sys-i386/ptrace.c @@ -14,12 +14,6 @@ #include "sysdep/sigcontext.h" #include "sysdep/sc.h" -void arch_switch_to_tt(struct task_struct *from, struct task_struct *to) -{ - update_debugregs(to->thread.arch.debugregs_seq); - arch_switch_tls_tt(from, to); -} - void arch_switch_to_skas(struct task_struct *from, struct task_struct *to) { int err = arch_switch_tls_skas(from, to); @@ -233,79 +227,12 @@ static inline unsigned long twd_fxsr_to_i387( struct i387_fxsave_struct *fxsave return ret; } -/* - * FXSR floating point environment conversions. - */ - -#ifdef CONFIG_MODE_TT -static inline int convert_fxsr_to_user_tt(struct _fpstate __user *buf, - struct pt_regs *regs) -{ - struct i387_fxsave_struct *fxsave = SC_FXSR_ENV(PT_REGS_SC(regs)); - unsigned long env[7]; - struct _fpreg __user *to; - struct _fpxreg *from; - int i; - - env[0] = (unsigned long)fxsave->cwd | 0xffff0000; - env[1] = (unsigned long)fxsave->swd | 0xffff0000; - env[2] = twd_fxsr_to_i387(fxsave); - env[3] = fxsave->fip; - env[4] = fxsave->fcs | ((unsigned long)fxsave->fop << 16); - env[5] = fxsave->foo; - env[6] = fxsave->fos; - - if ( __copy_to_user( buf, env, 7 * sizeof(unsigned long) ) ) - return 1; - - to = &buf->_st[0]; - from = (struct _fpxreg *) &fxsave->st_space[0]; - for ( i = 0 ; i < 8 ; i++, to++, from++ ) { - if ( __copy_to_user( to, from, sizeof(*to) ) ) - return 1; - } - return 0; -} -#endif - static inline int convert_fxsr_to_user(struct _fpstate __user *buf, struct pt_regs *regs) { return(CHOOSE_MODE(convert_fxsr_to_user_tt(buf, regs), 0)); } -#ifdef CONFIG_MODE_TT -static inline int convert_fxsr_from_user_tt(struct pt_regs *regs, - struct _fpstate __user *buf) -{ - struct i387_fxsave_struct *fxsave = SC_FXSR_ENV(PT_REGS_SC(regs)); - unsigned long env[7]; - struct _fpxreg *to; - struct _fpreg __user *from; - int i; - - if ( __copy_from_user( env, buf, 7 * sizeof(long) ) ) - return 1; - - fxsave->cwd = (unsigned short)(env[0] & 0xffff); - fxsave->swd = (unsigned short)(env[1] & 0xffff); - fxsave->twd = twd_i387_to_fxsr((unsigned short)(env[2] & 0xffff)); - fxsave->fip = env[3]; - fxsave->fop = (unsigned short)((env[4] & 0xffff0000) >> 16); - fxsave->fcs = (env[4] & 0xffff); - fxsave->foo = env[5]; - fxsave->fos = env[6]; - - to = (struct _fpxreg *) &fxsave->st_space[0]; - from = &buf->_st[0]; - for ( i = 0 ; i < 8 ; i++, to++, from++ ) { - if ( __copy_from_user( to, from, sizeof(*from) ) ) - return 1; - } - return 0; -} -#endif - static inline int convert_fxsr_from_user(struct pt_regs *regs, struct _fpstate __user *buf) { @@ -332,39 +259,11 @@ int set_fpregs(unsigned long buf, struct task_struct *child) else return(0); } -#ifdef CONFIG_MODE_TT -int get_fpxregs_tt(unsigned long buf, struct task_struct *tsk) -{ - struct pt_regs *regs = &tsk->thread.regs; - struct i387_fxsave_struct *fxsave = SC_FXSR_ENV(PT_REGS_SC(regs)); - int err; - - err = __copy_to_user((void __user *) buf, fxsave, - sizeof(struct user_fxsr_struct)); - if(err) return -EFAULT; - else return 0; -} -#endif - int get_fpxregs(unsigned long buf, struct task_struct *tsk) { return(CHOOSE_MODE(get_fpxregs_tt(buf, tsk), 0)); } -#ifdef CONFIG_MODE_TT -int set_fpxregs_tt(unsigned long buf, struct task_struct *tsk) -{ - struct pt_regs *regs = &tsk->thread.regs; - struct i387_fxsave_struct *fxsave = SC_FXSR_ENV(PT_REGS_SC(regs)); - int err; - - err = __copy_from_user(fxsave, (void __user *) buf, - sizeof(struct user_fxsr_struct) ); - if(err) return -EFAULT; - else return 0; -} -#endif - int set_fpxregs(unsigned long buf, struct task_struct *tsk) { return(CHOOSE_MODE(set_fpxregs_tt(buf, tsk), 0)); @@ -387,25 +286,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) } #endif -#ifdef CONFIG_MODE_TT -static inline void copy_fpu_fxsave_tt(struct pt_regs *regs, - struct user_i387_struct *buf) -{ - struct i387_fxsave_struct *fpu = SC_FXSR_ENV(PT_REGS_SC(regs)); - unsigned short *to; - unsigned short *from; - int i; - - memcpy( buf, fpu, 7 * sizeof(long) ); - - to = (unsigned short *) &buf->st_space[0]; - from = (unsigned short *) &fpu->st_space[0]; - for ( i = 0 ; i < 8 ; i++, to += 5, from += 8 ) { - memcpy( to, from, 5 * sizeof(unsigned short) ); - } -} -#endif - static inline void copy_fpu_fxsave(struct pt_regs *regs, struct user_i387_struct *buf) { |